San Marcos City Council
February 25, 2025

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 31 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTLT10054 A2 ZINL11072 Outlet 651.9 658.5 6.6 651.9 0.0 42.4 NO 651.9 0.0 65.7 NO 651.9 0.0 82.2 NO 651.9 0.0 90.5 NO INLT10225 A2 ZINL13099 Inlet 695.2 699.2 4.0 699.5 10.9 78.7 NO 700.9 18.9 107.1 YES 702.5 28.7 141.8 YES 702.9 32.8 154.8 YES OTLT10055 A2 ZOUT10274 Outlet 694.3 698.3 4.0 696.2 0.0 72.2 NO 696.4 0.0 97.2 NO 696.6 0.0 119.8 NO 696.7 0.0 125.6 NO OTHR10289 A2 ZOTHER10461Inlet 694.5 699.8 5.3 699.2 0.0 72.2 NO 700.4 0.0 97.2 NO 701.8 0.0 119.8 YES 702.2 0.0 125.6 YES OTHR10290 A2 ZOTHER10462Inlet 694.9 700.0 5.1 699.4 0.0 72.2 NO 700.7 0.0 97.2 NO 702.2 0.0 119.8 YES 702.6 0.0 125.6 YES OTHR10291 A2 ZOTHER10463Other 683.7 687.7 4.0 688.2 15.3 42.0 NO 692.1 30.3 53.5 YES 695.0 49.9 59.6 YES 696.1 58.0 62.2 YES OTLT10056 A2 OUT10266 Outlet 682.0 686.0 4.0 685.7 0.0 44.0 NO 687.7 0.0 60.5 YES 689.2 0.0 70.3 YES 689.6 0.0 74.6 YES OTHR10292 A2 ZOTHER10464Other 682.7 686.9 4.2 686.2 6.7 44.0 NO 688.8 11.4 60.8 YES 690.8 17.7 70.9 YES 691.4 20.3 74.9 YES OTHR10293 A2 ZOTHER10466Other 642.2 654.8 12.5 647.9 0.0 421.1 NO 650.1 0.0 683.5 NO 654.8 0.0 973.2 NO 654.8 0.0 1026.4 NO CBIN10532 A2 CI1037 Curb Inlet 651.5 655.5 4.0 651.9 1.3 1.3 NO 652.0 2.1 2.1 NO 652.3 3.0 3.0 NO 652.5 3.4 3.4 NO CLEN10365 A2 ZCO12143 Cleanout 650.3 655.6 5.3 651.3 0.0 7.3 NO 651.7 0.0 13.7 NO 652.2 0.0 21.3 NO 652.3 0.0 24.7 NO CLEN10366 A2 ZCO12690 Cleanout 650.7 654.9 4.3 651.5 0.0 6.0 NO 651.9 0.0 11.7 NO 652.2 0.0 18.3 NO 652.4 0.0 21.3 NO CLEN10367 A2 ZCO12691 Cleanout 646.4 655.6 9.3 649.5 0.0 48.8 NO 651.6 0.0 70.3 NO 652.5 0.0 105.6 NO 652.7 0.0 113.9 NO OTHR10294 A2 ZOTHER10467Other 647.7 655.7 8.0 649.8 0.0 42.1 NO 651.6 0.0 59.9 NO 652.2 0.0 81.5 NO 652.3 0.0 89.7 NO CBIN10533 A2 CI0227 Curb Inlet 699.1 703.1 4.0 704.4 23.9 27.8 YES 707.1 41.6 46.7 YES 710.4 63.9 70.3 YES 712.1 73.0 83.4 YES CLEN10368 A2 ZCO12710 Cleanout 576.9 586.4 9.5 580.4 0.0 247.4 NO 580.8 0.0 304.5 NO 581.8 0.0 397.0 NO 582.0 0.0 419.6 NO CBIN10534 A2 ZCI10488 Curb Inlet 748.7 756.3 7.6 750.4 41.1 41.1 NO 751.3 70.5 70.5 NO 758.8 106.3 115.3 YES 761.8 121.4 121.4 YES CBIN10535 A2 CI1033 Curb Inlet 653.3 660.3 7.0 660.3 33.2 38.0 NO 661.6 60.0 67.8 YES 663.9 96.7 107.7 YES 665.1 113.4 125.9 YES CBIN10536 A2 CI0374 Curb Inlet 778.8 784.9 6.1 780.2 20.2 20.2 NO 786.3 37.2 37.2 YES 796.3 57.8 57.8 YES 801.5 66.2 66.2 YES CLEN10369 A2 ZCO12860 Cleanout 586.5 591.1 4.7 587.2 2.9 7.5 NO 587.4 4.5 12.0 NO 587.7 6.5 17.8 NO 587.8 7.3 20.2 NO CLEN10370 A2 ZCO12711 Cleanout 590.2 596.8 6.5 590.8 4.9 4.9 NO 591.0 7.8 7.8 NO 591.2 11.7 11.7 NO 591.3 13.3 13.3 NO CBIN10537 A2 CI0981 Curb Inlet 590.5 596.7 6.3 590.8 0.0 0.0 NO 591.0 0.0 0.0 NO 591.2 0.0 0.1 NO 591.3 0.0 0.1 NO CBIN10538 A2 CI0968 Curb Inlet 592.0 597.2 5.2 592.0 0.0 0.0 NO 592.0 0.0 0.0 NO 592.0 0.0 0.0 NO 592.0 0.0 0.0 NO CBIN10539 A2 CI0636 Curb Inlet 684.9 688.9 4.0 691.2 14.2 40.9 YES 696.1 23.8 56.9 YES 704.0 36.4 75.9 YES 707.7 41.3 83.4 YES OTLT10057 A2 OUT10280 Outlet 684.3 688.3 4.0 685.0 4.8 51.6 NO 685.1 8.1 73.6 NO 685.2 12.3 101.0 NO 685.2 13.9 112.1 NO CLEN10371 A2 ZCO12732 Cleanout 621.1 625.1 4.0 621.1 0.0 0.0 NO 621.1 0.0 0.0 NO 621.1 0.0 0.0 NO 621.1 0.0 0.0 NO INLT10226 A2 ZINL10733 Inlet 620.3 624.3 4.0 620.6 3.1 3.1 NO 620.7 5.0 5.0 NO 620.8 7.4 7.4 NO 620.8 8.4 8.4 NO INLT10227 A2 ZINL10735 Inlet 622.4 626.4 4.0 622.4 0.0 0.0 NO 622.4 0.0 0.0 NO 622.4 0.0 0.0 NO 622.8 0.0 0.8 NO INLT10228 A2 ZINL11351 Inlet 621.9 626.8 4.9 622.1 1.0 1.0 NO 622.3 1.5 1.5 NO 623.0 2.2 2.2 NO 626.8 2.4 3.5 NO OTHR10295 A2 ZOTHER10671Other 619.1 627.2 8.1 621.5 0.0 106.5 NO 622.3 0.0 161.8 NO 623.0 0.0 194.7 NO 627.2 0.0 202.4 NO OTHR10296 A2 ZOTHER10672Other 618.5 627.6 9.1 620.6 2.8 108.5 NO 621.3 4.5 161.7 NO 621.8 6.6 205.8 NO 622.9 7.5 211.4 NO CBIN10540 A2 CI0470 Curb Inlet 626.9 635.4 8.5 628.3 0.0 11.1 NO 635.4 0.0 18.9 NO 638.8 0.0 25.6 YES 641.4 0.0 26.0 YES CBIN10541 A2 CI0593 Curb Inlet 634.0 643.6 9.6 634.8 11.2 11.2 NO 635.2 18.9 18.9 NO 643.6 28.1 30.4 NO 643.7 31.8 31.8 NO CLEN10372 A2 ZCO11784 Cleanout 632.4 638.3 6.0 633.1 0.0 11.2 NO 638.3 0.0 18.6 NO 640.2 0.0 28.1 YES 643.0 0.0 31.8 YES CBIN10542 A2 CI0594 Curb Inlet 635.0 644.2 9.3 635.0 0.0 0.0 NO 635.2 0.0 0.2 NO 644.2 0.0 10.4 NO 644.2 0.0 8.2 NO CBIN10543 A2 CI0524 Curb Inlet 655.9 662.1 6.2 657.2 3.9 3.9 NO 663.9 6.6 6.6 YES 672.4 10.1 10.1 YES 676.4 11.5 11.5 YES CLEN10373 A2 ZCO10753 Cleanout 737.3 742.0 4.7 737.7 0.0 4.6 NO 737.8 0.0 8.3 NO 738.0 0.0 12.6 NO 738.0 0.0 14.3 NO CLEN10374 A2 ZCO10754 Cleanout 743.5 752.8 9.3 743.8 0.0 4.6 NO 743.9 0.0 8.3 NO 744.0 0.0 12.5 NO 744.1 0.0 14.3 NO CBIN10544 A2 CI0660 Curb Inlet 738.3 742.3 4.0 738.3 0.0 0.0 NO 738.3 0.0 0.0 NO 738.3 0.0 0.0 NO 738.3 0.0 0.0 NO CBIN10545 A2 CI10504 Curb Inlet 748.7 756.0 7.3 749.2 4.6 4.6 NO 749.3 8.3 8.3 NO 749.5 12.6 12.6 NO 749.5 14.4 14.4 NO CBIN10546 A2 CI10505 Curb Inlet 749.6 756.3 6.7 749.6 0.0 0.0 NO 749.6 0.0 0.0 NO 749.6 0.0 0.0 NO 749.6 0.0 0.0 NO CBIN10547 A2 CI10506 Curb Inlet 742.2 748.7 6.4 742.2 0.0 0.0 NO 742.2 0.0 0.0 NO 742.2 0.0 0.0 NO 742.2 0.0 0.0 NO CBIN10548 A2 CI10507 Curb Inlet 742.8 749.1 6.3 742.8 0.0 0.0 NO 742.8 0.0 0.0 NO 742.8 0.0 0.0 NO 742.8 0.0 0.0 NO CBIN10549 A2 CI10508 Curb Inlet 745.3 750.7 5.5 745.3 0.0 0.0 NO 745.3 0.0 0.0 NO 745.3 0.0 0.0 NO 745.3 0.0 0.0 NO CLEN10375 A2 ZCO12983 Cleanout 741.2 748.3 7.0 741.2 0.0 0.0 NO 741.2 0.0 0.0 NO 741.2 0.0 0.0 NO 741.2 0.0 0.0 NO CLEN10376 A2 ZCO12189 Cleanout 736.8 740.9 4.1 736.8 0.0 0.0 NO 736.8 0.0 0.0 NO 736.8 0.0 0.0 NO 736.8 0.0 0.0 NO CBIN10550 A2 CI10509 Curb Inlet 725.3 739.0 13.7 725.3 0.0 0.0 NO 725.3 0.0 0.0 NO 725.3 0.0 0.0 NO 725.3 0.0 0.0 NO CBIN10551 A2 CI0659 Curb Inlet 721.4 727.2 5.8 721.4 0.0 0.0 NO 721.4 0.0 0.0 NO 721.4 0.0 0.0 NO 721.4 0.0 0.0 NO INLT10229 A2 ZINL10755 Inlet 721.9 730.4 8.4 721.9 0.0 0.0 NO 721.9 0.0 0.0 NO 721.9 0.0 0.0 NO 721.9 0.0 0.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 32 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10230 A2 ZINL10756 Inlet 724.3 729.8 5.5 724.3 0.0 0.0 NO 724.3 0.0 0.0 NO 724.3 0.0 0.0 NO 724.3 0.0 0.0 NO INLT10231 A2 ZINL10757 Inlet 740.3 744.4 4.1 740.3 0.0 0.0 NO 740.3 0.0 0.0 NO 740.3 0.0 0.0 NO 740.3 0.0 0.0 NO CBIN10552 A2 CI10510 Curb Inlet 732.8 739.3 6.5 732.8 0.0 0.0 NO 732.8 0.0 0.0 NO 732.8 0.0 0.0 NO 732.8 0.0 0.0 NO OTLT10058 A2 INL052 Outlet 719.6 723.6 4.0 719.8 0.0 1.5 NO 720.1 0.0 5.0 NO 720.6 0.0 11.5 NO 720.7 0.0 14.9 NO CBIN10553 A2 ZCI10511 Curb Inlet 630.3 640.6 10.3 630.3 0.0 0.0 NO 630.3 0.0 0.0 NO 630.3 0.0 0.0 NO 630.3 0.0 0.0 NO CBIN10554 A2 ZCI10512 Curb Inlet 638.7 644.4 5.7 638.7 0.0 0.0 NO 638.7 0.0 0.0 NO 638.7 0.0 0.0 NO 638.7 0.0 0.0 NO CBIN10555 A2 CI0516 Curb Inlet 603.8 610.3 6.5 604.7 10.5 24.4 NO 604.9 16.6 38.9 NO 610.3 24.3 57.9 NO 610.3 27.4 59.0 NO CBIN10556 A2 CI0517 Curb Inlet 604.5 610.4 5.9 604.7 0.0 0.0 NO 604.9 0.0 0.1 NO 610.4 0.0 3.8 NO 610.5 0.0 4.3 NO CLEN10377 A2 CO0515 Cleanout 596.9 604.0 7.1 597.6 0.0 24.5 NO 604.0 0.0 39.0 NO 604.0 0.0 56.3 NO 604.8 0.0 57.6 NO CLEN10378 A2 ZCO10784 Cleanout 681.3 689.3 8.0 681.9 0.0 11.9 NO 682.2 0.0 22.3 NO 682.4 0.0 33.7 NO 682.8 0.0 38.5 NO CLEN10379 A2 ZCO11858 Cleanout 673.1 682.8 9.7 674.6 0.0 68.3 NO 675.6 0.0 169.8 NO 676.6 0.0 278.7 NO 677.1 0.0 320.9 NO OTHR10297 A2 ZOTHER10683Other 672.0 681.4 9.4 673.5 4.3 69.3 NO 674.5 7.4 172.4 NO 675.5 11.2 283.0 NO 676.0 12.7 325.8 NO OTHR10298 A2 ZOTHER10684Other 676.5 685.6 9.0 678.1 2.9 68.3 NO 679.1 4.9 169.7 NO 680.1 7.3 278.5 NO 680.6 8.2 321.3 NO OTHR10299 A2 ZOTHER10685Other 683.6 691.7 8.1 684.2 0.0 11.9 NO 684.5 0.0 22.3 NO 684.7 0.0 33.7 NO 684.8 0.0 38.4 NO OTHR10300 A2 ZOTHER10686Other 683.7 692.0 8.3 684.2 0.0 0.0 NO 684.5 0.0 0.1 NO 684.7 0.0 0.1 NO 684.8 0.0 0.1 NO CBIN10557 A2 CI0231 Curb Inlet 686.3 690.8 4.5 687.2 11.9 11.9 NO 690.4 22.3 22.3 NO 690.8 33.7 33.7 NO 690.9 38.8 38.8 NO CBIN10558 A2 CI10518 Curb Inlet 677.3 681.3 4.0 677.3 0.0 0.0 NO 677.3 0.0 0.0 NO 677.3 0.0 0.0 NO 677.3 0.0 0.0 NO CBIN10559 A2 CI1027 Curb Inlet 686.8 693.3 6.5 687.4 6.7 6.7 NO 687.5 11.1 11.1 NO 687.7 16.7 16.7 NO 687.8 18.9 18.9 NO CBIN10560 A2 CI1028 Curb Inlet 687.4 693.2 5.8 687.4 0.0 0.0 NO 687.5 0.0 0.0 NO 687.7 0.0 0.0 NO 687.8 0.0 0.0 NO INLT10232 A2 ZINL11090 Inlet 672.9 680.5 7.6 672.9 0.0 0.0 NO 672.9 0.0 0.0 NO 672.9 0.0 0.0 NO 672.9 0.0 0.0 NO CBIN10561 A2 CI10520 Curb Inlet 572.7 576.8 4.1 573.1 4.1 4.1 NO 573.2 6.9 6.9 NO 573.3 10.4 10.4 NO 573.4 11.8 11.8 NO OTHR10301 A2 ZOTHER10743Other 573.1 577.1 4.0 573.1 0.0 0.0 NO 573.2 0.0 0.0 NO 573.3 0.0 0.0 NO 573.4 0.0 0.0 NO CBIN10562 A2 ZCI10526 Curb Inlet 648.4 654.6 6.3 649.5 0.0 0.6 NO 652.3 0.0 0.5 NO 654.6 0.0 1.5 NO 654.6 0.0 1.0 NO OTHR10302 A2 ZOTHER10757Other 645.2 655.5 10.3 649.4 1.3 49.9 NO 651.6 2.2 69.4 NO 653.2 3.3 106.3 NO 655.5 3.8 117.4 NO OTHR10303 A2 ZOTHER10758Other 642.1 656.3 14.2 647.7 0.0 420.5 NO 649.9 0.0 683.4 NO 656.3 0.0 966.7 NO 656.3 0.0 1032.8 NO OTHR10304 A2 ZOTHER10759Other 667.5 676.7 9.2 669.1 0.8 69.5 NO 670.1 1.4 172.8 NO 671.1 2.0 283.9 NO 671.5 2.3 326.4 NO CBIN10563 A2 CI10676 Curb Inlet 616.8 627.1 10.3 627.8 2.4 232.9 NO 631.6 3.9 267.3 YES 635.0 5.8 290.4 YES 637.9 6.6 302.0 YES CLEN10380 A2 ZCO12201 Cleanout 607.5 616.9 9.4 619.5 10.5 235.7 YES 620.0 16.4 284.2 YES 620.6 23.9 301.6 YES 622.6 26.9 315.1 YES CLEN10381 A2 ZCO12758 Cleanout 621.9 634.9 13.0 635.1 1.1 230.2 NO 639.8 1.7 250.6 YES 644.6 2.4 266.0 YES 647.6 2.7 270.0 YES CBIN10564 A2 CI10699 Curb Inlet 617.7 627.5 9.8 627.8 0.0 33.1 NO 631.8 0.0 31.6 YES 635.3 0.0 37.0 YES 638.3 0.0 35.3 YES OTHR10305 A2 ZOTHER10775Other 619.0 627.6 8.5 627.9 0.9 25.9 NO 632.4 1.4 34.6 YES 636.4 2.0 40.4 YES 639.5 2.2 42.9 YES CBIN10565 A2 CI0150 Curb Inlet 624.0 631.3 7.3 634.4 5.1 16.4 YES 639.8 8.1 18.1 YES 644.7 11.9 18.2 YES 647.8 13.4 16.9 YES CBIN10566 A2 CI0153 Curb Inlet 624.7 631.7 7.0 634.3 0.0 12.0 YES 639.9 0.0 11.8 YES 644.7 0.0 8.8 YES 647.9 0.0 10.8 YES CBIN10567 A2 CI0151 Curb Inlet 624.5 638.0 13.5 638.4 6.7 221.4 NO 643.4 11.0 245.5 YES 648.7 16.1 261.5 YES 651.9 18.2 271.2 YES CLEN10382 A2 CO14003 Cleanout 628.3 642.7 14.4 642.9 23.5 245.3 NO 649.2 44.4 269.4 YES 655.0 69.2 261.6 YES 658.3 79.2 273.6 YES CBIN10568 A2 CI0512 Curb Inlet 606.0 613.5 7.5 617.4 10.4 14.1 YES 618.1 16.9 16.9 YES 618.6 25.2 25.2 YES 619.2 28.7 28.7 YES CBIN10569 A2 CI0513 Curb Inlet 604.5 613.8 9.3 617.1 3.9 334.7 YES 617.4 6.1 343.7 YES 617.7 8.9 374.6 YES 618.1 10.0 386.2 YES OTHR10306 A2 ZOTHER11716Other 602.7 616.7 14.0 617.3 3.1 372.8 NO 617.4 4.9 387.7 NO 617.0 7.2 394.0 NO 617.5 8.1 435.6 NO CLEN10383 A2 ZCO11093 Cleanout 601.8 616.5 14.7 616.6 6.7 374.4 NO 616.6 11.2 391.6 NO 616.6 17.0 401.6 NO 616.6 19.4 449.0 NO OTLT10059 A2 OUT10343 Outlet 600.6 610.8 10.2 604.9 0.0 381.8 NO 605.5 0.0 400.9 NO 605.7 0.0 407.7 NO 605.8 0.0 447.4 NO INLT10233 A2 INL12203 Inlet 630.7 640.4 9.7 641.7 10.7 51.4 YES 649.2 18.7 66.7 YES 655.1 28.4 46.1 YES 658.3 32.4 47.7 YES CLEN10384 A2 ZCO10801 Cleanout 576.2 583.0 6.8 576.5 0.0 2.5 NO 576.6 0.0 4.0 NO 576.7 0.0 5.9 NO 576.7 0.0 6.6 NO CBIN10570 A2 CI0967 Curb Inlet 578.9 583.7 4.7 579.1 0.8 0.8 NO 579.2 1.4 1.4 NO 579.2 2.0 2.0 NO 579.2 2.2 2.2 NO CBIN10571 A2 CI0978 Curb Inlet 579.3 583.3 4.0 579.5 0.3 0.3 NO 579.5 0.5 0.5 NO 579.5 0.7 0.7 NO 579.6 0.8 0.8 NO CLEN10385 A2 ZCO12213 Cleanout 578.1 584.7 6.6 578.4 0.6 1.4 NO 578.5 1.0 2.3 NO 578.6 1.5 3.3 NO 578.6 1.7 3.7 NO INLT10234 A2 ZINL10802 Inlet 580.1 586.6 6.5 580.4 0.8 0.8 NO 580.4 1.3 1.3 NO 580.5 1.9 1.9 NO 580.5 2.1 2.1 NO INLT10235 A2 ZINL10007 Inlet 628.5 635.7 7.2 628.7 0.9 0.9 NO 628.7 1.4 1.4 NO 628.8 2.0 2.0 NO 628.8 2.3 2.3 NO INLT10236 A2 ZINL10008 Inlet 620.6 625.9 5.3 620.8 0.0 0.9 NO 620.8 0.0 1.4 NO 620.9 0.0 2.0 NO 620.9 0.0 2.3 NO INLT10237 A2 ZINL11165 Inlet 610.6 615.9 5.3 610.8 0.0 0.9 NO 610.8 0.0 1.4 NO 610.9 0.0 2.0 NO 610.9 0.0 2.3 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 33 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10238 A2 ZINL11166 Inlet 599.9 606.0 6.0 600.2 0.0 0.8 NO 600.2 0.0 1.4 NO 606.0 0.0 11.9 NO 606.0 0.0 12.5 NO CLEN10386 A2 ZCO12220 Cleanout 592.2 601.2 9.0 594.3 0.0 29.3 NO 601.2 0.0 44.5 NO 601.8 0.0 68.8 NO 602.9 0.0 73.7 YES OTHR10307 A2 ZOTHER10785Other 607.1 613.9 6.8 607.2 0.0 0.9 NO 607.3 0.0 1.4 NO 607.3 0.0 2.0 NO 607.3 0.0 2.3 NO OTHR10308 A2 ZOTHER10786Other 597.8 603.6 5.8 598.1 0.0 0.8 NO 598.2 0.0 1.4 NO 603.7 0.0 10.5 NO 603.7 0.0 10.9 NO CBIN10572 A2 CI0469 Curb Inlet 624.7 635.6 10.9 635.6 9.7 20.5 NO 635.7 15.2 36.8 NO 638.0 22.1 41.8 YES 640.8 24.8 43.1 YES CBIN10573 A2 CI1154 Curb Inlet 618.2 626.9 8.7 621.5 0.0 0.2 NO 627.0 0.0 4.8 NO 628.4 0.0 4.4 YES 629.5 0.0 4.9 YES OTHR10309 A2 ZOTHER10809Other 616.8 628.7 11.9 620.7 0.0 38.1 NO 628.7 0.0 72.1 NO 628.8 0.0 92.9 NO 629.3 0.0 93.0 NO CBIN10574 A2 CI10589 Curb Inlet 616.2 629.6 13.4 621.8 3.5 3.5 NO 621.5 5.4 5.4 NO 623.6 7.8 7.8 NO 624.6 8.7 8.7 NO CLEN10387 A2 ZCO11095 Cleanout 615.6 629.9 14.4 621.0 0.0 3.5 NO 621.4 0.0 5.4 NO 623.3 0.0 7.8 NO 624.5 0.0 8.7 NO CBIN10575 A2 CI10590 Curb Inlet 614.3 627.8 13.5 619.8 1.5 5.0 NO 621.3 2.4 7.8 NO 624.6 3.5 11.2 NO 624.2 3.9 12.6 NO CLEN10388 A2 ZCO10854 Cleanout 614.0 625.6 11.6 619.7 1.0 58.8 NO 621.2 1.6 92.9 NO 624.3 2.3 120.7 NO 624.1 2.6 136.0 NO CLEN10389 A2 ZCO10058 Cleanout 672.5 678.9 6.5 672.5 0.0 0.0 NO 672.5 0.0 0.0 NO 672.5 0.0 0.0 NO 679.0 0.0 6.1 NO CBIN10576 A2 CI0329 Curb Inlet 698.3 703.7 5.5 698.3 0.0 0.0 NO 703.8 0.0 0.4 NO 705.8 0.0 1.4 YES 708.2 0.0 19.9 YES CBIN10577 A2 CI0330 Curb Inlet 697.4 703.2 5.8 697.8 0.0 0.7 NO 703.2 0.0 2.0 NO 705.8 0.0 3.9 YES 708.2 0.0 35.2 YES OTHR10310 A2 ZOTHER10820Other 691.8 704.5 12.8 697.7 0.0 253.8 NO 701.0 0.0 476.5 NO 705.8 0.0 741.8 YES 708.2 0.0 940.8 YES CLEN10390 A2 ZCO10063 Cleanout 645.1 656.6 11.5 646.5 0.0 21.2 NO 647.0 0.0 36.3 NO 647.6 0.0 55.1 NO 656.6 0.0 61.0 NO CBIN10578 A2 CI0254 Curb Inlet 671.1 675.6 4.5 671.1 0.0 0.0 NO 671.1 0.0 0.0 NO 671.1 0.0 0.0 NO 671.1 0.0 0.0 NO OTHR10311 A2 ZOTHER10821Other 668.8 673.3 4.5 669.3 8.9 8.9 NO 669.5 14.3 14.3 NO 669.7 21.2 21.2 NO 669.7 24.0 24.0 NO CBIN10579 A2 CI0580 Curb Inlet 671.6 675.6 4.0 671.6 0.0 0.0 NO 673.1 0.0 5.4 NO 680.2 0.0 14.8 YES 682.2 0.0 11.0 YES INLT10239 A2 ZINL10066 Inlet 634.3 638.3 4.0 635.3 1.1 17.3 NO 635.6 1.8 30.7 NO 636.1 2.7 47.2 NO 637.3 3.1 54.0 NO CLEN10391 A2 ZCO10067 Cleanout 671.5 683.9 12.4 673.4 0.0 138.5 NO 674.0 0.0 227.0 NO 674.4 0.0 291.5 NO 675.0 0.0 324.2 NO CBIN10580 A2 ZCI10620 Curb Inlet 750.5 755.7 5.2 750.5 0.0 0.0 NO 751.3 0.0 0.2 NO 758.9 0.0 12.6 YES 761.8 0.0 12.3 YES INLT10240 A2 INL051 Inlet 750.0 755.8 5.9 750.4 0.0 0.3 NO 751.3 0.0 0.7 NO 758.9 0.0 17.2 YES 761.9 0.0 18.2 YES CBIN10581 A2 ZCI10621 Curb Inlet 744.1 752.0 7.9 745.1 0.0 0.0 NO 745.8 0.0 0.0 NO 752.1 0.0 11.7 NO 752.4 0.0 16.8 NO OTLT10060 A2 OUT028 Outlet 673.3 678.7 5.5 675.3 0.0 59.9 NO 675.9 0.0 100.5 NO 677.7 0.0 217.1 NO 680.2 0.0 215.6 YES CBIN10582 A2 CI0514 Curb Inlet 637.5 644.0 6.5 638.3 12.9 12.9 NO 638.7 20.9 20.9 NO 645.0 31.0 32.4 YES 649.1 35.2 37.5 YES CBIN10583 A2 CI0518 Curb Inlet 643.0 649.8 6.8 643.0 0.0 0.0 NO 643.0 0.0 0.0 NO 649.9 0.0 3.0 NO 649.9 0.0 3.6 NO CBIN10584 A2 CI0519 Curb Inlet 628.6 634.0 5.4 629.4 1.8 14.4 NO 629.6 2.8 23.2 NO 634.0 4.1 30.4 NO 634.3 4.6 31.2 NO CLEN10392 A2 ZCO10907 Cleanout 700.4 705.7 5.3 701.3 0.0 16.1 NO 701.7 0.0 26.9 NO 706.9 0.0 50.1 YES 709.7 0.0 47.2 YES CBIN10585 A2 CI10665 Curb Inlet 702.3 706.3 4.0 702.3 0.0 0.0 NO 702.3 0.0 0.0 NO 706.9 0.0 11.4 NO 709.7 0.0 9.7 YES CBIN10586 A2 CI10624 Curb Inlet 707.5 711.5 4.0 707.5 0.0 0.0 NO 707.5 0.0 0.0 NO 708.0 0.0 1.6 NO 711.6 0.0 4.5 NO OTHR10312 A2 ZOTHER10831Other 692.7 704.0 11.3 698.7 249.9 253.6 NO 701.4 470.5 476.5 NO 706.8 734.1 742.0 YES 709.5 858.1 888.6 YES INLT10241 A2 ZINL10908 Inlet 695.6 702.8 7.2 697.4 124.9 124.9 NO 698.4 258.7 258.7 NO 698.9 416.4 416.4 NO 702.9 489.0 489.0 NO OTHR10313 A2 ZOTHER10832Other 692.5 703.8 11.3 694.2 0.0 126.1 NO 695.1 0.0 261.0 NO 696.1 0.0 460.3 NO 703.8 0.0 566.6 NO CBIN10587 A2 CI10625 Curb Inlet 696.5 702.5 6.0 696.5 0.0 0.0 NO 696.5 0.0 0.0 NO 696.6 0.0 0.0 NO 703.0 0.0 15.3 NO CLEN10393 A2 ZCO11891 Cleanout 695.1 703.9 8.8 695.9 0.0 9.6 NO 696.1 0.0 17.0 NO 696.6 0.0 25.0 NO 704.3 0.0 29.1 NO CBIN10588 A2 CI10626 Curb Inlet 696.7 702.7 6.0 697.7 9.6 9.6 NO 702.8 16.3 16.3 NO 702.8 24.6 24.6 NO 703.6 28.0 28.0 NO CLEN10394 A2 ZCO11097 Cleanout 636.6 647.1 10.5 647.2 0.0 200.8 NO 654.1 0.0 211.5 YES 660.1 0.0 219.9 YES 663.2 0.0 222.7 YES CBIN10589 A2 CI0656 Curb Inlet 777.0 786.5 9.4 777.2 0.0 1.2 NO 777.2 0.0 2.1 NO 777.2 0.0 3.2 NO 777.2 0.0 3.6 NO CBIN10590 A2 CI1512 Curb Inlet 757.0 764.0 7.0 757.2 0.0 1.2 NO 757.3 0.0 2.1 NO 757.4 0.0 3.2 NO 757.4 0.0 3.6 NO CBIN10591 A2 CI1513 Curb Inlet 756.0 763.5 7.5 756.3 2.1 3.2 NO 756.3 4.0 6.1 NO 756.4 6.2 9.3 NO 756.5 7.0 10.6 NO CBIN10592 A2 CI1516 Curb Inlet 735.0 741.7 6.7 735.4 0.0 3.2 NO 735.6 0.0 6.0 NO 735.7 0.0 9.2 NO 735.8 0.0 10.6 NO CBIN10593 A2 CI1515 Curb Inlet 732.7 739.3 6.7 733.2 1.8 4.9 NO 733.4 3.5 9.4 NO 733.6 5.3 14.3 NO 733.7 6.1 16.4 NO CBIN10594 A2 CI1514 Curb Inlet 727.9 734.6 6.7 728.5 1.0 5.8 NO 728.7 2.3 11.5 NO 729.0 3.7 17.9 NO 729.0 4.3 20.5 NO CLEN10395 A2 ZCO10076 Cleanout 738.0 752.8 14.8 738.4 0.0 3.2 NO 738.6 0.0 6.1 NO 738.7 0.0 9.3 NO 738.7 0.0 10.6 NO INLT10242 A2 INL050 Inlet 777.7 787.3 9.5 778.0 1.2 1.2 NO 778.1 2.1 2.1 NO 778.2 3.2 3.2 NO 778.2 3.6 3.6 NO OTLT10061 A2 OUT10210 Outlet 727.2 731.2 4.0 727.9 0.0 5.8 NO 728.1 0.0 11.6 NO 728.2 0.0 17.9 NO 728.4 0.0 20.4 NO CLEN10396 A2 ZCO11823 Cleanout 677.9 686.5 8.5 679.5 0.0 66.3 NO 680.5 0.0 164.9 NO 681.5 0.0 270.8 NO 682.0 0.0 314.2 NO CLEN10397 A2 ZCO12250 Cleanout 678.6 687.3 8.7 679.7 0.0 11.8 NO 680.6 0.0 22.1 NO 682.1 0.0 33.3 NO 682.7 0.0 35.8 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 34 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10398 A2 ZCO10914 Cleanout 681.2 689.6 8.4 682.8 0.0 63.2 NO 683.9 0.0 156.7 NO 685.1 0.0 259.1 NO 685.9 0.0 297.0 NO CLEN10399 A2 ZCO10915 Cleanout 686.4 694.6 8.2 687.8 1.0 63.2 NO 688.8 1.6 156.7 NO 689.7 2.4 263.6 NO 690.1 2.8 297.2 NO CLEN10400 A2 ZCO10916 Cleanout 690.4 698.9 8.5 691.9 13.9 63.0 NO 692.9 23.1 156.2 NO 693.9 35.1 270.6 NO 694.2 40.0 297.7 NO CBIN10595 A2 CI10627 Curb Inlet 678.8 686.0 7.1 679.5 0.0 0.1 NO 680.5 0.0 0.1 NO 681.5 0.0 0.1 NO 682.0 0.0 0.1 NO CLEN10401 A2 ZCO13065 Cleanout 694.7 701.6 6.9 695.9 0.0 60.1 NO 696.7 0.0 149.3 NO 697.6 0.0 285.6 NO 697.7 0.0 322.2 NO CLEN10402 A2 ZCO13066 Cleanout 695.5 704.1 8.6 697.5 0.0 57.3 NO 698.9 0.0 142.5 NO 700.8 0.0 234.9 NO 704.2 0.0 270.9 NO CLEN10403 A2 ZCO11824 Cleanout 696.9 711.4 14.5 698.8 2.7 57.2 NO 700.2 4.3 142.5 NO 704.6 6.3 234.3 NO 711.4 7.2 270.9 NO INLT10243 A2 ZINL018 Inlet 706.2 710.2 4.0 707.1 12.6 56.8 NO 707.6 24.3 141.4 NO 707.9 38.1 232.6 NO 708.1 44.2 268.3 NO CBIN10596 A2 CI0642 Curb Inlet 697.5 702.2 4.7 698.1 4.8 4.8 NO 698.3 7.7 7.7 NO 698.5 11.6 11.6 NO 698.6 13.2 13.2 NO OTHR10314 A2 ZOTHER10837Other 695.0 702.8 7.8 696.9 7.3 59.2 NO 698.3 12.2 147.1 NO 699.8 18.7 247.6 NO 702.8 21.4 281.1 NO CBIN10597 A2 CI10628 Curb Inlet 697.1 702.0 5.0 697.1 0.0 0.0 NO 698.3 0.0 0.0 NO 699.8 0.0 0.0 NO 702.1 0.0 2.4 NO CBIN10598 A2 CI0256 Curb Inlet 661.2 665.3 4.1 662.3 4.3 25.9 NO 662.8 6.8 47.9 NO 662.8 9.8 61.7 NO 662.9 11.0 68.3 NO INLT10244 A2 ZINL10080 Inlet 775.0 784.6 9.6 775.5 7.1 7.1 NO 775.8 15.2 15.2 NO 776.0 24.7 24.7 NO 776.1 28.8 28.8 NO INLT10245 A2 ZINL10081 Inlet 766.5 775.6 9.1 767.6 33.0 39.3 NO 768.1 65.5 78.1 NO 768.6 102.9 122.1 NO 768.9 119.8 142.5 NO CBIN10599 A2 CI1010 Curb Inlet 757.2 770.8 13.5 758.3 12.9 46.0 NO 758.7 22.0 88.5 NO 759.1 33.2 136.1 NO 759.3 37.8 158.9 NO OTHR10315 A2 ZOTHER10841Other 755.0 769.3 14.3 756.0 0.0 46.0 NO 756.4 0.0 88.6 NO 756.8 0.0 136.2 NO 757.0 0.0 159.0 NO CBIN10600 A2 CI0641 Curb Inlet 765.2 769.5 4.3 765.2 0.0 0.0 NO 765.2 0.0 0.0 NO 765.2 0.0 0.0 NO 765.2 0.0 0.0 NO CLEN10404 A2 ZCO10919 Cleanout 751.5 769.1 17.5 753.0 3.6 65.9 NO 753.7 6.8 129.2 NO 754.5 10.7 202.1 NO 754.9 12.3 232.8 NO OTHR10316 A2 ZOTHER10842Other 751.1 768.5 17.4 752.6 0.0 66.0 NO 753.3 0.0 129.4 NO 754.1 0.0 202.2 NO 754.5 0.0 232.7 NO CBIN10601 A2 CI1011 Curb Inlet 761.1 768.5 7.5 761.1 0.0 0.0 NO 761.1 0.0 0.0 NO 761.1 0.0 0.0 NO 761.1 0.0 0.0 NO INLT10246 A2 INL11098 Inlet 761.8 769.2 7.4 762.4 18.4 18.4 NO 762.7 36.6 36.6 NO 762.9 58.1 58.1 NO 763.0 67.4 67.4 NO INLT10247 A2 ZINL12253 Inlet 757.8 764.6 6.8 757.8 0.0 0.0 NO 757.8 0.0 0.0 NO 757.8 0.0 0.0 NO 757.8 0.0 0.0 NO OTHR10317 A2 ZOTHER10843Other 747.2 764.1 16.9 748.7 1.1 67.3 NO 749.4 1.9 131.8 NO 750.2 2.7 206.0 NO 750.8 3.1 236.7 NO INLT10248 A2 ZINL10082 Inlet 753.0 760.2 7.2 753.0 0.0 0.0 NO 753.0 0.0 0.0 NO 753.0 0.0 0.0 NO 753.0 0.0 0.0 NO INLT10249 A2 ZINL10083 Inlet 750.3 758.0 7.7 750.5 1.9 1.9 NO 750.6 3.3 3.3 NO 750.7 5.0 5.0 NO 750.7 5.7 5.7 NO CBIN10602 A2 CI1012 Curb Inlet 746.3 757.8 11.5 746.6 0.0 1.9 NO 746.7 0.0 3.3 NO 746.8 0.0 5.0 NO 746.8 0.0 5.7 NO CLEN10405 A2 ZCO11825 Cleanout 742.7 758.2 15.4 743.9 0.0 69.3 NO 744.4 0.0 135.3 NO 744.9 0.0 211.2 NO 745.1 0.0 240.0 NO INLT10250 A2 ZINL10084 Inlet 741.6 754.9 13.3 741.6 0.0 0.0 NO 741.6 0.0 0.0 NO 741.6 0.0 0.0 NO 741.6 0.0 0.0 NO CBIN10603 A2 CI1013 Curb Inlet 734.0 746.5 12.5 734.0 0.0 0.0 NO 734.0 0.0 0.0 NO 734.5 0.0 15.8 NO 734.6 0.0 21.5 NO CLEN10406 A2 ZCO10920 Cleanout 725.6 746.4 20.8 727.7 5.0 74.0 NO 728.9 9.7 144.5 NO 746.4 15.2 226.6 NO 746.4 17.5 270.9 NO CLEN10407 A2 ZCO10921 Cleanout 722.4 731.6 9.3 724.4 0.0 81.1 NO 725.4 0.0 157.7 NO 726.8 0.0 247.4 NO 727.1 0.0 272.7 NO CBIN10604 A2 CI1014 Curb Inlet 727.8 731.8 4.0 728.2 7.6 7.6 NO 728.4 14.4 14.4 NO 728.5 22.6 22.6 NO 728.6 26.1 26.1 NO OTLT10062 A2 OUT006 Outlet 720.7 725.0 4.3 722.5 0.0 81.0 NO 722.9 0.0 157.6 NO 723.2 0.0 249.0 NO 723.2 0.0 281.3 NO OTLT10063 A2 ZOUT10063 Outlet 682.6 690.8 8.2 688.5 11.4 338.3 NO 689.5 18.9 677.2 NO 690.4 27.9 1096.9 NO 691.0 31.7 1431.0 NO OTHR10318 A2 ZOTHER10850Other 688.6 699.8 11.3 691.6 7.6 361.9 NO 693.2 13.7 679.1 NO 695.2 20.7 1091.1 NO 700.0 23.5 1520.2 NO OTLT10064 A2 ZOUT10064 Outlet 698.7 702.7 4.0 702.7 0.0 18.1 NO 703.9 0.0 25.2 YES 705.5 0.0 31.7 YES 706.2 0.0 34.7 YES INLT10251 A2 ZINL10934 Inlet 628.7 632.7 4.0 632.0 2.5 264.0 NO 633.1 3.8 563.3 NO 633.0 5.4 557.2 NO 633.0 6.1 580.8 NO OTLT10065 A2 OUT10331 Outlet 675.0 679.0 4.0 675.0 0.0 0.0 NO 675.0 0.0 0.0 NO 675.0 0.0 0.0 NO 675.0 0.0 0.0 NO INLT10252 A2 INL024 Inlet 634.9 643.1 8.2 636.6 19.8 57.0 NO 637.7 34.7 90.3 NO 645.5 53.0 113.7 YES 648.3 60.5 119.2 YES CLEN10408 A2 ZCO10943 Cleanout 634.3 642.7 8.4 636.1 0.0 57.0 NO 637.4 0.0 90.1 NO 645.2 0.0 144.1 YES 648.0 0.0 127.8 YES CLEN10409 A2 ZCO10944 Cleanout 621.9 629.2 7.4 626.4 10.6 88.0 NO 629.4 16.9 136.0 NO 631.0 24.9 166.9 YES 632.3 28.1 183.7 YES INLT10253 A2 OUT10255 Inlet 687.6 691.6 4.0 688.9 2.1 60.0 NO 689.5 3.6 115.7 NO 689.8 5.4 161.1 NO 689.9 6.1 169.7 NO OTHR10319 A2 ZOTHER11259Other 639.6 643.6 4.0 640.2 9.2 9.2 NO 640.4 16.3 16.3 NO 640.5 24.8 24.8 NO 640.6 28.3 28.3 NO OTHR10320 A2 ZOTHER11260Other 669.3 673.3 4.0 669.3 0.0 0.0 NO 669.3 0.0 0.0 NO 669.3 0.0 0.0 NO 669.3 0.0 0.0 NO OTHR10321 A2 ZOTHER11267Other 712.2 716.2 4.0 712.2 0.0 0.0 NO 712.2 0.0 0.0 NO 712.2 0.0 0.0 NO 712.2 0.0 0.0 NO OTHR10322 A2 ZOTHER11268Other 647.2 651.2 4.0 647.2 0.0 0.0 NO 647.2 0.0 0.0 NO 647.2 0.0 0.0 NO 648.5 0.0 3.2 NO OTHR10323 A2 ZOTHER11269Other 647.2 651.2 4.0 647.6 7.5 7.5 NO 647.8 13.2 13.2 NO 647.9 19.9 19.9 NO 647.9 22.7 22.7 NO OTHR10324 A2 ZOTHER11287Other 708.1 712.1 4.0 708.3 1.5 4.1 NO 708.3 2.6 6.2 NO 712.1 3.9 23.6 NO 712.3 4.5 34.4 NO OTHR10325 A2 ZOTHER11288Other 698.3 702.3 4.0 702.7 0.0 21.4 NO 703.9 0.0 18.6 YES 705.5 0.0 22.5 YES 706.2 0.0 24.1 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 35 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10326 A2 ZOTHER11289Other 748.5 752.5 4.0 748.5 0.0 0.0 NO 748.5 0.0 0.0 NO 748.5 0.0 0.0 NO 748.5 0.0 0.0 NO OTHR10327 A2 ZOTHER11304Other 738.0 742.0 4.0 738.0 0.0 0.0 NO 738.0 0.0 0.0 NO 738.0 0.0 0.0 NO 738.0 0.0 0.0 NO OTHR10328 A2 ZOTHER11305Other 813.3 817.3 4.0 813.3 0.0 0.0 NO 813.3 0.0 0.0 NO 813.3 0.0 0.0 NO 813.3 0.0 0.0 NO OTHR10329 A2 ZOTHER11306Other 782.1 786.1 4.0 782.1 0.0 0.0 NO 782.1 0.0 0.0 NO 782.1 0.0 0.0 NO 782.1 0.0 0.0 NO OTHR10330 A2 ZOTHER11307Other 748.7 752.7 4.0 748.7 0.0 0.0 NO 748.7 0.0 0.0 NO 748.7 0.0 0.0 NO 748.7 0.0 0.0 NO OTHR10331 A2 ZOTHER11308Other 661.8 665.8 4.0 661.9 0.4 0.4 NO 662.1 0.6 0.6 NO 662.1 0.9 0.9 NO 662.1 1.0 1.0 NO OTHR10332 A2 ZOTHER11309Other 639.5 643.5 4.0 639.5 0.0 0.0 NO 640.5 0.0 3.6 NO 641.5 0.0 11.2 NO 641.0 0.0 10.2 NO OTHR10333 A2 ZOTHER11320Other 707.7 711.7 4.0 707.7 0.0 0.0 NO 707.7 0.0 0.0 NO 707.7 0.0 0.0 NO 707.7 0.0 0.0 NO INLT10254 A2 ZINL11896 Inlet 725.6 732.4 6.8 725.6 0.0 0.0 NO 725.6 0.0 0.0 NO 725.6 0.0 0.0 NO 725.6 0.0 0.0 NO INLT10255 A2 ZINL11877 Inlet 726.4 730.4 4.0 726.8 1.6 1.6 NO 727.0 3.1 3.1 NO 727.1 4.8 4.8 NO 727.2 5.5 5.5 NO INLT10256 A2 ZINL13110 Inlet 580.5 587.5 6.9 581.3 0.0 12.9 NO 581.5 0.0 20.4 NO 581.7 0.0 29.9 NO 581.8 0.0 33.7 NO OTLT10066 A2 ZOUT10380 Outlet 773.1 777.1 4.0 774.1 0.0 30.8 NO 774.4 0.0 54.0 NO 774.6 0.0 77.5 NO 774.7 0.0 86.6 NO INLT10257 A2 ZINL13114 Inlet 773.8 777.8 4.0 778.9 2.3 31.5 YES 786.9 4.3 56.7 YES 799.3 6.9 79.7 YES 805.3 7.9 88.8 YES OTHR10334 A2 ZOTHER11347Other 672.1 679.1 7.0 674.4 2.8 115.5 NO 675.1 4.5 177.8 NO 677.6 6.6 253.9 NO 680.1 7.6 251.9 YES OTHR10335 A2 ZOTHER11730Other 672.1 679.1 7.0 674.4 0.0 115.5 NO 675.0 0.0 177.7 NO 677.7 0.0 244.8 NO 680.1 0.0 247.8 YES INLT10258 A2 INL039 Inlet 672.6 676.6 4.0 674.7 0.0 113.0 NO 675.4 0.0 173.7 NO 677.7 0.0 283.4 YES 680.2 0.0 284.5 YES CBIN10605 A2 CI1302 Curb Inlet 578.1 582.9 4.8 578.9 1.3 5.7 NO 579.2 2.1 10.2 NO 579.5 3.2 15.7 NO 579.6 3.6 18.0 NO CBIN10606 A2 CI1304 Curb Inlet 578.5 583.0 4.5 579.2 4.5 4.5 NO 579.5 8.1 8.1 NO 579.7 12.6 12.6 NO 579.8 14.4 14.4 NO OTHR10336 A2 ZOTHER11358Other 645.5 650.7 5.2 648.6 3.2 229.9 NO 649.8 5.1 370.2 NO 652.2 7.4 464.8 YES 652.7 8.3 468.0 YES INLT10259 A2 INL040 Inlet 651.5 655.5 4.0 651.5 0.0 0.0 NO 651.5 0.0 0.0 NO 652.2 0.0 0.4 NO 652.8 0.0 0.6 NO CBIN10607 A2 CI0766 Curb Inlet 616.0 623.9 7.9 619.3 0.0 3.0 NO 620.4 0.0 4.7 NO 622.8 0.0 6.2 NO 623.4 0.0 7.0 NO INLT10260 A2 INL10115 Inlet 698.2 702.2 4.0 698.3 0.7 0.7 NO 698.4 1.7 1.7 NO 698.4 2.7 2.7 NO 698.5 3.2 3.2 NO OTLT10067 A2 OUT079 Outlet 668.6 672.6 4.0 668.6 0.0 0.7 NO 668.6 0.0 1.7 NO 668.6 0.0 2.7 NO 668.6 0.0 3.1 NO OTHR10337 A2 ZOTHER11359Other 649.7 668.1 18.4 651.4 1.4 115.4 NO 652.1 2.4 240.4 NO 652.8 3.5 385.7 NO 653.2 3.9 453.2 NO INLT10261 A2 INL042 Inlet 657.9 662.5 4.6 658.6 13.5 13.5 NO 659.0 28.4 28.4 NO 659.4 46.7 46.7 NO 659.5 54.0 54.0 NO CBIN10608 A2 CI1707 Curb Inlet 717.5 726.0 8.5 718.6 3.9 11.4 NO 726.0 6.3 22.1 NO 727.0 9.4 34.5 NO 728.0 10.6 39.7 YES CBIN10609 A2 CI0804 Curb Inlet 618.9 623.7 4.8 619.1 0.0 0.0 NO 619.3 0.0 0.0 NO 619.6 0.0 0.1 NO 623.7 0.0 3.1 NO CBIN10610 A2 CI0805 Curb Inlet 618.8 623.7 4.9 619.1 0.0 0.0 NO 619.3 0.0 0.0 NO 619.6 0.0 0.1 NO 623.7 0.0 1.7 NO OTHR10338 A2 ZOTHER11369Other 628.8 634.4 5.7 629.7 0.0 17.3 NO 630.1 0.0 30.7 NO 634.4 0.0 46.6 NO 634.7 0.0 57.2 NO OTHR10339 A2 ZOTHER11370Other 629.5 634.5 5.0 630.4 0.0 17.3 NO 630.8 0.0 30.7 NO 634.5 0.0 47.3 NO 634.6 0.0 52.1 NO CBIN10611 A2 CI1032 Curb Inlet 670.0 674.6 4.6 674.6 0.0 0.4 NO 675.1 0.0 8.0 NO 675.6 0.0 12.7 YES 675.5 0.0 9.4 NO OTHR10340 A2 ZOTHER11371Other 668.1 674.6 6.5 674.6 0.0 265.9 NO 675.0 0.0 387.9 NO 675.4 0.0 442.2 NO 675.3 0.0 445.2 NO CBIN10612 A2 CI1034 Curb Inlet 670.9 676.6 5.7 676.9 0.0 10.5 NO 677.6 0.0 12.1 NO 679.5 0.0 11.6 YES 680.5 0.0 11.8 YES OTHR10341 A2 ZOTHER11372Other 669.2 675.2 6.0 675.3 6.0 265.7 NO 675.9 9.6 332.7 NO 676.7 14.2 416.6 YES 677.4 16.1 441.8 YES OTHR10342 A2 ZOTHER11373Other 670.7 676.7 6.0 676.8 6.3 247.0 NO 677.6 10.4 331.0 NO 679.5 15.9 412.0 YES 680.5 18.1 437.5 YES CLEN10410 A2 ZCO10117 Cleanout 618.5 623.7 5.2 619.1 5.0 5.0 NO 619.3 8.4 8.4 NO 619.6 12.9 12.9 NO 623.7 14.7 17.4 NO CLEN10411 A2 ZCO12174 Cleanout 615.3 623.4 8.1 616.6 2.1 28.1 NO 617.1 3.2 45.9 NO 617.9 4.7 67.6 NO 623.4 5.3 78.0 NO CLEN10412 A2 ZCO12175 Cleanout 617.2 622.6 5.4 617.9 0.0 4.9 NO 618.1 0.0 8.4 NO 618.6 0.0 12.7 NO 622.7 0.0 16.4 NO OTLT10068 A2 ZOUT10345 Outlet 715.8 719.8 4.0 716.4 1.5 1.5 NO 716.7 3.3 3.3 NO 716.9 5.2 5.2 NO 717.0 6.0 6.0 NO INLT10262 A2 ZINL11445 Inlet 733.0 737.0 4.0 733.4 0.0 3.2 NO 733.5 0.0 6.4 NO 733.6 0.0 10.2 NO 733.6 0.0 11.7 NO INLT10263 A2 ZINL10118 Inlet 628.7 632.7 4.0 632.7 5.9 135.4 NO 635.6 9.1 520.3 YES 635.6 13.1 546.8 YES 636.1 14.7 576.9 YES CBIN10613 A2 CI0972 Curb Inlet 630.3 634.3 4.0 630.3 0.0 0.0 NO 634.3 0.0 4.1 NO 634.3 0.0 4.6 NO 634.5 0.0 4.5 NO OTHR10343 A2 ZOTHER11381Other 627.2 634.5 7.3 629.9 0.0 137.2 NO 634.0 0.0 487.9 NO 634.1 0.0 492.0 NO 634.5 0.0 518.2 NO OTHR10344 A2 ZOTHER11382Other 628.5 635.7 7.3 632.7 0.0 137.3 NO 635.5 0.0 487.9 NO 635.5 0.0 492.0 NO 635.8 0.0 518.2 NO CBIN10614 A2 CI1466 Curb Inlet 661.6 666.5 4.9 662.6 3.4 31.4 NO 662.9 6.5 52.9 NO 663.2 10.0 79.0 NO 663.3 11.5 90.0 NO CBIN10615 A2 CI0540 Curb Inlet 670.9 675.1 4.2 671.7 3.8 28.5 NO 672.1 6.7 49.5 NO 672.4 10.2 69.9 NO 672.6 11.7 79.2 NO OTHR10345 A2 ZOTHER11403Other 662.5 677.2 14.7 665.1 1.1 478.4 NO 666.3 1.7 942.1 NO 667.9 2.5 1540.7 NO 677.3 2.8 1985.7 NO OTHR10346 A2 ZOTHER11404Other 660.9 675.9 15.0 663.8 6.1 480.2 NO 665.1 10.5 945.0 NO 666.8 16.3 1546.4 NO 676.0 18.5 1996.0 NO INLT10264 A2 INL020 Inlet 672.3 676.3 4.0 674.7 43.7 413.3 NO 675.8 80.8 838.3 NO 677.0 125.1 1371.3 NO 678.4 146.2 1612.7 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 36 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10347 A2 ZOTHER11405Other 668.7 674.3 5.6 669.7 0.0 28.5 NO 670.0 0.0 47.5 NO 670.2 0.0 69.9 NO 670.4 0.0 79.2 NO OTHR10348 A2 ZOTHER11406Other 618.4 632.3 13.9 623.0 0.0 939.2 NO 625.3 0.0 1693.7 NO 632.3 0.0 2345.0 NO 632.3 0.0 2691.6 NO CBIN10616 A2 CI0324 Curb Inlet 668.6 672.6 4.0 672.6 7.2 31.6 NO 674.1 13.8 56.5 YES 679.2 21.9 86.6 YES 682.4 25.2 101.0 YES CBIN10617 A2 CI0323 Curb Inlet 668.8 672.8 4.0 672.8 26.6 26.6 NO 677.7 47.9 47.9 YES 687.7 74.5 74.5 YES 693.9 87.2 87.2 YES OTHR10349 A2 ZOTHER11422Other 615.7 623.1 7.4 619.3 0.0 61.2 NO 620.4 0.0 96.5 NO 623.1 0.0 125.0 NO 623.1 0.0 141.6 NO OTLT10069 A2 OUT080 Outlet 664.9 668.9 4.0 666.1 6.1 21.3 NO 666.7 12.7 43.4 NO 667.1 20.1 66.8 NO 667.4 23.2 78.9 NO CBIN10618 A2 CI0800 Curb Inlet 694.5 703.8 9.3 695.3 0.0 5.3 NO 695.6 0.0 9.6 NO 696.4 0.0 14.5 NO 703.8 0.0 18.4 NO CLEN10413 A2 ZCO11836 Cleanout 693.5 699.8 6.3 694.4 0.0 6.2 NO 694.8 0.0 11.2 NO 697.9 0.0 16.3 NO 699.8 0.0 22.3 NO INLT10265 A2 ZINL12300 Inlet 717.3 721.8 4.5 717.3 0.0 0.0 NO 717.3 0.0 0.0 NO 717.3 0.0 0.0 NO 717.3 0.0 0.0 NO CBIN10619 A2 CI1185 Curb Inlet 656.9 660.9 4.0 657.4 1.8 1.8 NO 657.6 3.0 3.0 NO 658.3 4.5 4.5 NO 660.9 5.1 5.5 NO INLT10266 A2 INL11103 Inlet 657.2 661.2 4.0 657.4 0.0 0.0 NO 657.6 0.0 0.0 NO 658.3 0.0 0.2 NO 661.2 0.0 2.0 NO CBIN10620 A2 CI1187 Curb Inlet 665.0 671.4 6.4 666.3 5.5 15.8 NO 667.0 12.5 30.3 NO 671.4 20.6 47.1 NO 668.5 24.1 56.3 NO CBIN10621 A2 CI1480 Curb Inlet 625.6 631.6 6.0 626.4 5.1 5.1 NO 631.9 8.1 15.2 NO 632.0 12.0 12.0 NO 632.0 13.5 13.5 NO OTHR10350 A2 ZOTHER11431Other 741.1 745.1 4.0 741.1 0.0 0.0 NO 741.1 0.0 0.0 NO 741.1 0.0 0.0 NO 741.1 0.0 0.0 NO OTHR10351 A2 ZOTHER11432Other 674.3 678.3 4.0 674.3 0.0 0.0 NO 674.3 0.0 0.0 NO 674.3 0.0 0.0 NO 674.3 0.0 0.0 NO OTHR10352 A2 ZOTHER11449Other 720.2 724.2 4.0 722.4 2.2 7.4 NO 723.8 3.7 13.3 NO 724.6 5.5 16.4 NO 725.3 6.3 16.7 YES OTHR10353 A2 ZOTHER11450Other 679.8 683.8 4.0 682.9 1.5 138.8 NO 683.7 2.7 227.3 NO 684.2 4.0 300.6 NO 684.3 4.6 327.2 NO OTHR10354 A2 ZOTHER11518Other 630.7 634.7 4.0 634.1 5.9 264.1 NO 635.0 9.2 429.3 NO 635.6 13.3 555.7 NO 635.7 15.0 580.3 NO OTHR10355 A2 ZOTHER11519Other 634.9 638.9 4.0 639.4 0.0 281.1 NO 640.3 0.0 448.2 YES 640.9 0.0 554.5 YES 641.0 0.0 573.4 YES OTHR10356 A2 ZOTHER11520Other 661.8 665.8 4.0 662.6 9.9 13.3 NO 664.3 16.3 21.4 NO 665.2 24.4 24.4 NO 665.7 27.7 27.7 NO OTHR10357 A2 ZOTHER11521Other 665.8 669.8 4.0 666.7 2.4 14.0 NO 667.0 3.9 22.7 NO 667.2 5.8 33.8 NO 667.3 6.7 38.5 NO OTHR10358 A2 ZOTHER11553Other 656.7 660.7 4.0 659.8 1.8 316.9 NO 661.4 3.0 866.3 NO 661.6 4.5 868.6 NO 661.7 5.1 871.8 NO OTHR10359 A2 ZOTHER11554Other 667.1 671.1 4.0 671.0 1.1 298.6 NO 671.8 1.7 516.6 NO 672.3 2.6 629.8 YES 672.5 2.9 657.7 YES OTHR10360 A2 ZOTHER11556Other 666.6 670.6 4.0 670.1 1.8 288.4 NO 671.0 3.0 489.6 NO 671.8 4.4 659.6 YES 672.0 5.0 696.5 YES OTHR10361 A2 ZOTHER11557Other 680.0 684.0 4.0 682.0 0.9 113.4 NO 682.4 1.5 174.0 NO 682.6 2.3 211.4 NO 682.7 2.6 222.9 NO OTHR10362 A2 ZOTHER11559Other 693.6 697.6 4.0 694.4 0.0 91.4 NO 694.5 0.0 130.7 NO 694.6 0.0 173.6 NO 694.6 0.0 191.0 NO OTHR10363 A2 ZOTHER11567Other 744.4 748.4 4.0 745.1 0.0 10.5 NO 745.4 0.0 18.6 NO 745.5 0.0 28.5 NO 745.6 0.0 32.2 NO OTHR10364 A2 ZOTHER11570Other 726.4 730.4 4.0 726.4 0.0 0.0 NO 726.4 0.0 0.0 NO 726.4 0.0 0.0 NO 726.4 0.0 0.0 NO OTHR10365 A2 ZOTHER11573Other 744.9 748.9 4.0 744.9 0.0 0.0 NO 744.9 0.0 0.0 NO 744.9 0.0 0.0 NO 744.9 0.0 0.0 NO OTHR10366 A2 ZOTHER11575Other 745.1 749.1 4.0 745.1 0.0 0.0 NO 745.1 0.0 0.0 NO 745.1 0.0 0.0 NO 745.1 0.0 0.0 NO OTHR10367 A2 ZOTHER11576Other 745.1 749.1 4.0 745.7 1.4 1.4 NO 745.9 3.1 3.1 NO 747.0 4.9 5.4 NO 749.4 5.7 12.0 NO OTHR10368 A2 ZOTHER11589Other 768.2 772.2 4.0 768.2 0.0 0.0 NO 768.2 0.0 0.0 NO 768.2 0.0 0.0 NO 768.2 0.0 0.0 NO OTHR10369 A2 ZOTHER11590Other 723.8 727.8 4.0 724.2 2.0 2.5 NO 724.4 4.0 5.9 NO 724.5 6.4 9.4 NO 724.5 7.3 10.9 NO OTHR10370 A2 ZOTHER11595Other 637.6 641.6 4.0 638.5 7.1 16.2 NO 638.7 12.8 28.9 NO 638.9 19.9 44.6 NO 639.0 22.9 51.0 NO CBIN10622 A2 ZCI10805 Curb Inlet 615.2 630.2 15.0 620.9 0.0 3.5 NO 621.4 0.0 5.4 NO 623.2 0.0 7.8 NO 624.4 0.0 8.7 NO INLT10267 A2 ZINL043 Inlet 672.4 676.4 4.0 672.4 0.0 0.0 NO 672.4 0.0 0.0 NO 672.4 0.0 0.0 NO 672.4 0.0 0.0 NO INLT10268 A2 INL13255 Inlet 645.2 651.2 6.0 645.2 0.0 0.0 NO 645.2 0.0 0.0 NO 645.2 0.0 0.0 NO 645.2 0.0 0.0 NO INLT10269 A2 INL13256 Inlet 642.7 648.7 6.0 642.7 0.0 0.0 NO 642.7 0.0 0.0 NO 642.7 0.0 0.0 NO 642.7 0.0 0.0 NO INLT10270 A2 INL13270 Inlet 666.5 672.5 6.0 666.6 0.0 0.0 NO 666.6 0.0 0.0 NO 666.6 0.0 0.0 NO 666.6 0.0 0.0 NO INLT10271 A2 INL13271 Inlet 658.0 664.0 6.0 658.4 1.7 1.7 NO 658.5 3.3 3.3 NO 658.7 5.3 5.3 NO 658.7 6.1 6.1 NO INLT10272 A2 INL13274 Inlet 675.2 682.5 7.2 675.6 2.3 2.3 NO 675.7 4.1 4.1 NO 675.8 6.3 6.3 NO 675.9 7.3 7.3 NO INLT10273 A2 INL13275 Inlet 675.9 681.9 6.0 675.9 0.0 0.0 NO 675.9 0.0 0.0 NO 675.9 0.0 0.0 NO 675.9 0.0 0.0 NO OTHR10371 A2 ZOTHER11735Other 667.2 671.2 4.0 671.3 0.0 311.9 NO 672.1 0.0 522.1 NO 672.6 0.0 572.8 YES 672.7 0.0 582.8 YES OTHR10372 A2 ZOTHER11747Other 689.9 693.9 4.0 696.3 0.0 33.6 YES 706.1 0.0 45.2 YES 721.7 0.0 63.3 YES 729.2 0.0 70.6 YES INLT10274 A2 ZINL13312 Inlet 622.7 629.9 7.2 623.2 0.0 6.6 NO 630.2 0.0 28.1 NO 630.5 0.0 35.1 NO 630.6 0.0 35.1 NO OTHR10373 A2 ZOTHER11749Other 620.5 633.2 12.7 622.9 0.0 275.2 NO 633.8 0.0 576.4 NO 633.7 0.0 579.6 NO 633.7 0.0 605.0 NO OTHR10374 A2 ZOTHER11750Other 624.9 630.9 6.0 625.4 1.5 6.6 NO 631.2 2.4 23.7 NO 631.2 3.4 26.6 NO 631.2 3.8 27.5 NO OTHR10375 A2 ZOTHER11751Other 601.2 605.2 4.0 601.6 0.0 4.3 NO 601.7 0.0 6.4 NO 601.7 0.0 8.6 NO 601.7 0.0 9.5 NO OTHR10376 A2 ZOTHER11752Other 601.4 605.4 4.0 602.6 0.0 4.6 NO 603.0 0.0 6.9 NO 603.4 0.0 9.2 NO 603.6 0.0 10.3 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 37 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10377 A2 ZOTHER11753Other 602.1 606.1 4.0 602.8 0.0 5.6 NO 603.0 0.0 9.1 NO 603.4 0.0 13.7 NO 603.6 0.0 15.4 NO OTHR10378 A2 ZOTHER11754Other 602.2 606.2 4.0 603.6 5.6 5.6 NO 604.3 9.1 9.1 NO 605.6 13.7 13.7 NO 606.2 15.5 15.5 NO INLT10275 A2 INL13316 Inlet 586.8 591.4 4.6 588.0 9.9 9.9 NO 588.3 16.5 16.5 NO 589.0 24.9 24.9 NO 589.1 28.4 28.4 NO CLEN10414 A2 CO14024 Cleanout 586.8 593.4 6.6 587.9 0.1 9.9 NO 588.3 0.2 16.0 NO 589.0 0.3 22.8 NO 589.1 0.4 26.7 NO CBIN10623 A2 CI10840 Curb Inlet 621.6 625.6 4.0 621.6 0.0 0.0 NO 621.6 0.0 0.0 NO 621.6 0.0 0.0 NO 621.6 0.0 0.0 NO INLT10276 A2 INL13317 Inlet 650.2 656.2 6.0 650.2 0.0 0.0 NO 650.2 0.0 0.0 NO 650.2 0.0 0.0 NO 650.2 0.0 0.0 NO CBIN10624 A2 CI10163 Curb Inlet 604.4 611.6 7.1 605.0 0.0 0.0 NO 605.6 0.0 0.0 NO 606.7 0.0 0.1 NO 607.8 0.0 0.1 NO CBIN10625 A2 CI10164 Curb Inlet 638.4 646.4 8.0 639.0 2.5 9.7 NO 639.1 4.6 18.1 NO 639.3 7.4 29.7 NO 639.4 8.4 33.8 NO CBIN10626 A2 CI10667 Curb Inlet 639.6 647.6 8.0 640.2 7.2 7.2 NO 640.4 13.6 13.6 NO 640.7 22.4 22.4 NO 640.7 25.4 25.4 NO CBIN10627 A2 CI10198 Curb Inlet 642.0 647.2 5.3 642.0 0.0 0.0 NO 642.0 0.0 0.0 NO 642.0 0.0 0.0 NO 642.0 0.0 0.0 NO CBIN10628 A2 CI10199 Curb Inlet 643.4 647.5 4.1 643.4 0.0 0.0 NO 643.4 0.0 0.0 NO 643.4 0.0 0.0 NO 643.4 0.0 0.0 NO CBIN10629 A2 CI1712 Curb Inlet 611.1 618.0 6.9 612.1 4.4 14.2 NO 612.4 7.0 21.9 NO 618.0 10.3 48.7 NO 618.0 11.6 51.9 NO CLEN10415 A2 ZCO10502 Cleanout 689.8 696.1 6.3 691.0 0.0 28.7 NO 691.5 0.0 49.5 NO 696.1 0.0 71.1 NO 696.1 0.0 76.6 NO CBIN10630 A2 CI0405 Curb Inlet 684.2 689.9 5.7 685.2 7.0 35.2 NO 685.5 11.3 59.8 NO 685.8 16.9 86.0 NO 685.9 19.1 91.5 NO OTLT10070 A2 Outlet 698.2 702.2 4.0 701.8 2.0 15.0 NO 702.6 3.9 18.3 NO 703.7 5.9 21.9 YES 704.2 6.8 23.1 YES OTHR10379 A2 Other 698.0 702.2 4.3 701.7 0.0 14.3 NO 702.6 0.0 16.8 NO 703.7 0.0 19.5 YES 704.2 0.0 20.5 YES OTLT10071 A2 Outlet 697.7 701.7 4.0 700.0 0.0 14.2 NO 700.2 0.0 16.5 NO 700.5 0.0 19.2 NO 700.8 0.0 20.2 NO OTHR10380 A2 Other 697.1 701.1 4.0 699.4 0.0 14.2 NO 699.8 0.0 16.4 NO 700.3 0.0 19.0 NO 700.7 0.0 20.0 NO OTLT10072 A2 Outlet 696.9 700.9 4.0 698.4 22.4 32.7 NO 698.8 37.7 49.1 NO 699.2 58.1 68.8 NO 699.8 65.8 76.3 NO OTLT10073 A2 ZOUT10265 Outlet 668.0 672.0 4.0 669.7 3.9 55.0 NO 669.9 7.0 78.7 NO 670.1 11.4 106.3 NO 670.2 13.0 119.2 NO OTLT10074 A2 OUT10256 Outlet 617.9 627.7 9.8 620.4 2.9 163.8 NO 621.8 4.7 286.9 NO 623.3 6.8 492.5 NO 623.4 7.7 555.0 NO OTLT10075 A2 OUT001 Outlet 608.4 618.1 9.8 615.6 2.1 177.6 NO 616.0 3.2 310.4 NO 617.4 4.7 522.0 NO 617.8 5.3 615.4 NO INLT10277 A2 ZINL10061 Detention Basin 607.8 614.1 6.3 615.1 13.0 218.6 YES 615.3 22.2 339.8 YES 615.6 33.9 567.3 YES 615.6 38.5 633.9 YES CBIN10631 A2 CI0945 Curb Inlet 621.9 629.9 8.0 623.2 1.4 16.6 NO 623.7 2.4 28.4 NO 624.2 3.7 42.5 NO 624.4 4.3 48.4 NO CLEN10416 A2 ZCO12496 Cleanout 628.6 635.7 7.1 630.9 2.0 45.6 NO 631.5 3.4 71.5 NO 635.7 5.2 120.9 NO 635.8 5.9 127.0 NO CLEN10417 A2 ZCO12497 Cleanout 627.6 642.7 15.1 629.7 6.6 117.6 NO 630.6 10.9 221.2 NO 631.7 16.3 380.3 NO 632.2 18.6 438.7 NO CBIN10632 A2 CI0811 Curb Inlet 586.5 593.7 7.2 587.3 11.9 11.9 NO 587.6 18.8 18.8 NO 587.9 27.3 27.3 NO 588.1 30.8 30.8 NO CBIN10633 A2 CI1601 Curb Inlet 583.7 593.7 10.0 584.9 0.0 11.8 NO 585.4 0.0 18.8 NO 585.9 0.0 27.4 NO 586.0 0.0 30.8 NO CBIN10634 A2 CI10282 Curb Inlet 650.7 655.2 4.6 652.0 5.0 5.0 NO 655.2 8.4 8.4 NO 661.7 12.6 12.6 YES 664.8 14.3 14.3 YES INLT10278 A2 Inlet 650.7 657.0 6.3 652.0 1.8 15.5 NO 657.0 2.9 21.5 NO 661.7 4.3 24.8 YES 664.8 4.9 25.5 YES CLEN10418 A2 ZCO12932 Cleanout 651.5 661.8 10.4 661.8 10.1 13.8 NO 663.8 17.3 23.9 YES 672.3 26.9 33.1 YES 676.3 30.6 37.2 YES CBIN10635 A2 CI10283 Curb Inlet 650.4 656.2 5.8 652.0 0.0 20.4 NO 656.2 0.0 29.2 NO 661.7 0.0 34.4 YES 664.8 0.0 49.4 YES CLEN10419 A2 ZCO11737 Cleanout 649.6 653.6 4.0 651.5 16.2 36.2 NO 654.6 27.5 55.8 YES 661.1 41.2 64.1 YES 664.1 47.0 66.8 YES CBIN10636 A2 Curb Inlet 651.5 655.5 4.0 651.7 0.0 0.0 NO 651.8 0.0 0.0 NO 655.5 0.0 2.0 NO 656.2 0.0 5.6 NO OTHR10381 A2 Other 651.0 655.0 4.0 651.2 0.0 0.7 NO 651.3 0.0 1.1 NO 655.0 0.0 6.8 NO 656.2 0.0 10.2 YES CLEN10420 A2 ZCO11738 Cleanout 648.9 655.3 6.5 649.0 0.0 0.7 NO 649.1 0.0 1.0 NO 655.5 0.0 21.6 NO 656.2 0.0 22.7 NO CLEN10421 A2 ZCO10523 Cleanout 644.9 654.3 9.4 646.4 0.0 38.9 NO 646.9 0.0 57.5 NO 654.4 0.0 85.5 NO 656.2 0.0 87.4 YES CLEN10422 A2 ZCO10524 Cleanout 645.9 655.6 9.7 647.8 2.3 38.4 NO 655.2 3.8 56.5 NO 655.7 5.7 63.3 NO 657.3 6.4 65.0 YES INLT10279 A2 Inlet 651.4 655.4 4.0 652.6 11.5 11.5 NO 654.1 19.4 19.4 NO 656.2 29.8 29.8 NO 657.8 33.8 33.8 YES INLT10280 A2 Inlet 648.6 654.6 6.1 649.9 0.0 11.5 NO 650.9 0.0 19.4 NO 652.7 0.0 28.5 NO 654.6 0.0 33.4 NO INLT10281 A2 ZINL12049 Inlet 648.2 656.9 8.7 649.1 0.0 15.3 NO 649.4 0.0 25.4 NO 649.8 0.0 38.0 NO 650.0 0.0 43.0 NO INLT10282 A2 ZINL11739 Inlet 649.5 656.5 7.0 650.1 3.8 3.8 NO 650.2 6.4 6.4 NO 650.5 9.9 9.9 NO 650.6 11.2 11.2 NO CBIN10637 A2 ZCO10890 Curb Inlet 645.7 655.2 9.6 647.4 6.4 21.2 NO 648.0 11.5 36.2 NO 648.7 17.5 54.7 NO 649.2 20.0 60.9 NO CBIN10638 A2 CI1008 Curb Inlet 632.6 636.6 4.0 633.1 6.7 6.7 NO 634.6 10.8 10.8 NO 641.8 16.1 21.1 YES 644.6 18.2 21.6 YES CLEN10423 A2 ZCO14007 Cleanout 621.5 627.5 6.0 626.3 0.0 88.0 NO 628.3 0.0 163.3 NO 630.5 0.0 163.2 YES 631.9 0.0 168.0 YES CBIN10639 A2 CI0578 Curb Inlet 657.0 661.0 4.0 657.9 0.0 0.4 NO 661.0 0.0 3.2 NO 661.1 0.0 8.8 NO 662.0 0.0 11.8 YES CLEN10424 A2 ZCO12075 Cleanout 656.4 660.6 4.3 657.9 0.0 22.8 NO 660.6 0.0 35.0 NO 660.7 0.0 42.0 NO 661.8 0.0 44.7 YES CBIN10640 A2 CI0579 Curb Inlet 656.8 660.8 4.0 658.0 0.0 0.3 NO 660.8 0.0 2.1 NO 660.9 0.0 4.7 NO 661.8 0.0 9.5 NO CLEN10425 A2 ZCO12076 Cleanout 655.4 660.1 4.6 656.2 3.7 25.2 NO 656.6 6.3 40.5 NO 660.4 9.9 49.9 NO 661.7 11.3 53.7 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 38 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10283 A2 Inlet 651.9 660.0 8.1 652.9 2.2 32.6 NO 653.2 6.0 57.2 NO 653.6 10.9 87.7 NO 653.7 12.9 100.4 NO OTHR10382 A2 ZOTHER10286Other 648.3 660.3 12.0 651.4 2.4 489.7 NO 654.0 4.0 964.7 NO 660.5 5.9 1646.5 NO 661.4 6.7 1914.5 YES CBIN10641 A2 CI1467 Curb Inlet 651.4 660.2 8.7 652.5 0.0 32.0 NO 652.8 0.0 56.4 NO 653.1 0.0 86.9 NO 653.2 0.0 99.3 NO OTHR10383 A2 ZOTHER10342Other 647.6 659.7 12.0 651.1 4.4 514.4 NO 653.7 7.5 1116.8 NO 660.1 11.4 1735.8 NO 661.1 13.0 2177.0 YES INLT10284 A2 INL037 Inlet 586.0 590.0 4.0 588.1 13.0 234.1 NO 588.5 20.4 288.3 NO 589.1 29.6 373.2 NO 589.2 33.4 385.7 NO CLEN10426 A2 CO14025 Cleanout 585.7 594.1 8.4 587.8 0.8 239.2 NO 588.2 1.4 296.6 NO 588.8 2.1 380.1 NO 589.0 2.4 394.4 NO CBIN10642 A2 CI0966 Curb Inlet 580.6 589.3 8.7 583.3 1.4 243.3 NO 583.9 2.2 302.2 NO 584.6 3.2 388.1 NO 584.8 3.6 408.2 NO CBIN10643 A2 Curb Inlet 671.9 677.0 5.0 677.1 0.0 8.4 NO 677.6 0.0 11.0 NO 679.5 0.0 7.8 YES 680.5 0.0 11.0 YES CBIN10644 A2 CI1031 Curb Inlet 671.0 675.0 4.1 675.5 0.0 13.3 NO 676.0 0.0 13.0 NO 676.8 0.0 13.0 YES 677.4 0.0 13.0 YES OTLT10076 A2 Outlet 801.0 808.0 7.0 801.3 0.0 3.5 NO 801.4 0.0 5.6 NO 801.5 0.0 7.5 NO 801.5 0.0 7.5 NO INLT10285 A2 Inlet 805.0 809.0 4.0 805.8 1.1 3.8 NO 806.1 1.8 6.1 NO 806.6 2.5 9.1 NO 807.0 2.8 10.3 NO INLT10286 A2 INL004 Inlet 593.8 597.8 4.0 594.0 0.0 0.0 NO 594.1 0.0 0.1 NO 594.3 0.0 0.1 NO 594.4 0.0 0.1 NO CBIN10645 A2 CI0807 Curb Inlet 593.4 598.6 5.2 594.0 3.4 3.4 NO 594.1 5.4 5.4 NO 594.3 7.9 7.9 NO 594.4 8.9 8.9 NO CBIN10646 A2 CI0825 Curb Inlet 597.6 601.6 4.0 597.6 0.0 0.0 NO 601.7 0.0 4.4 NO 602.3 0.0 10.6 NO 603.5 0.0 8.6 YES OTLT10077 A2 OUT10313 Outlet 601.2 605.2 4.0 603.5 2.5 76.4 NO 605.3 3.9 82.7 NO 605.7 5.7 86.2 NO 606.2 6.4 88.5 NO CLEN10427 A2 ZCO12873 Cleanout 604.3 609.5 5.1 609.5 13.5 73.7 NO 609.6 22.5 79.8 NO 611.0 33.6 85.3 YES 611.6 38.2 87.5 YES OTHR10384 A2 Other 723.1 727.1 4.0 726.2 61.3 73.6 NO 727.3 130.6 155.9 NO 728.1 208.5 248.7 YES 728.4 245.3 293.8 YES OTHR10385 A2 Other 717.3 721.3 4.0 718.9 1.8 96.4 NO 719.5 3.4 200.5 NO 720.0 5.2 316.9 NO 720.3 5.9 373.1 NO OTHR10386 A2 Other 713.6 717.6 4.0 714.8 4.8 97.2 NO 715.6 9.2 202.6 NO 716.2 14.1 320.8 NO 716.5 16.2 377.5 NO DETB10003 A2 Detention Basin 710.9 714.9 4.0 711.6 2.5 97.4 NO 712.3 4.4 203.0 NO 712.9 6.7 321.6 NO 713.2 7.7 378.5 NO OTHR10387 A2 Other 708.3 712.3 4.0 709.7 1.8 96.9 NO 710.3 3.3 201.8 NO 710.7 5.0 321.0 NO 711.0 5.7 378.6 NO OTHR10388 A2 Other 673.6 677.6 4.0 675.1 4.2 100.5 NO 675.6 8.0 209.2 NO 676.0 12.4 333.5 NO 676.2 14.2 393.2 NO OTHR10389 A2 ZOTHER10347Other 624.7 653.9 29.2 630.4 0.0 424.1 NO 632.6 0.0 691.4 NO 645.8 0.0 981.6 NO 654.5 0.0 1516.5 NO CBIN10647 A2 CI1474 Curb Inlet 648.8 655.4 6.6 648.8 0.0 0.0 NO 648.8 0.0 0.0 NO 648.8 0.0 0.0 NO 649.4 0.0 2.5 NO OTHR10390 A2 ZOTHER10348Other 624.7 655.7 31.0 629.3 0.0 681.0 NO 632.0 0.0 1216.5 NO 645.7 0.0 1832.5 NO 651.2 0.0 2390.1 NO OTHR10391 A2 Other 624.0 651.5 27.5 628.6 1.9 1004.3 NO 631.0 3.0 1825.5 NO 651.5 4.4 2907.3 NO 651.6 4.9 3554.4 NO CLEN10428 A2 ZCO12959 Cleanout 669.3 675.5 6.2 675.5 0.0 43.0 NO 680.4 0.0 70.5 YES 687.5 0.0 104.3 YES 692.6 0.0 121.9 YES OTHR10392 A2 ZOTHER10455Other 667.9 674.2 6.3 674.2 0.0 303.3 NO 675.0 0.0 435.9 NO 675.3 0.0 523.0 YES 675.6 0.0 538.2 YES CBIN10648 A2 CI1475 Curb Inlet 639.7 647.0 7.4 640.7 0.0 32.5 NO 641.2 0.0 55.4 NO 645.1 0.0 83.9 NO 647.0 0.0 91.3 NO OTHR10393 A2 ZOTHER10411Other 621.7 644.0 22.3 626.3 6.7 938.5 NO 628.6 11.4 1698.5 NO 630.3 16.8 2542.6 NO 632.1 19.2 2847.5 NO INLT10287 A2 INL021 Inlet 636.0 644.0 8.1 636.4 4.0 4.0 NO 636.5 7.1 7.1 NO 636.6 10.8 10.8 NO 636.7 12.3 12.3 NO INLT10288 A2 INL022 Inlet 636.3 640.3 4.0 637.2 3.4 25.6 NO 637.6 5.6 44.2 NO 639.6 8.3 67.4 NO 641.1 9.5 74.5 NO OTHR10394 A2 ZOTHER10354Other 620.7 641.3 20.6 625.3 2.8 938.1 NO 627.6 5.0 1694.0 NO 629.4 7.5 2521.1 NO 631.1 8.5 2782.9 NO CBIN10649 A2 CI1471 Curb Inlet 634.8 639.1 4.4 634.8 0.0 0.0 NO 634.8 0.0 0.0 NO 634.8 0.0 0.0 NO 634.8 0.0 0.0 NO OTHR10395 A2 ZOTHER10353Other 620.1 638.8 18.7 624.7 0.0 937.4 NO 627.0 0.0 1692.6 NO 629.0 0.0 2397.9 NO 630.6 0.0 2680.5 NO CBIN10650 A2 CI10313 Curb Inlet 633.6 638.8 5.2 633.6 0.0 0.0 NO 633.6 0.0 0.0 NO 633.6 0.0 0.3 NO 633.6 0.0 0.7 NO OTHR10396 A2 ZOTHER10314Other 619.6 637.2 17.6 624.2 12.4 939.2 NO 626.5 20.8 1695.3 NO 635.8 31.1 2344.3 NO 637.2 35.4 2686.3 NO CBIN10651 A2 CI1465 Curb Inlet 629.7 634.2 4.5 630.1 0.0 5.3 NO 630.2 0.0 8.7 NO 630.3 0.0 12.9 NO 630.3 0.0 14.6 NO OTHR10397 A2 ZOTHER10305Other 618.6 633.6 14.9 623.2 8.6 939.7 NO 625.5 14.1 1694.7 NO 633.0 20.8 2346.6 NO 633.2 23.5 2691.6 NO CLEN10429 A2 ZCO10538 Cleanout 624.0 632.6 8.6 624.6 0.0 10.6 NO 625.1 0.0 17.0 NO 628.2 0.0 25.1 NO 628.6 0.0 28.3 NO OTHR10398 A2 ZOTHER10304Other 618.2 631.9 13.7 622.8 4.7 941.5 NO 625.1 7.5 1697.2 NO 631.9 11.0 2360.5 NO 631.9 12.4 2697.6 NO CBIN10652 A2 CI1481 Curb Inlet 623.4 631.5 8.1 623.4 0.0 0.0 NO 624.9 0.0 0.6 NO 631.5 0.0 1.0 NO 631.5 0.0 1.2 NO OTHR10399 A2 ZOTHER10303Other 618.0 631.6 13.7 622.6 13.0 943.3 NO 624.9 20.6 1700.2 NO 631.6 30.4 2362.0 NO 631.6 34.3 2702.6 NO OTLT10078 A2 OUT10206 Outlet 717.9 721.9 4.0 719.9 57.2 57.2 NO 720.6 105.0 105.0 NO 721.2 171.4 171.4 NO 721.5 198.9 198.9 NO INLT10289 A2 Inlet 717.2 721.2 4.0 717.9 10.6 39.6 NO 718.1 16.9 80.9 NO 718.4 25.1 129.7 NO 718.5 28.5 183.3 NO OTHR10400 A2 ZOTHER10504Other 669.7 673.7 4.0 671.7 5.1 43.7 NO 672.3 8.2 83.3 NO 677.5 12.2 146.3 YES 680.5 13.8 159.9 YES INLT10290 A2 INL041 Inlet 669.4 673.4 4.0 670.4 3.1 46.6 NO 670.8 5.1 86.0 NO 677.6 7.7 227.3 YES 680.5 8.7 219.2 YES INLT10291 A2 Inlet 726.4 730.4 4.0 726.4 0.0 0.0 NO 726.4 0.0 0.0 NO 726.4 0.0 0.0 NO 726.4 0.0 0.0 NO INLT10292 A2 Inlet 744.5 748.5 4.0 745.2 0.5 0.5 NO 745.3 1.1 1.1 NO 745.4 1.6 1.6 NO 745.4 1.9 1.9 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 39 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10293 A2 Inlet 719.1 732.6 13.4 720.8 5.5 96.5 NO 721.5 13.1 200.7 NO 722.0 21.0 316.7 NO 722.2 24.3 373.1 NO INLT10294 A2 Inlet 675.0 679.0 4.0 675.1 0.0 76.3 NO 675.1 0.0 87.4 NO 675.2 0.0 97.0 NO 675.1 0.0 100.6 NO INLT10295 A2 Inlet 677.2 681.2 4.0 684.2 3.8 78.4 YES 687.0 5.9 89.1 YES 689.8 8.6 99.2 YES 691.0 9.7 102.7 YES INLT10296 A2 Inlet 681.6 685.6 4.0 684.4 90.5 98.5 NO 687.0 149.1 149.1 YES 689.8 222.7 222.7 YES 691.0 255.4 255.4 YES INLT10297 A2 Inlet 683.3 687.3 4.0 684.4 0.0 10.5 NO 687.0 0.0 15.9 NO 689.8 0.0 53.2 YES 691.0 0.0 78.1 YES INLT10298 A2 Inlet 688.9 692.9 4.0 690.0 10.6 10.6 NO 690.3 16.9 16.9 NO 690.6 25.0 25.0 NO 691.0 28.3 28.3 NO INLT10299 A2 Inlet 692.6 696.6 4.0 692.6 0.0 0.0 NO 692.6 0.0 0.0 NO 692.6 0.0 0.0 NO 692.6 0.0 0.0 NO OTHR10401 A2 Other 662.3 666.3 4.0 666.4 0.0 286.4 NO 667.6 0.0 470.6 YES 668.0 0.0 646.1 YES 668.1 0.0 699.5 YES OTHR10402 A2 Other 720.6 724.6 4.0 722.4 0.0 3.5 NO 723.8 0.0 6.6 NO 724.6 0.0 8.9 NO 725.3 0.0 9.5 NO OTHR10403 A2 Other 698.5 702.5 4.0 702.7 0.0 17.6 NO 703.9 0.0 23.0 YES 705.5 0.0 28.2 YES 706.2 0.0 30.9 YES OTHR10404 A2 Other 673.5 677.5 4.0 673.5 0.0 0.0 NO 673.5 0.0 0.0 NO 673.5 0.0 0.0 NO 673.5 0.0 0.0 NO OTHR10405 A2 Other 671.9 675.9 4.0 671.9 0.0 0.0 NO 671.9 0.0 0.0 NO 671.9 0.0 0.0 NO 671.9 0.0 0.0 NO OTHR10406 A2 Other 670.4 674.4 4.0 670.4 0.0 0.0 NO 670.4 0.0 0.0 NO 670.4 0.0 0.0 NO 670.4 0.0 0.0 NO OTHR10407 A2 Other 668.8 672.8 4.0 668.8 0.0 0.0 NO 668.8 0.0 0.0 NO 668.8 0.0 0.0 NO 668.8 0.0 0.0 NO OTHR10408 A2 Other 667.3 671.3 4.0 667.3 0.0 0.0 NO 667.3 0.0 0.0 NO 667.3 0.0 0.0 NO 667.3 0.0 0.0 NO OTHR10409 A2 Other 667.2 671.2 4.0 671.2 0.0 278.9 NO 672.0 0.0 469.7 NO 672.5 0.0 538.3 YES 672.6 0.0 561.6 YES OTHR10410 A2 Other 628.1 632.1 4.0 630.4 0.0 264.2 NO 632.2 0.0 571.3 NO 632.5 0.0 557.9 NO 632.4 0.0 580.9 NO OTHR10411 A2 Other 724.1 728.1 4.0 724.1 0.0 0.0 NO 724.1 0.0 0.0 NO 724.1 0.0 0.0 NO 724.1 0.0 0.0 NO OTHR10412 A2 Other 721.9 725.9 4.0 721.9 0.0 0.0 NO 721.9 0.0 0.0 NO 721.9 0.0 0.0 NO 721.9 0.0 0.0 NO OTHR10413 A2 Other 719.6 723.6 4.0 719.6 0.0 0.0 NO 719.6 0.0 0.0 NO 719.6 0.0 0.0 NO 719.6 0.0 0.0 NO OTHR10414 A2 Other 638.4 642.4 4.0 638.4 0.0 0.0 NO 640.5 0.0 28.9 NO 641.5 0.0 49.9 NO 641.0 0.0 45.9 NO OTHR10415 A2 Other 637.3 641.3 4.0 637.3 0.0 0.0 NO 640.5 0.0 50.8 NO 641.5 0.0 94.1 NO 641.0 0.0 87.4 NO OTHR10416 A2 Other 636.3 640.3 4.0 637.1 0.0 3.6 NO 640.5 0.0 82.5 NO 641.5 0.0 112.6 YES 641.0 0.0 106.3 NO OTHR10417 A2 Other 646.3 650.3 4.0 647.0 0.0 7.4 NO 647.2 0.0 13.1 NO 647.3 0.0 19.8 NO 647.4 0.0 22.6 NO OTHR10418 A2 Other 645.5 649.5 4.0 646.4 0.0 6.6 NO 646.5 0.0 12.2 NO 646.6 0.0 18.8 NO 646.7 0.0 21.6 NO OTHR10419 A2 Other 644.7 648.7 4.0 645.5 0.0 7.1 NO 645.7 0.0 11.7 NO 645.9 0.0 17.5 NO 645.9 0.0 20.1 NO OTHR10420 A2 Other 666.0 670.0 4.0 669.9 0.0 286.0 NO 670.8 0.0 482.4 NO 671.6 0.0 648.7 YES 671.8 0.0 692.9 YES OTHR10421 A2 Other 665.4 669.4 4.0 669.4 0.0 283.4 NO 670.4 0.0 473.6 YES 671.3 0.0 636.2 YES 671.5 0.0 686.4 YES OTHR10422 A2 Other 664.8 668.8 4.0 669.1 0.0 281.4 NO 670.2 0.0 467.7 YES 671.1 0.0 630.2 YES 671.3 0.0 680.4 YES OTHR10423 A2 Other 629.6 633.6 4.0 632.9 0.0 132.9 NO 635.6 0.0 438.6 YES 635.6 0.0 552.3 YES 636.1 0.0 544.3 YES OTHR10424 A2 Other 677.7 681.7 4.0 680.4 0.0 113.4 NO 681.0 0.0 174.0 NO 681.3 0.0 211.4 NO 682.0 0.0 223.0 NO OTHR10425 A2 Other 675.5 679.5 4.0 677.6 0.0 113.3 NO 678.4 0.0 173.3 NO 680.6 0.0 214.1 YES 681.8 0.0 230.6 YES OTHR10426 A2 Other 718.3 722.3 4.0 721.7 0.0 81.0 NO 722.3 0.0 157.5 NO 722.6 0.0 246.7 NO 722.8 0.0 271.4 NO OTHR10427 A2 Other 715.9 719.9 4.0 716.8 0.0 81.1 NO 717.0 0.0 158.7 NO 717.2 0.0 242.8 NO 717.2 0.0 269.9 NO OTHR10428 A2 Other 713.5 717.5 4.0 714.2 0.0 80.1 NO 714.5 0.0 156.3 NO 714.8 0.0 242.3 NO 714.9 0.0 271.5 NO OTHR10429 A2 Other 711.1 715.1 4.0 712.6 0.0 64.7 NO 713.1 0.0 135.0 NO 713.4 0.0 213.8 NO 713.5 0.0 243.7 NO OTHR10430 A2 Other 708.6 712.6 4.0 709.1 0.0 50.8 NO 709.3 0.0 125.0 NO 709.5 0.0 205.0 NO 709.6 0.0 235.8 NO OTHR10431 A2 Other 742.3 746.3 4.0 742.6 0.0 1.3 NO 742.8 0.0 2.8 NO 746.7 0.0 37.9 NO 749.1 0.0 46.2 YES OTHR10432 A2 Other 702.7 706.7 4.0 702.8 0.0 0.0 NO 702.8 0.0 0.0 NO 702.8 0.0 0.0 NO 702.8 0.0 0.0 NO OTHR10433 A2 Other 697.8 701.8 4.0 697.8 0.0 0.0 NO 697.8 0.0 0.0 NO 697.8 0.0 0.0 NO 697.8 0.0 0.0 NO OTHR10434 A2 Other 692.8 696.8 4.0 692.8 0.0 0.0 NO 692.8 0.0 0.0 NO 692.8 0.0 0.0 NO 692.8 0.0 0.0 NO OTHR10435 A2 Other 687.9 691.9 4.0 687.9 0.0 0.0 NO 687.9 0.0 0.0 NO 687.9 0.0 0.0 NO 689.5 0.0 29.0 NO OTHR10436 A2 Other 682.9 686.9 4.0 682.9 0.0 0.0 NO 682.9 0.0 0.0 NO 686.9 0.0 57.5 NO 689.5 0.0 66.3 YES OTHR10437 A2 Other 678.0 682.0 4.0 678.0 0.0 0.0 NO 680.8 0.0 35.7 NO 686.9 0.0 70.3 YES 689.5 0.0 82.7 YES OTHR10438 A2 Other 657.0 661.0 4.0 660.5 0.0 280.7 NO 661.9 0.0 901.9 NO 662.1 0.0 903.1 YES 662.1 0.0 906.0 YES OTHR10439 A2 Other 680.4 684.4 4.0 683.2 0.0 106.9 NO 683.7 0.0 162.9 NO 684.0 0.0 197.2 NO 684.1 0.0 207.1 NO OTHR10440 A2 Other 680.2 684.2 4.0 682.5 0.0 106.8 NO 682.8 0.0 162.9 NO 683.0 0.0 197.2 NO 683.1 0.0 207.1 NO OTHR10441 A2 Other 666.8 670.8 4.0 670.6 0.0 283.8 NO 671.5 0.0 475.6 NO 672.1 0.0 602.3 YES 672.3 0.0 631.2 YES OTHR10442 A2 Other 667.3 671.3 4.0 671.4 0.0 311.0 NO 672.2 0.0 487.3 NO 672.7 0.0 558.6 YES 672.8 0.0 595.2 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 40 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10443 A2 Other 672.9 677.7 4.8 675.0 0.0 59.8 NO 675.6 0.0 100.4 NO 677.7 0.0 218.4 NO 680.2 0.0 218.5 YES OTHR10444 A2 Other 716.8 720.8 4.0 717.4 0.0 2.2 NO 717.6 0.0 5.5 NO 717.8 0.0 8.9 NO 717.8 0.0 10.4 NO OTHR10445 A2 Other 713.0 718.5 5.4 713.0 0.0 0.0 NO 713.0 0.0 0.0 NO 713.0 0.0 0.0 NO 713.0 0.0 0.0 NO OTHR10446 A2 Other 710.9 716.3 5.4 710.9 0.0 0.0 NO 710.9 0.0 0.0 NO 710.9 0.0 0.0 NO 710.9 0.0 0.0 NO OTHR10447 A2 Other 708.8 714.2 5.4 708.8 0.0 0.0 NO 708.8 0.0 0.0 NO 708.8 0.0 0.0 NO 708.8 0.0 0.0 NO OTHR10448 A2 Other 706.7 712.1 5.4 706.7 0.0 0.0 NO 706.7 0.0 0.0 NO 706.7 0.0 0.0 NO 706.7 0.0 0.0 NO OTHR10449 A2 Other 704.5 710.0 5.4 704.5 0.0 0.0 NO 704.5 0.0 0.0 NO 704.5 0.0 0.0 NO 704.5 0.0 0.0 NO OTHR10450 A2 Other 702.4 707.8 5.4 702.4 0.0 0.0 NO 702.4 0.0 0.0 NO 702.4 0.0 0.0 NO 702.4 0.0 0.0 NO OTHR10451 A2 Other 700.3 705.7 5.4 700.3 0.0 0.0 NO 700.3 0.0 0.0 NO 700.3 0.0 0.0 NO 700.3 0.0 0.0 NO OTHR10452 A2 Other 734.9 738.9 4.0 734.9 0.0 0.0 NO 734.9 0.0 0.0 NO 734.9 0.0 0.0 NO 734.9 0.0 0.0 NO OTHR10453 A2 Other 731.8 735.8 4.0 731.8 0.0 0.0 NO 731.8 0.0 0.0 NO 731.8 0.0 0.0 NO 731.8 0.0 0.0 NO OTHR10454 A2 Other 728.7 732.7 4.0 728.7 0.0 0.0 NO 728.7 0.0 0.0 NO 728.7 0.0 0.0 NO 728.7 0.0 0.0 NO OTHR10455 A2 Other 723.9 729.6 5.7 723.9 0.0 0.0 NO 723.9 0.0 0.0 NO 723.9 0.0 0.0 NO 723.9 0.0 0.0 NO OTHR10456 A2 Other 722.3 727.9 5.7 722.3 0.0 0.0 NO 722.3 0.0 0.0 NO 722.3 0.0 0.0 NO 722.3 0.0 0.0 NO OTHR10457 A2 Other 720.6 726.3 5.7 720.6 0.0 0.0 NO 720.6 0.0 0.0 NO 720.6 0.0 0.0 NO 720.6 0.0 0.0 NO OTHR10458 A2 Other 719.0 724.6 5.7 719.0 0.0 0.0 NO 719.0 0.0 0.0 NO 719.0 0.0 0.0 NO 719.0 0.0 0.0 NO OTHR10459 A2 Other 636.0 640.0 4.0 636.9 0.0 16.2 NO 637.0 0.0 28.9 NO 637.2 0.0 44.5 NO 637.3 0.0 51.0 NO OTHR10460 A2 Other 685.7 689.7 4.0 688.3 0.0 60.0 NO 688.8 0.0 114.6 NO 689.3 0.0 160.6 NO 689.4 0.0 169.7 NO OTHR10461 A2 Other 683.7 687.7 4.0 685.6 0.0 56.3 NO 685.8 0.0 104.3 NO 686.1 0.0 151.4 NO 686.2 0.0 170.3 NO OTHR10462 A2 Other 681.7 685.7 4.0 683.2 0.0 58.3 NO 683.9 0.0 102.9 NO 684.4 0.0 144.2 NO 684.5 0.0 166.3 NO OTHR10463 A2 Other 676.5 680.5 4.0 680.3 0.0 138.6 NO 681.1 0.0 227.2 NO 681.6 0.0 294.1 YES 681.7 0.0 325.2 YES OTHR10464 A2 Other 665.0 669.0 4.0 666.2 0.0 13.7 NO 666.5 0.0 22.0 NO 666.8 0.0 32.9 NO 666.9 0.0 37.4 NO OTHR10465 A2 Other 664.2 668.2 4.0 665.3 0.0 12.1 NO 665.4 0.0 19.0 NO 665.6 0.0 28.8 NO 665.7 0.0 33.1 NO OTHR10466 A2 Other 663.4 667.4 4.0 664.8 0.0 10.3 NO 664.9 0.0 16.1 NO 665.2 0.0 24.5 NO 665.7 0.0 28.4 NO OTHR10467 A2 Other 662.6 666.6 4.0 663.5 0.0 7.5 NO 664.3 0.0 15.4 NO 665.2 0.0 21.0 NO 665.7 0.0 23.6 NO OTHR10468 A2 Other 665.6 669.6 4.0 665.6 0.0 0.0 NO 665.6 0.0 0.0 NO 665.6 0.0 0.0 NO 665.7 0.0 1.5 NO OTHR10469 A2 Other 693.9 697.9 4.0 695.9 0.0 72.2 NO 696.1 0.0 97.2 NO 696.3 0.0 119.8 NO 696.3 0.0 125.6 NO OTHR10470 A2 Other 691.8 695.8 4.0 693.0 0.0 91.4 NO 693.1 0.0 129.9 NO 693.3 0.0 171.5 NO 693.4 0.0 187.5 NO OTHR10471 A2 Other 690.0 694.0 4.0 692.4 0.0 90.7 NO 692.7 0.0 127.8 NO 693.0 0.0 170.5 NO 693.0 0.0 186.1 NO OTHR10472 A2 Other 688.2 692.2 4.0 690.0 0.0 88.6 NO 690.2 0.0 125.4 NO 690.4 0.0 170.7 NO 690.4 0.0 184.8 NO OTHR10473 A2 Other 686.4 690.4 4.0 688.6 0.0 88.2 NO 688.8 0.0 124.8 NO 689.5 0.0 169.2 NO 689.8 0.0 183.7 NO OTHR10474 A2 Other 684.6 714.6 30.0 687.1 0.0 87.0 NO 688.0 0.0 123.9 NO 689.3 0.0 166.4 NO 689.7 0.0 173.5 NO OTHR10475 A2 Other 682.8 712.8 30.0 686.2 6.2 89.2 NO 687.8 11.1 121.3 NO 689.2 18.5 146.9 NO 689.7 21.5 150.2 NO OTHR10476 A2 Other 634.0 638.0 4.0 638.9 0.0 279.3 NO 639.8 0.0 446.1 YES 640.4 0.0 553.9 YES 640.5 0.0 573.2 YES OTHR10477 A2 Other 633.2 637.2 4.0 638.1 0.0 273.4 NO 638.9 0.0 438.7 YES 639.4 0.0 551.7 YES 639.5 0.0 572.4 YES OTHR10478 A2 Other 632.4 636.4 4.0 637.2 0.0 265.0 NO 638.0 0.0 429.9 YES 638.4 0.0 549.2 YES 638.5 0.0 571.0 YES OTHR10479 A2 Other 631.5 635.5 4.0 635.7 0.0 260.0 NO 636.5 0.0 422.9 NO 637.0 0.0 547.2 YES 637.0 0.0 569.9 YES OTHR10480 A2 Other 743.4 747.4 4.0 744.4 0.0 10.3 NO 744.6 0.0 18.3 NO 744.8 0.0 27.9 NO 744.9 0.0 31.6 NO OTHR10481 A2 Other 742.5 746.5 4.0 743.3 0.0 10.0 NO 743.6 0.0 17.9 NO 743.8 0.0 27.7 NO 743.9 0.0 31.3 NO OTHR10482 A2 Other 741.6 745.6 4.0 743.0 0.0 9.5 NO 743.3 0.0 17.0 NO 743.5 0.0 26.4 NO 743.5 0.0 30.4 NO OTHR10483 A2 Other 747.5 751.5 4.0 747.5 0.0 0.0 NO 747.5 0.0 0.0 NO 747.5 0.0 0.0 NO 747.5 0.0 0.0 NO OTHR10484 A2 Other 746.4 750.4 4.0 746.4 0.0 0.0 NO 746.4 0.0 0.0 NO 746.4 0.0 0.0 NO 746.4 0.0 0.0 NO OTHR10485 A2 Other 745.4 749.4 4.0 745.4 0.0 0.0 NO 745.4 0.0 0.0 NO 745.5 0.0 0.6 NO 745.6 0.0 0.7 NO OTHR10486 A2 Other 674.1 678.1 4.0 674.1 0.0 0.0 NO 674.1 0.0 0.0 NO 674.1 0.0 0.0 NO 674.1 0.0 0.0 NO OTHR10487 A2 Other 673.9 677.9 4.0 673.9 0.0 0.0 NO 673.9 0.0 0.0 NO 673.9 0.0 0.0 NO 673.9 0.0 0.0 NO OTHR10488 A2 Other 673.7 677.7 4.0 673.7 0.0 0.0 NO 673.7 0.0 0.0 NO 673.7 0.0 0.0 NO 673.7 0.0 0.0 NO OTHR10489 A2 Other 673.5 677.5 4.0 673.6 0.0 0.0 NO 673.6 0.0 0.0 NO 673.6 0.0 0.0 NO 673.6 0.0 0.0 NO OTHR10490 A2 Other 673.4 677.4 4.0 673.4 0.0 0.0 NO 673.4 0.0 0.0 NO 673.4 0.0 0.0 NO 673.4 0.0 0.0 NO OTHR10491 A2 Other 673.2 677.2 4.0 673.2 0.0 0.0 NO 673.2 0.0 0.0 NO 673.2 0.0 0.0 NO 673.2 0.0 0.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 41 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10492 A2 Other 673.0 677.0 4.0 673.0 0.0 0.0 NO 673.0 0.0 0.0 NO 673.0 0.0 0.0 NO 673.0 0.0 0.0 NO OTHR10493 A2 Other 672.8 676.8 4.0 672.8 0.0 0.0 NO 672.8 0.0 0.0 NO 672.8 0.0 0.0 NO 672.8 0.0 0.0 NO OTHR10494 A2 Other 672.6 676.6 4.0 672.6 0.0 0.0 NO 672.6 0.0 0.0 NO 672.6 0.0 0.0 NO 672.6 0.0 0.0 NO OTHR10495 A2 Other 601.8 605.8 4.0 602.7 0.0 5.5 NO 603.0 0.0 8.7 NO 603.4 0.0 12.4 NO 603.6 0.0 13.8 NO OTHR10496 A2 Other 612.9 616.9 4.0 612.9 0.0 0.0 NO 612.9 0.0 0.0 NO 612.9 0.0 0.0 NO 612.9 0.0 0.0 NO OTHR10497 A2 Other 604.2 608.2 4.0 604.2 0.0 0.0 NO 604.2 0.0 0.0 NO 604.2 0.0 0.0 NO 604.2 0.0 0.0 NO OTHR10498 A2 Other 595.5 599.5 4.0 595.5 0.0 0.0 NO 595.5 0.0 0.0 NO 595.5 0.0 0.0 NO 595.5 0.0 0.0 NO OTHR10499 A2 Other 698.1 702.1 4.0 701.7 0.0 14.7 NO 702.6 0.0 17.7 NO 703.7 0.0 20.9 YES 704.2 0.0 21.9 YES OTHR10500 A2 Other 697.4 701.4 4.0 699.7 0.0 14.2 NO 700.0 0.0 16.5 NO 700.4 0.0 19.1 NO 700.7 0.0 20.2 NO OTHR10501 A2 Other 695.1 699.1 4.0 696.8 0.0 32.6 NO 697.6 0.0 48.9 NO 699.2 0.0 68.2 NO 699.8 0.0 75.8 NO OTHR10502 A2 Other 660.2 664.2 4.0 662.0 0.0 59.0 NO 662.2 0.0 84.9 NO 662.6 0.0 115.2 NO 662.7 0.0 128.9 NO OTHR10503 A2 Other 659.4 663.4 4.0 661.2 0.0 59.8 NO 661.7 0.0 84.5 NO 662.1 0.0 113.8 NO 662.3 0.0 127.7 NO OTHR10504 A2 Other 682.0 686.0 4.0 682.8 0.0 51.6 NO 683.0 0.0 73.6 NO 683.1 0.0 101.0 NO 683.2 0.0 112.1 NO OTHR10505 A2 Other 679.6 683.6 4.0 680.7 0.0 51.5 NO 680.9 0.0 73.5 NO 681.0 0.0 100.8 NO 681.1 0.0 111.9 NO OTHR10506 A2 Other 677.3 681.3 4.0 678.1 0.0 51.8 NO 678.2 0.0 73.7 NO 678.3 0.0 101.0 NO 678.4 0.0 112.0 NO OTHR10507 A2 Other 675.0 679.0 4.0 676.4 0.0 51.4 NO 676.5 0.0 73.4 NO 676.6 0.0 100.5 NO 676.7 0.0 111.5 NO OTHR10508 A2 Other 672.7 676.7 4.0 673.9 0.0 52.6 NO 674.1 0.0 74.6 NO 674.4 0.0 100.3 NO 674.4 0.0 110.9 NO OTHR10509 A2 Other 670.3 674.3 4.0 671.6 0.0 52.0 NO 671.8 0.0 73.8 NO 672.0 0.0 99.0 NO 672.0 0.0 111.1 NO OTHR10510 A2 Other 666.3 670.3 4.0 668.3 0.0 54.9 NO 668.5 0.0 78.6 NO 668.7 0.0 106.2 NO 668.8 0.0 119.2 NO OTHR10511 A2 Other 664.5 668.5 4.0 666.3 0.0 55.1 NO 666.5 0.0 78.7 NO 666.7 0.0 106.3 NO 666.8 0.0 119.2 NO OTHR10512 A2 Other 662.8 666.8 4.0 664.4 0.0 55.0 NO 664.6 0.0 78.6 NO 664.8 0.0 106.1 NO 664.9 0.0 119.0 NO OTHR10513 A2 Other 597.4 601.4 4.0 598.0 0.0 4.3 NO 598.1 0.0 6.4 NO 598.1 0.0 8.6 NO 598.2 0.0 9.5 NO OTHR10514 A2 Other 593.6 597.6 4.0 595.1 0.0 4.1 NO 595.5 0.0 6.2 NO 595.7 0.0 8.4 NO 595.9 0.0 9.3 NO OTHR10515 A2 Other 589.8 593.8 4.0 590.4 0.0 1.9 NO 590.6 0.0 3.9 NO 590.7 0.0 6.1 NO 590.7 0.0 7.1 NO OTHR10516 A2 Other 815.9 819.9 4.0 816.7 0.0 3.1 NO 816.9 0.0 4.9 NO 817.0 0.0 7.2 NO 817.0 0.0 8.2 NO OTHR10517 A2 Other 810.4 814.4 4.0 810.6 0.0 2.9 NO 810.6 0.0 4.7 NO 810.6 0.0 7.0 NO 810.7 0.0 7.9 NO OTHR10518 A2 Other 699.6 703.6 4.0 701.9 0.0 96.9 NO 702.9 0.0 201.8 NO 703.5 0.0 321.0 NO 703.7 0.0 378.6 NO OTHR10519 A2 Other 690.9 694.9 4.0 692.9 0.0 96.9 NO 693.6 0.0 201.8 NO 694.1 0.0 321.0 NO 694.3 0.0 378.7 NO OTHR10520 A2 Other 682.3 686.3 4.0 684.9 0.0 96.9 NO 686.1 0.0 201.7 NO 686.8 0.0 321.0 NO 687.0 0.0 378.6 NO OTHR10521 A2 Other 664.0 668.0 4.0 665.7 0.0 21.1 NO 666.3 0.0 42.2 NO 666.7 0.0 64.4 NO 667.0 0.0 77.1 NO OTHR10522 A2 Other 663.1 667.1 4.0 664.3 0.0 20.6 NO 665.1 0.0 41.5 NO 666.0 0.0 62.7 NO 666.4 0.0 73.7 NO OTHR10523 A2 Other 669.8 673.8 4.0 672.2 0.0 100.5 NO 672.8 0.0 209.2 NO 673.3 0.0 333.5 NO 673.5 0.0 393.1 NO OTHR10524 A2 Other 666.0 670.0 4.0 667.2 0.0 100.5 NO 667.6 0.0 209.2 NO 668.1 0.0 333.5 NO 668.2 0.0 393.0 NO OTHR10525 A2 Other 654.6 658.6 4.0 656.0 0.0 25.3 NO 656.3 0.0 44.0 NO 656.7 0.0 61.7 NO 656.8 0.0 68.3 NO OTHR10526 A2 Other 650.9 654.9 4.0 652.2 0.0 25.0 NO 652.6 0.0 42.0 NO 652.9 0.0 61.9 NO 653.0 0.0 68.4 NO OTHR10527 A2 Other 647.3 651.3 4.0 648.7 0.0 24.4 NO 649.1 0.0 41.2 NO 649.5 0.0 61.6 NO 649.6 0.0 68.1 NO OTHR10528 A2 Other 643.6 647.6 4.0 645.7 0.0 23.8 NO 646.1 0.0 40.3 NO 646.4 0.0 61.2 NO 646.4 0.0 67.6 NO OTHR10529 A2 Other 639.9 643.9 4.0 640.6 0.0 23.2 NO 640.8 0.0 39.9 NO 641.0 0.0 61.0 NO 641.1 0.0 67.5 NO OTHR10530 A2 Other 717.7 721.7 4.0 719.8 0.0 36.6 NO 720.5 0.0 76.0 NO 721.2 0.0 123.3 NO 721.5 0.0 146.1 NO OTHR10531 A2 Other 717.4 721.4 4.0 719.4 0.0 36.6 NO 719.8 0.0 75.9 NO 720.1 0.0 122.5 NO 720.4 0.0 145.5 NO OTHR10532 A2 Other 669.5 673.5 4.0 671.1 0.0 43.6 NO 671.5 0.0 83.3 NO 677.5 0.0 294.8 YES 680.5 0.0 296.6 YES OTHR10533 A2 Other 667.9 671.9 4.0 671.1 0.0 30.1 NO 672.1 0.0 50.9 NO 672.4 0.0 75.5 NO 672.5 0.0 86.6 NO OTHR10534 A2 Other 667.2 671.2 4.0 670.1 0.0 29.9 NO 671.0 0.0 51.8 NO 671.8 0.0 74.9 NO 672.0 0.0 87.7 NO OTHR10535 A2 Other 629.7 633.7 4.0 632.3 0.0 264.1 NO 633.3 0.0 431.4 NO 633.2 0.0 555.5 NO 633.4 0.0 579.6 NO OTHR10536 A2 Other 724.1 728.1 4.0 724.1 0.0 0.0 NO 724.1 0.0 0.0 NO 724.1 0.0 0.0 NO 724.1 0.0 0.0 NO OTHR10537 A2 Other 721.8 725.8 4.0 721.8 0.0 0.0 NO 721.8 0.0 0.0 NO 721.8 0.0 0.0 NO 721.8 0.0 0.0 NO OTHR10538 A2 Other 719.6 723.6 4.0 719.6 0.0 0.0 NO 719.6 0.0 0.0 NO 719.6 0.0 0.0 NO 719.6 0.0 0.0 NO OTHR10539 A2 Other 740.7 744.7 4.0 741.6 0.0 0.5 NO 742.2 0.0 1.0 NO 742.4 0.0 1.6 NO 742.4 0.0 1.9 NO OTHR10540 A2 Other 736.8 740.8 4.0 737.0 0.0 0.4 NO 737.1 0.0 0.8 NO 737.1 0.0 1.4 NO 737.2 0.0 1.6 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 42 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10541 A2 Other 718.2 725.3 7.1 720.1 0.0 96.2 NO 720.7 0.0 200.0 NO 721.2 0.0 316.0 NO 721.4 0.0 372.0 NO OTHR10542 A2 Other 719.6 733.1 13.4 721.7 0.0 48.5 NO 722.4 0.0 83.9 NO 722.9 0.0 115.9 NO 723.1 0.0 124.3 NO OTHR10543 A2 Other 719.5 732.9 13.4 721.7 0.0 30.5 NO 722.3 0.0 57.3 NO 722.9 0.0 86.5 NO 723.1 0.0 99.1 NO OTHR10544 A2 Other 719.3 732.7 13.4 721.1 0.0 21.3 NO 721.6 0.0 44.6 NO 722.0 0.0 73.4 NO 722.2 0.0 89.3 NO OTHR10545 A2 Other 726.1 732.8 6.7 726.5 0.0 3.3 NO 726.6 0.0 6.3 NO 726.7 0.0 10.1 NO 726.7 0.0 11.6 NO OTHR10546 A2 Other 655.1 659.1 4.0 659.4 0.0 316.9 NO 661.0 0.0 751.0 YES 661.2 0.0 821.5 YES 661.3 0.0 836.5 YES OTHR10547 A2 Other 653.5 657.5 4.0 656.8 0.0 317.1 NO 657.8 0.0 737.2 NO 658.0 0.0 819.4 NO 658.0 0.0 836.3 NO OTHR10548 A2 Other 652.0 656.0 4.0 655.7 0.0 316.7 NO 656.6 0.0 725.6 NO 656.7 0.0 814.2 NO 656.8 0.0 836.1 NO OTHR10549 A2 Other 650.4 654.4 4.0 654.5 0.0 314.8 NO 655.0 0.0 710.7 NO 655.2 0.0 810.6 NO 655.2 0.0 835.9 NO OTHR10550 A2 Other 648.8 652.8 4.0 653.1 0.0 359.7 NO 653.3 0.0 711.8 NO 653.8 0.0 814.6 YES 653.9 0.0 835.6 YES OTHR10551 A2 Other 647.2 651.2 4.0 653.0 0.0 369.6 YES 653.1 0.0 681.1 YES 653.4 0.0 784.8 YES 653.6 0.0 835.4 YES OTHR10552 A2 Other 645.6 649.6 4.0 649.8 0.0 414.6 NO 651.8 0.0 674.5 YES 652.4 0.0 787.8 YES 652.5 0.0 840.3 YES OTHR10553 A2 Other 697.0 701.0 4.0 698.6 0.0 24.1 NO 699.2 0.0 42.7 NO 699.6 0.0 59.6 NO 699.8 0.0 69.3 NO OTHR10554 A2 Other 695.1 699.1 4.0 696.8 0.0 23.9 NO 697.3 0.0 42.2 NO 697.6 0.0 58.8 NO 697.7 0.0 67.1 NO OTHR10555 A2 Other 693.2 697.2 4.0 695.0 0.0 23.3 NO 695.6 0.0 40.8 NO 695.9 0.0 58.3 NO 697.0 0.0 66.9 NO OTHR10556 A2 Other 691.3 695.3 4.0 693.0 0.0 23.1 NO 693.2 0.0 40.6 NO 695.9 0.0 57.8 NO 697.0 0.0 64.5 YES OTHR10557 A2 Other 689.4 693.4 4.0 690.9 0.0 23.3 NO 693.1 0.0 40.1 NO 695.9 0.0 37.6 YES 697.0 0.0 34.9 YES OTHR10558 A2 Other 692.0 696.0 4.0 692.0 0.0 0.0 NO 692.0 0.0 0.0 NO 692.0 0.0 0.0 NO 692.0 0.0 0.0 NO OTHR10559 A2 Other 691.4 695.4 4.0 691.4 0.0 0.0 NO 691.4 0.0 0.0 NO 691.4 0.0 0.0 NO 691.4 0.0 0.0 NO OTHR10560 A2 Other 690.7 694.7 4.0 690.7 0.0 0.0 NO 690.7 0.0 0.0 NO 690.7 0.0 0.0 NO 690.9 0.0 0.4 NO OTHR10561 A2 Other 690.1 694.1 4.0 690.1 0.0 0.0 NO 690.2 0.0 0.1 NO 690.4 0.0 0.9 NO 691.0 0.0 1.4 NO OTHR10562 A2 Other 689.5 693.5 4.0 690.0 0.0 0.5 NO 690.3 0.0 0.6 NO 690.6 0.0 2.2 NO 691.0 0.0 3.1 NO OTHR10563 A2 Other 688.0 692.0 4.0 689.4 0.0 10.1 NO 689.8 0.0 15.9 NO 690.1 0.0 21.6 NO 691.0 0.0 25.1 NO OTHR10564 A2 Other 687.1 691.1 4.0 688.4 0.0 9.8 NO 688.6 0.0 14.8 NO 689.8 0.0 19.7 NO 691.0 0.0 24.6 NO OTHR10565 A2 Other 686.1 690.1 4.0 687.7 0.0 9.6 NO 688.0 0.0 14.2 NO 689.8 0.0 21.4 NO 691.0 0.0 35.6 NO OTHR10566 A2 Other 685.2 689.2 4.0 686.3 0.0 8.0 NO 687.0 0.0 14.9 NO 689.8 0.0 36.4 NO 691.0 0.0 57.5 YES OTHR10567 A2 Other 684.3 688.3 4.0 685.0 0.0 7.8 NO 687.0 0.0 16.3 NO 689.8 0.0 47.4 YES 691.0 0.0 72.6 YES OTHR10568 A2 Other 682.8 686.8 4.0 684.4 0.0 9.9 NO 687.0 0.0 15.2 NO 689.8 0.0 62.7 YES 691.0 0.0 87.4 YES OTHR10569 A2 Other 682.2 686.2 4.0 684.4 0.0 10.0 NO 687.0 0.0 22.7 NO 689.8 0.0 75.6 YES 691.0 0.0 103.2 YES OTHR10570 A2 Other 768.5 772.5 4.0 770.0 0.0 30.8 NO 770.4 0.0 54.0 NO 770.7 0.0 77.4 NO 770.8 0.0 86.6 NO OTHR10571 A2 Other 764.0 768.0 4.0 765.9 0.0 29.9 NO 766.2 0.0 53.0 NO 766.4 0.0 76.7 NO 766.5 0.0 86.0 NO OTHR10572 A2 Other 759.4 763.4 4.0 760.4 0.0 26.7 NO 760.6 0.0 53.4 NO 760.7 0.0 76.5 NO 760.8 0.0 85.5 NO OTHR10573 A2 Other 754.9 758.9 4.0 755.5 0.0 27.1 NO 755.7 0.0 54.2 NO 755.9 0.0 77.9 NO 755.9 0.0 87.2 NO OTHR10574 A2 Other 750.3 754.3 4.0 752.0 0.0 25.1 NO 752.7 0.0 49.9 NO 753.3 0.0 73.9 NO 753.5 0.0 83.6 NO OTHR10575 A2 Other 745.8 749.8 4.0 746.5 0.0 17.7 NO 746.7 0.0 35.6 NO 746.8 0.0 55.9 NO 746.9 0.0 66.0 NO OTHR10576 A2 Other 741.3 745.3 4.0 742.4 0.0 17.5 NO 742.9 0.0 35.3 NO 743.4 0.0 55.3 NO 743.6 0.0 65.4 NO OTHR10577 A2 Other 736.7 740.7 4.0 737.4 0.0 15.9 NO 737.7 0.0 31.7 NO 737.9 0.0 50.5 NO 738.0 0.0 60.6 NO OTHR10578 A2 Other 732.2 736.2 4.0 732.8 0.0 16.0 NO 733.0 0.0 32.1 NO 733.2 0.0 50.9 NO 733.2 0.0 61.2 NO OTHR10579 A2 Other 727.6 731.6 4.0 728.3 0.0 15.9 NO 728.5 0.0 31.6 NO 728.7 0.0 50.1 NO 728.8 0.0 60.1 NO OTHR10580 A2 Other 681.5 687.4 5.9 688.1 0.0 338.3 NO 689.2 0.0 677.1 YES 690.1 0.0 1096.7 YES 690.7 0.0 1422.4 YES OTHR10581 A2 Other 680.3 686.2 5.9 687.1 0.0 338.2 NO 688.3 0.0 676.7 YES 689.1 0.0 1096.1 YES 689.5 0.0 1386.8 YES OTHR10582 A2 Other 679.2 685.1 5.9 685.9 0.0 338.2 NO 687.2 0.0 676.0 YES 688.0 0.0 1095.1 YES 688.3 0.0 1321.3 YES OTHR10583 A2 Other 678.0 684.0 5.9 685.1 0.0 337.7 YES 686.8 0.0 675.3 YES 687.4 0.0 1094.2 YES 687.6 0.0 1292.1 YES OTHR10584 A2 Other 676.9 682.8 5.9 683.8 0.0 336.8 YES 684.8 0.0 675.3 YES 685.5 0.0 1094.1 YES 685.8 0.0 1274.4 YES OTHR10585 A2 Other 675.7 681.7 5.9 682.8 0.0 335.4 YES 684.0 0.0 673.8 YES 684.7 0.0 1092.7 YES 684.9 0.0 1266.9 YES OTHR10586 A2 Other 674.6 680.5 5.9 681.5 0.0 334.4 NO 683.1 0.0 672.0 YES 683.7 0.0 1092.3 YES 683.9 0.0 1262.6 YES OTHR10587 A2 Other 673.4 679.4 5.9 677.8 0.0 334.2 NO 679.3 0.0 670.2 NO 680.9 0.0 1093.1 YES 681.4 0.0 1261.2 YES OTHR10588 A2 Other 709.3 713.3 4.0 709.3 0.0 0.0 NO 709.3 0.0 0.0 NO 709.3 0.0 0.0 NO 709.3 0.0 0.0 NO OTHR10589 A2 Other 706.5 710.5 4.0 706.5 0.0 0.0 NO 706.5 0.0 0.0 NO 706.5 0.0 0.0 NO 706.5 0.0 0.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 43 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10590 A2 Other 703.7 707.7 4.0 705.0 87.6 87.6 NO 705.3 154.2 154.2 NO 705.7 245.7 245.7 NO 705.7 279.3 279.3 NO OTHR10591 A2 Other 700.8 704.8 4.0 701.9 0.0 84.4 NO 702.2 0.0 146.3 NO 702.6 0.0 230.6 NO 703.0 0.0 269.6 NO OTHR10592 A2 Other 698.0 702.0 4.0 699.6 0.0 79.3 NO 700.9 0.0 138.7 NO 702.5 0.0 215.0 NO 702.9 0.0 251.1 NO OTHR10593 A2 Other 680.2 684.2 4.0 684.2 0.0 98.5 NO 687.0 0.0 125.2 YES 689.8 0.0 149.8 YES 691.0 0.0 157.2 YES OTHR10594 A2 Other 678.7 682.7 4.0 684.2 0.0 91.0 YES 687.0 0.0 105.1 YES 689.8 0.0 122.6 YES 691.0 0.0 128.2 YES OTHR10595 A2 Other 663.5 667.5 4.0 668.6 0.0 282.0 YES 669.5 0.0 466.5 YES 670.1 0.0 633.9 YES 670.3 0.0 685.6 YES OTHR10596 A2 Other 662.9 666.9 4.0 667.1 0.0 281.3 NO 668.2 0.0 464.5 YES 668.7 0.0 633.7 YES 668.9 0.0 685.5 YES OTHR10597 A2 Other 661.1 665.1 4.0 665.9 0.0 286.1 NO 667.0 0.0 470.7 YES 667.5 0.0 646.0 YES 667.6 0.0 699.5 YES OTHR10598 A2 Other 659.9 663.9 4.0 664.2 0.0 285.8 NO 665.7 0.0 473.2 YES 665.8 0.0 646.1 YES 665.8 0.0 699.8 YES OTHR10599 A2 Other 658.8 662.8 4.0 663.9 0.0 278.9 YES 665.6 0.0 672.8 YES 665.6 0.0 715.0 YES 665.6 0.0 698.5 YES OTHR10600 A2 Other 638.6 642.6 4.0 639.2 0.0 9.2 NO 639.4 0.0 16.2 NO 639.6 0.0 24.8 NO 639.6 0.0 28.3 NO OTHR10601 A2 Other 680.4 684.4 4.0 683.2 0.0 83.3 NO 684.0 0.0 127.6 NO 684.4 0.0 168.1 NO 684.5 0.0 176.7 NO OTHR10602 A2 Other 735.3 739.3 4.0 735.3 0.0 0.0 NO 735.3 0.0 0.0 NO 735.3 0.0 0.0 NO 735.3 0.0 0.0 NO OTHR10603 A2 Other 636.6 640.6 4.0 639.5 0.0 231.4 NO 640.5 0.0 371.1 NO 641.0 0.0 445.6 NO 641.1 0.0 456.7 NO OTHR10604 A2 Other 744.6 748.6 4.0 745.3 0.0 10.5 NO 745.5 0.0 18.7 NO 745.7 0.0 28.6 NO 745.7 0.0 32.1 NO OTHR10605 A2 Other 594.7 600.1 5.4 599.7 0.0 287.9 NO 600.3 0.0 302.3 NO 601.0 0.0 342.7 NO 601.0 0.0 373.3 NO OTHR10606 A2 Other 591.8 597.2 5.4 595.0 0.0 231.4 NO 595.4 0.0 280.3 NO 595.9 0.0 484.9 NO 596.0 0.0 554.8 NO OTHR10607 A2 Other 588.9 594.3 5.4 591.5 0.0 228.5 NO 591.7 0.0 279.6 NO 592.0 0.0 362.3 NO 592.0 0.0 372.4 NO OTHR10608 A2 Other 725.8 729.8 4.0 726.5 0.0 5.7 NO 727.3 0.0 11.5 NO 728.1 0.0 17.8 NO 728.4 0.0 20.4 NO OTHR10609 A2 Other 724.4 728.4 4.0 726.2 0.0 5.6 NO 727.3 0.0 11.4 NO 728.1 0.0 15.8 NO 728.4 0.0 18.9 NO OTHR10610 A2 Other 716.1 720.1 4.0 718.3 0.0 96.3 NO 718.9 0.0 200.4 NO 719.4 0.0 316.8 NO 719.6 0.0 373.0 NO OTHR10611 A2 Other 714.8 718.8 4.0 716.0 0.0 96.2 NO 716.5 0.0 200.3 NO 717.0 0.0 316.9 NO 717.3 0.0 373.0 NO OTHR10612 A2 Other 712.7 716.7 4.0 714.7 0.0 97.2 NO 715.5 0.0 202.5 NO 716.1 0.0 320.8 NO 716.3 0.0 377.5 NO OTHR10613 A2 Other 711.8 715.8 4.0 712.4 0.0 97.1 NO 712.7 0.0 202.4 NO 713.2 0.0 321.0 NO 713.4 0.0 377.7 NO OTHR10614 A2 Other 710.0 714.0 4.0 711.4 0.0 97.3 NO 712.2 0.0 202.7 NO 712.9 0.0 321.3 NO 713.1 0.0 378.3 NO OTHR10615 A2 Other 709.2 713.2 4.0 711.3 0.0 96.8 NO 712.1 0.0 201.5 NO 712.7 0.0 320.2 NO 712.9 0.0 377.5 NO OTHR10616 A2 Other 717.8 721.8 4.0 718.9 0.0 0.4 NO 719.5 0.0 0.8 NO 720.0 0.0 1.2 NO 720.3 0.0 1.4 NO OTHR10617 A2 Other 714.7 718.7 4.0 715.3 0.0 1.5 NO 715.6 0.0 3.3 NO 716.2 0.0 5.1 NO 716.5 0.0 5.9 NO OTHR10618 A2 Other 710.3 714.5 4.2 710.5 0.0 0.7 NO 710.6 0.0 1.5 NO 710.7 0.0 2.3 NO 711.0 0.0 2.6 NO OTHR10619 A2 Other 676.2 680.2 4.0 676.7 0.0 7.2 NO 676.8 0.0 14.9 NO 677.0 0.0 23.9 NO 677.0 0.0 27.7 NO OTLT10079 A2 OUT10319 Outlet 612.8 616.8 4.0 612.8 0.0 10.7 NO 612.8 0.0 19.0 NO 612.8 0.0 29.8 NO 612.8 0.0 34.0 NO CBIN10653 A2 CI0836 Curb Inlet 594.7 598.7 4.0 595.0 2.5 2.5 NO 598.8 3.9 3.9 NO 602.1 5.8 9.1 YES 603.3 6.5 7.7 YES OTHR10620 A2 Other 721.1 728.9 7.8 724.0 0.0 73.5 NO 725.1 0.0 155.5 NO 725.7 0.0 248.3 NO 726.0 0.0 293.6 NO OTHR10621 A2 Other 646.3 650.4 4.1 648.3 0.0 43.4 NO 648.6 0.0 75.6 NO 648.7 0.0 108.5 NO 648.8 0.0 120.5 NO OTHR10622 A2 Other 644.5 648.6 4.1 646.3 0.0 45.3 NO 646.8 0.0 72.4 NO 647.0 0.0 108.2 NO 647.0 0.0 119.5 NO OTHR10623 A2 Other 642.7 646.8 4.1 643.8 0.0 44.1 NO 644.2 0.0 72.2 NO 644.5 0.0 110.3 NO 644.6 0.0 119.9 NO OTHR10624 A2 Other 640.8 645.0 4.1 641.9 0.0 43.6 NO 642.1 0.0 70.8 NO 642.5 0.0 110.0 NO 642.9 0.0 121.2 NO OTHR10625 A2 Other 639.0 643.1 4.1 639.9 0.0 43.3 NO 640.6 0.0 72.8 NO 642.2 0.0 108.6 NO 642.8 0.0 116.6 NO OTHR10626 A2 Other 657.0 661.0 4.0 659.8 0.0 61.1 NO 661.4 0.0 202.6 NO 661.6 0.0 187.1 NO 661.7 0.0 187.9 NO CBIN10654 A3 CI10069 Curb Inlet 741.3 749.6 8.3 741.7 2.7 2.7 NO 741.8 4.4 4.4 NO 741.9 6.6 6.6 NO 741.9 7.5 7.5 NO CLEN10430 A3 CO14004 Cleanout 739.7 750.4 10.7 740.1 1.8 4.4 NO 740.2 3.1 7.5 NO 740.4 4.7 11.2 NO 740.4 5.3 12.8 NO CBIN10655 A3 CI0218 Curb Inlet 741.8 749.7 7.9 741.8 0.0 0.0 NO 741.8 0.0 0.0 NO 741.8 0.0 0.0 NO 741.8 0.0 0.0 NO CLEN10431 A3 ZCO10207 Cleanout 725.2 737.4 12.2 725.6 0.0 4.4 NO 725.7 0.0 7.4 NO 725.8 0.0 11.2 NO 725.9 0.0 12.8 NO CBIN10656 A3 CI0234 Curb Inlet 719.7 732.8 13.1 719.7 0.0 0.0 NO 719.7 0.0 0.0 NO 719.7 0.0 0.0 NO 719.7 0.0 0.0 NO CLEN10432 A3 ZCO10208 Cleanout 716.8 732.5 15.7 717.6 0.5 24.6 NO 717.9 0.7 46.3 NO 718.1 1.1 71.2 NO 718.2 1.2 81.6 NO CBIN10657 A3 CI0222 Curb Inlet 719.2 734.1 14.9 720.0 1.4 19.8 NO 720.4 2.7 38.1 NO 720.7 4.2 58.8 NO 720.8 4.8 67.5 NO CLEN10433 A3 ZCO11627 Cleanout 731.8 745.9 14.1 732.5 0.0 18.5 NO 732.7 0.0 35.5 NO 733.0 0.0 54.7 NO 733.0 0.0 62.9 NO CLEN10434 A3 ZCO11628 Cleanout 712.9 728.5 15.6 713.7 0.0 29.0 NO 714.0 0.0 53.4 NO 714.3 0.0 81.8 NO 714.4 0.0 93.7 NO CBIN10658 A3 CI1333 Curb Inlet 720.9 730.3 9.4 720.9 0.0 0.0 NO 720.9 0.0 0.0 NO 720.9 0.0 0.0 NO 720.9 0.0 0.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 44 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN10659 A3 CI1334 Curb Inlet 718.5 729.7 11.3 719.0 4.4 4.4 NO 719.2 7.2 7.2 NO 719.4 10.7 10.7 NO 719.5 12.1 12.1 NO CBIN10660 A3 CI1330 Curb Inlet 722.6 735.4 12.8 722.6 0.0 0.0 NO 722.6 0.0 0.0 NO 722.6 0.0 0.0 NO 722.6 0.0 0.0 NO CLEN10435 A3 ZCO10209 Cleanout 671.5 684.7 13.2 672.4 0.9 31.5 NO 672.7 1.5 57.6 NO 673.0 2.2 87.9 NO 673.1 2.5 100.6 NO CBIN10661 A3 CI1331 Curb Inlet 730.4 735.8 5.4 730.4 0.0 0.0 NO 730.4 0.0 0.0 NO 730.4 0.0 0.0 NO 730.4 0.0 0.0 NO INLT10300 A3 ZINL11013 Inlet 732.1 739.2 7.0 732.1 0.0 0.0 NO 732.1 0.0 0.0 NO 732.1 0.0 0.0 NO 732.1 0.0 0.0 NO CLEN10436 A3 ZCO11014 Cleanout 659.5 672.3 12.8 661.5 2.9 139.7 NO 662.3 4.7 243.0 NO 663.1 6.7 358.9 NO 672.4 7.5 420.4 NO CLEN10437 A3 ZCO11926 Cleanout 671.2 682.1 10.9 672.8 2.6 107.1 NO 673.3 4.0 184.5 NO 673.8 5.8 271.5 NO 674.0 6.5 311.2 NO CBIN10662 A3 CI1359 Curb Inlet 675.4 683.0 7.6 675.4 0.0 0.0 NO 675.4 0.0 0.0 NO 675.4 0.0 0.0 NO 675.4 0.0 0.0 NO CBIN10663 A3 CI0245 Curb Inlet 656.3 662.9 6.6 656.3 0.0 0.0 NO 656.3 0.0 0.0 NO 656.3 0.0 0.0 NO 663.2 0.0 20.4 NO CLEN10438 A3 ZCO12381 Cleanout 652.1 662.9 10.8 654.2 1.4 141.1 NO 655.0 2.3 245.5 NO 656.1 3.4 361.7 NO 662.9 3.9 435.3 NO CLEN10439 A3 ZCO12382 Cleanout 622.7 635.6 12.9 626.2 0.0 312.3 NO 627.9 0.0 520.6 NO 637.4 0.0 847.8 YES 639.6 0.0 792.5 YES CBIN10664 A3 CI0233 Curb Inlet 656.3 663.2 6.9 656.3 0.0 0.0 NO 656.3 0.0 0.0 NO 656.3 0.0 0.0 NO 663.3 0.0 12.1 NO CLEN10440 A3 ZCO11015 Cleanout 624.2 638.2 13.9 626.8 7.9 114.2 NO 628.2 12.5 185.0 NO 638.6 18.3 285.8 NO 640.2 20.7 294.7 YES CBIN10665 A3 CI1354 Curb Inlet 662.4 669.1 6.7 662.4 0.0 0.0 NO 662.4 0.0 0.0 NO 662.4 0.0 0.0 NO 662.4 0.0 0.0 NO CBIN10666 A3 CI1357 Curb Inlet 652.1 658.5 6.5 652.1 0.0 0.0 NO 652.1 0.0 0.0 NO 652.1 0.0 0.0 NO 652.1 0.0 0.0 NO CBIN10667 A3 CI1353 Curb Inlet 661.6 667.9 6.3 662.0 3.6 3.6 NO 662.2 5.6 5.6 NO 662.3 8.1 8.1 NO 662.3 9.1 9.1 NO CLEN10441 A3 ZCO10210 Cleanout 688.0 699.0 11.0 689.4 2.6 105.0 NO 689.9 4.0 180.9 NO 690.4 5.8 266.5 NO 690.6 6.5 304.4 NO CLEN10442 A3 ZCO10211 Cleanout 642.7 651.2 8.4 643.6 0.0 22.8 NO 643.9 0.0 35.8 NO 644.2 0.0 51.8 NO 651.2 0.0 58.1 NO CBIN10668 A3 CI1356 Curb Inlet 651.2 657.8 6.6 651.7 2.2 5.7 NO 651.8 3.5 8.8 NO 651.9 5.1 12.8 NO 652.0 5.7 14.4 NO CBIN10669 A3 CI1360 Curb Inlet 695.0 700.4 5.3 695.0 0.0 0.0 NO 695.0 0.0 0.0 NO 695.0 0.0 0.0 NO 695.0 0.0 0.0 NO INLT10301 A3 ZINL10961 Inlet 734.3 747.7 13.4 734.7 5.0 5.0 NO 734.9 12.1 12.1 NO 735.1 19.7 19.7 NO 747.7 22.9 22.9 NO CBIN10670 A3 CI1332 Curb Inlet 720.1 731.4 11.3 721.1 6.8 11.8 NO 721.9 11.9 23.9 NO 731.4 18.2 37.7 NO 731.5 20.8 44.9 NO CBIN10671 A3 CI1348 Curb Inlet 680.9 687.5 6.6 681.3 1.4 1.4 NO 681.4 2.2 2.2 NO 681.5 3.2 3.2 NO 681.6 3.7 3.7 NO CBIN10672 A3 CI1318 Curb Inlet 719.1 730.8 11.7 719.9 0.0 11.8 NO 720.4 0.0 24.0 NO 730.8 0.0 37.7 NO 730.9 0.0 55.5 NO CLEN10443 A3 ZCO11927 Cleanout 680.2 686.8 6.6 680.7 0.0 3.8 NO 680.9 0.0 6.0 NO 681.1 0.0 8.8 NO 681.1 0.0 10.0 NO CBIN10673 A3 CI1350 Curb Inlet 683.2 687.3 4.1 683.4 2.4 2.4 NO 683.5 3.9 3.9 NO 683.6 5.6 5.6 NO 683.6 6.4 6.4 NO CBIN10674 A3 CI1336 Curb Inlet 746.3 759.3 13.0 746.3 0.0 0.0 NO 746.3 0.0 0.0 NO 746.3 0.0 0.0 NO 746.3 0.0 0.0 NO CLEN10444 A3 ZCO10212 Cleanout 700.3 707.9 7.6 701.8 0.0 102.7 NO 702.4 0.0 177.1 NO 702.9 0.0 261.2 NO 703.2 0.0 297.6 NO CBIN10675 A3 CI1328 Curb Inlet 741.2 754.5 13.2 742.4 3.9 85.9 NO 742.8 6.1 145.6 NO 743.2 8.9 217.2 NO 743.4 10.0 247.6 NO CLEN10445 A3 ZCO11016 Cleanout 708.5 726.0 17.6 709.6 3.0 102.7 NO 709.9 4.7 177.1 NO 710.3 6.8 261.2 NO 710.4 7.6 297.5 NO CBIN10676 A3 CI1319 Curb Inlet 718.7 736.3 17.6 720.3 1.7 87.4 NO 720.8 2.6 147.9 NO 721.6 3.8 220.6 NO 736.3 4.3 252.4 NO CLEN10446 A3 ZCO11928 Cleanout 715.2 732.9 17.7 717.2 0.9 100.0 NO 718.0 1.4 172.9 NO 719.3 2.0 258.3 NO 732.9 2.3 319.7 NO CBIN10677 A3 CI1320 Curb Inlet 760.8 775.1 14.3 762.1 1.8 82.1 NO 762.5 2.8 139.6 NO 763.0 4.0 208.5 NO 763.2 4.5 237.8 NO INLT10302 A3 ZINL10213 Inlet 792.5 796.5 4.0 793.1 16.5 16.5 NO 793.3 29.2 29.2 NO 793.5 44.0 44.0 NO 793.5 50.2 50.2 NO INLT10303 A3 ZINL10214 Inlet 790.8 796.8 6.0 791.7 0.8 37.8 NO 792.0 1.4 66.8 NO 792.3 2.1 101.5 NO 792.5 2.4 115.8 NO CBIN10678 A3 CI0127 Curb Inlet 715.6 721.1 5.5 715.6 0.0 0.0 NO 715.6 0.0 0.0 NO 715.6 0.0 0.0 NO 715.6 0.0 0.0 NO CBIN10679 A3 CI1321 Curb Inlet 780.4 791.8 11.4 781.4 0.0 37.9 NO 781.8 0.0 67.0 NO 782.2 0.0 101.3 NO 782.4 0.0 115.9 NO CLEN10447 A3 ZCO12383 Cleanout 776.9 790.8 13.9 778.2 3.3 80.3 NO 778.6 5.5 136.6 NO 779.1 8.3 204.0 NO 779.3 9.4 232.9 NO CBIN10680 A3 CI0126 Curb Inlet 714.7 720.3 5.6 715.0 2.1 2.1 NO 715.1 3.2 3.2 NO 715.2 4.7 4.7 NO 715.3 5.2 5.2 NO CBIN10681 A3 CI0403 Curb Inlet 783.7 795.2 11.5 784.1 2.6 7.7 NO 784.3 4.3 12.4 NO 784.4 6.6 18.4 NO 784.4 7.5 20.8 NO CLEN10448 A3 ZCO10215 Cleanout 785.3 796.3 10.9 786.3 1.1 40.5 NO 786.5 1.8 66.0 NO 786.8 2.6 96.8 NO 787.0 2.9 110.8 NO CBIN10682 A3 CI0404 Curb Inlet 785.1 795.8 10.7 785.7 5.1 5.1 NO 785.9 8.1 8.1 NO 786.1 11.9 11.9 NO 786.2 13.4 13.4 NO CBIN10683 A3 CI10070 Curb Inlet 707.0 712.9 5.9 707.0 0.0 0.0 NO 707.0 0.0 0.0 NO 707.0 0.0 0.0 NO 707.0 0.0 0.0 NO INLT10304 A3 ZINL12938 Inlet 811.3 815.3 4.0 812.0 21.0 21.0 NO 812.2 37.0 37.0 NO 812.5 55.9 55.9 NO 812.6 63.7 63.7 NO CLEN10449 A3 ZCO11929 Cleanout 644.3 656.3 11.9 646.6 0.0 106.1 NO 647.3 0.0 168.8 NO 648.0 0.0 236.7 NO 648.4 0.0 263.8 NO CBIN10684 A3 CI10071 Curb Inlet 706.1 712.1 6.0 706.7 3.6 5.6 NO 706.8 5.8 8.8 NO 706.9 8.4 12.9 NO 707.0 9.5 14.6 NO CLEN10450 A3 CO14002 Cleanout 645.1 666.4 21.3 646.8 0.0 8.7 NO 666.4 0.0 13.6 NO 666.4 0.0 19.8 NO 666.4 0.0 22.3 NO CBIN10685 A3 CI0084 Curb Inlet 746.7 757.3 10.5 746.7 0.0 0.0 NO 746.7 0.0 0.0 NO 757.4 0.0 6.1 NO 758.2 0.0 6.9 NO CBIN10686 A3 CI0303 Curb Inlet 647.7 657.2 9.6 647.9 1.5 1.5 NO 648.4 2.4 2.4 NO 648.9 3.4 3.4 NO 649.2 3.9 3.9 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 45 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10451 A3 ZCO10216 Cleanout 645.9 657.0 11.1 647.7 0.0 96.7 NO 648.3 0.0 155.5 NO 648.9 0.0 217.6 NO 649.2 0.0 242.6 NO CBIN10687 A3 CI0085 Curb Inlet 745.3 755.9 10.6 746.1 10.0 10.0 NO 746.4 16.1 16.1 NO 756.2 23.7 28.7 NO 758.1 26.8 29.7 YES CBIN10688 A3 CI0301 Curb Inlet 653.3 657.3 4.0 653.5 3.4 3.4 NO 653.5 5.3 5.3 NO 653.6 7.6 7.6 NO 653.6 8.6 8.6 NO CBIN10689 A3 CI0114 Curb Inlet 660.5 667.2 6.6 661.0 2.8 8.7 NO 661.1 4.3 13.6 NO 661.2 6.2 19.8 NO 661.3 7.0 22.3 NO CBIN10690 A3 CI0115 Curb Inlet 661.8 668.2 6.4 661.8 0.0 0.0 NO 661.8 0.0 0.0 NO 661.8 0.0 0.0 NO 661.8 0.0 0.0 NO CBIN10691 A3 CI1316 Curb Inlet 808.4 819.3 11.0 809.3 1.1 40.2 NO 809.6 1.7 65.5 NO 809.8 2.4 96.0 NO 810.0 2.7 109.9 NO CBIN10692 A3 CI10724 Curb Inlet 736.2 746.1 9.8 737.0 0.0 9.8 NO 737.3 0.0 15.7 NO 746.1 0.0 23.9 NO 746.8 0.0 24.0 NO CBIN10693 A3 CI0086 Curb Inlet 729.3 738.9 9.6 729.3 0.0 0.0 NO 729.3 0.0 0.0 NO 738.9 0.0 7.8 NO 739.0 0.0 10.7 NO CBIN10694 A3 CI0128 Curb Inlet 692.3 698.1 5.8 692.9 2.7 8.0 NO 693.1 4.2 12.6 NO 693.3 6.2 18.4 NO 693.4 7.0 20.8 NO CLEN10452 A3 ZCO10962 Cleanout 652.9 665.8 12.9 654.5 0.0 92.0 NO 655.0 0.0 149.5 NO 655.5 0.0 208.1 NO 655.7 0.0 231.6 NO CBIN10695 A3 CI0087 Curb Inlet 727.5 738.2 10.7 728.4 5.7 15.1 NO 728.7 9.2 24.1 NO 738.3 13.5 43.4 NO 738.3 15.3 44.6 NO CLEN10453 A3 ZCO11930 Cleanout 824.0 837.2 13.2 825.0 1.4 39.8 NO 825.3 2.2 65.0 NO 825.7 3.1 95.3 NO 825.8 3.5 109.1 NO CBIN10696 A3 CI0305 Curb Inlet 670.8 676.6 5.7 671.2 4.9 4.9 NO 671.3 7.7 7.7 NO 671.4 11.3 11.3 NO 671.5 12.7 12.7 NO CBIN10697 A3 CI0121 Curb Inlet 675.8 682.1 6.3 676.1 1.6 1.6 NO 676.1 2.5 2.5 NO 676.2 3.6 3.6 NO 676.2 4.0 4.0 NO CBIN10698 A3 CI0122 Curb Inlet 671.5 680.5 9.0 672.0 1.7 6.1 NO 672.1 2.6 9.6 NO 672.3 3.7 13.9 NO 672.3 4.2 15.6 NO CBIN10699 A3 CI0304 Curb Inlet 666.4 675.5 9.1 666.6 0.0 0.0 NO 667.0 0.0 0.1 NO 667.3 0.0 0.1 NO 667.5 0.0 0.1 NO CBIN10700 A3 CI0129 Curb Inlet 684.7 691.6 6.9 685.2 3.7 3.7 NO 685.4 5.9 5.9 NO 685.5 8.6 8.6 NO 685.6 9.7 9.7 NO CBIN10701 A3 CI0130 Curb Inlet 683.3 691.1 7.8 684.3 0.0 11.5 NO 684.5 0.0 18.4 NO 684.8 0.0 26.8 NO 684.9 0.0 30.2 NO INLT10305 A3 ZINL11017 Inlet 834.2 840.8 6.7 835.2 39.3 39.3 NO 835.5 64.3 64.3 NO 835.9 94.5 94.5 NO 836.1 108.1 108.1 NO CBIN10702 A3 CI10073 Curb Inlet 720.6 731.2 10.6 721.4 1.8 16.7 NO 722.0 2.8 26.7 NO 731.2 4.1 40.4 NO 731.3 4.6 42.3 NO CLEN10454 A3 ZCO10217 Cleanout 685.1 690.9 5.8 685.4 0.0 3.0 NO 685.5 0.0 4.7 NO 685.6 0.0 6.8 NO 685.6 0.0 7.6 NO CLEN10455 A3 ZCO10218 Cleanout 681.8 688.7 7.0 683.1 0.0 86.2 NO 683.4 0.0 140.5 NO 683.8 0.0 195.0 NO 683.9 0.0 216.8 NO CBIN10703 A3 CI10074 Curb Inlet 736.3 746.7 10.4 736.7 3.2 3.2 NO 736.8 5.1 5.1 NO 737.0 7.4 7.4 NO 746.7 8.4 8.4 NO CBIN10704 A3 CI0141 Curb Inlet 735.1 746.7 11.6 735.8 5.6 8.8 NO 736.1 9.0 14.0 NO 736.4 13.1 20.5 NO 746.7 14.8 29.0 NO CBIN10705 A3 CI1323 Curb Inlet 805.0 815.7 10.7 805.0 0.0 0.0 NO 805.0 0.0 0.0 NO 805.0 0.0 0.0 NO 805.0 0.0 0.0 NO CBIN10706 A3 CI0123 Curb Inlet 697.9 705.1 7.2 698.3 1.6 1.6 NO 698.4 2.5 2.5 NO 698.5 3.6 3.6 NO 698.6 4.1 4.1 NO CBIN10707 A3 CI0120 Curb Inlet 696.9 702.6 5.7 697.2 1.4 3.0 NO 697.3 2.2 4.7 NO 697.4 3.2 6.8 NO 697.5 3.6 7.6 NO CBIN10708 A3 CI0306 Curb Inlet 690.8 697.2 6.4 691.0 2.3 2.3 NO 691.1 3.6 3.6 NO 691.5 5.2 5.2 NO 691.7 5.8 5.8 NO CBIN10709 A3 CI1324 Curb Inlet 802.7 814.3 11.5 803.4 5.2 12.1 NO 803.6 8.1 22.1 NO 803.8 11.7 33.7 NO 803.9 13.2 38.9 NO CLEN10456 A3 ZCO10220 Cleanout 705.3 714.9 9.5 714.9 0.0 35.6 NO 717.3 0.0 56.6 YES 722.5 0.0 61.1 YES 725.2 0.0 62.9 YES CBIN10710 A3 CI1322 Curb Inlet 820.0 831.1 11.1 820.5 0.0 7.3 NO 820.7 0.0 14.4 NO 820.8 0.0 22.6 NO 820.9 0.0 26.1 NO CBIN10711 A3 CI0088 Curb Inlet 701.9 712.4 10.4 702.6 2.9 2.9 NO 702.8 4.5 4.5 NO 703.0 6.6 6.6 NO 703.1 7.5 7.5 NO CBIN10712 A3 CI1376 Curb Inlet 708.9 719.7 10.8 709.4 1.2 1.2 NO 719.8 1.9 11.1 NO 723.0 2.8 10.6 YES 725.7 3.2 11.1 YES CBIN10713 A3 CI1337 Curb Inlet 788.1 798.5 10.4 788.8 1.6 13.5 NO 789.0 2.5 24.3 NO 789.2 3.7 37.1 NO 789.3 4.1 42.4 NO CBIN10714 A3 CI0312 Curb Inlet 695.0 700.3 5.3 695.2 2.1 2.1 NO 695.3 3.3 3.3 NO 695.4 4.7 4.7 NO 695.4 5.3 5.3 NO CBIN10715 A3 CI1375 Curb Inlet 707.7 717.7 10.1 709.3 3.1 15.3 NO 717.9 4.9 34.1 NO 723.0 7.2 36.8 YES 725.6 8.1 37.7 YES CBIN10716 A3 CI0089 Curb Inlet 701.4 710.7 9.3 702.4 2.7 36.0 NO 702.7 4.3 51.7 NO 702.8 6.3 62.1 NO 702.9 7.1 66.2 NO CLEN10457 A3 ZCO11933 Cleanout 694.9 704.0 9.1 696.3 0.0 71.1 NO 696.8 0.0 116.6 NO 697.2 0.0 160.1 NO 697.4 0.0 177.7 NO CBIN10717 A3 CI1325 Curb Inlet 777.5 787.6 10.1 777.9 3.4 3.4 NO 778.1 5.4 5.4 NO 778.2 7.8 7.8 NO 778.2 8.7 8.7 NO INLT10306 A3 ZINL10222 Inlet 830.3 834.3 4.0 830.8 7.3 7.3 NO 831.0 14.5 14.5 NO 831.2 22.7 22.7 NO 831.3 26.2 26.2 NO CBIN10718 A3 CI0140 Curb Inlet 724.6 735.9 11.4 725.2 2.6 11.2 NO 725.4 4.2 17.7 NO 726.0 6.1 26.0 NO 735.9 6.9 29.9 NO CBIN10719 A3 CI1338 Curb Inlet 773.8 786.1 12.2 774.7 1.6 26.2 NO 775.1 2.5 47.9 NO 775.4 3.7 73.3 NO 775.5 4.1 84.4 NO CBIN10720 A3 CI0308 Curb Inlet 706.2 713.4 7.2 706.2 0.0 0.0 NO 706.2 0.0 0.0 NO 706.2 0.0 0.0 NO 706.2 0.0 0.0 NO CBIN10721 A3 CI0307 Curb Inlet 702.7 711.6 8.9 703.6 5.4 36.9 NO 704.0 8.4 65.0 NO 704.3 12.2 98.2 NO 704.4 13.7 111.5 NO INLT10307 A3 ZINL11934 Inlet 785.0 790.3 5.3 785.5 4.0 8.2 NO 785.7 7.7 16.5 NO 785.9 12.0 25.9 NO 786.0 13.8 29.9 NO INLT10308 A3 ZINL12384 Inlet 790.2 800.2 9.9 790.6 4.2 4.2 NO 790.7 8.8 8.8 NO 790.9 13.9 13.9 NO 790.9 16.1 16.1 NO CBIN10722 A3 CI1317 Curb Inlet 763.6 775.1 11.4 764.4 1.2 27.4 NO 764.7 1.8 49.8 NO 765.0 2.7 76.1 NO 765.1 3.0 87.2 NO CBIN10723 A3 CI0309 Curb Inlet 718.2 725.8 7.6 719.1 0.0 32.4 NO 719.5 0.0 57.8 NO 719.8 0.0 87.6 NO 720.0 0.0 99.8 NO CLEN10458 A3 ZCO10225 Cleanout 624.8 639.1 14.2 627.5 0.0 169.2 NO 628.8 0.0 290.2 NO 639.4 0.0 478.1 NO 640.9 0.0 499.8 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 46 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN10724 A3 CI1329 Curb Inlet 745.1 758.0 12.9 745.9 1.3 28.5 NO 746.2 1.9 51.6 NO 746.4 2.8 78.8 NO 746.5 3.2 90.2 NO CBIN10725 A3 CI1326 Curb Inlet 728.0 742.7 14.6 728.6 4.3 4.3 NO 728.8 6.6 6.6 NO 729.0 9.6 9.6 NO 729.1 10.8 10.8 NO CBIN10726 A3 CI1327 Curb Inlet 725.1 738.6 13.5 726.3 0.0 32.5 NO 726.7 0.0 57.8 NO 727.3 0.0 87.8 NO 727.6 0.0 100.3 NO CBIN10727 A3 CI1355 Curb Inlet 645.6 650.1 4.5 645.6 0.0 0.0 NO 645.6 0.0 0.0 NO 645.6 0.0 0.0 NO 646.2 0.0 4.5 NO CBIN10728 A3 CI0300 Curb Inlet 594.9 606.5 11.6 596.4 0.0 39.1 NO 606.5 0.0 68.4 NO 607.0 0.0 88.0 NO 608.3 0.0 90.9 YES CLEN10459 A3 ZCO12386 Cleanout 587.3 597.5 10.1 591.1 0.0 322.1 NO 592.1 0.0 440.3 NO 597.6 0.0 535.6 NO 597.7 0.0 536.0 NO CBIN10729 A3 CI0390 Curb Inlet 588.7 601.1 12.5 591.1 4.1 4.1 NO 592.1 6.5 6.5 NO 599.0 9.6 9.6 NO 599.1 10.8 10.8 NO CLEN10460 A3 ZCO11629 Cleanout 583.9 594.1 10.2 587.7 0.0 325.2 NO 588.7 0.0 434.8 NO 594.3 0.0 532.8 NO 594.4 0.0 544.2 NO INLT10309 A3 INL025 Inlet 586.2 597.2 11.0 587.9 0.0 3.1 NO 597.2 0.0 5.3 NO 597.2 0.0 7.3 NO 597.2 0.0 8.3 NO CLEN10461 A3 ZCO10228 Cleanout 578.5 591.6 13.1 582.2 0.7 330.3 NO 583.5 1.1 444.4 NO 591.8 1.6 553.1 NO 591.7 1.8 561.9 NO CLEN10462 A3 ZCO11935 Cleanout 570.8 579.5 8.7 579.5 9.7 26.4 NO 579.5 17.1 37.1 NO 580.2 25.9 52.9 NO 581.1 29.5 59.3 YES CBIN10730 A3 CI0702 Curb Inlet 572.5 580.6 8.1 580.6 0.0 5.0 NO 580.6 0.0 4.6 NO 580.7 0.0 10.8 NO 581.1 0.0 9.2 NO CBIN10731 A3 CI0711 Curb Inlet 576.3 582.1 5.8 576.4 0.0 1.5 NO 576.7 0.0 1.3 NO 582.1 0.0 4.6 NO 582.1 0.0 4.1 NO INLT10310 A3 ZINL10229 Inlet 696.8 700.8 4.0 696.8 0.0 0.0 NO 696.8 0.0 0.0 NO 696.8 0.0 0.0 NO 696.8 0.0 0.0 NO CBIN10732 A3 CI0311 Curb Inlet 627.7 637.8 10.1 628.6 4.0 28.1 NO 629.4 6.8 45.4 NO 639.6 10.2 61.2 YES 642.1 11.7 67.6 YES CBIN10733 A3 CI0313 Curb Inlet 633.4 639.8 6.4 634.4 0.0 24.2 NO 634.8 0.0 38.9 NO 644.3 0.0 53.2 YES 647.1 0.0 55.7 YES CBIN10734 A3 CI1230 Curb Inlet 636.3 642.2 5.9 637.5 5.7 24.3 NO 638.2 9.2 39.3 NO 647.7 13.5 56.0 YES 650.8 15.3 56.4 YES CBIN10735 A3 CI0232 Curb Inlet 630.5 639.1 8.6 631.4 0.0 31.7 NO 631.7 0.0 49.7 NO 639.7 0.0 88.9 NO 641.2 0.0 96.1 YES INLT10311 A3 ZINL12387 Inlet 637.3 651.3 14.0 637.3 0.0 0.0 NO 637.3 0.0 0.0 NO 638.9 0.0 13.7 NO 651.3 0.0 12.4 NO OTHR10627 A3 ZOTHER10070Other 639.0 649.5 10.5 640.9 0.0 141.4 NO 641.7 0.0 246.1 NO 649.5 0.0 367.0 NO 649.6 0.0 388.1 NO CBIN10736 A3 CI0247 Curb Inlet 632.3 639.2 6.9 632.3 0.0 0.0 NO 632.3 0.0 0.0 NO 639.8 0.0 21.8 NO 641.0 0.0 21.4 YES INLT10312 A3 INL13208 Inlet 639.4 650.2 10.9 640.9 0.0 0.0 NO 641.7 0.0 0.0 NO 650.3 0.0 0.7 NO 650.3 0.0 0.7 NO CBIN10737 A3 CI0235 Curb Inlet 677.3 684.8 7.5 677.6 2.0 2.0 NO 677.7 3.2 3.2 NO 677.7 4.7 4.7 NO 677.8 5.3 5.3 NO CBIN10738 A3 CI0239 Curb Inlet 675.8 684.6 8.8 675.8 0.0 0.0 NO 675.8 0.0 0.0 NO 675.8 0.0 0.0 NO 675.8 0.0 0.0 NO OTHR10628 A3 ZOTHER10072Other 691.3 699.9 8.5 692.8 0.0 72.7 NO 693.2 0.0 119.4 NO 693.7 0.0 164.2 NO 693.9 0.0 182.2 NO OTHR10629 A3 ZOTHER10073Other 689.1 697.1 8.0 690.5 0.0 74.7 NO 691.0 0.0 122.5 NO 691.5 0.0 168.7 NO 691.7 0.0 187.2 NO CLEN10463 A3 ZCO10230 Cleanout 641.6 653.5 11.8 643.1 3.8 108.0 NO 643.5 6.3 174.7 NO 644.1 9.2 245.6 NO 644.7 10.5 273.8 NO CBIN10739 A3 CI0302 Curb Inlet 645.8 653.2 7.4 645.8 0.0 0.0 NO 645.8 0.0 0.0 NO 645.8 0.0 0.0 NO 645.8 0.0 0.0 NO OTHR10630 A3 ZOTHER10074Other 623.6 636.4 12.8 626.5 3.3 197.6 NO 628.1 5.3 337.8 NO 638.3 7.8 552.0 YES 640.1 8.8 529.2 YES CBIN10740 A3 CI0237 Curb Inlet 633.9 641.5 7.7 634.3 1.9 1.9 NO 634.6 2.9 2.9 NO 641.8 4.3 36.8 NO 641.9 4.8 32.1 NO CBIN10741 A3 CI0310 Curb Inlet 629.2 637.9 8.7 629.2 0.0 0.0 NO 629.2 0.0 0.0 NO 638.8 0.0 20.4 NO 640.3 0.0 17.7 YES OTHR10631 A3 ZOTHER10075Other 665.0 677.6 12.6 666.7 0.0 137.3 NO 667.3 0.0 239.3 NO 667.9 0.0 353.3 NO 669.8 0.0 412.0 NO INLT10313 A3 ZINL10231 Inlet 726.3 733.8 7.4 726.3 0.0 0.0 NO 726.3 0.0 0.0 NO 726.3 0.0 0.0 NO 726.3 0.0 0.0 NO INLT10314 A3 ZINL11936 Inlet 736.3 741.0 4.7 737.1 15.7 15.7 NO 737.5 30.6 30.6 NO 737.8 47.4 47.4 NO 738.0 54.4 54.4 NO INLT10315 A3 ZINL12809 Inlet 748.7 752.7 4.0 749.0 2.9 2.9 NO 749.0 5.1 5.1 NO 749.1 7.8 7.8 NO 749.1 8.9 8.9 NO CBIN10742 A3 CI0238 Curb Inlet 605.9 619.8 14.0 618.7 1.9 29.5 NO 619.7 3.0 59.5 NO 619.8 4.4 89.6 NO 619.4 5.0 71.6 NO INLT10316 A3 ZINL12388 Inlet 605.4 613.5 8.0 616.5 0.8 346.1 YES 618.1 1.4 613.2 YES 619.1 2.1 831.2 YES 619.3 2.4 862.7 YES CBIN10743 A3 CI10075 Curb Inlet 610.3 619.7 9.4 619.7 3.3 27.4 NO 619.8 5.3 46.8 NO 620.1 7.9 70.4 NO 619.7 8.9 66.8 NO CLEN10464 A3 ZCO10232 Cleanout 603.1 615.3 12.1 606.8 0.0 182.4 NO 608.6 0.0 192.5 NO 615.4 0.0 198.5 NO 615.3 0.0 200.5 NO CLEN10465 A3 ZCO10233 Cleanout 604.2 617.2 13.0 608.8 0.0 182.4 NO 617.2 0.0 192.4 NO 617.2 0.0 196.6 NO 617.3 0.0 198.3 NO CBIN10744 A3 CI1621 Curb Inlet 601.5 612.1 10.6 604.1 0.0 22.6 NO 605.2 0.0 37.4 NO 612.2 0.0 59.7 NO 612.2 0.0 71.7 NO CBIN10745 A3 CI1622 Curb Inlet 601.7 612.3 10.6 604.1 0.0 22.7 NO 605.3 0.0 37.4 NO 612.3 0.0 59.6 NO 612.3 0.0 71.8 NO CBIN10746 A3 CI0708 Curb Inlet 602.1 611.4 9.4 604.2 2.0 22.7 NO 605.4 3.3 37.2 NO 611.5 5.0 61.8 NO 611.8 5.7 67.7 NO CBIN10747 A3 CI0705 Curb Inlet 600.1 611.5 11.4 604.1 1.0 215.2 NO 605.0 1.6 256.4 NO 611.5 2.4 296.8 NO 611.6 2.8 288.7 NO CLEN10466 A3 ZCO12894 Cleanout 608.9 619.6 10.7 619.7 4.8 21.4 NO 619.7 7.7 36.2 NO 620.1 11.3 91.4 NO 620.1 12.8 96.4 NO CLEN10467 A3 ZCO11514 Cleanout 609.1 620.2 11.1 620.2 0.0 21.8 NO 620.2 0.0 24.2 NO 620.6 0.0 61.1 NO 620.6 0.0 80.9 NO CLEN10468 A3 ZCO10236 Cleanout 612.9 621.8 8.9 621.8 0.0 16.5 NO 621.8 0.0 27.5 NO 621.9 0.0 52.9 NO 621.9 0.0 57.1 NO CLEN10469 A3 ZCO10237 Cleanout 614.9 624.3 9.4 616.7 0.0 10.2 NO 624.3 0.0 17.2 NO 624.3 0.0 35.1 NO 624.3 0.0 37.1 NO CBIN10748 A3 CI0385 Curb Inlet 620.2 625.9 5.7 620.8 4.5 10.2 NO 621.0 7.0 17.1 NO 621.9 10.1 25.5 NO 626.0 11.3 29.9 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 47 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10470 A3 ZCO11630 Cleanout 616.0 625.5 9.4 616.9 0.0 10.2 NO 618.3 0.0 17.1 NO 625.5 0.0 31.1 NO 625.5 0.0 37.7 NO CBIN10749 A3 CI0383 Curb Inlet 619.7 625.8 6.1 620.1 6.7 6.7 NO 620.3 10.7 10.7 NO 625.8 15.7 15.7 NO 625.9 17.7 17.7 NO CLEN10471 A3 ZCO11631 Cleanout 629.5 637.2 7.7 630.0 0.0 5.9 NO 630.2 0.0 10.4 NO 630.4 0.0 15.7 NO 630.5 0.0 17.9 NO CLEN10472 A3 ZCO11938 Cleanout 645.3 651.5 6.2 645.7 6.0 6.0 NO 645.9 10.5 10.5 NO 646.1 15.8 15.8 NO 646.1 18.1 18.1 NO CBIN10750 A3 CI0082 Curb Inlet 646.1 650.3 4.1 646.1 0.0 0.0 NO 646.1 0.0 0.0 NO 646.1 0.0 0.0 NO 646.1 0.0 0.0 NO INLT10317 A3 ZINL10238 Inlet 653.1 665.1 12.0 653.1 0.0 0.0 NO 653.1 0.0 0.0 NO 653.1 0.0 0.0 NO 653.1 0.0 0.0 NO OTHR10632 A3 ZOTHER10076Other 665.2 675.4 10.2 666.6 1.8 91.9 NO 667.0 2.8 149.4 NO 667.3 4.1 207.9 NO 667.5 4.6 231.4 NO OTHR10633 A3 ZOTHER10077Other 665.9 676.0 10.1 667.2 0.0 90.3 NO 667.6 0.0 147.0 NO 668.0 0.0 204.4 NO 668.1 0.0 227.5 NO CBIN10751 A3 CI0101 Curb Inlet 571.7 580.8 9.2 575.6 2.6 11.1 NO 580.8 4.1 19.7 NO 580.9 5.9 32.1 NO 581.6 6.6 31.4 NO CBIN10752 A3 CI0388 Curb Inlet 583.6 593.9 10.3 584.2 5.3 5.3 NO 584.4 8.5 8.5 NO 593.9 12.5 12.5 NO 594.0 14.2 14.2 NO CBIN10753 A3 CI0712 Curb Inlet 596.5 606.2 9.7 597.5 0.0 0.1 NO 598.5 0.0 0.1 NO 606.2 0.0 0.8 NO 606.2 0.0 0.8 NO CLEN10473 A3 ZCO12391 Cleanout 578.1 586.2 8.2 579.3 0.0 29.8 NO 579.7 0.0 50.1 NO 580.2 0.0 75.4 NO 580.5 0.0 87.1 NO CBIN10754 A3 CI0105 Curb Inlet 576.5 584.2 7.7 577.5 0.0 29.8 NO 577.8 0.0 50.1 NO 578.1 0.0 75.5 NO 578.3 0.0 87.2 NO INLT10318 A3 INL120 Inlet 588.0 595.3 7.3 588.0 0.0 0.0 NO 588.0 0.0 0.0 NO 588.0 0.0 0.0 NO 588.0 0.0 0.0 NO CLEN10474 A3 ZCO11939 Cleanout 584.3 594.8 10.5 585.3 0.0 20.5 NO 585.7 0.0 35.4 NO 586.1 0.0 59.3 NO 586.5 0.0 71.8 NO CLEN10475 A3 ZCO10242 Cleanout 582.5 591.4 8.9 583.8 1.7 29.7 NO 584.3 2.8 50.1 NO 584.9 4.1 77.1 NO 585.3 4.6 88.2 NO INLT10319 A3 ZINL10243 Inlet 576.5 580.5 4.0 576.5 0.0 0.0 NO 576.5 0.0 0.0 NO 576.5 0.0 0.0 NO 576.5 0.0 0.0 NO OTLT10080 A3 OUT10220 Outlet 572.3 576.3 4.0 572.3 0.0 26.0 NO 572.3 0.0 43.9 NO 572.3 0.0 66.8 NO 572.3 0.0 76.5 NO CBIN10755 A3 CI0081 Curb Inlet 585.2 591.4 6.2 586.2 7.8 7.8 NO 591.5 12.8 12.8 NO 591.5 19.2 19.2 NO 591.5 21.8 21.8 NO OTHR10634 A3 ZOTHER10078Other 580.0 586.7 6.7 580.8 0.0 29.8 NO 581.0 0.0 50.1 NO 581.4 0.0 75.4 NO 581.5 0.0 88.2 NO CBIN10756 A3 CI0097 Curb Inlet 581.3 586.9 5.6 581.3 0.0 0.0 NO 581.3 0.0 0.0 NO 581.4 0.0 0.0 NO 581.5 0.0 0.1 NO CLEN10476 A3 ZCO10244 Cleanout 607.4 612.6 5.1 607.9 0.0 8.7 NO 608.1 0.0 14.8 NO 608.3 0.0 22.3 NO 608.4 0.0 25.3 NO CBIN10757 A3 CI0399 Curb Inlet 664.8 671.4 6.5 665.2 1.6 1.6 NO 665.4 2.5 2.5 NO 665.5 3.6 3.6 NO 665.5 4.1 4.1 NO CLEN10477 A3 ZCO11018 Cleanout 615.6 628.0 12.4 619.2 1.8 316.0 NO 628.1 2.9 524.6 NO 628.8 4.3 706.6 NO 630.2 4.8 746.0 YES CBIN10758 A3 CI0248 Curb Inlet 620.3 628.4 8.1 620.3 0.0 0.0 NO 628.4 0.0 2.0 NO 629.0 0.0 17.3 NO 630.2 0.0 10.4 YES CBIN10759 A3 CI0249 Curb Inlet 620.3 629.3 9.1 620.3 0.0 0.0 NO 629.4 0.0 10.7 NO 629.6 0.0 12.2 NO 630.3 0.0 11.5 NO OTHR10635 A3 ZOTHER10079Other 610.9 624.3 13.4 617.1 2.3 315.8 NO 624.4 3.7 553.6 NO 624.3 5.3 706.8 NO 625.2 6.0 747.9 NO INLT10320 A3 INL13209 Inlet 614.7 624.8 10.1 619.3 0.0 1.0 NO 624.8 0.0 0.9 NO 624.8 0.0 0.2 NO 625.2 0.0 1.1 NO CLEN10478 A3 ZCO10246 Cleanout 587.6 592.4 4.8 588.1 0.0 8.7 NO 588.3 0.0 14.8 NO 588.6 0.0 22.3 NO 588.8 0.0 25.3 NO CBIN10760 A3 CI0100 Curb Inlet 575.3 581.1 5.9 575.6 0.0 0.2 NO 578.0 0.0 4.9 NO 581.2 0.0 7.8 NO 581.6 0.0 7.9 NO CBIN10761 A3 CI0106 Curb Inlet 635.0 640.7 5.7 635.4 2.9 2.9 NO 635.5 4.6 4.6 NO 635.6 6.8 6.8 NO 635.7 7.6 7.6 NO CBIN10762 A3 CI0108 Curb Inlet 633.0 640.9 7.8 633.5 1.5 4.5 NO 633.6 2.5 7.1 NO 633.8 3.6 10.3 NO 633.8 4.1 11.7 NO CLEN10479 A3 ZCO12392 Cleanout 629.7 636.7 7.0 630.2 0.8 8.7 NO 630.4 1.9 14.9 NO 630.6 3.2 22.3 NO 630.7 3.7 25.4 NO CBIN10763 A3 CI0099 Curb Inlet 643.4 649.1 5.7 643.8 2.4 2.4 NO 643.9 3.9 3.9 NO 644.1 5.8 5.8 NO 644.1 6.6 6.6 NO CBIN10764 A3 CI0098 Curb Inlet 642.8 649.4 6.6 643.0 0.0 0.0 NO 643.1 0.0 0.0 NO 643.3 0.0 0.0 NO 643.3 0.0 0.0 NO CLEN10480 A3 ZCO10964 Cleanout 642.7 649.1 6.4 643.0 1.2 3.5 NO 643.1 2.1 5.9 NO 643.3 3.2 8.9 NO 643.3 3.6 10.1 NO INLT10321 A3 ZINL10965 Inlet 632.3 639.1 6.8 632.3 0.0 0.0 NO 632.3 0.0 0.0 NO 632.3 0.0 0.0 NO 632.3 0.0 0.0 NO CLEN10481 A3 ZCO11941 Cleanout 605.5 614.5 9.0 606.4 6.0 39.2 NO 606.8 9.5 66.4 NO 614.5 13.9 85.1 NO 614.6 15.7 92.0 NO CLEN10482 A3 ZCO11942 Cleanout 633.3 641.8 8.5 634.2 12.1 27.3 NO 634.7 19.6 47.8 NO 646.6 29.0 68.5 YES 649.5 32.8 69.4 YES CBIN10765 A3 CI0142 Curb Inlet 636.7 645.4 8.6 636.7 0.0 0.0 NO 636.7 0.0 0.0 NO 646.8 0.0 10.0 YES 649.5 0.0 10.5 YES CLEN10483 A3 ZCO10247 Cleanout 642.8 649.3 6.5 643.5 0.0 15.5 NO 643.8 0.0 28.7 NO 652.3 0.0 42.3 YES 655.9 0.0 45.5 YES OTHR10636 A3 ZOTHER10080Other 612.0 621.4 9.4 621.4 0.0 24.3 NO 621.5 0.0 48.5 NO 621.5 0.0 67.5 NO 621.4 0.0 58.8 NO CBIN10766 A3 CI1227 Curb Inlet 640.8 652.2 11.5 641.9 5.8 18.9 NO 642.5 9.5 30.9 NO 653.5 14.1 54.5 YES 656.8 16.0 55.2 YES CBIN10767 A3 CI1229 Curb Inlet 642.3 653.7 11.4 642.3 0.0 0.0 NO 642.5 0.0 0.1 NO 653.8 0.0 11.3 NO 656.9 0.0 13.3 YES CBIN10768 A3 CI1226 Curb Inlet 650.3 662.2 11.9 651.1 13.4 13.4 NO 651.3 21.9 21.9 NO 662.2 33.2 42.6 NO 662.3 37.8 48.1 NO CBIN10769 A3 CI1228 Curb Inlet 652.3 663.4 11.1 652.3 0.0 0.0 NO 652.3 0.0 0.0 NO 663.4 0.0 10.2 NO 663.5 0.0 9.9 NO CBIN10770 A3 CI1225 Curb Inlet 659.8 671.0 11.2 659.8 0.0 0.0 NO 659.8 0.0 0.0 NO 659.9 0.0 0.7 NO 660.7 0.0 2.8 NO CBIN10771 A3 CI1223 Curb Inlet 661.3 671.5 10.2 661.3 0.0 0.0 NO 661.3 0.0 0.0 NO 661.3 0.0 0.0 NO 661.3 0.0 0.0 NO CBIN10772 A3 CI1224 Curb Inlet 677.4 688.4 11.1 677.4 0.0 0.0 NO 677.4 0.0 0.0 NO 677.4 0.0 0.0 NO 677.4 0.0 0.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 48 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10322 A3 ZINL12393 Inlet 676.7 687.1 10.4 676.7 0.0 0.0 NO 676.7 0.0 0.0 NO 676.7 0.0 0.0 NO 676.7 0.0 0.0 NO INLT10323 A3 ZINL12394 Inlet 652.2 659.3 7.1 652.2 0.0 0.0 NO 652.2 0.0 0.0 NO 652.2 0.0 0.0 NO 652.2 0.0 0.0 NO CBIN10773 A3 CI0291 Curb Inlet 648.1 654.6 6.5 648.6 5.1 5.1 NO 648.9 10.1 10.1 NO 649.2 18.0 18.0 NO 649.3 20.5 20.5 NO CLEN10484 A3 ZCO11019 Cleanout 646.3 653.7 7.4 646.9 4.9 15.7 NO 647.1 7.8 27.4 NO 647.3 11.6 42.9 NO 647.4 13.1 50.5 NO CBIN10774 A3 CI0290 Curb Inlet 648.9 657.5 8.6 649.6 0.0 6.3 NO 649.9 0.0 10.0 NO 650.6 0.0 14.9 NO 657.5 0.0 16.9 NO CBIN10775 A3 CI0293 Curb Inlet 661.3 672.0 10.8 661.9 1.2 6.3 NO 662.1 1.9 10.1 NO 662.3 2.8 15.0 NO 662.4 3.1 16.9 NO CBIN10776 A3 CI0288 Curb Inlet 681.8 695.2 13.4 682.3 5.3 5.3 NO 682.4 8.5 8.5 NO 682.5 12.5 12.5 NO 682.6 14.2 14.2 NO CBIN10777 A3 CI0289 Curb Inlet 683.5 695.8 12.3 683.5 0.0 0.0 NO 683.5 0.0 0.0 NO 683.5 0.0 0.0 NO 683.5 0.0 0.0 NO OTHR10637 A3 ZOTHER10081Other 647.8 653.5 5.7 648.0 0.7 0.7 NO 648.0 1.3 1.3 NO 648.1 2.0 2.0 NO 648.1 2.3 2.3 NO INLT10324 A3 ZINL12395 Inlet 649.6 654.2 4.5 649.6 0.0 0.0 NO 649.6 0.0 0.0 NO 649.6 0.0 0.0 NO 649.6 0.0 0.0 NO CBIN10778 A3 CI0401 Curb Inlet 649.2 654.1 4.9 649.2 0.0 0.0 NO 649.2 0.0 0.0 NO 649.2 0.0 0.0 NO 649.2 0.0 0.0 NO INLT10325 A3 ZINL10248 Inlet 679.7 689.7 10.0 679.7 0.0 0.0 NO 679.7 0.0 0.0 NO 679.7 0.0 0.0 NO 679.7 0.0 0.0 NO CLEN10485 A3 ZCO10249 Cleanout 676.2 680.2 4.0 676.6 2.2 2.2 NO 676.7 4.4 4.4 NO 676.8 7.0 7.0 NO 676.9 8.0 8.0 NO CLEN10486 A3 ZCO11632 Cleanout 670.9 677.3 6.3 671.5 3.0 5.1 NO 671.8 5.6 9.9 NO 672.1 8.5 15.3 NO 677.3 9.8 17.6 NO CBIN10779 A3 CI0389 Curb Inlet 587.4 599.1 11.8 588.0 3.1 3.1 NO 599.2 5.0 5.0 NO 599.2 7.3 7.3 NO 599.2 8.2 8.2 NO CLEN10487 A3 ZCO12396 Cleanout 640.7 649.8 9.1 641.8 5.0 27.5 NO 642.1 7.8 43.0 NO 642.6 11.2 62.3 NO 649.8 12.6 71.7 NO CBIN10780 A3 CI1358 Curb Inlet 638.5 648.0 9.6 639.3 0.0 27.5 NO 639.5 0.0 43.1 NO 641.2 0.0 62.4 NO 648.1 0.0 70.3 NO CLEN10488 A3 ZCO10250 Cleanout 628.3 637.5 9.2 629.0 4.5 20.0 NO 629.2 7.4 34.4 NO 629.5 11.0 53.5 NO 629.6 12.5 61.6 NO CLEN10489 A3 ZCO10251 Cleanout 615.0 624.7 9.7 616.2 1.0 52.8 NO 616.7 1.5 88.0 NO 618.8 2.2 132.3 NO 624.7 2.4 144.7 NO INLT10326 A3 ZINL11515 Inlet 637.3 642.1 4.8 637.3 0.0 0.0 NO 637.3 0.0 0.0 NO 637.3 0.0 0.0 NO 637.3 0.0 0.0 NO CBIN10781 A3 CI0283 Curb Inlet 605.3 611.1 5.8 605.9 5.9 5.9 NO 606.0 9.5 9.5 NO 606.8 14.0 14.0 NO 611.2 15.9 15.9 NO CLEN10490 A3 ZCO11943 Cleanout 633.2 641.0 7.8 634.3 2.7 31.7 NO 634.6 4.1 49.6 NO 641.1 6.0 98.5 NO 641.9 6.7 97.5 NO CLEN10491 A3 ZCO11944 Cleanout 664.2 670.9 6.8 664.5 0.0 1.6 NO 664.7 0.0 2.5 NO 664.8 0.0 3.6 NO 664.8 0.0 4.1 NO CLEN10492 A3 ZCO12397 Cleanout 660.6 667.7 7.1 661.8 3.4 17.2 NO 662.0 5.2 27.0 NO 662.3 7.6 39.2 NO 662.4 8.5 43.9 NO CBIN10782 A3 CI0400 Curb Inlet 664.3 668.3 4.0 664.3 0.0 0.0 NO 664.3 0.0 0.0 NO 664.3 0.0 0.0 NO 664.3 0.0 0.0 NO CLEN10493 A3 ZCO12398 Cleanout 654.3 662.2 7.9 655.1 0.0 17.2 NO 655.3 0.0 26.9 NO 655.5 0.0 38.9 NO 655.6 0.0 43.8 NO CBIN10783 A3 CI0398 Curb Inlet 656.3 663.1 6.8 656.3 0.0 0.0 NO 656.3 0.0 0.0 NO 656.3 0.0 0.0 NO 656.3 0.0 0.0 NO CBIN10784 A3 CI1352 Curb Inlet 670.4 676.7 6.4 671.1 5.6 12.4 NO 671.2 8.9 19.4 NO 671.5 12.9 28.5 NO 671.5 14.5 31.9 NO CBIN10785 A3 CI1349 Curb Inlet 671.3 677.3 6.1 671.3 0.0 0.0 NO 671.3 0.0 0.0 NO 671.5 0.0 0.1 NO 671.6 0.0 0.1 NO CBIN10786 A3 CI0386 Curb Inlet 674.1 680.7 6.6 674.7 0.0 7.0 NO 674.8 0.0 11.0 NO 675.0 0.0 15.7 NO 675.0 0.0 18.2 NO CBIN10787 A3 CI1351 Curb Inlet 675.1 680.9 5.8 675.9 3.3 6.9 NO 676.1 5.1 11.1 NO 676.7 7.4 16.1 NO 680.9 8.3 18.1 NO OTHR10638 A3 ZOTHER10082Other 614.4 621.5 7.1 616.6 0.0 17.5 NO 621.6 0.0 35.9 NO 621.7 0.0 50.1 NO 621.9 0.0 48.0 NO CLEN10494 A3 ZCO11945 Cleanout 616.8 625.2 8.4 617.9 6.2 16.5 NO 625.2 10.4 27.6 NO 625.2 15.8 40.1 NO 625.6 18.1 42.0 NO CBIN10788 A3 CI0391 Curb Inlet 619.3 626.7 7.4 620.2 6.6 10.3 NO 626.7 10.9 18.5 NO 627.5 16.2 26.3 NO 629.5 18.4 26.1 YES CBIN10789 A3 CI0394 Curb Inlet 620.0 626.2 6.2 620.7 3.8 3.8 NO 626.2 6.1 6.1 NO 627.8 9.1 9.1 YES 629.8 10.4 10.4 YES CBIN10790 A3 CI0392 Curb Inlet 614.7 621.5 6.7 616.8 1.1 1.1 NO 621.6 1.8 9.8 NO 621.8 2.6 11.7 NO 622.0 2.9 8.0 NO CBIN10791 A3 CI0286 Curb Inlet 620.3 626.6 6.3 620.3 0.0 0.0 NO 620.4 0.0 0.8 NO 626.6 0.0 6.0 NO 626.6 0.0 5.8 NO CBIN10792 A3 CI0287 Curb Inlet 620.9 626.8 5.9 620.9 0.0 0.0 NO 620.9 0.0 0.0 NO 626.8 0.0 4.2 NO 626.9 0.0 4.8 NO CLEN10495 A3 ZCO10966 Cleanout 616.2 623.3 7.1 616.9 1.2 6.9 NO 623.3 1.9 11.6 NO 623.4 2.7 18.1 NO 624.1 3.0 17.6 NO CBIN10793 A3 CI0285 Curb Inlet 621.0 627.5 6.6 621.6 5.8 5.8 NO 621.9 9.5 9.5 NO 627.6 14.2 18.8 NO 628.0 16.1 19.2 NO CBIN10794 A3 CI0284 Curb Inlet 621.8 628.5 6.7 621.8 0.0 0.0 NO 621.9 0.0 0.1 NO 628.5 0.0 5.8 NO 628.5 0.0 5.3 NO CBIN10795 A3 CI0111 Curb Inlet 624.6 631.6 6.9 625.0 3.0 3.0 NO 625.1 4.8 4.8 NO 625.2 7.0 7.0 NO 625.3 7.9 7.9 NO CLEN10496 A3 ZCO12399 Cleanout 609.3 616.5 7.1 609.9 3.1 6.1 NO 610.1 4.9 9.5 NO 615.8 7.1 14.2 NO 616.5 8.0 22.6 NO CBIN10796 A3 CI0110 Curb Inlet 608.2 616.2 8.0 608.8 0.0 6.0 NO 609.0 0.0 9.5 NO 616.2 0.0 15.2 NO 616.3 0.0 21.5 NO CBIN10797 A3 CI0107 Curb Inlet 609.6 616.3 6.8 609.9 0.0 0.0 NO 610.1 0.0 0.0 NO 616.4 0.0 3.8 NO 616.4 0.0 8.9 NO CBIN10798 A3 CI0143 Curb Inlet 641.8 646.6 4.8 641.8 0.0 0.0 NO 641.8 0.0 0.0 NO 646.8 0.0 4.6 NO 649.5 0.0 5.4 YES CLEN10497 A3 ZCO10252 Cleanout 667.3 674.5 7.2 668.0 2.4 7.4 NO 668.2 4.1 13.8 NO 668.5 6.1 21.1 NO 674.6 7.0 27.2 NO CBIN10799 A3 CI0397 Curb Inlet 668.3 672.4 4.0 668.3 0.0 0.0 NO 668.3 0.0 0.0 NO 668.5 0.0 0.1 NO 672.5 0.0 6.9 NO CBIN10800 A3 CI0118 Curb Inlet 660.6 667.9 7.3 661.3 5.7 12.6 NO 661.6 9.4 22.4 NO 667.9 13.9 36.9 NO 668.2 15.7 40.3 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 49 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN10801 A3 CI0119 Curb Inlet 661.5 669.0 7.5 661.5 0.0 0.0 NO 661.6 0.0 0.0 NO 669.0 0.0 4.1 NO 669.1 0.0 8.1 NO CLEN10498 A3 ZCO12400 Cleanout 658.7 666.1 7.4 659.4 3.0 15.5 NO 659.7 6.4 28.7 NO 666.1 10.1 45.6 NO 666.9 11.6 50.9 NO CBIN10802 A3 CI0395 Curb Inlet 615.0 620.8 5.9 615.0 0.0 0.0 NO 615.0 0.0 0.0 NO 615.0 0.0 0.1 NO 615.0 0.0 0.8 NO CBIN10803 A3 CI0396 Curb Inlet 611.5 620.9 9.4 612.9 8.2 20.8 NO 613.6 13.6 34.8 NO 617.1 20.5 49.6 NO 620.9 23.4 54.3 NO CLEN10499 A3 ZCO10967 Cleanout 610.8 622.9 12.0 611.4 0.0 20.9 NO 611.6 0.0 34.0 NO 612.2 0.0 49.6 NO 612.8 0.0 54.3 NO INLT10327 A3 ZINL12401 Inlet 649.3 655.3 6.0 649.3 0.0 0.0 NO 649.3 0.0 0.0 NO 649.3 0.0 0.0 NO 649.3 0.0 0.0 NO CLEN10500 A3 ZCO10253 Cleanout 640.4 647.7 7.3 641.0 2.5 10.5 NO 641.2 3.9 16.9 NO 641.5 5.7 24.8 NO 641.7 6.5 28.1 NO CLEN10501 A3 ZCO10254 Cleanout 626.7 631.9 5.3 627.3 0.0 10.4 NO 627.5 0.0 16.8 NO 628.4 0.0 24.8 NO 632.4 0.0 27.6 NO CLEN10502 A3 ZCO10255 Cleanout 614.2 621.4 7.2 615.2 2.5 12.9 NO 621.4 4.0 20.6 NO 621.4 5.7 29.2 NO 621.7 6.4 32.1 NO CBIN10804 A3 CI0402 Curb Inlet 645.3 652.5 7.2 645.8 7.3 7.3 NO 646.0 11.7 11.7 NO 646.1 17.2 17.2 NO 646.2 19.4 19.4 NO CBIN10805 A3 CI0241 Curb Inlet 611.3 620.7 9.4 620.7 3.3 3.9 NO 620.3 5.1 5.1 NO 620.9 7.5 14.1 NO 620.9 8.5 13.8 NO CBIN10806 A3 CI0240 Curb Inlet 611.8 622.0 10.2 622.0 0.0 2.4 NO 620.6 0.0 0.5 NO 622.1 0.0 9.8 NO 622.1 0.0 9.5 NO CLEN10503 A3 ZCO11946 Cleanout 597.4 607.8 10.4 600.3 0.0 215.2 NO 600.7 0.0 255.2 NO 607.8 0.0 282.3 NO 607.9 0.0 286.8 NO OTHR10639 A3 ZOTHER10083Other 594.7 605.5 10.8 597.5 0.0 215.2 NO 598.5 0.0 255.5 NO 605.6 0.0 307.2 NO 605.8 0.0 307.9 NO CLEN10504 A3 ZCO10256 Cleanout 589.0 601.6 12.6 594.2 1.3 317.9 NO 601.6 2.0 450.9 NO 601.9 2.9 553.3 NO 602.2 3.3 535.9 NO CBIN10807 A3 CI10851 Curb Inlet 591.1 606.0 15.0 594.6 6.7 70.6 NO 606.1 10.9 126.3 NO 606.0 16.2 169.8 NO 606.1 18.4 181.8 NO CLEN10505 A3 ZCO10257 Cleanout 600.1 610.4 10.3 601.7 2.1 56.5 NO 602.2 3.3 94.0 NO 610.5 4.7 137.7 NO 610.5 5.3 149.3 NO CLEN10506 A3 ZCO11516 Cleanout 597.9 609.0 11.1 599.5 2.6 59.0 NO 600.1 4.1 97.8 NO 609.0 5.9 175.7 NO 609.1 6.6 194.5 NO CBIN10808 A3 CI0296 Curb Inlet 600.8 609.1 8.3 600.8 0.0 0.0 NO 600.8 0.0 0.0 NO 609.3 0.0 21.7 NO 609.4 0.0 22.5 NO CBIN10809 A3 CI0295 Curb Inlet 604.6 609.7 5.1 604.6 0.0 0.0 NO 604.6 0.0 0.0 NO 609.7 0.0 7.2 NO 609.7 0.0 8.7 NO CBIN10810 A3 CI0294 Curb Inlet 613.9 618.9 5.0 613.9 0.0 0.0 NO 613.9 0.0 0.0 NO 618.9 0.0 7.1 NO 619.1 0.0 11.3 NO CLEN10507 A3 ZCO10258 Cleanout 609.5 618.0 8.5 610.9 2.0 54.6 NO 611.4 3.1 90.9 NO 618.0 4.5 141.4 NO 618.6 5.1 156.8 NO CLEN10508 A3 ZCO10259 Cleanout 596.3 607.9 11.6 597.6 0.0 64.7 NO 598.8 0.0 107.1 NO 607.9 0.0 166.1 NO 608.0 0.0 184.8 NO CBIN10811 A3 CI0299 Curb Inlet 599.8 605.3 5.5 599.8 0.0 0.0 NO 600.0 0.0 3.5 NO 605.4 0.0 8.8 NO 605.6 0.0 10.7 NO CLEN10509 A3 ZCO11633 Cleanout 601.6 610.0 8.4 602.2 0.0 5.9 NO 602.4 0.0 9.4 NO 610.1 0.0 17.4 NO 610.0 0.0 23.1 NO CBIN10812 A3 CI10185 Curb Inlet 633.1 639.2 6.1 633.5 2.3 2.3 NO 633.6 3.8 3.8 NO 633.7 5.6 5.6 NO 633.7 6.4 6.4 NO CBIN10813 A3 CI0725 Curb Inlet 627.4 640.1 12.6 628.2 24.2 29.2 NO 628.4 40.5 48.8 NO 628.7 62.7 75.2 NO 628.8 71.7 85.9 NO SEPR10007 A3 ZSEP10008 Separator 632.6 639.9 7.3 632.6 0.0 0.0 NO 632.6 0.0 0.0 NO 632.6 0.0 0.0 NO 632.6 0.0 0.0 NO SEPR10008 A3 ZSEP10009 Separator 629.4 636.2 6.8 629.7 0.0 3.0 NO 629.8 0.0 5.0 NO 629.9 0.0 7.5 NO 629.9 0.0 8.5 NO CBIN10814 A3 ZCI10186 Curb Inlet 637.0 643.8 6.8 637.0 0.0 0.0 NO 637.0 0.0 0.0 NO 637.0 0.0 0.0 NO 637.0 0.0 0.0 NO CBIN10815 A3 ZCI10187 Curb Inlet 638.2 644.0 5.8 638.2 0.0 0.0 NO 638.2 0.0 0.0 NO 638.2 0.0 0.0 NO 638.2 0.0 0.0 NO INLT10328 A3 ZINL12486 Inlet 632.5 636.5 4.0 633.0 0.0 3.0 NO 633.1 0.0 5.0 NO 633.2 0.0 7.5 NO 633.2 0.0 8.6 NO CBIN10816 A3 ZCI10188 Curb Inlet 638.6 643.7 5.1 639.0 3.1 3.1 NO 639.1 5.1 5.1 NO 639.2 7.6 7.6 NO 639.2 8.7 8.7 NO CBIN10817 A3 ZCI10189 Curb Inlet 640.0 644.0 4.0 640.0 0.0 0.0 NO 640.0 0.0 0.0 NO 640.0 0.0 0.0 NO 640.0 0.0 0.0 NO CBIN10818 A3 CI0724 Curb Inlet 597.9 612.5 14.7 599.0 1.3 33.2 NO 599.4 2.0 54.9 NO 600.4 2.9 84.1 NO 612.5 3.3 98.2 NO OTHR10640 A3 ZOTHER10173Other 628.8 637.5 8.7 629.1 0.0 3.0 NO 629.2 0.0 5.0 NO 629.3 0.0 7.5 NO 629.3 0.0 8.5 NO CLEN10510 A3 ZCO10443 Cleanout 572.5 577.8 5.3 577.8 17.7 82.8 NO 581.9 28.6 124.2 YES 588.7 42.4 152.0 YES 591.4 48.4 162.7 YES CLEN10511 A3 ZCO11694 Cleanout 570.2 575.8 5.6 574.4 0.0 79.7 NO 576.8 0.0 115.2 YES 580.6 0.0 145.0 YES 582.1 0.0 155.7 YES CLEN10512 A3 ZCO10444 Cleanout 547.7 552.7 4.9 555.3 2.3 44.8 YES 563.8 3.6 58.0 YES 575.7 5.3 72.6 YES 581.5 6.0 78.9 YES CLEN10513 A3 ZCO10445 Cleanout 543.6 547.6 4.0 547.6 0.0 50.4 NO 550.6 0.0 63.5 YES 555.1 0.0 79.5 YES 557.1 0.0 86.4 YES CLEN10514 A3 ZCO11533 Cleanout 543.5 552.8 9.3 546.7 8.8 60.2 NO 552.8 14.1 108.5 NO 552.9 20.8 120.5 NO 552.9 23.5 123.4 NO CLEN10515 A3 ZCO11706 Cleanout 591.0 596.5 5.6 595.6 0.0 4.9 NO 594.6 0.0 6.8 NO 595.6 0.0 8.8 NO 596.3 0.0 9.6 NO CBIN10819 A3 CI0683 Curb Inlet 595.9 601.0 5.1 597.3 2.6 27.5 NO 598.2 4.3 48.6 NO 601.0 6.4 76.3 NO 601.1 7.3 88.1 NO CBIN10820 A3 CI0434 Curb Inlet 591.8 595.8 4.0 598.5 2.6 2.6 YES 604.8 4.4 4.4 YES 613.7 6.6 6.6 YES 618.3 7.5 7.5 YES CLEN10516 A3 ZCO11707 Cleanout 591.8 603.0 11.2 592.6 0.0 7.3 NO 593.0 0.0 12.1 NO 603.0 0.0 18.5 NO 603.0 0.0 18.2 NO OTLT10081 A3 ZOUT10009 Outlet 571.1 575.1 4.0 573.0 60.6 60.6 NO 573.3 100.4 100.4 NO 573.7 149.4 149.4 NO 573.8 171.5 171.5 NO CLEN10517 A3 ZCO11885 Cleanout 543.4 547.6 4.3 544.1 0.0 8.2 NO 544.5 0.0 13.2 NO 545.7 0.0 20.6 NO 547.6 0.0 23.6 NO INLT10329 A3 ZINL12520 Inlet 571.3 577.3 6.0 573.0 0.0 0.1 NO 573.3 0.0 0.1 NO 573.7 0.0 0.1 NO 573.8 0.0 0.0 NO INLT10330 A3 INL110 Inlet 544.4 548.4 4.0 545.5 8.2 8.2 NO 545.8 13.3 13.3 NO 548.4 19.8 19.8 NO 548.4 22.5 22.5 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 50 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10641 A3 ZOTHER10235Other 543.2 550.3 7.1 545.3 15.4 82.5 NO 546.1 25.7 139.2 NO 546.2 39.3 168.3 NO 546.2 45.1 178.1 NO INLT10331 A3 INL12818 Inlet 575.8 579.8 4.0 577.1 0.0 26.7 NO 577.5 0.0 42.1 NO 578.9 0.0 63.1 NO 580.0 0.0 84.7 NO OTLT10082 A3 OUT10246 Outlet 572.0 576.0 4.0 573.1 0.0 26.7 NO 573.3 0.0 42.1 NO 573.6 0.0 58.8 NO 573.7 0.0 65.0 NO OTLT10083 A3 OUT058 Outlet 594.9 598.9 4.0 596.1 0.0 27.4 NO 596.5 0.0 49.9 NO 596.9 0.0 76.3 NO 597.0 0.0 87.6 NO INLT10332 A3 ZINL11471 Inlet 546.5 550.5 4.0 546.5 0.0 0.0 NO 546.5 0.0 0.0 NO 546.5 0.0 0.0 NO 546.5 0.0 0.0 NO CBIN10821 A3 CI0852 Curb Inlet 573.5 579.0 5.4 577.0 30.7 74.1 NO 583.1 50.8 128.2 YES 590.4 76.8 143.4 YES 593.3 87.5 152.4 YES CBIN10822 A3 CI0853 Curb Inlet 572.5 577.6 5.1 577.6 0.0 1.9 NO 581.9 0.0 11.1 YES 588.7 0.0 12.2 YES 591.4 0.0 11.2 YES CBIN10823 A3 CI0002 Curb Inlet 596.3 601.6 5.3 596.6 0.0 0.0 NO 597.0 0.0 0.1 NO 602.0 0.0 2.5 NO 603.4 0.0 3.3 YES CBIN10824 A3 CI0210 Curb Inlet 547.7 551.7 4.0 552.2 15.1 15.1 NO 557.9 25.8 25.8 YES 566.6 39.2 39.2 YES 571.2 44.9 44.9 YES CBIN10825 A3 CI0205 Curb Inlet 545.9 550.5 4.6 551.7 0.0 49.4 YES 557.8 0.0 63.3 YES 566.3 0.0 80.0 YES 570.5 0.0 87.9 YES CBIN10826 A3 CI0208 Curb Inlet 543.2 547.2 4.0 543.8 0.0 0.5 NO 544.9 0.0 0.3 NO 546.3 0.0 0.3 NO 546.7 0.0 0.4 NO CBIN10827 A3 CI0207 Curb Inlet 541.6 546.6 4.9 543.9 3.3 51.7 NO 544.9 5.2 64.4 NO 546.2 7.7 80.7 NO 546.7 8.6 87.8 NO CBIN10828 A3 CI1300 Curb Inlet 543.9 552.4 8.5 548.0 0.0 30.1 NO 552.5 0.0 48.6 NO 553.7 0.0 66.5 YES 554.2 0.0 69.1 YES CBIN10829 A3 CI1301 Curb Inlet 543.9 551.6 7.8 548.5 26.3 52.4 NO 552.3 43.2 90.8 NO 553.4 65.2 92.4 YES 553.9 74.3 94.8 YES CBIN10830 A3 CI0754 Curb Inlet 543.3 550.3 6.9 545.5 0.0 0.1 NO 546.1 0.0 0.1 NO 546.2 0.0 0.0 NO 546.2 0.0 0.0 NO OTHR10642 A3 ZOTHER10240Other 571.9 577.0 5.1 577.0 0.0 81.3 NO 580.6 0.0 118.0 YES 586.6 0.0 146.9 YES 589.0 0.0 158.1 YES CBIN10831 A3 CI0684 Curb Inlet 597.3 601.3 4.0 598.7 26.2 26.2 NO 599.3 46.6 46.6 NO 602.0 75.0 75.0 NO 603.6 86.6 86.6 YES CBIN10832 A3 CI0433 Curb Inlet 591.6 595.6 4.0 598.3 4.8 6.1 YES 604.3 8.0 9.5 YES 612.9 12.0 13.6 YES 617.3 13.6 15.3 YES CBIN10833 A3 CI0001 Curb Inlet 595.8 600.6 4.8 596.6 7.3 7.3 NO 597.0 12.3 12.3 NO 602.0 18.3 19.9 YES 603.4 20.7 20.7 YES INLT10333 A3 ZINL11451 Inlet 602.3 606.3 4.0 604.3 0.0 33.3 NO 607.0 0.0 58.7 NO 607.8 0.0 89.5 YES 607.8 0.0 102.0 YES CBIN10834 A3 CI0633 Curb Inlet 609.5 616.8 7.3 610.3 1.8 33.3 NO 610.6 3.1 58.9 NO 610.9 4.7 89.2 NO 611.0 5.3 102.0 NO CBIN10835 A3 CI0634 Curb Inlet 628.0 636.3 8.3 628.8 8.2 29.1 NO 629.1 14.6 51.7 NO 629.4 22.2 78.3 NO 629.6 25.3 89.6 NO CLEN10518 A3 ZCO10468 Cleanout 666.1 674.7 8.6 666.3 0.0 2.1 NO 666.4 0.0 3.3 NO 666.4 0.0 4.9 NO 666.4 0.0 5.5 NO CBIN10836 A3 CI0592 Curb Inlet 666.7 673.0 6.3 667.1 1.2 1.2 NO 667.2 1.9 1.9 NO 667.3 2.7 2.7 NO 667.3 3.1 3.1 NO CLEN10519 A3 ZCO11047 Cleanout 683.1 693.3 10.2 683.3 0.0 1.0 NO 683.3 0.0 1.6 NO 683.4 0.0 2.3 NO 683.4 0.0 2.6 NO CLEN10520 A3 CO0590 Cleanout 684.2 691.0 6.8 684.5 1.0 1.0 NO 684.6 1.6 1.6 NO 684.7 2.3 2.3 NO 684.7 2.6 2.6 NO INLT10334 A3 ZINL10469 Inlet 682.3 686.3 4.0 682.7 6.6 6.6 NO 682.9 13.4 13.4 NO 683.2 21.1 21.1 NO 683.5 24.4 24.4 NO CBIN10837 A3 ZCI10704 Curb Inlet 680.7 690.2 9.5 681.6 4.4 11.0 NO 682.0 8.1 21.4 NO 682.8 12.3 33.4 NO 683.3 14.0 38.5 NO CBIN10838 A3 CI0591 Curb Inlet 679.9 689.9 10.0 680.5 0.0 11.0 NO 680.8 0.0 21.5 NO 681.1 0.0 33.4 NO 681.3 0.0 38.5 NO CBIN10839 A3 CI0631 Curb Inlet 634.7 641.5 6.9 635.7 5.2 19.8 NO 636.1 8.1 35.7 NO 636.5 11.6 54.2 NO 636.7 13.1 62.0 NO CBIN10840 A3 CI0630 Curb Inlet 635.9 641.9 6.0 635.9 0.0 0.0 NO 636.1 0.0 0.1 NO 636.5 0.0 0.1 NO 636.7 0.0 0.1 NO CBIN10841 A3 CI0627 Curb Inlet 669.3 674.9 5.5 669.8 2.7 13.5 NO 670.0 4.5 25.7 NO 670.2 6.7 39.7 NO 670.3 7.6 45.6 NO CBIN10842 A3 CI0628 Curb Inlet 646.2 654.8 8.6 646.8 0.0 13.5 NO 647.1 0.0 25.7 NO 647.3 0.0 39.7 NO 647.4 0.0 45.6 NO CBIN10843 A3 CI0629 Curb Inlet 640.3 646.8 6.5 641.1 1.7 15.1 NO 641.4 2.6 28.1 NO 641.6 3.8 43.3 NO 641.7 4.2 49.7 NO CBIN10844 A3 CI0632 Curb Inlet 611.4 616.4 5.0 611.8 2.9 2.9 NO 611.9 4.9 4.9 NO 612.0 7.2 7.2 NO 612.0 8.2 8.2 NO SEPR10009 A3 ZSEP10013 Separator 605.3 614.5 9.2 606.1 0.0 33.3 NO 607.3 0.0 58.9 NO 608.4 0.0 89.2 NO 608.5 0.0 102.0 NO CLEN10521 A3 ZCO12533 Cleanout 692.3 703.6 11.4 693.3 13.3 42.3 NO 693.8 24.5 84.8 NO 694.2 37.6 127.1 NO 694.3 43.1 138.8 NO INLT10335 A3 INL117 Inlet 693.3 699.6 6.3 693.3 0.0 0.0 NO 693.8 0.0 0.1 NO 694.2 0.0 1.4 NO 694.3 0.0 1.8 NO INLT10336 A3 INL116 Inlet 699.1 705.1 6.0 699.6 11.1 11.1 NO 699.8 20.5 20.5 NO 700.0 31.4 31.4 NO 700.0 36.0 36.0 NO CLEN10522 A3 ZCO10473 Cleanout 697.8 709.2 11.4 699.1 0.0 34.4 NO 699.9 0.0 71.6 NO 709.2 0.0 106.3 NO 709.2 0.0 114.5 NO CLEN10523 A3 ZCO10474 Cleanout 714.3 723.6 9.3 715.3 3.2 34.5 NO 715.9 6.0 71.6 NO 723.6 9.2 112.4 NO 725.3 10.6 122.7 YES INLT10337 A3 ZINL11712 Inlet 715.3 721.9 6.6 716.4 23.0 23.0 NO 717.1 48.2 48.2 NO 723.4 75.9 75.9 YES 727.3 88.2 88.2 YES CLEN10524 A3 ZCO11713 Cleanout 730.6 739.1 8.5 731.3 0.0 11.9 NO 731.9 0.0 25.8 NO 740.7 0.0 29.5 YES 745.1 0.0 30.8 YES CLEN10525 A3 ZCO11714 Cleanout 746.4 757.2 10.8 747.2 12.0 12.0 NO 757.3 26.0 32.5 NO 769.6 41.3 41.3 YES 776.2 47.8 47.8 YES INLT10338 A3 ZINL12534 Inlet 754.3 766.7 12.4 754.3 0.0 0.0 NO 755.5 0.0 7.0 NO 769.7 0.0 7.9 YES 776.2 0.0 9.4 YES CLEN10526 A3 ZCO10490 Cleanout 581.4 585.4 4.0 582.0 0.0 2.7 NO 582.2 0.0 4.3 NO 582.4 0.0 6.3 NO 582.5 0.0 7.1 NO INLT10339 A3 ZINL12035 Inlet 583.0 587.0 4.1 583.0 0.0 0.0 NO 583.0 0.0 0.0 NO 583.0 0.0 0.0 NO 583.0 0.0 0.0 NO INLT10340 A3 ZINL12554 Inlet 581.8 585.8 4.0 582.0 0.0 0.0 NO 582.2 0.0 0.0 NO 582.4 0.0 0.0 NO 582.5 0.0 0.1 NO CBIN10845 A3 CI10258 Curb Inlet 582.6 587.0 4.5 583.0 0.0 2.9 NO 583.1 0.0 4.6 NO 583.2 0.0 6.6 NO 583.3 0.0 7.4 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 51 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN10846 A3 CI10259 Curb Inlet 596.1 600.1 4.0 596.4 2.9 2.9 NO 596.5 4.6 4.6 NO 596.6 6.7 6.7 NO 596.6 7.5 7.5 NO OTLT10084 A3 ZOUT10314 Outlet 527.8 531.8 4.0 527.9 6.9 126.3 NO 527.9 11.1 201.7 NO 527.9 16.4 265.7 NO 527.9 18.5 288.8 NO CBIN10847 A3 CI0728 Curb Inlet 530.7 536.3 5.6 531.9 0.0 0.0 NO 533.1 0.0 0.0 NO 534.1 0.0 0.0 NO 534.5 0.0 0.0 NO CBIN10848 A3 CI0731 Curb Inlet 530.1 536.1 6.0 531.9 4.6 4.6 NO 533.1 7.5 7.5 NO 534.2 11.2 11.2 NO 534.6 12.8 12.8 NO CLEN10527 A3 ZCO11049 Cleanout 530.3 541.5 11.2 533.4 3.2 119.4 NO 534.4 5.1 187.0 NO 535.7 7.5 242.1 NO 536.3 8.5 259.8 NO CBIN10849 A3 CI0727 Curb Inlet 534.9 541.2 6.3 534.9 0.0 0.0 NO 534.9 0.0 0.0 NO 535.7 0.0 0.3 NO 536.3 0.0 0.4 NO CLEN10528 A3 ZCO12555 Cleanout 529.2 538.8 9.6 532.5 7.0 122.4 NO 533.6 11.8 192.1 NO 534.9 17.1 248.1 NO 535.5 19.4 268.1 NO CLEN10529 A3 ZCO12556 Cleanout 533.5 545.4 11.8 536.1 13.8 36.7 NO 537.0 22.4 58.9 NO 538.0 33.7 86.0 NO 538.5 38.4 99.0 NO OTHR10643 A3 ZOTHER10258Other 533.2 548.0 14.9 536.0 1.3 36.4 NO 536.9 1.9 60.0 NO 537.9 2.8 88.9 NO 538.4 3.1 100.9 NO CLEN10530 A3 ZCO11050 Cleanout 531.6 544.2 12.6 534.6 0.0 117.3 NO 535.7 0.0 184.4 NO 536.7 0.0 241.4 NO 537.2 0.0 261.4 NO CLEN10531 A3 ZCO11886 Cleanout 530.6 539.7 9.0 539.7 0.0 23.9 NO 539.9 0.0 29.9 NO 545.0 0.0 27.0 YES 548.3 0.0 26.8 YES CBIN10850 A3 CI1146 Curb Inlet 531.0 539.8 8.8 539.9 6.7 15.6 NO 540.3 11.0 21.3 NO 545.1 16.7 16.7 YES 548.3 19.1 19.1 YES INLT10341 A3 ZINL12050 Inlet 530.3 534.3 4.0 533.4 14.2 218.5 NO 536.8 23.0 360.9 YES 539.3 34.1 422.7 YES 540.9 38.7 396.5 YES OTLT10085 A3 ZOUT10252 Outlet 529.7 533.9 4.2 533.4 4.2 219.9 NO 536.8 6.8 361.2 YES 539.2 10.0 422.3 YES 540.9 11.4 397.0 YES CBIN10851 A3 CI1669 Curb Inlet 531.2 535.2 4.0 531.5 0.0 0.0 NO 531.6 0.0 0.0 NO 531.7 0.0 0.0 NO 531.7 0.0 0.0 NO CBIN10852 A3 CI0695 Curb Inlet 539.2 543.7 4.5 539.6 4.0 4.0 NO 539.7 6.5 6.5 NO 542.7 9.7 9.7 NO 544.6 11.0 11.0 NO CBIN10853 A3 CI10804 Curb Inlet 540.4 544.8 4.4 540.6 0.7 0.7 NO 540.6 1.0 1.0 NO 542.4 1.5 1.5 NO 544.8 1.7 1.7 NO CBIN10854 A3 CI0846 Curb Inlet 566.8 570.8 4.0 568.2 12.5 14.1 NO 568.9 20.8 23.4 NO 569.9 31.1 33.3 NO 570.3 35.3 38.7 NO CBIN10855 A3 CI0839 Curb Inlet 566.3 570.3 4.0 568.2 0.0 26.5 NO 568.8 0.0 44.6 NO 569.6 0.0 66.2 NO 569.9 0.0 75.5 NO OTHR10644 A3 ZOTHER10323Other 566.6 570.6 4.0 568.2 19.2 32.8 NO 568.8 31.0 53.7 NO 569.7 46.5 79.8 NO 570.0 52.6 90.6 NO CBIN10856 A3 CI0840 Curb Inlet 561.0 569.0 8.0 605.3 0.0 75.2 YES 648.3 0.0 120.1 YES 708.3 0.0 176.3 YES 738.2 0.0 201.7 YES INLT10342 A3 INL13143 Inlet 566.3 570.3 4.0 605.6 83.0 83.0 YES 648.7 134.6 134.6 YES 709.0 200.4 200.4 YES 739.0 230.4 230.4 YES CBIN10857 A3 CI1599 Curb Inlet 564.8 569.4 4.7 565.8 0.0 61.2 NO 568.0 0.0 99.5 NO 571.9 0.0 108.5 YES 572.6 0.0 110.5 YES CBIN10858 A3 CI0850 Curb Inlet 566.7 570.7 4.0 567.0 1.1 1.1 NO 568.0 1.7 1.7 NO 571.9 2.4 2.4 YES 572.7 2.7 2.7 YES OTHR10645 A3 ZOTHER10325Other 566.5 570.5 4.0 567.0 0.0 61.2 NO 568.0 0.0 99.9 NO 571.9 0.0 110.7 YES 572.7 0.0 111.5 YES CBIN10859 A3 CI0104 Curb Inlet 575.4 581.9 6.5 575.4 0.0 0.0 NO 575.4 0.0 0.0 NO 575.4 0.0 0.0 NO 575.4 0.0 0.0 NO CBIN10860 A3 CI0849 Curb Inlet 567.1 571.1 4.0 568.0 4.9 4.9 NO 568.8 7.8 7.8 NO 571.1 11.5 11.5 NO 571.2 13.0 13.0 NO INLT10343 A3 ZINL10553 Inlet 566.4 570.4 4.0 568.6 24.9 24.9 NO 569.5 41.6 41.6 NO 570.4 62.9 62.9 NO 570.6 71.8 71.8 NO OTLT10086 A3 ZOUT10298 Outlet 565.8 569.8 4.0 567.9 3.0 32.2 NO 568.7 4.7 53.6 NO 569.8 6.7 81.9 NO 569.8 7.6 90.2 NO CLEN10532 A3 ZCO11741 Cleanout 567.9 572.8 4.9 571.1 0.0 113.3 NO 571.9 0.0 170.1 NO 572.5 0.0 204.7 NO 572.7 0.0 216.1 NO OTHR10646 A3 ZOTHER10333Other 566.3 570.3 4.0 568.0 0.0 29.6 NO 568.7 0.0 49.1 NO 570.4 0.0 75.2 NO 570.5 0.0 85.0 NO CLEN10533 A3 ZCO12606 Cleanout 577.8 587.7 9.9 578.1 1.2 1.2 NO 578.2 1.9 1.9 NO 578.5 2.8 2.9 NO 578.7 3.1 3.1 NO CBIN10861 A3 CI0898 Curb Inlet 578.3 588.3 10.0 578.3 0.0 0.0 NO 578.3 0.0 0.0 NO 578.5 0.0 0.2 NO 578.7 0.0 0.2 NO CBIN10862 A3 CI0899 Curb Inlet 582.3 594.8 12.5 582.3 0.0 0.0 NO 582.3 0.0 0.0 NO 582.3 0.0 0.0 NO 582.3 0.0 0.0 NO CBIN10863 A3 CI1624 Curb Inlet 571.3 577.8 6.5 571.3 0.0 0.0 NO 571.3 0.0 0.0 NO 571.3 0.0 0.0 NO 571.3 0.0 0.0 NO CBIN10864 A3 CI0706 Curb Inlet 576.6 580.6 4.0 576.6 0.0 0.0 NO 576.6 0.0 0.0 NO 576.7 0.0 0.0 NO 576.8 0.0 0.0 NO CBIN10865 A3 CI1615 Curb Inlet 576.2 581.4 5.2 576.6 1.9 1.9 NO 576.6 3.1 3.1 NO 576.7 4.5 4.5 NO 576.8 5.1 5.1 NO CLEN10534 A3 ZCO11742 Cleanout 569.7 574.0 4.2 570.2 0.0 1.9 NO 570.4 0.0 3.0 NO 570.5 0.0 4.4 NO 571.2 0.0 4.9 NO CBIN10866 A3 CI1614 Curb Inlet 571.7 577.0 5.3 572.1 0.0 1.9 NO 572.2 0.0 3.0 NO 572.4 0.0 4.4 NO 572.4 0.0 5.0 NO CLEN10535 A3 ZCO12607 Cleanout 568.8 572.8 4.0 569.3 0.0 1.9 NO 569.4 0.0 3.0 NO 570.3 0.0 4.4 NO 572.8 0.0 5.9 NO OTLT10087 A3 ZOUT10369 Outlet 540.8 544.8 4.0 546.6 0.0 172.5 YES 547.2 0.0 287.8 YES 547.5 0.0 394.7 YES 547.7 0.0 425.8 YES INLT10344 A3 ZINL10555 Inlet 541.7 545.7 4.0 546.6 7.0 173.1 NO 547.3 11.2 287.3 YES 547.8 16.6 395.1 YES 548.0 18.8 426.6 YES OTLT10088 A3 ZOUT10370 Outlet 542.9 546.9 4.0 547.0 0.0 175.2 NO 547.7 0.0 284.2 NO 548.2 0.0 393.5 YES 548.3 0.0 425.7 YES OTLT10089 A3 ZOUT10408 Outlet 597.7 604.3 6.6 599.5 0.0 86.6 NO 601.3 0.0 342.5 NO 602.3 0.0 570.0 NO 602.5 0.0 632.2 NO INLT10345 A3 ZINL10556 Inlet 598.5 604.9 6.4 599.8 0.0 87.2 NO 602.7 0.0 345.2 NO 606.5 0.0 571.0 YES 607.7 0.0 632.4 YES CBIN10867 A3 CI0715 Curb Inlet 571.7 576.9 5.2 571.9 0.7 0.7 NO 572.0 1.1 1.1 NO 572.4 1.6 1.6 NO 572.4 1.8 1.8 NO OTLT10090 A3 ZOUT10025 Outlet 571.2 576.8 5.6 571.6 3.5 4.2 NO 571.8 7.8 8.9 NO 572.4 12.5 14.1 NO 572.4 14.5 16.3 NO CBIN10868 A3 CI0710 Curb Inlet 569.4 576.8 7.4 569.9 0.0 1.4 NO 570.0 0.0 2.4 NO 570.2 0.0 3.7 NO 570.2 0.0 4.2 NO INLT10346 A3 INL135 Inlet 569.3 577.1 7.8 569.8 0.4 1.9 NO 570.0 0.7 3.1 NO 570.1 1.0 4.6 NO 570.2 1.1 5.3 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 52 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN10869 A3 CI1625 Curb Inlet 569.9 574.5 4.6 570.3 1.4 1.4 NO 570.4 2.4 2.4 NO 570.6 3.7 3.7 NO 570.6 4.1 4.1 NO CBIN10870 A3 CI1617 Curb Inlet 571.1 579.0 7.9 571.5 0.9 2.9 NO 573.0 1.4 4.5 NO 579.3 2.0 15.7 NO 579.3 2.3 11.9 NO CBIN10871 A3 CI1616 Curb Inlet 573.8 582.6 8.8 574.2 0.9 2.1 NO 574.3 1.4 3.2 NO 582.7 2.1 13.2 NO 582.7 2.3 12.9 NO CBIN10872 A3 CI0707 Curb Inlet 575.9 581.7 5.8 575.9 0.0 0.0 NO 575.9 0.0 0.0 NO 581.9 0.0 10.1 NO 581.8 0.0 10.4 NO INLT10347 A3 INL13226 Inlet 568.0 578.0 10.0 571.4 2.1 135.1 NO 574.5 3.8 247.6 NO 584.1 5.9 1094.9 YES 584.1 6.7 1095.4 YES CBIN10873 A3 CI1529 Curb Inlet 524.9 529.2 4.3 533.1 0.0 0.3 YES 536.4 0.0 0.7 YES 538.5 0.0 0.3 YES 540.2 0.0 0.3 YES CBIN10874 A3 CI0729 Curb Inlet 524.1 529.1 5.0 533.1 2.9 2.9 YES 536.3 4.7 4.7 YES 538.5 7.1 7.1 YES 540.2 8.1 8.1 YES CBIN10875 A3 CI0730 Curb Inlet 523.7 529.7 6.0 533.1 0.0 0.6 YES 536.3 0.0 6.6 YES 538.4 0.0 2.8 YES 540.1 0.0 3.7 YES CBIN10876 A3 CI10341 Curb Inlet 522.5 529.8 7.3 533.1 30.1 44.1 YES 536.4 49.5 75.3 YES 538.4 75.1 108.8 YES 540.1 85.9 124.6 YES INLT10348 A3 INL087 Inlet 523.7 529.2 5.5 533.1 14.0 14.0 YES 536.4 23.2 23.2 YES 538.4 35.4 35.4 YES 540.1 40.6 40.6 YES OTHR10647 A3 ZOTHER10377Other 520.8 530.2 9.4 533.1 0.0 151.6 YES 536.4 0.0 234.8 YES 538.4 0.0 374.1 YES 540.1 0.0 369.7 YES OTLT10091 A3 OUT10248 Outlet 517.4 527.5 10.1 533.1 2.7 553.2 YES 536.3 4.2 746.8 YES 538.4 6.2 882.9 YES 540.0 7.0 952.3 YES OTHR10648 A3 ZOTHER10378Other 520.1 529.3 9.2 533.1 4.5 144.5 YES 536.3 7.2 249.8 YES 538.4 10.5 374.1 YES 540.1 11.9 375.6 YES OTHR10649 A3 ZOTHER10379Other 520.8 530.5 9.7 533.1 0.0 44.2 YES 536.4 0.0 75.2 YES 538.4 0.0 108.1 YES 540.1 0.0 124.1 YES INLT10349 A3 INL086 Inlet 524.1 528.1 4.0 533.1 0.0 244.0 YES 536.4 0.0 249.6 YES 538.5 0.0 249.0 YES 540.2 0.0 262.3 YES OTHR10650 A3 ZOTHER10380Other 522.9 529.1 6.1 533.1 0.0 245.3 YES 536.3 0.0 244.2 YES 538.5 0.0 250.4 YES 540.2 0.0 263.9 YES OTHR10651 A3 ZOTHER10381Other 523.8 529.5 5.7 533.1 1.8 244.4 YES 536.4 2.9 244.7 YES 538.5 4.5 249.8 YES 540.2 5.1 263.3 YES CBIN10877 A3 CI0698 Curb Inlet 524.9 530.5 5.6 533.1 1.2 1.2 YES 536.6 1.9 2.6 YES 539.2 2.8 2.8 YES 541.0 3.2 3.2 YES OTHR10652 A3 ZOTHER10382Other 523.0 532.6 9.6 533.2 0.0 229.9 NO 536.8 0.0 369.2 YES 539.9 0.0 533.7 YES 541.7 0.0 556.9 YES OTHR10653 A3 ZOTHER10383Other 520.9 530.1 9.2 533.1 0.0 236.0 YES 536.6 0.0 393.2 YES 539.2 0.0 533.9 YES 541.0 0.0 570.3 YES CBIN10878 A3 CI0696 Curb Inlet 528.6 534.9 6.3 533.1 0.0 0.1 NO 536.4 0.0 13.3 YES 538.6 0.0 5.6 YES 540.1 0.0 4.5 YES OTHR10654 A3 ZOTHER10384Other 526.0 535.3 9.3 533.1 0.3 121.1 NO 536.4 0.5 389.4 YES 538.5 0.8 295.2 YES 540.1 0.9 330.0 YES OTHR10655 A3 ZOTHER10386Other 528.5 538.3 9.8 533.1 0.0 55.0 NO 536.4 0.0 195.7 NO 538.7 0.0 134.5 NO 540.1 0.0 148.0 YES OTHR10656 A3 ZOTHER10387Other 525.3 535.1 9.8 533.2 0.0 210.0 NO 537.0 0.0 342.9 YES 540.6 0.0 529.5 YES 542.4 0.0 550.9 YES OTHR10657 A3 ZOTHER10388Other 531.2 542.2 10.9 533.1 0.0 54.9 NO 536.4 0.0 106.4 NO 540.1 0.0 126.5 NO 540.1 0.0 142.3 NO OTHR10658 A3 ZOTHER10389Other 531.0 542.0 10.9 533.1 0.0 54.9 NO 536.4 0.0 101.5 NO 539.7 0.0 128.9 NO 540.2 0.0 141.7 NO OTHR10659 A3 ZOTHER10390Other 538.2 550.0 11.8 539.9 2.4 176.3 NO 540.6 3.9 280.6 NO 543.5 5.7 530.3 NO 545.7 6.5 550.5 NO OTHR10660 A3 ZOTHER10391Other 538.4 550.3 11.9 540.1 0.0 175.8 NO 540.8 0.0 280.3 NO 543.6 0.0 531.2 NO 545.8 0.0 550.8 NO CBIN10879 A3 CI0690 Curb Inlet 545.7 551.5 5.8 545.9 2.0 2.0 NO 546.0 3.2 3.2 NO 546.1 4.8 4.8 NO 546.1 5.4 5.4 NO CBIN10880 A3 CI0697 Curb Inlet 542.4 549.7 7.3 542.4 0.0 0.0 NO 542.4 0.0 0.0 NO 543.6 0.0 0.3 NO 545.7 0.0 0.5 NO INLT10350 A3 ZINL10590 Inlet 540.2 545.3 5.0 540.2 0.0 0.0 NO 540.2 0.0 0.0 NO 542.7 0.0 0.1 NO 544.7 0.0 0.1 NO CBIN10881 A3 CI10803 Curb Inlet 540.5 544.9 4.4 540.5 0.0 0.0 NO 540.5 0.0 0.0 NO 542.7 0.0 0.4 NO 544.9 0.0 0.6 NO OTHR10661 A3 ZOTHER10393Other 534.4 544.0 9.7 536.3 0.0 207.2 NO 537.5 0.0 333.1 NO 542.6 0.0 536.0 NO 544.6 0.0 559.0 NO CBIN10882 A3 CI1613 Curb Inlet 552.4 556.6 4.2 552.4 0.0 0.0 NO 552.4 0.0 0.0 NO 552.4 0.0 0.0 NO 552.4 0.0 0.0 NO OTHR10662 A3 ZOTHER10394Other 540.6 555.2 14.6 542.7 1.6 173.1 NO 543.5 2.6 277.9 NO 545.1 3.7 530.2 NO 546.3 4.2 548.4 NO OTHR10663 A3 ZOTHER10396Other 541.6 551.3 9.7 543.4 4.7 173.1 NO 544.1 7.7 278.0 NO 545.7 11.5 534.3 NO 546.7 13.0 558.2 NO CBIN10883 A3 CI1537 Curb Inlet 547.3 551.6 4.3 547.3 0.0 0.0 NO 547.3 0.0 0.0 NO 547.3 0.0 0.0 NO 547.3 0.0 0.0 NO CBIN10884 A3 CI1605 Curb Inlet 546.9 557.0 10.1 547.6 0.0 9.9 NO 547.7 0.0 15.8 NO 548.0 0.0 23.2 NO 548.0 0.0 26.1 NO OTHR10664 A3 ZOTHER10398Other 540.2 555.1 14.9 542.0 1.4 175.3 NO 542.6 2.1 279.6 NO 544.6 3.1 537.3 NO 546.2 3.5 578.6 NO INLT10351 A3 ZINL10591 Inlet 567.8 571.8 4.0 567.8 0.0 0.0 NO 567.8 0.0 0.0 NO 567.8 0.0 0.0 NO 567.8 0.0 0.0 NO CLEN10536 A3 ZCO10592 Cleanout 562.6 571.4 8.8 562.6 0.0 0.0 NO 562.6 0.0 0.0 NO 562.6 0.0 0.0 NO 562.6 0.0 0.0 NO CBIN10885 A3 CI1606 Curb Inlet 552.8 561.5 8.7 553.3 4.1 4.1 NO 553.5 6.4 6.4 NO 553.7 9.4 9.4 NO 553.8 10.5 10.5 NO CLEN10537 A3 ZCO11064 Cleanout 552.1 560.0 8.0 552.9 0.0 10.1 NO 553.1 0.0 16.1 NO 553.5 0.0 23.7 NO 553.6 0.0 26.7 NO CBIN10886 A3 CI0057 Curb Inlet 555.0 559.0 4.0 555.5 5.0 5.0 NO 555.6 8.1 8.1 NO 555.7 12.1 12.1 NO 555.8 13.8 13.8 NO OTHR10665 A3 ZOTHER10399Other 553.4 559.0 5.7 553.9 1.2 6.2 NO 554.0 1.8 9.9 NO 554.2 2.6 14.7 NO 554.3 2.9 16.6 NO CBIN10887 A3 CI1612 Curb Inlet 558.2 562.3 4.1 558.2 0.0 0.0 NO 558.2 0.0 0.0 NO 558.2 0.0 0.0 NO 558.2 0.0 0.0 NO CBIN10888 A3 CI0893 Curb Inlet 559.2 563.9 4.8 559.2 0.0 0.0 NO 559.2 0.0 0.0 NO 559.2 0.0 0.0 NO 559.2 0.0 0.0 NO CBIN10889 A3 CI0892 Curb Inlet 556.7 563.9 7.1 556.7 0.0 0.0 NO 556.8 0.0 0.0 NO 557.1 0.0 0.1 NO 557.3 0.0 0.1 NO CBIN10890 A3 CI0448 Curb Inlet 553.4 560.4 6.9 554.0 0.0 0.1 NO 554.4 0.0 0.1 NO 554.8 0.0 0.1 NO 554.9 0.0 0.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 53 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10538 A3 ZCO10594 Cleanout 552.9 560.5 7.6 554.0 0.0 21.1 NO 554.4 0.0 37.0 NO 554.8 0.0 56.6 NO 554.9 0.0 64.8 NO OTHR10666 A3 ZOTHER10403Other 540.5 555.5 15.0 542.2 0.0 172.9 NO 542.8 0.0 279.8 NO 544.8 0.0 547.1 NO 546.3 0.0 562.3 NO OTHR10667 A3 ZOTHER10404Other 534.7 544.2 9.5 536.6 0.0 204.7 NO 537.7 0.0 329.1 NO 542.7 0.0 534.8 NO 544.7 0.0 557.2 NO OTHR10668 A3 ZOTHER10405Other 531.2 543.8 12.5 533.6 0.0 207.7 NO 537.3 0.0 333.9 NO 542.4 0.0 536.2 NO 544.4 0.0 559.2 NO OTHR10669 A3 ZOTHER10406Other 552.7 559.9 7.2 553.0 2.6 23.3 NO 553.2 4.0 40.5 NO 553.4 5.8 61.7 NO 553.4 6.5 70.6 NO OTLT10092 A3 ZINL12094 Outlet 529.8 533.8 4.0 533.2 0.0 32.0 NO 536.8 0.0 55.4 YES 539.2 0.0 66.1 YES 540.9 0.0 63.9 YES CLEN10539 A3 ZCO12095 Cleanout 540.3 546.1 5.7 541.4 1.9 27.6 NO 541.7 2.9 41.8 NO 541.9 4.2 53.3 NO 542.0 4.7 58.4 NO CLEN10540 A3 ZCO12096 Cleanout 538.2 543.6 5.3 539.2 1.8 28.8 NO 539.5 2.8 43.6 NO 539.7 4.1 55.6 NO 541.0 4.6 61.0 NO INLT10352 A3 ZINL12634 Inlet 536.9 542.8 5.9 536.9 0.0 0.0 NO 536.9 0.0 0.0 NO 542.8 0.0 4.0 NO 543.1 0.0 10.5 NO CLEN10541 A3 ZCO12840 Cleanout 534.2 542.5 8.3 535.2 0.0 32.0 NO 536.8 0.0 48.7 NO 542.5 0.0 62.6 NO 542.6 0.0 65.9 NO CLEN10542 A3 ZCO12841 Cleanout 536.4 541.9 5.5 537.4 0.0 28.8 NO 537.7 0.0 43.6 NO 539.3 0.0 55.6 NO 542.1 0.0 60.9 NO CBIN10891 A3 CI1393 Curb Inlet 537.6 542.1 4.6 537.6 0.0 0.0 NO 537.7 0.0 0.0 NO 539.3 0.0 0.1 NO 542.3 0.0 9.9 NO CLEN10543 A3 ZCO12097 Cleanout 532.0 537.7 5.7 533.2 0.0 32.0 NO 537.8 0.0 48.8 NO 539.3 0.0 65.9 YES 541.0 0.0 63.9 YES CBIN10892 A3 CI10343 Curb Inlet 541.5 545.6 4.1 541.5 0.0 0.0 NO 541.7 0.0 0.0 NO 541.9 0.0 0.0 NO 542.0 0.0 0.0 NO OTHR10670 A3 ZOTHER10407Other 536.8 548.2 11.4 538.7 9.3 204.7 NO 539.4 15.0 328.2 NO 543.2 22.4 541.0 NO 545.3 25.4 566.8 NO CBIN10893 A3 ZCI10344 Curb Inlet 547.8 551.8 4.0 547.8 0.0 0.0 NO 547.8 0.0 0.0 NO 547.8 0.0 0.0 NO 547.8 0.0 0.0 NO INLT10353 A3 INL076 Inlet 555.2 559.2 4.0 555.4 1.3 1.3 NO 555.8 3.2 3.2 NO 556.1 5.3 5.3 NO 556.3 6.2 6.2 NO CLEN10544 A3 ZCO12850 Cleanout 552.6 560.4 7.8 555.0 0.0 65.6 NO 555.8 0.0 102.0 NO 556.0 0.0 116.0 NO 556.2 0.0 118.7 NO CBIN10894 A3 CI10365 Curb Inlet 553.2 561.4 8.2 556.0 0.0 64.5 NO 561.4 0.0 99.8 NO 559.5 0.0 113.5 NO 561.4 0.0 116.0 NO CBIN10895 A3 CI10366 Curb Inlet 553.8 561.7 7.9 556.5 1.9 64.5 NO 561.7 3.5 99.8 NO 560.9 5.5 113.5 NO 561.7 6.3 116.0 NO CBIN10896 A3 CI10367 Curb Inlet 559.8 566.4 6.6 561.7 2.6 63.6 NO 567.1 4.0 109.0 NO 570.6 5.7 111.9 YES 571.3 6.4 114.3 YES INLT10354 A3 INL129 Inlet 557.8 563.4 5.6 558.7 9.5 9.5 NO 558.9 16.2 16.2 NO 559.2 24.3 24.3 NO 563.8 27.6 27.6 NO CLEN10545 A3 ZCO10633 Cleanout 531.1 535.1 4.0 531.5 2.9 2.9 NO 531.6 4.6 4.6 NO 531.7 6.7 6.7 NO 531.7 7.6 7.6 NO CBIN10897 A3 CI0897 Curb Inlet 531.2 535.2 4.0 531.5 0.0 0.0 NO 531.6 0.0 0.1 NO 531.7 0.0 0.1 NO 531.7 0.0 0.1 NO OTLT10093 A3 ZINL12890 Outlet 530.1 534.7 4.7 530.1 0.0 2.9 NO 530.1 0.0 4.5 NO 530.1 0.0 6.6 NO 530.1 0.0 7.5 NO OTHR10671 A3 ZOTHER10438Other 530.7 541.1 10.4 533.3 1.2 208.6 NO 537.2 1.9 335.4 NO 541.9 2.8 536.4 NO 543.8 3.2 559.8 YES CBIN10898 A3 CI10820 Curb Inlet 531.5 541.1 9.6 533.3 0.0 0.0 NO 537.2 0.0 0.1 NO 541.9 0.0 0.4 NO 543.8 0.0 1.1 YES CBIN10899 A3 CI0694 Curb Inlet 531.6 542.6 11.0 533.3 0.0 0.0 NO 537.2 0.0 0.0 NO 541.9 0.0 0.1 NO 543.8 0.0 0.3 YES CBIN10900 A3 CI1220 Curb Inlet 635.0 639.3 4.3 635.7 4.2 11.2 NO 635.9 7.2 19.5 NO 636.1 10.8 31.0 NO 636.2 12.3 35.1 NO INLT10355 A3 ZINL11147 Inlet 636.2 641.1 5.0 637.0 5.4 5.4 NO 637.5 9.9 9.9 NO 641.1 15.1 15.1 NO 641.2 17.2 17.2 NO SEPR10010 A3 SEP012 Separator 628.0 632.1 4.1 628.8 0.0 12.0 NO 629.1 0.0 20.9 NO 629.4 0.0 31.4 NO 629.5 0.0 35.7 NO INLT10356 A3 INL093 Inlet 628.9 633.7 4.8 629.7 0.9 11.9 NO 630.0 1.4 20.9 NO 630.3 2.1 31.4 NO 630.4 2.4 35.9 NO CBIN10901 A3 CI1219 Curb Inlet 659.5 666.2 6.7 659.7 0.0 1.8 NO 659.8 0.0 2.9 NO 659.8 0.0 4.2 NO 659.9 0.0 4.7 NO CBIN10902 A3 CI0574 Curb Inlet 660.8 667.4 6.5 661.3 0.0 1.8 NO 661.4 0.0 2.9 NO 661.6 0.0 4.2 NO 661.6 0.0 4.8 NO INLT10357 A3 ZINL12968 Inlet 661.1 667.1 6.0 661.6 1.8 1.8 NO 661.7 2.9 2.9 NO 661.9 4.2 4.2 NO 661.9 4.8 4.8 NO CBIN10903 A3 CI0895 Curb Inlet 565.4 569.4 4.0 567.7 16.0 16.0 NO 569.1 27.1 27.1 NO 571.2 41.2 41.2 YES 572.4 47.2 47.2 YES CBIN10904 A3 CI0844 Curb Inlet 563.6 568.2 4.6 565.3 11.1 38.6 NO 571.9 18.5 66.5 YES 584.6 27.6 98.7 YES 591.2 31.4 112.3 YES INLT10358 A3 ZINL12683 Inlet 566.8 571.2 4.5 567.3 1.6 1.6 NO 567.4 2.5 2.5 NO 567.6 3.8 3.8 NO 567.7 4.3 4.3 NO CBIN10905 A3 CI10388 Curb Inlet 553.3 557.7 4.4 603.2 15.7 45.4 YES 644.7 26.1 62.7 YES 702.7 39.2 83.0 YES 731.5 44.7 92.1 YES CBIN10906 A3 CI0054 Curb Inlet 551.2 555.8 4.6 563.0 0.0 40.9 YES 576.8 0.0 53.1 YES 596.0 0.0 66.6 YES 605.5 0.0 72.4 YES CBIN10907 A3 CI0053 Curb Inlet 551.7 556.1 4.4 564.8 2.8 41.0 YES 579.7 4.3 53.5 YES 600.6 6.3 67.1 YES 611.0 7.1 73.0 YES CLEN10546 A3 ZCO12132 Cleanout 550.8 555.4 4.7 561.8 4.8 42.5 YES 574.7 8.1 55.2 YES 592.7 12.4 69.0 YES 601.6 14.2 75.1 YES CBIN10908 A3 CI0206 Curb Inlet 552.0 557.1 5.1 561.8 0.0 2.6 YES 574.7 0.0 2.5 YES 592.7 0.0 4.1 YES 601.6 0.0 4.7 YES CBIN10909 A3 CI0209 Curb Inlet 549.8 556.0 6.2 559.3 6.1 44.5 YES 570.4 10.3 57.5 YES 586.1 15.7 71.9 YES 593.8 18.0 78.2 YES INLT10359 A3 ZINL12302 Inlet 528.9 534.6 5.7 533.6 7.8 90.1 NO 535.9 20.1 132.1 YES 538.1 33.4 161.9 YES 539.0 39.1 172.9 YES OTLT10094 A3 ZOUT10307 Outlet 528.0 532.7 4.7 530.2 29.5 100.1 NO 530.7 50.4 144.8 NO 531.0 77.4 182.7 NO 531.1 89.1 204.0 NO CBIN10910 A3 CI0357 Curb Inlet 563.5 569.0 5.6 564.9 4.5 32.3 NO 565.6 7.2 50.2 NO 570.3 10.5 74.1 YES 571.5 11.9 76.2 YES CBIN10911 A3 CI0356 Curb Inlet 562.8 569.1 6.3 564.5 2.0 34.1 NO 565.2 3.2 52.9 NO 569.5 4.8 76.6 NO 570.5 5.5 76.9 YES INLT10360 A3 ZINL11071 Inlet 574.3 578.3 4.0 575.1 1.2 24.8 NO 575.3 1.9 40.1 NO 576.3 2.8 53.3 NO 578.3 3.2 57.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 54 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10547 A3 ZCO12133 Cleanout 567.1 574.8 7.7 568.3 3.9 28.2 NO 568.7 6.2 44.0 NO 574.9 9.0 62.6 NO 575.7 10.2 67.3 NO CLEN10548 A3 ZCO12134 Cleanout 565.4 574.4 9.0 566.7 0.0 28.2 NO 567.2 0.0 44.0 NO 574.5 0.0 64.0 NO 574.5 0.0 66.0 NO OTLT10095 A3 ZOUT10035 Outlet 560.6 564.6 4.0 560.7 0.0 34.1 NO 560.7 0.0 52.9 NO 560.7 0.0 70.1 NO 560.7 0.0 74.2 NO CBIN10912 A3 CI1001 Curb Inlet 544.4 552.0 7.5 546.3 0.0 11.9 NO 546.7 0.0 19.5 NO 547.3 0.0 28.7 NO 547.5 0.0 33.2 NO CBIN10913 A3 CI1585 Curb Inlet 546.3 552.3 6.0 546.3 0.0 0.0 NO 546.3 0.0 0.0 NO 547.6 0.0 0.5 NO 550.0 0.0 0.4 NO CBIN10914 A3 CI1655 Curb Inlet 546.3 552.4 6.1 546.9 0.0 0.0 NO 547.2 0.0 0.0 NO 547.6 0.0 0.1 NO 547.8 0.0 0.1 NO CLEN10549 A3 ZCO10663 Cleanout 548.5 555.8 7.3 549.7 1.3 27.4 NO 550.1 2.3 42.5 NO 550.4 3.5 60.2 NO 550.6 4.0 66.4 NO CBIN10915 A3 CI1584 Curb Inlet 552.5 559.7 7.2 553.7 0.4 26.9 NO 554.0 0.6 41.8 NO 554.4 0.9 59.3 NO 554.6 1.0 65.5 NO CBIN10916 A3 CI0994 Curb Inlet 553.8 559.6 5.8 555.0 2.0 26.8 NO 555.4 3.3 41.7 NO 555.8 4.9 59.2 NO 555.9 5.5 65.3 NO CBIN10917 A3 CI1002 Curb Inlet 544.4 551.7 7.2 545.9 22.5 44.6 NO 546.4 37.4 77.6 NO 547.0 55.7 119.2 NO 547.3 63.2 135.4 NO INLT10361 A3 INL090 Inlet 548.3 552.4 4.1 548.3 0.0 0.0 NO 548.3 0.0 0.0 NO 548.3 0.0 0.0 NO 548.3 0.0 0.0 NO OTLT10096 A3 OUT065 Outlet 540.6 544.6 4.0 543.4 0.0 8.0 NO 544.5 0.0 13.0 NO 545.6 0.0 18.3 YES 546.0 0.0 21.2 YES INLT10362 A3 ZINL11321 Inlet 538.1 542.1 4.0 538.2 7.5 7.5 NO 538.3 12.0 12.0 NO 539.3 17.8 17.8 NO 540.9 20.1 20.1 NO CLEN10550 A3 ZCO10665 Cleanout 531.4 539.4 8.0 533.4 0.0 7.5 NO 536.8 0.0 12.0 NO 539.4 0.0 17.7 NO 540.9 0.0 20.1 YES OTHR10672 A3 ZOTHER10465Other 530.2 534.4 4.2 533.4 0.0 219.4 NO 536.8 0.0 361.1 YES 539.3 0.0 422.3 YES 540.9 0.0 396.4 YES OTLT10097 A3 ZINL12142 Outlet 534.7 538.7 4.0 534.7 0.0 0.0 NO 534.7 0.0 0.0 NO 534.7 0.0 0.0 NO 534.7 0.0 0.0 NO OTHR10673 A3 ZOTHER10482Other 528.6 536.4 7.8 531.9 1.4 124.1 NO 533.1 2.2 196.4 NO 534.1 3.2 256.3 NO 534.5 3.6 277.6 NO CLEN10551 A3 ZCO12788 Cleanout 533.0 547.7 14.7 535.9 0.0 117.8 NO 536.9 0.0 185.3 NO 537.8 0.0 261.7 NO 538.3 0.0 296.2 NO OTHR10674 A3 ZOTHER10509Other 573.7 585.4 11.6 574.7 26.1 26.1 NO 575.0 43.9 43.9 NO 575.3 66.8 66.8 NO 575.4 76.4 76.4 NO CBIN10918 A3 CI1556 Curb Inlet 583.7 589.7 6.0 583.8 0.0 0.2 NO 584.1 0.0 0.2 NO 584.4 0.0 0.2 NO 584.5 0.0 0.3 NO INLT10363 A3 ZINL12861 Inlet 582.6 590.3 7.7 583.8 22.8 22.8 NO 584.1 42.7 42.7 NO 584.4 65.4 65.4 NO 584.5 74.9 74.9 NO INLT10364 A3 ZINL12862 Inlet 579.0 583.3 4.4 580.3 1.2 32.3 NO 580.9 2.0 59.3 NO 583.1 2.9 86.6 NO 584.3 3.2 90.4 NO INLT10365 A3 ZINL12166 Inlet 577.0 582.6 5.7 578.8 2.4 33.8 NO 579.8 3.9 62.2 NO 582.7 5.7 87.3 NO 583.4 6.4 88.5 NO CBIN10919 A3 CI1142 Curb Inlet 527.4 533.5 6.0 528.1 3.5 3.5 NO 528.3 5.6 5.6 NO 528.5 8.4 8.4 NO 528.6 9.5 9.5 NO CBIN10920 A3 ZCI10492 Curb Inlet 523.6 530.7 7.1 524.5 1.6 7.8 NO 524.8 2.5 12.5 NO 525.2 3.7 18.4 NO 525.4 4.1 20.8 NO INLT10366 A3 ZINL12173 Inlet 525.1 530.8 5.7 525.9 3.1 6.3 NO 526.1 4.9 10.1 NO 526.4 7.2 15.0 NO 526.6 8.1 16.9 NO CBIN10921 A3 CI1111 Curb Inlet 609.9 616.3 6.4 610.5 7.3 7.3 NO 610.8 13.5 13.5 NO 611.0 20.6 20.6 NO 611.1 23.6 23.6 NO INLT10367 A3 ZINL11154 Inlet 598.0 602.0 4.0 598.7 1.7 8.7 NO 599.0 3.0 16.0 NO 599.3 4.5 24.4 NO 599.6 5.2 28.4 NO CLEN10552 A3 ZCO11155 Cleanout 590.9 595.7 4.8 593.5 2.4 24.9 NO 594.9 4.1 41.2 NO 596.2 6.2 82.0 NO 596.2 7.1 89.9 NO CLEN10553 A3 ZCO12730 Cleanout 592.8 596.8 4.0 593.7 0.0 8.7 NO 595.0 0.0 16.0 NO 596.9 0.0 24.9 NO 596.9 0.0 30.1 NO OTLT10098 A3 ZOUT10295 Outlet 589.1 593.1 4.0 591.2 0.0 24.9 NO 592.3 0.0 41.2 NO 593.9 0.0 76.4 NO 594.3 0.0 86.3 YES INLT10368 A3 ZINL10732 Inlet 610.9 616.3 5.5 610.9 0.0 0.0 NO 610.9 0.0 0.0 NO 611.0 0.0 0.1 NO 611.1 0.0 0.1 NO INLT10369 A3 ZINL11349 Inlet 612.0 616.0 4.0 612.0 0.0 0.0 NO 612.0 0.0 0.0 NO 612.0 0.0 0.0 NO 612.0 0.0 0.0 NO INLT10370 A3 ZINL11350 Inlet 550.6 556.0 5.4 557.8 11.0 11.0 YES 562.4 17.9 17.9 YES 569.7 26.7 26.7 YES 573.3 30.3 30.3 YES INLT10371 A3 ZINL12183 Inlet 550.3 554.3 4.0 554.0 18.7 27.0 NO 554.3 31.8 43.5 NO 554.4 48.2 63.9 NO 554.5 55.1 72.4 NO OTLT10099 A3 INL112 Outlet 550.1 554.1 4.0 553.8 5.4 32.4 NO 554.0 8.7 56.5 NO 554.2 12.9 76.8 NO 554.3 14.6 86.7 NO CBIN10922 A3 CI1662 Curb Inlet 597.6 604.4 6.8 597.6 0.0 0.0 NO 597.6 0.0 0.0 NO 597.6 0.0 0.0 NO 597.6 0.0 0.0 NO CBIN10923 A3 CI0680 Curb Inlet 595.3 602.7 7.5 595.3 0.0 0.0 NO 595.3 0.0 0.0 NO 595.3 0.0 0.0 NO 595.3 0.0 0.0 NO CBIN10924 A3 CI1660 Curb Inlet 585.4 589.7 4.3 585.4 0.0 0.0 NO 585.4 0.0 0.0 NO 585.4 0.0 0.0 NO 585.4 0.0 0.0 NO CBIN10925 A3 CI1658 Curb Inlet 570.7 578.5 7.8 570.7 0.0 0.0 NO 570.7 0.0 0.0 NO 570.7 0.0 0.0 NO 570.7 0.0 0.0 NO CBIN10926 A3 CI1656 Curb Inlet 558.7 564.0 5.4 558.7 0.0 0.0 NO 558.7 0.0 0.0 NO 558.7 0.0 0.0 NO 558.7 0.0 0.0 NO CBIN10927 A3 CI1657 Curb Inlet 555.3 563.7 8.5 556.0 0.0 10.1 NO 556.2 0.0 16.5 NO 556.4 0.0 24.3 NO 556.5 0.0 28.0 NO CBIN10928 A3 CI1659 Curb Inlet 567.6 578.5 10.9 568.3 2.1 10.2 NO 568.6 3.5 16.7 NO 568.8 5.2 24.5 NO 568.9 5.8 28.2 NO CBIN10929 A3 CI1661 Curb Inlet 578.4 589.3 10.9 579.0 0.0 8.3 NO 579.2 0.0 13.5 NO 579.4 0.0 19.8 NO 579.5 0.0 22.9 NO CLEN10554 A3 ZCO11082 Cleanout 591.9 602.3 10.4 592.3 2.9 2.9 NO 592.4 4.9 4.9 NO 592.5 7.4 7.4 NO 592.5 8.4 8.4 NO CLEN10555 A3 ZCO11083 Cleanout 578.8 589.3 10.5 579.7 5.5 8.3 NO 580.0 9.0 13.8 NO 580.4 13.2 20.4 NO 580.5 14.9 23.1 NO CLEN10556 A3 ZCO12184 Cleanout 546.2 552.1 5.9 546.9 2.3 11.9 NO 547.2 3.6 19.4 NO 547.6 5.2 28.6 NO 547.8 5.9 32.9 NO INLT10372 A3 ZINL12303 Inlet 592.4 596.4 4.0 594.1 15.2 16.1 NO 595.3 29.8 34.9 NO 596.4 46.1 54.8 NO 596.5 53.0 63.3 NO CLEN10557 A3 ZCO10746 Cleanout 544.3 549.1 4.7 549.1 0.0 2.0 NO 550.0 0.0 2.9 NO 553.8 0.0 4.1 YES 555.8 0.0 4.4 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 55 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10373 A3 ZINL11357 Inlet 545.2 549.2 4.0 549.2 7.5 7.5 NO 551.7 12.2 12.2 YES 557.2 18.2 18.2 YES 560.0 20.7 20.7 YES CLEN10558 A3 CO0871 Cleanout 542.8 547.3 4.5 547.3 18.4 28.8 NO 549.8 29.5 51.5 YES 553.7 43.6 59.2 YES 555.6 49.3 65.7 YES CLEN10559 A3 ZCO11785 Cleanout 591.6 602.9 11.3 591.6 0.0 0.0 NO 602.9 0.0 7.0 NO 602.9 0.0 10.3 NO 602.9 0.0 8.3 NO INLT10374 A3 ZINL11786 Inlet 596.7 600.7 4.0 597.9 0.0 32.4 NO 604.3 0.0 62.6 YES 607.8 0.0 100.0 YES 607.8 0.0 100.0 YES INLT10375 A3 ZINL12187 Inlet 592.6 597.2 4.6 592.6 0.0 0.0 NO 597.2 0.0 4.7 NO 597.2 0.0 6.7 NO 597.2 0.0 5.8 NO CBIN10930 A3 CI0003 Curb Inlet 589.8 601.5 11.7 591.0 0.0 32.5 NO 601.5 0.0 61.3 NO 601.5 0.0 67.8 NO 601.5 0.0 67.2 NO CBIN10931 A3 CI0005 Curb Inlet 581.0 587.8 6.9 582.0 1.4 33.4 NO 582.5 2.1 58.4 NO 582.6 3.1 64.1 NO 582.7 3.4 65.6 NO CBIN10932 A3 CI0004 Curb Inlet 568.2 573.5 5.3 573.5 0.0 33.3 NO 573.7 0.0 56.6 NO 574.6 0.0 62.4 YES 574.8 0.0 63.1 YES CBIN10933 A3 CI0996 Curb Inlet 568.0 574.1 6.1 572.1 1.2 34.2 NO 573.5 1.9 57.2 NO 573.7 2.7 64.1 NO 573.8 3.1 65.2 NO CLEN10560 A3 ZCO11085 Cleanout 576.6 586.9 10.3 578.8 4.2 48.0 NO 587.0 6.7 98.0 NO 594.0 9.8 89.6 YES 597.1 11.1 91.2 YES CBIN10934 A3 CI10500 Curb Inlet 577.3 587.6 10.3 579.4 6.2 44.3 NO 587.9 9.9 91.2 NO 594.6 14.5 92.8 YES 597.8 16.4 95.0 YES CBIN10935 A3 CI10501 Curb Inlet 580.6 588.3 7.7 580.6 0.0 0.0 NO 588.5 0.0 17.8 NO 594.6 0.0 17.7 YES 597.8 0.0 15.3 YES CLEN10561 A3 ZCO12980 Cleanout 580.7 591.4 10.7 582.3 0.0 38.6 NO 591.5 0.0 77.0 NO 596.1 0.0 90.7 YES 599.4 0.0 91.2 YES CBIN10936 A3 CI0723 Curb Inlet 582.9 596.0 13.1 584.5 5.7 38.4 NO 596.1 8.9 81.5 NO 597.7 13.0 110.9 YES 601.0 14.6 111.8 YES CBIN10937 A3 CI0722 Curb Inlet 591.2 596.5 5.3 591.9 0.0 33.1 NO 592.9 0.0 54.9 NO 598.0 0.0 82.0 YES 601.3 0.0 92.2 YES OTHR10675 A3 ZOTHER10677Other 625.2 638.4 13.2 625.9 0.0 29.2 NO 626.1 0.0 48.8 NO 626.4 0.0 75.1 NO 626.5 0.0 85.8 NO CBIN10938 A3 CI0751 Curb Inlet 544.5 548.7 4.2 546.2 6.1 7.7 NO 550.0 9.8 17.1 YES 553.9 14.5 17.2 YES 555.9 16.4 16.4 YES CBIN10939 A3 CI0750 Curb Inlet 545.5 549.5 4.0 546.4 0.0 2.1 NO 550.0 0.0 10.9 NO 554.0 0.0 11.2 YES 555.9 0.0 7.3 YES CLEN10562 A3 ZCO10762 Cleanout 584.4 595.4 11.0 585.8 0.0 20.6 NO 586.3 0.0 35.5 NO 586.9 0.0 53.8 NO 587.1 0.0 61.8 NO CBIN10940 A3 CI0096 Curb Inlet 584.6 595.4 10.8 585.8 0.0 0.1 NO 586.3 0.0 0.1 NO 586.9 0.0 0.0 NO 587.1 0.0 0.0 NO CLEN10563 A3 ZCO11086 Cleanout 585.5 606.2 20.7 586.6 0.0 6.6 NO 587.2 0.0 11.9 NO 587.9 0.0 17.5 NO 588.4 0.0 20.3 NO CLEN10564 A3 ZCO12743 Cleanout 585.2 602.5 17.3 586.6 14.3 20.5 NO 587.1 24.2 35.4 NO 587.9 36.9 53.6 NO 588.5 42.1 62.2 NO CBIN10941 A3 CI0093 Curb Inlet 585.8 610.6 24.8 586.8 6.7 6.7 NO 587.3 12.0 12.0 NO 588.0 17.8 17.8 NO 588.5 20.4 20.4 NO CBIN10942 A3 CI0282 Curb Inlet 586.1 607.4 21.3 586.7 0.0 0.2 NO 587.2 0.0 0.4 NO 595.1 0.0 0.6 NO 594.5 0.0 0.6 NO CLEN10565 A3 ZCO10763 Cleanout 665.8 671.8 6.0 666.4 3.0 11.8 NO 666.6 4.9 19.5 NO 666.9 7.2 28.9 NO 667.1 8.2 32.9 NO CLEN10566 A3 ZCO10764 Cleanout 638.8 644.8 6.0 639.5 0.0 12.8 NO 639.7 0.0 21.5 NO 639.9 0.0 32.1 NO 640.2 0.0 36.2 NO INLT10376 A3 ZINL11565 Inlet 652.3 658.3 6.0 652.3 0.0 0.0 NO 652.3 0.0 0.0 NO 652.3 0.0 0.0 NO 652.3 0.0 0.0 NO CBIN10943 A3 CI0315 Curb Inlet 638.9 644.9 6.0 639.5 1.2 1.2 NO 639.7 2.2 2.2 NO 639.9 3.5 3.5 NO 640.2 4.0 4.0 NO CBIN10944 A3 CI0314 Curb Inlet 642.0 648.0 6.0 642.0 0.0 0.0 NO 642.0 0.0 0.0 NO 642.0 0.0 0.0 NO 642.0 0.0 0.0 NO CLEN10567 A3 ZCO12744 Cleanout 623.7 629.7 6.0 625.0 18.1 30.0 NO 625.5 29.2 49.4 NO 630.1 43.5 73.6 NO 632.2 49.3 82.8 YES CLEN10568 A3 ZCO12745 Cleanout 621.4 627.4 6.0 622.8 1.9 31.9 NO 623.4 3.0 52.4 NO 627.4 4.3 84.7 NO 628.4 4.9 87.2 NO CBIN10945 A3 CI0281 Curb Inlet 621.6 627.6 6.0 622.8 0.0 0.1 NO 623.5 0.0 0.1 NO 627.7 0.0 7.5 NO 628.4 0.0 7.7 NO CBIN10946 A3 CI0280 Curb Inlet 621.6 627.6 6.0 622.8 0.0 0.0 NO 623.4 0.0 0.0 NO 627.6 0.0 1.2 NO 628.4 0.0 2.7 NO INLT10377 A3 ZINL10997 Inlet 624.1 630.1 6.0 624.1 0.0 0.0 NO 624.1 0.0 0.0 NO 630.2 0.0 6.4 NO 630.1 0.0 6.7 NO CLEN10569 A3 ZCO12190 Cleanout 690.2 696.2 6.0 690.8 1.4 8.9 NO 691.0 2.2 14.9 NO 691.2 3.2 22.2 NO 691.3 3.6 25.1 NO CLEN10570 A3 ZCO10765 Cleanout 701.7 707.7 6.0 702.2 0.0 7.6 NO 702.4 0.0 12.8 NO 702.6 0.0 20.2 NO 702.7 0.0 21.5 NO INLT10378 A3 ZINL10766 Inlet 703.9 709.9 6.0 704.8 7.7 7.7 NO 705.2 12.9 12.9 NO 709.9 19.2 19.2 NO 709.9 21.8 21.8 NO INLT10379 A3 ZINL12746 Inlet 625.3 629.7 4.4 625.3 0.0 0.0 NO 625.3 0.0 0.0 NO 625.3 0.0 0.0 NO 625.3 0.0 0.0 NO CLEN10571 A3 ZCO11787 Cleanout 615.8 623.0 7.3 616.4 5.0 5.0 NO 616.5 8.0 8.0 NO 616.7 11.6 11.6 NO 616.8 13.1 13.1 NO CLEN10572 A3 ZCO11788 Cleanout 614.3 620.0 5.8 615.1 5.2 10.1 NO 615.3 8.5 16.3 NO 615.6 12.6 23.9 NO 615.7 14.3 27.0 NO CLEN10573 A3 ZCO12747 Cleanout 611.6 616.4 4.8 612.2 1.9 11.9 NO 612.4 3.5 19.6 NO 612.7 5.3 29.0 NO 613.3 6.1 33.0 NO INLT10380 A3 INL13218 Inlet 603.3 611.4 8.1 604.4 1.6 20.3 NO 605.5 3.4 36.4 NO 611.5 5.5 60.2 NO 611.9 6.3 66.7 NO CLEN10574 A3 ZCO10776 Cleanout 583.0 590.6 7.7 583.6 0.0 4.9 NO 583.7 0.0 6.8 NO 584.2 0.0 8.8 NO 590.6 0.0 11.1 NO CLEN10575 A3 ZCO10777 Cleanout 589.8 595.0 5.2 590.0 0.0 4.9 NO 590.1 0.0 6.8 NO 590.1 0.0 8.8 NO 590.3 0.0 9.6 NO CLEN10576 A3 ZCO10778 Cleanout 579.8 587.3 7.5 580.9 0.0 14.7 NO 581.2 0.0 22.6 NO 587.3 0.0 35.4 NO 587.3 0.0 41.1 NO CLEN10577 A3 ZCO11566 Cleanout 580.8 587.8 7.0 581.6 0.0 9.9 NO 581.8 0.0 16.2 NO 587.8 0.0 24.0 NO 587.9 0.0 25.6 NO CLEN10578 A3 ZCO11567 Cleanout 583.4 591.0 7.6 584.3 0.0 9.9 NO 584.6 0.0 16.3 NO 585.0 0.0 23.0 NO 591.0 0.0 23.4 NO CLEN10579 A3 ZCO11568 Cleanout 577.7 584.5 6.8 578.8 0.0 14.7 NO 579.2 0.0 22.5 NO 584.5 0.0 34.5 NO 584.5 0.0 35.5 NO CBIN10947 A3 CI1653 Curb Inlet 576.0 580.6 4.6 577.0 0.0 14.7 NO 578.5 0.0 22.7 NO 581.2 0.0 33.5 NO 582.5 0.0 35.5 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 56 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN10948 A3 CI10517 Curb Inlet 582.9 589.1 6.2 583.7 0.0 9.9 NO 584.0 0.0 16.2 NO 584.6 0.0 23.1 NO 589.1 0.0 27.4 NO INLT10381 A3 INL13217 Inlet 608.4 615.7 7.3 609.0 2.3 7.1 NO 609.3 6.1 13.8 NO 615.7 10.2 23.4 NO 615.8 12.0 32.5 NO INLT10382 A3 ZINL12755 Inlet 627.5 634.6 7.2 627.8 5.0 5.0 NO 627.8 8.1 8.1 NO 627.9 12.0 12.0 NO 627.9 13.6 13.6 NO CLEN10580 A3 ZCO12756 Cleanout 618.7 626.3 7.7 619.2 0.0 5.0 NO 619.4 0.0 8.1 NO 619.5 0.0 12.0 NO 619.6 0.0 13.6 NO CLEN10581 A3 ZCO10785 Cleanout 614.4 622.6 8.2 614.9 0.0 4.9 NO 615.1 0.0 8.0 NO 615.3 0.0 11.8 NO 615.3 0.0 13.4 NO CLEN10582 A3 ZCO10786 Cleanout 611.0 619.0 8.1 611.5 0.0 4.9 NO 611.7 0.0 7.9 NO 612.0 0.0 11.8 NO 613.5 0.0 16.2 NO OTLT10100 A3 ZOTHER10690Outlet 577.6 590.3 12.7 578.0 0.0 19.0 NO 578.1 0.0 32.7 NO 578.1 0.0 49.0 NO 578.2 0.0 57.3 NO CBIN10949 A3 CI10675 Curb Inlet 611.3 623.0 11.7 612.0 7.2 7.2 NO 612.4 13.1 13.1 NO 612.9 19.9 19.9 NO 623.0 22.8 22.8 NO CLEN10583 A3 ZCO11840 Cleanout 610.8 623.1 12.3 611.5 0.0 7.2 NO 611.7 0.0 13.1 NO 612.5 0.0 19.9 NO 623.1 0.0 23.9 NO CBIN10950 A3 CI10521 Curb Inlet 602.7 616.2 13.6 603.2 3.8 3.8 NO 603.4 6.5 6.5 NO 603.7 9.8 9.8 NO 603.8 11.1 11.1 NO CLEN10584 A3 ZCO13050 Cleanout 602.0 616.7 14.7 602.8 0.0 10.7 NO 603.1 0.0 19.2 NO 603.5 0.0 28.6 NO 603.7 0.0 34.4 NO CBIN10951 A3 CI0573 Curb Inlet 603.3 616.2 12.9 603.3 0.0 0.0 NO 603.3 0.0 0.0 NO 603.5 0.0 0.1 NO 603.7 0.0 0.3 NO CBIN10952 A3 CI10522 Curb Inlet 595.3 608.6 13.3 595.3 0.0 0.0 NO 595.5 0.0 0.0 NO 595.8 0.0 0.0 NO 596.1 0.0 0.0 NO CLEN10585 A3 ZCO13051 Cleanout 594.3 608.9 14.6 595.1 2.9 13.2 NO 595.5 4.7 23.3 NO 595.8 7.0 34.6 NO 596.1 8.0 40.1 NO CBIN10953 A3 CI0568 Curb Inlet 595.9 608.7 12.8 595.9 0.0 0.0 NO 595.9 0.0 0.0 NO 595.9 0.0 0.0 NO 596.1 0.0 0.1 NO CBIN10954 A3 CI0572 Curb Inlet 585.1 598.6 13.5 585.1 0.0 0.0 NO 585.1 0.0 0.0 NO 585.1 0.0 0.0 NO 585.1 0.0 0.0 NO CBIN10955 A3 CI0571 Curb Inlet 585.7 598.3 12.6 585.7 0.0 0.0 NO 585.7 0.0 0.0 NO 585.7 0.0 0.0 NO 585.7 0.0 0.0 NO CLEN10586 A3 ZCO12199 Cleanout 583.4 598.5 15.1 584.3 2.9 15.6 NO 584.6 4.8 27.5 NO 584.9 7.2 40.8 NO 585.0 8.2 46.5 NO CBIN10956 A3 CI10523 Curb Inlet 581.0 594.3 13.3 581.0 0.0 0.0 NO 581.0 0.0 0.0 NO 581.3 0.0 0.0 NO 581.5 0.0 0.2 NO CLEN10587 A3 ZCO12200 Cleanout 579.0 594.3 15.3 580.3 3.9 19.0 NO 580.8 6.2 32.8 NO 581.3 9.0 48.7 NO 581.5 10.1 55.4 NO CBIN10957 A3 CI10524 Curb Inlet 581.4 594.1 12.7 581.4 0.0 0.0 NO 581.4 0.0 0.0 NO 581.4 0.0 0.0 NO 581.5 0.0 0.1 NO INLT10383 A3 ZINL10790 Inlet 544.2 549.5 5.3 546.9 0.0 0.2 NO 550.1 0.0 18.0 NO 550.1 0.0 12.9 NO 550.1 0.0 14.8 NO INLT10384 A3 ZINL10791 Inlet 543.4 549.0 5.7 545.4 1.5 10.4 NO 549.0 2.3 17.7 NO 549.0 3.3 20.0 NO 549.0 3.7 21.8 NO INLT10385 A3 ZINL11370 Inlet 544.0 549.1 5.1 545.4 0.0 0.5 NO 549.1 0.0 1.7 NO 549.1 0.0 2.4 NO 549.1 0.0 2.0 NO CLEN10588 A3 ZCO11371 Cleanout 544.9 552.4 7.5 552.4 0.0 3.4 NO 552.5 0.0 5.1 NO 552.5 0.0 5.3 NO 552.7 0.0 5.4 NO CLEN10589 A3 ZCO12204 Cleanout 544.5 551.4 6.8 551.4 0.0 4.0 NO 551.5 0.0 7.9 NO 551.7 0.0 7.8 NO 552.6 0.0 7.8 YES CLEN10590 A3 ZCO12205 Cleanout 544.2 550.2 6.0 550.2 0.0 3.1 NO 550.4 0.0 6.2 NO 551.6 0.0 6.0 YES 552.4 0.0 5.1 YES CLEN10591 A3 ZCO12759 Cleanout 543.7 550.1 6.3 550.1 8.3 9.3 NO 550.1 13.8 14.9 NO 551.6 21.0 21.0 YES 552.3 24.0 24.0 YES CLEN10592 A3 ZCO12235 Cleanout 532.2 543.2 11.1 532.7 2.6 3.4 NO 532.9 4.1 5.3 NO 533.0 5.9 7.8 NO 533.1 6.6 8.7 NO CLEN10593 A3 ZCO10870 Cleanout 531.5 542.7 11.3 532.0 0.0 3.4 NO 532.2 0.0 5.3 NO 532.4 0.0 7.7 NO 532.4 0.0 8.7 NO CLEN10594 A3 ZCO10871 Cleanout 531.0 541.7 10.7 531.7 1.4 4.7 NO 531.9 2.1 7.3 NO 532.1 3.1 10.7 NO 532.1 3.5 12.0 NO CLEN10595 A3 ZCO10872 Cleanout 530.4 540.1 9.7 531.0 0.0 4.6 NO 531.2 0.0 7.3 NO 531.4 0.0 10.7 NO 531.5 0.0 12.0 NO CLEN10596 A3 ZCO11576 Cleanout 529.8 539.0 9.2 530.4 0.0 4.7 NO 530.5 0.0 7.3 NO 530.7 0.0 10.7 NO 530.8 0.0 12.1 NO CLEN10597 A3 ZCO11577 Cleanout 528.4 536.6 8.3 529.4 8.6 12.6 NO 529.7 14.0 20.4 NO 530.0 21.0 30.4 NO 530.2 23.8 34.5 NO CLEN10598 A3 ZCO10044 Cleanout 527.6 537.2 9.6 528.6 0.0 12.6 NO 528.9 0.0 20.3 NO 529.3 0.0 30.2 NO 529.4 0.0 34.3 NO CLEN10599 A3 ZCO10045 Cleanout 526.8 535.6 8.8 528.1 0.0 12.7 NO 528.5 0.0 20.3 NO 528.9 0.0 30.4 NO 529.1 0.0 34.6 NO CLEN10600 A3 ZCO10046 Cleanout 526.6 535.2 8.6 528.1 0.0 13.6 NO 528.5 0.0 22.1 NO 528.9 0.0 34.0 NO 529.1 0.0 37.0 NO SEPR10011 A3 ZSEP10040 Separator 526.6 535.0 8.4 528.0 0.0 16.1 NO 528.4 0.0 25.0 NO 528.8 0.0 35.9 NO 528.9 0.0 42.0 NO CLEN10601 A3 ZCO11574 Cleanout 532.6 543.8 11.2 532.9 0.0 0.9 NO 533.0 0.0 1.3 NO 533.1 0.0 1.9 NO 533.2 0.0 2.2 NO INLT10386 A3 ZINL11575 Inlet 539.0 543.5 4.5 539.2 0.9 0.9 NO 539.2 1.3 1.3 NO 539.3 1.9 1.9 NO 539.3 2.2 2.2 NO INLT10387 A3 ZINL10047 Inlet 529.0 534.9 5.9 529.5 3.6 3.6 NO 529.6 5.7 5.7 NO 529.8 8.3 8.3 NO 529.8 9.4 9.4 NO CLEN10602 A3 ZCO11809 Cleanout 536.6 543.7 7.1 536.6 0.0 0.0 NO 536.6 0.0 0.0 NO 536.6 0.0 0.0 NO 536.6 0.0 0.0 NO CLEN10603 A3 ZCO11810 Cleanout 533.9 542.5 8.6 533.9 0.0 0.0 NO 533.9 0.0 0.0 NO 533.9 0.0 0.0 NO 533.9 0.0 0.0 NO CLEN10604 A3 ZCO11811 Cleanout 532.4 542.1 9.7 532.6 0.0 0.1 NO 532.7 0.0 0.1 NO 532.8 0.0 0.2 NO 532.9 0.0 0.3 NO CLEN10605 A3 ZCO11812 Cleanout 532.1 541.6 9.5 532.5 2.0 2.0 NO 532.7 3.1 3.1 NO 532.8 4.5 4.5 NO 532.9 5.1 5.1 NO CLEN10606 A3 ZCO10048 Cleanout 531.8 541.7 10.0 532.2 0.0 1.8 NO 532.3 0.0 2.9 NO 532.4 0.0 4.3 NO 532.5 0.0 4.8 NO CLEN10607 A3 ZCO10879 Cleanout 530.1 537.1 7.0 530.6 0.0 1.8 NO 530.7 0.0 2.8 NO 530.9 0.0 4.2 NO 531.0 0.0 4.7 NO OTHR10676 A3 ZOTHER10810Other 529.7 536.2 6.6 530.3 2.0 3.6 NO 530.5 3.2 5.7 NO 530.7 4.6 8.3 NO 530.8 5.2 9.4 NO CLEN10608 A3 ZCO10880 Cleanout 529.0 536.4 7.4 529.7 0.0 5.2 NO 529.9 0.0 8.1 NO 530.1 0.0 11.9 NO 530.2 0.0 13.4 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 57 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10609 A3 ZCO11578 Cleanout 529.2 536.6 7.4 529.9 1.7 5.2 NO 530.1 2.6 8.1 NO 530.3 3.7 11.8 NO 530.4 4.2 13.4 NO CLEN10610 A3 ZCO11579 Cleanout 528.8 536.6 7.7 529.5 0.0 5.2 NO 529.7 0.0 8.1 NO 529.9 0.0 11.9 NO 530.0 0.0 13.4 NO CLEN10611 A3 ZCO10049 Cleanout 527.5 536.3 8.8 528.4 0.0 8.4 NO 528.7 0.0 13.3 NO 529.0 0.0 19.5 NO 529.2 0.0 22.1 NO CLEN10612 A3 ZCO10050 Cleanout 526.9 536.0 9.1 527.9 0.0 8.3 NO 528.2 0.0 13.2 NO 528.5 0.0 19.3 NO 528.7 0.0 21.8 NO CLEN10613 A3 ZCO10051 Cleanout 526.6 534.9 8.3 527.7 0.0 8.3 NO 528.0 0.0 13.2 NO 528.3 0.0 19.3 NO 528.5 0.0 21.8 NO OTLT10101 A3 ZBAS10007 Outlet 526.6 534.9 8.3 526.6 0.0 23.3 NO 526.6 0.0 37.9 NO 526.6 0.0 55.4 NO 526.6 0.0 62.0 NO CLEN10614 A3 ZCO10882 Cleanout 526.5 535.8 9.3 533.2 1.3 25.7 NO 537.0 2.0 48.8 YES 540.3 2.9 71.7 YES 542.2 3.3 67.8 YES CLEN10615 A3 ZCO10883 Cleanout 523.1 532.4 9.2 533.2 0.0 15.2 NO 536.7 0.0 25.6 YES 539.4 0.0 38.1 YES 541.2 0.0 42.8 YES OTLT10102 A3 ZBAS10008 Outlet 523.2 531.4 8.2 523.2 0.0 12.7 NO 523.2 0.0 20.1 NO 523.2 0.0 29.7 NO 523.2 0.0 33.8 NO OTHR10677 A3 ZOTHER10811Other 521.6 531.0 9.4 533.2 0.0 238.3 YES 536.7 0.0 386.2 YES 539.4 0.0 535.6 YES 541.2 0.0 573.1 YES OTHR10678 A3 ZOTHER10812Other 524.4 534.0 9.6 533.2 4.0 230.1 NO 536.9 6.3 371.8 YES 540.3 9.4 535.5 YES 542.1 10.6 559.9 YES CLEN10616 A3 ZCO10052 Cleanout 523.4 533.3 9.9 524.5 0.0 10.7 NO 524.9 0.0 17.1 NO 525.2 0.0 25.3 NO 525.4 0.0 28.4 NO CLEN10617 A3 ZCO10053 Cleanout 524.0 533.6 9.6 524.9 0.0 9.4 NO 525.2 0.0 15.0 NO 525.6 0.0 22.2 NO 525.7 0.0 25.1 NO CLEN10618 A3 ZCO11813 Cleanout 524.6 531.1 6.5 525.5 2.4 9.4 NO 525.8 3.8 15.0 NO 526.1 5.6 22.1 NO 526.2 6.3 25.1 NO CLEN10619 A3 ZCO11814 Cleanout 525.8 532.0 6.2 526.7 3.6 7.4 NO 526.9 5.7 11.8 NO 527.2 8.4 17.4 NO 527.3 9.5 19.6 NO CLEN10620 A3 ZCO10054 Cleanout 527.6 532.8 5.2 528.2 2.1 4.2 NO 528.4 3.4 6.6 NO 528.6 4.9 9.7 NO 528.6 5.6 10.9 NO CLEN10621 A3 ZCO10055 Cleanout 528.5 533.5 4.9 529.0 2.2 2.2 NO 529.2 3.5 3.5 NO 529.3 5.2 5.2 NO 529.4 5.8 5.8 NO CLEN10622 A3 ZCO10056 Cleanout 529.0 534.4 5.4 529.0 0.0 0.0 NO 529.2 0.0 0.1 NO 529.3 0.0 0.2 NO 529.4 0.0 0.2 NO INLT10388 A3 ZINL11458 Inlet 525.8 530.9 5.1 525.8 0.0 0.0 NO 525.8 0.0 0.0 NO 526.1 0.0 0.0 NO 526.2 0.0 0.0 NO INLT10389 A3 ZINL11459 Inlet 526.3 531.4 5.0 526.7 0.0 0.0 NO 526.9 0.0 0.0 NO 527.2 0.0 0.1 NO 527.3 0.0 0.1 NO INLT10390 A3 ZINL10057 Inlet 528.2 532.7 4.5 528.2 0.0 0.0 NO 528.4 0.0 0.0 NO 528.6 0.0 0.0 NO 528.6 0.0 0.0 NO INLT10391 A3 ZINL10884 Inlet 529.1 533.2 4.1 529.1 0.0 0.0 NO 529.2 0.0 0.0 NO 529.3 0.0 0.0 NO 529.4 0.0 0.0 NO INLT10392 A3 ZINL10885 Inlet 530.2 536.3 6.1 530.2 0.0 0.0 NO 530.2 0.0 0.0 NO 530.2 0.0 0.0 NO 530.2 0.0 0.0 NO CLEN10623 A3 ZCO10886 Cleanout 526.4 533.2 6.8 526.7 0.0 1.3 NO 526.7 0.0 2.1 NO 526.8 0.0 3.1 NO 526.8 0.0 3.5 NO INLT10393 A3 ZINL11180 Inlet 527.5 532.1 4.7 527.5 0.0 0.0 NO 527.5 0.0 0.0 NO 527.5 0.0 0.0 NO 527.5 0.0 0.0 NO INLT10394 A3 ZINL11181 Inlet 527.8 532.0 4.3 528.2 1.4 1.4 NO 528.3 2.2 2.2 NO 528.4 3.2 3.2 NO 528.5 3.6 3.6 NO SEPR10012 A3 ZSEP10041 Separator 526.8 535.4 8.6 527.8 0.0 8.3 NO 528.1 0.0 13.2 NO 528.4 0.0 19.3 NO 528.6 0.0 21.8 NO SEPR10013 A3 ZSEP10042 Separator 523.3 532.4 9.1 524.5 2.1 12.7 NO 524.8 3.4 20.1 NO 525.2 5.1 29.7 NO 525.3 5.7 35.0 NO CBIN10958 A3 CI10617 Curb Inlet 541.8 545.8 4.0 543.0 0.0 0.0 NO 543.6 0.0 0.0 NO 544.0 0.0 0.0 NO 544.1 0.0 0.0 NO OTLT10103 A3 ZOUT10059 Outlet 528.0 532.8 4.8 528.0 1.8 4.9 NO 528.0 2.9 7.9 NO 528.0 4.2 11.6 NO 528.0 4.7 13.2 NO CBIN10959 A3 CI0018 Curb Inlet 531.9 535.9 4.0 532.6 3.3 3.3 NO 532.8 5.2 5.2 NO 533.0 7.8 7.8 NO 533.1 8.8 8.8 NO CBIN10960 A3 CI0890 Curb Inlet 523.3 527.3 4.0 524.3 1.5 8.8 NO 524.9 3.5 20.1 NO 528.3 6.0 33.1 NO 529.5 7.0 38.5 YES INLT10395 A3 INL089 Inlet 525.7 529.7 4.0 526.1 7.3 7.3 NO 526.3 16.6 16.6 NO 529.7 27.1 27.1 NO 529.9 31.5 31.5 NO CBIN10961 A3 CI0709 Curb Inlet 611.2 621.2 9.9 621.2 0.0 7.2 NO 620.6 0.0 1.5 NO 621.6 0.0 28.3 NO 621.6 0.0 26.9 NO CBIN10962 A3 CI0704 Curb Inlet 611.2 620.6 9.4 620.6 0.0 1.5 NO 620.6 0.0 0.2 NO 620.8 0.0 18.3 NO 620.9 0.0 18.6 NO INLT10396 A3 ZINL10918 Inlet 588.8 592.8 4.0 591.1 0.0 19.5 NO 592.3 0.0 35.5 NO 593.9 0.0 98.8 YES 594.3 0.0 111.0 YES OTLT10104 A3 ZOUT10061 Outlet 588.7 592.7 4.0 590.5 0.0 19.5 NO 591.7 0.0 35.5 NO 593.2 0.0 94.5 NO 593.8 0.0 106.1 YES INLT10397 A3 ZINL091 Inlet 588.4 592.4 4.0 590.5 0.0 17.5 NO 591.7 0.0 34.0 NO 593.2 0.0 49.9 NO 593.8 0.0 56.0 YES OTLT10105 A3 ZOUT10062 Outlet 588.3 592.3 4.0 588.9 0.0 17.5 NO 589.1 0.0 33.7 NO 589.2 0.0 49.8 NO 589.2 0.0 55.9 NO CLEN10624 A3 ZCO11421 Cleanout 587.8 599.5 11.7 588.5 0.0 7.2 NO 599.5 0.0 12.2 NO 599.5 0.0 16.6 NO 599.5 0.0 17.2 NO CBIN10963 A3 CI1152 Curb Inlet 586.0 591.8 5.8 586.9 0.0 7.2 NO 591.8 0.0 11.5 NO 591.9 0.0 17.5 NO 592.8 0.0 18.6 NO CBIN10964 A3 CI1153 Curb Inlet 585.4 591.9 6.5 586.4 2.9 9.9 NO 591.9 5.2 16.3 NO 591.9 8.0 24.1 NO 592.0 9.1 23.9 NO OTHR10679 A3 ZOTHER10844Other 526.5 535.8 9.3 533.1 1.9 120.9 NO 536.4 3.2 316.6 NO 538.5 4.8 294.7 YES 540.1 5.5 296.1 YES OTHR10680 A3 ZOTHER10845Other 528.9 536.0 7.0 533.1 0.0 65.1 NO 536.6 0.0 184.2 NO 538.6 0.0 164.9 YES 540.1 0.0 143.4 YES OTHR10681 A3 ZOTHER10846Other 529.1 536.2 7.1 533.1 1.2 58.4 NO 536.8 1.9 201.3 NO 538.6 2.8 152.1 YES 540.1 3.1 134.3 YES CBIN10965 A3 CI0652 Curb Inlet 532.3 536.3 4.0 541.8 9.0 9.0 YES 554.8 15.1 15.1 YES 578.0 23.0 23.0 YES 589.8 26.4 26.4 YES CBIN10966 A3 CI0651 Curb Inlet 531.2 536.3 5.1 533.1 48.4 58.0 NO 536.9 76.9 93.5 NO 538.5 112.2 139.9 YES 540.2 128.2 164.2 YES OTHR10682 A3 ZOTHER10847Other 529.2 536.2 7.0 533.1 0.0 0.9 NO 536.9 0.0 110.0 NO 538.6 0.0 93.1 YES 540.1 0.0 99.2 YES INLT10398 A3 ZINL12260 Inlet 564.5 570.9 6.4 566.5 2.6 27.9 NO 567.2 4.0 47.0 NO 568.0 5.7 69.8 NO 568.4 6.4 79.7 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 58 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10683 A3 ZOTHER11100Other 541.8 553.1 11.3 542.9 1.7 28.6 NO 543.2 2.6 39.8 NO 543.4 3.8 50.9 NO 543.5 4.2 55.8 NO OTHR10684 A3 ZOTHER11101Other 629.9 634.7 4.8 630.4 0.0 3.0 NO 630.5 0.0 5.0 NO 630.6 0.0 7.5 NO 630.7 0.0 8.5 NO CBIN10967 A3 CI10654 Curb Inlet 548.6 552.6 4.0 548.6 0.0 0.0 NO 549.0 0.0 0.0 NO 549.4 0.0 0.0 NO 549.7 0.0 0.0 NO OTHR10685 A3 ZOTHER11245Other 545.3 551.3 5.9 548.3 5.2 231.0 NO 549.0 8.3 357.0 NO 549.4 12.2 459.2 NO 549.7 13.8 524.3 NO INLT10399 A3 ZINL10107 Inlet 550.4 554.4 4.0 550.4 0.0 0.0 NO 550.4 0.0 0.0 NO 550.7 0.0 0.1 NO 551.2 0.0 0.1 NO OTHR10686 A3 ZOTHER11246Other 546.6 553.9 7.3 549.4 0.0 229.1 NO 550.2 0.0 354.8 NO 550.7 0.0 452.4 NO 551.2 0.0 518.6 NO CBIN10968 A3 CI10655 Curb Inlet 550.7 554.7 4.0 550.7 0.0 0.0 NO 551.3 0.0 0.0 NO 551.8 0.0 0.0 NO 552.2 0.0 0.0 NO OTHR10687 A3 ZOTHER11247Other 548.1 555.9 7.8 550.5 1.2 228.8 NO 551.3 1.9 354.7 NO 551.8 2.8 451.9 NO 552.2 3.1 514.5 NO OTLT10106 A3 OUT064 Outlet 540.8 544.8 4.0 543.6 0.0 52.4 NO 544.6 0.0 64.5 NO 545.7 0.0 80.7 NO 546.1 0.0 87.8 YES INLT10400 A3 ZINL11192 Inlet 568.5 572.5 4.0 568.5 0.0 0.0 NO 568.8 0.0 2.4 NO 569.7 0.0 4.3 NO 570.0 0.0 4.3 NO OTHR10688 A3 ZOTHER11293Other 555.4 559.4 4.0 557.1 12.0 12.0 NO 557.4 19.3 19.3 NO 557.7 28.8 28.8 NO 557.8 32.7 32.7 NO OTHR10689 A3 ZOTHER11295Other 582.2 586.2 4.0 583.4 0.0 32.7 NO 583.8 0.0 59.6 NO 584.0 0.0 91.3 NO 584.4 0.0 104.1 NO OTHR10690 A3 ZOTHER11323Other 567.2 576.8 9.7 571.0 1.4 137.9 NO 576.8 2.2 246.6 NO 578.4 3.1 486.6 YES 578.4 3.5 488.3 YES OTLT10107 A3 OUT10249 Outlet 567.5 571.5 4.0 570.9 5.3 118.4 NO 571.4 8.6 175.7 NO 571.8 13.0 210.6 NO 571.9 14.8 222.6 NO CLEN10625 A3 ZCO11439 Cleanout 580.5 584.8 4.3 581.4 1.7 7.2 NO 581.7 2.7 11.3 NO 582.0 3.8 16.4 NO 582.1 4.3 18.5 NO INLT10401 A3 ZINL12264 Inlet 580.0 584.0 4.0 580.7 0.0 7.2 NO 581.0 0.0 11.4 NO 581.1 0.0 17.3 NO 581.2 0.0 19.9 NO OTHR10691 A3 ZOTHER11355Other 549.8 556.3 6.6 551.6 0.0 92.9 NO 552.1 0.0 144.2 NO 552.6 0.0 183.7 NO 552.8 0.0 211.0 NO INLT10402 A3 ZINL11443 Inlet 549.3 556.9 7.5 551.3 3.4 228.4 NO 551.9 5.3 354.1 NO 552.4 7.7 450.0 NO 552.7 8.7 516.5 NO INLT10403 A3 INL113 Inlet 550.3 558.1 7.8 552.2 0.0 91.2 NO 552.7 0.0 141.6 NO 553.1 0.0 176.2 NO 553.3 0.0 200.3 NO CBIN10969 A3 CI0052 Curb Inlet 551.8 556.7 4.9 552.1 0.0 0.0 NO 552.6 0.0 0.1 NO 553.0 0.0 0.1 NO 553.2 0.0 0.1 NO OTHR10692 A3 ZOTHER11356Other 550.2 556.5 6.3 552.1 4.8 92.9 NO 552.6 7.6 144.2 NO 553.0 11.3 183.7 NO 553.2 12.8 205.6 NO CBIN10970 A3 CI0055 Curb Inlet 551.8 556.2 4.5 551.8 0.0 0.0 NO 552.1 0.0 0.0 NO 552.6 0.0 0.0 NO 552.8 0.0 0.2 NO INLT10404 A3 INL101 Inlet 550.8 558.8 8.0 552.7 3.1 225.6 NO 553.2 6.5 351.4 NO 553.7 10.3 438.2 NO 554.0 11.8 529.5 NO CLEN10626 A3 ZCO10956 Cleanout 553.6 563.3 9.7 555.9 4.2 146.4 NO 556.7 8.9 227.5 NO 557.6 14.1 280.7 NO 563.4 16.3 370.7 NO INLT10405 A3 ZINL103 Inlet 556.4 568.2 11.8 558.6 14.8 139.2 NO 559.3 24.6 214.6 NO 560.2 36.6 263.6 NO 568.4 41.8 661.1 NO OTHR10693 A3 ZOTHER11357Other 552.1 561.6 9.4 554.4 1.6 147.6 NO 555.2 3.3 229.5 NO 555.8 5.2 283.7 NO 561.6 6.0 373.9 NO INLT10406 A3 INL126 Inlet 555.2 560.1 4.9 555.2 0.0 0.0 NO 555.2 0.0 0.0 NO 555.9 0.0 0.9 NO 560.1 0.0 4.7 NO CLEN10627 A3 ZCO12265 Cleanout 555.8 561.0 5.2 556.8 0.0 22.9 NO 557.1 0.0 38.4 NO 557.5 0.0 59.2 NO 557.6 0.0 64.2 NO CLEN10628 A3 ZCO10957 Cleanout 556.7 561.7 5.0 559.2 0.0 23.6 NO 560.3 0.0 39.5 NO 561.7 0.0 59.7 NO 562.2 0.0 65.4 NO CLEN10629 A3 ZCO10958 Cleanout 557.0 561.5 4.5 559.3 19.6 19.6 NO 560.4 32.9 33.1 NO 562.0 49.4 49.5 NO 562.5 56.2 56.2 YES CBIN10971 A3 CI10657 Curb Inlet 557.5 561.5 4.0 559.2 4.6 4.6 NO 560.4 7.3 7.3 NO 561.8 10.7 10.7 NO 562.3 12.1 12.1 NO CBIN10972 A3 CI10658 Curb Inlet 557.4 561.7 4.3 559.3 0.0 1.7 NO 560.5 0.0 3.0 NO 562.1 0.0 3.5 NO 562.5 0.0 3.7 NO CBIN10973 A3 CI0163 Curb Inlet 612.0 616.0 4.0 612.3 2.8 2.8 NO 612.4 4.5 4.5 NO 612.5 6.5 6.5 NO 612.5 7.3 7.3 NO OTHR10694 A3 ZOTHER11365Other 603.6 617.4 13.8 604.4 0.0 31.9 NO 604.6 0.0 53.1 NO 604.9 0.0 81.4 NO 605.5 0.0 92.9 NO CBIN10974 A3 CI0640 Curb Inlet 580.2 586.2 6.0 581.2 5.0 5.0 NO 586.2 8.4 8.4 NO 586.2 12.6 12.6 NO 586.2 14.3 14.3 NO OTLT10108 A3 ZOUT10071 Outlet 579.9 583.9 4.0 579.9 0.0 5.0 NO 579.9 0.0 9.0 NO 579.9 0.0 13.4 NO 579.9 0.0 13.8 NO CBIN10975 A3 CI0995 Curb Inlet 574.8 580.4 5.7 574.8 0.0 0.0 NO 574.8 0.0 0.0 NO 574.8 0.0 0.0 NO 574.8 0.0 0.0 NO OTLT10109 A3 OUT102 Outlet 627.8 631.8 4.0 628.5 0.0 12.0 NO 628.6 0.0 20.9 NO 628.7 0.0 31.4 NO 628.7 0.0 35.7 NO OTLT10110 A3 ZOTHER11377Outlet 526.6 534.9 8.3 527.2 2.4 22.9 NO 527.4 3.9 37.3 NO 527.6 5.8 52.7 NO 527.6 6.6 59.4 NO OTLT10111 A3 ZOTHER11378Outlet 526.6 534.7 8.2 527.1 0.0 10.1 NO 527.2 0.0 16.0 NO 527.3 0.0 24.6 NO 527.3 0.0 28.2 NO OTHR10695 A3 ZOTHER11379Other 523.2 531.6 8.4 533.2 3.0 15.4 YES 536.7 5.8 25.4 YES 539.4 9.0 37.9 YES 541.2 10.3 43.2 YES OTLT10112 A3 ZOTHER11380Outlet 523.3 532.1 8.8 523.8 0.0 15.8 NO 523.9 0.0 24.9 NO 524.0 0.0 37.9 NO 524.0 0.0 43.9 NO CBOL10003 A3 CBO095 Curb Outlet 572.9 577.1 4.2 573.3 17.1 17.1 NO 573.4 29.2 29.2 NO 573.5 44.4 44.4 NO 573.5 50.7 50.7 NO INLT10407 A3 INL100 Inlet 553.0 557.0 4.0 553.5 4.9 37.8 NO 553.6 7.7 55.9 NO 553.6 11.2 70.5 NO 553.7 12.7 77.2 NO INLT10408 A3 INL11196 Inlet 540.3 544.3 4.0 543.4 1.6 227.5 NO 544.5 2.5 355.3 NO 545.6 3.6 477.5 YES 546.0 4.1 519.3 YES OTLT10113 A3 OUT10205 Outlet 539.5 543.5 4.0 543.0 0.0 226.0 NO 543.6 0.0 359.2 NO 544.0 0.0 482.8 NO 544.1 0.0 520.0 NO OTHR10696 A3 ZOTHER11413Other 540.3 544.3 4.0 543.0 15.4 15.4 NO 543.6 24.1 24.1 NO 544.0 35.0 35.0 NO 544.1 39.4 39.4 NO INLT10409 A3 INL12286 Inlet 522.2 528.2 6.0 522.7 1.8 1.8 NO 523.1 2.8 2.8 NO 528.2 4.1 4.1 NO 528.2 4.7 4.7 NO CBIN10976 A3 CI0894 Curb Inlet 521.2 525.6 4.4 522.3 0.0 10.5 NO 523.1 0.0 22.7 NO 525.7 0.0 36.2 NO 526.2 0.0 41.3 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 59 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10697 A3 ZOTHER11415Other 522.8 526.8 4.0 523.7 0.0 8.8 NO 524.2 0.0 20.5 NO 527.3 0.0 32.2 NO 528.3 0.0 36.8 YES CBOL10004 A3 CBO096 Curb Outlet 569.5 573.5 4.0 569.9 1.6 18.5 NO 569.9 2.5 31.5 NO 570.0 3.6 47.6 NO 570.1 4.1 54.4 NO CBIN10977 A3 CI0292 Curb Inlet 630.3 638.1 7.9 630.3 0.0 0.0 NO 630.3 0.0 0.0 NO 630.3 0.0 0.0 NO 630.3 0.0 0.0 NO OTHR10698 A3 ZOTHER11425Other 527.3 537.4 10.2 533.2 1.0 209.5 NO 537.6 1.6 336.4 NO 541.2 2.3 532.7 YES 543.1 2.6 555.7 YES CLEN10630 A3 ZCO10127 Cleanout 570.0 579.9 9.9 575.2 0.5 379.2 NO 575.4 0.8 491.6 NO 579.9 1.2 678.1 NO 579.9 1.3 698.6 NO INLT10410 A3 INL10128 Inlet 572.3 579.3 7.0 573.3 0.9 44.8 NO 575.4 1.6 257.5 NO 577.6 2.3 565.3 NO 578.2 2.7 634.8 NO OTLT10114 A3 OUT10218 Outlet 569.4 573.4 4.0 569.5 0.0 486.6 NO 569.5 0.0 593.3 NO 569.7 0.0 1009.6 NO 569.7 0.0 1148.0 NO CBIN10978 A3 CI0103 Curb Inlet 570.3 582.3 12.0 570.7 1.9 1.9 NO 570.8 3.1 3.1 NO 570.9 4.5 4.5 NO 570.9 5.1 5.1 NO CLEN10631 A3 ZCO10129 Cleanout 571.0 581.7 10.7 576.3 1.4 341.6 NO 577.4 2.2 470.8 NO 582.1 3.2 590.9 NO 582.5 3.6 620.7 NO CBIN10979 A3 CI0382 Curb Inlet 576.8 584.5 7.7 577.3 5.7 5.7 NO 577.9 9.2 9.2 NO 584.7 13.5 13.5 NO 584.7 15.3 15.3 NO CBIN10980 A3 CI0896 Curb Inlet 563.8 568.4 4.6 565.8 27.6 27.6 NO 572.9 51.7 51.7 YES 586.5 81.2 81.2 YES 593.6 93.5 93.5 YES CBIN10981 A3 CI1654 Curb Inlet 574.8 580.4 5.5 576.7 11.1 23.9 NO 580.4 18.9 45.4 NO 580.9 28.2 56.9 NO 582.2 32.1 57.8 YES OTHR10699 A3 ZOTHER11429Other 535.9 541.5 5.5 537.0 3.9 32.0 NO 537.3 6.5 48.6 NO 539.3 9.7 62.6 NO 541.8 11.1 68.0 NO INLT10411 A3 INL121 Inlet 573.1 577.1 4.0 573.1 0.0 0.0 NO 573.2 0.0 1.2 NO 579.0 0.0 3.9 YES 579.7 0.0 4.1 YES OTHR10700 A3 ZOTHER11564Other 527.8 531.8 4.0 533.2 0.0 270.5 YES 536.6 0.0 419.6 YES 539.0 0.0 520.2 YES 540.6 0.0 596.6 YES OTHR10701 A3 ZOTHER11565Other 528.9 532.9 4.0 533.2 0.0 225.8 NO 536.7 0.0 360.9 YES 539.1 0.0 416.6 YES 540.8 0.0 387.2 YES OTHR10702 A3 ZOTHER11566Other 529.4 533.4 4.0 533.2 0.0 225.8 NO 536.8 0.0 366.1 YES 539.2 0.0 430.9 YES 540.9 0.0 394.6 YES OTHR10703 A3 ZOTHER11577Other 527.6 532.0 4.4 529.1 0.0 101.2 NO 529.3 0.0 146.4 NO 529.5 0.0 194.1 NO 529.6 0.0 217.0 NO OTHR10704 A3 ZOTHER11584Other 560.6 564.6 4.0 562.0 1.0 35.0 NO 562.7 1.6 54.2 NO 563.2 2.3 71.8 NO 563.3 2.6 76.1 NO OTHR10705 A3 ZOTHER11587Other 565.7 569.7 4.0 569.0 4.2 111.8 NO 569.5 6.5 171.8 NO 570.0 9.4 207.2 NO 570.0 10.6 246.5 NO OTHR10706 A3 ZOTHER11588Other 565.2 569.2 4.0 567.9 0.0 127.2 NO 568.7 0.0 194.9 NO 569.6 0.0 244.7 NO 569.7 0.0 359.6 NO OTHR10707 A3 ZOTHER11598Other 534.6 538.6 4.0 538.2 20.7 226.6 NO 538.7 32.9 361.4 NO 539.4 48.4 486.6 NO 541.0 54.6 514.1 YES OTHR10708 A3 ZOTHER11599Other 579.3 583.3 4.0 581.0 1.6 26.7 NO 581.4 2.7 42.0 NO 581.9 4.0 64.7 NO 582.0 4.5 77.3 NO CBIN10982 A3 CI0569 Curb Inlet 537.6 543.3 5.8 538.7 7.6 7.6 NO 539.2 12.7 12.7 NO 540.2 19.5 19.5 NO 540.6 22.4 22.4 NO CBIN10983 A3 CI0570 Curb Inlet 540.6 544.6 4.0 542.4 43.1 54.3 NO 543.5 74.4 96.7 NO 545.0 114.8 149.5 NO 545.7 133.8 173.8 YES CBIN10984 A3 CI0223 Curb Inlet 717.8 734.0 16.2 718.7 0.0 19.8 NO 719.0 0.0 38.1 NO 719.3 0.0 58.9 NO 719.4 0.0 67.7 NO OTLT10115 A3 OUT10221 Outlet 572.3 576.3 4.0 572.3 0.0 29.8 NO 572.3 0.0 50.1 NO 572.3 0.0 75.5 NO 572.3 0.0 87.4 NO CBIN10985 A3 CI0703 Curb Inlet 570.4 580.5 10.1 575.7 0.0 349.0 NO 576.3 0.0 460.0 NO 580.8 0.0 622.2 NO 580.8 0.0 623.1 NO CBIN10986 A3 CI1607 Curb Inlet 582.9 592.2 9.3 582.9 0.0 0.0 NO 583.5 0.0 0.3 NO 592.2 0.0 0.5 NO 592.2 0.0 1.4 NO INLT10412 A3 ZINL13302 Inlet 563.6 567.6 4.0 605.0 0.0 4.7 YES 647.7 0.0 8.3 YES 707.5 0.0 12.9 YES 737.2 0.0 15.1 YES OTLT10116 A3 ZOUT10377 Outlet 559.9 568.1 8.2 605.0 2.5 66.8 YES 647.7 4.0 104.5 YES 707.4 5.8 151.1 YES 737.2 6.6 172.1 YES INLT10413 A3 ZINL13304 Inlet 561.3 567.3 6.1 563.0 5.2 62.9 NO 567.7 8.2 111.8 NO 571.4 12.0 110.8 YES 572.2 13.5 113.2 YES INLT10414 A3 ZINL13306 Inlet 581.8 585.8 4.0 582.6 2.8 2.8 NO 582.8 4.4 4.4 NO 583.0 6.3 6.3 NO 583.1 7.2 7.2 NO INLT10415 A3 ZINL13313 Inlet 563.5 567.5 4.0 567.0 0.0 126.8 NO 568.4 0.0 192.8 NO 569.5 0.0 233.7 YES 569.6 0.0 556.3 YES INLT10416 A3 ZINL12855 Inlet 558.7 562.7 4.0 561.2 0.0 30.9 NO 562.5 0.0 39.7 NO 563.2 0.0 43.2 NO 563.3 0.0 43.1 NO OTLT10117 A3 ZOUT10250 Outlet 556.9 560.9 4.0 559.8 9.1 36.6 NO 560.4 16.7 51.2 NO 560.7 25.5 63.3 NO 560.9 29.2 68.0 NO OTLT10118 A3 OUT098 Outlet 541.2 547.2 6.0 544.1 1.8 110.1 NO 545.1 2.9 197.5 NO 545.9 4.2 285.9 NO 546.2 4.7 321.3 NO CBIN10987 A3 CI1207 Curb Inlet 568.5 575.4 6.9 569.5 0.0 33.2 NO 569.9 0.0 60.5 NO 570.2 0.0 76.7 NO 570.2 0.0 80.0 NO OTHR10709 A3 OUT10039 Other 561.8 566.9 5.1 562.4 2.8 42.8 NO 562.8 5.3 86.4 NO 563.1 8.2 119.5 NO 563.2 9.5 131.8 NO CLEN10632 A3 CO11384 Cleanout 541.7 552.6 10.9 544.5 0.0 0.1 NO 545.9 0.0 0.2 NO 547.6 0.0 0.5 NO 549.1 0.0 0.4 NO CLEN10633 A3 CO41205 Cleanout 566.6 573.4 6.8 567.5 3.9 35.9 NO 567.9 7.2 66.2 NO 568.1 11.1 86.1 NO 568.1 12.8 89.8 NO CBIN10988 A3 CI41204 Curb Inlet 561.9 571.5 9.6 563.9 0.0 35.9 NO 564.8 0.0 66.2 NO 565.5 0.0 87.3 NO 565.5 0.0 90.5 NO CLEN10634 A3 CO41206 Cleanout 550.4 564.3 13.9 551.6 0.0 22.8 NO 552.2 0.0 50.0 NO 553.0 0.0 90.4 NO 554.7 0.0 104.2 NO CLEN10635 A3 CO41207 Cleanout 547.6 562.7 15.1 548.8 0.0 22.8 NO 549.4 0.0 49.7 NO 551.0 0.0 88.6 NO 552.9 0.0 103.1 NO CLEN10636 A3 CO41208 Cleanout 545.7 561.5 15.8 546.8 1.6 24.0 NO 547.6 3.0 51.6 NO 550.1 4.7 91.8 NO 558.5 5.4 105.8 NO CLEN10637 A3 CO41209 Cleanout 544.2 559.4 15.2 545.9 5.8 28.8 NO 547.0 10.0 59.4 NO 549.6 15.5 101.0 NO 552.7 17.9 116.0 NO CLEN10638 A3 CO41211 Cleanout 542.7 553.1 10.4 544.8 0.0 66.7 NO 546.2 0.0 113.5 NO 550.1 0.0 158.3 NO 549.5 0.0 176.3 NO CLEN10639 A3 CO41212 Cleanout 541.6 552.2 10.5 544.5 7.9 73.2 NO 545.9 13.8 125.2 NO 548.1 21.5 172.2 NO 548.2 24.8 192.9 NO CLEN10640 A3 CO41213 Cleanout 541.5 551.9 10.4 544.4 0.0 73.2 NO 545.7 0.0 125.2 NO 547.8 0.0 172.2 NO 547.8 0.0 192.9 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 60 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10641 A3 Cleanout 572.3 585.7 13.4 577.6 0.0 335.8 NO 585.7 0.0 459.6 NO 586.0 0.0 563.1 NO 586.0 0.0 572.2 NO CBIN10989 A3 CI0384 Curb Inlet 576.9 588.7 11.8 577.9 5.7 5.7 NO 588.7 9.2 9.2 NO 588.8 13.6 13.6 NO 588.8 15.3 15.3 NO CLEN10642 A3 ZCO10881 Cleanout 526.6 534.3 7.8 533.2 1.7 24.6 NO 537.1 2.7 40.0 YES 540.4 3.8 58.5 YES 542.2 4.3 65.3 YES OTLT10119 A3 ZOUT10315 Outlet 559.5 568.4 8.9 560.5 0.0 27.8 NO 560.8 0.0 46.9 NO 561.1 0.0 69.7 NO 561.2 0.0 79.6 NO INLT10417 A3 Inlet 554.0 563.3 9.3 555.0 0.8 28.4 NO 555.3 1.3 47.9 NO 555.6 1.9 71.3 NO 555.7 2.2 81.4 NO OTHR10710 A3 ZOTHER10409Other 540.7 551.8 11.1 541.9 5.8 32.4 NO 542.4 9.8 54.8 NO 543.2 14.7 81.7 NO 545.3 16.7 93.2 NO INLT10418 A3 Inlet 551.8 561.4 9.7 552.7 0.0 28.5 NO 553.0 0.0 47.9 NO 553.3 0.0 71.4 NO 553.4 0.0 81.5 NO CLEN10643 A3 ZCO12633 Cleanout 555.4 563.9 8.5 556.4 21.1 21.1 NO 556.8 37.0 37.0 NO 557.1 56.5 56.5 NO 557.3 64.7 64.7 NO INLT10419 A3 ZINL12682 Inlet 565.1 569.1 4.0 567.1 0.5 16.5 NO 567.3 0.7 27.8 NO 567.5 1.0 41.0 NO 567.6 1.1 46.7 NO OTLT10120 A3 OUT10403 Outlet 566.3 570.3 4.0 566.9 1.2 2.7 NO 567.2 1.9 4.4 NO 567.3 2.9 6.6 NO 567.4 3.3 7.5 NO OTHR10711 A3 Other 565.0 569.0 4.0 566.5 0.0 19.0 NO 566.7 0.0 31.9 NO 567.0 0.0 47.4 NO 567.1 0.0 54.0 NO CLEN10644 A3 CO1620 Cleanout 568.3 577.1 8.8 571.0 0.0 13.5 NO 577.1 0.0 24.9 NO 578.7 0.0 37.4 YES 578.7 0.0 41.6 YES CBIN10990 A3 CI10663 Curb Inlet 570.6 575.4 4.7 571.5 10.7 10.7 NO 575.4 20.6 20.6 NO 579.0 32.6 32.6 YES 579.7 37.6 37.6 YES INLT10420 A3 ZINL12138 Inlet 545.2 551.6 6.4 548.2 0.0 230.0 NO 548.8 0.0 356.2 NO 549.3 0.0 459.0 NO 549.4 0.0 520.8 NO INLT10421 A3 ZINL10110 Inlet 543.4 547.4 4.0 547.1 19.3 175.9 NO 547.8 31.0 284.5 NO 548.4 46.0 394.1 NO 548.6 52.1 426.5 YES CLEN10645 A3 CO41210 Cleanout 543.3 556.9 13.6 545.7 0.0 66.6 NO 546.8 0.0 113.2 NO 550.1 0.0 158.3 NO 550.8 0.0 176.3 NO OTHR10712 A3 ZOTHER11414Other 519.0 526.4 7.5 521.8 0.4 118.9 NO 522.5 0.6 162.4 NO 523.2 0.9 220.7 NO 523.5 1.0 246.9 NO INLT10422 A3 INL088 Inlet 519.2 526.0 6.8 521.9 18.5 110.0 NO 522.6 30.2 151.7 NO 523.3 45.3 195.6 NO 523.6 51.6 217.0 NO INLT10423 A3 ZINL10542 Inlet 531.5 542.7 11.3 533.1 0.0 55.2 NO 536.4 0.0 98.1 NO 539.0 0.0 120.1 NO 540.1 0.0 137.8 NO CBIN10991 A3 CI0716 Curb Inlet 540.3 544.3 4.0 540.5 0.3 0.3 NO 540.6 0.5 0.5 NO 540.6 0.7 0.7 NO 540.6 0.8 0.8 NO INLT10424 A3 INL13142 Inlet 566.6 570.6 4.0 567.8 12.3 60.9 NO 568.3 19.5 99.5 NO 571.9 28.9 121.3 YES 572.7 32.7 128.2 YES INLT10425 A3 INL13141 Inlet 566.7 570.7 4.0 568.2 0.0 5.6 NO 568.8 0.0 12.3 NO 569.7 0.0 17.1 NO 570.0 0.0 18.7 NO INLT10426 A3 INL10541 Inlet 538.5 542.5 4.0 538.7 33.6 33.6 NO 538.7 54.8 54.8 NO 538.8 81.6 81.6 NO 540.1 94.6 94.6 NO INLT10427 A3 Inlet 552.2 567.5 15.3 553.0 0.0 22.9 NO 553.4 0.0 50.4 NO 553.9 0.0 90.8 NO 554.9 0.0 104.3 NO INLT10428 A3 Inlet 551.1 564.2 13.1 552.0 0.0 22.8 NO 552.5 0.0 49.9 NO 553.2 0.0 90.0 NO 554.7 0.0 104.5 NO INLT10429 A3 Inlet 536.2 541.3 5.1 536.5 0.0 55.2 NO 536.5 0.0 83.1 NO 538.5 0.0 120.2 NO 540.1 0.0 137.9 NO INLT10430 A3 Inlet 537.9 541.9 4.0 538.1 0.0 49.2 NO 538.2 0.0 74.1 NO 538.6 0.0 107.8 NO 540.1 0.0 123.6 NO INLT10431 A3 Inlet 517.0 521.0 4.0 519.8 6.5 115.3 NO 520.6 10.8 165.6 NO 521.4 16.3 228.5 NO 521.7 18.7 253.4 NO INLT10432 A3 Inlet 556.3 562.5 6.2 604.0 1.0 50.7 YES 646.1 1.6 75.1 YES 704.8 2.4 105.2 YES 734.1 2.7 118.4 YES INLT10433 A3 ZINL11887 Inlet 531.0 535.0 4.0 535.1 2.1 4.6 NO 539.0 3.4 3.4 YES 545.3 4.9 7.2 YES 548.7 5.5 6.5 YES CBIN10992 A3 CI0692 Curb Inlet 520.7 524.7 4.0 533.1 1.9 1.9 YES 536.3 3.0 3.0 YES 538.4 4.4 4.4 YES 540.0 5.0 5.0 YES CBIN10993 A3 CI0699 Curb Inlet 520.7 524.7 4.0 533.1 2.3 2.3 YES 536.3 3.8 3.8 YES 538.4 5.7 5.7 YES 540.0 6.5 6.5 YES CLEN10646 A3 ZCO10589 Cleanout 520.2 524.5 4.3 533.1 0.0 4.2 YES 536.3 0.0 6.0 YES 538.4 0.0 9.3 YES 540.0 0.0 10.7 YES CLEN10647 A3 ZCO12090 Cleanout 518.5 525.6 7.1 518.8 2.3 6.4 NO 518.9 3.8 10.5 NO 519.0 5.7 15.7 NO 519.1 6.5 17.8 NO CBIN10994 A3 CI10387 Curb Inlet 518.8 526.8 8.0 519.5 4.3 4.3 NO 519.7 6.9 6.9 NO 519.9 10.3 10.3 NO 520.0 11.7 11.7 NO CBIN10995 A3 CI10705 Curb Inlet 520.0 525.5 5.5 520.0 0.0 0.0 NO 520.0 0.0 0.0 NO 520.0 0.0 0.0 NO 520.0 0.0 0.0 NO INLT10434 A3 ZINL12681 Inlet 523.0 527.0 4.0 523.0 0.0 0.0 NO 523.0 0.0 0.0 NO 523.0 0.0 0.0 NO 523.0 0.0 0.0 NO OTHR10713 A3 Other 554.7 558.7 4.0 556.8 0.0 11.4 NO 557.2 0.0 18.7 NO 557.5 0.0 27.8 NO 557.6 0.0 31.8 NO OTHR10714 A3 Other 554.0 558.0 4.0 554.7 0.0 10.2 NO 554.9 0.0 17.1 NO 555.4 0.0 25.4 NO 555.4 0.0 30.3 NO OTHR10715 A3 Other 589.0 593.0 4.0 591.1 0.0 24.4 NO 592.3 0.0 40.5 NO 593.9 0.0 76.0 NO 594.3 0.0 87.1 YES OTHR10716 A3 Other 588.9 592.9 4.0 591.1 0.0 21.7 NO 592.3 0.0 36.3 NO 593.9 0.0 96.9 NO 594.3 0.0 104.5 YES OTHR10717 A3 Other 588.6 592.6 4.0 590.5 0.0 19.3 NO 591.7 0.0 35.4 NO 593.2 0.0 96.7 NO 593.8 0.0 108.7 YES OTHR10718 A3 Other 588.5 592.5 4.0 590.5 0.0 17.8 NO 591.7 0.0 34.4 NO 593.2 0.0 81.8 NO 593.8 0.0 90.3 YES OTHR10719 A3 Other 540.5 544.5 4.0 546.4 0.0 172.2 YES 546.9 0.0 288.1 YES 547.1 0.0 394.6 YES 547.3 0.0 425.3 YES OTHR10720 A3 Other 542.3 546.3 4.0 546.8 0.0 174.0 NO 547.4 0.0 284.3 YES 547.9 0.0 392.9 YES 548.1 0.0 424.9 YES OTHR10721 A3 Other 568.4 572.4 4.0 570.0 0.0 26.7 NO 570.5 0.0 42.1 NO 570.8 0.0 58.8 NO 571.0 0.0 65.0 NO OTHR10722 A3 Other 564.7 568.7 4.0 567.1 0.0 26.6 NO 567.4 0.0 41.9 NO 567.8 0.0 58.8 NO 567.9 0.0 65.0 NO OTHR10723 A3 Other 561.1 565.1 4.0 562.8 0.0 27.0 NO 563.3 0.0 42.2 NO 563.5 0.0 58.6 NO 563.5 0.0 64.9 NO OTHR10724 A3 Other 557.4 561.4 4.0 559.4 0.0 26.4 NO 559.8 0.0 41.3 NO 560.1 0.0 58.5 NO 560.2 0.0 64.6 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 61 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10725 A3 Other 555.6 559.6 4.0 559.6 0.0 36.4 NO 560.1 0.0 50.8 NO 560.4 0.0 62.7 NO 560.6 0.0 67.4 NO OTHR10726 A3 Other 554.3 558.3 4.0 555.3 0.0 36.0 NO 555.4 0.0 50.6 NO 555.4 0.0 61.8 NO 555.4 0.0 65.8 NO OTHR10727 A3 Other 585.3 589.3 4.0 585.8 0.0 17.5 NO 586.0 0.0 33.7 NO 586.0 0.0 49.8 NO 586.1 0.0 55.9 NO OTHR10728 A3 Other 533.7 537.7 4.0 538.1 0.0 224.9 NO 538.5 0.0 360.0 NO 539.4 0.0 484.8 YES 541.0 0.0 508.2 YES OTHR10729 A3 Other 532.9 536.9 4.0 537.2 0.0 226.4 NO 538.1 0.0 357.2 YES 539.3 0.0 478.8 YES 541.0 0.0 491.7 YES OTHR10730 A3 Other 532.0 536.0 4.0 536.6 0.0 218.6 NO 537.7 0.0 359.3 YES 539.3 0.0 461.0 YES 540.9 0.0 454.3 YES OTHR10731 A3 Other 531.1 535.1 4.0 533.9 0.0 216.6 NO 536.8 0.0 366.4 YES 539.3 0.0 437.2 YES 540.9 0.0 414.9 YES OTHR10732 A3 Other 581.1 585.2 4.1 583.1 0.0 32.6 NO 583.6 0.0 59.0 NO 583.8 0.0 92.3 NO 584.4 0.0 104.3 NO OTHR10733 A3 Other 580.0 584.1 4.1 580.9 0.0 31.7 NO 581.0 0.0 57.7 NO 583.1 0.0 105.1 NO 584.3 0.0 112.1 NO OTHR10734 A3 Other 529.6 533.6 4.0 533.2 0.0 219.8 NO 536.8 0.0 360.5 YES 539.2 0.0 429.3 YES 540.9 0.0 391.8 YES OTHR10735 A3 Other 527.3 531.3 4.0 533.2 0.0 267.4 YES 536.6 0.0 413.3 YES 539.0 0.0 507.0 YES 540.6 0.0 578.6 YES OTHR10736 A3 Other 526.9 530.9 4.0 533.2 0.0 261.0 YES 536.6 0.0 398.2 YES 539.0 0.0 471.2 YES 540.6 0.0 527.8 YES OTHR10737 A3 Other 526.4 530.4 4.0 533.2 0.0 253.7 YES 536.5 0.0 379.4 YES 539.0 0.0 420.1 YES 540.6 0.0 454.6 YES OTHR10738 A3 Other 525.9 529.9 4.0 533.2 0.0 247.8 YES 536.5 0.0 358.4 YES 539.0 0.0 364.4 YES 540.6 0.0 375.9 YES OTHR10739 A3 Other 525.5 529.5 4.0 533.2 0.0 245.0 YES 536.5 0.0 330.5 YES 539.0 0.0 313.5 YES 540.6 0.0 309.4 YES OTHR10740 A3 Other 525.0 529.0 4.0 533.1 0.0 244.1 YES 536.5 0.0 301.8 YES 539.0 0.0 266.1 YES 540.6 0.0 255.1 YES OTHR10741 A3 Other 524.6 528.6 4.0 533.1 0.0 243.9 YES 536.5 0.0 274.9 YES 539.0 0.0 245.5 YES 540.6 0.0 258.7 YES OTHR10742 A3 Other 559.6 563.6 4.0 561.3 0.0 31.7 NO 562.5 0.0 43.9 NO 563.2 0.0 50.0 NO 563.3 0.0 50.2 NO OTHR10743 A3 Other 529.2 533.2 4.0 533.2 0.0 225.6 NO 536.7 0.0 361.9 YES 539.1 0.0 417.8 YES 540.8 0.0 388.0 YES OTHR10744 A3 Other 528.3 532.3 4.0 533.2 0.0 225.6 NO 536.6 0.0 358.5 YES 539.0 0.0 413.6 YES 540.7 0.0 384.4 YES OTHR10745 A3 Other 527.8 532.3 4.5 529.8 0.0 100.1 NO 530.1 0.0 144.8 NO 530.5 0.0 182.5 NO 530.6 0.0 204.0 NO OTHR10746 A3 Other 591.0 595.0 4.0 592.6 0.0 27.2 NO 593.3 0.0 48.3 NO 594.0 0.0 76.2 NO 594.2 0.0 87.5 NO OTHR10747 A3 Other 587.1 591.1 4.0 588.7 0.0 25.6 NO 588.8 0.0 46.5 NO 589.1 0.0 75.0 NO 589.1 0.0 86.1 NO OTHR10748 A3 Other 583.2 587.2 4.0 584.8 0.0 25.1 NO 585.2 0.0 43.6 NO 585.6 0.0 70.2 NO 585.8 0.0 83.2 NO OTHR10749 A3 Other 577.5 581.5 4.0 579.4 0.0 26.7 NO 579.8 0.0 42.0 NO 580.1 0.0 64.7 NO 580.2 0.0 80.0 NO OTHR10750 A3 Other 539.9 545.7 5.8 543.5 0.0 109.7 NO 544.6 0.0 196.7 NO 545.4 0.0 284.6 NO 545.7 0.0 319.6 NO OTHR10751 A3 Other 538.5 544.3 5.8 542.5 0.0 108.4 NO 543.5 0.0 193.2 NO 544.4 0.0 278.9 NO 544.7 0.0 309.5 NO OTHR10752 A3 Other 537.1 543.0 5.8 540.1 0.0 108.2 NO 541.0 0.0 191.9 NO 541.7 0.0 270.9 NO 541.9 0.0 306.5 NO OTHR10753 A3 Other 535.8 541.6 5.8 539.4 0.0 107.3 NO 540.2 0.0 187.9 NO 540.9 0.0 263.7 NO 541.2 0.0 298.9 NO OTHR10754 A3 Other 534.4 540.2 5.8 537.3 0.0 106.8 NO 537.8 0.0 185.0 NO 538.3 0.0 258.8 NO 539.1 0.0 294.6 NO OTHR10755 A3 Other 533.0 538.9 5.8 534.6 0.0 106.0 NO 536.0 0.0 185.8 NO 538.1 0.0 262.7 NO 539.0 0.0 295.9 NO OTHR10756 A3 Other 531.6 537.5 5.8 533.7 0.0 107.8 NO 535.9 0.0 182.6 NO 538.1 0.0 230.4 NO 539.0 0.0 253.7 YES OTHR10757 A3 Other 530.3 536.1 5.8 533.6 0.0 102.3 NO 535.9 0.0 137.7 NO 538.1 0.0 171.5 YES 539.0 0.0 181.9 YES OTHR10758 A3 Other 561.5 565.5 4.0 562.3 0.0 15.1 NO 562.7 0.0 24.8 NO 563.1 0.0 28.4 NO 563.2 0.0 27.2 NO OTHR10759 A3 Other 561.2 565.2 4.0 562.3 0.0 12.9 NO 562.7 0.0 19.0 NO 563.1 0.0 23.1 NO 563.2 0.0 23.7 NO OTHR10760 A3 Other 560.9 564.9 4.0 562.2 0.0 9.4 NO 562.7 0.0 13.2 NO 563.1 0.0 25.3 NO 563.2 0.0 30.7 NO OTHR10761 A3 Other 565.7 569.7 4.0 566.5 0.0 2.7 NO 566.8 0.0 4.4 NO 567.0 0.0 6.6 NO 567.1 0.0 7.5 NO OTHR10762 A3 Other 565.1 569.1 4.0 566.9 0.0 16.5 NO 567.1 0.0 27.7 NO 567.3 0.0 41.0 NO 567.4 0.0 46.7 NO OTHR10763 A3 Other 621.9 625.9 4.0 622.7 0.0 11.7 NO 622.9 0.0 20.7 NO 622.9 0.0 31.0 NO 623.0 0.0 35.4 NO OTHR10764 A3 Other 616.0 620.0 4.0 616.7 0.0 11.3 NO 616.9 0.0 20.8 NO 617.0 0.0 31.1 NO 617.1 0.0 35.6 NO OTHR10765 A3 Other 610.1 614.1 4.0 611.0 0.0 10.0 NO 611.2 0.0 18.8 NO 611.4 0.0 27.7 NO 611.4 0.0 31.4 NO OTHR10766 A3 Other 604.2 608.2 4.0 604.8 0.0 9.7 NO 605.0 0.0 17.1 NO 605.1 0.0 26.6 NO 605.1 0.0 30.3 NO OTHR10767 A3 Other 598.3 602.3 4.0 598.6 0.0 9.3 NO 598.7 0.0 16.5 NO 598.8 0.0 26.1 NO 598.8 0.0 30.1 NO OTHR10768 A3 Other 524.9 531.6 6.7 527.4 0.0 101.2 NO 527.7 0.0 146.4 NO 528.0 0.0 193.3 NO 528.1 0.0 215.9 NO OTHR10769 A3 Other 522.3 529.0 6.7 523.3 0.0 100.9 NO 523.5 0.0 146.5 NO 523.7 0.0 189.0 NO 523.9 0.0 213.1 NO OTHR10770 A3 Other 519.7 526.4 6.7 523.1 0.0 100.8 NO 523.4 0.0 146.1 NO 523.6 0.0 178.8 NO 523.8 0.0 197.2 NO OTHR10771 A3 Other 570.0 574.0 4.0 572.5 0.0 60.4 NO 572.9 0.0 100.1 NO 573.3 0.0 149.1 NO 573.3 0.0 171.2 NO OTHR10772 A3 Other 568.9 572.9 4.0 570.9 0.0 58.8 NO 571.3 0.0 98.2 NO 572.0 0.0 147.7 NO 572.8 0.0 174.5 NO OTHR10773 A3 Other 567.7 571.7 4.0 570.1 0.0 57.3 NO 570.5 0.0 94.4 NO 572.0 0.0 144.3 NO 572.7 0.0 150.0 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 62 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10774 A3 Other 567.6 571.6 4.0 568.2 0.0 3.8 NO 568.8 0.0 7.2 NO 569.7 0.0 11.8 NO 570.0 0.0 13.3 NO OTHR10775 A3 Other 538.5 542.5 4.0 542.5 0.0 225.6 NO 543.1 0.0 358.9 NO 543.5 0.0 482.7 NO 543.6 0.0 519.9 YES OTHR10776 A3 Other 537.6 541.6 4.0 540.8 0.0 225.1 NO 541.2 0.0 358.4 NO 541.4 0.0 482.6 NO 541.5 0.0 519.7 NO OTHR10777 A3 Other 536.6 540.6 4.0 539.1 0.0 225.2 NO 539.7 0.0 359.6 NO 540.1 0.0 482.8 NO 541.0 0.0 520.2 NO OTHR10778 A3 Other 535.6 539.6 4.0 538.7 0.0 224.0 NO 539.2 0.0 356.9 NO 539.6 0.0 480.6 NO 541.0 0.0 512.6 YES OTHR10779 A3 Other 544.8 549.6 4.8 548.1 0.0 226.7 NO 548.7 0.0 352.6 NO 549.2 0.0 452.5 NO 549.3 0.0 512.9 NO OTHR10780 A3 Other 544.5 549.3 4.8 547.8 0.0 212.2 NO 548.5 0.0 336.8 NO 549.0 0.0 425.6 NO 549.2 0.0 480.8 NO OTHR10781 A3 Other 544.1 549.0 4.8 547.6 0.0 191.8 NO 548.4 0.0 307.1 NO 548.9 0.0 397.8 NO 549.0 0.0 428.6 NO OTHR10782 A3 Other 543.8 548.6 4.8 547.4 0.0 176.4 NO 548.2 0.0 284.5 NO 548.7 0.0 387.2 NO 548.8 0.0 418.3 NO OTHR10783 A3 Other 577.7 585.9 8.2 578.6 0.0 7.1 NO 578.8 0.0 11.2 NO 579.1 0.0 16.4 NO 579.2 0.0 18.6 NO OTHR10784 A3 Other 575.3 583.5 8.2 576.4 0.0 6.7 NO 576.6 0.0 10.6 NO 576.8 0.0 15.4 NO 576.9 0.0 17.2 NO OTHR10785 A3 Other 573.0 581.2 8.2 573.8 0.0 6.7 NO 573.9 0.0 10.3 NO 574.1 0.0 14.5 NO 574.1 0.0 14.9 NO OTHR10786 A3 Other 570.6 578.8 8.2 571.7 0.0 6.0 NO 572.0 0.0 9.7 NO 572.3 0.0 13.8 NO 572.4 0.0 14.5 NO OTHR10787 A3 Other 568.3 576.5 8.2 569.4 0.0 5.7 NO 569.7 0.0 9.1 NO 569.8 0.0 12.3 NO 569.8 0.0 12.7 NO OTHR10788 A3 Other 565.9 574.1 8.2 566.7 0.0 5.3 NO 567.0 0.0 8.9 NO 567.1 0.0 12.1 NO 567.1 0.0 12.6 NO OTHR10789 A3 Other 563.6 571.8 8.2 564.5 0.0 5.3 NO 564.7 0.0 8.7 NO 564.9 0.0 11.9 NO 564.9 0.0 12.4 NO OTHR10790 A3 Other 561.2 569.4 8.2 562.0 0.0 5.1 NO 562.2 0.0 8.1 NO 562.3 0.0 11.5 NO 562.7 0.0 18.2 NO OTHR10791 A3 Other 558.9 567.1 8.2 560.1 0.0 4.9 NO 560.3 0.0 7.4 NO 560.4 0.0 11.0 NO 567.1 0.0 55.2 NO OTHR10792 A3 Other 557.1 564.7 7.6 558.6 0.0 4.3 NO 559.3 0.0 7.1 NO 560.2 0.0 10.4 NO 565.3 0.0 408.5 NO OTHR10793 A3 Other 563.5 567.5 4.0 565.3 0.0 19.0 NO 565.7 0.0 31.7 NO 565.9 0.0 47.3 NO 566.0 0.0 53.8 NO OTHR10794 A3 Other 562.0 566.0 4.0 564.7 0.0 18.3 NO 564.9 0.0 30.8 NO 565.2 0.0 46.7 NO 565.3 0.0 53.2 NO OTHR10795 A3 Other 560.5 564.5 4.0 562.0 0.0 17.6 NO 562.3 0.0 30.8 NO 562.5 0.0 45.9 NO 562.6 0.0 52.7 NO OTHR10796 A3 Other 559.0 563.0 4.0 560.7 0.0 17.2 NO 561.0 0.0 30.2 NO 561.2 0.0 45.3 NO 561.3 0.0 51.9 NO OTHR10797 A3 Other 557.5 561.5 4.0 559.1 0.0 16.3 NO 559.5 0.0 31.9 NO 560.0 0.0 45.1 NO 560.0 0.0 51.6 NO OTHR10798 A3 Other 555.9 559.9 4.0 558.1 0.0 15.0 NO 558.9 0.0 29.6 NO 560.0 0.0 44.0 NO 560.0 0.0 50.5 NO OTHR10799 A3 Other 567.1 571.1 4.0 570.8 0.0 117.9 NO 571.3 0.0 175.3 NO 571.7 0.0 210.1 NO 571.8 0.0 222.4 NO OTHR10800 A3 Other 566.6 570.6 4.0 570.0 0.0 114.5 NO 570.5 0.0 174.0 NO 570.8 0.0 208.4 NO 570.9 0.0 221.9 NO OTHR10801 A3 Other 566.2 570.2 4.0 569.1 0.0 112.5 NO 569.6 0.0 171.5 NO 570.1 0.0 206.3 NO 570.1 0.0 221.7 NO OTHR10802 A3 Other 565.5 569.5 4.0 568.6 0.0 111.5 NO 569.1 0.0 171.1 NO 569.8 0.0 206.6 NO 569.8 0.0 258.5 NO OTHR10803 A3 Other 564.4 568.4 4.0 567.3 0.0 126.9 NO 568.5 0.0 193.2 NO 569.5 0.0 234.1 YES 569.6 0.0 474.5 YES OTHR10804 A3 Other 540.4 544.4 4.0 543.4 0.0 8.0 NO 544.5 0.0 12.7 NO 545.6 0.0 18.0 YES 546.0 0.0 20.7 YES OTHR10805 A3 Other 540.5 544.5 4.0 543.5 0.0 53.2 NO 544.6 0.0 64.6 NO 545.7 0.0 80.8 YES 546.1 0.0 88.0 YES CBIN10996 A3 CI0195 Curb Inlet 538.5 542.5 4.0 538.5 0.0 0.0 NO 538.5 0.0 0.0 NO 538.5 0.0 0.0 NO 538.5 0.0 0.1 NO CBIN10997 A3 CI0194 Curb Inlet 539.3 543.3 4.0 539.3 0.0 0.0 NO 539.3 0.0 0.0 NO 539.3 0.0 0.0 NO 539.3 0.0 0.0 NO OTHR10806 A3 ZOTHER10259Other 534.9 538.9 4.0 536.4 2.3 24.7 NO 537.3 3.8 39.8 NO 538.4 5.7 56.7 NO 539.0 6.5 68.5 NO CBIN10998 A3 CI0193 Curb Inlet 536.6 540.6 4.0 537.4 0.0 15.7 NO 537.8 0.0 25.7 NO 538.6 0.0 38.4 NO 539.2 0.0 43.7 NO INLT10435 A3 ZINL10499 Inlet 539.1 543.1 4.0 539.6 15.7 15.7 NO 539.7 25.7 25.7 NO 539.8 38.4 38.4 NO 539.9 43.7 43.7 NO CBIN10999 A3 CI0196 Curb Inlet 534.9 538.9 4.0 536.5 0.0 7.9 NO 537.3 0.0 12.8 NO 538.4 0.0 17.8 NO 539.0 0.0 22.6 NO OTHR10807 A3 ZOTHER10279Other 527.6 531.6 4.0 533.5 7.3 9.3 YES 538.7 11.7 16.2 YES 544.9 17.4 17.4 YES 548.2 19.8 19.8 YES CBIN11000 A3 CI1391 Curb Inlet 528.5 532.5 4.0 533.5 0.0 3.9 NO 538.7 0.0 7.6 YES 544.9 0.0 5.0 YES 548.2 0.0 3.1 YES OTHR10808 A3 ZOTHER10280Other 524.1 528.1 4.0 528.9 2.3 41.7 NO 532.2 3.6 50.1 YES 536.0 5.2 58.7 YES 538.0 5.8 62.8 YES OTHR10809 A3 ZOTHER10281Other 525.2 529.2 4.0 530.8 4.3 41.2 YES 534.9 7.3 49.0 YES 539.7 11.1 57.5 YES 542.2 12.7 61.4 YES OTHR10810 A3 ZOTHER10282Other 525.6 529.6 4.0 531.4 3.2 38.9 YES 535.9 5.0 45.8 YES 541.0 7.3 53.8 YES 543.7 8.2 57.5 YES OTHR10811 A3 ZOTHER10283Other 523.4 527.4 4.0 527.4 1.7 44.4 NO 530.1 2.7 51.0 YES 533.2 4.0 59.8 YES 534.8 4.5 63.9 YES CBIN11001 A3 CI0701 Curb Inlet 521.6 525.6 4.0 533.1 0.0 0.4 YES 536.3 0.0 0.4 YES 538.3 0.0 0.4 YES 540.0 0.0 0.5 YES CBIN11002 A3 CI0691 Curb Inlet 520.9 524.9 4.0 533.1 0.0 0.4 YES 536.3 0.0 0.5 YES 538.4 0.0 0.5 YES 540.0 0.0 0.5 YES CLEN10648 A3 ZCO11063 Cleanout 519.9 523.9 4.0 533.1 0.0 1.1 YES 536.3 0.0 1.5 YES 538.3 0.0 1.4 YES 540.0 0.0 1.5 YES OTLT10121 A3 OUT10236 Outlet 517.1 521.1 4.0 533.1 4.3 65.3 YES 536.3 7.1 92.4 YES 538.3 10.8 154.4 YES 540.0 12.4 179.0 YES INLT10436 A3 ZINL12839 Inlet 518.4 522.4 4.0 533.1 4.7 64.1 YES 536.3 7.4 82.2 YES 538.4 10.7 145.8 YES 540.0 12.1 168.6 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 63 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10812 A3 ZOTHER10376Other 518.3 522.3 4.0 533.1 0.0 58.7 YES 536.3 0.0 71.4 YES 538.3 0.0 146.9 YES 540.0 0.0 169.9 YES OTLT10122 A3 ZOUT10034 Outlet 519.6 523.6 4.0 533.1 12.9 75.4 YES 536.3 20.6 100.2 YES 538.4 30.2 150.3 YES 540.0 34.1 171.5 YES CBIN11003 A3 CI1208 Curb Inlet 521.5 525.5 4.0 533.1 0.0 4.6 YES 536.4 0.0 1.9 YES 538.4 0.0 3.0 YES 540.0 0.0 3.8 YES CBIN11004 A3 CI1209 Curb Inlet 523.1 527.1 4.0 533.1 1.8 4.6 YES 536.4 2.8 2.8 YES 538.4 4.1 4.1 YES 540.0 4.7 4.7 YES INLT10437 A3 ZINL10642 Inlet 524.8 528.8 4.0 533.1 0.0 2.0 YES 536.4 0.0 0.7 YES 538.4 0.0 0.6 YES 540.0 0.0 0.5 YES CLEN10649 A3 ZCO12145 Cleanout 537.1 541.1 4.0 538.0 2.6 8.1 NO 538.3 4.1 13.0 NO 539.1 6.0 19.7 NO 541.2 6.8 22.2 NO CBIN11005 A3 CI0197 Curb Inlet 540.9 544.9 4.0 541.5 5.7 5.7 NO 541.7 9.2 9.2 NO 541.9 13.8 13.8 NO 542.0 15.7 15.7 NO OTHR10813 A3 ZOTHER10492Other 526.5 530.5 4.0 533.3 1.0 45.7 YES 538.5 1.5 49.5 YES 544.7 2.2 52.1 YES 547.9 2.5 55.7 YES OTLT10123 A3 ZOUT10041 Outlet 521.3 525.3 4.0 521.4 0.0 9.1 NO 521.4 0.0 14.5 NO 521.5 0.0 21.2 NO 521.8 0.0 25.0 NO CBIN11006 A3 CI1394 Curb Inlet 527.0 531.0 4.0 533.5 0.0 50.7 YES 538.7 0.0 57.7 YES 544.9 0.0 51.6 YES 548.2 0.0 55.2 YES CLEN10650 A3 ZCO10726 Cleanout 529.9 533.9 4.0 534.0 4.1 41.0 NO 538.8 6.5 61.1 YES 545.1 9.4 52.5 YES 548.3 10.6 55.5 YES CLEN10651 A3 ZCO10727 Cleanout 530.9 534.9 4.0 534.9 3.2 39.0 NO 539.0 5.1 57.9 YES 545.3 7.5 51.8 YES 548.7 8.5 56.0 YES CLEN10652 A3 ZCO11562 Cleanout 531.4 535.4 4.0 535.4 0.0 35.1 NO 539.2 0.0 54.0 YES 545.5 0.0 55.6 YES 548.9 0.0 61.3 YES CLEN10653 A3 ZCO11563 Cleanout 532.2 536.2 4.0 533.8 13.3 34.9 NO 539.4 21.1 56.3 YES 545.9 31.0 72.1 YES 549.3 35.0 80.9 YES CBIN11007 A3 CI10494 Curb Inlet 532.2 536.2 4.0 533.8 0.0 0.1 NO 539.4 0.0 2.5 YES 545.9 0.0 6.1 YES 549.3 0.0 6.6 YES CBIN11008 A3 CI10495 Curb Inlet 532.9 536.9 4.0 533.9 0.0 0.5 NO 539.4 0.0 3.6 YES 545.9 0.0 6.0 YES 549.3 0.0 5.9 YES CBIN11009 A3 CI10496 Curb Inlet 531.1 535.1 4.0 535.2 0.0 6.7 NO 538.8 0.0 5.6 YES 545.1 0.0 7.5 YES 548.3 0.0 5.7 YES CBIN11010 A3 CI10497 Curb Inlet 530.9 534.9 4.0 534.9 0.0 1.3 NO 538.8 0.0 5.5 YES 545.1 0.0 2.8 YES 548.3 0.0 3.1 YES OTHR10814 A3 ZOTHER10665Other 531.4 535.4 4.0 535.4 0.0 3.2 NO 539.2 0.0 6.4 YES 545.5 0.0 4.5 YES 548.9 0.0 6.1 YES CBIN11011 A3 CI1139 Curb Inlet 516.1 520.1 4.0 516.1 0.0 0.0 NO 516.1 0.0 0.0 NO 516.1 0.0 0.0 NO 516.1 0.0 0.0 NO INLT10438 A3 INL079 Inlet 515.8 519.8 4.0 515.8 0.0 0.0 NO 515.8 0.0 0.0 NO 515.8 0.0 0.0 NO 515.8 0.0 0.0 NO OTHR10815 A3 ZOTHER10823Other 511.1 515.1 4.0 512.2 0.0 285.7 NO 513.1 0.0 723.9 NO 513.4 0.0 896.9 NO 513.6 0.0 975.4 NO CBIN11012 A3 CI0891 Curb Inlet 513.0 517.0 4.0 513.6 3.2 3.2 NO 513.7 5.4 5.4 NO 513.9 8.1 8.1 NO 514.0 9.3 9.3 NO CBIN11013 A3 CI1144 Curb Inlet 516.1 520.1 4.0 516.1 0.0 0.0 NO 516.1 0.0 0.0 NO 516.1 0.0 0.0 NO 516.1 0.0 0.0 NO OTHR10816 A3 ZOTHER11364Other 511.7 515.7 4.0 512.6 4.0 181.2 NO 513.6 7.7 609.6 NO 513.9 13.0 673.2 NO 514.0 15.4 711.5 NO OTHR10817 A3 ZOTHER11448Other 516.7 520.7 4.0 533.1 2.9 438.3 YES 536.3 4.7 642.4 YES 538.3 7.0 902.2 YES 540.0 7.9 959.5 YES OTHR10818 A3 ZOTHER11562Other 520.7 524.7 4.0 533.1 4.4 73.2 YES 536.4 6.8 96.8 YES 538.4 9.8 131.4 YES 540.0 11.1 148.1 YES OTHR10819 A3 ZOTHER11563Other 521.6 525.6 4.0 533.1 15.1 64.7 YES 536.4 24.8 82.2 YES 538.4 37.3 107.3 YES 540.0 42.6 117.6 YES OTLT10124 A3 ZOTHER10285Outlet 521.8 525.8 4.0 521.8 1.1 51.3 NO 521.8 1.7 61.1 NO 521.8 2.4 73.4 NO 521.8 2.7 78.6 NO OTHR10820 A3 ZOTHER10284Other 522.3 526.3 4.0 526.3 9.5 51.1 NO 527.8 16.0 60.4 YES 530.3 24.3 72.4 YES 531.5 27.8 77.5 YES INLT10439 A3 INL11191 Inlet 511.8 515.8 4.0 512.7 31.0 178.7 NO 513.7 51.5 606.3 NO 513.9 77.4 668.4 NO 514.1 88.1 705.7 NO CLEN10654 A3 ZCO11564 Cleanout 533.8 537.8 4.0 535.1 23.3 23.3 NO 540.8 41.0 41.0 YES 548.6 63.3 63.3 YES 552.7 72.8 72.8 YES CBIN11014 A3 CI10493 Curb Inlet 534.6 538.6 4.0 535.2 0.0 0.0 NO 540.8 0.0 4.5 YES 548.6 0.0 4.5 YES 552.7 0.0 5.1 YES CBIN11015 A3 CI10673 Curb Inlet 533.8 537.8 4.0 535.1 0.0 0.0 NO 540.8 0.0 2.9 YES 548.6 0.0 4.0 YES 552.7 0.0 6.6 YES OTHR10821 A3 ZOTHER10395Other 542.2 550.2 7.9 544.0 0.0 172.6 NO 544.7 0.0 278.0 NO 546.2 0.0 533.9 NO 547.0 0.0 563.4 NO CBIN11016 A3 CI1536 Curb Inlet 546.4 550.4 4.0 546.4 0.0 0.0 NO 546.4 0.0 0.0 NO 546.4 0.0 0.0 NO 546.9 0.0 0.3 NO OTHR10822 A3 ZOTHER10400Other 541.9 545.9 4.0 543.6 3.2 172.3 NO 544.3 5.0 278.3 NO 545.9 7.3 532.6 NO 546.8 8.2 564.9 NO CBIN11017 A3 CI1534 Curb Inlet 545.8 549.8 4.0 545.8 0.0 0.0 NO 545.8 0.0 0.0 NO 546.2 0.0 0.4 NO 547.0 0.0 0.5 NO INLT10440 A3 ZINL12093 Inlet 544.0 549.3 5.2 544.0 0.0 0.0 NO 544.0 0.0 0.0 NO 544.1 0.0 0.0 NO 544.7 0.0 4.9 NO CBIN11018 A3 CI1535 Curb Inlet 545.9 550.4 4.4 545.9 0.0 0.0 NO 545.9 0.0 0.0 NO 546.2 0.0 0.7 NO 547.2 0.0 7.6 NO OTHR10823 A3 ZOTHER10401Other 542.5 550.4 7.8 544.2 0.4 173.3 NO 544.9 0.6 279.1 NO 546.4 0.9 538.2 NO 547.1 1.0 568.1 NO CBIN11019 A3 CI0445 Curb Inlet 544.9 548.9 4.0 544.9 0.0 0.0 NO 544.9 0.0 0.0 NO 546.3 0.0 0.1 NO 547.0 0.0 0.0 NO CBIN11020 A3 CI0449 Curb Inlet 547.4 551.4 4.0 547.7 0.6 0.6 NO 547.8 1.1 1.1 NO 547.9 1.7 1.7 NO 547.9 1.9 1.9 NO INLT10441 A3 INL13140 Inlet 557.0 561.0 4.0 559.7 12.6 140.6 NO 560.9 20.5 248.4 NO 566.8 30.2 502.7 YES 567.3 34.2 512.7 YES CBIN11021 A3 CI1598 Curb Inlet 556.4 560.4 4.0 559.7 0.0 172.6 NO 560.8 0.0 257.1 NO 566.5 0.0 485.5 YES 567.0 0.0 500.2 YES OTHR10824 A3 ZOTHER11292Other 555.8 559.8 4.0 557.4 10.5 10.5 NO 558.1 16.9 16.9 NO 558.9 25.1 25.1 NO 559.0 28.5 28.5 NO OTHR10825 A3 ZOTHER11580Other 554.0 558.0 4.0 557.4 0.0 159.1 NO 558.1 0.0 265.6 NO 558.9 0.0 503.3 NO 559.0 0.0 520.0 NO OTHR10826 A3 ZOTHER11582Other 566.3 570.3 4.0 570.4 0.0 139.3 NO 571.3 0.0 246.3 NO 572.4 0.0 489.3 YES 572.4 0.0 493.8 YES OTHR10827 A3 ZOTHER11583Other 567.4 571.4 4.0 570.4 0.6 5.8 NO 571.3 1.1 11.8 NO 572.4 1.6 47.0 NO 572.4 1.9 39.3 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 64 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10828 A3 ZOTHER11607Other 542.8 551.1 8.2 544.5 2.0 173.2 NO 545.2 3.1 289.4 NO 546.8 4.4 573.2 NO 547.4 5.0 590.7 NO INLT10442 A3 INL13328 Inlet 543.4 551.8 8.5 545.8 3.3 162.3 NO 546.8 5.1 268.0 NO 548.8 7.4 510.3 NO 548.9 8.4 525.6 NO OTHR10829 A3 Other 566.0 570.0 4.0 570.4 0.0 139.2 NO 571.2 0.0 244.2 YES 572.3 0.0 489.1 YES 572.3 0.0 495.0 YES OTLT10125 A3 ZOUT10297 Outlet 554.4 558.4 4.0 558.2 0.0 190.9 NO 558.9 0.0 256.8 NO 560.0 0.0 485.5 YES 560.1 0.0 500.1 YES OTLT10126 A3 OUT10404 Outlet 556.3 560.3 4.0 559.6 0.0 182.9 NO 560.7 0.0 256.9 NO 566.4 0.0 485.5 YES 566.9 0.0 500.1 YES OTHR10830 A3 Other 556.9 562.7 5.8 559.7 0.0 175.8 NO 560.9 0.0 257.3 NO 566.7 0.0 485.6 YES 567.2 0.0 500.2 YES CBIN11022 A3 CI0855 Curb Inlet 558.4 562.4 4.0 559.7 0.0 0.2 NO 560.9 0.0 1.1 NO 566.7 0.0 2.2 YES 567.2 0.0 1.7 YES OTLT10127 A3 Outlet 556.4 560.4 4.0 559.7 0.0 177.9 NO 560.8 0.0 256.9 NO 566.5 0.0 485.5 YES 566.9 0.0 500.1 YES CLEN10655 A3 ZCO10522 Cleanout 528.7 533.5 4.8 533.6 2.3 48.7 NO 538.7 3.5 66.9 YES 545.0 5.1 54.6 YES 548.2 5.8 54.5 YES OTHR10831 A3 ZOTHER10676Other 531.0 535.0 4.0 535.0 0.0 5.1 NO 539.0 0.0 4.1 YES 545.3 0.0 10.7 YES 548.7 0.0 9.2 YES INLT10443 A3 ZINL12726 Inlet 521.3 526.4 5.0 522.2 1.6 9.1 NO 522.5 2.4 14.5 NO 522.9 3.5 21.2 NO 523.1 4.0 23.8 NO INLT10444 A3 Inlet 511.4 520.0 8.6 512.5 8.0 289.7 NO 513.4 13.1 731.2 NO 513.7 19.3 896.9 NO 513.8 22.3 975.4 NO CBIN11023 A3 CI0847 Curb Inlet 560.3 564.9 4.6 562.1 2.2 40.8 NO 566.2 3.6 65.1 YES 573.7 5.5 90.7 YES 577.4 6.3 101.9 YES OTHR10832 A3 Other 554.4 558.4 4.0 558.1 14.1 182.0 NO 558.9 22.7 267.2 NO 560.0 33.5 500.6 YES 560.0 38.3 518.5 YES OTLT10128 A3 OUT067 Outlet 566.5 572.4 5.9 570.6 0.0 137.9 NO 571.6 0.0 246.6 NO 572.9 0.0 483.4 NO 572.9 0.0 486.5 NO OTLT10129 A3 ZINL11843 Outlet 568.3 572.3 4.0 568.3 0.0 1.9 NO 568.3 0.0 3.1 NO 568.3 0.0 4.6 NO 568.3 0.0 5.2 NO OTHR10833 A3 ZOTHER11579Other 553.3 557.3 4.0 554.6 9.9 161.9 NO 554.9 15.7 267.5 NO 555.4 23.0 509.5 NO 555.4 26.1 524.7 NO OTHR10834 A3 ZOTHER10375Other 518.9 526.6 7.7 533.1 0.0 3.6 YES 536.3 0.0 5.5 YES 538.3 0.0 9.0 YES 540.0 0.0 10.2 YES OTHR10835 A3 ZOTHER10402Other 543.9 550.5 6.6 544.4 5.0 28.3 NO 544.9 8.0 48.6 NO 546.3 11.9 73.8 NO 547.0 13.5 84.4 NO OTHR10836 A3 Other 610.0 614.0 4.0 612.1 0.0 115.5 NO 613.6 0.0 376.9 NO 614.5 0.0 634.1 NO 614.7 0.0 705.0 NO OTHR10837 A3 Other 607.5 611.5 4.0 609.5 0.0 109.3 NO 611.1 0.0 371.0 NO 612.0 0.0 630.0 NO 612.2 0.0 701.8 NO OTHR10838 A3 Other 605.0 609.0 4.0 606.9 0.0 102.3 NO 608.6 0.0 371.3 NO 609.5 0.0 629.2 NO 609.7 0.0 701.1 NO OTHR10839 A3 Other 602.5 606.7 4.1 604.4 0.0 94.6 NO 606.0 0.0 367.5 NO 607.3 0.0 628.7 NO 608.2 0.0 700.0 YES OTHR10840 A3 Other 600.0 605.2 5.1 601.2 0.0 86.5 NO 603.0 0.0 349.8 NO 606.6 0.0 618.4 YES 607.8 0.0 659.6 YES OTHR10841 A3 Other 599.9 605.0 5.1 600.5 1.1 87.2 NO 602.8 2.5 349.2 NO 606.6 4.1 579.5 YES 607.8 4.7 633.7 YES OTHR10842 A3 Other 597.7 604.0 6.3 599.4 0.0 84.1 NO 601.3 0.0 339.0 NO 602.2 0.0 570.0 NO 602.4 0.0 632.2 NO OTHR10843 A3 Other 594.7 605.1 10.4 596.3 0.0 67.9 NO 598.0 0.0 324.6 NO 598.9 0.0 571.2 NO 599.1 0.0 632.3 NO OTHR10844 A3 Other 592.2 600.7 8.5 593.4 0.0 63.7 NO 594.7 0.0 307.4 NO 595.7 0.0 567.8 NO 595.9 0.0 631.1 NO OTHR10845 A3 Other 589.7 596.4 6.7 591.1 0.0 70.8 NO 592.8 0.0 306.2 NO 593.9 0.0 567.2 NO 594.1 0.0 630.8 NO OTHR10846 A3 Other 587.2 593.2 6.0 588.7 0.0 55.2 NO 590.4 0.0 292.4 NO 591.4 0.0 566.0 NO 591.6 0.0 630.4 NO OTHR10847 A3 Other 584.8 590.8 6.0 586.2 0.0 52.1 NO 587.9 0.0 282.8 NO 589.0 0.0 565.4 NO 589.2 0.0 630.1 NO OTHR10848 A3 Other 582.4 588.4 6.0 583.8 3.3 50.6 NO 585.5 6.4 278.4 NO 586.6 9.9 569.5 NO 586.8 11.3 635.2 NO OTHR10849 A3 Other 580.0 586.0 6.0 581.3 0.0 47.7 NO 583.0 0.0 267.4 NO 584.2 0.0 568.6 NO 584.4 0.0 634.9 NO OTHR10850 A3 Other 577.6 583.6 6.0 578.8 0.0 45.3 NO 580.3 0.0 257.9 NO 581.4 0.0 567.2 NO 581.6 0.0 634.6 NO OTHR10851 A3 Other 575.5 581.5 6.0 575.9 0.0 44.6 NO 576.5 0.0 257.1 NO 577.8 0.0 564.9 NO 578.3 0.0 634.1 NO OTHR10852 A3 Other 517.0 523.5 6.5 517.7 0.0 6.4 NO 517.9 0.0 10.5 NO 518.0 0.0 15.8 NO 518.1 0.0 17.9 NO OTHR10853 A3 Other 515.7 519.7 4.0 516.2 0.0 5.1 NO 516.4 0.0 8.6 NO 516.5 0.0 12.0 NO 516.6 0.0 14.1 NO OTHR10854 A3 Other 514.4 518.4 4.0 515.1 0.0 4.2 NO 515.2 0.0 7.2 NO 515.2 0.0 9.9 NO 515.2 0.0 11.1 NO OTHR10855 A3 Other 513.1 517.1 4.0 513.5 0.0 3.6 NO 513.7 0.0 14.8 NO 514.0 0.0 25.3 NO 514.1 0.0 28.9 NO OTHR10856 Other 552.2 556.2 4.0 552.6 0.0 30.4 NO 552.7 0.0 49.2 NO 553.7 0.0 70.2 NO 554.2 0.0 81.5 NO OTHR10857 A4 ZOTHER10009Other 802.4 812.9 10.5 802.8 0.0 3.5 NO 803.0 0.0 6.7 NO 803.8 0.0 10.3 NO 811.3 0.0 13.4 NO OTHR10858 A4 ZOTHER10010Other 725.5 747.5 22.0 726.7 0.0 97.7 NO 727.2 0.0 195.5 NO 727.8 0.0 300.3 NO 727.8 0.0 326.1 NO OTHR10859 A4 ZOTHER10011Other 875.8 885.3 9.5 876.5 0.0 20.8 NO 876.8 0.0 47.6 NO 877.1 0.0 76.6 NO 877.5 0.0 88.4 NO CLEN10656 A4 ZCO12333 Cleanout 835.8 847.4 11.6 836.7 1.0 33.3 NO 837.1 1.6 64.8 NO 837.6 2.3 100.3 NO 837.8 2.6 116.1 NO OTHR10860 A4 ZOTHER10012Other 866.8 877.1 10.3 867.6 10.5 30.3 NO 868.0 19.9 60.1 NO 868.5 30.6 93.3 NO 868.7 35.0 108.0 NO OTLT10130 A4 OUT057 Outlet 671.0 678.1 7.0 672.4 0.9 153.1 NO 672.9 1.6 301.0 NO 673.3 2.4 455.4 NO 673.4 2.7 493.8 NO CLEN10657 A4 ZCO11504 Cleanout 801.3 813.2 11.9 802.2 7.7 10.9 NO 802.6 14.8 21.1 NO 803.8 23.0 32.1 NO 812.0 26.5 35.7 NO CLEN10658 A4 ZCO12994 Cleanout 758.1 768.0 9.9 758.8 0.0 23.3 NO 759.1 0.0 43.9 NO 759.3 0.0 65.9 NO 759.4 0.0 75.7 NO CLEN10659 A4 ZCO12995 Cleanout 797.8 811.8 13.9 798.4 1.6 12.4 NO 798.6 2.5 23.5 NO 798.8 3.7 34.6 NO 798.9 4.2 39.4 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 65 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10660 A4 ZCO12336 Cleanout 803.3 814.1 10.8 803.8 0.0 3.5 NO 804.0 0.0 6.7 NO 804.3 0.0 10.4 NO 805.4 0.0 12.2 NO CBIN11024 A4 CI10015 Curb Inlet 791.4 810.7 19.3 791.8 2.1 14.4 NO 791.9 3.3 26.7 NO 792.0 4.8 38.9 NO 792.1 5.4 44.5 NO INLT10445 A4 ZINL12996 Inlet 773.3 791.9 18.6 774.0 0.0 14.4 NO 774.3 0.0 26.7 NO 774.5 0.0 38.9 NO 774.6 0.0 44.5 NO CLEN10661 A4 ZCO12997 Cleanout 768.6 778.8 10.2 769.4 9.1 23.3 NO 769.8 17.6 43.8 NO 770.1 27.1 65.9 NO 770.3 31.1 75.3 NO CBIN11025 A4 CI10019 Curb Inlet 736.4 763.6 27.2 737.4 12.9 12.9 NO 744.6 27.3 27.3 NO 746.2 43.1 43.1 NO 747.5 49.8 49.8 NO CLEN10662 A4 ZCO12998 Cleanout 740.1 748.0 7.9 740.8 0.0 23.3 NO 741.1 0.0 43.9 NO 741.5 0.0 66.0 NO 743.8 0.0 75.6 NO CLEN10663 A4 ZCO11910 Cleanout 805.8 816.6 10.8 806.3 3.6 3.6 NO 806.5 6.8 6.8 NO 806.7 10.6 10.6 NO 806.8 12.2 12.2 NO INLT10446 A4 ZINL13079 Inlet 812.0 832.6 20.5 812.0 0.0 0.0 NO 812.0 0.0 0.0 NO 812.0 0.0 0.0 NO 812.0 0.0 0.0 NO INLT10447 A4 ZINL10154 Inlet 568.5 578.5 10.0 568.9 0.0 11.9 NO 569.0 0.0 19.4 NO 569.1 0.0 29.4 NO 569.1 0.0 33.7 NO CLEN10664 A4 ZCO10155 Cleanout 544.0 554.5 10.6 544.9 0.0 11.9 NO 545.1 0.0 19.4 NO 554.6 0.0 28.9 NO 554.7 0.0 33.3 NO CLEN10665 A4 ZCO10156 Cleanout 578.3 583.3 5.1 578.8 0.0 5.6 NO 579.0 0.0 9.5 NO 579.2 0.0 14.2 NO 579.3 0.0 16.1 NO CLEN10666 A4 ZCO11597 Cleanout 583.6 592.5 8.9 584.2 1.1 5.7 NO 584.4 1.7 9.5 NO 584.6 2.4 14.2 NO 584.7 2.8 16.2 NO CLEN10667 A4 ZCO10157 Cleanout 692.6 702.7 10.1 693.5 0.0 26.5 NO 693.8 0.0 53.9 NO 694.2 0.0 84.7 NO 694.3 0.0 97.9 NO CLEN10668 A4 ZCO10158 Cleanout 699.5 708.1 8.6 700.4 4.8 21.6 NO 700.8 9.0 44.6 NO 701.2 14.1 70.4 NO 701.4 16.3 81.5 NO CLEN10669 A4 ZCO11598 Cleanout 733.5 740.0 6.5 734.7 0.0 39.2 NO 735.3 0.0 75.7 NO 735.9 0.0 115.9 NO 740.1 0.0 131.5 NO CLEN10670 A4 ZCO10163 Cleanout 561.9 571.7 9.7 563.4 1.6 39.3 NO 564.2 2.7 66.8 NO 571.7 4.1 92.6 NO 573.1 4.7 94.6 YES CLEN10671 A4 ZCO10164 Cleanout 953.0 971.7 18.7 953.7 0.0 14.4 NO 954.1 0.0 31.6 NO 954.5 0.0 50.2 NO 954.6 0.0 58.7 NO OTHR10861 A4 ZOTHER10022Other 701.5 709.2 7.6 702.3 0.0 17.0 NO 702.6 0.0 35.7 NO 702.9 0.0 56.6 NO 703.1 0.0 65.6 NO CLEN10672 A4 ZCO11600 Cleanout 608.9 612.9 4.0 609.2 0.0 4.6 NO 609.3 0.0 7.3 NO 609.4 0.0 10.7 NO 609.4 0.0 12.1 NO INLT10448 A4 ZINL11601 Inlet 642.8 651.9 9.1 643.1 1.6 4.6 NO 643.2 2.4 7.3 NO 643.3 3.5 10.7 NO 643.3 4.0 12.1 NO CLEN10673 A4 ZCO12341 Cleanout 572.4 578.6 6.2 572.8 0.9 3.7 NO 573.0 1.4 5.8 NO 579.8 2.0 8.4 YES 582.9 2.3 13.3 YES CLEN10674 A4 ZCO12342 Cleanout 552.7 561.0 8.3 554.2 0.0 43.8 NO 554.8 0.0 74.5 NO 561.0 0.0 103.2 NO 561.0 0.0 117.0 NO CLEN10675 A4 ZCO12343 Cleanout 555.7 564.4 8.7 557.3 0.0 43.7 NO 557.9 0.0 74.4 NO 564.5 0.0 105.5 NO 564.5 0.0 127.1 NO CBIN11026 A4 CI1024 Curb Inlet 585.7 594.3 8.6 586.3 0.0 4.6 NO 586.5 0.0 7.9 NO 586.8 0.0 11.9 NO 586.9 0.0 13.5 NO CLEN10676 A4 ZCO11009 Cleanout 557.5 564.0 6.6 559.0 4.4 43.5 NO 559.5 8.1 74.1 NO 564.1 12.4 103.1 NO 565.0 14.2 109.2 NO CLEN10677 A4 ZCO12344 Cleanout 588.3 596.3 8.0 588.6 0.0 1.6 NO 588.7 0.0 2.6 NO 588.8 0.0 3.8 NO 588.8 0.0 4.3 NO OTHR10862 A4 ZOTHER10023Other 521.0 532.0 11.0 523.4 27.2 101.3 NO 524.8 46.4 169.7 NO 532.1 70.1 260.7 NO 532.2 79.9 291.5 NO OTHR10863 A4 ZOTHER10024Other 525.8 535.7 9.9 527.6 0.9 73.4 NO 528.3 1.5 121.4 NO 535.8 2.1 183.5 NO 536.4 2.3 189.4 NO OTHR10864 A4 ZOTHER10025Other 632.4 642.4 9.9 633.6 0.0 54.1 NO 634.1 0.0 102.8 NO 645.0 0.0 155.2 YES 648.4 0.0 158.8 YES OTHR10865 A4 ZOTHER10026Other 610.3 620.9 10.6 613.1 6.1 68.7 NO 622.2 9.8 127.6 YES 631.0 14.4 163.1 YES 632.6 16.3 172.4 YES CLEN10678 A4 ZCO12345 Cleanout 524.9 535.2 10.3 526.9 0.0 73.5 NO 527.8 0.0 121.5 NO 535.3 0.0 202.0 NO 535.5 0.0 205.8 NO CLEN10679 A4 ZCO12346 Cleanout 526.9 537.8 10.9 528.9 1.9 72.6 NO 529.6 3.0 120.2 NO 537.8 4.3 180.5 NO 537.9 4.8 181.4 NO CLEN10680 A4 ZCO11602 Cleanout 540.3 551.6 11.3 541.7 4.5 70.9 NO 542.2 7.1 117.6 NO 551.7 10.4 187.5 NO 551.7 11.7 189.8 NO CLEN10681 A4 ZCO11603 Cleanout 550.5 560.5 10.0 551.7 12.2 55.0 NO 552.1 19.8 92.1 NO 560.5 29.2 132.5 NO 560.6 33.0 144.0 NO INLT10449 A4 ZINL11604 Inlet 579.7 594.0 14.3 580.1 2.4 10.3 NO 580.3 4.3 17.1 NO 580.4 6.5 25.9 NO 580.6 7.4 29.4 NO CBIN11027 A4 CI0212 Curb Inlet 569.7 577.2 7.5 570.6 15.9 19.5 NO 571.0 27.6 33.3 NO 579.5 41.8 48.7 YES 582.6 47.8 52.1 YES CLEN10682 A4 ZCO10166 Cleanout 589.4 597.1 7.6 589.7 2.2 2.2 NO 589.8 3.9 3.9 NO 589.9 6.0 6.0 NO 590.0 6.9 6.9 NO CLEN10683 A4 ZCO10167 Cleanout 522.0 532.8 10.8 524.1 3.4 76.6 NO 525.4 5.3 126.5 NO 532.9 7.7 192.6 NO 532.9 8.6 197.8 NO CLEN10684 A4 ZCO10168 Cleanout 611.5 619.4 7.9 611.5 0.0 0.0 NO 611.5 0.0 0.0 NO 611.5 0.0 0.0 NO 611.5 0.0 0.0 NO CLEN10685 A4 ZCO11507 Cleanout 565.8 575.4 9.6 566.9 5.8 27.4 NO 567.4 10.1 47.2 NO 576.3 15.4 71.8 NO 579.3 17.5 73.1 YES CLEN10686 A4 ZCO11508 Cleanout 704.1 711.4 7.3 704.8 0.0 17.0 NO 705.2 0.0 35.7 NO 705.5 0.0 56.5 NO 705.6 0.0 65.4 NO CBIN11028 A4 CI0036 Curb Inlet 655.9 662.1 6.2 656.9 8.0 8.0 NO 657.4 13.2 13.2 NO 662.2 19.6 19.6 NO 662.2 22.1 22.1 NO INLT10450 A4 ZINL12935 Inlet 654.3 664.2 10.0 654.7 0.0 8.0 NO 654.8 0.0 13.0 NO 654.9 0.0 21.1 NO 654.9 0.0 23.5 NO CBIN11029 A4 CI10021 Curb Inlet 644.2 649.4 5.2 644.8 3.1 3.1 NO 645.0 5.0 5.0 NO 645.2 7.4 7.4 NO 645.2 8.3 8.3 NO CLEN10687 A4 ZCO11915 Cleanout 723.8 729.7 5.8 724.4 5.5 15.6 NO 724.7 11.5 33.3 NO 724.9 18.1 52.9 NO 725.0 20.9 61.3 NO OTHR10866 A4 ZOTHER10027Other 697.4 707.2 9.8 698.4 5.1 26.4 NO 698.8 9.5 53.8 NO 699.3 14.6 84.6 NO 699.5 16.7 97.7 NO CLEN10688 A4 ZCO12347 Cleanout 862.6 878.2 15.6 863.6 5.8 31.3 NO 864.3 9.9 70.4 NO 866.5 14.9 113.6 NO 878.2 16.9 131.6 NO OTHR10867 A4 ZOTHER10028Other 855.4 868.7 13.3 856.6 6.1 36.0 NO 857.3 12.5 81.1 NO 868.7 19.8 130.8 NO 868.7 22.9 149.9 NO CBIN11030 A4 ZCI10022 Curb Inlet 858.6 868.4 9.8 858.6 0.0 0.0 NO 858.6 0.0 0.0 NO 864.8 0.0 6.2 NO 868.4 0.0 11.7 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 66 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10689 A4 ZCO11605 Cleanout 599.7 607.1 7.5 599.9 0.0 1.6 NO 599.9 0.0 2.6 NO 600.0 0.0 3.8 NO 600.0 0.0 4.3 NO CLEN10690 A4 ZCO11606 Cleanout 673.5 683.5 10.0 674.5 2.7 36.6 NO 675.1 4.3 73.0 NO 675.6 6.2 113.6 NO 676.0 7.0 130.6 NO CLEN10691 A4 ZCO11607 Cleanout 670.1 681.8 11.6 671.2 0.8 44.5 NO 671.7 1.3 99.7 NO 672.2 2.0 142.4 NO 673.0 2.3 158.6 NO CLEN10692 A4 ZCO11608 Cleanout 629.9 640.4 10.5 631.1 0.0 58.1 NO 631.9 0.0 109.3 NO 643.7 0.0 155.9 YES 646.9 0.0 156.6 YES CLEN10693 A4 ZCO11609 Cleanout 607.0 616.9 9.9 608.2 0.0 66.7 NO 608.7 0.0 122.1 NO 609.0 0.0 160.6 NO 609.1 0.0 171.8 NO CLEN10694 A4 ZCO10169 Cleanout 588.5 599.0 10.4 589.7 0.0 69.0 NO 590.1 0.0 126.1 NO 590.4 0.0 165.2 NO 590.5 0.0 176.8 NO CLEN10695 A4 ZCO10170 Cleanout 651.9 661.6 9.7 653.0 0.0 47.4 NO 653.4 0.0 92.0 NO 654.5 0.0 141.1 NO 661.7 0.0 160.1 NO CLEN10696 A4 ZCO11510 Cleanout 945.8 961.0 15.2 946.4 2.4 16.7 NO 946.7 3.8 35.2 NO 947.0 5.6 55.6 NO 947.1 6.3 64.3 NO CLEN10697 A4 ZCO12348 Cleanout 855.6 866.6 11.1 856.5 2.3 32.4 NO 856.9 3.7 63.4 NO 857.3 5.3 98.2 NO 857.5 6.0 113.7 NO CLEN10698 A4 ZCO10171 Cleanout 895.4 907.6 12.3 896.1 3.0 20.5 NO 896.4 4.8 41.5 NO 896.7 7.0 64.8 NO 896.9 7.9 74.9 NO CLEN10699 A4 ZCO10172 Cleanout 873.3 883.7 10.4 874.0 0.0 20.5 NO 874.4 0.0 41.4 NO 874.7 0.0 64.8 NO 874.8 0.0 74.9 NO CLEN10700 A4 ZCO10173 Cleanout 834.3 845.9 11.6 835.2 0.0 33.3 NO 835.6 0.0 64.9 NO 836.0 0.0 100.3 NO 836.2 0.0 116.0 NO CLEN10701 A4 ZCO11610 Cleanout 773.7 786.4 12.7 775.2 0.0 78.9 NO 775.9 0.0 162.3 NO 786.4 0.0 260.2 NO 786.6 0.0 296.8 NO CLEN10702 A4 ZCO11611 Cleanout 831.3 843.0 11.7 832.4 7.0 78.9 NO 832.9 12.0 162.3 NO 833.4 18.3 257.0 NO 833.6 20.9 293.0 NO CLEN10703 A4 ZCO11612 Cleanout 788.3 799.9 11.6 789.4 0.0 78.8 NO 790.0 0.0 162.3 NO 790.6 0.0 257.5 NO 791.7 0.0 294.1 NO CLEN10704 A4 ZCO11613 Cleanout 764.3 775.3 11.0 765.9 0.0 78.8 NO 766.8 0.0 162.1 NO 775.3 0.0 262.4 NO 777.1 0.0 288.7 YES CLEN10705 A4 ZCO10174 Cleanout 753.7 764.5 10.8 755.4 6.6 97.5 NO 756.2 10.6 195.0 NO 764.5 15.6 307.1 NO 764.5 17.6 339.0 NO CLEN10706 A4 ZCO10175 Cleanout 744.3 753.7 9.4 745.5 0.0 97.7 NO 746.0 0.0 195.5 NO 746.5 0.0 303.8 NO 746.6 0.0 330.6 NO CLEN10707 A4 ZCO10176 Cleanout 685.4 696.4 11.1 687.2 0.0 146.6 NO 688.2 0.0 288.3 NO 700.6 0.0 443.4 YES 705.9 0.0 477.4 YES CLEN10708 A4 ZCO11509 Cleanout 719.1 750.8 31.7 720.8 0.0 42.7 NO 721.7 0.0 82.9 NO 750.8 0.0 122.3 NO 750.8 0.0 137.5 NO CLEN10709 A4 ZCO12349 Cleanout 929.6 943.2 13.6 930.2 1.2 17.8 NO 930.5 1.9 37.0 NO 930.8 2.8 58.3 NO 930.9 3.1 67.4 NO CBIN11031 A4 CI10023 Curb Inlet 576.9 591.0 14.1 577.8 2.4 75.0 NO 578.1 3.9 135.6 NO 578.3 5.6 176.5 NO 578.3 6.3 189.2 NO CBIN11032 A4 CI1023 Curb Inlet 589.2 598.5 9.3 589.7 4.7 4.7 NO 589.9 7.9 7.9 NO 590.1 11.9 11.9 NO 590.2 13.6 13.6 NO CLEN10710 A4 ZCO12351 Cleanout 606.9 615.0 8.0 607.2 1.6 1.6 NO 607.2 2.6 2.6 NO 607.3 3.8 3.8 NO 607.3 4.3 4.3 NO CLEN10711 A4 ZCO10177 Cleanout 579.4 585.4 6.0 579.8 1.3 2.9 NO 579.9 2.1 4.5 NO 580.3 3.0 6.6 NO 585.5 3.3 7.5 NO INLT10451 A4 ZINL12352 Inlet 954.4 958.4 4.0 955.3 14.4 14.4 NO 955.8 31.5 31.5 NO 956.4 50.2 50.2 NO 957.4 58.3 58.3 NO CBIN11033 A4 CI10026 Curb Inlet 604.7 612.3 7.6 604.7 0.0 0.0 NO 605.1 0.0 0.4 NO 605.4 0.0 0.1 NO 605.5 0.0 0.0 NO OTHR10868 A4 ZOTHER10029Other 603.3 612.8 9.5 604.6 2.7 69.0 NO 605.1 4.5 126.3 NO 605.4 6.8 165.2 NO 605.5 7.7 176.8 NO CBIN11034 A4 CI10027 Curb Inlet 608.9 616.3 7.4 608.9 0.0 0.0 NO 608.9 0.0 0.0 NO 609.0 0.0 0.0 NO 609.1 0.0 0.0 NO CBIN11035 A4 CI10028 Curb Inlet 610.0 617.4 7.4 610.0 0.0 0.0 NO 610.0 0.0 0.0 NO 610.0 0.0 0.0 NO 610.0 0.0 0.0 NO CBIN11036 A4 CI10694 Curb Inlet 614.4 622.9 8.5 614.9 5.6 5.6 NO 622.9 9.6 18.3 NO 631.4 14.3 16.1 YES 633.0 16.3 17.4 YES CBIN11037 A4 CI10029 Curb Inlet 616.3 622.9 6.7 616.3 0.0 0.0 NO 623.0 0.0 8.5 NO 631.4 0.0 8.2 YES 633.0 0.0 8.6 YES CBIN11038 A4 CI10030 Curb Inlet 633.6 641.8 8.2 633.6 0.0 0.0 NO 634.1 0.0 0.0 NO 645.0 0.0 7.7 YES 648.4 0.0 10.4 YES OTHR10869 A4 ZOTHER10030Other 636.1 646.2 10.1 637.2 0.0 54.1 NO 637.7 0.0 102.8 NO 647.0 0.0 155.2 NO 650.7 0.0 161.5 YES CBIN11039 A4 CI10031 Curb Inlet 637.3 645.8 8.6 637.5 1.9 1.9 NO 637.8 3.0 3.0 NO 647.0 4.5 9.6 YES 650.7 5.0 16.0 YES CBIN11040 A4 CI10032 Curb Inlet 653.4 661.4 8.0 653.4 0.0 0.0 NO 653.4 0.0 0.0 NO 654.5 0.0 0.2 NO 661.5 0.0 5.4 NO CBIN11041 A4 CI10033 Curb Inlet 675.9 681.9 6.0 676.3 3.7 3.7 NO 676.4 6.2 6.2 NO 676.5 9.2 9.2 NO 676.5 10.5 10.5 NO CBIN11042 A4 CI10034 Curb Inlet 698.2 707.1 8.9 698.4 0.0 0.0 NO 698.8 0.0 0.0 NO 699.3 0.0 0.0 NO 699.5 0.0 0.0 NO CLEN10712 A4 ZCO10179 Cleanout 853.9 868.3 14.5 855.0 0.0 36.0 NO 855.7 0.0 81.1 NO 868.3 0.0 130.8 NO 868.3 0.0 149.1 NO CLEN10713 A4 ZCO10180 Cleanout 849.7 863.5 13.8 850.6 0.0 36.1 NO 851.2 0.0 81.2 NO 851.8 0.0 130.9 NO 852.0 0.0 149.4 NO CLEN10714 A4 ZCO10181 Cleanout 839.3 850.3 11.0 840.4 2.1 37.3 NO 841.1 3.3 83.5 NO 841.9 4.8 135.1 NO 850.3 5.4 153.0 NO CLEN10715 A4 ZCO11614 Cleanout 833.3 842.2 8.9 834.4 2.5 38.9 NO 835.0 3.9 86.3 NO 835.5 5.6 139.7 NO 835.8 6.3 160.1 NO CLEN10716 A4 ZCO11615 Cleanout 734.4 742.9 8.5 736.5 3.4 39.0 NO 737.8 5.4 75.6 NO 739.5 7.8 115.9 NO 742.9 8.8 131.5 NO CBIN11043 A4 CI10036 Curb Inlet 701.5 708.8 7.3 701.5 0.0 0.0 NO 701.5 0.0 0.0 NO 701.5 0.0 0.0 NO 701.5 0.0 0.0 NO CBIN11044 A4 CI10037 Curb Inlet 640.7 648.1 7.4 640.7 0.0 0.0 NO 640.7 0.0 0.0 NO 648.3 0.0 12.3 NO 652.1 0.0 13.1 YES OTHR10870 A4 ZOTHER10031Other 638.2 648.4 10.2 639.3 5.6 52.4 NO 639.8 8.8 99.9 NO 648.4 12.8 151.1 NO 652.1 14.4 172.8 YES CBIN11045 A4 ZCI10038 Curb Inlet 633.8 640.2 6.4 634.3 4.4 4.4 NO 634.4 7.0 7.0 NO 644.0 10.3 10.3 YES 647.3 11.6 11.6 YES CBIN11046 A4 CI0494 Curb Inlet 569.8 576.8 7.0 570.9 6.7 12.0 NO 571.3 10.4 19.4 NO 576.8 15.1 28.6 NO 576.8 17.0 32.5 NO CBIN11047 A4 CI10040 Curb Inlet 580.4 591.4 11.0 581.0 0.0 4.6 NO 581.1 0.0 7.3 NO 581.3 0.0 10.7 NO 581.4 0.0 12.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 67 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10452 A4 ZINL12936 Inlet 459.8 469.4 9.6 460.7 0.0 101.7 NO 461.0 0.0 172.2 NO 461.3 0.0 258.4 NO 461.4 0.0 284.3 NO CBIN11048 A4 ZCI10049 Curb Inlet 756.9 764.1 7.3 757.9 3.2 14.8 NO 759.4 6.2 26.5 NO 764.2 9.5 36.3 NO 766.7 10.9 40.9 YES INLT10453 A4 ZINL12999 Inlet 814.1 822.2 8.1 814.4 0.0 11.6 NO 814.5 0.0 20.8 NO 814.6 0.0 27.4 NO 814.6 0.0 30.8 NO CBIN11049 A4 ZCI10050 Curb Inlet 816.8 820.8 4.0 817.8 11.7 11.7 NO 820.8 20.0 20.0 NO 823.5 30.1 30.1 YES 825.4 34.3 34.3 YES OTHR10871 A4 ZOTHER10033Other 914.6 926.4 11.8 915.2 0.0 17.8 NO 915.5 0.0 37.1 NO 915.7 0.0 58.4 NO 915.8 0.0 67.5 NO CLEN10717 A4 ZCO12353 Cleanout 903.1 915.1 12.0 903.8 0.0 17.8 NO 904.1 0.0 37.1 NO 904.3 0.0 58.4 NO 904.4 0.0 67.5 NO CLEN10718 A4 ZCO12354 Cleanout 679.5 686.5 7.0 680.1 0.0 7.9 NO 680.5 0.0 15.5 NO 686.5 0.0 24.4 NO 686.5 0.0 29.2 NO INLT10454 A4 ZINL028 Inlet 680.8 684.8 4.0 681.5 1.1 7.8 NO 681.8 2.0 15.5 NO 684.8 3.1 24.1 NO 684.9 3.5 29.1 NO CBIN11050 A4 CI1049 Curb Inlet 519.9 531.6 11.7 522.3 0.0 101.5 NO 523.8 0.0 170.2 NO 531.7 0.0 260.7 NO 531.7 0.0 296.7 NO INLT10455 A4 ZINL11205 Inlet 879.2 883.2 4.0 879.6 6.5 6.5 NO 879.8 15.2 15.2 NO 879.9 24.5 24.5 NO 880.0 28.6 28.6 NO OTLT10131 A4 ZOUT10001 Outlet 462.9 476.7 13.8 462.9 0.0 206.4 NO 467.0 0.0 486.4 NO 463.0 0.0 426.9 NO 467.2 0.0 655.4 NO INLT10456 A4 ZINL066 Inlet 727.2 731.2 4.0 727.8 3.5 3.5 NO 728.4 6.4 6.4 NO 729.4 9.8 9.8 NO 732.1 11.2 11.2 NO OTHR10872 A4 ZOTHER10034Other 743.0 752.8 9.8 743.5 0.0 10.2 NO 743.7 0.0 22.0 NO 743.8 0.0 35.1 NO 743.9 0.0 40.7 NO INLT10457 A4 ZINL10194 Inlet 463.0 478.2 15.3 466.1 0.0 204.0 NO 478.3 0.0 328.1 NO 466.4 0.0 426.8 NO 478.5 0.0 455.7 NO CLEN10719 A4 ZCO11011 Cleanout 530.6 543.1 12.5 531.7 0.0 204.0 NO 532.0 0.0 328.1 NO 532.2 0.0 426.8 NO 532.3 0.0 455.7 NO CLEN10720 A4 ZCO11012 Cleanout 564.8 574.8 10.0 567.1 3.6 150.6 NO 567.8 6.6 236.0 NO 568.2 10.1 277.5 NO 568.4 11.6 292.2 NO CBIN11051 A4 CI10857 Curb Inlet 564.0 577.7 13.7 566.1 0.0 150.6 NO 566.7 0.0 236.0 NO 567.1 0.0 277.5 NO 567.2 0.0 292.2 NO CLEN10721 A4 ZCO12937 Cleanout 555.3 567.6 12.3 556.6 1.2 203.6 NO 556.9 2.1 328.0 NO 557.1 3.1 426.8 NO 557.1 3.5 455.7 NO CBIN11052 A4 CI10055 Curb Inlet 579.1 590.4 11.3 579.7 0.0 4.6 NO 579.9 0.0 7.4 NO 580.1 0.0 10.8 NO 580.2 0.0 12.1 NO CBIN11053 A4 CI10057 Curb Inlet 677.8 681.9 4.1 678.2 4.0 4.0 NO 678.3 7.2 7.2 NO 678.4 11.0 11.0 NO 678.5 12.6 12.6 NO CLEN10722 A4 ZCO11623 Cleanout 725.2 743.3 18.1 726.6 0.0 42.7 NO 727.3 0.0 82.2 NO 729.0 0.0 125.6 NO 742.1 0.0 137.5 NO CLEN10723 A4 ZCO11624 Cleanout 725.8 743.3 17.6 727.5 0.0 42.6 NO 728.4 0.0 82.2 NO 729.3 0.0 125.6 NO 738.3 0.0 137.5 NO CLEN10724 A4 ZCO12366 Cleanout 712.8 720.2 7.4 713.5 1.4 16.9 NO 713.8 2.3 35.6 NO 714.1 3.5 56.3 NO 714.2 4.0 65.2 NO CLEN10725 A4 ZCO10960 Cleanout 518.4 534.7 16.3 519.3 0.0 101.7 NO 519.5 0.0 172.2 NO 519.8 0.0 260.7 NO 519.9 0.0 285.0 NO OTLT10132 A4 ZOUT10002 Outlet 457.4 467.3 9.9 457.6 0.0 101.7 NO 457.6 0.0 172.2 NO 457.6 0.0 256.6 NO 457.6 0.0 277.6 NO INLT10458 A4 ZINL12368 Inlet 882.3 886.3 4.0 882.9 0.0 15.0 NO 883.2 0.0 34.1 NO 883.4 0.0 54.4 NO 883.6 0.0 62.7 NO CLEN10726 A4 ZCO10198 Cleanout 868.6 884.2 15.6 869.6 2.5 27.7 NO 870.1 4.9 62.9 NO 870.6 7.6 101.2 NO 884.2 8.8 119.4 NO CLEN10727 A4 ZCO12369 Cleanout 716.5 747.6 31.1 717.7 6.8 146.6 NO 718.2 12.8 288.3 NO 718.9 19.8 440.7 NO 719.4 22.8 479.1 NO OTHR10873 A4 ZOTHER10037Other 677.5 689.6 12.1 679.5 6.2 152.2 NO 680.6 12.4 299.3 NO 689.7 19.4 446.0 NO 689.9 22.4 493.1 NO INLT10459 A4 ZINL12374 Inlet 681.4 685.4 4.0 682.3 6.8 6.8 NO 682.6 13.6 13.6 NO 685.4 21.5 21.5 NO 685.7 24.8 29.8 NO INLT10460 A4 ZINL11921 Inlet 573.1 577.1 4.0 577.8 5.7 151.9 NO 590.2 12.2 239.9 YES 598.2 19.4 277.9 YES 601.4 22.4 290.0 YES OTHR10874 A4 ZOTHER10039Other 656.4 667.3 10.9 657.5 3.2 47.3 NO 658.0 5.0 92.2 NO 658.6 7.3 141.3 NO 667.3 8.2 159.3 NO INLT10461 A4 ZINL10204 Inlet 658.4 668.4 10.1 658.4 0.0 0.0 NO 658.4 0.0 0.0 NO 658.6 0.0 0.1 NO 668.5 0.0 11.8 NO OTHR10875 A4 ZOTHER10040Other 670.3 682.1 11.8 672.1 0.0 40.3 NO 673.2 0.0 80.3 NO 673.4 0.0 124.2 NO 673.8 0.0 141.8 NO INLT10462 A4 ZINL13000 Inlet 747.1 751.1 4.0 747.6 10.3 10.3 NO 747.8 22.1 22.1 NO 747.9 35.2 35.2 NO 748.0 40.8 40.8 NO CBIN11054 A4 ZCI10066 Curb Inlet 872.8 876.8 4.0 873.2 4.7 5.1 NO 873.4 10.1 11.5 NO 873.6 16.0 18.6 NO 874.7 18.5 21.6 NO OTHR10876 A4 ZOTHER10060Other 682.4 686.4 4.0 682.4 0.0 0.0 NO 682.6 0.0 0.1 NO 683.7 0.0 1.9 NO 686.5 0.0 6.5 NO OTHR10877 A4 ZOTHER10090Other 743.2 747.2 4.0 745.3 0.0 173.8 NO 746.3 0.0 323.6 NO 748.2 0.0 576.1 NO 749.9 0.0 646.4 YES CBIN11055 A4 CI1408 Curb Inlet 750.2 770.2 20.0 751.0 0.8 0.8 NO 752.8 1.2 1.2 NO 770.2 1.7 2.0 NO 770.3 2.0 16.1 NO CBIN11056 A4 CI1407 Curb Inlet 758.0 769.9 11.9 758.0 0.0 0.0 NO 758.0 0.0 0.0 NO 758.2 0.0 6.2 NO 759.2 0.0 23.1 NO CBIN11057 A4 CI10094 Curb Inlet 751.1 756.1 5.1 751.3 0.9 0.9 NO 751.3 1.4 1.4 NO 751.4 2.1 2.1 NO 751.4 2.3 2.3 NO CBIN11058 A4 CI1405 Curb Inlet 757.2 763.2 6.0 757.2 0.0 0.0 NO 757.2 0.0 0.0 NO 763.2 0.0 6.9 NO 764.5 0.0 15.9 YES CBIN11059 A4 CI10095 Curb Inlet 738.8 746.8 8.0 738.8 0.0 0.0 NO 738.8 0.0 0.0 NO 738.8 0.0 0.0 NO 738.8 0.0 0.0 NO CBIN11060 A4 CI1406 Curb Inlet 756.8 762.8 6.0 757.0 0.6 0.6 NO 757.0 0.9 0.9 NO 762.9 1.4 6.5 NO 764.5 1.5 9.7 YES CBIN11061 A4 CI10096 Curb Inlet 739.6 747.0 7.4 739.6 0.0 0.0 NO 739.6 0.0 0.0 NO 739.6 0.0 0.0 NO 739.6 0.0 0.0 NO INLT10463 A4 ZINL12942 Inlet 742.2 749.3 7.1 742.6 3.0 3.8 NO 742.7 4.8 6.1 NO 742.9 7.1 8.9 NO 742.9 8.0 10.1 NO CLEN10728 A4 ZCO13004 Cleanout 736.0 741.1 5.2 736.2 1.6 1.6 NO 736.2 2.6 2.6 NO 736.3 3.8 3.8 NO 736.3 4.3 4.3 NO OTHR10878 A4 ZOTHER10092Other 747.7 769.8 22.0 751.0 0.0 170.2 NO 752.8 0.0 317.0 NO 769.8 0.0 520.2 NO 769.9 0.0 586.5 NO OTHR10879 A4 ZOTHER10093Other 747.7 769.9 22.2 750.9 2.2 171.7 NO 752.7 3.4 328.1 NO 769.9 5.0 529.4 NO 770.0 5.6 599.3 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 68 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10880 A4 ZOTHER10094Other 750.6 763.0 12.4 753.6 0.0 134.0 NO 755.2 0.0 246.8 NO 763.0 0.0 385.0 NO 764.1 0.0 530.9 YES OTHR10881 A4 ZOTHER10095Other 750.9 762.9 12.0 753.6 0.0 133.8 NO 755.2 0.0 246.8 NO 763.0 0.0 383.8 NO 764.2 0.0 483.7 YES OTHR10882 A4 ZOTHER10096Other 752.7 763.6 10.9 754.7 0.0 133.2 NO 755.9 0.0 246.7 NO 763.6 0.0 390.8 NO 765.0 0.0 483.8 YES OTHR10883 A4 ZOTHER10097Other 758.2 769.3 11.1 759.4 0.0 17.7 NO 759.7 0.0 28.1 NO 769.3 0.0 46.7 NO 769.4 0.0 62.0 NO OTHR10884 A4 ZOTHER10098Other 758.6 768.9 10.3 759.8 4.0 17.8 NO 760.2 6.3 28.2 NO 768.9 9.2 46.8 NO 769.1 10.4 50.7 NO INLT10464 A4 ZINL11864 Inlet 782.5 788.0 5.5 782.5 0.0 0.0 NO 782.5 0.0 0.0 NO 782.5 0.0 0.0 NO 782.5 0.0 0.0 NO CLEN10729 A4 CO006 Cleanout 720.6 739.7 19.2 721.2 0.0 27.8 NO 721.4 0.0 44.5 NO 721.6 0.0 65.0 NO 721.6 0.0 73.4 NO CLEN10730 A4 ZCO12773 Cleanout 739.0 746.3 7.3 739.5 0.0 3.8 NO 739.6 0.0 6.0 NO 739.8 0.0 8.9 NO 739.8 0.0 10.1 NO CLEN10731 A4 ZCO10968 Cleanout 736.1 742.2 6.2 736.5 1.0 4.7 NO 736.7 1.6 7.5 NO 736.8 2.3 11.0 NO 736.9 2.6 12.5 NO INLT10465 A4 ZINL12418 Inlet 737.8 743.3 5.6 737.8 0.0 0.0 NO 737.8 0.0 0.0 NO 737.8 0.0 0.0 NO 737.8 0.0 0.0 NO INLT10466 A4 ZINL11463 Inlet 742.6 747.9 5.3 743.2 7.1 7.1 NO 743.3 11.3 11.3 NO 743.5 16.6 16.6 NO 743.5 18.8 18.8 NO CLEN10732 A4 ZCO12419 Cleanout 732.5 740.3 7.8 733.1 0.0 4.7 NO 733.3 0.0 7.5 NO 733.5 0.0 11.1 NO 733.6 0.0 12.5 NO CBIN11062 A4 ZCI10100 Curb Inlet 773.6 785.8 12.3 774.4 0.0 12.5 NO 774.7 0.0 19.9 NO 775.0 0.0 28.9 NO 775.2 0.0 32.8 NO CLEN10733 A4 ZCO10277 Cleanout 780.7 786.9 6.2 781.1 1.4 6.2 NO 781.2 2.2 9.7 NO 781.3 3.2 14.0 NO 781.3 3.6 15.8 NO CLEN10734 A4 CO003 Cleanout 772.2 786.4 14.2 773.0 1.6 14.0 NO 773.2 2.5 22.2 NO 773.4 3.6 32.3 NO 773.5 4.1 36.4 NO CLEN10735 A4 CO002 Cleanout 770.9 786.8 15.9 771.5 0.0 14.0 NO 771.6 0.0 22.2 NO 771.7 0.0 32.3 NO 772.1 0.0 36.5 NO CLEN10736 A4 ZCO11522 Cleanout 759.4 765.7 6.3 760.6 0.0 14.0 NO 761.0 0.0 22.2 NO 765.9 0.0 32.3 NO 769.0 0.0 36.6 YES CLEN10737 A4 ZCO11022 Cleanout 739.0 746.4 7.4 739.7 0.0 7.1 NO 739.9 0.0 11.3 NO 740.2 0.0 16.6 NO 740.3 0.0 18.7 NO CBIN11063 A4 ZCI10102 Curb Inlet 784.7 791.6 6.9 785.2 2.1 4.9 NO 785.4 3.2 7.7 NO 785.5 4.7 11.0 NO 785.6 5.2 12.4 NO CLEN10738 A4 ZCO10278 Cleanout 736.7 743.8 7.1 737.4 0.0 7.1 NO 737.6 0.0 11.2 NO 737.8 0.0 16.6 NO 737.9 0.0 18.6 NO CLEN10739 A4 ZCO10279 Cleanout 731.6 738.7 7.1 732.3 1.0 12.6 NO 732.5 1.6 20.1 NO 732.7 2.4 29.6 NO 732.8 2.7 33.5 NO CBIN11064 A4 ZCI10104 Curb Inlet 725.9 732.2 6.3 727.2 10.3 21.8 NO 727.6 16.4 34.9 NO 728.0 24.1 51.4 NO 728.2 27.2 58.1 NO CBIN11065 A4 ZCI10106 Curb Inlet 775.8 783.7 7.9 776.5 2.4 6.5 NO 776.7 3.8 10.3 NO 776.9 5.6 15.1 NO 777.0 6.4 17.1 NO CLEN10740 A4 ZCO11956 Cleanout 778.2 782.8 4.6 778.2 0.0 0.0 NO 778.2 0.0 0.0 NO 778.2 0.0 0.0 NO 778.2 0.0 0.0 NO OTHR10885 A4 ZOTHER10100Other 778.5 783.7 5.2 778.5 0.0 0.0 NO 778.5 0.0 0.0 NO 778.5 0.0 0.0 NO 778.5 0.0 0.0 NO CBIN11066 A4 ZCI10108 Curb Inlet 784.9 792.5 7.6 785.5 0.0 4.3 NO 785.6 0.0 6.8 NO 785.8 0.0 9.9 NO 785.9 0.0 11.2 NO CLEN10741 A4 ZCO10280 Cleanout 777.0 784.8 7.9 777.5 0.0 4.3 NO 777.6 0.0 6.8 NO 777.7 0.0 9.9 NO 777.8 0.0 11.2 NO CLEN10742 A4 ZCO10281 Cleanout 784.0 791.6 7.6 784.5 0.0 4.3 NO 784.6 0.0 6.9 NO 784.7 0.0 10.0 NO 784.8 0.0 11.3 NO CBIN11067 A4 CI1401 Curb Inlet 703.7 711.6 7.9 703.7 0.0 0.0 NO 703.7 0.0 0.0 NO 703.7 0.0 0.0 NO 703.7 0.0 0.0 NO CLEN10743 A4 ZCO12789 Cleanout 743.3 749.0 5.7 743.3 0.0 0.0 NO 743.3 0.0 0.0 NO 743.3 0.0 0.0 NO 743.3 0.0 0.0 NO CBIN11068 A4 CI1402 Curb Inlet 703.4 711.5 8.0 703.4 0.0 0.0 NO 703.4 0.0 0.0 NO 703.4 0.0 0.0 NO 703.4 0.0 0.0 NO CLEN10744 A4 ZCO10282 Cleanout 702.1 713.2 11.1 702.4 0.0 3.5 NO 702.5 0.0 5.5 NO 702.6 0.0 8.0 NO 702.6 0.0 9.0 NO INLT10467 A4 ZINL10283 Inlet 742.0 749.3 7.3 742.5 4.7 4.7 NO 742.7 7.6 7.6 NO 742.8 11.1 11.1 NO 742.9 12.6 12.6 NO INLT10468 A4 ZINL11639 Inlet 731.7 738.1 6.3 731.7 0.0 0.0 NO 731.8 0.0 0.0 NO 732.0 0.0 0.0 NO 732.1 0.0 0.0 NO CLEN10745 A4 ZCO11640 Cleanout 740.7 748.7 8.0 741.2 0.0 4.7 NO 741.3 0.0 7.6 NO 741.4 0.0 11.1 NO 741.5 0.0 12.5 NO CLEN10746 A4 ZCO11641 Cleanout 731.1 739.1 8.0 731.7 0.0 4.5 NO 731.8 0.0 7.3 NO 732.0 0.0 10.8 NO 732.1 0.0 12.2 NO CBIN11069 A4 ZCI10109 Curb Inlet 742.8 749.6 6.8 742.8 0.0 0.0 NO 742.8 0.0 0.0 NO 742.8 0.0 0.0 NO 742.9 0.0 0.0 NO CBIN11070 A4 ZCI10110 Curb Inlet 731.7 739.0 7.3 731.7 0.0 0.0 NO 731.8 0.0 0.0 NO 732.0 0.0 0.0 NO 732.1 0.0 0.0 NO CBIN11071 A4 ZCI10111 Curb Inlet 729.1 737.2 8.1 729.7 0.0 4.4 NO 729.9 0.0 7.2 NO 730.1 0.0 10.6 NO 730.2 0.0 12.0 NO CLEN10747 A4 ZCO10284 Cleanout 728.5 737.0 8.5 729.1 0.0 8.8 NO 729.2 0.0 14.3 NO 729.4 0.0 21.2 NO 729.5 0.0 24.0 NO CBIN11072 A4 ZCI10112 Curb Inlet 729.8 737.9 8.1 730.4 4.4 4.4 NO 730.6 7.2 7.2 NO 730.8 10.8 10.8 NO 730.9 12.2 12.2 NO CBIN11073 A4 ZCI10113 Curb Inlet 742.7 748.8 6.1 742.7 0.0 0.0 NO 742.7 0.0 0.0 NO 742.7 0.0 0.0 NO 742.7 0.0 0.0 NO CBIN11074 A4 ZCI10114 Curb Inlet 723.4 735.2 11.8 723.7 0.0 8.7 NO 723.8 0.0 14.3 NO 723.9 0.0 21.2 NO 723.9 0.0 24.0 NO CLEN10748 A4 ZCO10285 Cleanout 721.2 735.3 14.0 721.8 11.7 19.9 NO 721.9 18.4 31.9 NO 722.0 27.2 47.0 NO 722.1 30.7 53.2 NO CBIN11075 A4 CI1449 Curb Inlet 697.7 702.8 5.1 698.9 0.0 19.9 NO 699.3 0.0 31.9 NO 700.0 0.0 47.0 NO 700.1 0.0 53.2 NO CBIN11076 A4 CI1448 Curb Inlet 697.4 702.7 5.3 698.1 0.0 19.9 NO 698.3 0.0 31.8 NO 698.5 0.0 49.4 NO 698.6 0.0 59.5 NO CLEN10749 A4 ZCO11642 Cleanout 674.8 685.6 10.8 675.7 17.0 27.5 NO 676.1 26.9 43.5 NO 685.6 39.5 67.1 NO 686.1 44.5 77.1 NO CLEN10750 A4 ZCO10286 Cleanout 748.3 771.1 22.9 751.5 0.0 170.1 NO 753.3 0.0 317.6 NO 771.1 0.0 516.1 NO 771.2 0.0 584.6 NO CLEN10751 A4 ZCO10287 Cleanout 754.6 765.0 10.4 756.5 1.2 128.1 NO 757.4 1.9 236.5 NO 765.0 2.8 398.8 NO 765.8 3.2 493.2 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 69 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10752 A4 ZCO11882 Cleanout 756.4 767.0 10.6 757.7 0.0 109.6 NO 758.3 0.0 207.1 NO 763.3 0.0 318.9 NO 766.9 0.0 366.0 NO INLT10469 A4 ZINL11883 Inlet 786.1 793.6 7.5 786.8 4.3 4.3 NO 787.0 6.9 6.9 NO 787.3 10.0 10.0 NO 787.5 11.3 11.3 NO INLT10470 A4 ZINL11884 Inlet 785.8 792.9 7.1 786.3 2.9 2.9 NO 786.5 4.5 4.5 NO 786.7 6.5 6.5 NO 786.7 7.3 7.3 NO INLT10471 A4 ZINL11212 Inlet 739.9 743.9 4.0 739.9 0.0 0.0 NO 739.9 0.0 0.0 NO 739.9 0.0 0.0 NO 739.9 0.0 0.0 NO OTHR10886 A4 ZOTHER10107Other 718.2 735.7 17.5 718.7 0.0 19.9 NO 718.8 0.0 31.9 NO 719.0 0.0 47.0 NO 719.0 0.0 53.2 NO INLT10472 A4 CO41203 Inlet 758.1 764.2 6.1 758.5 4.8 4.8 NO 758.6 9.8 9.8 NO 764.2 15.2 15.2 NO 765.3 17.5 17.5 YES INLT10473 A4 ZINL11959 Inlet 587.6 608.6 21.1 588.0 0.0 4.0 NO 588.1 0.0 9.0 NO 588.3 0.0 14.3 NO 588.3 0.0 16.6 NO INLT10474 A4 ZINL11960 Inlet 575.5 596.0 20.4 576.5 0.0 19.5 NO 576.9 0.0 45.0 NO 577.4 0.0 72.4 NO 577.5 0.0 84.1 NO CLEN10753 A4 ZCO11962 Cleanout 573.8 598.1 24.3 574.6 0.0 13.5 NO 575.0 0.0 29.5 NO 575.3 0.0 46.1 NO 575.5 0.0 55.5 NO INLT10475 A4 ZINL10288 Inlet 558.8 568.7 9.9 559.4 10.8 10.8 NO 559.7 25.2 25.2 NO 560.0 40.7 40.7 NO 560.1 47.4 47.4 NO CBIN11077 A4 CI10115 Curb Inlet 573.4 593.2 19.8 574.1 1.2 20.8 NO 574.4 2.0 47.1 NO 574.7 2.9 75.6 NO 574.8 3.3 87.7 NO CBIN11078 A4 CI0476 Curb Inlet 567.5 579.5 12.1 568.1 2.9 16.0 NO 568.4 4.6 33.6 NO 568.7 6.7 52.3 NO 568.8 7.5 60.7 NO CBIN11079 A4 CI0475 Curb Inlet 553.2 566.2 12.9 554.0 1.4 27.7 NO 554.4 2.2 59.9 NO 554.7 3.2 94.8 NO 554.8 3.6 110.4 NO CBIN11080 A4 CI1198 Curb Inlet 541.8 553.1 11.3 541.8 0.0 0.0 NO 541.8 0.0 0.0 NO 541.8 0.0 0.0 NO 541.8 0.0 0.0 NO CBIN11081 A4 CI10117 Curb Inlet 550.4 562.4 11.9 551.1 3.4 23.6 NO 551.4 5.3 51.7 NO 551.7 7.6 82.4 NO 551.8 8.6 95.5 NO INLT10476 A4 ZINL10289 Inlet 533.1 538.8 5.7 533.5 5.1 5.1 NO 533.8 11.8 11.8 NO 534.0 18.9 18.9 NO 534.1 22.0 22.0 NO CBIN11082 A4 CI1196 Curb Inlet 522.7 534.8 12.1 523.4 2.2 12.1 NO 523.6 3.5 19.9 NO 523.8 5.1 29.6 NO 523.9 5.8 33.6 NO CBIN11083 A4 CI0481 Curb Inlet 518.5 530.8 12.4 519.4 4.5 50.0 NO 519.9 7.4 100.4 NO 520.3 11.1 156.9 NO 520.4 12.6 181.0 NO CBIN11084 A4 CI10118 Curb Inlet 534.0 546.8 12.8 534.8 0.0 23.6 NO 535.2 0.0 51.8 NO 535.6 0.0 82.6 NO 535.7 0.0 95.7 NO CBIN11085 A4 CI10121 Curb Inlet 511.4 523.6 12.2 512.2 1.2 27.8 NO 512.6 1.8 58.5 NO 512.9 2.6 92.5 NO 513.1 3.0 107.0 NO CBIN11086 A4 CI10123 Curb Inlet 526.4 539.0 12.6 527.3 2.7 26.0 NO 527.7 4.2 55.7 NO 528.1 6.0 88.1 NO 528.2 6.8 102.0 NO CBIN11087 A4 CI0274 Curb Inlet 486.6 500.9 14.4 487.9 11.1 38.7 NO 488.5 19.0 77.1 NO 489.1 28.9 120.8 NO 489.4 33.1 139.5 NO CLEN10754 A4 ZCO13005 Cleanout 485.5 498.5 13.0 486.8 2.2 90.6 NO 487.4 3.4 180.0 NO 488.0 4.9 281.2 NO 488.3 5.5 324.6 NO INLT10477 A4 ZINL12420 Inlet 482.3 486.3 4.0 483.0 10.8 10.8 NO 483.5 29.5 29.5 NO 483.8 49.6 49.6 NO 484.0 58.3 58.3 NO CLEN10755 A4 ZCO13006 Cleanout 475.4 487.0 11.5 476.9 0.0 102.2 NO 477.7 0.0 211.2 NO 478.5 0.0 332.7 NO 487.0 0.0 385.6 NO INLT10478 A4 ZINL11963 Inlet 443.3 448.5 5.2 443.9 7.8 7.8 NO 444.3 17.4 17.4 NO 444.5 27.7 27.7 NO 448.5 32.1 32.1 NO CBIN11088 A4 CI0478 Curb Inlet 470.1 481.1 11.0 471.4 2.1 104.0 NO 472.1 3.6 214.9 NO 472.7 5.4 338.1 NO 473.0 6.1 391.5 NO INLT10479 A4 ZINL11964 Inlet 443.8 451.1 7.3 444.7 36.9 36.9 NO 445.0 66.8 66.8 NO 445.4 101.3 101.3 NO 451.2 118.0 118.0 NO CLEN10756 A4 ZCO12422 Cleanout 443.7 456.1 12.4 444.0 0.0 3.9 NO 444.1 0.0 6.1 NO 444.2 0.0 9.0 NO 445.2 0.0 17.6 NO CLEN10757 A4 ZCO12423 Cleanout 442.7 452.7 10.0 442.7 0.0 0.0 NO 442.8 0.0 0.0 NO 443.0 0.0 0.0 NO 443.1 0.0 0.1 NO CBIN11089 A4 CI1062 Curb Inlet 448.3 456.2 7.9 448.3 0.0 0.0 NO 448.3 0.0 0.0 NO 448.3 0.0 0.0 NO 448.3 0.0 0.0 NO CBIN11090 A4 CI0521 Curb Inlet 441.9 451.4 9.5 442.5 9.9 9.9 NO 442.8 17.6 17.6 NO 443.0 26.7 26.7 NO 443.1 30.5 30.5 NO CLEN10758 A4 ZCO10290 Cleanout 439.3 453.5 14.2 440.3 1.4 43.0 NO 440.7 2.7 78.7 NO 441.2 4.3 121.0 NO 453.5 4.9 169.7 NO CBIN11091 A4 CI0522 Curb Inlet 440.9 448.1 7.3 440.9 0.0 0.0 NO 440.9 0.0 0.0 NO 440.9 0.0 0.0 NO 448.2 0.0 11.5 NO CBIN11092 A4 CI0523 Curb Inlet 439.3 448.0 8.8 439.3 0.0 0.0 NO 439.3 0.0 0.0 NO 439.3 0.0 0.0 NO 448.1 0.0 15.7 NO CLEN10759 A4 ZCO11643 Cleanout 436.5 451.3 14.8 438.1 3.2 79.9 NO 438.7 5.2 157.0 NO 439.7 7.6 246.9 NO 451.4 8.6 315.0 NO INLT10480 A4 ZINL11965 Inlet 476.2 480.2 4.0 476.7 2.1 23.4 NO 476.8 3.9 45.2 NO 477.0 5.9 72.9 NO 477.0 6.8 83.2 NO CLEN10760 A4 ZCO11966 Cleanout 437.5 454.3 16.9 437.9 0.0 9.8 NO 438.0 0.0 17.6 NO 438.1 0.0 26.6 NO 438.2 0.0 30.4 NO CLEN10761 A4 ZCO12424 Cleanout 442.1 451.1 9.0 443.1 6.5 38.0 NO 443.6 13.1 76.4 NO 444.2 20.5 122.9 NO 451.1 23.7 154.6 NO CLEN10762 A4 ZCO12425 Cleanout 447.2 452.0 4.9 447.7 0.0 8.3 NO 448.0 0.0 19.5 NO 448.2 0.0 31.6 NO 448.6 0.0 36.8 NO CLEN10763 A4 ZCO12426 Cleanout 444.9 450.7 5.8 445.5 0.0 8.3 NO 445.8 0.0 19.6 NO 446.1 0.0 31.6 NO 450.7 0.0 36.8 NO INLT10481 A4 ZINL11523 Inlet 447.7 451.7 4.0 448.2 8.3 8.3 NO 448.5 19.5 19.5 NO 448.8 31.5 31.5 NO 448.9 36.7 36.7 NO INLT10482 A4 ZINL11524 Inlet 421.8 427.3 5.5 422.3 0.0 9.8 NO 422.5 0.0 17.6 NO 422.7 0.0 26.7 NO 422.8 0.0 30.4 NO CBIN11093 A4 CI1177 Curb Inlet 413.2 424.9 11.7 414.0 4.4 14.1 NO 414.3 7.5 24.9 NO 414.6 11.2 37.6 NO 414.8 12.8 42.9 NO CLEN10764 A4 ZCO10969 Cleanout 432.3 445.6 13.3 433.6 0.0 104.1 NO 434.2 0.0 215.3 NO 434.8 0.0 338.7 NO 435.3 0.0 388.9 NO CLEN10765 A4 ZCO11967 Cleanout 424.3 437.2 12.9 425.8 1.3 80.7 NO 426.5 2.1 159.3 NO 437.2 3.0 253.8 NO 438.7 3.4 269.1 YES CBIN11094 A4 CI1180 Curb Inlet 403.6 413.9 10.4 404.4 4.2 17.8 NO 404.6 6.6 30.7 NO 405.0 9.7 46.3 NO 405.4 10.9 52.7 NO CBIN11095 A4 CI1431 Curb Inlet 419.3 429.8 10.5 419.3 0.0 0.0 NO 419.3 0.0 0.0 NO 429.9 0.0 11.4 NO 430.1 0.0 16.4 NO CBIN11096 A4 CI0520 Curb Inlet 409.3 417.4 8.1 409.7 7.5 7.5 NO 409.8 12.0 12.0 NO 410.0 17.7 17.7 NO 410.1 20.0 20.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 70 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11097 A4 CI1071 Curb Inlet 412.3 424.5 12.2 414.2 9.5 89.9 NO 415.2 22.2 180.3 NO 428.3 35.9 285.2 YES 432.7 41.7 303.9 YES CBIN11098 A4 CI0487 Curb Inlet 389.2 408.2 19.0 390.7 1.6 105.4 NO 391.4 2.6 217.9 NO 408.2 3.8 347.4 NO 408.2 4.2 392.5 NO CBIN11099 A4 CI0483 Curb Inlet 393.7 408.2 14.6 393.7 0.0 0.0 NO 393.7 0.0 0.0 NO 408.3 0.0 9.4 NO 408.3 0.0 17.8 NO CBIN11100 A4 CI1070 Curb Inlet 414.7 424.1 9.4 414.7 0.0 0.0 NO 415.2 0.0 0.4 NO 428.3 0.0 15.1 YES 432.8 0.0 18.8 YES CLEN10766 A4 ZCO13089 Cleanout 392.4 408.6 16.2 393.6 18.8 31.5 NO 394.1 36.5 56.7 NO 408.7 56.7 94.0 NO 408.8 65.2 103.6 NO INLT10483 A4 ZINL10291 Inlet 423.9 431.6 7.7 423.9 0.0 0.0 NO 423.9 0.0 0.0 NO 431.6 0.0 4.0 NO 432.8 0.0 3.2 YES CBIN11101 A4 CI1434 Curb Inlet 415.1 427.3 12.2 415.1 0.0 0.0 NO 415.1 0.0 0.0 NO 427.4 0.0 22.6 NO 427.8 0.0 26.7 NO CBIN11102 A4 CI1179 Curb Inlet 384.2 394.6 10.4 385.1 0.0 17.6 NO 385.6 0.0 30.6 NO 398.5 0.0 48.2 YES 402.7 0.0 51.0 YES INLT10484 A4 ZINL10292 Inlet 381.4 399.7 18.4 383.4 1.4 138.1 NO 385.2 2.2 277.3 NO 399.9 3.2 432.8 NO 404.5 3.6 485.0 YES CLEN10767 A4 ZCO10293 Cleanout 412.7 424.8 12.1 413.8 15.3 15.3 NO 414.2 26.4 26.4 NO 425.1 40.0 41.3 NO 427.6 45.7 56.8 YES CBIN11103 A4 CI0882 Curb Inlet 412.6 420.7 8.1 412.6 0.0 0.0 NO 412.6 0.0 0.0 NO 422.0 0.0 14.8 YES 426.4 0.0 22.3 YES CLEN10768 A4 ZCO10970 Cleanout 410.2 421.3 11.1 410.5 0.0 1.2 NO 410.7 0.0 2.4 NO 423.3 0.0 12.6 YES 427.6 0.0 15.4 YES INLT10485 A4 ZINL10971 Inlet 384.7 393.7 9.0 385.2 3.5 3.5 NO 385.4 6.2 6.2 NO 398.2 9.3 14.4 YES 402.3 10.7 14.1 YES INLT10486 A4 ZINL11968 Inlet 440.3 445.9 5.6 440.4 1.2 1.2 NO 440.5 2.4 2.4 NO 440.5 3.8 3.8 NO 440.5 4.4 4.4 NO CBIN11104 A4 CI1178 Curb Inlet 379.7 392.0 12.2 380.9 2.6 19.9 NO 392.0 4.2 36.0 NO 398.1 6.3 67.9 YES 402.3 7.1 60.6 YES CBIN11105 A4 CI0484 Curb Inlet 383.2 391.6 8.4 383.6 0.0 3.4 NO 384.5 0.0 9.8 NO 398.0 0.0 19.2 YES 402.2 0.0 21.8 YES CBIN11106 A4 CI0486 Curb Inlet 375.0 391.5 16.6 377.6 0.0 141.6 NO 391.6 0.0 299.2 NO 397.9 0.0 433.4 YES 402.0 0.0 459.6 YES CBIN11107 A4 CI1066 Curb Inlet 403.5 418.9 15.4 405.4 0.0 114.3 NO 406.3 0.0 226.0 NO 419.3 0.0 339.6 NO 423.4 0.0 345.0 YES CBIN11108 A4 CI1204 Curb Inlet 417.0 425.0 8.0 417.0 0.0 0.0 NO 417.0 0.0 0.0 NO 417.0 0.0 0.0 NO 417.0 0.0 0.0 NO CBIN11109 A4 CI1102 Curb Inlet 408.7 419.0 10.3 409.3 1.5 6.4 NO 409.7 2.6 13.5 NO 420.7 3.9 21.3 YES 424.8 4.4 24.7 YES INLT10487 A4 ZINL10294 Inlet 433.3 439.3 6.0 433.6 4.9 4.9 NO 433.7 10.9 10.9 NO 433.8 17.5 17.5 NO 433.8 20.3 20.3 NO CBIN11110 A4 CI0019 Curb Inlet 375.5 391.7 16.2 377.2 13.1 39.4 NO 391.8 21.5 74.2 NO 397.8 32.0 121.5 YES 401.9 36.3 120.8 YES CLEN10769 A4 ZCO11023 Cleanout 413.3 421.1 7.8 413.8 8.1 8.1 NO 414.0 13.3 13.3 NO 414.2 19.8 19.8 NO 414.5 22.4 22.4 NO CLEN10770 A4 ZCO12427 Cleanout 405.6 452.6 47.0 406.1 3.9 3.9 NO 406.3 6.2 6.2 NO 406.4 9.2 9.2 NO 406.5 10.4 10.4 NO CLEN10771 A4 ZCO12428 Cleanout 404.1 450.5 46.4 404.7 1.1 4.8 NO 404.9 1.8 7.7 NO 405.1 2.6 11.2 NO 405.1 2.9 12.8 NO CLEN10772 A4 ZCO12429 Cleanout 402.3 430.5 28.1 403.4 0.0 13.4 NO 403.9 0.0 25.2 NO 404.4 0.0 38.2 NO 404.6 0.0 44.6 NO INLT10488 A4 ZINL11644 Inlet 383.3 390.6 7.3 383.8 2.7 2.7 NO 383.9 4.2 4.2 NO 384.1 6.2 6.2 NO 384.1 7.0 7.0 NO CLEN10773 A4 ZCO11645 Cleanout 401.9 422.7 20.9 402.7 6.2 18.5 NO 403.0 11.4 34.6 NO 403.3 17.2 52.4 NO 403.4 19.7 61.5 NO CBIN11111 A4 CI1435 Curb Inlet 394.3 406.3 12.0 395.0 0.0 8.0 NO 395.2 0.0 13.2 NO 406.3 0.0 21.1 NO 407.9 0.0 22.0 YES CLEN10774 A4 ZCO11969 Cleanout 391.8 409.0 17.2 393.7 1.5 122.1 NO 394.7 2.5 243.2 NO 409.9 3.6 342.7 NO 413.9 4.1 353.9 YES CBIN11112 A4 CI0482 Curb Inlet 382.2 387.2 5.0 382.2 0.0 0.0 NO 383.3 0.0 8.1 NO 396.8 0.0 15.7 YES 400.7 0.0 14.9 YES CLEN10775 A4 ZCO10295 Cleanout 395.1 408.9 13.8 395.9 1.9 7.0 NO 396.4 4.2 16.0 NO 410.4 6.8 30.5 YES 414.5 7.9 32.2 YES CBIN11113 A4 CI0485 Curb Inlet 372.0 387.3 15.3 374.5 0.0 183.1 NO 387.5 0.0 391.7 NO 396.8 0.0 453.9 YES 400.7 0.0 465.5 YES CBIN11114 A4 CI0369 Curb Inlet 380.8 386.4 5.6 380.8 0.0 0.0 NO 380.8 0.0 0.0 NO 380.8 0.0 0.0 NO 380.8 0.0 0.0 NO INLT10489 A4 ZINL12430 Inlet 410.8 427.1 16.3 411.1 5.1 5.1 NO 411.3 11.7 11.7 NO 411.7 18.9 18.9 NO 419.5 21.9 21.9 NO CBIN11115 A4 CI0368 Curb Inlet 382.5 387.7 5.1 382.5 0.0 0.0 NO 382.5 0.0 0.0 NO 382.5 0.0 0.0 NO 382.5 0.0 0.0 NO CBIN11116 A4 CI0370 Curb Inlet 381.3 387.3 6.0 381.9 10.0 10.0 NO 382.1 16.3 16.3 NO 382.3 24.1 24.1 NO 382.4 27.3 27.3 NO CLEN10776 A4 ZCO11646 Cleanout 378.3 387.5 9.2 378.6 0.0 4.3 NO 378.8 0.0 9.3 NO 379.4 0.0 46.2 NO 379.7 0.0 53.9 NO CLEN10777 A4 ZCO11647 Cleanout 379.3 387.6 8.3 379.8 0.0 10.0 NO 380.1 0.0 16.3 NO 381.0 0.0 40.8 NO 381.1 0.0 47.1 NO CBIN11117 A4 CI1079 Curb Inlet 379.4 393.7 14.3 381.0 1.3 123.0 NO 393.7 2.0 245.5 NO 399.6 2.9 326.1 YES 403.3 3.3 338.8 YES CLEN10778 A4 ZCO11970 Cleanout 392.7 400.2 7.5 393.2 0.0 18.5 NO 393.4 0.0 34.6 NO 393.6 0.0 52.4 NO 393.6 0.0 61.6 NO CLEN10779 A4 ZCO12431 Cleanout 393.7 401.7 8.0 393.7 0.0 0.0 NO 393.7 0.0 0.0 NO 393.7 0.0 0.0 NO 393.7 0.0 0.0 NO CLEN10780 A4 ZCO12432 Cleanout 369.4 389.3 19.9 372.7 5.2 308.7 NO 389.4 8.5 680.0 NO 396.3 12.7 766.4 YES 400.1 14.4 767.5 YES CBIN11118 A4 CI0877 Curb Inlet 378.3 396.1 17.8 379.3 10.5 27.1 NO 379.6 16.8 48.9 NO 380.0 24.6 73.0 NO 380.2 27.8 84.9 NO CBIN11119 A4 CI1038 Curb Inlet 369.5 386.0 16.4 370.4 11.5 15.6 NO 370.7 18.6 27.3 NO 371.7 27.8 72.0 NO 386.0 31.6 88.0 NO CBIN11120 A4 CI1080 Curb Inlet 383.3 393.0 9.7 383.3 0.0 0.0 NO 393.0 0.0 5.9 NO 399.6 0.0 15.2 YES 403.4 0.0 18.1 YES CBIN11121 A4 CI1097 Curb Inlet 380.6 399.1 18.5 380.6 0.0 0.0 NO 380.6 0.0 0.0 NO 380.6 0.0 0.0 NO 380.6 0.0 0.0 NO CBIN11122 A4 CI1091 Curb Inlet 361.8 375.1 13.3 371.0 2.6 325.7 NO 379.6 4.3 552.0 YES 390.4 6.3 681.5 YES 393.4 7.1 721.6 YES CLEN10781 A4 ZCO11024 Cleanout 373.4 393.5 20.1 374.1 13.7 40.1 NO 374.4 22.4 70.5 NO 374.6 33.9 105.7 NO 374.7 38.6 121.5 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 71 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11123 A4 CI1092 Curb Inlet 365.9 374.8 8.9 374.8 0.0 5.6 NO 375.7 0.0 6.2 NO 384.0 0.0 11.1 YES 386.4 0.0 9.7 YES CLEN10782 A4 ZCO12433 Cleanout 357.9 375.0 17.1 367.6 6.3 316.6 NO 375.7 10.0 521.8 NO 384.0 14.5 656.3 YES 386.4 16.3 691.6 YES CLEN10783 A4 ZCO10296 Cleanout 363.3 375.3 12.0 364.1 0.0 40.1 NO 364.3 0.0 70.5 NO 364.5 0.0 105.8 NO 364.6 0.0 121.5 NO OTLT10133 A4 ZOUT10350 Outlet 352.3 356.3 4.0 352.3 3.0 18.5 NO 352.3 4.9 31.8 NO 352.3 7.1 78.6 NO 352.3 8.1 91.7 NO INLT10490 A4 ZINL11213 Inlet 359.3 372.9 13.6 359.8 0.0 4.9 NO 360.0 0.0 7.8 NO 360.1 0.0 11.2 NO 360.2 0.0 12.6 NO CBIN11124 A4 CI0790 Curb Inlet 369.8 379.5 9.7 370.2 2.2 2.2 NO 370.3 3.9 3.9 NO 370.4 6.0 6.0 NO 370.5 6.8 6.8 NO CBIN11125 A4 CI0792 Curb Inlet 367.5 376.7 9.1 367.5 0.0 0.0 NO 367.5 0.0 0.0 NO 367.5 0.0 0.0 NO 367.5 0.0 0.0 NO CBIN11126 A4 CI0793 Curb Inlet 365.8 376.4 10.6 366.1 1.1 3.1 NO 366.2 1.9 5.6 NO 366.3 2.8 8.5 NO 366.3 3.2 9.7 NO OTLT10134 A4 ZINL10300 Outlet 361.0 365.0 4.0 361.0 0.0 4.9 NO 361.0 0.0 8.4 NO 361.0 0.0 12.7 NO 361.0 0.0 14.4 NO INLT10491 A4 ZINL10301 Inlet 361.4 369.1 7.7 361.8 0.0 4.9 NO 362.0 0.0 8.4 NO 362.1 0.0 12.7 NO 362.2 0.0 14.4 NO INLT10492 A4 ZINL11214 Inlet 373.5 390.3 16.8 373.8 0.0 4.9 NO 373.8 0.0 8.4 NO 373.9 0.0 12.7 NO 373.9 0.0 14.4 NO INLT10493 A4 ZINL11215 Inlet 375.1 390.6 15.5 375.8 0.0 4.9 NO 376.0 0.0 8.5 NO 376.2 0.0 12.8 NO 376.3 0.0 14.4 NO CBIN11127 A4 CI0781 Curb Inlet 363.3 376.5 13.2 363.8 4.7 10.7 NO 364.0 7.9 20.1 NO 364.2 11.6 31.2 NO 364.2 13.0 35.7 NO INLT10494 A4 ZINL10302 Inlet 376.0 389.9 13.9 376.7 0.0 5.0 NO 376.9 0.0 8.6 NO 377.1 0.0 12.8 NO 377.2 0.0 14.5 NO INLT10495 A4 ZINL10303 Inlet 377.4 386.2 8.8 378.2 5.1 5.1 NO 378.5 8.9 8.9 NO 378.8 13.3 13.3 NO 378.9 15.0 15.0 NO INLT10496 A4 ZINL10304 Inlet 377.8 382.9 5.2 377.8 0.0 0.0 NO 377.8 0.0 0.0 NO 377.8 0.0 0.0 NO 377.8 0.0 0.0 NO CBIN11128 A4 CI10126 Curb Inlet 360.0 372.3 12.3 360.0 0.0 0.0 NO 360.0 0.0 0.0 NO 372.3 0.0 4.6 NO 372.3 0.0 5.5 NO CLEN10784 A4 ZCO12943 Cleanout 371.3 381.3 10.0 371.8 0.9 6.5 NO 372.0 1.5 12.8 NO 372.2 2.1 20.5 NO 372.3 2.4 23.6 NO INLT10497 A4 ZINL12944 Inlet 378.0 385.6 7.6 378.2 0.0 0.1 NO 378.5 0.0 0.2 NO 378.8 0.0 0.3 NO 378.9 0.0 0.3 NO CLEN10785 A4 ZCO11971 Cleanout 376.3 387.0 10.8 376.3 0.0 0.0 NO 376.3 0.0 0.0 NO 376.3 0.0 0.0 NO 376.3 0.0 0.0 NO INLT10498 A4 ZINL11972 Inlet 395.6 403.9 8.2 395.6 0.0 0.0 NO 395.6 0.0 0.0 NO 395.6 0.0 0.0 NO 395.6 0.0 0.0 NO CBIN11129 A4 CI0785 Curb Inlet 377.3 386.2 8.9 377.3 0.0 0.0 NO 377.3 0.0 0.0 NO 377.3 0.0 0.0 NO 377.3 0.0 0.0 NO CBIN11130 A4 CI0786 Curb Inlet 375.3 385.6 10.4 375.8 5.6 5.6 NO 376.0 11.5 11.5 NO 376.2 18.5 18.5 NO 376.3 21.3 21.3 NO CBIN11131 A4 CI0454 Curb Inlet 403.1 409.9 6.7 403.1 0.0 0.0 NO 403.1 0.0 0.0 NO 403.1 0.0 0.0 NO 403.4 0.0 0.5 NO OTHR10887 A4 ZOTHER10109Other 398.8 407.2 8.3 400.3 0.0 86.3 NO 400.9 0.0 158.1 NO 401.6 0.0 238.8 NO 402.4 0.0 253.8 NO INLT10499 A4 ZINL13207 Inlet 407.9 421.6 13.7 407.9 0.0 0.0 NO 407.9 0.0 0.0 NO 407.9 0.0 0.0 NO 407.9 0.0 0.0 NO INLT10500 A4 ZINL10307 Inlet 417.3 421.3 4.0 417.7 1.2 1.2 NO 417.8 1.9 1.9 NO 417.9 2.8 2.8 NO 417.9 3.1 3.1 NO CLEN10786 A4 ZCO10308 Cleanout 402.2 416.9 14.7 404.0 0.0 77.1 NO 404.8 0.0 144.8 NO 406.4 0.0 224.7 NO 406.7 0.0 236.3 NO CBIN11132 A4 CI0795 Curb Inlet 398.0 406.6 8.6 398.0 0.0 0.0 NO 398.0 0.0 0.0 NO 398.0 0.0 0.0 NO 406.6 0.0 6.6 NO CBIN11133 A4 CI0789 Curb Inlet 405.6 413.6 8.0 406.6 6.1 37.1 NO 407.0 9.5 65.2 NO 407.4 13.7 91.9 NO 413.6 15.4 106.9 NO CLEN10787 A4 ZCO10309 Cleanout 389.8 407.4 17.7 390.6 0.0 37.1 NO 390.9 0.0 65.2 NO 407.4 0.0 91.9 NO 407.4 0.0 106.0 NO CBIN11134 A4 CI0794 Curb Inlet 396.8 406.3 9.5 396.8 0.0 0.0 NO 396.8 0.0 0.0 NO 396.8 0.0 0.6 NO 406.3 0.0 6.8 NO CBIN11135 A4 CI0784 Curb Inlet 397.9 405.8 7.9 397.9 0.0 0.0 NO 397.9 0.0 0.0 NO 397.9 0.0 0.0 NO 397.9 0.0 0.0 NO CLEN10788 A4 ZCO12438 Cleanout 426.0 442.1 16.1 426.9 1.0 31.4 NO 427.3 1.6 56.4 NO 427.6 2.3 80.4 NO 427.8 2.5 90.9 NO CBIN11136 A4 CI0264 Curb Inlet 390.2 397.8 7.5 390.9 0.0 0.2 NO 397.8 0.0 3.2 NO 399.6 0.0 9.5 YES 401.7 0.0 9.1 YES CBIN11137 A4 CI0265 Curb Inlet 389.0 397.4 8.4 390.8 9.1 50.3 NO 397.4 14.4 85.2 NO 399.6 21.1 130.3 YES 401.7 23.8 136.0 YES CLEN10789 A4 ZCO11525 Cleanout 362.8 366.8 4.0 363.2 0.0 16.3 NO 363.4 0.0 27.9 NO 363.6 0.0 43.4 NO 363.8 0.0 49.0 NO INLT10501 A4 ZINL10311 Inlet 477.5 487.3 9.8 477.5 0.0 0.0 NO 477.5 0.0 0.0 NO 477.5 0.0 0.0 NO 477.5 0.0 0.0 NO CLEN10790 A4 ZCO10312 Cleanout 430.4 462.7 32.3 431.7 0.0 30.6 NO 432.4 0.0 55.2 NO 437.0 0.0 81.2 NO 439.3 0.0 92.3 NO CLEN10791 A4 ZCO11648 Cleanout 403.4 421.7 18.3 407.9 0.0 16.3 NO 408.1 0.0 27.8 NO 408.2 0.0 42.4 NO 408.3 0.0 48.6 NO INLT10502 A4 ZINL11649 Inlet 432.2 436.2 4.0 433.5 30.5 30.5 NO 434.2 55.2 55.2 NO 440.0 85.3 85.3 YES 443.1 97.7 97.7 YES CBIN11138 A4 CI0261 Curb Inlet 407.3 417.3 10.0 408.3 2.9 41.7 NO 408.7 4.5 71.7 NO 417.3 6.5 117.1 NO 418.2 7.3 122.4 NO CLEN10792 A4 ZCO12439 Cleanout 424.3 436.2 11.8 425.3 2.2 38.9 NO 425.6 3.4 67.3 NO 426.3 5.0 102.8 NO 436.2 5.6 121.5 NO CLEN10793 A4 ZCO12440 Cleanout 429.3 436.7 7.5 430.2 0.0 25.7 NO 430.5 0.0 45.1 NO 430.9 0.0 69.0 NO 436.8 0.0 86.2 NO CBIN11139 A4 ZCI10127 Curb Inlet 434.8 443.8 9.0 434.8 0.0 0.0 NO 434.8 0.0 0.0 NO 435.2 0.0 0.1 NO 443.9 0.0 12.1 NO CLEN10794 A4 ZCO12945 Cleanout 460.8 469.1 8.3 461.1 2.8 2.8 NO 461.2 4.4 4.4 NO 461.2 6.5 6.5 NO 461.3 7.3 7.3 NO CBIN11140 A4 ZCI10128 Curb Inlet 433.3 443.4 10.1 434.3 14.8 25.6 NO 434.7 26.3 45.0 NO 435.2 40.4 69.0 NO 443.4 46.3 86.4 NO INLT10503 A4 ZINL11973 Inlet 431.0 441.3 10.3 431.0 0.0 0.0 NO 431.0 0.0 0.0 NO 431.0 0.0 0.0 NO 441.3 0.0 8.4 NO CLEN10795 A4 ZCO10313 Cleanout 445.1 453.9 8.9 445.6 7.1 10.9 NO 445.8 12.8 18.8 NO 446.0 19.9 28.7 NO 446.1 22.9 32.8 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 72 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11141 A4 CI0258 Curb Inlet 441.8 450.9 9.1 442.3 3.3 11.1 NO 442.5 5.5 18.8 NO 442.6 8.3 28.7 NO 442.7 9.5 32.8 NO CBIN11142 A4 CI0259 Curb Inlet 443.3 450.9 7.6 443.3 0.0 0.0 NO 443.3 0.0 0.0 NO 443.3 0.0 0.0 NO 443.3 0.0 0.0 NO INLT10504 A4 ZINL12441 Inlet 452.8 461.8 9.0 453.5 8.2 8.2 NO 453.7 13.9 13.9 NO 453.9 21.2 21.2 NO 454.0 24.2 24.2 NO CBIN11143 A4 CI0260 Curb Inlet 409.2 417.3 8.0 409.2 0.0 0.0 NO 409.2 0.0 0.0 NO 417.3 0.0 11.4 NO 418.2 0.0 11.7 NO CLEN10796 A4 ZCO12442 Cleanout 384.4 407.8 23.4 385.6 8.1 44.8 NO 386.1 13.2 77.5 NO 407.8 19.6 108.2 NO 407.3 22.2 121.0 NO SEPR10014 A4 SEP10000 Separator 358.7 376.2 17.5 359.4 1.0 11.7 NO 359.6 2.1 22.1 NO 359.8 3.2 34.2 NO 359.9 3.6 39.1 NO SEPR10015 A4 ZSEP10001 Separator 441.7 451.6 9.9 442.0 0.0 8.9 NO 442.1 0.0 17.9 NO 442.2 0.0 27.4 NO 442.3 0.0 32.1 NO CBIN11144 A4 CI0371 Curb Inlet 381.7 386.4 4.7 381.7 0.0 0.0 NO 381.7 0.0 0.0 NO 381.7 0.0 0.0 NO 381.7 0.0 0.0 NO OTHR10888 A4 ZOTHER10113Other 405.7 419.9 14.2 407.8 0.0 108.1 NO 409.0 0.0 213.2 NO 421.6 0.0 316.7 YES 425.7 0.0 322.7 YES CBIN11145 A4 CI0883 Curb Inlet 410.3 420.8 10.5 411.0 0.0 15.2 NO 411.3 0.0 26.1 NO 422.0 0.0 41.7 YES 426.2 0.0 45.2 YES INLT10505 A4 ZINL11026 Inlet 589.3 593.3 4.0 589.7 4.0 4.0 NO 589.9 9.0 9.0 NO 590.1 14.3 14.3 NO 590.2 16.6 16.6 NO INLT10506 A4 ZINL12443 Inlet 577.3 581.3 4.0 578.2 15.6 15.6 NO 578.7 36.1 36.1 NO 579.1 58.3 58.3 NO 579.3 67.7 67.7 NO CLEN10797 A4 ZCO10314 Cleanout 531.5 542.3 10.8 531.5 0.0 0.0 NO 531.5 0.0 0.0 NO 531.5 0.0 0.0 NO 531.5 0.0 0.0 NO INLT10507 A4 ZINL10315 Inlet 576.3 580.3 4.0 577.2 13.5 13.5 NO 577.8 29.6 29.6 NO 578.4 47.0 47.0 NO 580.3 54.4 54.4 NO OTHR10889 A4 ZOTHER10114Other 386.0 403.6 17.5 387.7 0.0 136.8 NO 388.5 0.0 274.9 NO 403.6 0.0 428.4 NO 405.8 0.0 488.6 YES CLEN10798 A4 ZCO11846 Cleanout 373.9 388.6 14.8 376.8 0.0 181.4 NO 388.7 0.0 379.0 NO 397.5 0.0 513.9 YES 401.6 0.0 501.5 YES OTHR10890 A4 ZOTHER10116Other 353.4 357.4 4.0 865.1 0.0 320.8 YES 1751.1 0.0 523.3 YES 2864.8 0.0 660.4 YES 3373.4 0.0 695.7 YES SEPR10016 A4 SEP10002 Separator 363.1 375.9 12.9 363.4 0.0 3.1 NO 363.5 0.0 5.6 NO 363.6 0.0 8.5 NO 363.7 0.0 9.7 NO OTHR10891 A4 ZOTHER10117Other 407.4 421.0 13.6 409.4 3.6 94.1 NO 410.5 6.0 188.7 NO 423.3 9.0 269.6 YES 427.6 10.2 276.2 YES OTHR10892 A4 ZOTHER10118Other 434.4 449.2 14.8 435.9 0.0 80.2 NO 436.6 0.0 157.0 NO 438.3 0.0 248.0 NO 449.2 0.0 302.9 NO OTHR10893 A4 ZOTHER10119Other 493.6 506.0 12.4 494.6 1.2 51.2 NO 495.0 2.0 102.2 NO 495.4 2.8 159.8 NO 495.6 3.2 184.3 NO OTHR10894 A4 ZOTHER10120Other 523.3 535.6 12.3 524.1 1.4 33.9 NO 524.6 2.2 73.4 NO 524.9 3.2 116.5 NO 525.1 3.6 135.3 NO OTHR10895 A4 ZOTHER10121Other 525.3 537.6 12.4 526.0 10.2 10.2 NO 526.2 16.7 16.7 NO 526.4 24.9 24.9 NO 526.5 28.3 28.3 NO OTHR10896 A4 ZOTHER10122Other 542.3 557.1 14.7 543.1 0.0 27.7 NO 543.4 0.0 60.0 NO 543.8 0.0 95.0 NO 543.9 0.0 110.5 NO OTHR10897 A4 ZOTHER10123Other 385.1 389.4 4.3 385.1 0.0 0.0 NO 385.1 0.0 0.0 NO 385.1 0.0 0.0 NO 385.1 0.0 0.0 NO INLT10508 A4 ZINL11975 Inlet 434.7 438.7 4.0 434.7 0.0 0.0 NO 434.7 0.0 0.0 NO 434.7 0.0 1.7 NO 434.7 0.0 1.0 NO CLEN10799 A4 ZCO12444 Cleanout 431.3 445.6 14.3 432.6 0.0 0.9 NO 434.1 0.0 3.7 NO 445.6 0.0 18.1 NO 445.6 0.0 12.5 NO CBIN11146 A4 CI10712 Curb Inlet 430.6 446.6 15.9 431.4 0.0 0.1 NO 431.8 0.0 0.1 NO 437.8 0.0 0.9 NO 432.4 0.0 0.5 NO OTHR10898 A4 ZOTHER10125Other 400.3 411.0 10.8 402.1 8.9 86.3 NO 402.9 14.7 158.2 NO 404.3 22.2 238.6 NO 404.4 25.2 252.8 NO OTHR10899 A4 ZOTHER10126Other 399.9 409.7 9.8 401.6 0.0 86.3 NO 402.3 0.0 158.1 NO 403.1 0.0 247.5 NO 403.4 0.0 264.0 NO OTHR10900 A4 ZOTHER10127Other 368.8 379.0 10.2 369.4 0.0 6.5 NO 369.6 0.0 12.9 NO 369.8 0.0 20.6 NO 369.8 0.0 23.7 NO OTHR10901 A4 ZOTHER10128Other 480.8 491.7 10.9 481.5 1.0 11.7 NO 481.9 1.9 31.4 NO 482.3 2.9 52.7 NO 482.7 3.3 61.8 NO OTHR10902 A4 ZOTHER10129Other 502.4 517.2 14.8 503.2 0.0 27.8 NO 503.6 0.0 58.6 NO 503.9 0.0 92.8 NO 504.0 0.0 107.3 NO OTHR10903 A4 ZOTHER10130Other 518.5 531.2 12.8 519.4 1.0 26.8 NO 519.8 1.5 56.9 NO 520.2 2.2 90.1 NO 520.3 2.5 104.3 NO OTHR10904 A4 ZOTHER10131Other 530.9 542.0 11.1 531.7 0.0 23.7 NO 532.1 0.0 51.9 NO 532.4 0.0 82.7 NO 532.5 0.0 95.8 NO OTHR10905 A4 ZOTHER10132Other 489.5 503.7 14.3 490.3 1.4 28.8 NO 490.7 2.2 60.3 NO 491.1 3.2 95.1 NO 491.2 3.7 110.0 NO OTHR10906 A4 ZOTHER10133Other 386.5 404.2 17.7 388.1 1.6 106.8 NO 388.9 2.5 220.3 NO 404.3 3.7 350.7 NO 405.9 4.2 396.0 YES CBIN11147 A4 CI0647 Curb Inlet 333.9 343.8 9.9 341.5 25.5 25.5 NO 345.0 42.6 42.6 YES 357.1 64.7 64.7 YES 363.3 74.0 74.0 YES CBIN11148 A4 CI0780 Curb Inlet 365.8 376.5 10.8 365.8 0.0 0.0 NO 365.8 0.0 0.0 NO 365.8 0.0 0.0 NO 365.8 0.0 0.0 NO CLEN10800 A4 ZCO10317 Cleanout 430.7 453.1 22.4 432.6 5.2 77.3 NO 434.1 8.1 144.4 NO 448.7 11.6 223.0 NO 448.9 13.0 234.0 NO CBIN11149 A4 CI10130 Curb Inlet 432.5 453.6 21.1 432.6 0.0 0.0 NO 434.1 0.0 0.1 NO 451.6 0.0 2.4 NO 450.9 0.0 3.8 NO CLEN10801 A4 ZCO12445 Cleanout 443.9 447.9 4.0 445.1 4.4 72.6 NO 445.6 6.8 135.4 NO 446.2 9.7 207.0 NO 446.3 10.9 219.0 NO OTHR10907 A4 ZOTHER10136Other 450.8 454.8 4.0 452.3 0.0 68.5 NO 453.0 0.0 128.7 NO 454.0 0.0 204.9 NO 456.3 0.0 211.9 YES OTHR10908 A4 ZOTHER10137Other 451.5 455.5 4.0 453.0 0.0 68.6 NO 453.8 0.0 128.7 NO 455.5 0.0 198.7 NO 457.4 0.0 212.7 YES CLEN10802 A4 ZCO12946 Cleanout 456.3 460.3 4.0 457.8 4.7 68.6 NO 458.4 7.6 128.8 NO 459.3 11.5 196.6 NO 462.5 13.0 221.4 YES CBIN11150 A4 CI10133 Curb Inlet 456.8 460.8 4.0 457.8 0.0 0.0 NO 458.4 0.0 0.0 NO 459.3 0.0 0.0 NO 462.6 0.0 4.7 YES CBIN11151 A4 CI10134 Curb Inlet 456.9 460.9 4.0 458.3 14.1 14.1 NO 460.7 27.3 27.3 NO 463.9 41.1 41.1 YES 467.5 47.5 47.5 YES CLEN10803 A4 ZCO12947 Cleanout 466.4 470.4 4.0 467.6 9.8 50.6 NO 468.1 16.0 95.3 NO 468.7 23.8 146.7 NO 469.1 27.0 168.5 NO CBIN11152 A4 CI10135 Curb Inlet 469.1 478.6 9.5 469.1 0.0 0.0 NO 469.1 0.0 0.0 NO 469.1 0.0 0.0 NO 469.1 0.0 0.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 73 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11153 A4 CI10136 Curb Inlet 468.3 472.3 4.0 468.3 0.0 0.0 NO 468.3 0.0 0.0 NO 468.7 0.0 0.2 NO 469.2 0.0 0.5 NO INLT10509 A4 ZINL10318 Inlet 472.8 486.5 13.7 472.8 0.0 0.0 NO 472.8 0.0 0.0 NO 472.8 0.0 0.0 NO 472.8 0.0 0.0 NO CLEN10804 A4 ZCO10319 Cleanout 487.8 509.9 22.1 487.8 0.0 0.0 NO 487.8 0.0 0.0 NO 487.8 0.0 0.0 NO 487.8 0.0 0.0 NO INLT10510 A4 ZINL10320 Inlet 516.3 521.1 4.8 516.3 0.0 0.0 NO 516.3 0.0 0.0 NO 516.3 0.0 0.0 NO 516.3 0.0 0.0 NO CLEN10805 A4 ZCO11650 Cleanout 469.9 473.9 4.0 471.0 8.9 41.2 NO 471.5 15.1 79.8 NO 472.0 22.6 123.5 NO 472.2 25.8 142.5 NO INLT10511 A4 ZINL11651 Inlet 485.8 499.4 13.6 486.8 35.6 35.6 NO 487.3 69.8 69.8 NO 487.7 107.6 107.6 NO 487.9 126.0 126.0 NO CLEN10806 A4 ZCO11976 Cleanout 534.0 544.1 10.2 534.0 0.0 0.0 NO 534.0 0.0 0.0 NO 534.0 0.0 0.0 NO 534.0 0.0 0.0 NO CLEN10807 A4 ZCO11977 Cleanout 402.4 416.3 13.9 402.4 0.0 0.0 NO 402.4 0.0 0.0 NO 402.4 0.0 0.0 NO 402.4 0.0 0.0 NO OTLT10135 A4 ZOTHER10138Outlet 358.5 362.5 4.0 358.6 1.5 4.5 NO 358.6 2.3 7.8 NO 358.6 3.3 11.6 NO 358.6 3.7 13.3 NO OTLT10136 A4 ZOTHER10139Outlet 355.9 360.3 4.4 355.9 0.0 11.7 NO 355.9 0.0 22.1 NO 355.9 0.0 34.2 NO 355.9 0.0 39.1 NO CBIN11154 A4 CI0453 Curb Inlet 346.3 353.0 6.7 346.3 0.0 0.0 NO 346.3 0.0 0.0 NO 346.3 0.0 0.0 NO 346.3 0.0 0.0 NO CBIN11155 A4 CI0457 Curb Inlet 345.6 353.1 7.6 345.6 0.0 0.0 NO 345.6 0.0 0.0 NO 345.6 0.0 0.0 NO 345.6 0.0 0.0 NO CLEN10808 A4 ZCO12446 Cleanout 344.5 355.5 11.0 344.5 0.0 0.0 NO 344.5 0.0 0.0 NO 344.5 0.0 0.0 NO 344.5 0.0 0.0 NO CLEN10809 A4 ZCO12447 Cleanout 342.8 353.2 10.4 343.6 12.7 12.7 NO 343.8 20.2 20.2 NO 344.1 29.7 29.7 NO 344.2 33.6 33.6 NO INLT10512 A4 ZINL10321 Inlet 377.9 387.5 9.5 377.9 0.0 0.0 NO 387.9 0.0 25.2 NO 396.8 0.0 24.7 YES 400.7 0.0 23.1 YES CLEN10810 A4 ZCO10322 Cleanout 449.3 460.4 11.1 449.6 0.0 3.9 NO 449.7 0.0 6.1 NO 449.7 0.0 9.0 NO 449.8 0.0 10.1 NO OTLT10137 A4 OUT10239 Outlet 355.9 359.9 4.0 356.3 0.0 196.2 NO 357.0 0.0 342.1 NO 357.3 0.0 444.5 NO 357.4 0.0 469.7 NO OTLT10138 A4 OUT10242 Outlet 356.1 360.1 4.0 359.1 0.0 124.5 NO 360.1 0.0 175.9 NO 360.1 0.0 212.9 NO 360.1 0.0 221.6 NO OTLT10139 A4 ZOUT10349 Outlet 352.3 361.6 9.4 352.3 0.0 0.0 NO 352.3 0.0 0.0 NO 352.3 0.0 0.0 NO 352.3 0.0 0.0 NO INLT10513 A4 ZINL10324 Inlet 330.0 338.4 8.4 338.4 9.3 34.8 NO 344.2 15.0 56.6 YES 355.6 22.5 78.4 YES 361.5 25.6 88.6 YES CBIN11156 A4 CI0650 Curb Inlet 355.0 361.9 6.9 355.3 1.2 1.2 NO 355.4 1.9 1.9 NO 362.1 2.8 12.6 NO 363.1 3.1 11.7 YES OTLT10140 A4 OUT10240 Outlet 357.5 361.5 4.0 357.5 0.0 4.9 NO 357.5 0.0 7.8 NO 357.5 0.0 11.2 NO 357.5 0.0 12.6 NO OTHR10909 A4 ZOTHER10140Other 380.0 397.8 17.8 381.9 0.0 138.1 NO 384.8 0.0 277.3 NO 399.1 0.0 430.9 YES 403.6 0.0 475.2 YES INLT10514 A4 ZINL11978 Inlet 338.5 349.9 11.3 339.8 1.0 13.5 NO 340.4 1.5 21.4 NO 341.0 2.1 31.5 NO 340.7 2.4 35.6 NO INLT10515 A4 ZINL12449 Inlet 338.4 343.2 4.8 339.5 0.9 14.4 NO 340.0 1.4 26.7 NO 340.6 2.0 40.9 NO 340.0 2.2 39.9 NO CLEN10811 A4 ZCO10325 Cleanout 386.4 395.6 9.2 388.6 1.7 55.7 NO 389.8 2.6 92.4 NO 395.7 3.8 170.8 NO 395.8 4.3 177.0 NO CLEN10812 A4 ZCO10326 Cleanout 383.8 390.6 6.8 385.1 2.6 57.3 NO 385.5 4.0 92.3 NO 386.0 5.8 140.7 NO 386.2 6.5 148.7 NO SEPR10017 A4 ZSEP10003 Separator 406.1 422.2 16.2 407.9 0.0 16.3 NO 408.1 0.0 27.8 NO 408.3 0.0 42.3 NO 408.4 0.0 48.6 NO OTHR10910 A4 ZOTHER10141Other 346.3 357.9 11.6 348.9 0.0 78.2 NO 349.5 0.0 127.1 NO 357.9 0.0 195.9 NO 357.9 0.0 217.2 NO CBIN11157 A4 CI1573 Curb Inlet 355.4 364.3 8.9 355.4 0.0 0.0 NO 355.4 0.0 0.0 NO 355.5 0.0 4.0 NO 355.6 0.0 4.2 NO OTHR10911 A4 ZOTHER10142Other 346.0 356.4 10.5 348.8 4.4 82.2 NO 349.3 7.6 133.9 NO 356.5 11.5 210.1 NO 356.5 13.1 229.9 NO INLT10516 A4 ZINL10327 Inlet 349.3 354.2 4.9 349.3 0.0 0.0 NO 349.3 0.0 0.0 NO 354.4 0.0 11.1 NO 354.8 0.0 10.1 NO OTHR10912 A4 ZOTHER10143Other 343.3 352.2 9.0 345.4 3.8 112.7 NO 346.3 6.0 189.4 NO 352.3 8.7 265.7 NO 352.3 9.8 286.0 NO CBIN11158 A4 ZCI10137 Curb Inlet 360.4 369.2 8.8 361.5 0.9 28.7 NO 362.2 1.4 50.3 NO 369.9 2.0 57.8 NO 371.3 2.3 57.4 YES CLEN10813 A4 ZCO10972 Cleanout 372.1 381.0 8.9 373.2 0.8 27.9 NO 373.8 1.2 49.9 NO 385.9 1.8 58.0 YES 388.6 2.0 61.5 YES CLEN10814 A4 ZCO12450 Cleanout 389.6 399.6 10.0 390.7 27.7 27.7 NO 391.1 49.4 49.4 NO 404.0 75.4 79.5 YES 408.3 86.3 92.3 YES CBIN11159 A4 CI0262 Curb Inlet 397.4 406.3 8.9 397.4 0.0 0.0 NO 397.4 0.0 0.0 NO 406.4 0.0 14.8 NO 408.4 0.0 15.6 YES CBIN11160 A4 CI0263 Curb Inlet 399.9 407.2 7.4 399.9 0.0 0.0 NO 399.9 0.0 0.0 NO 407.4 0.0 16.6 NO 408.4 0.0 17.2 YES CBIN11161 A4 CI1572 Curb Inlet 408.6 420.6 12.0 408.6 0.0 0.0 NO 408.6 0.0 0.0 NO 408.6 0.0 0.0 NO 408.6 0.0 0.0 NO CBIN11162 A4 CI1574 Curb Inlet 414.7 422.0 7.2 414.7 0.0 0.0 NO 414.7 0.0 0.0 NO 414.7 0.0 0.0 NO 414.7 0.0 0.0 NO OTLT10141 A4 OUT052 Outlet 338.4 342.4 4.0 338.4 0.0 15.3 NO 338.4 0.0 30.9 NO 338.4 0.0 53.1 NO 338.4 0.0 40.1 NO CLEN10815 A4 ZCO12451 Cleanout 339.0 353.4 14.4 341.2 2.3 172.8 NO 341.8 3.6 294.4 NO 342.3 5.2 386.4 NO 342.4 5.9 402.2 NO CLEN10816 A4 ZCO10329 Cleanout 348.4 364.0 15.7 350.9 0.0 193.7 NO 352.0 0.0 292.9 NO 364.0 0.0 383.7 NO 362.6 0.0 399.8 NO CBIN11163 A4 CI0649 Curb Inlet 358.3 362.3 4.0 358.3 0.0 0.0 NO 358.3 0.0 0.0 NO 362.4 0.0 3.2 NO 362.4 0.0 2.8 NO OTHR10913 A4 ZOTHER10144Other 349.2 360.0 10.8 353.3 1.7 152.2 NO 353.8 2.7 264.7 NO 361.4 3.9 355.2 YES 362.9 4.3 366.7 YES CBIN11164 A4 CI0648 Curb Inlet 350.3 360.0 9.8 360.1 0.0 1.7 NO 360.1 0.0 1.9 NO 361.4 0.0 12.4 YES 362.9 0.0 10.5 YES CLEN10817 A4 ZCO11027 Cleanout 353.2 366.8 13.6 355.7 1.2 148.9 NO 356.9 1.9 261.4 NO 367.4 2.7 354.7 NO 369.6 3.0 363.8 YES CLEN10818 A4 ZCO11980 Cleanout 359.3 370.5 11.2 361.5 5.1 148.2 NO 362.5 8.0 260.3 NO 375.2 11.5 349.6 YES 378.2 12.9 366.1 YES CBIN11165 A4 CI0884 Curb Inlet 370.7 379.4 8.6 372.6 3.9 144.1 NO 373.3 6.1 254.4 NO 383.0 9.0 352.8 YES 386.8 10.2 368.5 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 74 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10819 A4 ZCO10330 Cleanout 383.3 389.0 5.7 384.7 5.1 91.0 NO 385.3 8.2 166.4 NO 389.0 12.2 247.2 NO 393.4 13.8 265.1 YES OTHR10914 A4 ZOTHER10145Other 387.2 392.4 5.2 388.7 0.0 86.4 NO 389.3 0.0 159.2 NO 390.9 0.0 239.8 NO 395.9 0.0 250.4 YES CLEN10820 A4 ZCO11028 Cleanout 398.1 406.1 8.0 399.6 0.0 86.3 NO 400.2 0.0 158.2 NO 400.9 0.0 238.9 NO 401.9 0.0 253.5 NO CBIN11166 A4 CI0885 Curb Inlet 372.5 379.0 6.5 374.1 6.4 50.5 NO 374.8 10.0 86.4 NO 385.1 14.4 122.2 YES 389.0 16.2 134.4 YES OTHR10915 A4 ZOTHER10146Other 382.7 399.7 17.0 384.2 0.0 44.8 NO 384.9 0.0 77.5 NO 399.7 0.0 108.2 NO 399.7 0.0 121.0 NO CBIN11167 A4 CI0452 Curb Inlet 384.0 389.5 5.4 384.7 0.0 0.2 NO 385.3 0.0 0.3 NO 389.5 0.0 4.2 NO 393.4 0.0 8.3 YES INLT10517 A4 ZINL10331 Inlet 390.9 394.9 4.0 390.9 0.0 0.0 NO 390.9 0.0 0.0 NO 390.9 0.0 0.0 NO 393.4 0.0 0.6 NO OTLT10142 A4 ZINL11222 Outlet 337.3 341.3 4.0 337.3 0.0 172.4 NO 337.3 0.0 294.3 NO 337.3 0.0 386.3 NO 337.3 0.0 402.2 NO OTHR10916 A4 ZOTHER10147Other 430.3 451.4 21.1 431.4 0.0 77.1 NO 431.8 0.0 151.9 NO 432.2 0.0 235.2 NO 432.3 0.0 247.0 NO SEPR10018 A4 ZSEP10004 Separator 368.4 381.4 13.0 369.1 3.7 4.9 NO 369.3 5.8 7.8 NO 369.7 8.6 11.2 NO 369.8 9.7 12.7 NO CLEN10821 A4 ZCO11981 Cleanout 369.2 379.4 10.2 369.5 0.0 1.3 NO 369.6 0.0 2.1 NO 369.8 0.0 3.0 NO 369.9 0.0 3.4 NO CLEN10822 A4 ZCO12452 Cleanout 371.1 379.3 8.2 371.1 0.0 0.0 NO 371.1 0.0 0.0 NO 371.1 0.0 0.0 NO 371.1 0.0 0.0 NO CLEN10823 A4 ZCO11465 Cleanout 371.0 378.0 7.0 371.4 1.3 1.3 NO 371.5 2.1 2.1 NO 371.6 3.1 3.1 NO 371.6 3.5 3.5 NO INLT10518 A4 ZINL10333 Inlet 360.8 367.5 6.7 360.8 0.0 0.0 NO 360.8 0.0 0.0 NO 367.8 0.0 19.5 NO 369.6 0.0 19.2 YES OTHR10917 A4 ZOTHER10148Other 349.1 360.4 11.3 352.0 18.2 205.5 NO 352.9 30.4 291.5 NO 360.4 46.4 384.0 NO 361.2 53.3 399.9 NO INLT10519 A4 ZINL12455 Inlet 355.1 361.1 6.0 355.1 0.0 0.0 NO 355.1 0.0 0.0 NO 361.4 0.0 16.1 NO 362.9 0.0 16.5 YES CLEN10824 A4 ZCO10334 Cleanout 445.7 454.2 8.4 446.1 1.1 1.1 NO 446.2 1.7 1.7 NO 446.3 2.4 2.4 NO 446.3 2.7 2.7 NO CLEN10825 A4 ZCO12459 Cleanout 406.9 421.3 14.4 408.0 0.0 16.2 NO 408.3 0.0 27.7 NO 408.5 0.0 42.2 NO 408.6 0.0 48.3 NO CLEN10826 A4 ZCO10338 Cleanout 408.9 422.3 13.4 409.8 16.3 16.3 NO 410.1 27.7 27.7 NO 410.5 42.2 42.2 NO 410.6 48.3 48.3 NO CLEN10827 A4 ZCO10339 Cleanout 410.4 422.9 12.5 410.4 0.0 0.0 NO 410.4 0.0 0.0 NO 410.5 0.0 0.1 NO 410.6 0.0 0.1 NO CLEN10828 A4 ZCO11029 Cleanout 414.3 424.6 10.4 414.3 0.0 0.0 NO 414.3 0.0 0.0 NO 414.3 0.0 0.0 NO 414.3 0.0 0.0 NO CLEN10829 A4 ZCO12460 Cleanout 414.7 424.9 10.2 414.7 0.0 0.0 NO 414.7 0.0 0.0 NO 414.7 0.0 0.0 NO 414.7 0.0 0.0 NO CLEN10830 A4 ZCO10341 Cleanout 417.0 429.0 12.0 417.0 0.0 0.0 NO 417.0 0.0 0.0 NO 417.0 0.0 0.0 NO 417.0 0.0 0.0 NO CLEN10831 A4 ZCO10342 Cleanout 417.6 429.5 11.8 417.6 0.0 0.0 NO 417.6 0.0 0.0 NO 417.6 0.0 0.0 NO 417.6 0.0 0.0 NO CLEN10832 A4 ZCO11529 Cleanout 419.3 429.7 10.4 419.3 0.0 0.0 NO 419.3 0.0 0.0 NO 419.3 0.0 0.0 NO 419.3 0.0 0.0 NO CLEN10833 A4 ZCO10350 Cleanout 367.7 382.1 14.4 368.0 0.0 4.9 NO 368.1 0.0 7.8 NO 368.2 0.0 11.2 NO 368.2 0.0 12.6 NO INLT10520 A4 ZINL11989 Inlet 537.4 544.2 6.8 544.2 0.0 1.1 NO 544.8 0.0 10.7 NO 548.8 0.0 6.2 YES 550.9 0.0 6.7 YES CBIN11168 A4 CI0413 Curb Inlet 537.0 543.6 6.6 543.9 0.0 1.4 NO 544.7 0.0 12.5 YES 548.8 0.0 12.8 YES 550.9 0.0 12.1 YES OTHR10918 A4 ZOTHER10149Other 536.0 542.2 6.2 543.9 0.0 213.1 YES 544.6 0.0 348.2 YES 548.7 0.0 444.2 YES 550.8 0.0 487.8 YES CLEN10834 A4 ZCO10368 Cleanout 536.4 543.8 7.4 545.1 0.0 215.3 YES 547.9 0.0 363.9 YES 554.0 0.0 443.7 YES 557.2 0.0 491.8 YES INLT10521 A4 INL13116 Inlet 537.7 541.7 4.0 545.2 0.0 9.6 YES 548.0 0.0 20.4 YES 554.0 0.0 30.2 YES 557.2 0.0 27.8 YES CLEN10835 A4 ZCO11663 Cleanout 544.0 553.8 9.9 546.9 1.7 219.2 NO 553.8 2.6 354.5 NO 557.7 3.7 472.0 YES 561.6 4.1 524.0 YES CBIN11169 A4 CI1618 Curb Inlet 704.3 713.0 8.8 704.3 0.0 0.0 NO 704.3 0.0 0.0 NO 704.3 0.0 0.0 NO 704.3 0.0 0.0 NO CBIN11170 A4 CI1619 Curb Inlet 703.4 712.5 9.0 703.4 0.0 0.0 NO 703.4 0.0 0.0 NO 703.4 0.0 0.0 NO 703.4 0.0 0.0 NO OTLT10143 A4 OUT032 Outlet 673.6 677.6 4.0 673.9 0.0 9.2 NO 674.0 0.0 14.6 NO 674.0 0.0 21.3 NO 674.1 0.0 24.1 NO CLEN10836 A4 CO10383 Cleanout 677.6 692.9 15.3 678.1 0.0 9.2 NO 678.3 0.0 14.5 NO 678.4 0.0 21.3 NO 678.4 0.0 24.0 NO SEPR10019 A4 SEP011 Separator 678.7 697.1 18.3 678.7 0.0 9.2 NO 678.7 0.0 14.5 NO 678.7 0.0 21.3 NO 678.8 0.0 24.0 NO CBIN11171 A4 CI1425 Curb Inlet 692.0 703.5 11.5 692.0 0.0 0.0 NO 692.0 0.0 0.0 NO 692.0 0.0 0.0 NO 692.0 0.0 0.0 NO CLEN10837 A4 CO12477 Cleanout 679.1 694.1 15.0 680.0 0.0 9.2 NO 680.2 0.0 14.6 NO 680.5 0.0 21.4 NO 680.6 0.0 24.1 NO CBIN11172 A4 CI1420 Curb Inlet 685.9 690.8 4.9 686.7 7.8 7.8 NO 686.9 12.3 12.3 NO 690.8 18.0 18.0 NO 691.7 20.3 20.3 NO CBIN11173 A4 CI1421 Curb Inlet 688.5 700.3 11.8 688.5 0.0 0.0 NO 688.5 0.0 0.0 NO 688.5 0.0 0.0 NO 688.5 0.0 0.0 NO CBIN11174 A4 CI1423 Curb Inlet 685.2 697.5 12.3 685.2 0.0 0.0 NO 685.2 0.0 0.0 NO 685.2 0.0 0.0 NO 685.2 0.0 0.0 NO CLEN10838 A4 CO001 Cleanout 682.2 694.9 12.7 682.2 0.0 0.0 NO 682.2 0.0 0.0 NO 682.2 0.0 0.0 NO 682.2 0.0 0.0 NO CBIN11175 A4 CI1424 Curb Inlet 682.5 693.2 10.8 683.1 5.9 9.3 NO 683.2 9.4 14.6 NO 683.4 13.8 21.4 NO 683.5 15.6 24.1 NO CLEN10839 A4 ZCO11994 Cleanout 679.3 690.2 10.9 679.9 0.0 11.1 NO 680.1 0.0 17.5 NO 680.6 0.0 26.3 NO 690.2 0.0 28.6 NO CLEN10840 A4 CO14018 Cleanout 684.8 695.1 10.3 685.3 3.4 3.4 NO 685.4 5.4 5.4 NO 685.5 7.8 7.8 NO 685.6 8.8 8.8 NO INLT10522 A4 INL136 Inlet 680.7 686.8 6.1 680.7 0.0 0.0 NO 680.7 0.0 0.0 NO 680.7 0.0 0.0 NO 686.9 0.0 5.8 NO CBIN11176 A4 CI1274 Curb Inlet 676.5 685.4 8.8 676.5 0.0 0.0 NO 676.5 0.0 0.0 NO 685.4 0.0 6.7 NO 686.0 0.0 9.7 NO CLEN10841 A4 ZCO10384 Cleanout 678.4 686.5 8.1 678.4 0.0 0.0 NO 678.4 0.0 0.0 NO 679.5 0.0 5.8 NO 686.6 0.0 9.6 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 75 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10842 A4 ZCO10385 Cleanout 686.9 693.0 6.1 686.9 0.0 0.0 NO 686.9 0.0 0.0 NO 686.9 0.0 0.0 NO 686.9 0.0 0.0 NO CLEN10843 A4 ZCO12478 Cleanout 657.3 667.7 10.4 658.3 0.0 27.4 NO 658.6 0.0 43.4 NO 667.7 0.0 66.6 NO 668.0 0.0 71.7 NO CBIN11177 A4 CI1297 Curb Inlet 651.0 659.8 8.8 651.0 0.0 0.0 NO 651.3 0.0 0.2 NO 659.9 0.0 23.5 NO 660.7 0.0 26.2 NO CLEN10844 A4 ZCO10386 Cleanout 649.3 660.1 10.9 650.7 18.2 64.1 NO 651.3 29.2 102.2 NO 660.2 43.1 162.1 NO 660.5 48.7 168.6 NO CBIN11178 A4 CI10175 Curb Inlet 681.6 688.3 6.7 681.6 0.0 0.0 NO 681.6 0.0 0.0 NO 681.6 0.0 0.0 NO 682.2 0.0 0.8 NO CBIN11179 A4 CI10176 Curb Inlet 680.9 688.3 7.4 680.9 0.0 0.0 NO 680.9 0.0 0.0 NO 680.9 0.0 0.0 NO 682.2 0.0 4.4 NO CLEN10845 A4 ZCO12480 Cleanout 677.8 684.9 7.1 677.8 0.0 0.0 NO 677.8 0.0 0.0 NO 679.1 0.0 4.5 NO 685.0 0.0 5.8 NO CLEN10846 A4 ZCO10388 Cleanout 670.4 680.3 9.9 672.1 13.3 13.3 NO 674.2 21.4 21.4 NO 680.3 31.7 31.7 NO 681.9 35.9 36.9 YES CBIN11180 A4 ZCI10177 Curb Inlet 670.6 678.7 8.1 671.0 0.0 0.1 NO 671.3 0.0 0.1 NO 676.6 0.0 1.5 NO 678.7 0.0 1.5 NO CLEN10847 A4 ZCO10389 Cleanout 668.1 678.5 10.4 671.0 0.0 13.4 NO 671.3 0.0 21.3 NO 676.0 0.0 29.6 NO 678.5 0.0 30.3 NO CBIN11181 A4 ZCI10178 Curb Inlet 666.9 674.6 7.7 667.7 1.8 15.1 NO 667.9 2.7 24.0 NO 668.2 3.9 33.5 NO 674.6 4.4 34.7 NO CLEN10848 A4 ZCO12951 Cleanout 657.4 669.8 12.5 658.2 0.0 23.5 NO 658.4 0.0 37.6 NO 658.7 0.0 52.2 NO 658.9 0.0 56.8 NO CLEN10849 A4 ZCO12952 Cleanout 666.0 675.1 9.1 666.5 0.0 8.5 NO 666.6 0.0 13.7 NO 666.8 0.0 20.0 NO 666.8 0.0 23.0 NO CLEN10850 A4 ZCO11668 Cleanout 668.1 678.2 10.1 668.8 0.0 8.5 NO 669.0 0.0 13.7 NO 669.2 0.0 19.9 NO 669.3 0.0 23.0 NO CLEN10851 A4 ZCO11669 Cleanout 670.0 679.1 9.2 670.7 8.5 8.5 NO 671.0 13.7 13.7 NO 672.9 20.3 20.4 NO 673.5 23.0 23.0 NO CBIN11182 A4 CI10179 Curb Inlet 670.6 678.6 8.1 670.7 0.0 0.0 NO 671.0 0.0 0.0 NO 673.0 0.0 0.6 NO 673.4 0.0 0.7 NO CBIN11183 A4 CI10180 Curb Inlet 671.2 680.3 9.1 671.2 0.0 0.0 NO 671.2 0.0 0.0 NO 672.3 0.0 1.6 NO 673.9 0.0 1.7 NO CLEN10852 A4 ZCO13010 Cleanout 641.5 654.6 13.0 642.6 0.0 34.6 NO 642.9 0.0 55.5 NO 643.9 0.0 78.3 NO 654.6 0.0 87.4 NO CBIN11184 A4 ZCI10181 Curb Inlet 643.2 655.7 12.5 643.9 7.4 11.5 NO 644.2 11.8 18.3 NO 644.5 17.5 27.0 NO 655.7 19.8 35.0 NO CBIN11185 A4 ZCI10182 Curb Inlet 644.1 656.4 12.3 644.7 2.8 2.8 NO 644.8 4.4 4.4 NO 645.0 6.5 6.5 NO 656.4 7.3 8.0 NO CLEN10853 A4 ZCO13086 Cleanout 630.0 638.6 8.6 631.2 0.0 34.7 NO 631.7 0.0 55.6 NO 638.7 0.0 77.3 NO 640.3 0.0 87.5 YES CLEN10854 A4 ZCO12481 Cleanout 625.0 632.8 7.8 625.9 0.0 34.7 NO 626.1 0.0 55.8 NO 634.0 0.0 82.7 YES 635.6 0.0 80.9 YES CBIN11186 A4 CI1046 Curb Inlet 627.2 633.2 6.0 627.2 0.0 0.0 NO 627.2 0.0 0.0 NO 634.0 0.0 6.9 NO 635.6 0.0 18.5 YES OTHR10919 A4 ZOTHER10153Other 622.6 632.2 9.6 623.8 0.0 34.7 NO 624.3 0.0 55.8 NO 633.3 0.0 91.9 YES 635.0 0.0 91.4 YES CBIN11187 A4 CI0411 Curb Inlet 624.3 635.1 10.8 624.3 0.0 0.0 NO 624.3 0.0 0.0 NO 635.1 0.0 9.0 NO 635.3 0.0 9.7 NO CBIN11188 A4 CI0407 Curb Inlet 625.5 634.6 9.1 625.5 0.0 0.0 NO 625.5 0.0 0.0 NO 634.7 0.0 6.6 NO 635.1 0.0 6.7 NO CLEN10855 A4 ZCO11670 Cleanout 616.1 626.3 10.2 617.7 8.7 42.6 NO 618.4 13.7 68.3 NO 627.0 19.9 86.0 NO 628.3 22.4 89.9 YES OTHR10920 A4 ZOTHER10154Other 622.1 630.2 8.0 623.3 5.3 70.5 NO 624.0 8.3 111.9 NO 634.7 12.0 157.2 YES 640.7 13.4 165.1 YES CLEN10856 A4 ZCO11996 Cleanout 639.5 651.0 11.4 640.8 0.0 64.2 NO 641.2 0.0 102.2 NO 641.6 0.0 145.5 NO 651.0 0.0 153.8 NO CLEN10857 A4 ZCO12482 Cleanout 613.4 621.7 8.2 614.8 8.4 40.3 NO 615.2 13.6 64.2 NO 615.8 20.2 91.8 NO 621.7 22.8 105.5 NO CBIN11189 A4 CI0408 Curb Inlet 618.2 623.0 4.8 618.2 0.0 0.0 NO 618.2 0.0 0.0 NO 618.2 0.0 0.0 NO 618.8 0.0 4.3 NO CLEN10858 A4 ZCO10390 Cleanout 615.4 633.0 17.6 617.0 12.7 32.0 NO 617.5 20.5 51.3 NO 618.8 30.5 75.1 NO 633.0 34.5 85.0 NO OTHR10921 A4 ZOTHER10155Other 632.8 636.8 4.0 633.1 0.0 4.5 NO 633.2 0.0 7.2 NO 633.2 0.0 10.6 NO 633.3 0.0 12.0 NO OTHR10922 A4 ZOTHER10156Other 642.9 646.9 4.0 643.3 4.5 4.5 NO 643.4 7.2 7.2 NO 643.5 10.6 10.6 NO 643.6 12.0 12.0 NO CBIN11190 A4 ZCI10183 Curb Inlet 645.6 658.6 13.1 645.9 1.4 1.4 NO 646.0 2.2 2.2 NO 646.1 3.2 3.2 NO 658.7 3.6 5.5 NO CBIN11191 A4 CI0988 Curb Inlet 584.2 588.6 4.4 585.0 9.9 9.9 NO 585.4 17.2 17.2 NO 591.2 25.9 25.9 YES 594.4 29.5 29.5 YES CBIN11192 A4 CI1441 Curb Inlet 568.4 572.4 4.0 569.2 4.8 14.1 NO 569.4 7.6 23.7 NO 573.8 11.0 30.8 YES 575.4 12.3 32.9 YES CLEN10859 A4 ZCO10417 Cleanout 562.8 572.3 9.5 563.9 0.0 23.9 NO 564.3 0.0 39.3 NO 573.1 0.0 54.5 NO 574.7 0.0 54.3 YES CBIN11193 A4 CI1552 Curb Inlet 568.7 573.4 4.7 569.4 9.8 9.8 NO 569.7 15.7 15.7 NO 574.8 23.1 23.1 YES 576.4 26.1 26.1 YES CBIN11194 A4 ZCI10213 Curb Inlet 574.8 579.1 4.3 574.8 0.0 0.0 NO 574.8 0.0 0.0 NO 574.9 0.0 0.1 NO 579.1 0.0 2.3 NO CLEN10860 A4 ZCO12502 Cleanout 548.7 557.0 8.3 549.8 0.0 23.9 NO 550.2 0.0 39.4 NO 559.5 0.0 46.0 YES 561.0 0.0 46.3 YES CBIN11195 A4 CI1249 Curb Inlet 768.1 777.9 9.8 768.5 2.8 2.8 NO 768.5 4.4 4.4 NO 768.6 6.5 6.5 NO 768.6 7.4 7.4 NO CBIN11196 A4 CI1258 Curb Inlet 773.3 778.0 4.7 773.3 0.0 0.0 NO 773.3 0.0 0.0 NO 773.3 0.0 0.0 NO 773.3 0.0 0.0 NO CLEN10861 A4 ZCO10977 Cleanout 817.2 828.3 11.1 818.3 3.4 21.3 NO 818.8 5.4 38.6 NO 819.2 7.8 58.8 NO 819.4 8.7 67.2 NO CBIN11197 A4 CI1248 Curb Inlet 819.2 828.2 9.0 819.2 0.0 0.0 NO 819.2 0.0 0.0 NO 819.2 0.0 0.0 NO 819.4 0.0 0.0 NO CBIN11198 A4 CI1259 Curb Inlet 819.9 828.3 8.3 820.3 2.0 2.0 NO 820.4 4.0 4.0 NO 820.6 6.3 6.3 NO 820.6 7.3 7.3 NO CLEN10862 A4 ZCO11690 Cleanout 847.3 859.1 11.8 847.9 0.0 16.3 NO 848.1 0.0 29.7 NO 848.4 0.0 45.3 NO 848.4 0.0 51.8 NO CLEN10863 A4 ZCO11691 Cleanout 874.2 886.0 11.7 874.9 9.2 16.3 NO 875.1 17.8 29.7 NO 875.3 27.6 45.3 NO 875.4 31.7 51.8 NO CBIN11199 A4 CI1257 Curb Inlet 875.8 885.5 9.7 875.8 0.0 0.0 NO 875.8 0.0 0.0 NO 875.8 0.0 0.0 NO 875.8 0.0 0.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 76 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11200 A4 CI1260 Curb Inlet 876.9 886.0 9.0 876.9 0.0 0.0 NO 876.9 0.0 0.0 NO 876.9 0.0 0.0 NO 876.9 0.0 0.0 NO CLEN10864 A4 ZCO10427 Cleanout 903.0 912.9 9.9 903.5 0.0 7.4 NO 903.6 0.0 12.3 NO 903.7 0.0 18.4 NO 903.8 0.0 20.8 NO CLEN10865 A4 ZCO10428 Cleanout 928.7 940.2 11.4 929.2 7.5 7.5 NO 929.3 12.5 12.5 NO 929.5 18.6 18.6 NO 929.5 21.1 21.1 NO CBIN11201 A4 CI1256 Curb Inlet 929.9 939.7 9.8 929.9 0.0 0.0 NO 929.9 0.0 0.0 NO 929.9 0.0 0.0 NO 929.9 0.0 0.0 NO CBIN11202 A4 CI1261 Curb Inlet 931.9 940.2 8.3 931.9 0.0 0.0 NO 931.9 0.0 0.0 NO 931.9 0.0 0.0 NO 931.9 0.0 0.0 NO CLEN10866 A4 ZCO11045 Cleanout 929.1 949.2 20.1 929.7 0.0 29.0 NO 930.0 0.0 50.1 NO 949.2 0.0 75.9 NO 956.6 0.0 85.1 YES INLT10523 A4 ZINL10429 Inlet 935.3 943.3 8.1 943.4 27.6 27.6 NO 958.7 56.2 56.2 YES 1001.9 93.4 93.4 YES 1034.1 109.4 109.4 YES CLEN10867 A4 ZCO10430 Cleanout 953.0 963.7 10.8 953.0 0.0 0.0 NO 953.0 0.0 0.0 NO 953.0 0.0 0.0 NO 953.0 0.0 0.0 NO INLT10524 A4 INL13215 Inlet 955.6 965.3 9.7 955.6 0.0 0.0 NO 955.6 0.0 0.0 NO 955.6 0.0 0.0 NO 955.6 0.0 0.0 NO CBIN11203 A4 CI1255 Curb Inlet 980.4 991.4 10.9 980.4 0.0 0.0 NO 980.4 0.0 0.0 NO 980.4 0.0 0.0 NO 980.4 0.0 0.0 NO CBIN11204 A4 CI1263 Curb Inlet 983.2 991.7 8.5 983.2 0.0 0.0 NO 983.2 0.0 0.0 NO 983.2 0.0 0.0 NO 983.2 0.0 0.0 NO INLT10525 A4 ZINL12511 Inlet 971.3 978.1 6.8 972.0 1.5 21.9 NO 972.3 2.4 40.4 NO 972.5 3.4 61.3 NO 972.6 3.8 70.5 NO INLT10526 A4 ZINL10431 Inlet 981.4 985.4 4.0 982.1 21.4 21.4 NO 982.4 39.6 39.6 NO 982.6 60.3 60.3 NO 982.7 69.3 69.3 NO OTLT10144 A4 ZOUT10005 Outlet 919.3 923.3 4.0 919.9 0.0 14.3 NO 920.0 0.0 22.7 NO 920.2 0.0 33.2 NO 920.2 0.0 37.4 NO CBIN11205 A4 CI1254 Curb Inlet 1015.2 1025.3 10.1 1015.2 0.0 0.0 NO 1015.2 0.0 0.0 NO 1015.2 0.0 0.0 NO 1015.2 0.0 0.0 NO CLEN10868 A4 ZCO11046 Cleanout 1012.2 1024.7 12.5 1012.6 0.0 14.3 NO 1012.7 0.0 22.7 NO 1012.8 0.0 33.2 NO 1012.8 0.0 37.4 NO CBIN11206 A4 CI1264 Curb Inlet 1016.7 1025.7 9.0 1016.7 0.0 0.0 NO 1016.7 0.0 0.0 NO 1016.7 0.0 0.0 NO 1016.7 0.0 0.0 NO CLEN10869 A4 ZCO12512 Cleanout 1029.1 1040.7 11.7 1029.6 13.2 13.2 NO 1029.8 21.0 21.0 NO 1029.9 30.7 30.7 NO 1030.0 34.6 34.6 NO INLT10527 A4 INL13335 Inlet 1030.9 1042.7 11.8 1030.9 0.0 0.0 NO 1030.9 0.0 0.0 NO 1030.9 0.0 0.0 NO 1030.9 0.0 0.0 NO CLEN10870 A4 ZCO10432 Cleanout 1041.3 1052.5 11.2 1041.3 0.0 0.0 NO 1041.3 0.0 0.0 NO 1041.3 0.0 0.0 NO 1041.3 0.0 0.0 NO CBIN11207 A4 CI1253 Curb Inlet 1042.4 1052.4 10.0 1042.4 0.0 0.0 NO 1042.4 0.0 0.0 NO 1042.4 0.0 0.0 NO 1042.4 0.0 0.0 NO CBIN11208 A4 CI1266 Curb Inlet 1044.2 1052.4 8.2 1044.2 0.0 0.0 NO 1044.2 0.0 0.0 NO 1044.2 0.0 0.0 NO 1044.2 0.0 0.0 NO OTLT10145 A4 ZOUT10006 Outlet 948.8 956.6 7.8 950.0 0.0 12.4 NO 950.3 0.0 20.1 NO 950.6 0.0 29.6 NO 950.7 0.0 33.5 NO CLEN10871 A4 ZCO12888 Cleanout 1086.2 1099.0 12.8 1086.5 0.0 12.4 NO 1086.6 0.0 20.2 NO 1086.7 0.0 29.7 NO 1086.7 0.0 33.6 NO CLEN10872 A4 ZCO12024 Cleanout 1086.7 1098.9 12.2 1087.5 7.0 12.4 NO 1087.7 11.1 20.1 NO 1088.0 16.3 29.6 NO 1088.0 18.4 33.5 NO CBIN11209 A4 CI1267 Curb Inlet 1089.9 1099.0 9.1 1089.9 0.0 0.0 NO 1089.9 0.0 0.0 NO 1089.9 0.0 0.0 NO 1089.9 0.0 0.0 NO CLEN10873 A4 ZCO10433 Cleanout 1095.8 1107.4 11.6 1096.2 0.0 5.7 NO 1096.3 0.0 9.4 NO 1096.4 0.0 13.9 NO 1096.5 0.0 15.7 NO INLT10528 A4 INL13216 Inlet 1099.1 1107.6 8.5 1099.1 0.0 0.0 NO 1099.1 0.0 0.0 NO 1099.1 0.0 0.0 NO 1099.1 0.0 0.0 NO CBIN11210 A4 CI1251 Curb Inlet 1114.2 1123.8 9.6 1114.2 0.0 0.0 NO 1114.2 0.0 0.0 NO 1114.2 0.0 0.0 NO 1114.2 0.0 0.0 NO CLEN10874 A4 ZCO10978 Cleanout 1113.0 1124.1 11.1 1113.4 1.6 5.7 NO 1113.5 2.4 9.4 NO 1113.6 3.5 13.9 NO 1113.7 3.9 15.7 NO CBIN11211 A4 CI1269 Curb Inlet 1116.3 1124.3 8.0 1116.3 0.0 0.0 NO 1116.3 0.0 0.0 NO 1116.3 0.0 0.0 NO 1116.3 0.0 0.0 NO CLEN10875 A4 ZCO12513 Cleanout 1127.4 1138.3 10.9 1127.7 0.0 4.2 NO 1127.8 0.0 7.1 NO 1127.9 0.0 10.6 NO 1128.0 0.0 12.0 NO INLT10529 A4 ZINL10434 Inlet 816.2 820.4 4.1 817.1 0.0 21.3 NO 817.3 0.0 38.6 NO 817.4 0.0 58.4 NO 817.4 0.0 66.8 NO CLEN10876 A4 ZCO11696 Cleanout 554.8 559.9 5.1 559.9 0.0 18.9 NO 563.1 0.0 23.9 YES 570.3 0.0 32.0 YES 574.2 0.0 35.4 YES CLEN10877 A4 ZCO11534 Cleanout 559.4 565.0 5.6 560.6 9.0 19.3 NO 561.5 15.5 31.8 NO 566.8 23.4 46.4 YES 568.8 26.6 47.7 YES CLEN10878 A4 ZCO11535 Cleanout 555.8 562.8 7.0 556.9 0.0 22.9 NO 557.2 0.0 35.7 NO 562.9 0.0 80.6 NO 563.4 0.0 79.5 NO CLEN10879 A4 ZCO12027 Cleanout 555.0 561.3 6.4 556.0 4.9 12.4 NO 556.5 8.1 20.7 NO 561.8 12.2 33.7 NO 563.3 13.9 34.7 YES CLEN10880 A4 ZCO10448 Cleanout 553.1 561.3 8.2 555.1 3.4 38.2 NO 555.8 5.3 60.5 NO 561.7 7.7 86.2 NO 562.9 8.7 91.0 YES CLEN10881 A4 ZCO11699 Cleanout 555.7 566.0 10.3 558.1 1.1 102.8 NO 559.6 1.9 143.1 NO 566.1 2.9 291.0 NO 566.0 3.4 213.3 NO CLEN10882 A4 ZCO10449 Cleanout 597.9 604.2 6.3 599.0 0.0 27.2 NO 602.1 0.0 49.6 NO 608.2 0.0 65.6 YES 611.0 0.0 71.3 YES CLEN10883 A4 ZCO10450 Cleanout 596.6 610.1 13.5 610.1 0.0 23.0 NO 611.8 0.0 22.9 YES 617.6 0.0 27.8 YES 620.3 0.0 29.6 YES CLEN10884 A4 ZCO11705 Cleanout 556.4 560.9 4.5 556.7 0.0 0.8 NO 556.8 0.0 1.3 NO 556.9 0.0 1.9 NO 556.9 0.0 2.2 NO INLT10530 A4 ZINL11469 Inlet 602.9 609.5 6.5 602.9 0.0 0.0 NO 602.9 0.0 0.0 NO 609.5 0.0 3.4 NO 611.1 0.0 4.0 YES INLT10531 A4 ZINL11470 Inlet 622.3 631.8 9.6 622.7 0.0 2.5 NO 622.8 0.0 4.1 NO 630.0 0.0 6.0 NO 633.7 0.0 6.8 YES INLT10532 A4 ZINL12519 Inlet 606.3 614.2 7.9 614.2 1.5 12.2 NO 618.7 2.4 20.7 YES 626.7 3.4 24.2 YES 630.3 3.9 23.7 YES INLT10533 A4 ZINL11234 Inlet 527.3 535.9 8.6 528.8 1.1 48.0 NO 529.3 1.8 74.3 NO 529.8 2.6 107.4 NO 530.0 2.9 115.9 NO OTHR10923 A4 ZOTHER10230Other 522.9 531.4 8.5 524.1 0.0 48.0 NO 524.4 0.0 74.4 NO 524.9 0.0 104.2 NO 525.6 0.0 114.8 NO INLT10534 A4 ZINL11488 Inlet 562.8 569.0 6.2 562.8 0.0 0.0 NO 562.8 0.0 0.0 NO 569.1 0.0 3.9 NO 569.4 0.0 7.8 NO INLT10535 A4 ZINL12521 Inlet 556.0 564.5 8.5 561.8 0.0 5.0 NO 564.5 0.0 10.6 NO 564.6 0.0 14.3 NO 565.0 0.0 14.2 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 77 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10536 A4 ZINL12522 Inlet 538.4 542.4 4.0 539.3 2.5 9.9 NO 539.8 5.1 18.0 NO 540.1 8.0 23.5 NO 540.2 9.1 26.3 NO INLT10537 A4 ZINL12820 Inlet 534.6 538.6 4.0 543.0 18.1 18.1 YES 558.6 33.5 33.5 YES 583.4 52.0 52.0 YES 596.2 59.9 59.9 YES OTLT10146 A4 ZOUT10021 Outlet 535.9 539.9 4.0 536.6 0.0 10.0 NO 536.9 0.0 25.6 NO 537.1 0.0 40.1 NO 537.2 0.0 45.7 NO INLT10538 A4 ZINL13120 Inlet 537.4 541.4 4.0 539.3 10.1 10.1 NO 539.7 18.0 25.8 NO 539.9 27.4 40.2 NO 540.0 31.2 45.8 NO CBIN11212 A4 CI0990 Curb Inlet 546.3 553.9 7.6 547.1 16.4 42.2 NO 547.4 28.4 78.6 NO 547.7 43.5 123.9 NO 547.9 49.8 143.3 NO CBIN11213 A4 CI0577 Curb Inlet 533.2 537.2 4.0 534.1 14.4 14.4 NO 534.5 24.8 24.8 NO 537.2 37.3 37.3 NO 538.0 42.4 42.4 NO CBIN11214 A4 CI0576 Curb Inlet 532.3 536.3 4.0 533.4 14.9 29.3 NO 533.9 26.4 51.2 NO 536.3 40.7 80.8 NO 536.9 46.7 87.1 NO CBIN11215 A4 CI0466 Curb Inlet 520.5 526.6 6.1 522.5 4.1 13.9 NO 526.6 7.5 34.8 NO 528.0 12.0 68.8 YES 528.8 13.8 70.2 YES CBIN11216 A4 CI1568 Curb Inlet 598.5 603.8 5.3 600.4 9.9 27.1 NO 602.9 17.4 49.6 NO 609.4 26.5 65.9 YES 612.5 30.3 74.1 YES CBIN11217 A4 ZCI10230 Curb Inlet 637.7 641.7 4.0 638.1 1.6 1.6 NO 638.2 2.7 2.7 NO 638.3 4.1 4.1 NO 638.4 4.6 4.6 NO CBIN11218 A4 ZCI10231 Curb Inlet 619.3 623.3 4.0 620.5 8.4 10.9 NO 623.3 15.0 19.0 NO 629.9 22.7 27.2 YES 633.6 25.9 31.1 YES CBIN11219 A4 ZCI10232 Curb Inlet 618.8 622.8 4.0 619.3 0.0 10.7 NO 620.0 0.0 19.6 NO 628.8 0.0 22.9 YES 632.4 0.0 24.3 YES CBIN11220 A4 CI1567 Curb Inlet 604.5 608.5 4.0 608.6 0.0 13.9 NO 616.7 0.0 17.3 YES 624.1 0.0 17.0 YES 627.6 0.0 17.0 YES CBIN11221 A4 ZCI10233 Curb Inlet 637.2 641.2 4.0 637.5 0.9 2.5 NO 637.6 1.4 4.1 NO 637.7 2.0 6.1 NO 637.7 2.3 6.9 NO CBIN11222 A4 CI0462 Curb Inlet 533.3 537.3 4.0 542.2 10.3 25.7 YES 556.2 18.0 44.4 YES 578.4 27.2 65.4 YES 589.9 31.0 74.1 YES CBIN11223 A4 ZCI10236 Curb Inlet 500.1 504.1 4.0 500.1 0.0 0.0 NO 500.1 0.0 0.0 NO 500.1 0.0 0.0 NO 500.1 0.0 0.0 NO CBIN11224 A4 CI1583 Curb Inlet 601.6 608.3 6.7 608.3 8.8 22.7 NO 615.7 15.1 26.2 YES 622.7 22.8 33.3 YES 626.0 26.0 35.6 YES CBIN11225 A4 ZCI10237 Curb Inlet 595.3 599.3 4.0 602.8 0.0 22.8 YES 608.6 0.0 21.8 YES 613.4 0.0 24.7 YES 615.6 0.0 26.2 YES CBIN11226 A4 CI10241 Curb Inlet 562.7 569.1 6.4 562.7 0.0 0.0 NO 562.7 0.0 0.0 NO 569.2 0.0 8.4 NO 569.4 0.0 9.2 NO CBIN11227 A4 CI10242 Curb Inlet 561.3 567.5 6.2 561.5 0.0 0.1 NO 561.9 0.0 0.3 NO 567.6 0.0 12.0 NO 569.4 0.0 13.4 YES CBIN11228 A4 CI0756 Curb Inlet 560.6 565.9 5.3 560.6 0.0 0.0 NO 561.6 0.0 0.9 NO 566.9 0.0 3.4 NO 568.9 0.0 5.2 YES CBIN11229 A4 CI10243 Curb Inlet 557.4 561.4 4.0 558.0 1.4 3.3 NO 558.2 2.2 5.4 NO 561.9 3.3 12.4 NO 563.4 3.8 18.3 YES CBIN11230 A4 CI10244 Curb Inlet 556.5 561.3 4.8 557.0 0.6 3.9 NO 557.3 1.0 6.3 NO 562.1 1.5 36.4 NO 563.5 1.7 33.0 YES CBIN11231 A4 CI10245 Curb Inlet 557.4 561.4 4.0 558.2 6.7 6.7 NO 558.4 11.4 11.4 NO 562.3 17.2 17.2 NO 564.0 19.7 19.7 YES CBIN11232 A4 CI1558 Curb Inlet 555.8 560.1 4.3 556.8 1.6 8.1 NO 557.2 2.5 13.6 NO 562.1 3.8 22.8 YES 563.7 4.4 25.7 YES CBOL10005 A4 ZCBO10010 Curb Outlet 593.7 597.7 4.0 594.2 29.5 43.1 NO 594.3 50.0 67.4 NO 594.3 74.9 94.6 NO 594.4 85.2 105.7 NO CBIN11233 A4 CI0992 Curb Inlet 551.5 555.5 4.0 551.5 0.0 0.0 NO 551.5 0.0 0.0 NO 551.5 0.0 0.0 NO 551.5 0.0 0.0 NO CBIN11234 A4 CI0993 Curb Inlet 546.4 553.6 7.3 548.8 25.7 25.7 NO 549.4 49.4 49.4 NO 549.9 77.3 77.3 NO 550.2 89.2 89.2 NO INLT10539 A4 ZINL12525 Inlet 562.9 573.1 10.1 562.9 0.0 0.0 NO 562.9 0.0 0.0 NO 562.9 0.0 0.0 NO 562.9 0.0 0.0 NO CBIN11235 A4 CI0921 Curb Inlet 539.9 543.9 4.0 541.1 0.0 0.0 NO 544.2 0.0 5.7 NO 547.6 0.0 4.5 YES 549.4 0.0 4.7 YES CBIN11236 A4 CI0922 Curb Inlet 539.8 543.8 4.0 541.1 8.1 8.1 NO 544.1 14.3 18.6 NO 547.5 21.6 21.6 YES 549.4 24.7 24.7 YES CBIN11237 A4 CI0552 Curb Inlet 554.8 559.2 4.5 555.5 6.6 7.3 NO 555.7 10.9 12.1 NO 555.9 16.4 18.1 NO 556.0 18.6 20.6 NO CBIN11238 A4 CI1492 Curb Inlet 533.0 537.0 4.0 533.6 2.6 2.6 NO 533.8 4.9 4.9 NO 534.1 7.7 7.7 NO 534.3 8.8 8.8 NO OTLT10147 A4 ZOUT10022 Outlet 532.3 536.3 4.0 532.8 1.2 11.5 NO 533.0 2.2 28.3 NO 533.2 3.4 44.5 NO 533.2 3.8 51.4 NO OTHR10924 A4 ZOTHER10249Other 558.3 565.3 6.9 558.6 0.8 0.8 NO 558.6 1.3 1.3 NO 558.7 2.0 2.0 NO 558.7 2.2 2.2 NO CBIN11239 A4 CI1252 Curb Inlet 1093.4 1099.4 6.0 1093.4 0.0 0.0 NO 1093.4 0.0 0.0 NO 1093.4 0.0 0.0 NO 1093.4 0.0 0.0 NO CBIN11240 A4 CI10256 Curb Inlet 1060.9 1072.0 11.2 1060.9 0.0 0.0 NO 1060.9 0.0 0.0 NO 1060.9 0.0 0.0 NO 1060.9 0.0 0.0 NO CBIN11241 A4 CI10727 Curb Inlet 1063.7 1072.4 8.7 1063.7 0.0 0.0 NO 1063.7 0.0 0.0 NO 1063.7 0.0 0.0 NO 1063.7 0.0 0.0 NO CLEN10885 A4 ZCO12030 Cleanout 1013.1 1025.5 12.4 1013.7 1.2 14.3 NO 1013.9 1.9 22.7 NO 1014.0 2.7 33.2 NO 1014.1 3.0 37.4 NO CLEN10886 A4 ZCO12586 Cleanout 520.0 531.2 11.2 521.8 2.4 96.0 NO 522.6 3.8 163.9 NO 523.6 5.5 241.8 NO 524.7 6.2 275.1 NO OTHR10925 A4 ZOTHER10288Other 516.9 525.1 8.3 519.5 0.0 96.1 NO 520.6 0.0 164.8 NO 522.3 0.0 240.7 NO 525.2 0.0 285.2 NO CLEN10887 A4 ZCO11260 Cleanout 531.8 544.1 12.4 532.3 0.0 44.6 NO 532.5 0.0 82.1 NO 532.7 0.0 127.1 NO 532.8 0.0 146.3 NO OTHR10926 A4 ZOTHER10289Other 529.4 544.0 14.6 530.7 0.0 44.6 NO 531.2 0.0 82.1 NO 531.7 0.0 127.2 NO 531.9 0.0 146.4 NO OTHR10927 A4 ZOTHER10290Other 527.6 537.1 9.4 529.0 2.8 48.1 NO 529.5 4.5 87.8 NO 530.1 6.7 135.6 NO 530.3 7.7 156.0 NO OTHR10928 A4 ZOTHER10291Other 528.6 538.3 9.7 529.9 1.1 45.5 NO 530.4 1.7 83.6 NO 530.9 2.5 129.4 NO 531.2 2.8 148.9 NO OTHR10929 A4 ZOTHER10292Other 515.7 523.2 7.4 518.1 3.6 98.7 NO 518.9 5.6 172.5 NO 519.8 8.1 246.8 NO 520.5 9.1 287.0 NO CBIN11242 A4 CI1675 Curb Inlet 537.0 543.1 6.0 545.0 0.0 3.7 YES 547.5 0.0 6.9 YES 553.3 0.0 8.3 YES 556.3 0.0 9.2 YES OTHR10930 A4 ZOTHER10301Other 536.3 543.4 7.1 545.0 4.0 214.1 YES 547.4 6.6 349.8 YES 553.2 9.8 445.0 YES 556.3 11.1 490.0 YES OTLT10148 A4 ZINL12596 Outlet 544.4 548.4 4.0 544.4 13.9 13.9 NO 544.4 24.4 24.4 NO 544.4 37.4 37.4 NO 544.4 42.6 42.6 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 78 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11243 A4 CI0948 Curb Inlet 546.7 552.2 5.5 546.7 0.0 0.0 NO 546.7 0.0 0.0 NO 546.7 0.0 0.0 NO 546.7 0.0 0.0 NO CLEN10888 A4 ZCO12057 Cleanout 546.4 551.2 4.8 546.4 0.0 0.0 NO 546.4 0.0 0.0 NO 546.4 0.0 0.0 NO 546.4 0.0 0.0 NO INLT10540 A4 ZINL12058 Inlet 558.9 568.2 9.3 558.9 0.0 0.0 NO 558.9 0.0 0.0 NO 558.9 0.0 0.0 NO 558.9 0.0 0.0 NO CBIN11244 A4 CI10304 Curb Inlet 544.6 548.6 4.0 544.6 0.0 0.0 NO 544.6 0.0 0.0 NO 544.6 0.0 0.0 NO 544.6 0.0 0.0 NO OTHR10931 A4 ZOTHER10327Other 658.9 668.0 9.1 658.9 0.0 0.0 NO 658.9 0.0 0.0 NO 668.2 0.0 10.4 NO 668.3 0.0 12.0 NO OTHR10932 A4 ZOTHER10328Other 651.8 659.9 8.1 651.8 0.0 0.0 NO 651.8 0.0 0.0 NO 660.1 0.0 18.8 NO 660.7 0.0 21.8 NO OTHR10933 A4 ZOTHER10329Other 641.6 650.1 8.5 641.6 0.0 0.0 NO 641.6 0.0 0.0 NO 641.6 0.0 0.1 NO 650.1 0.0 11.7 NO CLEN10889 A4 ZCO13081 Cleanout 631.6 641.0 9.4 632.8 0.0 64.2 NO 633.2 0.0 102.4 NO 641.0 0.0 148.6 NO 642.8 0.0 166.3 YES CLEN10890 A4 ZCO12603 Cleanout 631.9 640.5 8.6 632.8 0.0 0.1 NO 633.2 0.0 0.2 NO 640.5 0.0 12.7 NO 642.9 0.0 21.0 YES INLT10541 A4 ZINL056 Inlet 644.6 650.6 6.0 644.6 0.0 0.0 NO 644.6 0.0 0.0 NO 644.6 0.0 0.0 NO 644.6 0.0 0.0 NO CBIN11245 A4 CI1282 Curb Inlet 623.8 633.2 9.4 624.1 0.0 1.3 NO 624.1 0.0 2.0 NO 634.8 0.0 21.9 YES 640.7 0.0 21.3 YES OTHR10934 A4 ZOTHER10330Other 624.6 633.7 9.1 624.8 1.3 1.3 NO 624.9 2.0 2.0 NO 634.8 3.0 19.3 YES 640.7 3.3 15.9 YES CLEN10891 A4 ZCO10551 Cleanout 556.7 564.4 7.7 558.1 18.9 30.4 NO 565.7 35.7 59.5 YES 575.3 54.5 71.8 YES 580.7 62.8 81.3 YES CBIN11246 A4 CI0028 Curb Inlet 526.2 532.2 6.0 529.6 0.0 0.0 NO 530.6 0.0 0.1 NO 532.2 0.0 0.1 NO 532.6 0.0 1.4 NO CLEN10892 A4 ZCO10552 Cleanout 526.1 532.1 6.0 529.6 21.3 63.3 NO 530.6 35.8 91.9 NO 532.1 53.6 110.7 NO 532.5 61.1 119.0 NO CBIN11247 A4 CI0467 Curb Inlet 527.3 534.9 7.6 528.1 0.0 0.1 NO 528.7 0.0 0.3 NO 529.0 0.0 0.8 NO 529.2 0.0 0.6 NO CLEN10893 A4 ZCO11057 Cleanout 525.6 534.3 8.8 528.0 0.0 69.8 NO 528.7 0.0 102.4 NO 529.0 0.0 127.7 NO 529.2 0.0 135.2 NO CLEN10894 A4 ZCO11743 Cleanout 539.8 545.8 6.0 541.4 0.0 43.5 NO 547.1 0.0 62.4 YES 550.8 0.0 64.7 YES 553.0 0.0 67.6 YES CLEN10895 A4 ZCO11744 Cleanout 548.7 554.8 6.1 550.1 5.8 35.7 NO 556.8 9.5 55.1 YES 563.1 13.9 64.1 YES 566.7 15.7 69.1 YES CLEN10896 A4 ZCO12609 Cleanout 541.3 553.2 12.0 543.2 0.0 29.6 NO 543.8 0.0 43.8 NO 544.4 0.0 60.8 NO 544.6 0.0 66.1 NO CLEN10897 A4 ZCO12610 Cleanout 541.2 553.4 12.2 543.3 0.0 32.8 NO 543.8 0.0 46.2 NO 544.2 0.0 55.8 NO 544.4 0.0 59.3 NO CLEN10898 A4 ZCO12611 Cleanout 543.7 551.5 7.8 545.0 7.1 32.6 NO 546.2 11.0 45.8 NO 547.5 16.0 55.9 NO 548.1 17.9 58.3 NO CBIN11248 A4 CI0565 Curb Inlet 546.8 551.3 4.5 546.8 0.0 0.0 NO 546.8 0.0 0.0 NO 546.8 0.0 0.0 NO 546.8 0.0 0.0 NO CLEN10899 A4 ZCO12071 Cleanout 540.5 554.8 14.3 542.5 0.0 44.3 NO 543.1 0.0 75.1 NO 543.5 0.0 105.7 NO 543.8 0.0 120.6 NO CLEN10900 A4 ZCO12072 Cleanout 540.5 555.0 14.5 542.7 0.0 33.5 NO 543.1 0.0 46.9 NO 543.6 0.0 56.7 NO 543.8 0.0 61.2 NO CLEN10901 A4 CO14013 Cleanout 542.0 554.4 12.4 542.6 0.0 0.1 NO 543.0 0.0 0.2 NO 543.5 0.0 0.2 NO 543.7 0.0 0.2 NO OTHR10935 A4 ZOTHER10336Other 540.3 554.6 14.3 542.6 0.0 37.0 NO 543.0 0.0 48.6 NO 543.5 0.0 58.6 NO 543.7 0.0 63.8 NO CBIN11249 A4 CI0567 Curb Inlet 545.2 553.3 8.1 546.6 55.1 55.1 NO 553.3 87.3 87.3 NO 555.0 127.8 127.8 YES 558.0 144.2 144.2 YES OTHR10936 A4 ZOTHER10337Other 539.9 554.3 14.4 542.4 0.0 70.2 NO 542.7 0.0 116.5 NO 543.3 0.0 167.1 NO 543.5 0.0 184.0 NO OTHR10937 A4 ZOTHER10338Other 539.9 553.2 13.3 541.9 5.3 47.5 NO 542.3 8.4 81.8 NO 542.7 12.3 114.4 NO 542.9 13.9 132.6 NO CBIN11250 A4 CI0566 Curb Inlet 544.4 553.5 9.1 544.4 0.0 0.0 NO 544.4 0.0 0.0 NO 544.4 0.0 0.0 NO 544.4 0.0 0.0 NO CLEN10902 A4 ZCO12073 Cleanout 541.6 551.7 10.1 543.7 0.0 32.6 NO 544.2 0.0 45.6 NO 544.5 0.0 55.1 NO 544.7 0.0 58.3 NO INLT10542 A4 ZINL12832 Inlet 771.2 778.2 7.0 771.2 0.0 0.0 NO 771.2 0.0 0.0 NO 771.2 0.0 0.0 NO 771.2 0.0 0.0 NO CBIN11251 A4 CI1522 Curb Inlet 850.0 859.3 9.3 850.0 0.0 0.0 NO 850.0 0.0 0.0 NO 850.0 0.0 0.0 NO 850.0 0.0 0.0 NO CBIN11252 A4 CI0664 Curb Inlet 544.1 548.6 4.5 544.1 0.0 0.0 NO 548.7 0.0 6.6 NO 552.3 0.0 5.9 YES 554.7 0.0 6.2 YES CBIN11253 A4 CI0665 Curb Inlet 542.9 548.4 5.5 542.9 0.0 0.0 NO 548.4 0.0 3.3 NO 552.3 0.0 3.4 YES 554.7 0.0 2.8 YES CLEN10903 A4 ZCO12625 Cleanout 542.2 547.7 5.5 542.7 6.4 6.4 NO 548.4 10.2 14.5 NO 552.3 15.1 15.1 YES 554.7 17.1 17.1 YES CLEN10904 A4 ZCO12626 Cleanout 540.7 546.7 6.1 542.3 2.8 43.7 NO 548.4 4.3 65.4 YES 552.3 6.3 67.5 YES 554.6 7.1 70.7 YES CBIN11254 A4 CI1678 Curb Inlet 585.3 590.2 4.9 585.3 0.0 0.0 NO 585.3 0.0 0.0 NO 585.3 0.0 0.0 NO 585.3 0.0 0.0 NO CLEN10905 A4 ZCO10990 Cleanout 584.7 591.1 6.4 584.7 0.0 0.0 NO 584.7 0.0 0.0 NO 584.7 0.0 0.0 NO 584.7 0.0 0.0 NO CLEN10906 A4 ZCO10585 Cleanout 583.0 596.5 13.6 583.0 0.0 0.0 NO 583.0 0.0 0.0 NO 583.0 0.0 0.0 NO 583.0 0.0 0.0 NO CLEN10907 A4 ZCO10586 Cleanout 581.7 600.1 18.4 581.9 1.7 1.7 NO 582.0 2.6 2.6 NO 582.0 3.7 3.7 NO 582.1 4.2 4.2 NO INLT10543 A4 ZINL10587 Inlet 577.7 583.5 5.7 577.9 0.0 1.6 NO 577.9 0.0 2.6 NO 578.0 0.0 3.7 NO 578.0 0.0 4.2 NO INLT10544 A4 ZINL11286 Inlet 562.7 568.3 5.6 562.9 0.0 1.6 NO 562.9 0.0 2.6 NO 567.2 0.0 3.7 NO 568.9 0.0 4.2 NO OTLT10149 A4 OUT037 Outlet 553.6 560.9 7.3 559.3 1.6 16.3 NO 562.9 2.6 23.3 YES 567.2 3.9 23.0 YES 568.9 4.4 24.2 YES OTLT10150 A4 ZOUT10312 Outlet 559.0 568.1 9.1 561.8 13.2 322.4 NO 563.3 22.2 495.9 NO 567.3 32.8 776.7 NO 569.0 37.3 828.4 NO OTHR10938 A4 ZOTHER10374Other 551.3 555.4 4.1 551.3 0.0 0.0 NO 551.3 0.0 0.0 NO 551.3 0.0 0.0 NO 551.3 0.0 0.0 NO CBIN11255 A4 CI0025 Curb Inlet 587.9 597.2 9.3 588.6 0.0 0.1 NO 595.9 0.0 0.1 NO 597.2 0.0 7.2 NO 597.2 0.0 6.2 NO CLEN10908 A4 ZCO11136 Cleanout 586.5 597.4 10.9 588.6 1.6 51.6 NO 596.0 2.5 87.1 NO 597.5 3.7 135.6 NO 597.5 4.1 132.6 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 79 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11256 A4 CI0030 Curb Inlet 592.2 597.1 4.9 592.2 0.0 0.0 NO 592.4 0.0 1.8 NO 597.2 0.0 11.3 NO 597.2 0.0 12.2 NO CLEN10909 A4 ZCO12629 Cleanout 588.0 597.9 9.9 589.6 8.7 50.1 NO 597.9 15.1 84.8 NO 598.0 23.2 123.0 NO 598.7 26.7 129.4 NO OTLT10151 A4 ZOUT10293 Outlet 584.0 588.0 4.0 588.6 0.0 284.3 NO 589.2 0.0 393.8 YES 589.5 0.0 522.6 YES 589.6 0.0 570.4 YES INLT10545 A4 ZINL13117 Inlet 585.3 589.3 4.0 593.1 2.4 278.5 YES 596.3 5.5 376.2 YES 600.6 9.1 477.2 YES 602.5 10.4 515.7 YES CLEN10910 A4 ZCO11749 Cleanout 597.5 611.2 13.7 598.8 10.3 41.7 NO 599.5 18.3 70.4 NO 611.6 28.1 118.0 NO 613.8 32.1 127.1 YES CBIN11257 A4 CI0942 Curb Inlet 610.6 615.7 5.1 610.6 0.0 0.0 NO 610.6 0.0 0.0 NO 615.9 0.0 16.8 NO 616.4 0.0 16.3 NO CLEN10911 A4 ZCO12630 Cleanout 605.1 615.4 10.3 605.9 5.1 28.9 NO 606.2 8.2 47.8 NO 615.5 11.9 92.8 NO 616.4 13.5 93.8 NO CBIN11258 A4 CI0943 Curb Inlet 607.2 612.4 5.2 607.2 0.0 0.0 NO 607.2 0.0 0.0 NO 612.5 0.0 8.2 NO 613.9 0.0 9.6 YES CLEN10912 A4 ZCO12631 Cleanout 642.3 652.9 10.5 643.0 0.0 9.6 NO 643.3 0.0 16.1 NO 643.5 0.0 24.1 NO 643.6 0.0 27.1 NO CLEN10913 A4 ZCO11062 Cleanout 643.8 652.9 9.1 644.6 9.6 9.6 NO 644.8 16.1 16.1 NO 645.2 24.1 24.1 NO 645.3 27.5 27.5 NO CLEN10914 A4 ZCO12632 Cleanout 644.9 652.9 8.0 644.9 0.0 0.0 NO 644.9 0.0 0.0 NO 644.9 0.0 0.0 NO 644.9 0.0 0.0 NO CBIN11259 A4 CI0679 Curb Inlet 648.2 655.4 7.2 648.2 0.0 0.0 NO 648.2 0.0 0.0 NO 648.2 0.0 0.0 NO 648.2 0.0 0.0 NO CLEN10915 A4 ZCO10991 Cleanout 598.4 611.3 12.8 598.9 0.0 3.1 NO 599.5 0.0 5.2 NO 611.7 0.0 15.8 NO 613.8 0.0 24.8 YES CLEN10916 A4 ZCO10588 Cleanout 606.5 614.4 7.9 606.9 0.0 3.1 NO 607.0 0.0 5.3 NO 614.5 0.0 14.0 NO 614.5 0.0 12.9 NO CLEN10917 A4 ZCO11750 Cleanout 626.4 636.4 10.0 627.3 0.0 24.2 NO 627.5 0.0 40.2 NO 627.8 0.0 60.0 NO 628.0 0.0 67.9 NO CLEN10918 A4 ZCO11751 Cleanout 638.1 648.7 10.6 639.0 15.1 24.2 NO 639.3 24.8 40.5 NO 639.7 36.9 60.3 NO 639.8 41.9 68.4 NO CBIN11260 A4 CI0941 Curb Inlet 643.6 648.5 4.9 643.6 0.0 0.0 NO 643.6 0.0 0.0 NO 643.6 0.0 0.0 NO 643.6 0.0 0.0 NO OTLT10152 A4 ZINL10625 Outlet 561.9 565.9 4.0 561.9 0.0 103.4 NO 562.0 0.0 200.8 NO 562.0 0.0 217.0 NO 562.0 0.0 221.4 NO CLEN10919 A4 ZCO10626 Cleanout 563.5 571.5 8.0 565.8 2.6 103.4 NO 567.3 4.1 191.8 NO 567.3 6.0 216.9 NO 571.5 6.8 222.5 NO CBIN11261 A4 CI1380 Curb Inlet 565.4 571.8 6.4 565.8 0.0 0.0 NO 567.5 0.0 1.0 NO 567.6 0.0 0.4 NO 571.8 0.0 2.5 NO CLEN10920 A4 ZCO11140 Cleanout 570.6 580.5 9.9 572.8 10.6 100.9 NO 580.6 18.7 218.0 NO 583.0 29.3 218.3 YES 584.4 33.6 222.6 YES CLEN10921 A4 ZCO12652 Cleanout 574.8 583.0 8.1 575.1 2.6 2.6 NO 583.0 5.0 18.1 NO 583.3 7.7 20.3 NO 584.6 8.8 18.1 YES CLEN10922 A4 ZCO12653 Cleanout 575.8 584.3 8.5 575.8 0.0 0.0 NO 584.3 0.0 12.5 NO 584.4 0.0 18.6 NO 584.6 0.0 13.1 NO CBIN11262 A4 CI1206 Curb Inlet 577.6 581.6 4.0 577.6 0.0 0.0 NO 577.6 0.0 0.0 NO 577.6 0.0 0.0 NO 577.6 0.0 0.0 NO OTLT10153 A4 ZOUT10387 Outlet 569.3 573.3 4.0 569.9 4.6 4.6 NO 570.0 7.3 7.3 NO 570.2 10.7 10.7 NO 570.3 12.1 12.1 NO CBIN11263 A4 CI1447 Curb Inlet 573.3 584.2 10.9 574.1 5.3 12.1 NO 584.2 8.9 25.7 NO 584.3 13.1 40.1 NO 584.3 14.9 48.3 NO OTLT10154 A4 ZOUT10386 Outlet 569.3 573.3 4.0 573.5 0.0 12.1 NO 574.9 0.0 26.7 YES 577.2 0.0 41.6 YES 578.7 0.0 47.5 YES INLT10546 A4 ZINL11305 Inlet 610.8 618.0 7.2 610.8 0.0 0.0 NO 610.8 0.0 0.0 NO 610.8 0.0 0.0 NO 610.8 0.0 0.0 NO CLEN10923 A4 ZCO12655 Cleanout 583.4 597.3 13.9 584.0 7.1 7.1 NO 584.4 17.0 17.0 NO 585.4 27.6 27.6 NO 597.3 32.2 32.2 NO CLEN10924 A4 ZCO10627 Cleanout 581.2 592.0 10.8 581.8 0.0 7.2 NO 582.2 0.0 17.0 NO 592.0 0.0 29.1 NO 592.0 0.0 41.1 NO CBIN11264 A4 CI1390 Curb Inlet 574.4 583.6 9.2 575.6 0.0 0.1 NO 583.6 0.0 5.1 NO 585.8 0.0 16.1 YES 587.3 0.0 17.0 YES CBIN11265 A4 CI1382 Curb Inlet 574.9 583.5 8.6 575.6 0.0 0.1 NO 583.7 0.0 13.0 NO 585.9 0.0 18.7 YES 587.3 0.0 17.1 YES CLEN10925 A4 ZCO11758 Cleanout 573.9 583.1 9.2 575.6 0.0 89.1 NO 583.3 0.0 185.9 NO 585.8 0.0 197.2 YES 587.3 0.0 200.8 YES CLEN10926 A4 ZCO11759 Cleanout 591.4 598.8 7.3 592.9 0.0 89.1 NO 593.9 0.0 169.3 NO 604.4 0.0 197.6 YES 606.8 0.0 200.4 YES CBIN11266 A4 CI1383 Curb Inlet 591.9 599.2 7.3 592.9 0.0 0.0 NO 593.9 0.0 0.1 NO 604.4 0.0 9.2 YES 606.8 0.0 8.8 YES CBIN11267 A4 CI1384 Curb Inlet 592.4 598.9 6.5 593.1 4.6 4.6 NO 595.8 8.4 8.4 NO 604.5 13.0 13.0 YES 606.9 14.9 14.9 YES CLEN10927 A4 ZCO12117 Cleanout 619.8 633.4 13.6 621.3 1.3 83.6 NO 622.2 2.0 160.3 NO 636.3 3.0 195.2 YES 640.0 3.3 198.8 YES CBIN11268 A4 CI0027 Curb Inlet 632.9 644.4 11.6 633.3 0.0 3.3 NO 633.9 0.0 5.8 NO 634.5 0.0 9.4 NO 634.8 0.0 10.9 NO INLT10547 A4 INL002 Inlet 624.2 630.4 6.3 624.2 0.0 0.0 NO 624.2 0.0 0.0 NO 624.2 0.0 0.0 NO 624.2 0.0 0.0 NO CBIN11269 A4 CI1236 Curb Inlet 614.8 623.2 8.4 614.8 0.0 0.0 NO 614.8 0.0 0.0 NO 614.8 0.0 0.0 NO 614.8 0.0 0.0 NO CBIN11270 A4 CI1237 Curb Inlet 609.8 620.9 11.1 610.3 7.5 7.5 NO 610.5 13.7 13.7 NO 610.7 20.3 20.3 NO 610.7 23.3 23.3 NO CBIN11271 A4 CI0026 Curb Inlet 605.6 616.3 10.7 606.1 0.0 7.5 NO 606.3 0.0 13.7 NO 606.5 0.0 20.3 NO 606.6 0.0 23.3 NO CLEN10928 A4 ZCO11069 Cleanout 602.1 615.2 13.1 603.3 2.2 97.6 NO 603.8 3.6 196.4 NO 604.2 5.4 312.2 NO 604.5 6.2 363.0 NO OTHR10939 A4 ZOTHER10426Other 631.7 643.9 12.1 633.2 3.2 91.3 NO 633.9 5.2 184.9 NO 634.5 7.6 293.1 NO 634.7 8.6 340.9 NO CLEN10929 A4 ZCO12656 Cleanout 628.4 638.3 9.9 629.4 1.6 91.9 NO 629.8 2.5 186.0 NO 630.2 3.7 295.1 NO 630.3 4.1 343.2 NO INLT10548 A4 ZINL12657 Inlet 639.2 645.8 6.6 639.6 3.3 3.3 NO 639.7 5.8 5.8 NO 639.9 9.5 9.5 NO 639.9 11.0 11.0 NO OTHR10940 A4 ZOTHER10427Other 613.1 629.8 16.7 614.2 0.0 91.9 NO 614.7 0.0 186.0 NO 615.2 0.0 295.1 NO 615.4 0.0 343.2 NO OTLT10155 A4 OUT035 Outlet 588.8 597.1 8.3 588.8 2.2 98.4 NO 588.8 3.4 222.3 NO 588.8 5.0 315.8 NO 588.8 5.6 376.5 NO CLEN10930 A4 ZCO12785 Cleanout 590.2 603.4 13.2 592.7 0.0 97.6 NO 594.2 0.0 196.4 NO 603.4 0.0 315.8 NO 603.5 0.0 377.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 80 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10549 A4 ZINL11143 Inlet 654.3 658.3 4.0 654.3 0.0 0.0 NO 654.3 0.0 0.0 NO 654.3 0.0 0.0 NO 654.3 0.0 0.0 NO CBIN11272 A4 CI0031 Curb Inlet 589.9 597.7 7.9 589.9 0.0 0.0 NO 589.9 0.0 0.0 NO 589.9 0.0 0.0 NO 589.9 0.0 0.0 NO CBIN11273 A4 CI0032 Curb Inlet 588.7 597.3 8.6 589.0 1.4 1.4 NO 589.1 2.3 2.3 NO 589.2 3.5 3.5 NO 589.3 3.9 3.9 NO CBIN11274 A4 CI0693 Curb Inlet 572.3 581.6 9.4 572.9 0.0 2.6 NO 581.7 0.0 16.6 NO 583.2 0.0 23.9 YES 584.6 0.0 24.7 YES CLEN10931 A4 ZCO12660 Cleanout 607.2 614.9 7.7 608.6 1.4 84.9 NO 609.3 2.2 161.5 NO 619.3 3.2 194.1 YES 622.4 3.6 195.1 YES CBIN11275 A4 CI0575 Curb Inlet 576.8 585.5 8.7 578.0 0.0 0.3 NO 579.3 0.0 0.2 NO 585.5 0.0 0.3 NO 585.5 0.0 7.2 NO CBIN11276 A4 CI1276 Curb Inlet 576.0 587.1 11.1 578.3 53.2 53.3 NO 579.7 87.6 87.8 NO 581.3 130.2 130.3 NO 587.1 151.1 158.2 NO INLT10550 A4 ZINL12144 Inlet 576.8 592.4 15.6 578.3 0.0 0.3 NO 579.7 0.0 0.5 NO 581.3 0.0 1.0 NO 592.4 0.0 13.2 NO CBIN11277 A4 CI0162 Curb Inlet 575.9 585.0 9.1 576.9 0.0 0.1 NO 577.9 0.0 0.3 NO 579.1 0.0 0.4 NO 585.9 0.0 69.5 NO OTHR10941 A4 ZOTHER10468Other 574.6 586.5 11.8 577.9 0.0 342.0 NO 579.3 0.0 547.5 NO 586.5 0.0 771.7 NO 586.5 0.0 848.5 NO OTHR10942 A4 ZOTHER10469Other 577.3 587.7 10.4 578.3 0.0 13.4 NO 579.5 0.0 21.4 NO 580.9 0.0 31.4 NO 587.7 0.0 35.6 NO CBIN11278 A4 CI1108 Curb Inlet 576.2 587.0 10.8 578.2 0.0 13.1 NO 579.5 0.0 20.9 NO 580.9 0.0 31.1 NO 587.0 0.0 41.3 NO OTHR10943 A4 ZOTHER10470Other 575.2 585.2 10.1 576.9 3.1 135.2 NO 577.9 4.8 222.1 NO 579.1 7.0 328.8 NO 585.3 7.9 427.9 NO CBIN11279 A4 CI0155 Curb Inlet 578.4 587.1 8.7 578.4 0.0 0.0 NO 578.5 0.0 0.1 NO 579.5 0.0 0.5 NO 587.2 0.0 10.7 NO OTHR10944 A4 ZOTHER10471Other 576.0 587.1 11.1 577.7 0.0 134.1 NO 578.4 0.0 219.6 NO 579.5 0.0 324.8 NO 587.1 0.0 369.9 NO OTHR10945 A4 ZOTHER10472Other 562.2 573.0 10.7 566.1 0.6 582.6 NO 567.4 1.1 935.6 NO 573.0 1.8 1241.0 NO 573.0 2.0 1262.3 NO OTHR10946 A4 ZOTHER10474Other 575.5 587.6 12.1 578.2 0.0 286.2 NO 579.5 0.0 456.0 NO 580.7 0.0 597.8 NO 587.6 0.0 637.2 NO OTHR10947 A4 ZOTHER10475Other 575.1 587.5 12.4 578.2 7.4 341.1 NO 579.5 11.9 547.2 NO 580.7 17.7 779.2 NO 587.5 20.0 850.9 NO OTHR10948 A4 ZOTHER10476Other 574.3 585.9 11.6 577.8 0.0 392.2 NO 579.1 0.0 628.0 NO 580.5 0.0 900.6 NO 581.7 0.0 985.0 NO OTHR10949 A4 ZOTHER10477Other 573.2 585.0 11.7 576.3 0.0 509.7 NO 577.5 0.0 823.9 NO 578.8 0.0 1266.4 NO 585.0 0.0 1350.9 NO INLT10551 A4 INL054 Inlet 565.5 571.6 6.1 567.6 15.0 47.3 NO 568.3 26.1 76.3 NO 570.6 39.8 160.9 NO 571.0 45.5 185.4 NO OTHR10950 A4 ZOTHER10478Other 564.0 572.9 8.9 566.2 0.0 582.9 NO 567.5 0.0 934.5 NO 572.9 0.0 1242.6 NO 572.9 0.0 1267.4 NO CBIN11280 A4 CI1298 Curb Inlet 567.0 574.3 7.3 567.0 0.0 0.0 NO 567.5 0.0 0.4 NO 574.3 0.0 2.5 NO 574.3 0.0 2.8 NO CBIN11281 A4 CI1272 Curb Inlet 571.7 579.8 8.1 573.5 0.0 0.5 NO 574.6 0.0 0.5 NO 576.6 0.0 0.3 NO 580.2 0.0 21.2 NO INLT10552 A4 INL12695 Inlet 572.2 580.0 7.9 573.5 0.0 0.1 NO 574.6 0.0 0.2 NO 576.6 0.0 0.4 NO 580.4 0.0 22.8 NO OTHR10951 A4 ZOTHER10479Other 570.9 580.9 9.9 573.5 2.0 510.3 NO 574.5 3.3 824.7 NO 576.6 4.9 1178.8 NO 580.9 5.6 1248.7 NO OTHR10952 A4 ZOTHER10480Other 568.8 578.3 9.4 571.4 0.0 514.8 NO 572.5 0.0 828.6 NO 578.3 0.0 1150.0 NO 578.5 0.0 1212.3 NO OTHR10953 A4 ZOTHER10481Other 568.5 578.0 9.5 571.1 0.0 518.1 NO 572.2 0.0 830.4 NO 578.0 0.0 1214.6 NO 578.2 0.0 1442.6 NO OTHR10954 A4 ZOTHER10483Other 565.1 572.4 7.3 567.0 0.0 47.2 NO 567.5 0.0 76.2 NO 570.7 0.0 171.1 NO 571.2 0.0 191.3 NO CBIN11282 A4 CI1271 Curb Inlet 564.5 572.2 7.7 566.5 0.0 0.3 NO 567.5 0.0 0.3 NO 570.8 0.0 0.3 NO 571.4 0.0 0.3 NO OTHR10955 A4 ZOTHER10484Other 564.2 572.2 8.0 566.5 1.3 50.9 NO 567.5 2.1 78.0 NO 570.8 3.3 171.1 NO 571.3 3.8 193.3 NO OTHR10956 A4 ZOTHER10485Other 581.3 589.2 7.9 582.4 0.0 66.0 NO 583.1 0.0 109.0 NO 583.9 0.0 162.5 NO 589.2 0.0 221.3 NO CBIN11283 A4 CI0152 Curb Inlet 582.0 586.0 4.0 582.0 0.0 0.0 NO 582.6 0.0 0.2 NO 583.4 0.0 0.2 NO 586.9 0.0 7.0 NO CBIN11284 A4 CI0161 Curb Inlet 581.2 585.8 4.6 582.3 1.6 30.6 NO 582.8 2.7 52.9 NO 583.6 4.1 84.7 NO 587.0 4.6 118.5 YES OTHR10957 A4 ZOTHER10486Other 579.9 586.2 6.3 581.8 50.0 135.5 NO 582.6 82.2 221.6 NO 583.4 122.7 326.9 NO 586.8 141.5 407.6 NO INLT10553 A4 ZINL12696 Inlet 581.4 586.4 5.0 582.8 29.0 29.0 NO 583.4 50.3 50.3 NO 584.3 77.6 77.6 NO 587.4 89.2 89.2 NO CBIN11285 A4 CI0160 Curb Inlet 589.9 598.1 8.2 591.1 0.0 0.1 NO 591.7 0.0 0.1 NO 592.3 0.0 0.1 NO 593.2 0.0 0.1 NO OTHR10958 A4 ZOTHER10488Other 583.3 592.4 9.2 584.6 0.0 66.1 NO 585.1 0.0 108.9 NO 585.8 0.0 162.2 NO 592.5 0.0 192.6 NO CBIN11286 A4 CI0154 Curb Inlet 595.9 604.0 8.1 596.7 0.0 0.1 NO 597.1 0.0 0.2 NO 597.7 0.0 0.3 NO 597.9 0.0 0.3 NO OTHR10959 A4 ZOTHER10489Other 596.1 605.0 8.9 596.7 0.0 0.0 NO 597.1 0.0 0.0 NO 597.7 0.0 0.1 NO 597.9 0.0 0.1 NO CLEN10932 A4 ZCO10668 Cleanout 595.3 604.2 9.0 596.7 66.4 66.4 NO 597.1 109.4 109.4 NO 597.7 163.0 163.0 NO 597.9 187.9 187.9 NO CLEN10933 A4 ZCO10669 Cleanout 589.4 598.4 9.0 591.1 0.0 66.1 NO 591.6 0.0 109.0 NO 592.3 0.0 162.4 NO 593.2 0.0 187.9 NO CBIN11287 A4 CI0317 Curb Inlet 569.4 573.4 4.0 570.2 3.8 3.8 NO 570.4 6.1 6.1 NO 573.4 8.9 8.9 NO 573.4 10.0 10.0 NO CBIN11288 A4 CI0316 Curb Inlet 569.1 573.1 4.0 569.6 2.3 6.0 NO 569.7 3.7 9.7 NO 573.1 5.5 14.2 NO 573.1 6.2 16.1 NO OTLT10156 A4 OUT082 Outlet 567.1 573.1 6.0 567.7 0.0 6.0 NO 568.3 0.0 9.7 NO 570.7 0.0 17.1 NO 571.0 0.0 23.5 NO OTLT10157 A4 OUT021 Outlet 559.8 564.0 4.2 564.5 2.2 591.4 NO 565.6 3.5 939.5 YES 567.0 5.2 1243.9 YES 567.4 5.8 1266.6 YES OTLT10158 A4 OUT020 Outlet 560.0 565.1 5.1 564.3 0.0 29.2 NO 565.4 0.0 47.5 NO 567.0 0.0 71.1 YES 567.4 0.0 72.7 YES INLT10554 A4 ZINL12792 Inlet 571.0 575.5 4.4 571.7 0.0 0.1 NO 572.4 0.0 0.4 NO 575.5 0.0 2.1 NO 576.3 0.0 2.4 NO CLEN10934 A4 ZCO12793 Cleanout 567.3 575.9 8.5 568.8 0.0 30.5 NO 569.2 0.0 47.3 NO 570.8 0.0 64.2 NO 571.3 0.0 74.9 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 81 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTLT10159 A4 OUT046 Outlet 565.7 573.4 7.6 567.9 0.0 30.5 NO 568.5 0.0 47.3 NO 570.7 0.0 72.8 NO 571.1 0.0 90.1 NO CLEN10935 A4 ZCO11150 Cleanout 566.1 573.4 7.3 568.0 0.0 30.7 NO 568.6 0.0 47.6 NO 570.8 0.0 68.7 NO 573.4 0.0 89.5 NO CLEN10936 A4 ZCO12697 Cleanout 568.5 577.5 9.0 569.9 0.0 30.3 NO 570.3 0.0 47.0 NO 571.1 0.0 64.0 NO 571.6 0.0 70.9 NO CLEN10937 A4 ZCO12698 Cleanout 569.2 575.8 6.5 570.2 0.0 30.3 NO 570.5 0.0 47.0 NO 571.1 0.0 64.0 NO 571.6 0.0 71.0 NO OTHR10960 A4 ZOTHER10493Other 564.6 572.8 8.2 566.7 0.0 536.8 NO 567.9 0.0 858.5 NO 573.0 0.0 1186.6 NO 573.0 0.0 1271.9 NO CBIN11289 A4 CI0109 Curb Inlet 565.1 572.9 7.7 566.7 0.0 0.1 NO 567.9 0.0 0.1 NO 572.9 0.0 2.9 NO 573.3 0.0 11.1 NO INLT10555 A4 INL131 Inlet 568.2 574.0 5.8 569.2 0.0 0.1 NO 570.4 0.0 0.2 NO 575.2 0.0 38.8 YES 576.0 0.0 67.5 YES CBIN11290 A4 CI1273 Curb Inlet 567.7 575.1 7.4 569.2 0.0 0.8 NO 570.4 0.0 1.1 NO 575.2 0.0 45.6 NO 575.6 0.0 80.1 NO OTHR10961 A4 ZOTHER10494Other 566.0 575.1 9.1 569.2 21.8 539.9 NO 570.4 36.0 860.0 NO 575.2 54.3 1186.6 NO 575.2 62.0 1248.8 NO OTHR10962 A4 ZOTHER10495Other 574.3 585.6 11.3 576.8 0.0 430.5 NO 577.9 0.0 701.2 NO 579.7 0.0 1002.9 NO 585.6 0.0 1157.9 NO OTHR10963 A4 ZOTHER10502Other 1150.3 1158.0 7.7 1150.3 0.0 0.0 NO 1150.3 0.0 0.0 NO 1150.3 0.0 0.0 NO 1150.3 0.0 0.0 NO CLEN10938 A4 ZCO10708 Cleanout 1143.3 1155.3 12.1 1143.6 2.8 4.3 NO 1143.7 4.9 7.1 NO 1143.8 7.3 10.6 NO 1143.9 8.3 12.0 NO CBIN11291 A4 CI10486 Curb Inlet 1146.9 1157.6 10.7 1147.2 1.5 1.5 NO 1147.3 2.3 2.3 NO 1147.4 3.4 3.4 NO 1147.4 3.8 3.8 NO CBIN11292 A4 CI10672 Curb Inlet 1148.4 1156.8 8.4 1148.4 0.0 0.0 NO 1148.4 0.0 0.0 NO 1148.4 0.0 0.0 NO 1148.4 0.0 0.0 NO CBIN11293 A4 CI1250 Curb Inlet 1136.6 1147.9 11.3 1136.9 0.0 4.2 NO 1137.0 0.0 7.1 NO 1137.1 0.0 10.6 NO 1137.1 0.0 12.0 NO CBIN11294 A4 CI1270 Curb Inlet 1137.8 1148.8 11.0 1137.8 0.0 0.0 NO 1137.8 0.0 0.0 NO 1137.8 0.0 0.0 NO 1137.8 0.0 0.0 NO OTLT10160 A4 ZOUT10391 Outlet 539.3 547.8 8.5 539.3 0.0 124.3 NO 539.3 0.0 193.7 NO 539.3 0.0 278.0 NO 539.3 0.0 310.0 NO CLEN10939 A4 ZCO12709 Cleanout 595.7 604.3 8.6 597.3 6.8 35.6 NO 604.3 12.3 61.5 NO 606.3 18.8 78.4 YES 608.9 21.5 85.5 YES OTHR10964 A4 ZOTHER10519Other 520.4 527.2 6.8 522.5 0.0 13.9 NO 527.2 0.0 35.5 NO 527.9 0.0 90.1 NO 528.8 0.0 87.2 YES CBIN11295 A4 CI0463 Curb Inlet 520.7 527.7 7.0 522.5 0.0 12.1 NO 527.7 0.0 30.3 NO 528.1 0.0 62.8 NO 529.0 0.0 61.9 YES OTHR10965 A4 ZOTHER10520Other 580.0 588.9 8.9 581.9 0.0 50.5 NO 582.6 0.0 81.4 NO 583.5 0.0 121.0 NO 583.9 0.0 134.2 NO OTHR10966 A4 ZOTHER10532Other 850.9 855.9 5.0 852.7 2.8 50.5 NO 853.8 5.0 90.1 NO 853.9 7.7 136.8 NO 854.1 8.8 150.4 NO CBIN11296 A4 CI0534 Curb Inlet 601.6 606.3 4.7 601.6 0.0 0.0 NO 601.6 0.0 0.0 NO 606.5 0.0 11.0 NO 608.4 0.0 13.1 YES CLEN10940 A4 ZCO10713 Cleanout 599.9 606.6 6.7 601.2 0.0 42.5 NO 601.6 0.0 68.4 NO 606.7 0.0 111.5 NO 608.3 0.0 117.1 YES CBIN11297 A4 CI0533 Curb Inlet 601.9 607.2 5.4 601.9 0.0 0.0 NO 601.9 0.0 0.0 NO 607.4 0.0 9.9 NO 608.3 0.0 11.4 YES CLEN10941 A4 ZCO10714 Cleanout 602.1 610.7 8.6 603.6 8.0 42.4 NO 604.1 13.0 68.2 NO 610.8 19.4 99.7 NO 610.8 22.0 111.0 NO CLEN10942 A4 ZCO11776 Cleanout 595.1 605.7 10.6 597.8 6.0 163.3 NO 598.8 9.8 264.6 NO 605.8 14.6 367.0 NO 605.9 16.6 431.4 NO CLEN10943 A4 ZCO11777 Cleanout 611.3 620.6 9.3 612.4 10.8 34.8 NO 612.8 17.5 55.8 NO 620.6 25.7 82.2 NO 620.8 29.0 101.2 NO CLEN10944 A4 ZCO11778 Cleanout 612.5 621.6 9.1 612.8 0.0 2.3 NO 612.9 0.0 3.6 NO 614.1 0.0 7.2 NO 621.7 0.0 17.4 NO CBIN11298 A4 CI1148 Curb Inlet 609.9 615.3 5.4 609.9 0.0 0.0 NO 610.2 0.0 0.2 NO 610.7 0.0 0.3 NO 615.4 0.0 9.8 NO CLEN10945 A4 ZCO10715 Cleanout 605.6 614.2 8.6 606.8 1.5 47.4 NO 607.4 2.4 76.2 NO 608.8 3.6 107.3 NO 614.3 4.1 123.9 NO CLEN10946 A4 ZCO10716 Cleanout 603.8 614.2 10.4 606.2 3.7 104.7 NO 607.0 6.3 169.8 NO 608.7 9.6 239.7 NO 613.0 11.0 279.1 NO CLEN10947 A4 ZCO10717 Cleanout 608.6 614.8 6.2 609.8 1.1 46.0 NO 610.2 1.7 74.0 NO 610.6 2.6 104.0 NO 614.9 2.9 123.5 NO CBIN11299 A4 CI1149 Curb Inlet 610.2 614.7 4.5 610.2 0.0 0.0 NO 610.2 0.0 0.0 NO 610.7 0.0 0.1 NO 614.9 0.0 6.7 NO CLEN10948 A4 ZCO11888 Cleanout 610.2 618.2 8.0 611.9 6.4 45.0 NO 618.2 10.4 72.4 NO 618.2 15.5 101.7 NO 618.6 17.5 114.7 NO CBIN11300 A4 CI10489 Curb Inlet 618.6 624.1 5.5 618.9 5.2 5.2 NO 619.0 8.2 8.2 NO 619.1 12.1 12.1 NO 619.4 13.7 13.7 NO OTHR10967 A4 ZOTHER10651Other 630.9 640.3 9.4 631.8 0.0 29.5 NO 632.0 0.0 47.4 NO 632.3 0.0 66.1 NO 632.4 0.0 71.6 NO OTHR10968 A4 ZOTHER10653Other 636.8 642.8 6.0 637.5 3.7 29.5 NO 637.7 6.0 47.4 NO 637.9 8.9 66.1 NO 637.9 10.1 71.6 NO CLEN10949 A4 ZCO11779 Cleanout 637.6 645.7 8.0 638.8 0.0 26.1 NO 639.1 0.0 41.9 NO 639.6 0.0 58.6 NO 639.7 0.0 62.7 NO CBIN11301 A4 CI1151 Curb Inlet 639.5 646.0 6.5 639.5 0.0 0.0 NO 639.5 0.0 0.0 NO 639.6 0.0 0.1 NO 639.7 0.0 0.2 NO CBIN11302 A4 CI10490 Curb Inlet 638.4 645.5 7.1 638.8 0.0 0.1 NO 639.2 0.0 0.1 NO 639.6 0.0 0.4 NO 639.7 0.0 0.4 NO CLEN10950 A4 ZCO12167 Cleanout 653.3 660.7 7.4 654.2 0.0 26.1 NO 654.5 0.0 42.0 NO 654.9 0.0 58.5 NO 655.0 0.0 64.3 NO CLEN10951 A4 ZCO10718 Cleanout 666.9 676.2 9.3 667.6 4.1 12.2 NO 667.7 6.5 19.4 NO 668.1 9.6 28.1 NO 668.7 10.8 30.5 NO CLEN10952 A4 ZCO10719 Cleanout 667.6 677.0 9.4 668.4 0.0 8.4 NO 668.6 0.0 13.4 NO 668.9 0.0 19.3 NO 669.1 0.0 20.7 NO CBIN11303 A4 CI0886 Curb Inlet 671.2 677.4 6.1 671.2 0.0 0.0 NO 671.2 0.0 0.0 NO 671.2 0.0 0.0 NO 671.2 0.0 0.0 NO CLEN10953 A4 ZCO10995 Cleanout 669.7 683.4 13.6 670.6 2.9 8.5 NO 670.9 4.6 13.5 NO 671.3 6.8 19.4 NO 671.4 7.7 23.6 NO CBIN11304 A4 CI0887 Curb Inlet 676.3 684.1 7.8 676.3 0.0 0.0 NO 676.3 0.0 0.0 NO 676.3 0.0 0.0 NO 676.3 0.0 0.0 NO CBIN11305 A4 CI0410 Curb Inlet 609.8 615.0 5.2 610.3 1.7 1.7 NO 610.4 2.6 2.6 NO 610.5 3.8 3.8 NO 615.1 4.3 7.9 NO CLEN10954 A4 ZCO10720 Cleanout 607.1 615.0 7.8 608.3 0.0 41.7 NO 608.7 0.0 66.6 NO 609.6 0.0 94.8 NO 615.0 0.0 114.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 82 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN10955 A4 ZCO11780 Cleanout 601.9 612.2 10.3 604.2 0.0 105.5 NO 605.0 0.0 170.1 NO 608.0 0.0 236.5 NO 612.3 0.0 267.9 NO CBIN11306 A4 CI0409 Curb Inlet 601.9 609.6 7.7 601.9 0.0 0.0 NO 602.3 0.0 0.0 NO 609.6 0.0 4.9 NO 609.6 0.0 10.8 NO CLEN10956 A4 ZCO11781 Cleanout 599.2 609.4 10.2 601.5 0.0 106.4 NO 602.3 0.0 172.2 NO 609.4 0.0 236.6 NO 609.6 0.0 266.3 NO CLEN10957 A4 ZCO12168 Cleanout 592.3 603.5 11.2 595.0 0.0 164.0 NO 596.2 0.0 265.2 NO 603.5 0.0 358.2 NO 603.6 0.0 405.4 NO CLEN10958 A4 ZCO12169 Cleanout 589.5 601.1 11.6 592.8 0.0 193.4 NO 594.2 0.0 313.0 NO 601.1 0.0 435.2 NO 601.2 0.0 496.6 NO CBIN11307 A4 CI1671 Curb Inlet 594.0 600.9 6.9 594.8 33.6 33.6 NO 597.0 55.1 55.1 NO 603.5 83.1 83.1 YES 606.5 94.6 94.6 YES CBIN11308 A4 CI1672 Curb Inlet 595.0 601.5 6.4 595.0 0.0 0.0 NO 595.0 0.0 0.0 NO 601.5 0.0 7.0 NO 601.6 0.0 9.6 NO CBIN11309 A4 CI1676 Curb Inlet 591.1 598.3 7.1 591.1 0.0 0.0 NO 591.7 0.0 0.5 NO 592.4 0.0 1.0 NO 598.3 0.0 3.7 NO CLEN10959 A4 ZCO11080 Cleanout 586.5 597.7 11.2 590.6 6.9 199.6 NO 591.6 11.1 322.8 NO 596.7 16.6 429.3 NO 597.7 18.8 486.2 NO CLEN10960 A4 ZCO11081 Cleanout 585.4 597.1 11.7 587.8 5.3 214.5 NO 588.6 9.1 347.3 NO 589.2 14.6 469.5 NO 589.6 16.9 550.4 NO CLEN10961 A4 ZCO12907 Cleanout 590.9 599.0 8.1 591.6 0.0 10.4 NO 591.8 0.0 16.8 NO 592.1 0.0 24.6 NO 592.1 0.0 27.7 NO INLT10556 A4 ZINL12908 Inlet 600.3 604.3 4.0 600.3 0.0 0.0 NO 600.3 0.0 0.0 NO 600.3 0.0 0.0 NO 600.3 0.0 0.0 NO CBIN11310 A4 CI1674 Curb Inlet 577.1 584.3 7.1 577.1 0.0 0.0 NO 577.1 0.0 0.0 NO 577.1 0.0 0.0 NO 577.1 0.0 0.0 NO CLEN10962 A4 ZCO11857 Cleanout 573.0 583.7 10.8 574.9 3.8 218.1 NO 575.5 6.4 352.9 NO 576.0 9.7 469.1 NO 576.5 11.0 523.9 NO CBIN11311 A4 CI1673 Curb Inlet 578.2 584.0 5.8 578.2 0.0 0.0 NO 578.2 0.0 0.0 NO 578.2 0.0 0.0 NO 578.2 0.0 0.0 NO CLEN10963 A4 ZCO11329 Cleanout 548.4 556.2 7.8 549.1 3.8 6.0 NO 549.3 5.9 9.6 NO 549.6 8.5 14.0 NO 549.8 9.6 15.8 NO CLEN10964 A4 ZCO12715 Cleanout 553.6 561.5 7.9 553.6 0.0 0.0 NO 553.6 0.0 0.0 NO 553.6 0.0 0.0 NO 553.6 0.0 0.0 NO INLT10557 A4 ZINL12716 Inlet 551.6 556.3 4.8 552.0 2.4 2.4 NO 552.1 3.8 3.8 NO 552.2 5.6 5.6 NO 552.3 6.3 6.3 NO INLT10558 A4 ZINL11330 Inlet 553.3 561.8 8.4 553.3 0.0 0.0 NO 553.3 0.0 0.0 NO 553.3 0.0 0.0 NO 553.3 0.0 0.0 NO INLT10559 A4 ZINL11331 Inlet 554.0 562.1 8.1 554.0 0.0 0.0 NO 554.0 0.0 0.0 NO 554.0 0.0 0.0 NO 554.0 0.0 0.0 NO INLT10560 A4 ZINL12720 Inlet 554.6 560.4 5.8 554.6 0.0 0.0 NO 554.6 0.0 0.0 NO 554.6 0.0 0.0 NO 554.6 0.0 0.0 NO CLEN10965 A4 ZCO12721 Cleanout 554.7 561.9 7.2 554.7 0.0 0.0 NO 554.7 0.0 0.0 NO 554.7 0.0 0.0 NO 554.7 0.0 0.0 NO INLT10561 A4 ZINL11152 Inlet 555.0 561.0 6.0 555.0 0.0 0.0 NO 555.0 0.0 0.0 NO 555.0 0.0 0.0 NO 555.0 0.0 0.0 NO OTHR10969 A4 ZOTHER10662Other 553.2 561.4 8.2 553.2 0.0 0.0 NO 553.2 0.0 0.0 NO 553.2 0.0 0.0 NO 553.2 0.0 0.0 NO CLEN10966 A4 ZCO10721 Cleanout 552.5 560.5 8.1 552.5 0.0 0.0 NO 552.5 0.0 0.0 NO 552.5 0.0 0.0 NO 552.5 0.0 0.0 NO CLEN10967 A4 ZCO10722 Cleanout 551.5 561.4 9.8 551.5 0.0 0.0 NO 551.5 0.0 0.0 NO 551.5 0.0 0.0 NO 551.5 0.0 0.0 NO CLEN10968 A4 ZCO10723 Cleanout 549.9 561.5 11.7 550.3 2.6 3.6 NO 550.4 4.1 5.7 NO 550.5 6.0 8.3 NO 550.6 6.8 9.4 NO INLT10562 A4 ZINL11333 Inlet 552.7 561.7 9.0 552.7 0.0 0.0 NO 552.7 0.0 0.0 NO 552.7 0.0 0.0 NO 552.7 0.0 0.0 NO INLT10563 A4 ZINL11334 Inlet 556.8 560.8 4.0 557.0 1.0 1.0 NO 557.1 1.6 1.6 NO 557.1 2.4 2.4 NO 557.2 2.7 2.7 NO INLT10564 A4 ZINL11335 Inlet 554.3 559.7 5.5 554.3 0.0 0.0 NO 554.3 0.0 0.0 NO 554.3 0.0 0.0 NO 554.3 0.0 0.0 NO OTLT10161 A4 ZOUT10393 Outlet 548.8 554.4 5.6 548.9 0.0 3.6 NO 549.0 0.0 5.7 NO 549.0 0.0 8.3 NO 549.0 0.0 9.4 NO CLEN10969 A4 ZCO10725 Cleanout 548.0 552.0 4.0 548.0 0.0 0.0 NO 548.0 0.0 0.0 NO 548.0 0.0 0.1 NO 548.0 0.0 0.4 NO CBIN11312 A4 CI1559 Curb Inlet 548.6 552.6 4.0 548.6 0.0 0.0 NO 548.6 0.0 0.0 NO 548.6 0.0 0.0 NO 548.6 0.0 0.0 NO CLEN10970 A4 ZCO11151 Cleanout 545.0 551.8 6.7 546.8 0.0 28.9 NO 547.1 0.0 39.3 NO 548.0 0.0 49.9 NO 548.6 0.0 51.8 NO CBIN11313 A4 CI10491 Curb Inlet 546.7 550.7 4.0 546.9 0.0 0.2 NO 547.2 0.0 0.5 NO 548.0 0.0 1.0 NO 550.7 0.0 1.0 NO INLT10565 A4 ZINL12722 Inlet 545.9 550.8 4.9 546.9 0.0 0.7 NO 547.2 0.0 2.3 NO 548.0 0.0 2.9 NO 548.6 0.0 4.6 NO CBIN11314 A4 CI1128 Curb Inlet 588.9 592.9 4.0 588.9 0.0 0.0 NO 588.9 0.0 0.0 NO 588.9 0.0 0.0 NO 588.9 0.0 0.0 NO CLEN10971 A4 ZCO12723 Cleanout 586.1 590.1 4.0 586.3 2.2 2.2 NO 586.4 3.7 3.7 NO 586.4 5.5 5.5 NO 586.5 6.3 6.3 NO CLEN10972 A4 ZCO12724 Cleanout 561.6 565.6 4.0 561.9 0.3 2.5 NO 561.9 0.5 4.1 NO 562.0 0.7 6.2 NO 562.0 0.8 7.0 NO INLT10566 A4 ZINL12727 Inlet 550.1 557.7 7.6 550.5 1.2 1.2 NO 550.6 1.9 1.9 NO 550.7 2.8 2.8 NO 550.8 3.2 3.2 NO INLT10567 A4 ZINL12728 Inlet 549.1 555.4 6.3 549.5 0.0 1.2 NO 549.6 0.0 1.9 NO 549.7 0.0 2.8 NO 549.7 0.0 3.1 NO INLT10568 A4 ZINL12729 Inlet 548.1 555.4 7.2 548.6 0.0 1.2 NO 548.7 0.0 1.9 NO 548.8 0.0 2.7 NO 548.8 0.0 3.1 NO INLT10569 A4 ZINL11337 Inlet 547.3 553.8 6.5 547.5 0.0 1.2 NO 547.6 0.0 1.9 NO 547.7 0.0 2.7 NO 547.7 0.0 3.1 NO INLT10570 A4 ZINL11339 Inlet 545.7 552.7 6.9 547.0 3.0 15.7 NO 547.3 4.7 24.9 NO 547.7 6.8 36.7 NO 547.8 7.7 41.2 NO INLT10571 A4 ZINL11340 Inlet 547.2 553.6 6.4 548.3 7.3 13.1 NO 548.6 11.6 20.7 NO 549.0 17.1 30.5 NO 549.1 19.4 34.2 NO INLT10572 A4 ZINL11341 Inlet 543.7 554.2 10.5 543.7 0.0 0.0 NO 543.8 0.0 0.0 NO 544.2 0.0 0.2 NO 544.3 0.0 0.2 NO INLT10573 A4 ZINL11342 Inlet 545.4 556.7 11.3 545.4 0.0 0.0 NO 545.4 0.0 0.0 NO 545.4 0.0 0.0 NO 545.4 0.0 0.0 NO CLEN10973 A4 ZCO10728 Cleanout 542.8 555.0 12.2 543.6 1.1 22.9 NO 543.8 1.7 36.0 NO 544.2 2.5 52.9 NO 544.3 2.8 59.7 NO CLEN10974 A4 ZCO10729 Cleanout 545.3 554.6 9.3 546.3 5.3 21.8 NO 546.6 8.3 35.0 NO 546.9 12.0 51.8 NO 547.0 13.5 58.4 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 83 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10574 A4 ZINL11157 Inlet 548.3 557.0 8.7 548.9 1.2 4.9 NO 549.1 1.9 7.7 NO 549.3 2.7 11.3 NO 549.3 3.1 12.7 NO INLT10575 A4 ZINL10730 Inlet 549.5 558.0 8.5 550.1 0.0 3.9 NO 550.3 0.0 6.1 NO 550.5 0.0 8.9 NO 550.5 0.0 10.0 NO INLT10576 A4 ZINL10731 Inlet 551.3 558.4 7.1 551.9 2.3 3.9 NO 552.0 3.6 6.1 NO 552.2 5.3 9.0 NO 552.3 5.9 10.1 NO INLT10577 A4 ZINL11343 Inlet 550.1 558.3 8.2 550.7 0.0 3.8 NO 550.9 0.0 6.0 NO 551.1 0.0 8.8 NO 551.1 0.0 10.0 NO INLT10578 A4 ZINL11344 Inlet 552.8 558.1 5.3 553.2 1.7 1.7 NO 553.3 2.7 2.7 NO 553.4 3.9 3.9 NO 553.4 4.4 4.4 NO INLT10579 A4 ZINL11345 Inlet 553.6 559.9 6.3 553.6 0.0 0.0 NO 553.6 0.0 0.0 NO 553.6 0.0 0.0 NO 553.6 0.0 0.0 NO OTHR10970 A4 ZOTHER10667Other 540.6 554.9 14.4 542.6 0.0 30.1 NO 543.2 0.0 44.7 NO 543.6 0.0 62.5 NO 543.9 0.0 67.5 NO CBIN11315 A4 CI1141 Curb Inlet 515.6 519.6 4.0 517.3 15.2 25.7 NO 521.1 25.7 41.7 YES 528.4 39.1 61.2 YES 532.3 44.7 69.5 YES OTLT10162 A4 OUT100 Outlet 514.0 518.0 4.0 514.0 0.0 25.7 NO 514.0 0.0 40.0 NO 514.0 0.0 56.8 NO 514.0 0.0 63.9 NO INLT10580 A4 INL108 Inlet 515.8 519.8 4.0 517.3 10.5 10.5 NO 521.2 17.7 17.7 YES 528.6 27.0 27.0 YES 532.5 30.9 30.9 YES INLT10581 A4 ZINL12801 Inlet 512.5 516.5 4.0 517.3 19.2 44.8 NO 522.3 32.0 70.6 YES 530.9 48.7 101.8 YES 535.4 55.7 115.0 YES CBIN11316 A4 CI1143 Curb Inlet 512.3 517.7 5.4 516.9 0.0 44.5 NO 520.5 0.0 69.4 YES 527.3 0.0 99.0 YES 530.8 0.0 111.5 YES CBIN11317 A4 CI1134 Curb Inlet 511.8 517.9 6.1 516.2 10.6 54.9 NO 519.6 17.8 85.3 YES 525.4 27.0 121.3 YES 528.4 30.9 136.4 YES CBIN11318 A4 CI1140 Curb Inlet 518.6 522.6 4.0 518.6 0.0 0.0 NO 518.8 0.0 0.2 NO 519.7 0.0 1.0 NO 522.6 0.0 1.2 NO OTHR10971 A4 ZOTHER10670Other 515.6 521.8 6.3 518.0 0.0 98.9 NO 518.8 0.0 170.8 NO 519.7 0.0 246.3 NO 520.4 0.0 289.0 NO CLEN10975 A4 ZCO12736 Cleanout 537.4 545.1 7.8 538.4 3.3 44.7 NO 538.7 5.3 82.2 NO 539.0 7.8 127.1 NO 539.1 8.8 146.3 NO CLEN10976 A4 ZCO10769 Cleanout 561.1 571.1 10.0 561.8 0.0 6.2 NO 562.1 0.0 10.1 NO 563.2 0.0 15.1 NO 571.1 0.0 24.3 NO CLEN10977 A4 ZCO11789 Cleanout 563.1 570.4 7.3 563.1 0.0 0.0 NO 563.1 0.0 0.0 NO 563.2 0.0 0.2 NO 565.3 0.0 13.2 NO CBIN11319 A4 CI0748 Curb Inlet 567.3 571.3 4.0 567.3 0.0 0.0 NO 567.3 0.0 0.0 NO 567.3 0.0 0.0 NO 567.4 0.0 2.1 NO CLEN10978 A4 ZCO11790 Cleanout 560.4 566.0 5.6 561.2 2.9 8.7 NO 561.5 4.5 14.1 NO 563.3 6.5 20.8 NO 566.1 7.4 24.8 NO CLEN10979 A4 ZCO12191 Cleanout 559.2 564.3 5.1 560.1 1.9 10.4 NO 560.4 3.0 16.9 NO 564.4 4.4 25.4 NO 565.1 5.0 28.5 NO CLEN10980 A4 ZCO12192 Cleanout 558.2 563.7 5.4 559.3 1.5 11.7 NO 559.8 2.3 19.0 NO 563.8 3.3 29.1 NO 565.0 3.8 25.6 YES CLEN10981 A4 ZCO12749 Cleanout 556.8 564.0 7.2 558.2 0.0 11.8 NO 559.6 0.0 18.2 NO 564.3 0.0 49.1 NO 565.2 0.0 48.4 YES CBIN11320 A4 CI10514 Curb Inlet 562.1 566.1 4.0 565.0 20.6 67.3 NO 566.2 35.1 92.3 NO 570.7 54.0 103.6 YES 573.1 61.9 107.2 YES CLEN10982 A4 ZCO12984 Cleanout 560.0 566.1 6.2 562.8 0.0 122.5 NO 566.1 0.0 122.7 NO 569.1 0.0 124.5 YES 571.4 0.0 122.3 YES CBIN11321 A4 CI10515 Curb Inlet 555.8 563.1 7.3 558.1 3.4 21.6 NO 559.7 5.7 26.5 NO 564.0 8.5 151.2 NO 565.6 9.7 92.7 YES CLEN10983 A4 ZCO13083 Cleanout 557.3 562.9 5.6 558.3 0.0 11.8 NO 559.7 0.0 18.7 NO 563.4 0.0 30.7 NO 565.0 0.0 24.5 YES CLEN10984 A4 ZCO13049 Cleanout 619.4 625.8 6.4 620.3 0.0 22.5 NO 620.5 0.0 36.0 NO 620.9 0.0 53.3 NO 626.4 0.0 60.2 NO CLEN10985 A4 ZCO12194 Cleanout 636.6 643.6 6.9 637.5 4.1 22.5 NO 637.7 6.5 36.0 NO 638.0 9.6 53.2 NO 638.5 10.9 60.2 NO CLEN10986 A4 ZCO10779 Cleanout 649.8 657.8 8.0 650.7 0.0 18.8 NO 651.0 0.0 30.0 NO 651.4 0.0 44.8 NO 651.5 0.0 51.7 NO CLEN10987 A4 ZCO10780 Cleanout 650.7 658.0 7.3 651.7 4.8 18.8 NO 652.1 7.6 30.0 NO 653.2 11.2 46.4 NO 658.0 12.6 51.7 NO CBIN11322 A4 CI0940 Curb Inlet 652.0 657.6 5.5 652.0 0.0 0.0 NO 652.0 0.0 0.0 NO 652.0 0.0 0.0 NO 652.0 0.0 0.0 NO CBIN11323 A4 CI0539 Curb Inlet 653.0 658.1 5.1 653.0 0.0 0.0 NO 653.0 0.0 0.0 NO 653.2 0.0 0.4 NO 653.4 0.0 1.3 NO CLEN10988 A4 ZCO11089 Cleanout 654.0 661.8 7.8 655.0 4.8 14.4 NO 655.4 7.8 23.0 NO 661.8 11.5 34.9 NO 661.8 13.0 39.9 NO CLEN10989 A4 ZCO12195 Cleanout 660.1 667.9 7.8 660.8 0.0 9.7 NO 661.0 0.0 15.4 NO 661.2 0.0 22.7 NO 661.6 0.0 25.7 NO CLEN10990 A4 ZCO12752 Cleanout 669.8 678.4 8.6 670.3 0.0 3.6 NO 670.4 0.0 5.7 NO 670.6 0.0 8.4 NO 670.6 0.0 9.5 NO CBIN11324 A4 CI0798 Curb Inlet 680.6 688.7 8.1 681.0 3.6 3.6 NO 681.1 5.8 5.8 NO 681.2 8.5 8.5 NO 681.2 9.6 9.6 NO CLEN10991 A4 ZCO10998 Cleanout 667.7 672.8 5.1 668.0 0.0 3.6 NO 668.1 0.0 5.7 NO 668.2 0.0 8.4 NO 668.3 0.0 9.5 NO CLEN10992 A4 ZCO10999 Cleanout 661.3 668.3 7.0 662.1 6.3 9.7 NO 662.3 10.0 15.4 NO 662.6 14.8 22.8 NO 662.7 16.6 25.7 NO CBIN11325 A4 CI0799 Curb Inlet 662.0 669.2 7.2 662.1 0.0 0.0 NO 662.3 0.0 0.0 NO 662.6 0.0 0.1 NO 662.7 0.0 0.1 NO CLEN10993 A4 ZCO12196 Cleanout 672.9 682.8 9.9 673.8 2.8 2.8 NO 674.1 4.6 4.6 NO 674.6 6.7 6.7 NO 682.8 7.6 7.6 NO CLEN10994 A4 ZCO12753 Cleanout 672.5 686.6 14.1 673.2 3.2 5.8 NO 673.5 5.0 9.3 NO 673.9 7.2 13.3 NO 686.6 8.1 15.8 NO CBIN11326 A4 CI0611 Curb Inlet 682.4 686.4 4.0 682.4 0.0 0.0 NO 682.4 0.0 0.0 NO 682.4 0.0 0.0 NO 682.4 0.0 0.6 NO CLEN10995 A4 ZCO11859 Cleanout 618.9 623.2 4.3 619.3 0.0 3.1 NO 619.4 0.0 5.3 NO 619.6 0.0 7.9 NO 619.7 0.0 9.0 NO CLEN10996 A4 ZCO11860 Cleanout 628.1 632.1 4.0 628.6 3.2 3.2 NO 628.7 5.5 5.5 NO 628.8 8.2 8.2 NO 628.9 9.3 9.3 NO OTHR10972 A4 ZOTHER10752Other 570.1 578.2 8.1 571.7 0.0 29.3 NO 572.4 0.0 46.0 NO 577.7 0.0 66.7 NO 578.2 0.0 74.1 NO OTLT10163 A4 ZOUT10051 Outlet 568.4 575.9 7.6 570.1 0.0 29.3 NO 570.6 0.0 45.7 NO 571.0 0.0 66.7 NO 571.1 0.0 73.7 NO OTHR10973 A4 ZOTHER10753Other 557.9 563.5 5.6 558.9 0.0 11.8 NO 559.8 0.0 19.0 NO 563.8 0.0 31.8 NO 565.0 0.0 30.4 YES CBIN11327 A4 CI0757 Curb Inlet 562.3 570.7 8.4 563.0 6.2 6.2 NO 563.3 10.2 10.2 NO 567.7 15.1 15.1 NO 570.7 17.1 17.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 84 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR10974 A4 ZOTHER10754Other 560.7 565.0 4.3 565.1 0.0 120.3 NO 565.5 0.0 120.1 NO 570.2 0.0 121.0 YES 572.5 0.0 124.8 YES CLEN10997 A4 ZCO13052 Cleanout 543.8 551.5 7.8 545.3 0.0 41.9 NO 545.9 0.0 77.5 NO 546.6 0.0 121.2 NO 546.8 0.0 139.8 NO CLEN10998 A4 ZCO11870 Cleanout 648.2 658.6 10.5 648.2 0.0 0.0 NO 648.2 0.0 0.0 NO 648.2 0.0 0.0 NO 648.2 0.0 0.0 NO CBIN11328 A4 CI1460 Curb Inlet 662.2 672.6 10.4 662.2 0.0 0.0 NO 662.2 0.0 0.0 NO 662.2 0.0 0.0 NO 662.2 0.0 0.0 NO OTHR10975 A4 ZOTHER10774Other 645.2 654.4 9.2 645.2 0.0 0.0 NO 645.2 0.0 0.0 NO 645.2 0.0 0.0 NO 645.4 0.0 0.3 NO CLEN10999 A4 ZCO11372 Cleanout 572.1 578.1 6.0 573.1 0.0 2.2 NO 578.2 0.0 8.5 NO 579.8 0.0 5.5 YES 581.8 0.0 5.9 YES INLT10582 A4 ZINL12762 Inlet 569.3 574.3 5.0 574.4 0.0 23.7 NO 575.3 0.0 22.2 YES 579.7 0.0 11.9 YES 581.8 0.0 11.7 YES INLT10583 A4 ZINL12867 Inlet 571.1 577.6 6.5 572.8 0.0 6.5 NO 577.7 0.0 8.1 NO 579.8 0.0 6.8 YES 581.8 0.0 6.9 YES CLEN11000 A4 ZCO13053 Cleanout 627.5 636.6 9.1 628.5 0.0 34.3 NO 628.8 0.0 55.1 NO 629.0 0.0 76.8 NO 629.3 0.0 84.0 NO CBIN11329 A4 CI0911 Curb Inlet 630.9 636.8 5.9 631.7 5.0 5.0 NO 631.9 7.7 7.7 NO 632.5 11.2 11.2 NO 636.8 12.8 12.8 NO CLEN11001 A4 ZCO10792 Cleanout 629.7 637.6 7.9 630.5 0.0 4.9 NO 630.7 0.0 7.6 NO 631.1 0.0 11.1 NO 637.6 0.0 13.9 NO CLEN11002 A4 ZCO10793 Cleanout 661.7 671.7 10.0 662.7 0.0 26.1 NO 663.1 0.0 41.9 NO 669.3 0.0 61.3 NO 671.7 0.0 69.9 NO CBIN11330 A4 CI1451 Curb Inlet 666.6 670.7 4.1 667.5 4.8 4.8 NO 667.8 7.7 7.7 NO 670.7 11.4 11.4 NO 671.7 12.9 12.9 NO CLEN11003 A4 ZCO11795 Cleanout 665.0 671.9 6.9 665.9 9.5 14.1 NO 666.2 15.4 22.7 NO 666.8 22.9 34.8 NO 672.0 26.0 40.1 NO CBIN11331 A4 CI0946 Curb Inlet 666.3 671.8 5.4 666.3 0.0 0.0 NO 666.3 0.0 0.0 NO 666.9 0.0 0.5 NO 671.8 0.0 5.4 NO CBIN11332 A4 ZCI10532 Curb Inlet 612.7 619.0 6.3 612.7 0.0 0.0 NO 612.7 0.0 0.0 NO 612.7 0.0 0.0 NO 612.7 0.0 0.0 NO INLT10584 A4 ZINL12206 Inlet 606.9 616.3 9.4 607.3 0.0 9.4 NO 607.4 0.0 15.0 NO 607.5 0.0 22.2 NO 607.5 0.0 25.1 NO CLEN11004 A4 ZCO12207 Cleanout 609.3 618.6 9.3 610.0 0.0 9.4 NO 610.2 0.0 15.0 NO 610.4 0.0 22.1 NO 610.5 0.0 25.0 NO CLEN11005 A4 ZCO12208 Cleanout 611.2 618.3 7.1 611.7 0.0 3.4 NO 611.8 0.0 5.4 NO 611.9 0.0 7.9 NO 612.0 0.0 8.9 NO CLEN11006 A4 ZCO12767 Cleanout 595.4 600.0 4.6 596.4 0.0 9.4 NO 596.9 0.0 14.9 NO 597.4 0.0 22.0 NO 597.7 0.0 25.1 NO OTHR10976 A4 ZOTHER10776Other 609.6 618.6 9.0 610.4 6.2 9.4 NO 610.6 9.9 15.0 NO 610.9 14.6 22.2 NO 611.0 16.5 25.1 NO CBIN11333 A4 ZCI10534 Curb Inlet 613.8 618.4 4.6 614.4 3.4 3.4 NO 614.5 5.4 5.4 NO 614.7 8.0 8.0 NO 614.8 9.0 9.0 NO CBIN11334 A4 ZCI10535 Curb Inlet 612.7 618.0 5.4 613.1 0.0 3.4 NO 613.3 0.0 5.4 NO 613.4 0.0 7.9 NO 613.5 0.0 8.9 NO CLEN11007 A4 ZCO12768 Cleanout 599.8 605.5 5.7 599.8 0.0 0.0 NO 599.8 0.0 0.0 NO 599.8 0.0 0.0 NO 599.8 0.0 0.0 NO CLEN11008 A4 ZCO10795 Cleanout 595.0 601.4 6.4 595.9 0.0 9.4 NO 596.7 0.0 14.8 NO 597.3 0.0 21.9 NO 597.4 0.0 25.1 NO CLEN11009 A4 ZCO11796 Cleanout 610.8 614.8 4.0 611.9 1.9 12.2 NO 612.3 3.2 19.8 NO 612.7 5.0 29.2 NO 613.1 5.7 33.2 NO CLEN11010 A4 ZCO12769 Cleanout 611.5 615.9 4.4 612.5 0.0 10.3 NO 612.9 0.0 16.5 NO 613.3 0.0 24.4 NO 613.4 0.0 27.6 NO CLEN11011 A4 ZCO10798 Cleanout 611.8 615.8 4.0 612.9 0.0 10.3 NO 613.2 0.0 16.5 NO 613.6 0.0 24.4 NO 613.8 0.0 27.6 NO CBIN11335 A4 CI1203 Curb Inlet 611.9 615.9 4.0 613.1 10.3 10.3 NO 613.4 16.5 16.5 NO 613.7 24.4 24.4 NO 614.0 27.6 27.6 NO CBIN11336 A4 CI1684 Curb Inlet 610.9 614.9 4.0 611.9 0.0 0.1 NO 612.3 0.0 0.1 NO 612.7 0.0 0.1 NO 613.1 0.0 0.1 NO CLEN11012 A4 ZCO10799 Cleanout 597.9 606.0 8.0 598.8 1.5 10.9 NO 599.1 2.4 17.6 NO 606.0 3.6 30.6 NO 606.5 4.1 34.5 NO CLEN11013 A4 ZCO10800 Cleanout 599.1 606.0 6.9 599.9 0.0 9.4 NO 600.1 0.0 15.2 NO 606.0 0.0 29.6 NO 606.6 0.0 31.2 NO CBIN11337 A4 CI0536 Curb Inlet 599.2 605.9 6.7 599.9 0.0 0.0 NO 600.1 0.0 0.0 NO 605.9 0.0 4.3 NO 606.7 0.0 8.6 NO CBIN11338 A4 CI0535 Curb Inlet 599.5 606.3 6.8 600.6 9.4 9.4 NO 601.2 15.2 15.2 NO 606.4 22.6 22.6 NO 607.7 25.6 25.6 YES CLEN11014 A4 ZCO12209 Cleanout 552.2 561.4 9.2 554.3 5.4 43.2 NO 555.1 8.7 68.4 NO 561.7 12.9 89.2 NO 562.4 14.6 88.0 NO CLEN11015 A4 ZCO12770 Cleanout 552.7 562.3 9.6 553.2 0.9 0.9 NO 562.3 1.4 1.6 NO 562.5 2.1 15.6 NO 562.8 2.3 15.1 NO CLEN11016 A4 ZCO12771 Cleanout 555.0 561.0 6.0 555.0 0.0 0.0 NO 555.0 0.0 0.3 NO 561.3 0.0 7.3 NO 561.6 0.0 8.5 NO CLEN11017 A4 ZCO11377 Cleanout 557.1 562.7 5.6 557.1 0.0 0.0 NO 557.3 0.0 0.3 NO 563.0 0.0 6.5 NO 563.4 0.0 6.8 NO OTHR10977 A4 ZOTHER10778Other 551.4 561.8 10.4 553.2 1.7 45.3 NO 554.7 2.7 69.6 NO 562.0 3.9 105.5 NO 562.2 4.4 107.2 NO CBIN11339 A4 CI1387 Curb Inlet 624.1 654.7 30.6 626.6 0.9 82.3 NO 654.7 1.4 158.7 NO 660.6 2.0 224.8 YES 665.1 2.2 228.9 YES CBIN11340 A4 CI1386 Curb Inlet 627.3 656.9 29.6 627.9 1.7 14.8 NO 656.9 3.1 32.3 NO 660.8 4.7 70.5 YES 665.4 5.3 76.6 YES INLT10585 A4 INL085 Inlet 632.3 641.2 8.9 632.7 4.8 4.8 NO 641.2 9.0 9.0 NO 660.9 13.9 18.7 YES 665.4 15.9 19.4 YES INLT10586 A4 INL084 Inlet 632.8 636.8 4.0 633.3 13.1 13.1 NO 640.2 26.6 26.6 YES 661.0 41.6 41.6 YES 665.6 48.0 48.0 YES OTHR10978 A4 ZOTHER10787Other 642.3 646.9 4.6 642.3 0.0 0.0 NO 642.3 0.0 1.1 NO 660.8 0.0 23.6 YES 665.4 0.0 23.4 YES CLEN11018 A4 ZCO10811 Cleanout 644.0 674.0 30.0 645.2 0.0 62.9 NO 674.0 0.0 125.4 NO 674.5 0.0 181.6 NO 679.7 0.0 182.9 YES CBIN11341 A4 CI1395 Curb Inlet 668.5 685.1 16.6 669.6 8.4 62.9 NO 670.1 14.0 125.4 NO 688.8 20.9 200.7 YES 694.1 23.7 206.2 YES CBIN11342 A4 CI1392 Curb Inlet 670.3 685.5 15.1 670.6 0.0 0.8 NO 670.7 0.0 1.4 NO 688.7 0.0 21.5 YES 694.1 0.0 23.3 YES CBIN11343 A4 ZCI10541 Curb Inlet 695.7 712.1 16.4 696.8 9.6 54.4 NO 697.3 19.4 111.2 NO 712.1 30.2 194.8 NO 715.2 34.8 204.2 YES CBIN11344 A4 ZCI10542 Curb Inlet 734.0 748.8 14.8 734.9 6.3 32.0 NO 735.2 10.1 58.7 NO 735.6 14.9 89.8 NO 736.0 16.8 102.2 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 85 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11345 A4 ZCI10543 Curb Inlet 696.6 715.9 19.2 697.7 0.0 13.3 NO 698.5 0.0 34.0 NO 716.0 0.0 62.0 NO 716.3 0.0 79.9 NO INLT10587 A4 ZINL10016 Inlet 708.3 712.3 4.0 708.9 13.4 13.4 NO 709.3 34.1 34.1 NO 712.7 56.1 56.1 NO 719.5 65.5 65.5 YES INLT10588 A4 ZINL12912 Inlet 750.3 755.9 5.6 750.3 0.0 0.0 NO 750.3 0.0 0.0 NO 750.3 0.0 0.0 NO 750.3 0.0 0.0 NO CBIN11346 A4 ZCI10544 Curb Inlet 735.4 749.8 14.5 735.4 0.0 0.0 NO 735.4 0.0 0.0 NO 735.6 0.0 0.1 NO 736.0 0.0 0.3 NO CBIN11347 A4 ZCI10545 Curb Inlet 763.3 778.1 14.8 764.0 2.2 26.2 NO 764.3 3.6 49.2 NO 764.6 5.3 75.8 NO 764.7 5.9 86.2 NO CBIN11348 A4 ZCI10546 Curb Inlet 789.1 802.6 13.5 789.8 0.0 24.1 NO 790.1 0.0 45.9 NO 790.4 0.0 70.8 NO 790.5 0.0 80.5 NO CBIN11349 A4 ZCI10547 Curb Inlet 819.8 832.1 12.3 820.3 1.0 8.7 NO 820.4 1.6 14.2 NO 820.5 2.3 21.0 NO 820.6 2.6 23.8 NO CLEN11019 A4 ZCO11094 Cleanout 796.6 812.2 15.6 797.3 0.0 10.4 NO 797.7 0.0 22.9 NO 798.1 0.0 36.6 NO 798.6 0.0 44.2 NO CBIN11350 A4 ZCI10548 Curb Inlet 792.3 807.4 15.1 793.0 5.3 15.5 NO 793.3 9.2 31.9 NO 793.6 13.9 50.1 NO 793.7 15.8 57.1 NO INLT10589 A4 ZINL10017 Inlet 798.3 802.3 4.0 799.1 10.4 10.4 NO 799.6 22.9 22.9 NO 802.3 36.6 36.6 NO 802.3 42.4 42.4 NO CLEN11020 A4 ZCO12913 Cleanout 832.8 850.9 18.1 833.3 1.8 7.8 NO 833.4 2.9 12.8 NO 833.6 4.2 18.9 NO 833.7 4.8 21.5 NO CLEN11021 A4 ZCO11797 Cleanout 795.3 823.7 28.4 796.2 0.0 77.6 NO 796.6 0.0 160.2 NO 797.0 0.0 249.8 NO 797.1 0.0 288.0 NO CLEN11022 A4 ZCO11798 Cleanout 807.3 827.1 19.8 808.1 6.5 77.6 NO 808.3 10.0 160.2 NO 808.5 14.5 249.8 NO 808.6 16.3 288.0 NO INLT10590 A4 ZINL11799 Inlet 803.9 822.6 18.7 803.9 0.0 0.0 NO 803.9 0.0 0.0 NO 803.9 0.0 0.0 NO 803.9 0.0 0.0 NO OTLT10164 A4 OUT038 Outlet 774.4 778.4 4.0 775.5 0.0 77.6 NO 775.9 0.0 160.2 NO 776.3 0.0 249.8 NO 776.5 0.0 288.0 NO CBIN11351 A4 ZCI10549 Curb Inlet 849.6 863.9 14.3 850.5 1.2 68.4 NO 850.9 1.9 145.2 NO 851.3 2.7 227.8 NO 851.4 3.1 263.1 NO CLEN11023 A4 ZCO10018 Cleanout 854.8 869.1 14.3 855.9 5.1 67.3 NO 856.5 8.0 143.5 NO 856.9 11.7 225.2 NO 857.1 13.2 260.1 NO CLEN11024 A4 ZCO10812 Cleanout 879.0 894.5 15.5 880.1 4.9 61.5 NO 880.7 10.1 133.4 NO 881.2 15.9 209.8 NO 881.4 18.3 242.6 NO CLEN11025 A4 ZCO10813 Cleanout 884.9 901.5 16.6 885.7 1.0 15.4 NO 886.0 1.5 34.4 NO 886.3 2.1 55.1 NO 886.4 2.4 63.9 NO INLT10591 A4 ZINL11569 Inlet 888.8 902.4 13.6 889.5 0.0 14.5 NO 889.8 0.0 32.9 NO 890.1 0.0 52.9 NO 890.2 0.0 61.4 NO INLT10592 A4 ZINL11392 Inlet 889.7 902.7 12.9 890.5 0.0 14.5 NO 890.9 0.0 32.8 NO 891.2 0.0 52.8 NO 891.3 0.0 61.2 NO INLT10593 A4 ZINL10814 Inlet 890.3 894.3 4.0 891.1 14.4 14.4 NO 891.5 32.7 32.7 NO 891.9 52.7 52.7 NO 892.0 61.1 61.1 NO CBIN11352 A4 ZCI10550 Curb Inlet 906.3 926.0 19.7 907.2 6.4 41.7 NO 907.6 11.7 85.2 NO 907.9 18.1 130.2 NO 908.0 20.7 151.9 NO CBIN11353 A4 ZCI10551 Curb Inlet 950.1 960.5 10.4 950.8 14.4 37.6 NO 951.2 32.1 78.5 NO 951.4 51.2 121.1 NO 951.6 59.4 141.2 NO CLEN11026 A4 ZCO12987 Cleanout 974.0 986.3 12.4 974.7 1.7 24.4 NO 975.0 2.9 53.2 NO 975.3 4.4 83.6 NO 975.4 4.9 96.6 NO INLT10594 A4 ZINL12222 Inlet 977.8 981.8 4.0 978.7 22.7 22.7 NO 979.2 50.3 50.3 NO 979.7 79.2 79.2 NO 979.9 91.5 91.5 NO INLT10595 A4 ZINL10815 Inlet 682.3 690.6 8.3 682.3 0.0 0.0 NO 682.3 0.0 0.0 NO 690.7 0.0 9.4 NO 694.1 0.0 9.7 YES INLT10596 A4 ZINL10816 Inlet 682.3 688.7 6.4 682.4 0.8 0.8 NO 682.5 1.4 1.4 NO 688.8 2.1 10.2 NO 694.1 2.4 8.8 YES CLEN11027 A4 ZCO10817 Cleanout 835.1 850.7 15.7 835.8 1.1 6.1 NO 836.0 1.8 10.1 NO 836.3 2.6 14.9 NO 836.4 3.0 16.9 NO CBIN11354 A4 ZCI10700 Curb Inlet 837.8 849.5 11.7 838.5 5.2 5.2 NO 838.6 8.5 8.5 NO 838.9 12.7 12.7 NO 838.9 14.4 14.4 NO CBIN11355 A4 ZCI10552 Curb Inlet 838.6 849.1 10.5 838.6 0.0 0.0 NO 838.7 0.0 0.0 NO 838.9 0.0 0.0 NO 839.0 0.0 0.0 NO INLT10597 A4 ZINL13056 Inlet 812.8 830.1 17.3 813.1 0.0 4.0 NO 813.2 0.0 6.3 NO 813.3 0.0 9.3 NO 813.4 0.0 10.5 NO CBIN11356 A4 ZCI10553 Curb Inlet 814.4 829.7 15.3 815.0 0.0 4.0 NO 815.1 0.0 6.4 NO 815.3 0.0 9.3 NO 815.4 0.0 10.5 NO CBIN11357 A4 ZCI10554 Curb Inlet 835.3 851.3 16.0 835.7 4.1 4.1 NO 835.8 6.5 6.5 NO 835.9 9.5 9.5 NO 835.9 10.7 10.7 NO CBIN11358 A4 ZCI10555 Curb Inlet 836.0 851.4 15.4 836.0 0.0 0.0 NO 836.0 0.0 0.0 NO 836.0 0.0 0.0 NO 836.0 0.0 0.0 NO CBIN11359 A4 ZCI10558 Curb Inlet 858.3 871.2 12.9 858.5 0.0 1.6 NO 858.6 0.0 3.0 NO 858.6 0.0 4.7 NO 858.6 0.0 5.4 NO INLT10598 A4 ZINL13057 Inlet 872.0 878.3 6.3 872.2 0.0 1.6 NO 872.2 0.0 3.1 NO 872.3 0.0 4.8 NO 872.3 0.0 5.5 NO INLT10599 A4 ZINL13058 Inlet 877.3 883.0 5.7 877.5 0.0 1.6 NO 877.6 0.0 3.1 NO 877.6 0.0 4.8 NO 877.7 0.0 5.5 NO INLT10600 A4 ZINL10019 Inlet 893.3 912.3 19.1 893.5 1.6 1.6 NO 893.5 3.1 3.1 NO 893.6 4.8 4.8 NO 893.6 5.5 5.5 NO CBIN11360 A4 ZCI10559 Curb Inlet 883.8 896.5 12.7 884.8 5.4 44.6 NO 885.2 9.4 90.7 NO 885.6 14.2 141.7 NO 885.7 16.1 163.8 NO CBIN11361 A4 ZCI10560 Curb Inlet 886.6 897.2 10.6 886.6 0.0 0.0 NO 886.6 0.0 0.0 NO 886.6 0.0 0.0 NO 886.6 0.0 0.0 NO CLEN11028 A4 ZCO10024 Cleanout 627.4 637.4 10.0 627.9 0.0 3.9 NO 628.1 0.0 6.3 NO 628.3 0.0 9.3 NO 628.3 0.0 10.5 NO CBIN11362 A4 ZCI10573 Curb Inlet 618.0 627.6 9.6 618.6 0.0 14.7 NO 618.8 0.0 23.6 NO 619.0 0.0 34.8 NO 619.1 0.0 39.3 NO CLEN11029 A4 ZCO13059 Cleanout 623.6 631.0 7.4 624.2 3.2 9.7 NO 624.3 5.1 15.5 NO 624.5 7.5 22.8 NO 624.5 8.4 25.8 NO CBIN11363 A4 ZCI10574 Curb Inlet 620.9 626.6 5.7 621.5 0.0 5.1 NO 621.6 0.0 8.1 NO 621.8 0.0 12.0 NO 621.9 0.0 13.6 NO CBIN11364 A4 ZCI10575 Curb Inlet 621.5 627.8 6.3 622.2 5.1 5.1 NO 622.4 8.1 8.1 NO 622.6 12.1 12.1 NO 622.7 13.6 13.6 NO CBIN11365 A4 ZCI10576 Curb Inlet 622.9 628.8 5.9 622.9 0.0 0.0 NO 622.9 0.0 0.0 NO 622.9 0.0 0.0 NO 622.9 0.0 0.0 NO CBIN11366 A4 ZCI10577 Curb Inlet 629.0 634.6 5.6 629.6 3.9 3.9 NO 629.8 6.4 6.4 NO 630.1 9.4 9.4 NO 630.2 10.6 10.6 NO CLEN11030 A4 ZCO12227 Cleanout 634.6 641.2 6.6 634.6 0.0 0.0 NO 634.6 0.0 0.0 NO 634.6 0.0 0.0 NO 634.6 0.0 0.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 86 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN11031 A4 ZCO10831 Cleanout 632.1 640.3 8.2 632.4 1.2 1.2 NO 632.5 1.9 1.9 NO 632.6 2.7 2.7 NO 632.6 3.1 3.1 NO CLEN11032 A4 ZCO10832 Cleanout 627.6 634.0 6.4 628.1 2.0 3.0 NO 628.2 3.2 4.8 NO 628.3 4.6 7.0 NO 628.4 5.2 7.9 NO CLEN11033 A4 ZCO10833 Cleanout 629.4 636.4 7.0 629.7 0.0 1.1 NO 629.8 0.0 1.7 NO 629.8 0.0 2.6 NO 629.9 0.0 2.9 NO CLEN11034 A4 ZCO11570 Cleanout 633.7 641.4 7.7 633.7 0.0 0.0 NO 633.7 0.0 0.0 NO 633.7 0.0 0.0 NO 633.7 0.0 0.0 NO CLEN11035 A4 ZCO11571 Cleanout 628.6 640.2 11.6 628.6 0.0 0.0 NO 628.6 0.0 0.0 NO 628.6 0.0 0.0 NO 628.6 0.0 0.0 NO CBIN11367 A4 ZCI10578 Curb Inlet 631.2 636.3 5.1 631.2 0.0 0.0 NO 631.2 0.0 0.0 NO 631.2 0.0 0.0 NO 631.2 0.0 0.0 NO CBIN11368 A4 ZCI10579 Curb Inlet 630.2 634.9 4.8 630.2 0.0 0.0 NO 630.2 0.0 0.0 NO 630.2 0.0 0.0 NO 630.2 0.0 0.0 NO CBIN11369 A4 ZCI10580 Curb Inlet 632.3 638.4 6.1 632.4 0.0 0.0 NO 632.5 0.0 0.0 NO 632.6 0.0 0.0 NO 632.6 0.0 0.0 NO INLT10601 A4 ZINL10025 Inlet 606.6 615.1 8.6 607.4 0.0 14.7 NO 607.6 0.0 23.6 NO 607.9 0.0 34.8 NO 608.0 0.0 39.2 NO OTLT10165 A4 OUT033 Outlet 597.5 610.9 13.4 597.5 3.7 18.1 NO 597.5 5.9 29.0 NO 597.5 8.6 42.8 NO 597.5 9.7 48.2 NO CLEN11036 A4 ZCO10834 Cleanout 605.2 619.0 13.8 606.2 0.0 14.7 NO 606.4 0.0 23.6 NO 606.7 0.0 34.9 NO 606.8 0.0 39.3 NO CBIN11370 A4 ZCI10581 Curb Inlet 626.9 631.9 5.0 626.9 0.0 0.0 NO 626.9 0.0 0.0 NO 626.9 0.0 0.0 NO 627.0 0.0 0.0 NO CBIN11371 A4 ZCI10582 Curb Inlet 628.8 635.5 6.7 628.8 0.0 0.0 NO 628.8 0.0 0.0 NO 628.8 0.0 0.0 NO 628.8 0.0 0.0 NO CLEN11037 A4 ZCO12988 Cleanout 626.3 632.6 6.3 626.7 0.0 2.9 NO 626.8 0.0 4.7 NO 626.9 0.0 6.9 NO 627.0 0.0 7.8 NO SEPR10020 A4 ZSEP10023 Separator 617.2 626.8 9.6 617.3 0.0 14.7 NO 617.4 0.0 23.6 NO 617.4 0.0 34.8 NO 618.0 0.0 39.3 NO INLT10602 A4 ZINL10837 Inlet 406.7 417.3 10.6 407.1 2.2 5.5 NO 407.2 3.4 8.7 NO 407.3 4.9 12.7 NO 408.4 5.5 14.4 NO CLEN11038 A4 ZCO10838 Cleanout 403.9 413.4 9.6 404.3 0.0 5.5 NO 404.4 0.0 8.7 NO 404.7 0.0 14.0 NO 413.5 0.0 25.6 NO CLEN11039 A4 ZCO10839 Cleanout 405.0 414.5 9.6 405.5 0.0 5.5 NO 405.6 0.0 8.7 NO 405.7 0.0 12.7 NO 414.5 0.0 25.0 NO CLEN11040 A4 ZCO11800 Cleanout 408.5 418.4 9.9 409.0 0.0 3.7 NO 409.1 0.0 5.9 NO 409.2 0.0 8.6 NO 409.3 0.0 9.7 NO SEPR10021 A4 ZSEP10024 Separator 404.6 414.3 9.8 405.1 0.0 5.5 NO 405.2 0.0 8.7 NO 405.3 0.0 12.7 NO 414.3 0.0 24.7 NO CLEN11041 A4 ZCO10026 Cleanout 409.7 420.2 10.5 410.4 0.0 3.7 NO 410.6 0.0 6.0 NO 410.8 0.0 8.7 NO 410.8 0.0 9.8 NO CLEN11042 A4 ZCO10840 Cleanout 410.2 420.4 10.2 410.8 0.0 3.7 NO 411.0 0.0 5.9 NO 411.2 0.0 8.7 NO 411.3 0.0 9.8 NO CLEN11043 A4 ZCO10841 Cleanout 410.8 418.7 7.9 411.5 0.0 3.8 NO 411.7 0.0 6.0 NO 411.9 0.0 8.8 NO 412.0 0.0 9.9 NO CLEN11044 A4 ZCO10842 Cleanout 408.0 414.2 6.2 408.0 0.0 0.0 NO 408.0 0.0 0.0 NO 408.0 0.0 0.0 NO 408.3 0.0 2.1 NO INLT10603 A4 ZINL11572 Inlet 417.1 422.0 4.9 417.1 0.0 0.0 NO 417.1 0.0 0.0 NO 417.1 0.0 0.0 NO 417.1 0.0 0.0 NO INLT10604 A4 ZINL10844 Inlet 414.4 419.9 5.5 414.8 3.8 3.8 NO 414.9 6.1 6.1 NO 415.0 8.8 8.8 NO 415.1 9.9 9.9 NO CLEN11045 A4 ZCO10847 Cleanout 442.0 451.7 9.7 442.9 0.0 8.9 NO 443.3 0.0 17.9 NO 443.6 0.0 27.4 NO 443.8 0.0 32.1 NO CLEN11046 A4 ZCO11801 Cleanout 442.3 452.1 9.8 443.2 0.0 8.9 NO 443.6 0.0 17.9 NO 444.0 0.0 27.4 NO 444.1 0.0 32.1 NO INLT10605 A4 ZINL11802 Inlet 443.2 450.8 7.6 444.1 1.0 9.0 NO 444.5 1.6 17.9 NO 444.9 2.3 27.4 NO 445.0 2.6 31.9 NO INLT10606 A4 ZINL11803 Inlet 446.4 452.2 5.8 447.1 0.9 8.1 NO 447.4 1.4 16.6 NO 447.6 2.1 25.5 NO 447.7 2.4 29.6 NO CLEN11047 A4 ZCO12920 Cleanout 447.6 453.4 5.9 448.4 1.5 7.4 NO 448.8 2.3 15.4 NO 449.3 3.3 23.6 NO 449.4 3.8 29.2 NO CLEN11048 A4 ZCO12921 Cleanout 448.4 453.9 5.6 449.2 0.0 6.0 NO 449.7 0.0 13.2 NO 450.2 0.0 21.4 NO 453.9 0.0 25.3 NO INLT10607 A4 ZINL11400 Inlet 449.8 453.8 4.0 450.6 6.2 6.2 NO 451.1 13.5 13.5 NO 453.8 20.7 20.7 NO 453.8 24.2 24.2 NO SEPR10022 A4 ZSEP10025 Separator 403.5 416.4 12.9 403.5 0.0 0.0 NO 403.5 0.0 0.0 NO 403.5 0.0 0.0 NO 403.5 0.0 0.0 NO OTLT10166 A4 ZOUT10303 Outlet 570.6 574.6 4.0 572.9 0.0 1.7 NO 573.7 0.0 2.8 NO 574.4 0.0 4.1 NO 574.8 0.0 4.7 NO INLT10608 A4 ZINL12871 Inlet 571.0 575.0 4.0 573.1 22.8 26.2 NO 573.7 39.8 45.2 NO 574.5 60.8 68.7 NO 574.8 69.9 78.8 NO INLT10609 A4 ZINL11406 Inlet 570.8 576.9 6.2 572.9 1.7 1.7 NO 573.7 2.8 2.8 NO 574.5 4.1 4.1 NO 574.8 4.7 4.7 NO INLT10610 A4 ZINL11407 Inlet 571.2 576.7 5.5 573.1 3.3 3.3 NO 573.7 5.4 5.4 NO 574.5 7.9 7.9 NO 574.8 8.9 8.9 NO CLEN11049 A4 ZCO12229 Cleanout 569.6 577.7 8.1 571.2 0.0 30.2 NO 571.6 0.0 46.9 NO 572.0 0.0 63.9 NO 572.1 0.0 70.9 NO INLT10611 A4 ZINL12230 Inlet 570.4 574.4 4.0 571.9 16.4 30.0 NO 572.3 28.1 46.7 NO 572.6 42.3 63.5 NO 572.7 48.2 70.5 NO INLT10612 A4 ZINL10855 Inlet 570.5 574.5 4.0 572.9 0.0 19.5 NO 573.7 0.0 28.5 NO 574.4 0.0 37.0 NO 574.8 0.0 40.7 NO OTLT10167 A4 ZOUT10058 Outlet 570.5 574.5 4.0 572.2 0.0 17.9 NO 572.3 0.0 24.4 NO 572.6 0.0 29.8 NO 572.8 0.0 31.8 NO CBIN11372 A4 CI10593 Curb Inlet 570.3 578.4 8.1 571.9 20.7 29.5 NO 572.6 36.0 46.3 NO 578.4 56.3 66.7 NO 578.4 65.6 74.0 NO CBIN11373 A4 CI10594 Curb Inlet 573.1 580.4 7.3 573.8 0.0 9.3 NO 573.9 0.0 11.5 NO 575.9 0.0 15.2 NO 580.4 0.0 17.6 NO INLT10613 A4 ZINL12991 Inlet 574.2 579.8 5.6 575.4 2.1 9.3 NO 575.6 3.3 11.6 NO 576.5 4.7 15.1 NO 577.3 5.3 17.1 NO OTHR10979 A4 ZOUT10316 Other 550.8 554.8 4.0 553.5 0.0 282.3 NO 553.9 0.0 391.2 NO 554.3 0.0 499.7 NO 554.5 0.0 539.5 NO OTHR10980 A4 ZINL12872 Other 551.7 555.7 4.0 559.3 0.0 282.3 YES 562.9 0.0 391.3 YES 567.2 0.0 499.7 YES 568.9 0.0 539.5 YES CBIN11374 A4 CI0666 Curb Inlet 535.8 540.6 4.8 540.7 5.4 284.4 NO 541.6 9.4 395.1 YES 542.6 14.3 503.1 YES 543.0 16.4 542.2 YES CBIN11375 A4 CI0667 Curb Inlet 536.5 540.5 4.0 542.2 0.0 284.0 YES 544.4 0.0 394.4 YES 547.2 0.0 502.5 YES 548.3 0.0 541.5 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 87 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10614 A4 ZINL10887 Inlet 536.6 540.6 4.0 542.6 4.8 284.0 YES 545.2 8.0 394.4 YES 548.4 12.0 502.5 YES 549.7 13.7 541.5 YES OTHR10981 A4 ZOTHER10815Other 553.6 560.8 7.3 553.6 0.0 0.0 NO 553.6 0.0 0.0 NO 553.6 0.0 0.0 NO 553.6 0.0 0.0 NO CLEN11050 A4 ZCO12237 Cleanout 521.3 531.0 9.6 522.7 0.0 12.2 NO 531.0 0.0 30.9 NO 531.0 0.0 44.5 NO 531.0 0.0 44.3 NO CLEN11051 A4 ZCO10059 Cleanout 520.9 530.0 9.2 522.5 0.0 12.1 NO 529.2 0.0 30.4 NO 530.1 0.0 45.6 NO 530.2 0.0 44.3 NO INLT10615 A4 INL064 Inlet 525.6 534.9 9.3 526.3 2.2 12.2 NO 526.7 4.2 29.7 NO 529.6 6.4 45.1 NO 530.4 7.3 46.0 NO OTHR10982 A4 ZOTHER10816Other 520.7 526.7 6.0 520.7 0.0 0.0 NO 520.7 0.0 0.0 NO 520.7 0.0 0.0 NO 520.7 0.0 0.0 NO CBIN11376 A4 CI0468 Curb Inlet 524.0 531.4 7.4 524.0 0.0 0.0 NO 524.0 0.0 0.0 NO 524.0 0.0 0.0 NO 524.0 0.0 0.0 NO CBIN11377 A4 CI0465 Curb Inlet 526.0 532.2 6.2 526.0 0.0 0.0 NO 526.0 0.0 0.0 NO 526.0 0.0 0.0 NO 526.0 0.0 0.0 NO CBIN11378 A4 CI0984 Curb Inlet 599.7 605.6 5.9 601.0 12.8 12.8 NO 604.6 23.5 23.5 NO 612.3 35.7 35.7 YES 616.0 40.8 40.8 YES CLEN11052 A4 ZCO11815 Cleanout 598.9 604.5 5.6 600.7 4.5 17.3 NO 604.0 8.7 32.1 NO 611.3 13.7 44.3 YES 614.9 15.8 50.5 YES INLT10616 A4 ZINL11816 Inlet 590.0 594.0 4.0 590.6 0.0 35.5 NO 590.7 0.0 61.5 NO 590.8 0.0 76.7 NO 590.8 0.0 83.1 NO CBIN11379 A4 CI0986 Curb Inlet 598.0 604.0 6.0 598.5 1.7 1.7 NO 604.0 2.8 2.8 NO 606.5 4.1 4.9 YES 609.1 4.7 4.8 YES CBIN11380 A4 CI0949 Curb Inlet 561.8 572.1 10.3 563.7 0.0 2.6 NO 572.1 0.0 5.9 NO 572.1 0.0 5.8 NO 570.1 0.0 5.1 NO CBIN11381 A4 CI0950 Curb Inlet 562.0 572.2 10.2 563.8 0.0 1.3 NO 572.2 0.0 4.4 NO 572.2 0.0 3.7 NO 570.9 0.0 3.8 NO CLEN11053 A4 ZCO12993 Cleanout 560.7 565.7 5.0 561.3 0.0 4.4 NO 561.5 0.0 7.2 NO 566.1 0.0 10.5 NO 566.9 0.0 10.8 YES CBIN11382 A4 CI1133 Curb Inlet 561.9 567.1 5.2 562.6 4.4 4.4 NO 562.9 7.2 7.2 NO 567.3 10.8 10.8 NO 568.1 12.3 12.3 NO CLEN11054 A4 ZCO10065 Cleanout 557.4 565.8 8.4 558.3 0.0 4.3 NO 558.7 0.0 7.0 NO 565.8 0.0 11.3 NO 565.8 0.0 11.0 NO INLT10617 A4 ZINL12803 Inlet 566.6 571.4 4.8 567.6 0.0 29.2 NO 567.8 0.0 45.6 NO 568.1 0.0 66.6 NO 568.2 0.0 73.0 NO OTHR10983 A4 ZOTHER10826Other 563.9 583.8 19.9 564.8 0.0 29.2 NO 565.5 0.0 45.5 NO 567.1 0.0 67.0 NO 567.4 0.0 73.2 NO CLEN11055 A4 ZCO12243 Cleanout 567.1 571.6 4.4 567.1 0.0 0.0 NO 567.1 0.0 0.0 NO 567.1 0.0 0.0 NO 567.1 0.0 0.0 NO CLEN11056 A4 ZCO10897 Cleanout 566.6 571.2 4.7 566.6 0.0 0.0 NO 566.6 0.0 0.0 NO 566.6 0.0 0.1 NO 566.7 0.0 1.3 NO CLEN11057 A4 ZCO10898 Cleanout 569.3 573.3 4.0 569.3 0.0 0.0 NO 569.3 0.0 0.0 NO 569.3 0.0 0.0 NO 569.3 0.0 0.0 NO CBIN11383 A4 CI0775 Curb Inlet 531.8 537.9 6.1 531.8 0.0 0.0 NO 531.8 0.0 0.0 NO 531.8 0.0 0.0 NO 531.8 0.0 0.0 NO OTHR10984 A4 ZOTHER10827Other 525.0 535.2 10.2 527.0 16.0 83.9 NO 527.6 26.8 132.7 NO 528.2 40.7 168.8 NO 528.3 46.4 179.0 NO CLEN11058 A4 ZCO10899 Cleanout 596.7 607.2 10.5 597.4 0.0 10.4 NO 597.6 0.0 16.8 NO 597.9 0.0 24.6 NO 598.0 0.0 27.6 NO CLEN11059 A4 ZCO10900 Cleanout 601.4 612.1 10.8 602.2 6.0 10.4 NO 602.4 9.5 16.9 NO 602.7 13.9 24.7 NO 602.8 15.7 27.8 NO CLEN11060 A4 ZCO11817 Cleanout 606.8 617.1 10.3 607.4 0.0 5.1 NO 607.5 0.0 8.2 NO 607.7 0.0 11.9 NO 607.7 0.0 13.2 NO CLEN11061 A4 ZCO11818 Cleanout 615.7 623.3 7.7 616.1 0.0 5.1 NO 616.3 0.0 8.2 NO 616.4 0.0 11.9 NO 616.4 0.0 13.2 NO CLEN11062 A4 ZCO11819 Cleanout 627.0 633.8 6.8 627.5 0.0 5.1 NO 627.6 0.0 8.2 NO 627.8 0.0 11.9 NO 627.8 0.0 13.3 NO CLEN11063 A4 ZCO12244 Cleanout 629.8 635.3 5.5 630.5 5.3 5.3 NO 630.7 8.5 8.5 NO 631.0 12.4 12.4 NO 631.2 14.0 14.0 NO CBIN11384 A4 CI1195 Curb Inlet 631.4 636.9 5.5 631.4 0.0 0.0 NO 631.4 0.0 0.0 NO 631.4 0.0 0.0 NO 631.4 0.0 0.0 NO INLT10618 A4 ZINL12245 Inlet 649.6 654.8 5.3 649.6 0.0 0.0 NO 649.6 0.0 0.0 NO 649.6 0.0 0.0 NO 649.6 0.0 0.0 NO CLEN11064 A4 ZCO10901 Cleanout 632.6 638.3 5.7 632.6 0.0 0.0 NO 632.6 0.0 0.0 NO 632.6 0.0 0.0 NO 632.6 0.0 0.0 NO CLEN11065 A4 ZCO10902 Cleanout 617.1 625.9 8.8 617.5 0.9 2.3 NO 617.6 1.5 3.7 NO 617.8 2.2 5.4 NO 625.9 2.4 8.8 NO CBIN11385 A4 CI1192 Curb Inlet 624.1 632.4 8.3 624.4 1.5 1.5 NO 624.5 2.4 2.4 NO 624.6 3.5 3.5 NO 624.7 3.9 3.9 NO OTHR10985 A4 ZOTHER10828Other 560.6 565.5 4.9 561.5 10.5 10.5 NO 561.9 17.0 17.0 NO 567.3 25.3 29.9 YES 569.4 28.7 32.6 YES CBIN11386 A4 CI0755 Curb Inlet 561.3 565.3 4.0 561.5 0.0 0.0 NO 561.9 0.0 0.2 NO 567.3 0.0 5.7 YES 569.4 0.0 8.8 YES CLEN11066 A4 ZCO12246 Cleanout 615.3 622.3 7.0 615.3 0.0 0.0 NO 615.3 0.0 0.0 NO 615.4 0.0 1.0 NO 622.4 0.0 8.5 NO CLEN11067 A4 ZCO13063 Cleanout 606.7 614.2 7.5 608.0 1.1 43.4 NO 608.4 1.7 68.1 NO 614.2 2.4 85.6 NO 614.2 2.7 87.7 NO CLEN11068 A4 ZCO13064 Cleanout 600.3 612.3 12.0 602.6 8.3 50.8 NO 603.4 13.5 80.0 NO 605.1 20.0 105.8 NO 605.3 22.7 109.1 NO CLEN11069 A4 ZCO10072 Cleanout 625.4 630.6 5.2 625.4 0.0 0.0 NO 625.6 0.0 0.4 NO 626.1 0.0 0.9 NO 626.4 0.0 1.9 NO CLEN11070 A4 ZCO10903 Cleanout 622.9 635.0 12.1 623.7 0.0 7.9 NO 624.0 0.0 12.4 NO 624.2 0.0 18.0 NO 624.3 0.0 19.4 NO CLEN11071 A4 ZCO10904 Cleanout 620.5 632.7 12.2 621.3 0.0 15.3 NO 621.5 0.0 24.3 NO 621.7 0.0 35.1 NO 622.5 0.0 39.2 NO CLEN11072 A4 ZCO10905 Cleanout 624.2 632.9 8.7 625.2 8.2 8.2 NO 625.5 13.2 13.2 NO 626.0 19.8 19.8 NO 626.3 22.5 22.5 NO CBIN11387 A4 CI0489 Curb Inlet 625.4 632.7 7.3 625.8 3.9 8.0 NO 625.9 6.0 12.5 NO 626.0 8.7 18.2 NO 626.1 9.8 20.6 NO CBIN11388 A4 CI0490 Curb Inlet 632.0 636.0 4.0 632.0 0.0 0.0 NO 632.0 0.0 0.0 NO 632.0 0.0 0.0 NO 632.0 0.0 0.0 NO INLT10619 A4 ZINL11580 Inlet 625.9 630.2 4.3 625.9 0.0 0.0 NO 625.9 0.0 0.0 NO 626.1 0.0 0.1 NO 626.4 0.0 0.3 NO CLEN11073 A4 ZCO10909 Cleanout 435.9 452.2 16.3 436.8 0.0 48.4 NO 437.1 0.0 85.5 NO 437.4 0.0 130.0 NO 437.6 0.0 149.1 NO CBIN11389 A4 CI1575 Curb Inlet 449.3 456.3 7.0 450.3 10.6 48.4 NO 450.7 17.8 85.6 NO 451.2 26.8 130.1 NO 451.4 30.5 149.2 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 88 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11390 A4 CI1577 Curb Inlet 482.9 490.8 7.9 483.2 0.0 2.3 NO 483.2 0.0 3.8 NO 483.3 0.0 5.7 NO 483.3 0.0 6.4 NO INLT10620 A4 ZINL11418 Inlet 485.8 489.8 4.0 486.1 2.3 2.3 NO 486.1 3.8 3.8 NO 486.2 5.7 5.7 NO 486.2 6.4 6.4 NO CLEN11074 A4 ZCO10910 Cleanout 461.2 465.2 4.0 461.6 0.0 2.3 NO 461.7 0.0 3.8 NO 461.8 0.0 5.7 NO 461.9 0.0 6.4 NO INLT10621 A4 ZINL10911 Inlet 460.2 466.5 6.3 460.6 0.0 2.3 NO 460.8 0.0 3.8 NO 460.9 0.0 5.7 NO 460.9 0.0 6.4 NO OTHR10986 A4 ZOTHER10834Other 466.3 472.8 6.4 466.5 0.0 2.3 NO 466.6 0.0 3.8 NO 466.7 0.0 5.7 NO 466.7 0.0 6.4 NO CLEN11075 A4 ZCO10917 Cleanout 594.7 609.3 14.5 595.9 3.7 47.2 NO 596.2 5.8 76.3 NO 596.5 8.4 112.9 NO 596.7 9.4 126.9 NO CBIN11391 A4 CI0461 Curb Inlet 580.4 591.9 11.5 582.4 2.1 50.6 NO 583.2 3.3 81.5 NO 584.1 4.8 120.6 NO 584.6 5.4 135.5 NO CBIN11392 A4 CI10629 Curb Inlet 584.1 590.9 6.7 584.1 0.0 0.0 NO 584.1 0.0 0.0 NO 584.1 0.0 0.0 NO 584.7 0.0 0.5 NO INLT10622 A4 ZINL13067 Inlet 602.3 608.1 5.8 602.3 0.0 0.0 NO 602.3 0.0 0.0 NO 602.3 0.0 0.0 NO 602.3 0.0 0.0 NO OTHR10987 A4 ZOTHER10838Other 589.0 602.1 13.1 590.1 1.9 48.9 NO 590.5 2.9 78.9 NO 590.8 4.2 116.7 NO 591.0 4.7 131.2 NO OTHR10988 A4 ZOTHER10839Other 611.3 619.5 8.2 611.3 0.0 0.0 NO 611.3 0.0 0.0 NO 611.3 0.0 0.0 NO 611.3 0.0 0.0 NO CLEN11076 A4 ZCO10078 Cleanout 596.5 603.7 7.3 598.3 6.7 44.2 NO 598.9 10.6 71.5 NO 599.7 15.5 106.0 NO 600.1 17.4 119.1 NO INLT10623 A4 INL057 Inlet 599.9 604.5 4.6 601.5 13.3 30.9 NO 602.0 21.7 49.9 NO 602.5 32.6 74.1 NO 602.7 37.1 83.7 NO CBIN11393 A4 CI1047 Curb Inlet 598.7 607.7 9.0 600.2 6.9 37.8 NO 600.7 11.2 61.1 NO 601.3 16.6 90.9 NO 601.6 18.8 102.5 NO CBIN11394 A4 CI1044 Curb Inlet 599.5 607.8 8.3 600.9 0.0 30.9 NO 601.3 0.0 49.9 NO 601.8 0.0 74.3 NO 602.1 0.0 83.8 NO INLT10624 A4 ZINL10079 Inlet 944.0 948.0 4.0 944.8 15.4 15.4 NO 945.3 33.0 33.0 NO 945.7 52.2 52.2 NO 945.9 60.4 60.4 NO INLT10625 A4 ZINL12876 Inlet 943.3 947.3 4.0 943.9 1.2 16.6 NO 944.1 3.0 35.9 NO 944.2 4.9 57.0 NO 944.2 5.8 66.1 NO OTHR10989 A4 ZOTHER10840Other 978.4 982.4 4.0 978.6 1.9 1.9 NO 978.7 3.3 3.3 NO 978.7 5.0 5.0 NO 978.7 5.6 5.6 NO INLT10626 A4 ZINL11420 Inlet 1016.9 1020.9 4.0 1016.9 0.0 0.0 NO 1016.9 0.0 0.0 NO 1016.9 0.0 0.0 NO 1016.9 0.0 0.0 NO CLEN11077 A4 ZCO10922 Cleanout 457.2 470.9 13.7 457.5 0.0 3.9 NO 457.6 0.0 6.2 NO 457.7 0.0 9.1 NO 457.8 0.0 10.2 NO CBIN11395 A4 CI1068 Curb Inlet 459.4 470.6 11.2 460.0 3.0 3.9 NO 460.1 4.8 6.2 NO 460.3 7.0 9.1 NO 460.4 7.9 10.2 NO CBIN11396 A4 CI1061 Curb Inlet 460.6 469.8 9.2 460.8 0.9 0.9 NO 460.9 1.4 1.4 NO 461.0 2.1 2.1 NO 461.0 2.3 2.3 NO INLT10627 A4 INL133 Inlet 467.2 471.6 4.5 467.2 0.0 0.0 NO 467.2 0.0 0.0 NO 467.2 0.0 0.0 NO 467.2 0.0 0.0 NO CBIN11397 A4 CI1074 Curb Inlet 489.2 495.2 6.0 489.2 0.0 0.0 NO 489.2 0.0 0.0 NO 489.2 0.0 0.0 NO 489.2 0.0 0.0 NO CBIN11398 A4 CI1069 Curb Inlet 490.1 496.1 6.0 490.1 0.0 0.0 NO 490.1 0.0 0.0 NO 490.1 0.0 0.0 NO 490.1 0.0 0.0 NO CLEN11078 A4 ZCO12254 Cleanout 484.3 494.7 10.4 486.0 4.2 21.3 NO 487.1 11.3 42.0 NO 488.0 19.2 66.9 NO 488.4 22.5 77.5 NO CLEN11079 A4 ZCO10085 Cleanout 490.8 499.1 8.3 492.3 6.0 16.8 NO 493.0 10.0 32.1 NO 493.8 14.8 50.7 NO 494.0 16.8 58.5 NO OTLT10168 A4 OUT10318 Outlet 479.6 485.0 5.4 481.2 0.0 21.3 NO 481.5 0.0 41.8 NO 481.8 0.0 67.4 NO 482.0 0.0 76.9 NO INLT10628 A4 INL13122 Inlet 492.7 496.7 4.0 492.7 0.0 0.0 NO 493.1 0.0 1.0 NO 493.9 0.0 3.5 NO 494.1 0.0 3.6 NO CLEN11080 A4 ZCO10924 Cleanout 504.3 517.2 12.8 505.0 9.3 11.4 NO 505.3 19.4 23.1 NO 505.5 30.7 36.3 NO 505.6 35.5 41.8 NO CBIN11399 A4 CI1055 Curb Inlet 506.6 515.8 9.3 506.6 0.0 0.0 NO 506.6 0.0 0.0 NO 506.6 0.0 0.0 NO 506.6 0.0 0.0 NO CBIN11400 A4 CI1054 Curb Inlet 516.7 520.7 4.0 516.7 0.0 0.0 NO 516.7 0.0 0.0 NO 516.7 0.0 0.0 NO 516.7 0.0 0.0 NO INLT10629 A4 INL016 Inlet 511.0 516.8 5.8 511.0 0.0 0.0 NO 511.0 0.0 0.0 NO 511.0 0.0 0.0 NO 511.0 0.0 0.0 NO CLEN11081 A4 ZCO10925 Cleanout 508.7 517.0 8.3 509.0 0.0 2.2 NO 509.1 0.0 3.8 NO 509.2 0.0 5.7 NO 509.2 0.0 6.5 NO CBIN11401 A4 CI1057 Curb Inlet 510.8 514.8 4.0 511.0 0.9 0.9 NO 511.1 1.7 1.7 NO 511.2 2.6 2.6 NO 511.2 3.0 3.0 NO INLT10630 A4 ZINL13214 Inlet 510.0 514.9 4.8 510.4 1.4 1.4 NO 510.5 2.1 2.1 NO 510.6 3.1 3.1 NO 510.6 3.5 3.5 NO CBIN11402 A4 CI1058 Curb Inlet 502.6 506.6 4.0 502.6 0.0 0.0 NO 502.6 0.0 0.0 NO 502.6 0.0 0.0 NO 502.6 0.0 0.0 NO OTLT10169 A4 OUT101 Outlet 496.8 500.8 4.0 496.8 0.0 0.0 NO 496.8 0.0 0.0 NO 496.8 0.0 0.0 NO 496.8 0.0 0.0 NO INLT10631 A4 ZINL12255 Inlet 551.4 557.1 5.7 551.4 0.0 0.0 NO 551.4 0.0 0.0 NO 551.4 0.0 0.0 NO 551.4 0.0 0.0 NO INLT10632 A4 ZINL12256 Inlet 552.1 558.3 6.2 552.1 0.0 0.0 NO 552.1 0.0 0.0 NO 552.1 0.0 0.0 NO 552.1 0.0 0.0 NO INLT10633 A4 ZINL11183 Inlet 553.1 558.3 5.2 553.1 0.0 0.0 NO 553.1 0.0 0.0 NO 553.1 0.0 0.0 NO 553.1 0.0 0.0 NO CLEN11082 A4 ZCO10092 Cleanout 626.3 638.2 11.9 626.7 0.0 4.3 NO 626.8 0.0 6.7 NO 626.9 0.0 9.8 NO 627.0 0.0 11.1 NO INLT10634 A4 ZINL10093 Inlet 632.8 641.4 8.7 633.3 2.3 4.3 NO 633.4 3.6 6.8 NO 633.5 5.2 9.9 NO 633.6 5.8 11.2 NO CBIN11403 A4 CI10634 Curb Inlet 639.7 643.7 4.0 640.1 2.2 2.2 NO 640.2 3.4 3.4 NO 640.3 4.9 4.9 NO 640.4 5.6 5.6 NO INLT10635 A4 ZINL10926 Inlet 630.8 635.7 4.9 630.8 0.0 0.0 NO 630.8 0.0 0.0 NO 630.8 0.0 0.0 NO 630.8 0.0 0.0 NO CBIN11404 A4 ZCI10642 Curb Inlet 497.8 503.8 6.0 498.9 5.7 5.7 NO 499.4 10.1 10.1 NO 503.8 15.5 15.5 NO 503.8 17.7 17.7 NO INLT10636 A4 ZINL10095 Inlet 18.4 524.7 506.3 18.4 0.0 0.0 NO 18.4 0.0 0.0 NO 18.4 0.0 0.0 NO 18.4 0.0 0.0 NO INLT10637 A4 ZINL12881 Inlet 17.7 520.7 503.0 17.7 0.0 0.0 NO 17.7 0.0 0.0 NO 17.7 0.0 0.0 NO 17.7 0.0 0.0 NO CBIN11405 A4 ZCI10646 Curb Inlet 575.2 584.8 9.6 577.0 29.8 52.3 NO 577.9 52.6 95.4 NO 585.1 85.7 195.9 NO 585.0 99.3 215.2 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 89 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10638 A4 ZINL10930 Inlet 578.4 584.9 6.5 580.9 22.8 22.8 NO 583.1 42.7 42.7 NO 586.3 66.8 66.8 YES 586.3 76.7 76.7 YES OTLT10170 A4 ZOUT10339 Outlet 585.1 589.1 4.0 587.1 3.0 9.0 NO 587.5 5.1 11.3 NO 588.0 7.8 13.8 NO 588.3 8.9 14.9 NO INLT10639 A4 ZINL11186 Inlet 584.7 588.7 4.0 587.1 0.0 7.8 NO 587.5 0.0 8.7 NO 588.0 0.0 9.8 NO 588.3 0.0 10.2 NO OTLT10171 A4 ZOUT10338 Outlet 584.2 588.2 4.0 585.9 1.3 8.3 NO 586.3 2.1 9.6 NO 586.7 3.1 11.2 NO 586.9 3.5 11.8 NO INLT10640 A4 ZINL11188 Inlet 585.8 589.8 4.0 588.6 0.0 7.4 NO 589.2 0.0 8.0 NO 589.9 0.0 8.1 NO 590.2 0.0 8.2 NO OTLT10172 A4 ZOUT10340 Outlet 587.3 591.3 4.0 588.7 1.5 8.1 NO 589.3 2.4 9.7 NO 589.9 3.5 11.3 NO 590.2 4.0 11.9 NO INLT10641 A4 ZINL10936 Inlet 587.8 591.8 4.0 589.8 0.0 7.4 NO 590.4 0.0 7.9 NO 591.2 0.0 8.7 NO 591.5 0.0 9.1 NO OTLT10173 A4 ZOUT10341 Outlet 588.2 592.2 4.0 589.8 1.9 7.7 NO 590.4 3.3 9.2 NO 591.2 4.9 10.8 NO 591.5 5.6 11.5 NO INLT10642 A4 ZINL10938 Inlet 588.6 592.6 4.0 590.8 0.0 7.1 NO 591.5 0.0 7.9 NO 592.4 0.0 8.7 NO 592.9 0.0 9.2 NO OTLT10174 A4 ZOUT10342 Outlet 589.3 593.3 4.0 590.8 0.0 8.1 NO 591.5 0.0 9.8 NO 592.4 0.0 11.8 NO 592.9 0.0 12.7 NO INLT10643 A4 ZINL12883 Inlet 589.8 593.8 4.0 592.1 18.9 18.9 NO 593.2 31.1 31.1 NO 594.8 47.0 47.0 NO 595.5 53.7 53.7 YES OTLT10175 A4 ZOUT10336 Outlet 580.4 584.4 4.0 581.3 0.0 7.9 NO 581.4 0.0 9.0 NO 581.6 0.0 16.8 NO 581.6 0.0 16.8 NO INLT10644 A4 ZINL11428 Inlet 580.8 584.8 4.0 582.4 0.0 8.0 NO 582.7 0.0 9.3 NO 583.0 0.0 15.7 NO 583.0 0.0 16.4 NO OTLT10176 A4 ZOUT10378 Outlet 581.2 585.2 4.0 582.5 2.5 8.2 NO 582.8 4.0 10.1 NO 583.0 5.9 12.1 NO 583.0 6.6 12.9 NO INLT10645 A4 ZINL10940 Inlet 581.9 585.9 4.0 584.2 0.0 7.3 NO 584.5 0.0 7.7 NO 584.7 0.0 8.1 NO 584.8 0.0 8.2 NO OTLT10177 A4 ZOUT10337 Outlet 582.9 586.9 4.0 584.2 0.0 7.5 NO 584.5 0.0 7.8 NO 584.7 0.0 8.2 NO 584.8 0.0 8.3 NO INLT10646 A4 ZINL11189 Inlet 583.6 587.6 4.0 585.9 0.0 7.8 NO 586.3 0.0 8.5 NO 586.7 0.0 9.0 NO 586.9 0.0 9.2 NO CBIN11406 A4 CI1275 Curb Inlet 594.6 601.1 6.5 595.9 0.0 9.5 NO 596.7 0.0 14.7 NO 597.2 0.0 21.7 NO 597.4 0.0 25.2 NO INLT10647 A4 ZINL11184 Inlet 587.3 595.2 7.9 588.2 1.1 10.7 NO 588.5 1.7 17.1 NO 588.8 2.5 25.3 NO 588.9 2.8 28.7 NO INLT10648 A4 ZINL11185 Inlet 588.3 594.6 6.3 589.1 0.0 9.6 NO 589.4 0.0 15.4 NO 589.7 0.0 22.9 NO 589.8 0.0 25.9 NO CBIN11407 A4 ZCI10649 Curb Inlet 589.1 595.3 6.2 589.9 7.5 9.6 NO 590.2 12.1 15.4 NO 590.5 17.9 22.8 NO 590.6 20.3 25.8 NO INLT10649 A4 ZINL11004 Inlet 594.2 599.9 5.7 594.6 0.0 2.5 NO 594.8 0.0 4.0 NO 594.9 0.0 5.8 NO 594.9 0.0 6.4 NO INLT10650 A4 ZINL10101 Inlet 595.1 601.9 6.8 595.6 2.6 2.6 NO 595.7 4.0 4.0 NO 595.9 5.8 5.8 NO 596.0 6.5 6.5 NO CLEN11083 A4 ZCO10945 Cleanout 585.9 595.7 9.8 586.5 2.9 13.4 NO 586.7 4.6 21.4 NO 586.9 6.7 31.5 NO 586.9 7.6 35.6 NO CLEN11084 A4 ZCO12933 Cleanout 569.8 581.7 11.8 581.7 15.5 19.1 NO 581.7 25.7 42.7 NO 582.8 38.8 46.7 YES 584.2 44.3 48.5 YES CLEN11085 A4 ZCO12261 Cleanout 566.3 580.3 14.0 580.4 0.0 22.8 NO 580.4 0.0 31.8 NO 581.0 0.0 38.4 NO 582.8 0.0 40.4 YES CLEN11086 A4 ZCO10946 Cleanout 565.6 578.9 13.3 578.9 0.0 26.7 NO 579.0 0.0 36.3 NO 580.6 0.0 42.3 YES 582.4 0.0 43.6 YES CLEN11087 A4 ZCO10947 Cleanout 564.2 576.9 12.8 577.0 0.0 24.4 NO 577.1 0.0 33.3 NO 580.0 0.0 38.1 YES 581.9 0.0 39.3 YES CLEN11088 A4 ZCO10948 Cleanout 562.7 572.2 9.5 572.4 3.1 29.4 NO 574.7 4.9 31.7 YES 579.1 7.1 39.4 YES 581.1 8.1 39.6 YES INLT10651 A4 ZINL10102 Inlet 564.7 572.1 7.3 572.5 0.0 9.3 NO 574.7 0.0 9.1 YES 579.1 0.0 10.4 YES 581.1 0.0 10.5 YES CLEN11089 A4 ZCO10103 Cleanout 562.5 571.2 8.7 571.4 11.7 48.3 NO 574.5 18.7 58.7 YES 578.9 27.5 62.5 YES 580.9 31.0 63.5 YES CBIN11408 A4 CI10837 Curb Inlet 573.1 581.9 8.8 573.3 0.0 2.7 NO 581.9 0.0 13.9 NO 582.7 0.0 14.8 NO 584.3 0.0 14.8 YES CBIN11409 A4 CI10653 Curb Inlet 571.2 581.7 10.5 572.8 0.0 5.2 NO 581.8 0.0 16.0 NO 582.8 0.0 19.2 YES 584.2 0.0 19.1 YES INLT10652 A4 ZINL10951 Inlet 558.2 565.1 6.8 558.7 2.0 2.0 NO 558.9 3.2 3.2 NO 565.1 4.8 5.9 NO 565.1 5.4 8.3 NO INLT10653 A4 ZINL11436 Inlet 558.3 563.4 5.1 559.1 3.7 3.7 NO 563.5 5.8 5.8 NO 564.9 8.5 8.5 YES 566.8 9.6 9.6 YES INLT10654 A4 ZINL10104 Inlet 556.8 562.1 5.3 558.2 1.9 5.4 NO 562.1 3.1 9.5 NO 564.1 4.5 11.4 YES 565.9 5.1 11.5 YES OTLT10178 A4 ZOTHER11250Outlet 349.7 358.4 8.7 349.7 0.0 40.1 NO 349.7 0.0 70.5 NO 349.7 0.0 105.9 NO 349.7 0.0 121.6 NO OTHR10990 A4 ZOTHER11252Other 859.2 866.9 7.7 860.3 0.0 27.9 NO 860.7 0.0 50.1 NO 861.0 0.0 75.0 NO 861.0 0.0 80.8 NO INLT10655 A4 INL077 Inlet 450.3 455.0 4.8 451.7 42.3 42.3 NO 454.3 76.2 76.2 NO 455.0 117.4 117.4 NO 455.0 134.4 134.4 NO OTHR10991 A4 ZOTHER11277Other 590.4 594.4 4.0 592.1 0.0 2.3 NO 593.2 0.0 5.6 NO 594.8 0.0 8.9 NO 595.5 0.0 10.4 YES INLT10656 A4 INL11441 Inlet 355.3 359.3 4.0 355.3 0.0 0.0 NO 355.3 0.0 0.0 NO 355.3 0.0 0.0 NO 355.3 0.0 0.0 NO CLEN11090 A4 CO005 Cleanout 724.1 738.6 14.5 725.1 5.2 26.3 NO 725.4 8.5 42.2 NO 725.8 12.5 61.5 NO 725.9 14.1 69.7 NO CLEN11091 A4 CO004 Cleanout 717.5 735.9 18.3 718.3 0.0 27.8 NO 718.6 0.0 44.5 NO 718.8 0.0 65.0 NO 718.9 0.0 73.4 NO OTHR10992 A4 ZOTHER11361Other 746.7 763.7 17.0 748.1 0.0 173.8 NO 748.6 0.0 337.3 NO 749.7 0.0 540.6 NO 750.7 0.0 599.5 NO OTHR10993 A4 ZOTHER11362Other 767.0 774.1 7.2 767.1 0.0 2.7 NO 767.2 0.0 4.4 NO 767.2 0.0 6.5 NO 767.2 0.0 7.4 NO CBIN11410 A4 CI1137 Curb Inlet 623.5 627.5 4.0 623.5 0.0 0.0 NO 623.5 0.0 0.0 NO 623.5 0.0 0.0 NO 623.5 0.0 0.0 NO OTHR10994 A4 ZOTHER11367Other 526.6 532.0 5.4 529.4 6.3 69.5 NO 530.4 10.6 101.9 NO 532.0 16.2 128.9 NO 532.1 18.6 136.3 NO INLT10657 A4 INL053 Inlet 605.0 612.2 7.3 612.2 150.7 150.7 NO 621.2 241.9 241.9 YES 638.2 352.2 352.2 YES 646.3 402.3 402.3 YES CBIN11411 A4 CI1110 Curb Inlet 604.2 621.0 16.8 621.0 2.2 151.3 NO 620.5 3.5 242.6 NO 635.5 5.1 349.9 YES 642.8 5.8 399.8 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 90 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN11092 A4 ZCO11828 Cleanout 779.0 800.8 21.8 779.0 0.0 0.0 NO 779.0 0.0 0.0 NO 779.0 0.0 0.0 NO 779.0 0.0 0.0 NO INLT10658 A4 ZINL11829 Inlet 806.0 813.8 7.8 806.0 0.0 0.0 NO 806.0 0.0 0.0 NO 806.0 0.0 0.0 NO 806.0 0.0 0.0 NO INLT10659 A4 ZINL10116 Inlet 766.5 782.4 15.9 766.9 3.8 3.8 NO 767.0 7.3 7.3 NO 767.2 11.4 11.4 NO 767.2 13.2 13.2 NO CLEN11093 A4 ZCO11878 Cleanout 542.5 549.8 7.3 543.4 1.1 17.8 NO 543.5 1.8 21.6 NO 545.6 2.6 26.8 NO 548.5 2.9 29.2 NO CLEN11094 A4 ZCO11879 Cleanout 535.0 543.1 8.0 536.3 1.1 18.4 NO 536.6 1.7 22.4 NO 543.1 2.5 30.9 NO 543.3 2.8 32.9 NO CBIN11412 A4 CI10660 Curb Inlet 544.4 550.7 6.3 546.2 0.0 28.9 NO 546.6 0.0 38.5 NO 547.8 0.0 48.6 NO 548.4 0.0 51.9 NO CLEN11095 A4 ZCO12270 Cleanout 550.3 562.9 12.6 551.7 1.6 46.2 NO 554.7 2.6 65.5 NO 563.0 3.7 113.2 NO 563.1 4.2 114.6 NO OTHR10995 A4 ZOTHER11389Other 547.4 553.6 6.2 549.1 0.0 55.5 NO 553.6 0.0 79.0 NO 553.7 0.0 107.2 NO 554.4 0.0 111.8 NO OTHR10996 A4 ZOTHER11390Other 548.1 554.1 6.0 550.0 11.2 11.2 NO 554.2 18.5 18.5 NO 557.5 27.9 27.9 YES 559.8 31.9 31.9 YES CLEN11096 A4 ZCO10119 Cleanout 541.6 551.3 9.7 543.5 0.0 29.5 NO 544.1 0.0 43.4 NO 544.8 0.0 61.2 NO 545.0 0.0 67.0 NO CLEN11097 A4 ZCO10120 Cleanout 543.7 551.9 8.2 545.5 1.7 25.7 NO 545.7 2.7 36.3 NO 551.9 4.1 50.9 NO 551.9 4.7 54.7 NO CLEN11098 A4 ZCO11830 Cleanout 545.9 551.0 5.1 546.2 3.1 5.6 NO 546.3 5.0 9.1 NO 546.4 7.6 13.7 NO 546.5 8.6 15.6 NO OTHR10997 A4 ZOTHER11391Other 543.3 551.6 8.3 544.2 0.0 26.9 NO 544.6 0.0 38.1 NO 548.6 0.0 51.0 NO 551.6 0.0 54.7 NO CLEN11099 A4 ZCO11831 Cleanout 545.3 550.1 4.8 546.9 0.0 53.4 NO 547.2 0.0 78.7 NO 548.0 0.0 102.6 NO 548.6 0.0 103.1 NO CBIN11413 A4 CI1145 Curb Inlet 529.0 535.0 6.0 529.0 0.0 0.0 NO 535.0 0.0 9.3 NO 536.5 0.0 10.9 YES 538.0 0.0 11.2 YES CLEN11100 A4 ZCO10121 Cleanout 526.0 535.0 9.0 527.7 16.5 38.6 NO 535.0 27.2 69.5 NO 536.4 40.8 77.6 YES 537.9 46.5 82.6 YES CLEN11101 A4 ZCO10122 Cleanout 535.7 544.4 8.7 536.9 0.0 23.5 NO 544.4 0.0 38.8 NO 547.9 0.0 42.1 YES 549.3 0.0 42.2 YES CLEN11102 A4 ZCO10123 Cleanout 517.4 523.9 6.5 519.0 0.0 38.1 NO 519.9 0.0 61.8 NO 523.9 0.0 70.0 NO 523.9 0.0 71.6 NO OTHR10998 A4 ZOTHER11392Other 514.5 521.9 7.4 517.5 15.0 113.0 NO 518.0 25.4 192.5 NO 518.9 38.9 280.4 NO 519.4 44.7 320.1 NO OTLT10179 A4 OUT053 Outlet 514.3 518.3 4.0 517.4 0.0 150.9 NO 517.8 0.0 251.9 NO 518.1 0.0 351.1 NO 518.2 0.0 407.0 NO CLEN11103 A4 ZCO12176 Cleanout 595.8 606.2 10.5 596.7 0.0 9.4 NO 597.1 0.0 15.0 NO 597.6 0.0 22.2 NO 598.0 0.0 25.1 NO OTHR10999 A4 ZOTHER11393Other 603.0 618.4 15.4 618.5 24.8 198.3 NO 618.8 40.5 321.8 NO 631.8 60.9 433.4 YES 637.9 69.2 479.2 YES OTHR11000 A4 ZOTHER11394Other 593.9 601.3 7.4 595.9 7.0 272.1 NO 596.7 11.2 433.0 NO 597.2 16.4 563.8 NO 597.4 18.5 608.1 NO OTHR11001 A4 ZOTHER11395Other 600.1 612.5 12.5 602.0 0.0 261.9 NO 602.7 0.0 408.0 NO 603.3 0.0 538.3 NO 603.5 0.0 585.7 NO OTHR11002 A4 ZOTHER11396Other 592.1 599.1 7.1 594.1 0.0 271.7 NO 594.9 0.0 435.4 NO 595.4 0.0 564.0 NO 595.6 0.0 608.3 NO OTHR11003 A4 ZOTHER11397Other 590.7 597.6 6.9 592.7 0.0 273.0 NO 593.5 0.0 436.7 NO 594.0 0.0 564.1 NO 594.2 0.0 608.3 NO OTHR11004 A4 ZOTHER11398Other 583.3 592.6 9.3 584.7 0.0 280.1 NO 585.3 0.0 441.4 NO 585.7 0.0 566.4 NO 585.9 0.0 608.1 NO OTHR11005 A4 ZOTHER11399Other 586.5 594.7 8.3 588.0 0.0 275.5 NO 588.5 0.0 437.9 NO 588.8 0.0 564.0 NO 588.9 0.0 608.2 NO CBIN11414 A4 CI1277 Curb Inlet 602.3 615.4 13.1 613.7 0.0 11.7 NO 611.4 0.0 7.6 NO 615.5 0.0 23.7 NO 617.8 0.0 22.5 YES OTHR11006 A4 ZOTHER11400Other 601.7 614.8 13.1 614.8 6.7 211.1 NO 614.8 11.0 328.3 NO 615.3 16.5 441.4 NO 617.7 18.8 487.1 YES INLT10660 A4 ZINL10124 Inlet 603.3 615.7 12.4 606.1 0.0 9.4 NO 611.8 0.0 5.4 NO 615.8 0.0 22.9 NO 617.8 0.0 17.2 YES CLEN11104 A4 ZCO12177 Cleanout 766.3 777.5 11.2 767.0 4.6 29.0 NO 767.3 7.8 59.3 NO 767.6 11.6 92.4 NO 767.7 13.2 106.6 NO CLEN11105 A4 ZCO12178 Cleanout 754.6 772.5 17.9 755.4 3.1 35.2 NO 755.8 5.0 70.4 NO 759.0 7.3 113.4 NO 762.9 8.2 133.0 NO CLEN11106 A4 ZCO12179 Cleanout 757.9 772.8 14.8 757.9 0.0 0.0 NO 757.9 0.0 0.0 NO 759.1 0.0 2.8 NO 772.8 0.0 19.2 NO CBIN11415 A4 CI0531 Curb Inlet 762.4 773.7 11.3 762.4 0.0 0.0 NO 762.4 0.0 0.0 NO 762.4 0.0 0.0 NO 762.8 0.0 3.5 NO CBIN11416 A4 CI0530 Curb Inlet 766.2 774.0 7.8 766.2 0.0 0.0 NO 766.2 0.0 0.0 NO 766.2 0.0 0.0 NO 766.2 0.0 0.0 NO CLEN11107 A4 ZCO11446 Cleanout 773.5 786.9 13.4 774.3 0.0 24.9 NO 774.7 0.0 52.2 NO 775.1 0.0 81.8 NO 775.2 0.0 94.5 NO CLEN11108 A4 ZCO12271 Cleanout 782.9 798.1 15.3 783.9 1.0 25.0 NO 784.3 1.6 52.4 NO 784.8 2.4 81.9 NO 785.0 2.7 94.6 NO CLEN11109 A4 ZCO12272 Cleanout 796.7 804.0 7.3 796.8 0.0 1.1 NO 796.9 0.0 1.8 NO 796.9 0.0 2.6 NO 796.9 0.0 3.0 NO CLEN11110 A4 ZCO12273 Cleanout 791.4 805.6 14.2 792.3 0.0 23.0 NO 792.7 0.0 49.0 NO 793.2 0.0 77.1 NO 793.3 0.0 89.2 NO INLT10661 A4 ZINL12274 Inlet 812.7 816.7 4.0 812.8 1.1 1.1 NO 812.8 1.8 1.8 NO 812.9 2.6 2.6 NO 812.9 3.0 3.0 NO INLT10662 A4 ZINL12180 Inlet 794.0 798.0 4.0 794.7 9.4 9.4 NO 795.0 19.3 19.3 NO 795.4 30.2 30.2 NO 795.6 34.9 34.9 NO INLT10663 A4 ZINL12181 Inlet 795.2 799.2 4.0 795.9 15.5 15.5 NO 796.2 32.2 32.2 NO 796.4 49.9 49.9 NO 796.6 58.5 58.5 NO CBIN11417 A4 CI1381 Curb Inlet 570.1 575.8 5.7 570.1 0.0 0.0 NO 570.1 0.0 0.0 NO 570.1 0.0 0.0 NO 570.1 0.0 0.1 NO CBIN11418 A4 CI1379 Curb Inlet 563.6 571.4 7.8 564.0 3.0 3.0 NO 564.9 4.8 4.8 NO 567.3 7.1 7.1 NO 571.4 8.1 8.1 NO CLEN11111 A4 ZCO10125 Cleanout 561.6 572.2 10.6 563.8 0.0 4.6 NO 572.2 0.0 6.6 NO 572.2 0.0 7.4 NO 569.1 0.0 8.1 NO OTHR11007 A4 ZOTHER11402Other 559.2 574.6 15.4 563.5 1.5 314.6 NO 564.9 2.5 490.1 NO 567.3 3.7 766.6 NO 569.0 4.2 817.3 NO CLEN11112 A4 ZCO11834 Cleanout 633.2 641.7 8.5 633.2 0.0 0.0 NO 633.2 0.0 0.0 NO 633.2 0.0 0.0 NO 633.2 0.0 0.0 NO OTLT10180 A4 OUT10348 Outlet 352.0 356.0 4.0 352.2 0.0 200.2 NO 352.2 0.0 331.0 NO 352.6 0.0 443.8 NO 352.4 0.0 486.7 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 91 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10664 A4 INL059 Inlet 643.0 648.3 5.3 644.4 14.5 87.4 NO 645.0 31.5 178.3 NO 645.7 50.1 281.7 NO 645.9 58.1 327.0 NO OTLT10181 A4 OUT036 Outlet 643.7 648.8 5.1 643.7 0.0 0.0 NO 643.7 0.0 0.0 NO 643.7 0.0 0.0 NO 643.7 0.0 0.0 NO OTHR11008 A4 ZOTHER11428Other 382.8 391.0 8.2 383.2 0.0 2.6 NO 383.3 0.0 4.2 NO 383.4 0.0 6.1 NO 383.5 0.0 6.9 NO OTHR11009 A4 ZOTHER11439Other 558.6 562.6 4.0 563.9 0.0 593.7 YES 565.2 0.0 920.8 YES 566.9 0.0 1219.6 YES 567.3 0.0 1280.0 YES OTHR11010 A4 ZOTHER11440Other 559.3 563.3 4.0 564.3 0.0 602.6 NO 565.4 0.0 936.8 YES 567.0 0.0 1241.3 YES 567.4 0.0 1290.1 YES OTHR11011 A4 ZOTHER11560Other 550.4 554.4 4.0 552.7 6.6 283.1 NO 553.2 11.8 392.7 NO 553.6 18.0 501.1 NO 553.8 20.6 541.1 NO OTHR11012 A4 ZOTHER11561Other 542.7 546.7 4.0 544.7 4.7 284.5 NO 545.8 8.7 395.1 NO 548.5 13.4 503.0 YES 549.8 15.4 542.3 YES CLEN11113 A4 CO14029 Cleanout 567.1 575.0 7.9 575.0 8.7 30.1 NO 575.3 14.3 29.5 NO 579.7 21.4 33.0 YES 581.8 24.4 37.3 YES OTLT10182 A4 ZOTHER11597Outlet 548.4 552.4 4.0 548.4 0.0 3.6 NO 548.4 0.0 5.7 NO 548.4 0.0 8.3 NO 548.4 0.0 9.4 NO OTLT10183 A4 OUT10200 Outlet 519.7 524.6 5.0 519.7 7.5 16.7 NO 519.7 14.6 40.1 NO 519.7 23.6 58.6 NO 519.7 27.3 65.7 NO OTHR11013 A4 ZOTHER11746Other 443.7 450.6 6.9 444.2 0.0 8.3 NO 444.5 0.0 19.6 NO 444.8 0.0 31.7 NO 450.7 0.0 47.3 NO CBIN11419 A4 CI10838 Curb Inlet 574.5 581.1 6.6 574.5 0.0 0.0 NO 581.1 0.0 5.7 NO 582.7 0.0 7.0 YES 584.3 0.0 7.5 YES INLT10665 A4 INL13318 Inlet 569.6 573.9 4.3 574.4 1.4 8.2 NO 575.5 2.2 9.1 YES 579.7 3.2 4.6 YES 581.8 3.6 4.9 YES CLEN11114 A4 CO14026 Cleanout 569.1 574.1 5.0 574.4 0.0 17.0 NO 575.4 0.0 22.7 YES 579.7 0.0 14.4 YES 581.8 0.0 14.5 YES CLEN11115 A4 CO14027 Cleanout 568.6 574.5 6.0 574.6 0.0 15.4 NO 575.4 0.0 16.6 NO 579.7 0.0 10.7 YES 581.8 0.0 15.9 YES CLEN11116 A4 CO14028 Cleanout 567.4 574.4 7.0 574.5 0.0 28.4 NO 575.3 0.0 27.5 NO 579.7 0.0 19.4 YES 581.8 0.0 22.8 YES INLT10666 A4 INL13319 Inlet 569.4 575.1 5.7 575.2 4.8 10.6 NO 575.4 8.8 12.9 NO 579.8 13.5 13.5 YES 581.9 15.5 15.5 YES INLT10667 A4 INL13320 Inlet 568.5 574.3 5.8 574.4 0.0 15.4 NO 575.3 0.0 20.2 YES 579.7 0.0 13.1 YES 581.8 0.0 14.5 YES INLT10668 A4 INL13321 Inlet 569.1 574.9 5.8 574.9 0.0 1.0 NO 575.4 0.0 2.7 NO 579.7 0.0 2.5 YES 581.8 0.0 2.8 YES INLT10669 A4 INL13322 Inlet 569.7 574.7 5.0 574.9 0.0 9.1 NO 575.4 0.0 10.0 NO 579.7 0.0 4.9 YES 581.8 0.0 7.2 YES CLEN11117 A4 CO41181 Cleanout 766.2 781.1 15.0 767.9 0.0 109.2 NO 768.6 0.0 206.4 NO 769.3 0.0 318.1 NO 769.6 0.0 365.2 NO CLEN11118 A4 CO41182 Cleanout 770.5 784.6 14.1 772.3 52.5 104.1 NO 773.0 95.9 197.5 NO 773.7 146.2 304.4 NO 773.9 167.5 350.1 NO CLEN11119 A4 CO41183 Cleanout 775.7 787.2 11.6 776.8 0.0 60.1 NO 777.2 0.0 115.8 NO 777.6 0.0 178.1 NO 777.8 0.0 206.3 NO CLEN11120 A4 CO41184 Cleanout 784.1 795.3 11.2 785.4 0.0 60.1 NO 785.9 0.0 115.7 NO 786.4 0.0 178.1 NO 786.6 0.0 206.1 NO CLEN11121 A4 CO41185 Cleanout 785.9 796.7 10.8 786.5 0.0 12.7 NO 786.7 0.0 22.4 NO 787.0 0.0 33.9 NO 787.1 0.0 38.7 NO OTHR11014 A4 LUG41190 Other 766.3 781.3 15.0 767.9 0.0 1.6 NO 768.6 0.0 2.8 NO 769.4 0.0 4.2 NO 769.6 0.0 4.7 NO CBIN11420 A4 INL41186 Curb Inlet 767.8 780.6 12.8 768.0 0.0 1.5 NO 768.7 0.0 2.5 NO 769.4 0.0 4.0 NO 769.6 0.0 4.6 NO CBIN11421 A4 INL41187 Curb Inlet 772.8 782.6 9.8 773.0 0.0 1.5 NO 773.1 0.0 2.5 NO 773.2 0.0 3.7 NO 773.2 0.0 4.2 NO CBIN11422 A4 INL41189 Curb Inlet 779.5 785.8 6.3 779.5 0.0 0.0 NO 779.5 0.0 0.0 NO 779.5 0.0 0.0 NO 779.5 0.0 0.0 NO CBIN11423 A4 INL41188 Curb Inlet 779.0 783.0 4.0 779.0 0.0 0.0 NO 779.0 0.0 0.0 NO 779.0 0.0 0.0 NO 779.0 0.0 0.0 NO CBIN11424 A4 INL41191 Curb Inlet 774.5 780.3 5.8 774.5 0.0 0.0 NO 774.5 0.0 0.0 NO 774.5 0.0 0.0 NO 774.5 0.0 0.0 NO CLEN11122 A4 CO41193 Cleanout 782.2 794.6 12.5 782.2 0.0 0.0 NO 782.2 0.0 0.0 NO 782.2 0.0 0.0 NO 782.2 0.0 0.0 NO CLEN11123 A4 CO41195 Cleanout 781.8 788.1 6.3 781.8 0.0 0.0 NO 781.8 0.0 0.0 NO 781.8 0.0 0.0 NO 781.8 0.0 0.0 NO CLEN11124 A4 CO41196 Cleanout 783.1 788.8 5.7 783.1 0.0 0.0 NO 783.1 0.0 0.0 NO 783.1 0.0 0.0 NO 783.1 0.0 0.0 NO INLT10670 A4 INL41197 Inlet 793.4 797.4 4.0 793.4 0.0 0.0 NO 793.4 0.0 0.0 NO 793.4 0.0 0.0 NO 793.4 0.0 0.0 NO INLT10671 A4 INL41198 Inlet 792.3 796.4 4.1 792.8 12.7 12.7 NO 792.9 22.4 22.4 NO 793.1 33.9 33.9 NO 793.1 38.7 38.7 NO CLEN11125 A4 CO41199 Cleanout 790.5 799.5 9.0 791.6 0.0 52.9 NO 792.1 0.0 104.1 NO 792.5 0.0 162.2 NO 792.6 0.0 187.7 NO INLT10672 A4 INL41200 Inlet 792.3 796.3 4.0 793.3 52.8 52.8 NO 793.7 104.0 104.0 NO 794.1 162.1 162.1 NO 794.3 187.5 187.5 NO CBIN11425 A4 CI1281 Curb Inlet 710.8 731.8 21.1 712.5 4.9 32.1 NO 713.0 8.1 51.8 NO 713.5 12.1 76.1 NO 719.3 13.7 86.9 NO CBIN11426 A4 CI1526 Curb Inlet 716.0 732.1 16.0 716.8 0.0 27.8 NO 717.1 0.0 44.5 NO 717.3 0.0 65.0 NO 717.4 0.0 73.4 NO CBIN11427 A4 CI1279 Curb Inlet 717.5 724.9 7.4 717.9 2.3 2.3 NO 718.0 3.7 3.7 NO 718.1 5.3 5.3 NO 718.1 6.0 6.0 NO CBIN11428 A4 CI1525 Curb Inlet 718.8 725.2 6.4 718.8 0.0 0.0 NO 718.8 0.0 0.0 NO 718.8 0.0 0.0 NO 718.8 0.0 0.0 NO CBIN11429 A4 CI1524 Curb Inlet 709.2 716.5 7.3 709.2 0.0 0.0 NO 709.2 0.0 0.0 NO 709.2 0.0 0.0 NO 709.2 0.0 0.0 NO CBIN11430 A4 CI1278 Curb Inlet 707.8 715.7 7.8 708.2 1.3 3.5 NO 708.3 2.0 5.5 NO 708.4 2.9 8.0 NO 708.5 3.3 9.0 NO CBIN11431 A4 CI0788 Curb Inlet 391.9 397.8 5.9 391.9 0.0 0.0 NO 391.9 0.0 0.0 NO 397.9 0.0 7.6 NO 398.0 0.0 10.6 NO CBIN11432 A4 CI0787 Curb Inlet 387.6 397.1 9.4 388.7 5.3 5.3 NO 389.9 8.3 8.3 NO 397.1 12.2 32.1 NO 397.2 13.7 36.8 NO CBIN11433 A4 CI0791 Curb Inlet 378.3 385.7 7.4 379.5 1.0 58.2 NO 379.8 1.5 93.6 NO 380.2 2.1 137.7 NO 380.3 2.4 148.8 NO CBIN11434 A4 CI0779 Curb Inlet 352.3 361.3 9.0 353.9 3.6 76.1 NO 354.4 5.6 123.9 NO 361.3 8.1 192.7 NO 361.4 9.1 209.5 NO CBIN11435 A4 CI0782 Curb Inlet 347.1 358.6 11.5 349.2 2.5 78.1 NO 349.8 3.9 127.0 NO 358.6 5.6 192.2 NO 358.6 6.3 213.2 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 92 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11436 A4 CI0783 Curb Inlet 349.7 358.6 9.0 349.7 0.0 0.0 NO 349.7 0.0 0.0 NO 358.7 0.0 16.1 NO 358.7 0.0 24.5 NO CBIN11437 A4 CI10513 Curb Inlet 561.1 565.1 4.0 565.1 11.4 11.4 NO 565.6 19.5 19.5 NO 570.3 29.8 29.8 YES 572.7 34.2 34.2 YES CLEN11126 A4 Cleanout 669.6 677.9 8.3 669.6 0.0 0.0 NO 669.6 0.0 0.0 NO 669.6 0.0 0.0 NO 669.6 0.0 0.0 NO INLT10673 A4 Inlet 671.6 679.9 8.3 671.6 0.0 0.0 NO 671.6 0.0 0.0 NO 671.6 0.0 0.0 NO 671.6 0.0 0.0 NO INLT10674 A4 Inlet 670.8 682.9 12.1 670.8 0.0 0.0 NO 670.8 0.0 0.0 NO 670.8 0.0 0.0 NO 670.8 0.0 0.0 NO INLT10675 A4 Inlet 669.8 682.7 12.9 670.2 1.1 1.1 NO 670.3 1.8 1.8 NO 670.4 2.6 2.6 NO 670.4 2.9 2.9 NO INLT10676 A4 Inlet 669.5 681.2 11.7 669.8 0.0 1.1 NO 669.9 0.0 1.7 NO 670.0 0.0 2.5 NO 670.0 0.0 2.8 NO INLT10677 A4 Inlet 668.5 672.5 4.0 668.7 0.0 1.1 NO 668.7 0.0 1.7 NO 668.7 0.0 2.5 NO 668.7 0.0 2.8 NO INLT10678 A4 Inlet 661.9 668.3 6.4 662.1 0.0 1.1 NO 662.1 0.0 1.7 NO 662.2 0.0 2.5 NO 662.2 0.0 2.8 NO OTHR11015 A4 Other 654.7 658.7 4.0 654.8 0.0 1.1 NO 654.9 0.0 1.7 NO 654.9 0.0 2.5 NO 654.9 0.0 2.8 NO INLT10679 A4 Inlet 672.2 676.2 4.0 672.9 0.0 12.9 NO 673.1 0.0 22.0 NO 673.4 0.0 33.3 NO 673.5 0.0 38.1 NO INLT10680 A4 Inlet 676.0 680.0 4.0 676.6 12.9 12.9 NO 676.8 22.0 22.0 NO 677.0 33.3 33.3 NO 677.2 38.1 38.1 NO INLT10681 A4 Inlet 669.4 673.4 4.0 669.9 0.0 12.9 NO 670.0 0.0 22.0 NO 670.2 0.0 33.3 NO 670.2 0.0 38.1 NO OTHR11016 A4 Other 659.5 663.5 4.0 660.5 0.0 12.9 NO 660.8 0.0 22.0 NO 661.9 0.0 33.3 NO 663.8 0.0 38.1 NO INLT10682 A4 Inlet 653.5 669.3 15.7 669.1 0.0 228.5 NO 675.8 0.0 281.4 YES 682.2 0.0 594.3 YES 682.9 0.0 614.0 YES OTLT10184 A4 Outlet 652.5 658.1 5.7 655.4 34.2 261.6 NO 655.8 93.4 360.5 NO 659.8 157.8 628.8 YES 661.7 187.4 718.1 YES INLT10683 A4 Inlet 642.4 646.7 4.3 650.6 6.8 252.8 YES 653.5 18.8 324.4 YES 659.8 32.2 441.2 YES 661.7 37.8 470.6 YES OTLT10185 A4 Outlet 642.0 648.4 6.4 646.0 0.0 252.7 NO 646.2 0.0 324.3 NO 646.6 0.0 441.1 NO 646.6 0.0 470.6 NO INLT10684 A4 Inlet 678.8 682.8 4.0 678.8 0.0 0.0 NO 678.8 0.0 0.0 NO 678.8 0.0 0.0 NO 678.8 0.0 0.0 NO INLT10685 A4 Inlet 677.7 681.7 4.0 677.7 0.0 0.0 NO 677.7 0.0 0.0 NO 677.7 0.0 0.0 NO 677.7 0.0 0.0 NO INLT10686 A4 Inlet 676.0 680.0 4.0 676.0 0.0 0.0 NO 676.0 0.0 0.0 NO 676.0 0.0 0.0 NO 676.0 0.0 0.0 NO INLT10687 A4 Inlet 701.0 705.0 4.0 701.0 0.0 0.0 NO 701.0 0.0 0.0 NO 701.0 0.0 0.0 NO 701.0 0.0 0.0 NO INLT10688 A4 Inlet 694.4 698.4 4.0 694.4 0.0 0.0 NO 694.4 0.0 0.0 NO 694.4 0.0 0.0 NO 694.4 0.0 0.0 NO INLT10689 A4 Inlet 692.3 696.3 4.0 692.3 0.0 0.0 NO 692.3 0.0 0.0 NO 693.1 0.0 3.2 NO 693.4 0.0 4.3 NO INLT10690 A4 Inlet 691.0 695.0 4.0 691.6 1.0 1.9 NO 692.2 2.1 2.8 NO 692.9 3.2 6.4 NO 693.2 3.7 9.1 NO INLT10691 A4 Inlet 689.6 693.6 4.0 691.5 13.4 55.9 NO 692.1 21.3 89.9 NO 692.8 31.4 129.6 NO 693.1 35.3 145.3 NO INLT10692 A4 Inlet 705.3 709.3 4.0 706.3 3.5 43.9 NO 706.6 5.4 70.8 NO 706.9 7.8 103.0 NO 707.1 8.8 115.9 NO OTLT10186 A4 Outlet 688.5 692.5 4.0 689.3 0.0 56.0 NO 689.3 0.0 89.8 NO 689.3 0.0 127.9 NO 689.3 0.0 144.5 NO OTHR11017 A4 Other 698.2 702.2 4.0 701.8 3.4 313.9 NO 702.8 5.9 584.8 NO 703.6 9.2 914.0 YES 703.9 10.5 1058.7 YES OTHR11018 A4 Other 695.3 699.3 4.0 697.5 0.9 314.0 NO 698.2 1.6 585.1 NO 698.9 2.4 914.1 NO 699.1 2.8 1056.8 NO OTHR11019 A4 Other 689.9 693.9 4.0 692.3 0.9 314.1 NO 692.8 1.5 585.5 NO 693.3 2.3 915.0 NO 693.4 2.6 1055.8 NO OTHR11020 A4 Other 686.7 693.1 6.4 688.9 0.9 330.1 NO 689.5 1.5 647.3 NO 690.2 2.3 1023.7 NO 690.4 2.7 1166.1 NO OTHR11021 A4 Other 683.9 735.0 51.1 687.3 2.5 329.9 NO 688.4 4.3 636.1 NO 689.0 6.6 1021.8 NO 689.2 7.6 1166.1 NO OTHR11022 A4 Other 681.1 732.2 51.1 684.2 0.0 329.8 NO 684.8 0.0 631.5 NO 685.5 0.0 1020.7 NO 685.7 0.0 1164.8 NO INLT10693 A4 Inlet 708.1 712.1 4.0 709.8 0.0 41.0 NO 710.3 0.0 66.1 NO 711.1 0.0 96.7 NO 712.2 0.0 109.5 NO INLT10694 A4 Inlet 708.9 712.9 4.0 710.5 10.1 41.0 NO 711.1 16.0 66.0 NO 711.9 23.5 97.9 NO 713.0 26.6 110.2 NO INLT10695 A4 Inlet 709.8 721.5 11.8 711.4 0.0 32.1 NO 712.0 0.0 51.9 NO 712.7 0.0 76.2 NO 718.3 0.0 87.6 NO INLT10696 A4 Inlet 710.6 731.0 20.4 711.8 0.0 32.1 NO 712.3 0.0 51.8 NO 713.0 0.0 76.1 NO 719.2 0.0 90.3 NO INLT10697 A4 Inlet 725.3 729.3 4.0 727.8 5.5 219.0 NO 728.8 9.2 400.3 NO 730.4 13.6 630.3 YES 731.5 15.4 672.0 YES INLT10698 A4 Inlet 782.0 786.0 4.0 782.0 0.0 0.0 NO 782.0 0.0 0.0 NO 782.0 0.0 0.0 NO 782.0 0.0 0.0 NO INLT10699 A4 Inlet 732.7 796.3 63.6 734.8 57.9 166.7 NO 735.5 113.1 315.5 NO 735.9 172.9 479.1 NO 736.1 200.8 554.2 NO OTLT10187 A4 Outlet 720.0 725.7 5.7 720.0 0.0 219.9 NO 720.1 0.0 402.4 NO 720.1 0.0 611.8 NO 720.2 0.0 843.6 NO OTHR11023 A4 Other 724.0 746.8 22.8 724.1 0.0 0.1 NO 725.2 0.0 0.6 NO 727.1 0.0 1.1 NO 746.8 0.0 24.8 NO OTHR11024 A4 Other 701.3 705.3 4.0 704.0 1.0 312.7 NO 704.8 1.7 582.5 NO 705.5 2.5 910.9 NO 705.8 2.9 1058.9 NO OTHR11025 A4 Other 679.0 688.6 9.6 681.3 1.9 330.3 NO 681.9 3.4 633.1 NO 682.6 5.4 1022.7 NO 683.1 6.2 1167.0 NO OTHR11026 A4 Other 675.9 679.9 4.0 677.7 0.0 330.1 NO 678.2 0.0 632.5 NO 682.2 0.0 1021.5 YES 682.9 0.0 1165.6 YES OTHR11027 A4 Other 664.4 668.4 4.0 669.3 1.9 330.5 NO 675.8 3.3 633.8 YES 682.2 5.1 1023.0 YES 682.9 5.9 1061.0 YES OTHR11028 A4 Other 663.3 667.3 4.0 669.1 3.0 343.8 YES 675.8 5.3 517.0 YES 682.2 8.3 724.3 YES 682.9 9.6 751.3 YES INLT10700 A4 Inlet 721.5 747.0 25.6 724.1 1.3 220.1 NO 725.2 2.1 402.6 NO 727.1 3.0 617.1 NO 747.1 3.4 716.8 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 93 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR11029 A4 Other 656.4 666.2 9.8 669.1 0.8 320.5 YES 675.8 1.4 378.1 YES 682.2 2.1 602.6 YES 682.9 2.3 665.9 YES OTHR11030 A4 Other 735.4 739.4 4.0 735.4 0.0 0.0 NO 735.4 0.0 0.0 NO 735.4 0.0 0.0 NO 735.5 0.0 2.5 NO OTHR11031 A4 Other 688.2 692.2 4.0 690.9 1.3 329.9 NO 691.5 3.2 646.9 NO 692.0 5.3 1023.4 NO 692.2 6.2 1166.0 NO INLT10701 A4 ZINL12719 Inlet 551.6 559.0 7.4 551.6 0.0 0.0 NO 551.6 0.0 0.0 NO 551.6 0.0 0.0 NO 551.6 0.0 0.0 NO CLEN11127 A4 ZCO11153 Cleanout 550.5 563.1 12.6 550.5 0.0 0.0 NO 550.5 0.0 0.0 NO 550.5 0.0 0.0 NO 550.5 0.0 0.0 NO OTLT10188 A4 ZOUT10394 Outlet 548.5 552.5 4.0 548.5 0.0 0.0 NO 548.5 0.0 0.0 NO 548.5 0.0 0.0 NO 548.5 0.0 0.0 NO OTHR11032 A4 Other 972.6 976.6 4.0 972.6 0.0 0.0 NO 972.6 0.0 0.0 NO 972.6 0.0 0.0 NO 972.6 0.0 0.0 NO OTHR11033 A4 Other 569.8 573.8 4.0 573.7 8.8 285.7 NO 574.1 16.7 403.4 NO 574.4 26.2 533.3 NO 574.5 30.4 583.4 NO OTHR11034 A4 Other 568.7 572.7 4.0 573.3 0.0 290.8 NO 573.4 0.0 412.2 NO 573.7 0.0 555.3 NO 573.8 0.0 610.4 YES OTHR11035 A4 Other 567.2 571.2 4.0 568.9 0.0 382.0 NO 569.0 0.0 413.6 NO 569.2 0.0 558.5 NO 569.4 0.0 614.1 NO OTHR11036 A4 Other 577.3 581.3 4.0 581.2 9.2 285.3 NO 581.8 16.2 399.1 NO 582.4 25.5 539.0 YES 582.6 29.0 590.3 YES OTLT10189 A4 Outlet 639.3 643.3 4.0 639.4 5.0 253.4 NO 639.4 8.2 325.2 NO 639.4 12.2 442.0 NO 639.4 13.9 471.7 NO OTHR11037 A4 Other 638.0 642.0 4.0 639.0 0.0 253.4 NO 639.1 0.0 325.2 NO 639.3 0.0 442.0 NO 639.3 0.0 471.7 NO OTHR11038 A4 Other 640.7 644.7 4.0 643.9 0.8 252.9 NO 644.3 1.4 324.6 NO 644.8 2.1 441.3 NO 644.9 2.4 470.9 NO OTHR11039 A4 Other 645.1 649.1 4.0 650.6 11.3 262.7 YES 653.5 19.0 353.6 YES 659.8 28.5 603.0 YES 661.7 32.5 651.2 YES OTHR11040 A4 Other 551.9 555.9 4.0 559.3 18.5 286.8 YES 562.9 32.1 404.9 YES 567.2 48.3 538.1 YES 568.9 55.4 573.8 YES OTLT10190 A4 Outlet 789.5 793.5 4.0 789.5 3.9 23.2 NO 789.5 6.1 41.2 NO 789.5 8.8 63.1 NO 789.5 10.0 72.4 NO OTHR11041 A4 Other 741.1 745.1 4.0 743.5 20.6 213.8 NO 744.6 34.3 392.8 NO 746.3 50.9 677.5 YES 748.5 57.7 780.6 YES INLT10702 A4 Inlet 861.7 865.7 4.0 862.3 29.8 56.3 NO 862.5 53.0 89.6 NO 862.7 80.2 142.4 NO 862.8 91.6 170.8 NO OTHR11042 A4 Other 867.7 871.7 4.0 870.2 31.6 47.9 NO 870.8 50.2 78.1 NO 871.4 73.3 115.9 NO 871.5 82.7 131.6 NO INLT10703 A4 ZINL13118 Inlet 560.8 564.8 4.0 564.7 1.4 300.8 NO 566.4 2.6 488.7 YES 568.3 4.0 766.8 YES 569.0 4.5 815.5 YES CLEN11128 A4 CO41192 Cleanout 778.6 788.4 9.8 778.6 0.0 0.0 NO 778.6 0.0 0.0 NO 778.6 0.0 0.0 NO 778.6 0.0 0.0 NO OTHR11043 A4 Other 715.0 719.0 4.0 717.5 9.2 310.7 NO 718.1 22.9 577.9 NO 718.6 37.5 901.8 NO 719.0 43.7 1210.7 NO OTHR11044 A4 Other 704.8 708.8 4.0 707.5 6.1 312.6 NO 708.3 12.2 582.2 NO 709.0 19.2 911.1 NO 709.3 22.2 1068.1 NO DETB10004 A4 ZOTHER11727Detention Basin 801.3 805.3 4.0 802.0 38.8 115.0 NO 802.3 68.6 206.6 NO 802.5 105.4 318.9 NO 802.6 121.4 370.2 NO OTLT10191 A4 Outlet 830.9 834.9 4.0 832.5 0.0 56.3 NO 832.8 0.0 89.6 NO 833.2 0.0 142.3 NO 833.4 0.0 170.7 NO OTHR11045 A4 ZOTHER10529Other 850.4 855.4 5.0 851.4 0.0 50.0 NO 851.6 0.0 99.8 NO 851.9 0.0 142.9 NO 851.9 0.0 149.2 NO OTHR11046 A4 Other 587.8 591.8 4.0 593.4 5.8 277.8 YES 596.4 11.0 377.5 YES 600.6 17.3 505.4 YES 602.5 20.0 532.2 YES OTLT10192 A4 ZOUT10382 Outlet 587.1 598.4 11.3 587.1 0.0 1.4 NO 587.1 0.0 2.3 NO 587.1 0.0 3.5 NO 587.1 0.0 3.9 NO OTHR11047 A4 Other 583.1 587.1 4.0 585.9 1.2 284.4 NO 586.3 2.2 394.7 NO 586.6 3.3 526.6 NO 586.8 3.8 574.9 NO INLT10704 A4 ZINL12654 Inlet 589.3 598.4 9.1 589.3 0.0 0.0 NO 589.3 0.0 0.0 NO 589.3 0.0 0.0 NO 589.3 0.0 0.0 NO OTLT10193 A4 ZOUT10388 Outlet 618.1 622.1 4.0 618.1 0.0 0.0 NO 618.1 0.0 0.0 NO 618.1 0.0 0.0 NO 618.1 0.0 0.0 NO INLT10705 A4 ZINL12849 Inlet 623.7 627.7 4.0 623.7 0.0 0.0 NO 623.7 0.0 0.0 NO 623.7 0.0 0.0 NO 623.7 0.0 0.0 NO OTHR11048 A4 ZOTHER10111Other 406.3 452.9 46.6 406.3 0.0 0.0 NO 406.3 0.0 0.0 NO 406.5 0.0 0.2 NO 406.5 0.0 0.2 NO OTLT10194 A4 ZOUT10305 Outlet 535.0 539.0 4.0 540.3 0.0 284.4 YES 540.7 0.0 395.1 YES 541.2 0.0 503.1 YES 541.4 0.0 542.2 YES OTLT10195 A4 Outlet 534.3 538.3 4.0 534.4 1.6 284.5 NO 534.4 2.7 395.2 NO 534.4 4.0 503.2 NO 534.4 4.6 542.3 NO DETB10005 A4 Detention Basin 534.0 538.0 4.0 535.5 0.0 284.5 NO 535.7 0.0 395.2 NO 535.8 0.0 503.2 NO 535.9 0.0 542.3 NO OTHR11049 A4 Other 512.0 516.0 4.0 512.0 18.2 285.5 NO 512.0 37.8 397.9 NO 512.0 64.1 505.9 NO 512.0 75.3 545.2 NO OTHR11050 A4 Other 530.1 534.1 4.0 530.8 44.1 64.2 NO 531.0 80.5 115.0 NO 531.2 124.4 174.8 NO 532.3 143.4 201.2 NO INLT10706 A4 Inlet 523.2 535.4 12.2 524.3 0.0 60.9 NO 524.7 0.0 114.8 NO 529.9 0.0 261.3 NO 532.2 0.0 259.6 NO INLT10707 A4 Inlet 518.8 531.1 12.3 520.3 6.4 64.1 NO 520.9 11.7 121.4 NO 531.7 18.9 256.6 NO 531.7 21.9 256.7 NO INLT10708 A4 Inlet 516.8 529.0 12.2 518.1 27.4 77.3 NO 518.8 49.1 160.4 NO 529.9 75.2 304.4 NO 530.7 86.1 284.8 YES INLT10709 A4 Inlet 500.1 510.3 10.2 502.9 10.3 110.9 NO 510.3 19.4 223.4 NO 510.6 30.0 311.0 NO 510.5 34.4 322.6 NO INLT10710 A4 Inlet 512.9 528.2 15.3 515.0 26.4 102.1 NO 516.4 45.4 204.6 NO 528.6 69.3 344.6 NO 529.3 78.8 343.2 YES INLT10711 A4 Inlet 498.5 506.1 7.6 501.8 30.9 139.1 NO 506.1 51.8 280.3 NO 506.4 79.4 421.4 NO 506.9 90.1 433.5 NO INLT10712 A4 Inlet 497.3 505.8 8.6 498.6 3.7 15.7 NO 499.1 5.8 24.6 NO 504.5 8.5 34.2 NO 505.9 9.6 45.0 NO INLT10713 A4 Inlet 498.0 511.1 13.1 499.2 3.9 12.2 NO 499.6 6.2 19.1 NO 511.1 9.0 26.6 NO 511.1 10.1 35.3 NO INLT10714 A4 Inlet 498.4 511.8 13.4 499.5 0.0 8.6 NO 499.9 0.0 13.5 NO 508.7 0.0 18.6 NO 511.8 0.0 25.2 NO INLT10715 A4 Inlet 498.6 511.7 13.1 499.7 4.0 8.6 NO 500.1 6.3 13.4 NO 509.5 9.1 18.6 NO 511.7 10.2 25.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 94 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10716 A4 Inlet 499.7 515.1 15.4 500.4 0.0 5.1 NO 500.7 0.0 8.1 NO 508.4 0.0 11.2 NO 515.1 0.0 18.3 NO INLT10717 A4 Inlet 500.3 519.6 19.3 501.0 0.0 5.2 NO 501.3 0.0 8.1 NO 502.1 0.0 12.1 NO 519.6 0.0 16.5 NO INLT10718 A4 Inlet 501.2 523.9 22.7 502.1 5.3 5.3 NO 502.5 8.3 8.3 NO 519.8 12.1 12.1 NO 523.9 13.7 16.9 NO INLT10719 A4 Inlet 501.5 524.5 22.9 502.2 0.0 0.1 NO 502.5 0.0 0.1 NO 517.3 0.0 1.1 NO 524.5 0.0 3.9 NO INLT10720 A4 ZINL12882 Inlet 574.2 581.9 7.7 576.1 0.0 52.7 NO 577.0 0.0 95.6 NO 577.5 0.0 202.1 NO 577.6 0.0 215.1 NO INLT10721 A4 ZINL13022 Inlet 518.2 522.2 4.0 518.2 0.0 0.0 NO 518.9 0.0 0.2 NO 520.0 0.0 0.9 NO 520.6 0.0 1.6 NO CBIN11438 A4 CI0989 Curb Inlet 555.1 559.1 4.0 559.4 1.0 17.4 NO 565.9 1.6 25.8 YES 574.9 2.4 36.0 YES 579.6 2.7 40.2 YES CBIN11439 A4 CI1440 Curb Inlet 555.6 559.6 4.0 561.5 18.2 18.2 YES 570.4 31.5 31.5 YES 583.7 47.7 47.7 YES 590.6 54.4 54.4 YES OTHR11051 A4 ZOTHER11383Cleanout 555.2 560.0 4.8 560.0 0.0 16.6 NO 566.5 0.0 26.8 YES 576.0 0.0 38.9 YES 580.9 0.0 43.8 YES OTLT10196 A4 OUT034 Outlet 552.1 556.1 4.0 552.1 0.0 7.2 NO 552.1 0.0 11.9 NO 552.1 0.0 17.9 NO 552.1 0.0 20.4 NO DETB10006 A4 Detention Basin 605.7 631.5 25.8 608.9 22.2 258.8 NO 609.3 44.3 333.2 NO 609.8 69.3 449.1 NO 609.9 81.3 480.5 NO INLT10722 A4 Inlet 767.2 780.7 13.5 769.0 2.9 107.3 NO 769.7 4.8 203.2 NO 770.4 7.1 313.6 NO 770.7 8.1 360.1 NO INLT10723 A4 Inlet 768.5 780.5 11.9 768.8 0.0 1.5 NO 768.9 0.0 2.5 NO 769.4 0.0 3.7 NO 769.7 0.0 4.2 NO INLT10724 A4 Inlet 767.1 780.4 13.3 767.9 0.0 1.5 NO 768.6 0.0 2.6 NO 769.3 0.0 4.2 NO 769.6 0.0 4.7 NO INLT10725 A4 Inlet 770.7 781.3 10.7 770.9 0.0 1.5 NO 771.0 0.0 2.5 NO 771.1 0.0 3.7 NO 771.1 0.0 4.2 NO INLT10726 A4 Inlet 768.2 781.7 13.5 770.0 0.0 104.1 NO 770.7 0.0 197.7 NO 771.4 0.0 305.3 NO 771.7 0.0 350.8 NO INLT10727 A4 Inlet 776.9 784.5 7.6 777.1 1.6 1.6 NO 777.2 2.5 2.5 NO 777.3 3.7 3.7 NO 777.3 4.2 4.2 NO INLT10728 A4 Inlet 778.8 785.7 6.9 778.8 0.0 0.0 NO 778.8 0.0 0.0 NO 778.8 0.0 0.0 NO 778.8 0.0 0.0 NO INLT10729 A4 Inlet 772.8 785.7 12.9 773.9 3.1 61.9 NO 774.4 5.5 118.7 NO 774.9 8.3 182.2 NO 775.1 9.5 211.0 NO INLT10730 A4 Inlet 780.1 791.3 11.2 781.4 0.0 60.2 NO 781.9 0.0 115.8 NO 782.4 0.0 178.2 NO 782.6 0.0 206.2 NO CBIN11440 A4 CI1389 Curb Inlet 560.3 564.3 4.0 560.7 2.6 2.6 NO 565.7 4.5 10.4 YES 575.4 6.9 10.4 YES 580.8 7.9 8.0 YES CBIN11441 A4 CI1388 Curb Inlet 557.8 563.6 5.8 558.1 0.0 0.1 NO 565.8 0.0 12.1 YES 575.3 0.0 11.5 YES 580.7 0.0 11.8 YES CBIN11442 A4 CI0024 Curb Inlet 560.6 566.3 5.7 561.3 8.9 8.9 NO 566.9 15.1 15.1 NO 577.1 23.0 23.0 YES 582.7 26.0 26.0 YES INLT10731 A4 Inlet 566.8 574.3 7.5 574.5 1.2 19.5 NO 575.1 2.0 25.5 NO 579.5 2.8 24.4 YES 581.5 3.2 24.8 YES INLT10732 A4 Inlet 566.7 573.5 6.8 573.6 0.0 19.9 NO 574.8 0.0 27.7 YES 579.2 0.0 28.6 YES 581.3 0.0 28.3 YES INLT10733 A4 Inlet 562.2 568.3 6.2 568.4 0.0 52.7 NO 569.0 0.0 73.6 NO 573.6 0.0 70.8 YES 575.8 0.0 69.9 YES INLT10734 A4 Inlet 562.3 570.1 7.8 570.2 0.5 50.6 NO 570.5 1.0 64.9 NO 575.1 1.6 66.5 YES 577.2 1.9 66.9 YES INLT10735 A4 Inlet 562.4 568.6 6.2 569.5 3.5 55.9 NO 572.2 6.4 60.7 YES 576.7 9.8 68.8 YES 578.7 11.2 69.8 YES INLT10736 A4 Inlet 562.4 569.7 7.2 570.0 5.6 44.8 NO 572.7 9.1 57.7 YES 577.1 13.4 65.7 YES 579.2 15.2 66.6 YES INLT10737 A4 ZINL12692 Inlet 557.6 561.8 4.2 563.7 33.8 606.2 YES 565.1 55.4 942.3 YES 566.8 83.2 1235.8 YES 567.2 94.7 1294.7 YES INLT10738 A4 Inlet 785.3 795.0 9.7 786.4 0.0 52.9 NO 786.8 0.0 104.3 NO 787.2 0.0 162.5 NO 787.4 0.0 188.0 NO DETB10007 A4 ZBAS10005 Detention Basin 610.6 614.6 4.0 610.6 0.0 14.7 NO 610.6 0.0 23.6 NO 610.6 0.0 34.8 NO 610.6 0.0 39.2 NO OTHR11052 A4 Other 578.3 582.3 4.0 579.8 0.0 7.9 NO 579.9 0.0 9.0 NO 580.2 0.0 16.1 NO 580.2 0.0 16.3 NO OTHR11053 A4 Other 576.3 580.3 4.0 577.1 0.0 7.9 NO 577.1 0.0 9.0 NO 577.3 0.0 13.9 NO 577.4 0.0 14.6 NO OTHR11054 A4 Other 581.0 585.0 4.0 582.5 0.0 8.2 NO 582.8 0.0 9.9 NO 583.0 0.0 12.0 NO 583.0 0.0 13.9 NO OTHR11055 A4 Other 582.4 586.4 4.0 584.2 0.0 7.4 NO 584.5 0.0 7.8 NO 584.7 0.0 8.1 NO 584.8 0.0 8.2 NO OTHR11056 A4 Other 583.9 587.9 4.0 585.9 0.0 8.2 NO 586.3 0.0 9.4 NO 586.7 0.0 10.7 NO 586.9 0.0 11.1 NO OTHR11057 A4 Other 584.9 588.9 4.0 587.1 0.0 8.7 NO 587.5 0.0 10.5 NO 588.0 0.0 12.6 NO 588.3 0.0 13.5 NO OTHR11058 A4 Other 586.6 590.6 4.0 588.6 0.0 8.1 NO 589.2 0.0 9.6 NO 589.9 0.0 10.8 NO 590.2 0.0 11.4 NO OTHR11059 A4 Other 588.0 592.0 4.0 589.8 0.0 7.5 NO 590.4 0.0 8.8 NO 591.2 0.0 10.2 NO 591.5 0.0 10.8 NO OTHR11060 A4 Other 589.0 593.0 4.0 590.8 0.0 7.8 NO 591.5 0.0 9.2 NO 592.4 0.0 10.7 NO 592.9 0.0 11.4 NO OTHR11061 A4 Other 590.1 594.1 4.0 592.1 0.0 7.9 NO 593.2 0.0 16.8 NO 594.8 0.0 27.2 NO 595.5 0.0 31.8 YES OTHR11062 A4 Other 559.6 564.1 4.5 564.3 0.0 32.0 NO 565.4 0.0 51.0 YES 567.0 0.0 73.9 YES 567.4 0.0 95.2 YES OTHR11063 A4 Other 570.6 574.6 4.0 572.9 0.0 1.5 NO 573.7 0.0 2.4 NO 574.4 0.0 3.6 NO 574.8 0.0 4.1 NO OTHR11064 A4 Other 565.6 572.5 6.9 567.7 0.0 30.2 NO 568.3 0.0 46.5 NO 570.7 0.0 93.9 NO 571.0 0.0 103.3 NO OTHR11065 A4 Other 567.5 573.7 6.2 569.5 0.0 29.3 NO 569.9 0.0 45.6 NO 570.2 0.0 66.7 NO 570.3 0.0 73.1 NO OTHR11066 A4 Other 559.0 563.0 4.0 564.1 0.0 598.0 YES 565.3 0.0 925.2 YES 566.9 0.0 1227.0 YES 567.3 0.0 1282.3 YES OTHR11067 A4 Other 511.7 515.7 4.0 515.9 0.0 150.3 NO 516.4 0.0 249.7 NO 516.7 0.0 348.1 NO 516.8 0.0 388.4 YES OTHR11068 A4 Other 509.2 513.2 4.0 511.4 0.0 139.0 NO 511.8 0.0 235.3 NO 512.3 0.0 372.8 NO 512.4 0.0 415.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 95 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR11069 A4 Other 541.7 545.7 4.0 544.5 0.0 284.5 NO 545.8 0.0 395.0 NO 548.5 0.0 502.9 YES 549.8 0.0 542.1 YES OTHR11070 A4 Other 540.7 544.7 4.0 543.9 0.0 284.4 NO 545.5 0.0 394.7 NO 548.5 0.0 502.6 YES 549.8 0.0 541.8 YES OTHR11071 A4 Other 539.7 543.7 4.0 543.2 0.0 284.3 NO 545.3 0.0 394.4 YES 548.4 0.0 502.3 YES 549.8 0.0 541.4 YES OTHR11072 A4 Other 538.7 542.7 4.0 542.8 0.0 284.1 NO 545.2 0.0 394.1 YES 548.4 0.0 502.2 YES 549.7 0.0 541.2 YES OTHR11073 A4 Other 537.6 541.6 4.0 542.6 0.0 283.8 NO 545.2 0.0 394.0 YES 548.4 0.0 502.1 YES 549.7 0.0 541.1 YES OTHR11074 A4 Other 550.6 554.6 4.0 553.1 0.0 282.3 NO 553.6 0.0 391.2 NO 554.0 0.0 499.7 NO 554.2 0.0 539.5 NO OTHR11075 A4 Other 549.5 553.5 4.0 552.2 0.0 283.1 NO 552.7 0.0 392.7 NO 553.1 0.0 501.1 NO 553.3 0.0 541.1 NO OTHR11076 A4 Other 548.5 552.5 4.0 551.1 0.0 283.1 NO 551.7 0.0 392.7 NO 552.1 0.0 501.1 NO 552.2 0.0 541.1 NO OTHR11077 A4 Other 547.5 551.5 4.0 550.4 0.0 283.1 NO 551.0 0.0 392.7 NO 551.3 0.0 501.1 NO 551.6 0.0 541.0 NO OTHR11078 A4 Other 546.6 550.6 4.0 549.5 0.0 283.1 NO 550.0 0.0 392.7 NO 550.5 0.0 501.1 NO 550.9 0.0 540.9 NO OTHR11079 A4 Other 545.6 549.6 4.0 548.7 0.0 283.1 NO 549.2 0.0 392.7 NO 549.7 0.0 501.1 NO 550.4 0.0 540.7 NO OTHR11080 A4 Other 544.6 548.6 4.0 548.2 0.0 283.0 NO 548.6 0.0 392.7 NO 549.3 0.0 501.0 NO 550.2 0.0 540.4 YES OTHR11081 A4 Other 543.7 547.7 4.0 545.2 0.0 283.0 NO 546.0 0.0 392.7 NO 548.5 0.0 500.8 NO 549.8 0.0 540.1 YES OTHR11082 A4 Other 696.8 700.8 4.0 700.1 0.0 313.8 NO 701.0 0.0 584.8 NO 701.7 0.0 913.2 NO 701.9 0.0 1056.7 YES OTHR11083 A4 Other 692.6 696.6 4.0 694.7 0.0 314.0 NO 695.4 0.0 585.1 NO 696.1 0.0 914.1 NO 696.3 0.0 1056.0 NO OTHR11084 A4 Other 687.4 691.4 4.0 689.9 0.0 329.9 NO 690.5 0.0 646.7 NO 691.0 0.0 1023.1 NO 691.2 0.0 1165.7 NO OTHR11085 A4 Other 685.3 714.0 28.8 687.5 0.0 329.9 NO 688.6 0.0 646.0 NO 689.2 0.0 1021.6 NO 689.4 0.0 1164.8 NO OTHR11086 A4 Other 682.5 733.6 51.1 685.9 0.0 329.8 NO 686.8 0.0 632.7 NO 687.7 0.0 1020.5 NO 687.8 0.0 1165.1 NO OTHR11087 A4 Other 699.8 703.8 4.0 702.3 0.0 312.8 NO 703.3 0.0 582.5 NO 704.1 0.0 910.0 NO 704.4 0.0 1057.1 NO OTHR11088 A4 Other 680.0 710.4 30.4 683.3 0.0 329.7 NO 683.9 0.0 631.3 NO 684.4 0.0 1020.0 NO 684.6 0.0 1164.0 NO OTHR11089 A4 Other 677.4 682.3 4.8 679.8 0.0 330.2 NO 680.4 0.0 632.8 NO 682.2 0.0 1022.0 NO 682.9 0.0 1166.2 NO OTHR11090 A4 Other 670.2 674.2 4.0 672.0 0.0 330.1 NO 675.8 0.0 632.6 YES 682.2 0.0 1022.7 YES 682.9 0.0 1165.0 YES OTHR11091 A4 Other 663.9 667.9 4.0 669.1 0.0 328.2 YES 675.8 0.0 582.9 YES 682.2 0.0 857.5 YES 682.9 0.0 880.6 YES OTHR11092 A4 Other 659.8 664.8 4.9 669.1 0.0 355.8 YES 675.8 0.0 459.5 YES 682.2 0.0 586.5 YES 682.9 0.0 687.2 YES OTHR11093 A4 Other 655.0 667.8 12.8 669.1 0.0 283.8 YES 675.8 0.0 333.1 YES 682.2 0.0 607.7 YES 682.9 0.0 653.2 YES OTHR11094 A4 Other 689.0 693.0 4.0 691.4 0.0 314.1 NO 691.9 0.0 585.5 NO 692.5 0.0 914.9 NO 692.6 0.0 1055.5 NO OTHR11095 A4 Other 664.5 669.7 5.2 666.8 0.0 153.0 NO 667.8 0.0 301.0 NO 668.5 0.0 449.9 NO 668.7 0.0 493.8 NO OTHR11096 A4 Other 658.0 663.1 5.2 659.7 0.0 153.0 NO 660.4 0.0 300.8 NO 660.8 0.0 436.1 NO 660.9 0.0 493.8 NO OTHR11097 A4 Other 651.4 656.6 5.2 653.3 0.0 152.6 NO 654.0 0.0 300.3 NO 654.5 0.0 434.1 NO 654.7 0.0 493.6 NO OTHR11098 A4 Other 644.9 650.1 5.2 648.4 0.0 151.5 NO 649.3 0.0 299.1 NO 649.8 0.0 432.4 NO 650.0 0.0 493.2 NO OTHR11099 A4 Other 638.4 643.5 5.2 640.7 0.0 150.3 NO 641.6 0.0 298.1 NO 642.1 0.0 431.6 NO 642.3 0.0 493.0 NO OTHR11100 A4 Other 631.9 637.0 5.2 634.6 0.0 150.0 NO 635.4 0.0 296.9 NO 635.9 0.0 431.1 NO 636.2 0.0 492.8 NO OTHR11101 A4 Other 625.3 630.5 5.2 628.1 0.0 149.4 NO 629.2 0.0 295.8 NO 629.9 0.0 430.2 NO 630.2 0.0 492.5 NO OTHR11102 A4 Other 618.8 624.0 5.2 621.8 0.0 148.9 NO 622.8 0.0 294.6 NO 623.4 0.0 429.6 NO 623.7 0.0 492.2 NO OTHR11103 A4 Other 612.3 617.4 5.2 615.8 0.0 148.5 NO 616.8 0.0 294.1 NO 617.4 0.0 429.2 NO 617.7 0.0 492.0 NO OTHR11104 A4 Other 605.7 610.9 5.2 608.5 0.0 148.2 NO 609.4 0.0 293.8 NO 610.0 0.0 429.0 NO 610.2 0.0 491.8 NO OTHR11105 A4 Other 599.2 604.4 5.2 601.5 0.0 148.1 NO 602.3 0.0 293.8 NO 603.1 0.0 428.9 NO 603.3 0.0 491.8 NO OTHR11106 A4 Other 592.7 597.8 5.2 596.1 0.0 147.8 NO 597.1 0.0 293.0 NO 598.3 0.0 428.6 NO 601.4 0.0 491.5 YES OTHR11107 A4 Other 586.2 591.3 5.2 589.0 0.0 147.6 NO 590.3 0.0 292.6 NO 598.2 0.0 428.1 YES 601.4 0.0 491.0 YES OTHR11108 A4 Other 579.6 584.8 5.2 581.2 0.0 147.3 NO 590.2 0.0 292.1 YES 598.2 0.0 363.7 YES 601.4 0.0 356.0 YES OTHR11109 A4 Other 933.2 937.2 4.0 933.8 0.0 16.5 NO 934.0 0.0 35.8 NO 934.2 0.0 56.9 NO 934.2 0.0 65.9 NO OTHR11110 A4 Other 923.0 927.0 4.0 924.2 0.0 16.2 NO 924.4 0.0 35.3 NO 924.7 0.0 56.1 NO 924.7 0.0 65.0 NO OTHR11111 A4 Other 912.8 916.8 4.0 913.7 0.0 15.4 NO 914.0 0.0 34.7 NO 914.2 0.0 54.9 NO 914.3 0.0 63.6 NO OTHR11112 A4 Other 902.6 906.6 4.0 903.8 0.0 15.2 NO 904.1 0.0 34.4 NO 904.2 0.0 54.7 NO 904.3 0.0 63.3 NO OTHR11113 A4 Other 892.5 896.5 4.0 893.2 0.0 15.0 NO 893.8 0.0 34.3 NO 894.1 0.0 54.6 NO 894.1 0.0 62.9 NO OTHR11114 A4 Other 963.3 967.3 4.0 963.6 0.0 1.9 NO 963.7 0.0 3.3 NO 963.7 0.0 4.9 NO 963.8 0.0 5.6 NO OTHR11115 A4 Other 948.2 952.2 4.0 948.5 0.0 1.9 NO 948.6 0.0 3.2 NO 948.7 0.0 4.8 NO 948.7 0.0 5.5 NO OTHR11116 A4 Other 933.1 937.1 4.0 933.5 0.0 1.8 NO 933.6 0.0 3.1 NO 933.7 0.0 4.7 NO 933.8 0.0 5.3 NO OTHR11117 A4 Other 918.1 922.1 4.0 918.3 0.0 1.8 NO 918.4 0.0 3.0 NO 918.5 0.0 4.6 NO 918.5 0.0 5.2 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 96 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR11118 A4 Other 903.0 907.0 4.0 903.2 0.0 1.7 NO 903.2 0.0 3.0 NO 903.2 0.0 4.5 NO 903.2 0.0 5.2 NO OTHR11119 A4 Other 887.9 891.9 4.0 888.1 0.0 1.7 NO 888.2 0.0 2.9 NO 888.2 0.0 4.4 NO 888.3 0.0 5.1 NO OTHR11120 A4 Other 575.8 579.8 4.0 580.6 0.0 285.3 NO 581.3 0.0 399.1 YES 581.8 0.0 537.3 YES 582.0 0.0 589.2 YES OTHR11121 A4 Other 574.3 578.3 4.0 579.6 0.0 285.2 YES 580.2 0.0 399.1 YES 580.7 0.0 534.5 YES 580.9 0.0 586.0 YES OTHR11122 A4 Other 572.8 576.8 4.0 578.7 0.0 285.1 YES 579.4 0.0 399.0 YES 579.9 0.0 525.0 YES 580.0 0.0 576.4 YES OTHR11123 A4 Other 571.3 575.3 4.0 574.6 0.0 285.0 NO 574.9 0.0 399.0 NO 575.2 0.0 520.0 NO 575.3 0.0 567.9 NO OTHR11124 A4 Other 565.2 569.7 4.6 566.9 0.0 328.3 NO 567.2 0.0 413.6 NO 568.6 0.0 558.5 NO 569.2 0.0 614.1 NO OTHR11125 A4 Other 563.1 567.7 4.6 565.7 0.0 288.6 NO 566.7 0.0 413.6 NO 568.5 0.0 561.1 NO 569.1 0.0 605.6 YES OTHR11126 A4 Other 569.3 573.3 4.0 573.5 0.0 286.7 NO 573.8 0.0 403.4 NO 574.1 0.0 533.2 NO 574.2 0.0 583.4 NO OTHR11127 A4 Other 568.2 572.2 4.0 573.2 0.0 301.4 YES 573.2 0.0 412.2 YES 573.5 0.0 555.3 YES 573.6 0.0 610.3 YES OTHR11128 A4 Other 567.7 571.7 4.0 569.9 0.0 411.6 NO 570.1 0.0 416.7 NO 570.3 0.0 555.2 NO 570.3 0.0 610.3 NO OTHR11129 A4 Other 651.2 655.2 4.0 651.4 0.0 1.1 NO 651.4 0.0 1.7 NO 651.5 0.0 2.5 NO 651.5 0.0 2.8 NO OTHR11130 A4 Other 647.7 651.7 4.0 647.9 0.0 0.9 NO 648.0 0.0 1.7 NO 648.0 0.0 2.1 NO 648.0 0.0 2.4 NO OTHR11131 A4 Other 640.2 644.2 4.0 643.8 0.0 252.9 NO 644.2 0.0 324.5 NO 644.6 0.0 441.3 NO 644.7 0.0 470.8 NO OTHR11132 A4 Other 639.8 643.8 4.0 642.0 0.0 252.9 NO 642.2 0.0 324.5 NO 642.5 0.0 441.3 NO 642.6 0.0 470.8 NO OTHR11133 A4 Other 643.8 647.8 4.0 650.6 0.0 250.4 YES 653.5 0.0 320.6 YES 659.8 0.0 438.2 YES 661.7 0.0 466.7 YES OTHR11134 A4 Other 552.7 556.7 4.0 559.3 0.0 55.9 YES 562.9 0.0 80.0 YES 567.2 0.0 78.5 YES 568.9 0.0 82.2 YES OTHR11135 A4 Other 551.8 555.8 4.0 559.3 0.0 282.3 YES 562.9 0.0 391.3 YES 567.2 0.0 499.8 YES 568.9 0.0 539.6 YES OTHR11136 A4 Other 810.9 814.9 4.0 812.0 0.0 21.3 NO 812.2 0.0 38.6 NO 812.4 0.0 58.4 NO 812.4 0.0 66.8 NO OTHR11137 A4 Other 805.5 809.5 4.0 806.6 0.0 21.7 NO 806.9 0.0 38.3 NO 807.1 0.0 58.1 NO 807.2 0.0 66.4 NO OTHR11138 A4 Other 800.2 804.2 4.0 801.5 0.0 20.7 NO 801.8 0.0 37.6 NO 802.0 0.0 57.1 NO 802.1 0.0 65.5 NO OTHR11139 A4 Other 794.8 798.8 4.0 795.6 0.0 20.4 NO 795.7 0.0 36.8 NO 795.9 0.0 56.5 NO 795.9 0.0 64.8 NO OTHR11140 A4 Other 866.8 870.8 4.0 869.9 0.0 44.3 NO 870.5 0.0 70.4 NO 871.0 0.0 106.2 NO 871.2 0.0 123.1 NO OTHR11141 A4 Other 866.0 870.0 4.0 869.5 0.0 42.7 NO 870.2 0.0 66.9 NO 870.6 0.0 105.5 NO 870.7 0.0 121.0 NO OTHR11142 A4 Other 865.1 869.1 4.0 867.6 0.0 41.4 NO 868.5 0.0 66.2 NO 868.8 0.0 106.5 NO 868.9 0.0 118.1 NO OTHR11143 A4 Other 864.3 868.3 4.0 865.3 0.0 41.3 NO 865.5 0.0 83.8 NO 865.9 0.0 115.5 NO 866.0 0.0 127.8 NO OTHR11144 A4 Other 863.4 867.4 4.0 864.4 0.0 41.4 NO 864.6 0.0 63.0 NO 865.0 0.0 110.7 NO 865.1 0.0 123.9 NO OTHR11145 A4 Other 862.6 866.6 4.0 863.7 0.0 40.8 NO 863.8 0.0 61.2 NO 864.1 0.0 104.4 NO 864.1 0.0 119.1 NO OTHR11146 A4 Other 855.0 861.4 6.3 855.9 0.0 27.3 NO 856.2 0.0 50.1 NO 856.5 0.0 74.8 NO 856.5 0.0 80.8 NO OTHR11147 A4 Other 902.1 906.1 4.0 902.9 0.0 14.2 NO 903.1 0.0 22.6 NO 903.3 0.0 33.0 NO 903.4 0.0 37.3 NO OTHR11148 A4 Other 884.9 888.9 4.0 886.3 0.0 14.0 NO 886.5 0.0 22.4 NO 886.7 0.0 32.8 NO 886.7 0.0 37.1 NO OTHR11149 A4 Other 765.0 769.0 4.0 766.3 0.0 77.6 NO 766.9 0.0 160.2 NO 767.4 0.0 249.7 NO 767.5 0.0 287.9 NO OTHR11150 A4 Other 755.6 759.6 4.0 757.2 0.0 77.4 NO 757.9 0.0 159.9 NO 758.5 0.0 249.4 NO 758.7 0.0 287.6 NO OTHR11151 A4 Other 746.2 750.2 4.0 748.5 0.0 77.2 NO 749.3 0.0 159.4 NO 750.0 0.0 248.2 NO 750.2 0.0 286.8 NO OTHR11152 A4 Other 736.8 740.8 4.0 738.6 0.0 76.9 NO 739.4 0.0 158.8 NO 740.1 0.0 247.7 NO 740.3 0.0 286.3 NO OTHR11153 A4 Other 727.4 731.4 4.0 729.5 0.0 76.8 NO 730.4 0.0 158.6 NO 730.9 0.0 247.3 NO 731.1 0.0 285.7 NO OTHR11154 A4 Other 718.1 722.1 4.0 721.0 0.0 76.6 NO 721.8 0.0 157.4 NO 722.7 0.0 246.8 NO 723.0 0.0 285.4 NO OTHR11155 A4 Other 708.7 712.7 4.0 711.0 0.0 76.4 NO 711.9 0.0 156.5 NO 712.5 0.0 245.7 NO 712.8 0.0 283.9 NO OTHR11156 A4 Other 699.3 703.3 4.0 701.2 0.0 76.3 NO 701.9 0.0 156.4 NO 702.6 0.0 245.4 NO 702.8 0.0 283.6 NO OTHR11157 A4 Other 689.9 693.9 4.0 692.8 0.0 76.2 NO 693.7 0.0 155.8 NO 694.2 0.0 245.1 NO 694.3 0.0 283.2 NO OTHR11158 A4 Other 680.5 684.5 4.0 682.0 0.0 75.8 NO 682.4 0.0 155.4 NO 682.8 0.0 244.8 NO 683.0 0.0 283.1 NO OTHR11159 A4 Other 671.1 675.1 4.0 672.9 0.0 75.8 NO 673.7 0.0 155.3 NO 674.3 0.0 244.5 NO 674.5 0.0 282.7 NO OTHR11160 A4 Other 661.8 665.8 4.0 663.9 0.0 75.3 NO 664.5 0.0 154.6 NO 665.1 0.0 243.3 NO 665.3 0.0 281.8 NO OTHR11161 A4 Other 652.4 656.4 4.0 653.7 0.0 75.1 NO 654.2 0.0 154.5 NO 654.5 0.0 243.2 NO 654.6 0.0 281.6 NO OTHR11162 A4 Other 711.6 715.6 4.0 715.7 0.0 310.7 NO 716.7 0.0 577.9 YES 717.4 0.0 901.2 YES 717.7 0.0 1173.9 YES OTHR11163 A4 Other 708.2 712.2 4.0 710.3 0.0 310.3 NO 710.9 0.0 577.8 NO 711.3 0.0 898.9 NO 711.5 0.0 1078.4 NO OTHR11164 A4 Other 703.1 707.1 4.0 705.3 0.0 312.6 NO 705.9 0.0 582.2 NO 706.6 0.0 910.7 NO 706.9 0.0 1060.8 NO OTHR11165 A4 Other 843.4 847.4 4.0 844.7 0.0 50.0 NO 845.1 0.0 93.3 NO 845.4 0.0 142.7 NO 845.5 0.0 149.2 NO OTHR11166 A4 Other 836.4 840.4 4.0 838.1 0.0 49.8 NO 838.4 0.0 90.4 NO 838.8 0.0 140.1 NO 838.8 0.0 149.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 97 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR11167 A4 Other 829.4 833.4 4.0 830.1 0.0 49.5 NO 830.4 0.0 89.8 NO 830.6 0.0 137.1 NO 830.6 0.0 148.7 NO OTHR11168 A4 Other 822.3 826.3 4.0 823.8 0.0 49.3 NO 824.2 0.0 89.6 NO 824.6 0.0 136.0 NO 824.6 0.0 148.5 NO OTHR11169 A4 Other 815.3 819.3 4.0 816.8 0.0 48.8 NO 816.9 0.0 88.9 NO 817.1 0.0 135.1 NO 817.2 0.0 148.0 NO OTHR11170 A4 Other 808.3 812.3 4.0 810.1 0.0 48.6 NO 810.6 0.0 88.7 NO 810.9 0.0 134.7 NO 811.0 0.0 147.8 NO OTHR11171 A4 Other 602.7 606.7 4.0 607.7 17.4 259.3 NO 607.9 31.8 335.8 YES 608.2 48.9 451.5 YES 608.3 56.0 483.9 YES OTHR11172 A4 Other 599.8 603.8 4.0 603.4 0.0 259.2 NO 603.7 0.0 335.8 NO 604.1 0.0 451.5 NO 604.2 0.0 483.9 NO OTHR11173 A4 Other 596.8 600.8 4.0 601.1 0.0 259.2 NO 601.5 0.0 335.8 NO 601.9 0.0 451.5 YES 602.8 0.0 483.9 YES OTHR11174 A4 Other 593.8 597.8 4.0 599.0 0.0 259.2 YES 598.9 0.0 335.8 YES 600.7 0.0 451.5 YES 602.6 0.0 483.2 YES OTHR11175 A4 Other 590.8 594.8 4.0 593.5 0.0 258.7 NO 596.4 0.0 335.8 YES 600.6 0.0 449.2 YES 602.5 0.0 482.4 YES OTHR11176 A4 Other 586.5 590.5 4.0 593.1 0.0 277.7 YES 596.3 0.0 373.8 YES 600.6 0.0 473.7 YES 602.5 0.0 514.7 YES OTHR11177 A4 Other 583.5 587.5 4.0 587.1 0.0 284.3 NO 587.6 0.0 393.8 NO 588.1 0.0 522.3 NO 588.3 0.0 570.3 NO OTHR11178 A4 Other 581.1 585.1 4.0 584.5 0.0 284.4 NO 585.0 0.0 394.7 NO 585.4 0.0 525.9 NO 585.6 0.0 574.6 NO OTHR11179 A4 Other 579.2 583.2 4.0 583.1 0.0 284.4 NO 583.4 0.0 394.7 NO 583.8 0.0 520.3 NO 583.9 0.0 572.2 NO OTHR11180 A4 Other 534.8 538.8 4.0 540.1 0.0 284.4 YES 540.5 0.0 395.1 YES 540.9 0.0 503.1 YES 541.0 0.0 542.2 YES OTHR11181 A4 Other 534.5 538.5 4.0 536.4 0.0 284.4 NO 536.7 0.0 395.1 NO 536.9 0.0 503.1 NO 537.0 0.0 542.2 NO OTHR11182 A4 Other 533.1 537.1 4.0 534.8 0.0 284.5 NO 535.0 0.0 395.2 NO 535.2 0.0 503.2 NO 535.2 0.0 542.3 NO OTHR11183 A4 Other 532.3 536.3 4.0 533.6 0.0 284.5 NO 533.8 0.0 395.2 NO 534.1 0.0 503.2 NO 534.1 0.0 542.3 NO OTHR11184 A4 Other 531.4 535.4 4.0 532.9 0.0 284.5 NO 533.2 0.0 395.2 NO 533.5 0.0 503.2 NO 533.6 0.0 542.3 NO OTHR11185 A4 Other 530.5 534.5 4.0 532.8 0.0 284.4 NO 533.1 0.0 395.2 NO 533.4 0.0 503.2 NO 533.4 0.0 542.3 NO OTHR11186 A4 Other 529.6 533.6 4.0 531.7 0.0 284.4 NO 531.9 0.0 395.2 NO 532.1 0.0 503.2 NO 532.2 0.0 542.3 NO OTHR11187 A4 Other 528.7 532.7 4.0 530.9 0.0 284.4 NO 531.2 0.0 395.2 NO 531.6 0.0 503.2 NO 531.7 0.0 542.3 NO OTHR11188 A4 Other 527.9 531.9 4.0 530.1 0.0 284.4 NO 530.5 0.0 395.2 NO 530.8 0.0 503.2 NO 530.9 0.0 542.3 NO OTHR11189 A4 Other 527.0 531.0 4.0 529.0 0.0 284.4 NO 529.2 0.0 395.2 NO 529.4 0.0 503.2 NO 529.5 0.0 542.3 NO OTHR11190 A4 Other 526.1 530.1 4.0 528.8 0.0 284.3 NO 529.0 0.0 395.2 NO 529.2 0.0 503.2 NO 529.2 0.0 542.3 NO OTHR11191 A4 Other 525.2 529.2 4.0 527.0 0.0 284.3 NO 527.3 0.0 395.2 NO 527.6 0.0 503.2 NO 527.7 0.0 542.3 NO OTHR11192 A4 Other 524.3 528.3 4.0 526.3 0.0 284.3 NO 526.6 0.0 395.2 NO 526.9 0.0 503.2 NO 527.0 0.0 542.3 NO OTHR11193 A4 Other 523.4 527.4 4.0 525.4 0.0 284.3 NO 525.6 0.0 395.2 NO 525.9 0.0 503.2 NO 526.0 0.0 542.3 NO OTHR11194 A4 Other 522.6 526.6 4.0 524.5 0.0 284.3 NO 524.8 0.0 395.2 NO 525.1 0.0 503.2 NO 525.1 0.0 542.3 NO OTHR11195 A4 Other 521.7 525.7 4.0 523.4 0.0 284.3 NO 523.8 0.0 395.2 NO 524.3 0.0 503.2 NO 524.3 0.0 542.3 NO OTHR11196 A4 Other 520.8 524.8 4.0 522.8 0.0 284.3 NO 523.2 0.0 395.2 NO 523.8 0.0 503.2 NO 523.8 0.0 542.3 NO OTHR11197 A4 Other 519.9 523.9 4.0 522.6 0.0 284.2 NO 523.0 0.0 395.1 NO 523.6 0.0 503.2 NO 523.7 0.0 542.3 NO OTHR11198 A4 Other 519.0 523.0 4.0 521.4 0.0 284.2 NO 521.6 0.0 395.1 NO 521.9 0.0 503.2 NO 521.9 0.0 542.3 NO OTHR11199 A4 Other 518.1 522.1 4.0 520.5 0.0 284.2 NO 520.8 0.0 395.1 NO 521.0 0.0 503.2 NO 521.1 0.0 542.3 NO OTHR11200 A4 Other 517.3 521.3 4.0 520.2 0.0 284.2 NO 520.4 0.0 395.1 NO 520.6 0.0 503.2 NO 520.7 0.0 542.3 NO OTHR11201 A4 Other 516.4 520.4 4.0 519.4 0.0 284.2 NO 519.7 0.0 395.1 NO 520.0 0.0 503.2 NO 520.1 0.0 542.3 NO OTHR11202 A4 Other 515.5 519.5 4.0 518.6 0.0 284.1 NO 519.0 0.0 395.1 NO 519.3 0.0 503.2 NO 519.3 0.0 542.3 NO OTHR11203 A4 Other 514.6 518.6 4.0 518.0 0.0 284.1 NO 518.5 0.0 395.1 NO 518.7 0.0 503.2 NO 518.8 0.0 542.3 NO OTHR11204 A4 Other 513.7 517.7 4.0 516.3 0.0 284.1 NO 516.6 0.0 395.1 NO 516.8 0.0 503.2 NO 516.9 0.0 542.3 NO OTHR11205 A4 Other 512.8 516.8 4.0 515.3 0.0 284.1 NO 515.5 0.0 395.1 NO 515.7 0.0 503.2 NO 515.7 0.0 542.3 NO OTHR11206 A4 Other 527.8 533.9 6.1 529.0 0.0 63.5 NO 529.4 0.0 114.9 NO 530.0 0.0 174.8 NO 532.3 0.0 197.8 NO OTHR11207 A4 Other 525.5 531.6 6.1 527.2 0.0 61.5 NO 527.7 0.0 114.9 NO 529.8 0.0 183.3 NO 532.2 0.0 210.7 NO OTHR11208 A4 Other 538.0 542.0 4.0 539.3 0.0 9.3 NO 539.8 0.0 16.8 NO 540.0 0.0 22.7 NO 540.1 0.0 25.4 NO OTHR11209 A4 Other 537.7 541.7 4.0 539.3 0.0 5.8 NO 539.7 0.0 14.0 NO 540.0 0.0 22.0 NO 540.0 0.0 24.8 NO OTHR11210 A4 Other 534.7 538.7 4.0 535.8 0.0 10.0 NO 536.3 0.0 25.6 NO 536.7 0.0 40.1 NO 536.8 0.0 45.6 NO OTHR11211 A4 Other 533.5 537.5 4.0 534.1 0.0 10.0 NO 534.4 0.0 25.1 NO 534.6 0.0 39.1 NO 534.7 0.0 45.1 NO OTHR11212 A4 Other 530.0 534.7 4.6 531.1 0.0 11.5 NO 531.5 0.0 28.3 NO 531.7 0.0 44.5 NO 531.7 0.0 51.4 NO OTHR11213 A4 Other 527.8 532.4 4.6 528.4 0.0 11.5 NO 528.6 0.0 28.1 NO 529.6 0.0 50.3 NO 530.4 0.0 57.4 NO OTHR11214 A4 Other 558.1 562.1 4.0 563.8 0.0 582.8 YES 565.2 0.0 916.9 YES 566.9 0.0 1211.7 YES 567.3 0.0 1272.3 YES OTHR11215 A4 Other 570.8 574.8 4.0 573.0 0.0 23.8 NO 573.7 0.0 40.4 NO 574.4 0.0 59.0 NO 574.8 0.0 66.8 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 98 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR11216 A4 Other 938.7 942.7 4.0 939.9 0.0 12.1 NO 940.3 0.0 19.5 NO 940.5 0.0 29.2 NO 940.6 0.0 33.1 NO OTHR11217 A4 Other 928.5 932.5 4.0 929.6 0.0 11.9 NO 929.8 0.0 19.3 NO 930.0 0.0 29.0 NO 930.1 0.0 32.8 NO OTHR11218 A4 Other 918.4 922.4 4.0 918.9 0.0 11.9 NO 919.0 0.0 19.1 NO 919.2 0.0 28.8 NO 919.2 0.0 32.6 NO OTHR11219 A4 Other 908.2 912.2 4.0 909.5 0.0 11.7 NO 910.0 0.0 18.9 NO 910.6 0.0 28.5 NO 910.8 0.0 32.3 NO OTHR11220 A4 Other 898.1 902.1 4.0 899.2 0.0 10.5 NO 899.4 0.0 16.9 NO 899.7 0.0 24.2 NO 899.8 0.0 28.1 NO OTHR11221 A4 Other 888.0 892.0 4.0 888.9 0.0 10.5 NO 889.1 0.0 16.9 NO 889.3 0.0 24.2 NO 889.4 0.0 28.1 NO OTHR11222 A4 Other 877.8 881.8 4.0 878.9 0.0 10.4 NO 879.2 0.0 16.8 NO 879.4 0.0 24.1 NO 879.5 0.0 28.0 NO OTHR11223 A4 Other 571.0 578.7 7.7 573.9 0.0 52.3 NO 574.4 0.0 95.3 NO 574.9 0.0 180.2 NO 575.1 0.0 202.5 NO OTHR11224 A4 Other 567.8 575.5 7.7 570.8 0.0 50.5 NO 571.6 0.0 90.5 NO 572.4 0.0 147.9 NO 572.8 0.0 172.1 NO OTHR11225 A4 Other 564.6 572.3 7.7 565.7 0.0 44.9 NO 566.0 0.0 84.7 NO 566.2 0.0 134.0 NO 566.3 0.0 155.9 NO OTHR11226 A4 Other 561.4 569.1 7.7 562.2 0.0 47.3 NO 562.4 0.0 88.6 NO 562.7 0.0 136.5 NO 562.7 0.0 157.5 NO OTHR11227 A4 Other 558.2 565.9 7.7 559.0 0.0 46.6 NO 559.2 0.0 87.1 NO 559.5 0.0 133.9 NO 559.6 0.0 152.6 NO OTHR11228 A4 Other 555.0 562.7 7.7 555.9 0.0 42.0 NO 556.3 0.0 78.2 NO 556.6 0.0 124.7 NO 556.7 0.0 144.4 NO OTHR11229 A4 Other 551.8 559.5 7.7 552.6 0.0 40.3 NO 552.8 0.0 76.3 NO 553.0 0.0 122.7 NO 553.1 0.0 141.6 NO OTHR11230 A4 Other 548.6 556.3 7.7 549.2 0.0 40.9 NO 549.4 0.0 77.3 NO 549.7 0.0 126.0 NO 549.8 0.0 145.6 NO OTHR11231 A4 Other 545.4 553.1 7.7 546.1 0.0 38.6 NO 546.3 0.0 74.7 NO 546.5 0.0 122.2 NO 546.5 0.0 140.6 NO OTHR11232 A4 Other 542.2 549.9 7.7 543.0 0.0 36.3 NO 543.2 0.0 68.7 NO 543.4 0.0 117.1 NO 543.5 0.0 135.5 NO OTHR11233 A4 Other 539.0 546.7 7.7 540.1 0.0 33.6 NO 540.5 0.0 62.6 NO 540.9 0.0 108.4 NO 541.1 0.0 127.9 NO OTHR11234 A4 Other 535.8 543.5 7.7 536.7 0.0 31.0 NO 537.0 0.0 59.2 NO 537.3 0.0 100.3 NO 537.3 0.0 117.9 NO OTHR11235 A4 Other 532.6 540.3 7.7 533.9 0.0 30.5 NO 534.4 0.0 58.0 NO 534.8 0.0 96.7 NO 535.0 0.0 115.8 NO OTHR11236 A4 Other 529.4 537.1 7.7 531.1 0.0 29.1 NO 531.5 0.0 53.9 NO 531.9 0.0 90.6 NO 532.1 0.0 107.1 NO OTHR11237 A4 Other 526.2 533.9 7.7 527.7 0.0 29.3 NO 528.1 0.0 54.1 NO 528.8 0.0 91.2 NO 529.2 0.0 106.9 NO OTHR11238 A4 Other 523.0 530.7 7.7 525.2 0.0 29.1 NO 525.6 0.0 53.9 NO 526.1 0.0 86.1 NO 526.3 0.0 102.8 NO OTHR11239 A4 Other 519.8 527.5 7.7 521.1 0.0 29.2 NO 521.5 0.0 53.9 NO 521.9 0.0 86.2 NO 522.0 0.0 100.0 NO OTHR11240 A4 Other 516.6 524.3 7.7 518.1 23.6 37.0 NO 518.5 46.3 70.4 NO 519.0 74.9 111.9 NO 519.2 86.9 129.8 NO OTHR11241 A4 Other 513.4 521.1 7.7 515.0 0.0 38.1 NO 515.5 0.0 69.6 NO 515.8 0.0 110.8 NO 515.8 0.0 126.9 NO OTHR11242 A4 Other 510.2 517.9 7.7 511.4 0.0 35.1 NO 511.6 0.0 67.8 NO 511.8 0.0 111.5 NO 511.9 0.0 127.3 NO OTHR11243 A4 Other 507.0 514.7 7.7 508.3 0.0 35.7 NO 508.6 0.0 67.4 NO 508.9 0.0 111.0 NO 508.9 0.0 126.6 NO OTHR11244 A4 Other 581.5 585.5 4.0 582.4 0.0 35.4 NO 582.5 0.0 61.4 NO 582.6 0.0 76.7 NO 582.6 0.0 83.1 NO OTHR11245 A4 Other 572.9 576.9 4.0 573.5 0.0 35.8 NO 573.7 0.0 63.0 NO 573.8 0.0 77.1 NO 573.8 0.0 83.5 NO OTHR11246 A4 Other 564.4 568.4 4.0 565.0 0.0 32.7 NO 565.1 0.0 60.0 NO 565.2 0.0 77.3 NO 565.2 0.0 83.6 NO OTHR11247 A4 Other 555.8 559.8 4.0 556.7 0.0 30.5 NO 556.9 0.0 57.7 NO 557.1 0.0 76.3 NO 557.1 0.0 82.9 NO OTHR11248 A4 Other 547.2 551.2 4.0 548.8 0.0 26.0 NO 549.1 0.0 52.3 NO 549.2 0.0 74.2 NO 549.3 0.0 81.0 NO OTHR11249 A4 Other 538.7 542.7 4.0 539.3 0.0 33.8 NO 539.4 0.0 47.3 NO 539.5 0.0 71.8 NO 539.5 0.0 79.1 NO OTHR11250 A4 Other 726.8 758.9 32.1 730.3 0.0 166.7 NO 730.9 0.0 315.2 NO 731.5 0.0 479.1 NO 731.7 0.0 554.2 NO OTHR11251 A4 Other 720.9 753.0 32.1 722.9 0.0 167.2 NO 723.3 0.0 314.4 NO 723.7 0.0 478.9 NO 723.8 0.0 553.8 NO OTHR11252 A4 Other 557.6 562.1 4.6 560.9 0.0 302.4 NO 563.1 0.0 495.8 NO 567.2 0.0 773.3 YES 568.9 0.0 822.6 YES OTHR11253 A4 Other 556.2 560.7 4.6 559.7 0.0 302.3 NO 562.9 0.0 494.6 YES 567.2 0.0 757.7 YES 568.9 0.0 798.7 YES OTHR11254 A4 Other 554.7 559.3 4.6 559.6 0.0 297.3 NO 562.9 0.0 476.8 YES 567.2 0.0 703.1 YES 568.9 0.0 735.5 YES OTHR11255 A4 Other 553.3 557.9 4.6 559.4 0.0 290.1 YES 562.9 0.0 440.7 YES 567.2 0.0 603.3 YES 568.9 0.0 630.7 YES OTHR11256 A4 Other 826.0 830.0 4.0 828.3 0.0 56.3 NO 828.7 0.0 89.6 NO 829.0 0.0 142.3 NO 829.2 0.0 170.7 NO OTHR11257 A4 Other 821.0 825.0 4.0 822.2 0.0 56.2 NO 822.5 0.0 89.6 NO 822.7 0.0 141.9 NO 822.7 0.0 170.4 NO OTHR11258 A4 Other 816.1 820.1 4.0 817.1 0.0 56.2 NO 817.3 0.0 89.5 NO 817.6 0.0 144.1 NO 817.7 0.0 172.6 NO OTHR11259 A4 Other 811.2 815.2 4.0 812.2 0.0 56.1 NO 812.5 0.0 89.3 NO 812.8 0.0 141.6 NO 812.9 0.0 170.1 NO OTHR11260 A4 Other 806.2 810.2 4.0 808.2 0.0 56.0 NO 808.6 0.0 89.1 NO 808.9 0.0 140.3 NO 809.1 0.0 168.0 NO OTHR11261 A4 Other 629.9 642.8 12.9 631.1 0.0 253.4 NO 631.2 0.0 325.2 NO 631.3 0.0 442.0 NO 631.4 0.0 471.7 NO OTHR11262 A4 Other 621.8 634.7 12.9 623.7 0.0 253.4 NO 623.9 0.0 325.2 NO 624.2 0.0 442.0 NO 624.3 0.0 471.7 NO OTHR11263 A4 Other 613.8 626.7 12.9 616.4 0.0 253.4 NO 616.6 0.0 325.2 NO 616.9 0.0 442.0 NO 616.9 0.0 471.7 NO OTHR11264 A4 Other 650.0 654.0 4.0 654.0 0.0 261.6 NO 654.2 0.0 360.5 NO 659.8 0.0 631.6 YES 661.7 0.0 716.7 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 99 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR11265 A4 Other 647.6 651.6 4.0 650.7 0.0 263.5 NO 653.5 0.0 360.5 YES 659.8 0.0 641.9 YES 661.7 0.0 708.5 YES OTHR11266 A4 Other 789.9 821.7 31.8 790.5 0.0 114.7 NO 790.7 0.0 205.9 NO 790.9 0.0 316.5 NO 790.9 0.0 368.0 NO OTHR11267 A4 Other 778.4 810.2 31.8 779.7 0.0 114.0 NO 780.2 0.0 205.0 NO 780.7 0.0 315.1 NO 780.9 0.0 366.4 NO OTHR11268 A4 Other 767.0 798.8 31.8 769.4 0.0 112.7 NO 769.8 0.0 203.3 NO 770.2 0.0 312.4 NO 770.3 0.0 363.5 NO OTHR11269 A4 Other 755.6 787.4 31.8 757.2 0.0 112.5 NO 757.6 0.0 203.2 NO 758.0 0.0 312.3 NO 758.2 0.0 363.6 NO OTHR11270 A4 Other 744.1 775.9 31.8 746.1 0.0 112.3 NO 746.8 0.0 202.7 NO 747.5 0.0 311.6 NO 747.6 0.0 362.7 NO OTHR11271 A4 Other 559.5 563.6 4.1 564.4 0.0 586.3 NO 565.5 0.0 927.3 YES 567.0 0.0 1231.1 YES 567.4 0.0 1245.1 YES OTHR11272 A4 Other 570.5 574.5 4.0 572.1 0.0 17.9 NO 572.3 0.0 24.4 NO 572.6 0.0 29.8 NO 572.8 0.0 31.8 NO CBIN11443 A4 CI10536 Curb Inlet 551.9 555.9 4.0 551.9 0.0 0.0 NO 551.9 0.0 0.0 NO 552.3 0.0 1.0 NO 552.6 0.0 1.6 NO CBIN11444 A4 CI10537 Curb Inlet 550.8 554.8 4.0 551.3 0.0 0.4 NO 551.7 0.0 0.8 NO 552.2 0.0 1.7 NO 552.6 0.0 2.8 NO CLEN11129 A4 ZCO10796 Cleanout 550.1 554.1 4.0 551.3 0.0 4.1 NO 551.7 0.0 6.7 NO 552.2 0.0 9.9 NO 552.6 0.0 11.2 NO INLT10739 A4 ZINL10797 Inlet 556.3 560.3 4.0 556.8 4.2 4.2 NO 557.0 6.8 6.8 NO 557.2 10.0 10.0 NO 557.2 11.3 11.3 NO CBIN11445 A4 CI0619 Curb Inlet 554.8 563.9 9.1 555.4 2.6 7.7 NO 555.5 4.0 12.2 NO 555.7 5.9 19.6 NO 555.8 6.6 19.8 NO CLEN11130 A4 ZCO12069 Cleanout 554.2 564.3 10.1 557.2 2.9 114.1 NO 559.2 4.6 136.9 NO 564.4 6.7 172.5 NO 564.5 7.5 177.9 NO CLEN11131 A4 ZCO12240 Cleanout 556.1 565.2 9.1 557.2 1.6 5.6 NO 565.2 2.6 8.9 NO 565.2 3.8 15.1 NO 565.2 4.2 15.4 NO CBIN11446 B CI0602 Curb Inlet 970.5 977.2 6.7 970.5 0.0 0.0 NO 970.7 0.0 0.3 NO 979.4 0.0 14.5 YES 984.8 0.0 17.5 YES CLEN11132 B ZCO13160 Cleanout 839.0 854.5 15.6 841.2 5.7 111.9 NO 842.2 10.4 185.7 NO 854.6 16.3 324.5 NO 854.7 18.8 356.4 NO CLEN11133 B ZCO10130 Cleanout 843.9 858.9 15.1 845.8 17.8 89.4 NO 846.5 30.6 147.8 NO 859.0 46.0 267.2 NO 860.4 52.4 297.2 YES CLEN11134 B ZCO10131 Cleanout 1104.9 1120.5 15.6 1106.4 0.0 90.6 NO 1106.8 0.0 144.6 NO 1107.4 0.0 212.6 NO 1107.6 0.0 235.3 NO CLEN11135 B ZCO11581 Cleanout 1013.9 1031.1 17.2 1015.4 1.5 102.4 NO 1015.9 2.4 163.6 NO 1016.6 3.6 236.0 NO 1017.1 4.0 267.9 NO CLEN11136 B ZCO11582 Cleanout 934.5 950.2 15.7 936.4 0.0 142.1 NO 937.1 0.0 234.9 NO 950.4 0.0 384.6 NO 952.4 0.0 393.2 YES CBIN11447 B CI1090 Curb Inlet 1069.6 1085.3 15.7 1071.1 2.2 92.3 NO 1071.5 3.5 147.3 NO 1072.1 5.2 212.2 NO 1072.3 5.9 240.1 NO CBIN11448 B CI1089 Curb Inlet 1080.7 1085.6 4.9 1080.7 0.0 0.0 NO 1080.7 0.0 0.0 NO 1080.7 0.0 0.0 NO 1080.7 0.0 0.0 NO CLEN11137 B ZCO10132 Cleanout 966.4 976.4 9.9 967.8 0.9 104.1 NO 968.2 1.4 166.5 NO 968.7 2.0 239.2 NO 969.5 2.3 272.5 NO CBIN11449 B CI1303 Curb Inlet 911.6 920.8 9.2 913.5 2.0 145.4 NO 914.5 3.1 246.1 NO 920.8 4.5 352.3 NO 920.9 5.1 379.1 NO CBIN11450 B CI0752 Curb Inlet 886.6 895.8 9.2 886.6 0.0 0.0 NO 886.6 0.0 0.0 NO 886.6 0.0 0.0 NO 886.6 0.0 0.0 NO CBIN11451 B CI1100 Curb Inlet 871.3 884.7 13.4 871.3 0.0 0.0 NO 871.3 0.0 0.0 NO 871.3 0.0 0.0 NO 871.3 0.0 0.0 NO INLT10740 B ZINL13315 Inlet 817.9 827.4 9.5 819.4 0.0 195.5 NO 820.0 0.0 352.4 NO 820.3 0.0 456.9 NO 820.4 0.0 482.9 NO CLEN11138 B ZCO13075 Cleanout 846.4 854.5 8.1 847.6 1.4 195.5 NO 848.1 2.2 336.9 NO 848.4 3.3 457.0 NO 848.4 3.7 482.9 NO OTHR11273 B ZOTHER10000Other 886.5 893.8 7.3 886.5 0.0 0.0 NO 886.5 0.0 0.0 NO 886.5 0.0 0.0 NO 886.5 0.0 0.0 NO CLEN11139 B ZCO11899 Cleanout 882.6 894.4 11.8 884.1 3.6 193.1 NO 884.6 5.8 333.3 NO 885.0 8.5 451.9 NO 885.0 9.6 476.2 NO CLEN11140 B ZCO12305 Cleanout 894.6 907.3 12.8 894.9 1.7 3.3 NO 895.0 2.6 5.3 NO 895.1 3.9 7.8 NO 895.1 4.3 8.8 NO CLEN11141 B ZCO11900 Cleanout 879.2 890.6 11.4 879.7 0.0 4.0 NO 879.9 0.0 7.3 NO 880.1 0.0 11.2 NO 880.1 0.0 12.8 NO INLT10741 B ZINL11901 Inlet 896.7 901.4 4.8 896.9 2.0 2.0 NO 897.0 4.1 4.1 NO 897.1 6.4 6.4 NO 897.2 7.4 7.4 NO CLEN11142 B ZCO12310 Cleanout 895.1 907.1 12.0 895.5 1.6 5.7 NO 895.7 2.5 9.0 NO 895.8 3.6 13.1 NO 895.8 4.1 14.7 NO CBIN11452 B CI0952 Curb Inlet 903.2 914.9 11.7 903.6 0.0 4.2 NO 903.7 0.0 6.6 NO 903.8 0.0 9.6 NO 903.8 0.0 10.7 NO CLEN11143 B ZCO11198 Cleanout 835.6 850.6 15.1 835.9 0.0 3.2 NO 836.0 0.0 5.2 NO 836.1 0.0 7.7 NO 836.1 0.0 8.7 NO CLEN11144 B ZCO12313 Cleanout 854.9 867.3 12.5 855.3 1.1 3.6 NO 855.4 1.7 5.9 NO 855.6 2.5 8.7 NO 856.1 2.8 9.9 NO CLEN11145 B CO0269 Cleanout 834.2 844.2 10.0 835.0 2.5 17.9 NO 835.3 4.1 29.0 NO 835.6 5.9 42.0 NO 835.9 6.7 51.6 NO CLEN11146 B CO0268 Cleanout 840.3 850.8 10.5 841.3 3.2 15.6 NO 841.7 5.1 25.4 NO 850.8 7.3 37.7 NO 850.9 8.2 48.7 NO CLEN11147 B ZCO11583 Cleanout 858.3 864.8 6.6 858.6 4.0 4.0 NO 858.7 6.6 6.6 NO 858.8 9.9 9.9 NO 858.9 11.2 11.2 NO INLT10742 B ZINL12314 Inlet 860.6 865.1 4.5 860.6 0.0 0.0 NO 860.6 0.0 0.0 NO 860.6 0.0 0.0 NO 860.6 0.0 0.0 NO CLEN11148 B ZCO12315 Cleanout 899.1 913.5 14.4 899.7 0.0 13.9 NO 899.9 0.0 22.7 NO 900.1 0.0 33.5 NO 900.2 0.0 37.9 NO CLEN11149 B ZCO11107 Cleanout 955.3 968.6 13.3 956.4 2.1 28.5 NO 956.9 3.3 45.5 NO 968.6 4.8 66.1 NO 968.7 5.4 68.8 NO CLEN11150 B ZCO11108 Cleanout 940.3 954.6 14.2 941.7 2.8 45.1 NO 942.2 4.7 72.2 NO 942.7 7.0 100.0 NO 942.8 8.0 106.7 NO CLEN11151 B ZCO12316 Cleanout 937.0 956.1 19.1 937.7 4.0 48.9 NO 937.9 6.5 78.2 NO 938.0 9.6 108.1 NO 938.1 10.9 114.1 NO CLEN11152 B ZCO10133 Cleanout 979.4 987.9 8.5 980.0 5.3 9.8 NO 980.2 8.3 15.7 NO 980.5 12.1 23.1 NO 980.7 13.6 26.2 NO OTHR11274 B ZOTHER10001Other 906.7 916.0 9.3 908.9 0.0 190.1 NO 910.0 0.0 325.3 NO 916.0 0.0 447.4 NO 916.0 0.0 469.9 NO OTHR11275 B ZOTHER10002Other 894.3 908.5 14.2 896.0 0.0 190.2 NO 896.8 0.0 325.8 NO 897.3 0.0 447.4 NO 897.5 0.0 468.3 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 100 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11453 B CI0720 Curb Inlet 940.9 954.0 13.1 942.6 1.3 29.7 NO 943.2 2.3 47.5 NO 943.6 3.5 65.7 NO 943.8 3.9 68.2 NO CLEN11153 B ZCO11105 Cleanout 863.1 875.7 12.6 863.9 0.9 18.7 NO 864.1 1.4 30.1 NO 864.4 2.0 44.4 NO 875.7 2.3 49.8 NO CBIN11454 B CI0267 Curb Inlet 821.1 831.1 10.0 821.8 10.4 27.3 NO 822.0 16.4 44.0 NO 822.2 23.9 63.0 NO 822.3 26.9 73.8 NO CLEN11154 B ZCO11902 Cleanout 882.8 894.9 12.0 882.8 0.0 0.0 NO 882.8 0.0 0.0 NO 882.8 0.0 0.0 NO 882.8 0.0 0.0 NO CLEN11155 B ZCO11903 Cleanout 865.0 875.4 10.4 865.0 0.0 0.0 NO 865.0 0.0 0.0 NO 865.0 0.0 0.0 NO 875.4 0.0 6.4 NO CBIN11455 B CI10000 Curb Inlet 830.3 844.6 14.3 831.3 12.1 15.1 NO 831.6 20.4 25.3 NO 831.9 30.4 37.7 NO 832.1 34.6 42.7 NO CBIN11456 B CI10001 Curb Inlet 831.1 844.1 13.0 831.6 0.0 3.2 NO 831.8 0.0 5.2 NO 832.1 0.0 7.7 NO 832.2 0.0 8.7 NO CBIN11457 B CI10002 Curb Inlet 763.7 782.8 19.0 765.7 11.6 149.0 NO 766.4 23.0 248.8 NO 767.0 35.8 344.6 NO 767.3 41.2 392.0 NO CBIN11458 B CI1082 Curb Inlet 1052.5 1057.4 4.9 1052.5 0.0 0.0 NO 1052.5 0.0 0.0 NO 1052.5 0.0 0.0 NO 1052.5 0.0 0.0 NO CBIN11459 B CI1083 Curb Inlet 1042.0 1057.0 15.0 1043.4 3.2 94.9 NO 1043.8 5.3 151.6 NO 1044.3 7.9 218.9 NO 1044.6 9.0 247.6 NO CBIN11460 B CI1099 Curb Inlet 1003.8 1008.6 4.8 1003.8 0.0 0.0 NO 1003.8 0.0 0.0 NO 1003.8 0.0 0.0 NO 1003.8 0.0 0.0 NO CBIN11461 B CI1067 Curb Inlet 993.1 1008.5 15.4 994.6 1.3 103.5 NO 995.1 2.0 165.2 NO 995.6 2.9 238.8 NO 995.8 3.3 270.1 NO CBIN11462 B CI1084 Curb Inlet 952.2 957.0 4.8 952.2 0.0 0.0 NO 952.2 0.0 0.0 NO 952.4 0.0 2.1 NO 957.4 0.0 7.5 NO CBIN11463 B CI1085 Curb Inlet 938.9 955.2 16.3 940.8 3.1 132.4 NO 941.5 4.8 218.9 NO 955.3 7.1 339.6 NO 957.2 7.9 360.9 YES CLEN11156 B ZCO12318 Cleanout 915.7 928.1 12.4 918.1 2.3 143.8 NO 928.1 3.6 237.7 NO 928.2 5.3 342.4 NO 930.6 5.9 355.8 YES CBIN11464 B CI10006 Curb Inlet 841.8 855.3 13.5 842.4 0.0 11.7 NO 842.7 0.0 19.4 NO 855.4 0.0 53.2 NO 855.7 0.0 65.6 NO CBIN11465 B CI10008 Curb Inlet 829.5 843.3 13.8 830.2 7.2 22.2 NO 830.4 12.5 37.6 NO 830.6 19.0 56.4 NO 830.7 21.7 64.1 NO CBIN11466 B CI0064 Curb Inlet 869.7 879.2 9.5 870.2 5.7 5.7 NO 870.3 9.2 9.2 NO 870.5 13.6 13.6 NO 870.6 15.4 15.4 NO CBIN11467 B CI1212 Curb Inlet 875.0 884.4 9.4 875.4 4.4 4.4 NO 875.6 6.9 6.9 NO 875.7 10.1 10.1 NO 875.8 11.4 11.4 NO CBIN11468 B CI0562 Curb Inlet 880.9 892.8 11.9 881.5 0.0 4.1 NO 881.7 0.0 7.4 NO 882.0 0.0 11.3 NO 882.1 0.0 12.9 NO CLEN11157 B ZCO10134 Cleanout 857.5 870.5 12.9 858.6 4.8 30.8 NO 858.9 7.7 51.2 NO 859.7 11.4 76.0 NO 870.5 12.9 94.7 NO CLEN11158 B ZCO10002 Cleanout 867.0 879.6 12.6 867.9 0.0 12.5 NO 868.1 0.0 20.3 NO 868.5 0.0 30.0 NO 868.7 0.0 34.0 NO CBIN11469 B CI0953 Curb Inlet 875.9 887.8 11.9 875.9 0.0 0.0 NO 875.9 0.0 0.0 NO 876.5 0.0 0.7 NO 887.8 0.0 2.8 NO CBIN11470 B CI0564 Curb Inlet 876.6 889.4 12.8 877.2 6.3 9.2 NO 877.4 10.0 15.9 NO 877.7 14.7 23.7 NO 878.1 16.6 27.4 NO CBIN11471 B CI0959 Curb Inlet 846.3 859.5 13.1 846.3 0.0 0.0 NO 846.6 0.0 0.2 NO 859.8 0.0 55.3 NO 860.9 0.0 65.5 YES CBIN11472 B CI0951 Curb Inlet 874.9 886.9 12.0 875.6 1.3 13.9 NO 875.8 2.0 22.4 NO 876.0 2.9 33.0 NO 876.1 3.3 37.4 NO CBIN11473 B CI0960 Curb Inlet 876.0 888.1 12.2 877.1 0.0 7.0 NO 877.7 0.0 11.6 NO 878.9 0.0 17.3 NO 879.5 0.0 19.7 NO CLEN11159 B ZCO11006 Cleanout 876.4 888.9 12.5 876.7 0.0 3.3 NO 876.8 0.0 5.3 NO 876.9 0.0 7.7 NO 876.9 0.0 8.8 NO CBIN11474 B CI10009 Curb Inlet 906.1 917.0 10.9 906.4 1.7 1.7 NO 906.4 2.8 2.8 NO 906.5 4.1 4.1 NO 906.5 4.6 4.6 NO CLEN11160 B ZCO10135 Cleanout 778.2 793.1 14.9 779.9 1.7 116.2 NO 780.4 2.6 191.3 NO 780.9 3.8 255.3 NO 781.1 4.3 286.4 NO CLEN11161 B ZCO10136 Cleanout 801.8 816.8 15.0 803.3 1.9 114.9 NO 803.7 3.0 189.1 NO 804.1 4.4 251.4 NO 804.2 5.0 283.2 NO CBIN11475 B CI10720 Curb Inlet 840.9 855.4 14.5 841.6 2.6 6.1 NO 842.2 4.2 9.8 NO 855.5 6.1 41.5 NO 855.8 6.8 48.8 NO CBIN11476 B CI0348 Curb Inlet 845.4 857.4 12.0 845.4 0.0 0.0 NO 845.5 0.0 0.1 NO 846.1 0.0 0.8 NO 857.5 0.0 12.6 NO CBIN11477 B CI0603 Curb Inlet 923.0 935.8 12.9 923.6 3.7 14.0 NO 923.7 5.9 22.7 NO 923.9 8.6 33.5 NO 924.0 9.7 37.9 NO CBIN11478 B CI0020 Curb Inlet 933.3 946.2 12.9 933.9 10.4 10.4 NO 934.0 17.0 17.0 NO 934.2 25.1 25.1 NO 934.3 28.4 28.4 NO CBIN11479 B CI0492 Curb Inlet 994.3 1007.8 13.6 995.0 0.0 18.5 NO 995.2 0.0 30.0 NO 995.5 0.0 43.8 NO 995.9 0.0 50.2 NO CBIN11480 B CI0888 Curb Inlet 1012.1 1023.9 11.9 1012.6 5.3 5.3 NO 1012.8 8.5 8.5 NO 1013.0 12.5 12.5 NO 1013.1 14.1 14.1 NO CBIN11481 B CI0491 Curb Inlet 1021.8 1033.8 12.0 1022.3 0.0 7.6 NO 1022.5 0.0 12.3 NO 1022.7 0.0 17.8 NO 1022.8 0.0 20.5 NO CBIN11482 B CI0022 Curb Inlet 1029.5 1043.9 14.4 1030.1 5.6 5.6 NO 1030.3 9.2 9.2 NO 1030.5 13.7 13.7 NO 1030.7 15.6 15.6 NO CLEN11162 B ZCO12320 Cleanout 953.7 963.0 9.3 954.6 1.6 11.2 NO 954.9 2.5 18.1 NO 963.1 3.6 26.6 NO 964.2 4.1 29.7 YES CBIN11483 B CI10010 Curb Inlet 825.4 840.2 14.8 827.0 0.9 113.2 NO 827.5 1.4 186.4 NO 827.9 2.0 255.6 NO 828.2 2.2 291.1 NO CBIN11484 B CI0606 Curb Inlet 856.2 872.1 15.9 857.5 0.0 27.1 NO 857.9 0.0 44.2 NO 858.4 0.0 65.0 NO 872.1 0.0 76.8 NO INLT10743 B ZINL12321 Inlet 902.3 906.5 4.2 902.3 0.0 0.0 NO 902.3 0.0 0.0 NO 902.3 0.0 0.0 NO 902.3 0.0 0.0 NO OTLT10197 B OUT10212 Outlet 723.7 730.2 6.5 724.2 0.0 149.2 NO 724.3 0.0 249.2 NO 724.4 0.0 345.4 NO 724.5 0.0 392.7 NO OTHR11276 B ZOTHER10003Other 706.8 711.4 4.6 707.1 2.6 2.6 NO 707.3 7.4 7.4 NO 707.5 12.9 12.9 NO 707.6 15.2 15.2 NO CLEN11163 B ZCO11880 Cleanout 1207.4 1221.5 14.2 1208.2 9.4 29.9 NO 1208.4 15.4 53.5 NO 1208.7 22.9 80.5 NO 1208.8 26.0 91.4 NO CBIN11485 B CI1116 Curb Inlet 1195.0 1209.7 14.8 1195.7 0.0 29.9 NO 1195.9 0.0 53.6 NO 1196.1 0.0 80.6 NO 1196.1 0.0 91.6 NO CBIN11486 B CI1123 Curb Inlet 1185.9 1210.1 24.2 1186.5 6.4 36.1 NO 1186.8 10.7 63.8 NO 1186.9 16.1 95.8 NO 1187.0 18.3 109.1 NO OTHR11277 B ZOTHER10004Other 1093.7 1110.8 17.1 1094.6 0.0 24.8 NO 1094.9 0.0 39.4 NO 1095.2 0.0 57.6 NO 1095.4 0.0 64.9 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 101 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11487 B CI1121 Curb Inlet 1122.9 1142.2 19.2 1123.5 1.7 24.8 NO 1123.6 2.7 39.4 NO 1123.7 4.0 57.6 NO 1123.8 4.5 65.0 NO CBIN11488 B CI1118 Curb Inlet 1129.8 1141.8 12.0 1130.5 15.8 23.1 NO 1130.7 24.9 36.6 NO 1130.9 36.3 53.5 NO 1130.9 40.9 60.4 NO CBIN11489 B CI1120 Curb Inlet 1118.6 1125.6 7.0 1118.6 0.0 0.0 NO 1118.6 0.0 0.0 NO 1118.6 0.0 0.0 NO 1118.6 0.0 0.0 NO CBIN11490 B CI1119 Curb Inlet 1110.7 1125.3 14.6 1110.7 0.0 0.0 NO 1110.7 0.0 0.0 NO 1110.7 0.0 0.0 NO 1110.7 0.0 0.0 NO INLT10744 B ZINL13158 Inlet 785.8 797.3 11.5 786.1 2.9 2.9 NO 786.3 6.1 6.1 NO 786.5 9.6 9.6 NO 786.5 11.1 11.1 NO INLT10745 B ZINL11897 Inlet 808.6 817.5 8.9 808.6 0.0 0.0 NO 808.6 0.0 0.0 NO 808.6 0.0 0.0 NO 808.6 0.0 0.0 NO INLT10746 B ZINL11898 Inlet 1169.4 1174.9 5.4 1169.4 0.0 0.0 NO 1169.4 0.0 0.0 NO 1169.4 0.0 0.0 NO 1169.4 0.0 0.0 NO CLEN11164 B ZCO12322 Cleanout 898.0 906.4 8.5 898.0 0.0 0.0 NO 898.0 0.0 0.0 NO 898.0 0.0 0.0 NO 898.0 0.0 0.0 NO CLEN11165 B ZCO12323 Cleanout 902.5 912.5 10.0 904.3 0.0 190.1 NO 905.0 0.0 321.4 NO 905.7 0.0 447.4 NO 905.8 0.0 469.9 NO OTLT10198 B OUT10215 Outlet 780.7 786.2 5.5 780.8 0.0 2.9 NO 780.8 0.0 6.1 NO 780.8 0.0 9.5 NO 780.8 0.0 11.0 NO CLEN11166 B ZCO10140 Cleanout 759.4 774.4 15.1 760.4 0.0 149.2 NO 760.7 0.0 249.2 NO 760.9 0.0 345.4 NO 761.0 0.0 392.7 NO CLEN11167 B ZCO11110 Cleanout 888.7 900.1 11.4 889.0 0.0 2.0 NO 889.1 0.0 4.1 NO 889.3 0.0 6.4 NO 889.3 0.0 7.4 NO CLEN11168 B ZCO12324 Cleanout 883.8 896.0 12.2 884.4 2.3 4.2 NO 884.7 3.7 7.6 NO 884.9 5.4 11.6 NO 885.0 6.0 13.2 NO CLEN11169 B ZCO12325 Cleanout 800.9 815.7 14.7 801.6 1.0 23.1 NO 801.8 1.6 39.0 NO 802.0 2.4 58.5 NO 802.1 2.6 66.6 NO CLEN11170 B ZCO10141 Cleanout 770.1 784.6 14.5 770.9 1.6 24.5 NO 771.1 2.5 41.3 NO 771.4 3.6 61.8 NO 771.5 4.1 70.4 NO CBIN11491 B CI0347 Curb Inlet 844.2 855.8 11.6 845.1 8.7 12.7 NO 845.4 14.2 20.8 NO 846.0 21.2 31.0 NO 855.8 24.0 48.0 NO CLEN11171 B ZCO11584 Cleanout 831.6 847.0 15.4 833.6 0.0 112.2 NO 834.4 0.0 184.7 NO 847.0 0.0 253.4 NO 847.0 0.0 286.6 NO CLEN11172 B ZCO11585 Cleanout 875.6 891.3 15.7 876.5 13.7 27.1 NO 876.8 22.3 44.1 NO 877.0 32.9 65.2 NO 877.3 37.3 74.3 NO CLEN11173 B ZCO11586 Cleanout 852.9 869.1 16.2 854.0 1.0 42.0 NO 854.4 1.6 68.0 NO 856.3 2.3 99.5 NO 869.2 2.6 142.7 NO CLEN11174 B ZCO11587 Cleanout 969.3 985.2 15.9 970.3 8.6 26.6 NO 970.6 13.7 43.0 NO 985.2 20.0 65.2 NO 985.3 22.6 72.8 NO CLEN11175 B ZCO11588 Cleanout 874.0 890.3 16.4 875.2 4.7 13.9 NO 875.6 7.9 23.7 NO 876.4 11.8 35.4 NO 885.1 13.4 40.3 NO CLEN11176 B ZCO12326 Cleanout 873.4 891.3 17.9 874.7 0.0 13.9 NO 875.3 0.0 23.7 NO 876.1 0.0 33.8 NO 890.5 0.0 39.4 NO CLEN11177 B ZCO12327 Cleanout 852.1 865.7 13.6 853.2 0.0 30.9 NO 853.5 0.0 51.3 NO 865.7 0.0 77.3 NO 865.8 0.0 91.0 NO CLEN11178 B ZCO12328 Cleanout 946.8 956.4 9.6 947.6 1.8 12.9 NO 947.8 2.8 20.4 NO 956.4 4.1 30.1 NO 956.4 4.6 30.8 NO CLEN11179 B ZCO11503 Cleanout 788.3 797.0 8.7 789.9 0.9 221.7 NO 790.6 1.5 386.9 NO 791.1 2.3 514.4 NO 791.4 2.6 556.1 NO CLEN11180 B ZCO11500 Cleanout 1213.2 1226.8 13.6 1213.2 0.0 0.0 NO 1213.2 0.0 0.0 NO 1213.2 0.0 0.0 NO 1213.2 0.0 0.0 NO CLEN11181 B ZCO11501 Cleanout 700.5 716.5 16.0 700.7 0.0 2.6 NO 700.9 0.0 7.4 NO 701.0 0.0 12.9 NO 701.0 0.0 15.2 NO OTLT10199 B OUT10000 Outlet 665.8 669.8 4.0 665.8 0.0 2.6 NO 665.8 0.0 7.4 NO 665.8 0.0 12.9 NO 665.8 0.0 15.2 NO CBIN11492 B CI1117 Curb Inlet 1163.6 1175.4 11.8 1164.1 3.0 7.8 NO 1164.2 4.7 12.3 NO 1164.4 6.8 18.1 NO 1164.4 7.7 20.4 NO CBIN11493 B CI1122 Curb Inlet 1166.9 1175.6 8.7 1166.9 0.0 0.0 NO 1166.9 0.0 0.0 NO 1166.9 0.0 0.0 NO 1166.9 0.0 0.0 NO CBIN11494 B CI1124 Curb Inlet 1229.8 1239.4 9.7 1229.8 0.0 0.0 NO 1229.8 0.0 0.0 NO 1229.8 0.0 0.0 NO 1229.8 0.0 0.0 NO CLEN11182 B ZCO12329 Cleanout 1150.0 1159.7 9.7 1150.4 0.0 7.7 NO 1150.6 0.0 12.3 NO 1150.7 0.0 18.0 NO 1150.8 0.0 20.3 NO CBIN11495 B CI1115 Curb Inlet 1225.9 1239.2 13.3 1225.9 0.0 0.0 NO 1225.9 0.0 0.0 NO 1225.9 0.0 0.0 NO 1225.9 0.0 0.0 NO OTLT10200 B ZINL12330 Outlet 1092.4 1096.4 4.0 1094.1 0.0 24.8 NO 1094.4 0.0 39.5 NO 1094.7 0.0 57.7 NO 1094.9 0.0 65.1 NO CBIN11496 B CI10011 Curb Inlet 1176.3 1187.8 11.5 1176.8 0.0 2.3 NO 1177.0 0.0 3.7 NO 1177.1 0.0 5.5 NO 1177.2 0.0 6.2 NO CBIN11497 B CI1158 Curb Inlet 701.9 712.2 10.3 702.6 3.8 3.8 NO 702.8 6.4 6.4 NO 703.1 9.6 9.6 NO 703.2 10.9 10.9 NO CBIN11498 B CI10012 Curb Inlet 867.2 881.4 14.2 867.5 2.7 2.7 NO 867.6 4.3 4.3 NO 867.7 6.4 6.4 NO 867.8 7.3 7.3 NO CBIN11499 B CI1238 Curb Inlet 880.6 890.5 9.9 880.6 0.0 0.0 NO 880.6 0.0 0.0 NO 880.6 0.0 0.0 NO 880.6 0.0 0.0 NO CBIN11500 B CI0719 Curb Inlet 946.1 954.3 8.3 946.1 0.0 0.0 NO 946.1 0.0 0.0 NO 946.1 0.0 0.0 NO 946.1 0.0 0.0 NO CBIN11501 B CI10693 Curb Inlet 1018.7 1022.7 4.0 1019.4 7.4 7.4 NO 1019.7 12.0 12.0 NO 1022.7 17.8 17.8 NO 1022.7 20.1 20.1 NO CBIN11502 B CI0529 Curb Inlet 870.7 882.5 11.8 871.3 5.4 5.4 NO 871.4 8.7 8.7 NO 871.6 12.7 12.7 NO 871.7 14.4 14.4 NO CBIN11503 B CI10013 Curb Inlet 845.5 858.1 12.6 846.1 11.7 11.7 NO 846.3 19.4 19.4 NO 858.2 29.0 29.0 NO 858.3 32.9 32.9 NO CBIN11504 B CI0601 Curb Inlet 987.8 999.1 11.3 988.3 4.6 4.6 NO 988.4 7.6 7.6 NO 988.6 11.3 11.3 NO 988.6 12.8 12.8 NO CBIN11505 B CI0947 Curb Inlet 906.7 920.4 13.7 907.2 4.2 4.2 NO 907.3 6.6 6.6 NO 907.4 9.6 9.6 NO 907.5 10.8 10.8 NO CBIN11506 B CI0342 Curb Inlet 882.2 891.5 9.3 882.6 7.0 7.0 NO 882.7 11.6 11.6 NO 882.9 17.3 17.3 NO 882.9 19.7 19.7 NO CLEN11183 B ZCO11007 Cleanout 1008.3 1022.3 14.0 1009.1 5.9 18.5 NO 1009.3 9.6 29.9 NO 1009.6 14.2 43.8 NO 1009.8 16.1 50.4 NO CLEN11184 B ZCO11008 Cleanout 1024.9 1040.7 15.8 1025.6 2.0 7.6 NO 1025.9 3.2 12.3 NO 1026.3 4.6 18.3 NO 1040.7 5.2 20.5 NO CBIN11507 B CI1231 Curb Inlet 860.3 871.9 11.6 861.0 7.7 7.7 NO 861.3 13.7 13.7 NO 861.6 20.9 20.9 NO 872.0 23.9 26.3 NO OTHR11278 B ZOTHER10007Other 1176.0 1186.0 10.0 1176.4 2.6 4.9 NO 1176.5 4.1 7.8 NO 1176.7 6.1 11.5 NO 1176.7 6.9 13.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 102 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN11185 B ZCO12334 Cleanout 770.5 784.0 13.5 770.8 0.0 4.5 NO 770.9 0.0 7.4 NO 771.0 0.0 11.2 NO 771.0 0.0 12.7 NO CLEN11186 B ZCO10144 Cleanout 792.7 806.8 14.1 793.0 2.3 2.3 NO 793.1 3.8 3.8 NO 793.2 5.8 5.8 NO 793.2 6.6 6.6 NO CLEN11187 B ZCO10145 Cleanout 776.0 783.4 7.4 776.5 2.3 4.5 NO 776.6 3.8 7.4 NO 776.8 5.7 11.1 NO 776.8 6.4 12.7 NO CLEN11188 B ZCO10146 Cleanout 776.8 785.0 8.2 777.2 0.0 2.3 NO 777.4 0.0 3.8 NO 777.5 0.0 5.7 NO 777.6 0.0 6.5 NO CBIN11508 B CI1087 Curb Inlet 708.8 717.2 8.4 709.3 3.6 9.5 NO 709.5 6.3 16.6 NO 709.7 9.6 25.2 NO 709.8 10.9 28.8 NO OTHR11279 B ZOTHER10017Other 776.6 784.2 7.6 777.0 0.0 2.3 NO 777.2 0.0 3.8 NO 777.3 0.0 5.7 NO 777.4 0.0 6.5 NO OTHR11280 B ZOTHER10020Other 780.2 788.3 8.1 780.5 0.0 2.3 NO 780.6 0.0 3.8 NO 780.6 0.0 5.7 NO 780.7 0.0 6.6 NO CLEN11189 B ZCO11599 Cleanout 807.4 818.2 10.8 809.5 0.0 241.1 NO 810.3 0.0 412.1 NO 811.5 0.0 600.4 NO 811.5 0.0 639.3 NO CLEN11190 B ZCO10159 Cleanout 696.5 707.4 11.0 699.6 3.5 256.0 NO 707.5 5.6 438.9 NO 720.6 8.3 620.9 YES 727.4 9.3 678.2 YES CLEN11191 B ZCO10160 Cleanout 797.0 813.0 16.0 798.9 1.6 247.9 NO 799.6 2.5 425.1 NO 800.3 3.8 604.9 NO 800.5 4.3 656.8 NO CBIN11509 B CI1076 Curb Inlet 810.1 820.5 10.3 810.6 4.4 6.8 NO 810.7 8.7 12.6 NO 810.9 13.6 19.2 NO 811.0 15.6 22.0 NO CBIN11510 B CI1107 Curb Inlet 812.3 821.6 9.3 812.3 0.0 0.0 NO 812.3 0.0 0.0 NO 812.3 0.0 0.0 NO 812.3 0.0 0.0 NO INLT10747 B ZINL11506 Inlet 811.3 822.0 10.7 811.7 2.4 2.4 NO 811.8 3.9 3.9 NO 811.9 5.7 5.7 NO 811.9 6.5 6.5 NO CLEN11192 B ZCO11911 Cleanout 851.6 865.4 13.8 852.9 0.0 237.6 NO 853.3 0.0 410.9 NO 853.7 0.0 578.2 NO 853.9 0.0 636.0 NO CLEN11193 B ZCO11912 Cleanout 826.3 840.6 14.2 829.1 1.2 238.5 NO 830.5 2.0 412.4 NO 840.6 3.0 590.2 NO 842.0 3.4 638.4 YES INLT10748 B ZINL10161 Inlet 858.5 866.6 8.1 860.2 37.3 50.6 NO 863.2 70.3 102.0 NO 869.1 108.1 157.9 YES 871.6 124.0 184.0 YES CLEN11194 B ZCO10165 Cleanout 685.6 693.7 8.1 685.6 0.0 0.0 NO 685.6 0.0 0.0 NO 685.6 0.0 0.0 NO 685.6 0.0 0.0 NO CBIN11511 B CI1508 Curb Inlet 701.5 712.3 10.7 702.1 1.4 5.2 NO 702.3 2.3 8.6 NO 702.6 3.3 12.8 NO 702.7 3.8 14.7 NO CLEN11195 B ZCO11913 Cleanout 712.1 720.2 8.1 712.6 1.5 6.0 NO 712.7 3.1 10.4 NO 712.8 4.8 15.8 NO 712.9 5.5 18.1 NO CLEN11196 B ZCO11914 Cleanout 761.5 776.8 15.3 761.8 0.0 4.5 NO 761.8 0.0 7.4 NO 761.9 0.0 11.2 NO 761.9 0.0 12.8 NO CBIN11512 B CI0551 Curb Inlet 609.9 619.0 9.1 610.4 5.0 5.0 NO 610.5 8.3 8.3 NO 619.0 12.5 12.5 NO 620.0 14.1 14.1 YES CLEN11197 B ZCO10959 Cleanout 640.9 650.8 9.9 641.6 0.0 6.9 NO 641.7 0.0 11.4 NO 650.9 0.0 20.3 NO 650.9 0.0 30.9 NO CLEN11198 B ZCO11916 Cleanout 693.6 701.1 7.5 693.6 0.0 0.0 NO 693.6 0.0 0.0 NO 693.6 0.0 0.0 NO 693.6 0.0 0.0 NO CLEN11199 B ZCO12350 Cleanout 669.6 678.4 8.8 670.1 6.9 6.9 NO 670.2 11.4 11.4 NO 670.3 17.0 17.0 NO 670.4 19.4 19.4 NO CBIN11513 B CI1088 Curb Inlet 708.8 718.2 9.4 709.0 1.4 1.4 NO 709.1 2.3 2.3 NO 709.1 3.3 3.3 NO 709.2 3.8 3.8 NO CLEN11200 B ZCO12777 Cleanout 604.1 618.5 14.4 605.2 10.1 22.1 NO 605.8 16.4 36.1 NO 618.5 24.3 53.0 NO 618.9 27.5 55.1 NO CLEN11201 B ZCO10273 Cleanout 688.6 692.6 4.0 688.8 0.0 1.2 NO 688.9 0.0 3.2 NO 689.0 0.0 5.3 NO 689.0 0.0 6.2 NO CLEN11202 B ZCO11917 Cleanout 590.9 602.6 11.7 591.9 0.0 30.2 NO 592.2 0.0 47.3 NO 592.4 0.0 66.8 NO 592.5 0.0 69.5 NO CLEN11203 B ZCO11918 Cleanout 626.4 639.3 12.9 627.4 0.0 32.4 NO 627.8 0.0 57.6 NO 639.3 0.0 95.5 NO 640.5 0.0 101.5 YES CLEN11204 B ZCO10182 Cleanout 620.1 626.7 6.6 620.4 0.0 1.5 NO 620.5 0.0 2.4 NO 620.6 0.0 3.5 NO 620.6 0.0 4.0 NO CLEN11205 B ZCO10183 Cleanout 568.6 586.8 18.2 568.9 0.0 6.9 NO 569.0 0.0 11.1 NO 569.1 0.0 16.4 NO 569.2 0.0 18.5 NO CLEN11206 B ZCO11511 Cleanout 561.8 569.5 7.7 562.4 0.0 6.9 NO 562.6 0.0 11.1 NO 562.8 0.0 16.4 NO 562.9 0.0 18.5 NO CBIN11514 B CI0501 Curb Inlet 628.5 637.7 9.2 628.8 3.0 3.0 NO 628.9 5.7 5.7 NO 638.4 8.9 16.2 NO 640.1 10.2 16.0 YES CBIN11515 B CI1494 Curb Inlet 596.7 605.1 8.4 597.2 5.6 5.6 NO 597.3 9.0 9.0 NO 597.5 13.2 13.2 NO 597.5 14.8 14.8 NO CBIN11516 B CI1503 Curb Inlet 593.4 605.0 11.6 594.2 0.0 13.7 NO 594.4 0.0 21.8 NO 594.7 0.0 32.0 NO 594.8 0.0 35.6 NO CBIN11517 B CI1095 Curb Inlet 540.1 550.5 10.4 540.3 1.3 1.3 NO 540.4 2.0 2.0 NO 540.6 2.9 2.9 NO 541.0 3.2 3.2 NO CBIN11518 B CI1507 Curb Inlet 613.0 621.3 8.3 613.5 3.9 3.9 NO 613.6 6.2 6.2 NO 613.8 9.2 9.2 NO 621.3 10.4 10.4 NO CBIN11519 B CI1094 Curb Inlet 631.7 642.9 11.2 632.0 1.1 1.4 NO 632.1 1.8 2.7 NO 642.9 2.7 14.9 NO 643.0 3.1 21.1 NO CBIN11520 B CI1101 Curb Inlet 670.8 678.9 8.2 671.2 4.4 5.5 NO 671.5 9.5 12.6 NO 671.7 15.1 20.3 NO 671.8 17.5 23.5 NO CBIN11521 B CI1093 Curb Inlet 630.3 643.2 12.8 630.7 1.7 3.1 NO 630.8 2.8 5.4 NO 643.3 4.1 17.9 NO 643.4 4.6 22.5 NO CBIN11522 B CI1063 Curb Inlet 630.3 639.7 9.4 630.9 8.3 8.3 NO 631.0 13.4 13.4 NO 639.8 19.8 19.8 NO 641.7 22.4 22.4 YES CBIN11523 B CI1064 Curb Inlet 627.5 639.3 11.8 627.5 0.0 0.0 NO 627.8 0.0 0.0 NO 639.4 0.0 9.1 NO 640.5 0.0 10.6 YES CBIN11524 B CI1505 Curb Inlet 623.2 634.1 10.9 623.2 0.0 0.0 NO 623.2 0.0 0.0 NO 634.4 0.0 17.9 NO 635.8 0.0 14.7 YES CBIN11525 B CI0505 Curb Inlet 620.3 624.9 4.6 620.3 0.0 0.0 NO 620.3 0.0 0.0 NO 620.3 0.0 0.0 NO 620.3 0.0 0.0 NO INLT10749 B INL082 Inlet 604.7 608.7 4.0 612.9 2.4 602.0 YES 615.9 4.0 890.7 YES 618.5 5.9 1136.8 YES 619.6 6.8 1216.2 YES CBIN11526 B CI1506 Curb Inlet 613.1 621.2 8.1 613.1 0.0 0.0 NO 613.2 0.0 0.0 NO 613.5 0.0 0.1 NO 621.2 0.0 1.6 NO CLEN11207 B ZCO12357 Cleanout 577.7 585.7 8.0 578.6 3.6 33.4 NO 578.9 5.9 52.2 NO 579.1 8.7 74.4 NO 579.2 9.8 78.3 NO CLEN11208 B ZCO10184 Cleanout 641.2 653.1 11.9 642.0 0.0 22.7 NO 642.3 0.0 41.9 NO 643.0 0.0 64.3 NO 653.1 0.0 73.6 NO CLEN11209 B ZCO10185 Cleanout 677.1 688.9 11.7 677.8 0.0 15.9 NO 678.0 0.0 27.4 NO 678.2 0.0 41.3 NO 678.2 0.0 47.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 103 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CLEN11210 B ZCO11617 Cleanout 612.3 621.3 9.1 613.0 0.0 8.5 NO 613.2 0.0 13.5 NO 613.5 0.0 19.9 NO 620.8 0.0 22.8 NO CLEN11211 B ZCO11618 Cleanout 629.7 641.1 11.4 630.9 0.0 29.7 NO 631.4 0.0 52.1 NO 641.3 0.0 78.6 NO 643.0 0.0 72.7 YES CLEN11212 B ZCO11619 Cleanout 634.5 644.7 10.2 635.7 0.0 29.7 NO 636.2 0.0 52.0 NO 644.8 0.0 93.9 NO 646.0 0.0 85.6 YES CLEN11213 B ZCO12358 Cleanout 606.1 616.4 10.3 606.7 0.0 8.5 NO 606.9 0.0 13.5 NO 607.0 0.0 20.0 NO 607.1 0.0 22.2 NO CLEN11214 B ZCO10187 Cleanout 537.9 556.9 19.1 539.6 0.0 65.6 NO 540.1 0.0 104.1 NO 553.1 0.0 151.2 NO 549.8 0.0 166.3 NO CLEN11215 B ZCO10188 Cleanout 637.4 644.5 7.2 638.7 9.1 26.1 NO 639.1 15.3 42.8 NO 645.1 23.0 75.4 NO 647.5 26.2 71.7 YES CLEN11216 B ZCO10189 Cleanout 706.2 717.8 11.6 706.8 0.0 10.9 NO 707.0 0.0 18.9 NO 707.2 0.0 28.6 NO 707.3 0.0 32.6 NO CLEN11217 B ZCO11513 Cleanout 702.6 715.1 12.5 702.8 1.2 1.2 NO 702.9 3.2 3.2 NO 703.0 5.3 5.3 NO 703.1 6.2 6.2 NO INLT10750 B ZINL12359 Inlet 618.2 625.1 6.9 618.9 0.0 3.5 NO 619.1 0.0 5.6 NO 619.3 0.0 8.2 NO 619.4 0.0 9.3 NO CLEN11218 B ZCO11620 Cleanout 624.1 637.8 13.6 625.7 0.0 32.4 NO 626.4 0.0 57.3 NO 638.1 0.0 91.2 NO 640.0 0.0 93.8 YES CLEN11219 B ZCO11621 Cleanout 622.8 637.5 14.7 624.3 0.0 35.3 NO 625.0 0.0 62.1 NO 637.7 0.0 100.8 NO 638.7 0.0 102.7 YES CLEN11220 B ZCO12362 Cleanout 619.9 633.9 14.0 621.3 0.0 36.7 NO 622.1 0.0 64.3 NO 634.1 0.0 108.2 NO 635.8 0.0 104.4 YES CLEN11221 B ZCO12363 Cleanout 612.8 629.3 16.5 614.6 0.0 68.0 NO 629.3 0.0 121.3 NO 629.4 0.0 173.2 NO 629.4 0.0 174.6 NO CLEN11222 B ZCO10190 Cleanout 545.9 558.8 12.9 546.2 0.0 3.1 NO 546.3 0.0 5.0 NO 546.3 0.0 7.4 NO 546.4 0.0 8.3 NO CLEN11223 B ZCO10191 Cleanout 562.3 573.9 11.6 562.5 0.0 3.1 NO 562.5 0.0 5.0 NO 562.6 0.0 7.4 NO 562.6 0.0 8.3 NO CBIN11527 B CI0507 Curb Inlet 607.9 617.4 9.5 608.5 1.8 5.8 NO 608.7 2.8 9.1 NO 608.9 4.1 13.3 NO 609.0 4.7 15.0 NO CBIN11528 B CI0509 Curb Inlet 606.8 617.6 10.8 607.4 3.4 9.0 NO 607.6 5.3 14.3 NO 607.8 7.8 20.9 NO 607.8 8.8 23.5 NO CLEN11224 B ZCO11206 Cleanout 603.2 617.4 14.3 603.9 4.1 13.1 NO 604.1 6.4 20.6 NO 604.3 9.3 30.1 NO 604.4 10.5 33.9 NO OTLT10201 B ZOUT10400 Outlet 597.4 601.4 4.0 597.4 0.0 13.1 NO 597.4 0.0 20.6 NO 597.4 0.0 30.1 NO 597.4 0.0 33.9 NO CLEN11225 B ZCO10193 Cleanout 607.1 622.2 15.0 612.9 0.0 98.6 NO 616.5 0.0 194.1 NO 620.7 0.0 289.3 NO 622.0 0.0 311.5 NO CLEN11226 B ZCO11622 Cleanout 628.9 635.6 6.7 628.9 0.0 0.0 NO 628.9 0.0 0.0 NO 628.9 0.0 0.0 NO 628.9 0.0 0.0 NO OTLT10202 B OUT10213 Outlet 619.7 623.7 4.0 619.7 17.5 17.5 NO 619.7 28.7 28.7 NO 619.7 43.1 43.1 NO 619.7 49.0 49.0 NO CLEN11227 B ZCO10195 Cleanout 560.7 568.8 8.2 561.6 1.1 40.8 NO 561.9 1.7 63.8 NO 562.2 2.5 92.4 NO 562.3 2.8 99.5 NO CBIN11529 B CI1065 Curb Inlet 561.2 568.9 7.7 561.9 0.0 7.0 NO 562.1 0.0 11.1 NO 562.3 0.0 16.4 NO 562.4 0.0 18.5 NO CLEN11228 B ZCO11112 Cleanout 588.2 599.6 11.4 589.0 0.0 19.8 NO 589.2 0.0 31.5 NO 589.5 0.0 46.1 NO 589.6 0.0 51.1 NO CBIN11530 B CI1077 Curb Inlet 556.3 563.2 6.9 556.3 0.0 0.0 NO 556.3 0.0 0.0 NO 556.3 0.0 0.0 NO 556.3 0.0 0.0 NO CBIN11531 B CI1072 Curb Inlet 561.4 570.9 9.5 561.7 1.9 1.9 NO 561.7 3.0 3.0 NO 561.8 4.4 4.4 NO 561.8 5.0 5.0 NO CBIN11532 B CI1073 Curb Inlet 557.5 569.1 11.6 558.2 0.0 21.6 NO 558.5 0.0 34.4 NO 558.7 0.0 50.3 NO 558.8 0.0 55.9 NO CBIN11533 B CI10056 Curb Inlet 621.1 633.4 12.3 621.1 0.0 0.0 NO 621.1 0.0 0.0 NO 621.1 0.0 0.0 NO 621.1 0.0 0.0 NO OTLT10203 B OUT10204 Outlet 602.3 606.3 4.0 606.8 0.0 662.6 NO 607.9 0.0 1016.5 YES 608.7 0.0 1323.1 YES 608.9 0.0 1430.5 YES CBIN11534 B CI0040 Curb Inlet 638.5 644.5 6.1 639.4 10.3 10.3 NO 639.9 16.5 16.5 NO 645.5 24.3 24.3 NO 648.0 27.4 27.4 YES CBIN11535 B CI0038 Curb Inlet 640.8 644.8 4.0 640.8 0.0 0.0 NO 640.8 0.0 0.0 NO 645.1 0.0 11.9 NO 647.5 0.0 14.1 YES CBIN11536 B CI0508 Curb Inlet 624.9 634.2 9.3 625.1 1.6 1.6 NO 625.2 2.5 2.5 NO 634.5 3.6 14.1 NO 635.8 4.1 11.9 YES CBIN11537 B CI1053 Curb Inlet 543.3 555.6 12.3 543.3 0.0 0.0 NO 543.3 0.0 0.0 NO 543.4 0.0 1.9 NO 543.5 0.0 2.2 NO CBIN11538 B CI0497 Curb Inlet 611.7 622.5 10.8 616.0 31.5 31.5 NO 629.4 76.1 76.1 YES 644.3 123.1 123.1 YES 650.2 145.0 145.0 YES CBIN11539 B CI0498 Curb Inlet 611.0 622.4 11.4 612.9 0.8 0.8 NO 616.3 1.4 1.4 NO 621.0 2.0 2.0 NO 622.2 2.3 2.3 NO CLEN11229 B ZCO11920 Cleanout 698.5 711.2 12.7 699.2 0.0 16.0 NO 699.4 0.0 27.5 NO 699.6 0.0 41.4 NO 699.7 0.0 47.2 NO CBIN11540 B CI0504 Curb Inlet 617.8 625.1 7.3 618.4 0.0 3.5 NO 618.6 0.0 5.6 NO 618.9 0.0 8.2 NO 619.0 0.0 9.3 NO OTHR11281 B ZOTHER10035Other 569.1 580.9 11.8 569.9 0.0 19.8 NO 570.1 0.0 31.6 NO 570.4 0.0 46.2 NO 570.5 0.0 51.3 NO CLEN11230 B CO14030 Cleanout 617.3 624.9 7.6 617.9 0.0 5.0 NO 618.1 0.0 8.0 NO 618.4 0.0 11.7 NO 618.5 0.0 13.2 NO INLT10751 B ZINL10199 Inlet 714.2 722.7 8.6 714.6 0.0 11.0 NO 714.7 0.0 17.6 NO 714.8 0.0 25.8 NO 714.8 0.0 29.2 NO CLEN11231 B ZCO10200 Cleanout 681.3 694.2 12.8 681.7 0.0 10.3 NO 681.7 0.0 16.3 NO 681.8 0.0 23.8 NO 681.8 0.0 26.9 NO OTLT10204 B OUT10209 Outlet 652.5 656.5 4.0 652.5 0.0 10.3 NO 652.5 0.0 16.3 NO 652.5 0.0 23.8 NO 652.5 0.0 26.9 NO CLEN11232 B ZCO10274 Cleanout 620.0 631.7 11.6 620.0 0.0 0.0 NO 620.0 0.0 0.0 NO 620.0 0.0 0.0 NO 620.0 0.0 0.0 NO CLEN11233 B ZCO10275 Cleanout 689.2 703.0 13.8 692.4 10.8 272.5 NO 703.0 17.7 478.9 NO 703.1 26.2 646.2 NO 704.2 29.7 696.7 YES OTHR11282 B ZOTHER10036Other 769.7 792.4 22.6 771.6 0.0 248.1 NO 772.3 0.0 425.9 NO 773.0 0.0 602.3 NO 773.2 0.0 657.1 NO CBIN11541 B CI1059 Curb Inlet 783.7 788.9 5.2 784.1 7.3 7.3 NO 784.2 11.9 11.9 NO 784.3 17.6 17.6 NO 784.3 19.9 19.9 NO CBIN11542 B CI1098 Curb Inlet 712.4 720.8 8.3 712.4 0.0 0.0 NO 712.4 0.0 0.0 NO 712.4 0.0 0.0 NO 712.4 0.0 0.0 NO CBIN11543 B CI1086 Curb Inlet 777.5 787.1 9.7 778.3 0.0 7.3 NO 778.6 0.0 11.9 NO 781.8 0.0 17.6 NO 781.8 0.0 19.9 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 104 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11544 B CI1078 Curb Inlet 776.1 787.2 11.2 776.5 0.0 7.3 NO 776.6 0.0 11.8 NO 776.8 0.0 17.6 NO 776.8 0.0 19.9 NO INLT10752 B ZINL12371 Inlet 659.8 677.1 17.3 660.5 0.0 10.3 NO 660.6 0.0 16.3 NO 660.8 0.0 23.8 NO 660.8 0.0 26.9 NO CLEN11234 B ZCO12372 Cleanout 592.4 607.2 14.8 593.7 0.0 30.1 NO 594.2 0.0 47.2 NO 605.0 0.0 66.8 NO 607.2 0.0 69.5 NO INLT10753 B ZINL12373 Inlet 600.4 607.7 7.3 601.6 1.0 23.0 NO 607.7 1.6 37.5 NO 610.2 2.3 55.3 YES 611.6 2.6 56.0 YES CLEN11235 B ZCO10201 Cleanout 597.5 613.2 15.6 599.0 1.7 30.0 NO 599.7 2.7 47.3 NO 613.2 3.9 70.7 NO 613.2 4.4 69.8 NO CLEN11236 B ZCO10202 Cleanout 598.5 606.1 7.6 599.9 0.0 23.0 NO 600.6 0.0 37.9 NO 606.2 0.0 52.4 NO 606.8 0.0 54.5 NO CLEN11237 B ZCO10203 Cleanout 595.5 608.3 12.9 596.8 0.0 29.9 NO 597.2 0.0 47.0 NO 608.3 0.0 67.0 NO 608.3 0.0 69.5 NO OTLT10205 B OUT039 Outlet 532.2 538.2 6.0 532.3 0.0 67.5 NO 532.3 0.0 107.6 NO 532.3 0.0 156.4 NO 532.3 0.0 171.9 NO INLT10754 B ZINL11844 Inlet 609.1 618.5 9.4 609.3 0.0 1.2 NO 609.4 0.0 1.8 NO 609.5 0.0 2.7 NO 609.5 0.0 3.0 NO OTHR11283 B ZOTHER10038Other 535.8 552.0 16.2 537.5 0.0 66.7 NO 538.2 0.0 106.1 NO 552.0 0.0 154.6 NO 552.0 0.0 169.9 NO OTHR11284 B ZOTHER10041Other 635.4 645.1 9.7 635.7 2.3 2.3 NO 635.7 3.5 3.5 NO 645.2 5.1 8.8 NO 645.2 5.7 8.7 NO OTHR11285 B ZOTHER10042Other 622.9 636.4 13.6 623.8 0.0 32.4 NO 624.2 0.0 57.6 NO 636.6 0.0 95.5 NO 637.4 0.0 104.2 NO OTHR11286 B ZOTHER10043Other 633.2 645.0 11.7 634.0 0.0 24.7 NO 634.3 0.0 45.1 NO 645.0 0.0 75.0 NO 645.0 0.0 78.9 NO CLEN11238 B ZCO11922 Cleanout 655.8 667.6 11.8 656.5 1.4 22.7 NO 656.8 2.2 41.8 NO 657.1 3.2 64.2 NO 657.2 3.6 73.6 NO CBIN11545 B CI0035 Curb Inlet 607.4 618.0 10.6 608.0 7.0 7.0 NO 608.2 11.5 11.5 NO 618.4 17.0 17.0 NO 620.8 19.2 19.2 YES CLEN11239 B ZCO10205 Cleanout 624.6 630.6 6.0 625.0 1.6 1.6 NO 625.0 2.5 2.5 NO 625.1 3.6 3.6 NO 625.1 4.0 4.0 NO CBIN11546 B CI10065 Curb Inlet 624.7 630.8 6.1 625.0 0.0 0.0 NO 625.0 0.0 0.0 NO 625.1 0.0 0.0 NO 625.1 0.0 0.0 NO CLEN11240 B ZCO12375 Cleanout 618.1 633.9 15.7 619.9 0.0 67.8 NO 621.1 0.0 119.5 NO 634.0 0.0 194.3 NO 634.5 0.0 197.7 NO CLEN11241 B ZCO11454 Cleanout 854.3 869.1 14.8 857.5 0.0 235.9 NO 860.8 0.0 409.2 NO 869.1 0.0 575.7 NO 865.9 0.0 633.6 NO INLT10755 B ZINL11455 Inlet 818.5 830.9 12.4 819.8 2.4 241.1 NO 820.3 3.9 412.1 NO 820.7 5.7 600.5 NO 820.8 6.5 639.3 NO CLEN11242 B ZCO11923 Cleanout 765.7 789.4 23.7 767.0 0.0 253.6 NO 767.5 0.0 435.2 NO 767.8 0.0 615.2 NO 768.0 0.0 670.6 NO OTHR11287 B ZOTHER10045Other 805.7 817.8 12.1 807.9 0.0 246.6 NO 808.7 0.0 422.7 NO 809.6 0.0 618.6 NO 809.9 0.0 654.3 NO OTHR11288 B ZOTHER10046Other 854.4 870.9 16.5 855.6 0.0 41.0 NO 856.0 0.0 66.4 NO 856.8 0.0 97.3 NO 870.9 0.0 118.5 NO OTHR11289 B ZOTHER10047Other 855.9 872.3 16.3 857.2 0.0 27.1 NO 857.7 0.0 44.0 NO 858.3 0.0 64.9 NO 872.3 0.0 107.8 NO OTHR11290 B ZOTHER10048Other 786.6 797.8 11.2 786.9 0.0 2.3 NO 787.0 0.0 3.8 NO 787.1 0.0 5.8 NO 787.1 0.0 6.6 NO OTHR11291 B ZOTHER10049Other 683.3 699.2 15.9 684.0 10.3 10.3 NO 684.2 16.3 16.3 NO 684.5 23.8 23.8 NO 684.6 26.9 26.9 NO OTLT10206 B ZOUT10395 Outlet 861.8 865.8 4.0 861.8 0.0 1.4 NO 861.8 0.0 2.4 NO 861.8 0.0 3.6 NO 861.8 0.0 4.1 NO OTHR11292 B ZOTHER10050Other 604.1 622.4 18.2 612.8 0.0 662.9 NO 615.7 0.0 1016.5 NO 618.3 0.0 1323.1 NO 619.3 0.0 1430.5 NO OTHR11293 B ZOTHER10051Other 645.2 653.5 8.4 645.6 0.0 6.9 NO 645.7 0.0 11.4 NO 646.3 0.0 17.0 NO 653.6 0.0 27.0 NO OTHR11294 B ZOTHER10052Other 650.5 658.3 7.8 650.9 0.0 6.9 NO 651.0 0.0 11.4 NO 651.2 0.0 17.0 NO 651.2 0.0 19.3 NO OTHR11295 B ZOTHER10053Other 589.8 601.0 11.2 590.7 6.3 19.7 NO 591.0 9.9 31.4 NO 591.4 14.5 46.0 NO 595.2 16.3 51.1 NO OTHR11296 B ZOTHER10055Other 537.7 556.3 18.7 539.3 0.0 65.6 NO 539.9 0.0 104.1 NO 552.4 0.0 151.3 NO 549.8 0.0 166.3 NO OTHR11297 B ZOTHER10056Other 550.6 562.8 12.2 551.6 1.1 41.8 NO 551.9 1.7 65.4 NO 552.2 2.5 94.9 NO 552.4 2.9 102.3 NO OTHR11298 B ZOTHER10057Other 593.8 609.6 15.7 595.1 0.0 30.0 NO 595.6 0.0 47.1 NO 609.6 0.0 66.8 NO 608.6 0.0 69.5 NO OTHR11299 B ZOTHER10058Other 852.8 866.5 13.6 856.0 1.5 237.3 NO 858.4 2.4 410.9 NO 861.5 3.6 578.2 NO 860.8 4.0 636.0 NO CLEN11243 B ZCO11838 Cleanout 798.6 810.3 11.6 799.0 4.6 11.0 NO 799.1 7.2 17.6 NO 799.2 10.5 25.8 NO 799.2 11.8 29.2 NO OTHR11300 B ZOTHER10059Other 685.3 699.7 14.4 687.5 0.0 272.4 NO 688.3 0.0 480.5 NO 689.1 0.0 649.0 NO 689.4 0.0 696.3 NO CLEN11244 B ZCO11457 Cleanout 647.0 657.2 10.2 647.1 0.0 0.4 NO 647.2 0.0 0.9 NO 647.2 0.0 1.5 NO 647.2 0.0 1.7 NO OTHR11301 B ZOTHER10062Other 724.1 735.0 10.9 726.0 0.0 149.2 NO 726.6 0.0 249.2 NO 727.2 0.0 345.4 NO 727.5 0.0 392.7 NO OTHR11302 B ZOTHER10063Other 740.5 752.3 11.8 741.5 0.0 149.2 NO 741.8 0.0 249.2 NO 742.0 0.0 345.4 NO 742.1 0.0 392.7 NO CLEN11245 B ZCO11925 Cleanout 937.4 950.9 13.5 938.4 0.0 11.5 NO 938.8 0.0 18.2 NO 950.9 0.0 37.8 NO 952.8 0.0 71.4 YES OTHR11303 B ZOTHER10064Other 916.4 920.8 4.4 916.4 0.0 0.0 NO 916.4 0.0 0.0 NO 920.9 0.0 19.6 NO 921.0 0.0 18.5 NO CLEN11246 B ZCO12376 Cleanout 907.3 916.1 8.8 909.5 0.0 46.2 NO 910.1 0.0 76.8 NO 916.1 0.0 114.6 NO 916.1 0.0 131.3 NO INLT10756 B ZINL12377 Inlet 898.9 905.0 6.1 898.9 0.0 0.0 NO 898.9 0.0 0.0 NO 898.9 0.0 0.0 NO 898.9 0.0 0.0 NO INLT10757 B ZINL11209 Inlet 898.6 902.6 4.0 898.8 1.5 1.5 NO 898.9 2.4 2.4 NO 899.0 3.6 3.6 NO 899.0 4.1 4.1 NO OTHR11304 B ZOTHER10065Other 864.6 878.1 13.4 866.0 0.0 193.1 NO 866.5 0.0 334.4 NO 866.9 0.0 451.9 NO 867.0 0.0 476.2 NO OTHR11305 B ZOTHER10066Other 971.1 977.3 6.3 971.1 0.0 0.0 NO 971.1 0.0 0.0 NO 971.1 0.0 0.0 NO 971.1 0.0 0.0 NO OTHR11306 B ZOTHER10067Other 1105.7 1121.0 15.3 1108.4 7.6 90.5 NO 1109.7 12.9 144.6 NO 1115.3 19.6 212.1 NO 1116.3 22.4 235.3 NO INLT10758 B ZINL12378 Inlet 784.3 796.2 11.9 787.0 0.0 221.7 NO 787.9 0.0 383.0 NO 788.4 0.0 516.6 NO 788.5 0.0 555.8 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 105 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTLT10207 B OUT10214 Outlet 618.3 623.0 4.7 618.4 4.7 16.1 NO 618.4 7.6 27.2 NO 618.4 11.1 41.1 NO 618.4 12.6 46.9 NO CBIN11547 B CI0623 Curb Inlet 621.7 633.2 11.5 622.4 0.0 11.7 NO 622.6 0.0 20.1 NO 622.8 0.0 30.6 NO 622.8 0.0 35.0 NO CLEN11247 B ZCO11113 Cleanout 623.6 637.2 13.6 624.4 0.0 11.7 NO 624.6 0.0 20.0 NO 624.9 0.0 30.5 NO 625.0 0.0 34.8 NO CLEN11248 B ZCO11114 Cleanout 627.6 641.8 14.2 628.3 2.0 11.6 NO 628.6 3.4 20.0 NO 628.8 5.1 30.3 NO 628.9 5.8 34.7 NO CBIN11548 B CI0279 Curb Inlet 635.1 645.4 10.3 635.5 5.2 5.2 NO 635.6 9.5 9.5 NO 635.7 14.9 14.9 NO 635.7 17.2 17.2 NO CLEN11249 B ZCO10206 Cleanout 629.8 642.4 12.6 630.2 0.0 4.6 NO 630.3 0.0 7.3 NO 630.4 0.0 10.8 NO 630.4 0.0 12.2 NO CLEN11250 B ZCO12379 Cleanout 641.3 651.1 9.8 641.7 0.0 4.6 NO 641.8 0.0 7.4 NO 641.9 0.0 10.8 NO 641.9 0.0 12.2 NO CLEN11251 B ZCO12380 Cleanout 650.3 661.3 11.0 650.7 0.0 4.6 NO 650.8 0.0 7.4 NO 650.9 0.0 10.8 NO 651.0 0.0 12.2 NO CBIN11549 B CI0543 Curb Inlet 651.5 662.2 10.7 652.1 4.6 4.6 NO 652.2 7.4 7.4 NO 652.4 10.9 10.9 NO 652.5 12.3 12.3 NO OTHR11307 B ZOTHER10069Other 803.4 811.3 7.9 804.0 6.6 6.6 NO 804.2 10.6 10.6 NO 804.3 15.7 15.7 NO 804.4 17.7 17.7 NO CLEN11252 B ZCO10351 Cleanout 871.5 883.1 11.7 872.2 2.1 15.6 NO 872.5 4.0 27.0 NO 872.7 6.2 38.2 NO 872.8 7.1 45.7 NO CLEN11253 B ZCO10352 Cleanout 850.2 871.9 21.7 852.1 2.0 32.5 NO 852.9 3.3 54.3 NO 855.4 4.9 79.0 NO 856.4 5.6 88.7 NO CBIN11550 B CI0956 Curb Inlet 849.2 865.4 16.2 851.1 0.0 32.6 NO 851.8 0.0 54.5 NO 856.7 0.0 79.2 NO 859.6 0.0 88.7 NO CLEN11254 B ZCO11657 Cleanout 848.1 855.7 7.6 848.9 1.7 34.1 NO 849.1 2.7 56.9 NO 849.3 4.0 83.0 NO 849.4 4.5 92.7 NO CLEN11255 B ZCO11658 Cleanout 822.2 841.9 19.7 823.0 0.0 50.6 NO 823.2 0.0 83.8 NO 823.5 0.0 125.7 NO 823.6 0.0 140.9 NO CBIN11551 B CI10149 Curb Inlet 824.5 837.1 12.6 825.4 6.1 16.2 NO 825.7 10.1 26.4 NO 826.0 15.0 39.2 NO 826.2 17.0 44.5 NO CLEN11256 B ZCO10353 Cleanout 831.2 845.6 14.5 831.7 5.9 10.2 NO 831.8 9.6 16.5 NO 832.0 14.3 24.3 NO 832.0 16.2 27.6 NO CBIN11552 B CI10151 Curb Inlet 838.7 850.6 12.0 838.7 0.0 0.0 NO 838.7 0.0 0.0 NO 838.7 0.0 0.0 NO 838.7 0.0 0.0 NO CBIN11553 B CI10153 Curb Inlet 844.1 856.2 12.1 844.5 0.0 4.7 NO 844.6 0.0 7.5 NO 844.7 0.0 11.0 NO 844.8 0.0 12.3 NO CBIN11554 B CI10154 Curb Inlet 844.8 855.7 10.9 845.5 0.0 4.7 NO 845.7 0.0 7.5 NO 846.1 0.0 11.0 NO 846.3 0.0 12.6 NO CLEN11257 B ZCO12467 Cleanout 852.3 859.3 7.0 852.7 0.0 4.7 NO 852.8 0.0 7.5 NO 853.0 0.0 11.0 NO 853.0 0.0 12.9 NO CLEN11258 B ZCO10354 Cleanout 862.4 871.4 9.0 862.7 0.0 4.7 NO 862.8 0.0 7.5 NO 862.8 0.0 11.0 NO 862.9 0.0 13.0 NO CBIN11555 B CI0721 Curb Inlet 863.8 869.9 6.1 864.5 4.7 4.7 NO 864.8 7.6 7.6 NO 865.1 11.1 11.1 NO 869.9 12.5 12.5 NO OTLT10208 B OUT043 Outlet 810.8 814.8 4.0 811.8 0.0 50.6 NO 812.1 0.0 83.8 NO 812.4 0.0 125.7 NO 812.5 0.0 140.9 NO OTLT10209 B INL069 Outlet 804.3 808.3 4.0 808.4 1.7 159.6 NO 808.9 4.1 260.4 NO 809.4 6.8 336.8 YES 809.7 7.9 375.8 YES OTLT10210 B OUT044 Outlet 809.1 813.1 4.0 810.8 0.0 135.6 NO 811.3 0.0 230.8 NO 811.6 0.0 285.8 NO 811.7 0.0 305.8 NO CLEN11259 B ZCO11984 Cleanout 809.7 823.5 13.8 813.3 5.2 135.5 NO 817.6 12.8 230.8 NO 820.9 21.9 285.8 NO 822.2 25.7 305.8 NO CBIN11556 B CI0957 Curb Inlet 813.0 823.2 10.2 814.0 12.1 12.1 NO 817.7 29.2 29.2 NO 821.1 47.8 47.8 NO 822.5 55.7 55.7 NO CBIN11557 B CI0958 Curb Inlet 812.4 823.0 10.6 813.4 0.0 12.2 NO 817.7 0.0 29.2 NO 821.0 0.0 47.8 NO 822.3 0.0 55.7 NO INLT10759 B ZINL13314 Inlet 810.3 822.2 11.9 813.5 5.2 122.5 NO 818.0 11.0 204.4 NO 821.4 17.3 246.5 NO 822.7 20.0 261.4 NO CBIN11558 B CI1461 Curb Inlet 854.4 866.2 11.8 855.5 11.6 11.6 NO 855.9 19.0 19.0 NO 866.2 28.1 28.1 NO 866.2 31.8 31.8 NO CLEN11260 B ZCO10356 Cleanout 852.6 868.4 15.8 854.1 1.2 12.8 NO 854.8 1.8 20.7 NO 868.4 2.6 30.8 NO 868.4 3.0 34.8 NO CBIN11559 B CI0738 Curb Inlet 865.0 871.1 6.0 865.0 0.0 0.0 NO 865.0 0.0 0.0 NO 865.0 0.0 0.7 NO 865.0 0.0 1.0 NO CBIN11560 B CI0739 Curb Inlet 866.9 872.9 6.0 866.9 0.0 0.0 NO 866.9 0.0 0.0 NO 866.9 0.0 0.0 NO 866.9 0.0 0.0 NO CBIN11561 B CI0955 Curb Inlet 858.7 865.0 6.3 858.7 0.0 0.0 NO 858.7 0.0 0.0 NO 858.7 0.0 0.0 NO 858.7 0.0 0.3 NO CLEN11261 B ZCO12468 Cleanout 877.2 891.0 13.8 878.0 0.0 48.9 NO 878.2 0.0 78.3 NO 878.5 0.0 108.2 NO 878.8 0.0 114.1 NO INLT10760 B ZINL12469 Inlet 864.1 871.6 7.5 865.2 0.0 48.9 NO 865.6 0.0 78.3 NO 873.5 0.0 108.7 YES 875.5 0.0 114.0 YES CLEN11262 B ZCO11659 Cleanout 855.5 870.8 15.3 857.5 0.0 48.9 NO 870.8 0.0 85.3 NO 871.0 0.0 122.1 NO 872.7 0.0 121.0 YES CLEN11263 B ZCO12470 Cleanout 851.6 862.5 10.9 853.8 5.6 53.4 NO 862.6 9.1 89.2 NO 862.6 13.4 119.0 NO 862.6 15.2 121.9 NO SEPR10023 B SEP10011 Separator 852.2 870.5 18.2 853.3 3.1 15.5 NO 853.9 4.9 24.8 NO 870.5 7.2 37.9 NO 870.5 8.1 42.9 NO DETB10008 B ZBAS018 Detention Basin 806.1 810.1 4.0 806.1 1.3 158.3 NO 806.1 2.2 257.8 NO 806.1 3.3 330.3 NO 806.1 3.7 368.5 NO CLEN11264 B ZCO10986 Cleanout 614.0 626.1 12.1 614.6 0.0 15.4 NO 614.8 0.0 25.0 NO 614.9 0.0 36.5 NO 614.9 0.0 39.0 NO CBIN11562 B CI10307 Curb Inlet 622.8 630.1 7.3 623.3 1.9 15.4 NO 623.4 3.2 25.0 NO 623.5 4.9 36.5 NO 623.5 5.6 39.0 NO CBIN11563 B CI10683 Curb Inlet 519.3 524.6 5.3 519.9 0.0 1.1 NO 524.7 0.0 6.6 NO 524.7 0.0 7.4 NO 524.7 0.0 8.4 NO CBIN11564 B CI10310 Curb Inlet 520.2 524.7 4.5 520.5 0.9 0.9 NO 524.8 1.8 5.6 NO 524.8 2.8 7.6 NO 524.8 3.2 6.4 NO INLT10761 B ZINL11056 Inlet 512.2 516.2 4.0 521.1 4.3 690.7 YES 523.0 12.6 1809.9 YES 523.1 22.1 1820.4 YES 523.3 26.1 1835.5 YES OTHR11308 B ZOTHER10310Other 495.2 500.6 5.4 504.1 0.0 711.5 YES 510.5 0.0 1797.9 YES 512.5 0.0 1798.4 YES 512.9 0.0 1793.3 YES OTHR11309 B ZOTHER10316Other 511.0 525.5 14.6 519.8 0.0 690.7 NO 525.5 0.0 1807.3 NO 525.5 0.0 1812.7 NO 525.5 0.0 1798.4 NO INLT10762 B ZINL11275 Inlet 496.0 503.2 7.2 504.3 0.0 29.2 YES 510.5 0.0 75.8 YES 512.5 0.0 63.0 YES 512.9 0.0 52.2 YES

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 106 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10763 B ZINL11276 Inlet 499.7 508.2 8.5 508.2 3.9 6.7 NO 511.0 7.1 25.1 YES 514.2 11.6 37.8 YES 514.4 13.7 35.5 YES SEPR10024 B ZSEP10016 Separator 618.8 629.9 11.1 619.2 0.0 15.4 NO 619.4 0.0 25.0 NO 619.5 0.0 36.5 NO 619.5 0.0 39.0 NO INLT10764 B ZINL11753 Inlet 626.5 634.4 7.9 627.4 0.0 13.5 NO 627.8 0.0 21.9 NO 628.2 0.0 32.3 NO 628.8 0.0 36.1 NO CLEN11265 B ZCO11754 Cleanout 627.9 636.1 8.2 628.6 2.3 5.9 NO 628.8 3.9 9.9 NO 629.1 5.8 14.8 NO 629.3 6.6 17.0 NO CLEN11266 B ZCO10606 Cleanout 628.0 637.5 9.5 628.9 7.7 7.7 NO 629.1 12.1 12.1 NO 629.5 17.6 17.6 NO 629.7 19.9 19.9 NO INLT10765 B ZINL11293 Inlet 629.7 636.0 6.3 630.2 3.7 3.7 NO 630.4 6.2 6.2 NO 630.6 9.3 9.3 NO 630.6 10.6 10.6 NO CLEN11267 B ZCO10670 Cleanout 1238.9 1245.7 6.8 1239.1 1.8 1.8 NO 1239.2 2.9 2.9 NO 1239.3 4.3 4.3 NO 1239.3 4.9 4.9 NO CLEN11268 B ZCO10671 Cleanout 1228.9 1239.0 10.0 1229.5 1.6 3.4 NO 1229.7 2.6 5.4 NO 1229.9 3.7 7.9 NO 1230.0 4.1 9.0 NO CLEN11269 B ZCO10673 Cleanout 1226.3 1234.4 8.2 1226.8 0.0 3.3 NO 1226.9 0.0 5.2 NO 1227.1 0.0 7.7 NO 1227.1 0.0 8.7 NO CBIN11565 B CI10403 Curb Inlet 1219.9 1230.9 11.0 1220.4 0.0 3.2 NO 1220.6 0.0 5.1 NO 1220.7 0.0 7.6 NO 1220.8 0.0 8.6 NO CBIN11566 B CI10404 Curb Inlet 1221.3 1231.4 10.1 1221.3 0.0 0.0 NO 1221.3 0.0 0.0 NO 1221.3 0.0 0.0 NO 1221.3 0.0 0.0 NO CLEN11270 B ZCO11767 Cleanout 1217.4 1238.9 21.5 1218.1 13.8 27.9 NO 1218.3 22.0 45.7 NO 1218.6 32.3 67.7 NO 1218.7 36.4 76.7 NO CLEN11271 B ZCO11768 Cleanout 1247.7 1257.4 9.6 1248.3 6.5 11.6 NO 1248.5 11.4 19.6 NO 1248.7 17.3 29.3 NO 1248.8 19.7 33.4 NO CBIN11567 B CI10405 Curb Inlet 1261.3 1272.0 10.7 1261.8 0.0 5.2 NO 1261.9 0.0 8.5 NO 1262.1 0.0 12.6 NO 1262.1 0.0 14.3 NO CLEN11272 B ZCO12147 Cleanout 1268.3 1278.7 10.4 1268.8 2.2 5.2 NO 1268.9 3.4 8.5 NO 1269.1 5.0 12.6 NO 1269.1 5.6 14.2 NO CLEN11273 B ZCO10674 Cleanout 1290.6 1300.5 9.9 1290.9 1.8 3.1 NO 1291.0 3.0 5.2 NO 1291.1 4.3 7.7 NO 1291.1 4.9 8.8 NO CBIN11568 B CI10407 Curb Inlet 1296.9 1307.6 10.6 1297.2 1.4 1.4 NO 1297.3 2.4 2.4 NO 1297.4 3.6 3.6 NO 1297.5 4.1 4.1 NO CBIN11569 B CI10409 Curb Inlet 1158.6 1166.3 7.7 1159.1 4.2 4.2 NO 1159.2 7.7 7.7 NO 1159.4 11.7 11.7 NO 1159.5 13.3 13.3 NO CLEN11274 B ZCO12969 Cleanout 1150.8 1163.2 12.3 1151.2 0.0 4.2 NO 1151.3 0.0 7.6 NO 1151.4 0.0 11.6 NO 1151.5 0.0 13.3 NO CLEN11275 B ZCO13033 Cleanout 1133.3 1145.0 11.7 1133.7 0.0 5.8 NO 1133.8 0.0 10.1 NO 1134.2 0.0 15.1 NO 1135.2 0.0 17.2 NO CLEN11276 B ZCO13034 Cleanout 1134.3 1145.5 11.2 1134.6 0.0 1.6 NO 1134.7 0.0 2.5 NO 1134.8 0.0 3.6 NO 1135.2 0.0 4.1 NO CLEN11277 B ZCO12148 Cleanout 1146.3 1158.2 12.0 1146.5 1.7 1.7 NO 1146.6 2.6 2.6 NO 1146.6 3.7 3.7 NO 1146.6 4.1 4.1 NO CLEN11278 B ZCO10675 Cleanout 1147.4 1157.8 10.4 1147.4 0.0 0.0 NO 1147.4 0.0 0.0 NO 1147.4 0.0 0.0 NO 1147.4 0.0 0.0 NO CLEN11279 B ZCO10677 Cleanout 1148.3 1160.4 12.2 1148.3 0.0 0.0 NO 1148.3 0.0 0.0 NO 1148.3 0.0 0.0 NO 1148.3 0.0 0.0 NO CLEN11280 B ZCO11559 Cleanout 1199.1 1215.1 16.0 1199.1 0.0 0.0 NO 1199.1 0.0 0.0 NO 1199.1 0.0 0.0 NO 1199.1 0.0 0.0 NO INLT10766 B ZINL11770 Inlet 1217.3 1221.3 4.0 1218.0 6.1 6.1 NO 1218.6 12.7 12.7 NO 1222.9 20.0 20.0 YES 1224.8 23.1 23.1 YES CLEN11281 B ZCO12700 Cleanout 1212.7 1223.6 10.9 1213.3 1.7 7.5 NO 1213.6 2.7 14.7 NO 1213.8 3.9 20.2 NO 1213.9 4.4 21.7 NO CBIN11570 B CI10413 Curb Inlet 1199.0 1209.9 10.9 1199.6 2.3 9.6 NO 1199.8 3.7 18.1 NO 1200.0 5.4 25.3 NO 1200.1 6.1 27.4 NO CLEN11282 B ZCO13035 Cleanout 1180.1 1191.2 11.2 1180.6 0.0 9.6 NO 1180.8 0.0 18.1 NO 1181.0 0.0 25.3 NO 1181.1 0.0 27.4 NO CBIN11571 B CI10415 Curb Inlet 1153.3 1168.4 15.1 1154.2 9.6 26.1 NO 1154.5 15.3 44.3 NO 1154.8 22.5 63.5 NO 1154.9 25.4 70.3 NO CBIN11572 B CI10416 Curb Inlet 1154.2 1168.8 14.6 1154.9 0.0 7.9 NO 1155.1 0.0 12.2 NO 1155.3 0.0 17.1 NO 1155.4 0.0 19.9 NO CBIN11573 B CI10418 Curb Inlet 1155.2 1165.4 10.2 1155.9 0.0 7.9 NO 1156.1 0.0 12.2 NO 1156.3 0.0 17.1 NO 1156.4 0.0 19.8 NO CLEN11283 B ZCO12970 Cleanout 1158.9 1169.5 10.5 1159.7 3.4 7.9 NO 1159.9 5.3 12.2 NO 1160.2 7.7 17.2 NO 1160.3 8.7 20.4 NO CLEN11284 B ZCO12971 Cleanout 1162.2 1171.9 9.8 1162.8 0.0 4.9 NO 1163.0 0.0 7.6 NO 1163.1 0.0 10.4 NO 1163.2 0.0 12.8 NO CBIN11574 B CI10420 Curb Inlet 1163.7 1173.7 10.0 1164.6 2.9 5.0 NO 1164.9 4.5 7.9 NO 1165.5 6.5 11.4 NO 1173.7 7.3 12.7 NO CLEN11285 B ZCO10680 Cleanout 1165.9 1176.3 10.4 1166.4 2.3 2.3 NO 1166.5 3.6 3.6 NO 1166.7 5.2 5.2 NO 1166.8 5.9 5.9 NO INLT10767 B ZINL10681 Inlet 1169.8 1179.0 9.3 1169.8 0.0 0.0 NO 1169.8 0.0 0.0 NO 1169.8 0.0 0.0 NO 1169.8 0.0 0.0 NO CLEN11286 B ZCO10682 Cleanout 1141.9 1154.3 12.5 1142.6 2.0 27.9 NO 1142.9 3.1 47.2 NO 1143.1 4.4 67.9 NO 1143.2 5.0 75.0 NO CBIN11575 B CI10422 Curb Inlet 1117.1 1133.6 16.5 1118.1 1.7 29.4 NO 1118.5 2.6 49.6 NO 1118.8 3.8 71.5 NO 1118.9 4.2 79.0 NO OTHR11310 B ZOTHER10496Other 1113.4 1124.4 11.0 1114.4 0.0 29.4 NO 1114.7 0.0 49.7 NO 1115.0 0.0 71.8 NO 1115.1 0.0 79.3 NO CBIN11576 B CI10423 Curb Inlet 1108.7 1120.3 11.6 1109.5 5.4 5.4 NO 1109.7 8.8 8.8 NO 1110.0 12.9 12.9 NO 1110.1 14.6 14.6 NO CBIN11577 B CI10687 Curb Inlet 1107.4 1120.5 13.1 1108.6 9.7 43.8 NO 1109.0 16.5 73.6 NO 1109.4 24.9 107.9 NO 1109.7 28.4 120.5 NO CLEN11287 B ZCO13036 Cleanout 1098.7 1111.4 12.7 1099.9 0.0 45.3 NO 1100.4 0.0 76.1 NO 1100.9 0.0 111.6 NO 1111.4 0.0 124.7 NO CBIN11578 B ZCI10688 Curb Inlet 1104.7 1115.5 10.7 1105.0 1.6 1.6 NO 1105.0 2.5 2.5 NO 1105.1 3.7 3.7 NO 1105.1 4.2 4.2 NO CLEN11288 B ZCO12972 Cleanout 1096.3 1108.6 12.2 1097.7 3.6 75.5 NO 1098.2 6.0 127.8 NO 1098.8 9.0 185.6 NO 1108.6 10.2 199.2 NO CBIN11579 B CI10424 Curb Inlet 1099.3 1111.7 12.4 1100.2 2.1 26.9 NO 1100.6 3.3 46.2 NO 1101.0 4.8 64.9 NO 1111.7 5.5 66.2 NO CLEN11289 B ZCO10683 Cleanout 1107.6 1118.8 11.2 1108.7 0.0 24.9 NO 1109.3 0.0 43.6 NO 1118.8 0.0 63.3 NO 1120.0 0.0 63.8 YES CLEN11290 B ZCO10684 Cleanout 1119.6 1130.7 11.2 1120.5 19.5 25.0 NO 1120.9 34.0 43.7 NO 1132.1 51.4 65.5 YES 1134.6 58.6 72.7 YES CLEN11291 B ZCO10685 Cleanout 1077.5 1092.5 15.0 1078.8 0.0 86.8 NO 1079.2 0.0 148.1 NO 1079.7 0.0 216.8 NO 1079.8 0.0 230.2 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 107 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10768 B ZINL11560 Inlet 1080.3 1084.3 4.0 1080.9 11.9 11.9 NO 1081.1 21.3 21.3 NO 1081.3 32.3 32.3 NO 1081.3 36.9 36.9 NO CBIN11580 B CI10706 Curb Inlet 1054.6 1067.9 13.3 1056.2 1.6 166.9 NO 1056.8 2.5 283.2 NO 1057.4 3.6 419.1 NO 1058.3 4.0 444.8 NO CBIN11581 B CI10425 Curb Inlet 1056.4 1068.2 11.7 1058.3 4.5 79.8 NO 1059.1 7.9 133.9 NO 1068.2 12.3 202.3 NO 1068.2 14.1 210.8 NO CBIN11582 B CI10707 Curb Inlet 1063.8 1077.5 13.7 1064.8 3.3 75.6 NO 1065.2 5.1 126.7 NO 1065.8 7.4 189.1 NO 1065.8 8.3 197.7 NO CLEN11292 B ZCO12973 Cleanout 1072.1 1084.3 12.2 1073.8 2.3 73.0 NO 1074.5 3.6 122.5 NO 1084.4 5.2 184.2 NO 1084.9 5.8 200.6 NO CBIN11583 B CI10426 Curb Inlet 1095.5 1106.2 10.7 1096.7 2.9 71.2 NO 1097.1 4.6 119.6 NO 1097.9 6.8 173.6 NO 1106.3 7.7 192.8 NO CLEN11293 B ZCO13037 Cleanout 1137.5 1149.4 12.0 1138.8 0.0 68.9 NO 1139.2 0.0 115.8 NO 1139.8 0.0 167.8 NO 1149.5 0.0 193.7 NO OTHR11311 B ZOTHER10498Other 1139.6 1150.4 10.8 1140.9 3.9 68.9 NO 1141.4 6.2 115.8 NO 1141.9 9.0 167.8 NO 1150.5 10.2 198.4 NO CBIN11584 B CI10428 Curb Inlet 1139.8 1151.5 11.8 1140.9 5.0 5.0 NO 1141.4 7.9 7.9 NO 1142.0 11.5 11.5 NO 1151.5 13.0 13.0 NO CBIN11585 B CI10430 Curb Inlet 1145.5 1157.5 12.0 1146.8 11.1 61.5 NO 1147.3 17.7 103.7 NO 1147.9 25.9 149.6 NO 1157.5 29.2 170.4 NO CBIN11586 B CI10432 Curb Inlet 1179.7 1191.5 11.8 1180.8 2.1 52.4 NO 1181.2 3.4 88.8 NO 1181.6 5.0 127.4 NO 1181.8 5.6 145.0 NO CBIN11587 B CI10708 Curb Inlet 1212.3 1225.4 13.1 1213.5 7.7 50.8 NO 1213.9 12.2 86.1 NO 1214.3 17.8 123.4 NO 1214.5 20.1 140.1 NO CBIN11588 B CI1696 Curb Inlet 1220.7 1234.0 13.3 1222.0 3.8 44.0 NO 1222.5 6.3 75.1 NO 1223.0 9.4 107.6 NO 1223.2 10.7 121.7 NO CLEN11294 B ZCO11771 Cleanout 1244.4 1258.5 14.1 1245.5 1.4 40.5 NO 1245.8 2.9 69.2 NO 1246.2 4.5 99.4 NO 1246.4 5.2 111.9 NO CLEN11295 B ZCO12149 Cleanout 1280.0 1289.2 9.2 1280.9 0.8 39.2 NO 1281.2 1.4 66.4 NO 1281.5 2.0 97.6 NO 1281.6 2.3 107.4 NO CLEN11296 B ZCO10686 Cleanout 1284.7 1297.2 12.5 1286.0 4.9 38.3 NO 1286.5 8.3 64.8 NO 1297.2 12.4 102.8 NO 1297.2 14.1 105.2 NO INLT10769 B INL141 Inlet 1290.9 1299.6 8.7 1290.9 0.0 0.0 NO 1290.9 0.0 0.0 NO 1291.6 0.0 6.0 NO 1299.6 0.0 3.4 NO CBIN11589 B CI1698 Curb Inlet 1287.8 1299.5 11.7 1288.5 0.0 11.3 NO 1288.7 0.0 20.6 NO 1299.5 0.0 37.9 NO 1299.5 0.0 38.1 NO CBIN11590 B CI1697 Curb Inlet 1288.7 1299.7 11.0 1288.7 0.0 0.0 NO 1288.7 0.0 0.0 NO 1299.7 0.0 2.6 NO 1299.7 0.0 2.8 NO CLEN11297 B ZCO10994 Cleanout 1286.2 1299.3 13.0 1288.1 6.0 23.0 NO 1299.3 9.5 36.5 NO 1299.3 13.9 64.5 NO 1299.6 15.7 69.8 NO CBIN11591 B CI10435 Curb Inlet 1290.0 1301.8 11.8 1290.4 0.0 3.6 NO 1290.8 0.0 5.7 NO 1301.8 0.0 12.1 NO 1301.9 0.0 12.0 NO INLT10770 B ZINL10687 Inlet 1301.2 1309.5 8.3 1301.9 13.6 13.6 NO 1302.0 21.8 21.8 NO 1302.4 32.0 32.0 NO 1309.5 36.2 36.2 NO CLEN11298 B ZCO10688 Cleanout 1309.3 1319.1 9.8 1309.9 0.0 11.3 NO 1310.2 0.0 20.6 NO 1310.5 0.0 31.4 NO 1319.1 0.0 35.7 NO CLEN11299 B ZCO11772 Cleanout 1334.3 1344.2 9.9 1334.9 6.7 11.3 NO 1335.2 11.6 20.6 NO 1335.5 17.4 31.6 NO 1344.4 19.8 36.1 NO CBIN11592 B CI1700 Curb Inlet 1357.1 1369.1 12.1 1357.5 0.0 5.0 NO 1357.6 0.0 9.7 NO 1357.8 0.0 15.0 NO 1357.9 0.0 17.2 NO CBIN11593 B CI1699 Curb Inlet 1357.9 1369.6 11.6 1357.9 0.0 0.0 NO 1357.9 0.0 0.0 NO 1357.9 0.0 0.0 NO 1357.9 0.0 0.0 NO CLEN11300 B ZCO12150 Cleanout 1399.5 1409.6 10.1 1399.8 0.0 5.1 NO 1400.0 0.0 9.7 NO 1400.1 0.0 15.0 NO 1400.2 0.0 17.3 NO CLEN11301 B ZCO10689 Cleanout 1427.6 1438.0 10.4 1428.0 0.0 5.1 NO 1428.1 0.0 9.8 NO 1428.2 0.0 15.0 NO 1428.3 0.0 17.3 NO CLEN11302 B ZCO10690 Cleanout 1436.4 1448.3 11.9 1436.8 3.1 5.1 NO 1437.0 5.1 9.8 NO 1437.2 7.5 15.2 NO 1437.3 8.5 17.4 NO CBIN11594 B CI1702 Curb Inlet 1463.2 1474.4 11.2 1463.5 2.1 2.1 NO 1463.6 4.8 4.8 NO 1463.7 7.7 7.7 NO 1463.7 8.9 8.9 NO CLEN11303 B ZCO12152 Cleanout 1306.0 1315.9 9.9 1306.4 3.6 3.6 NO 1306.5 5.7 5.7 NO 1306.6 8.3 8.3 NO 1306.6 9.4 9.4 NO INLT10771 B ZINL12153 Inlet 1321.4 1330.2 8.8 1321.4 0.0 0.0 NO 1321.4 0.0 0.0 NO 1321.4 0.0 0.0 NO 1321.4 0.0 0.0 NO OTHR11312 B ZOTHER10499Other 1041.0 1052.5 11.5 1042.5 0.0 167.0 NO 1043.1 0.0 283.3 NO 1044.9 0.0 417.0 NO 1052.7 0.0 455.9 NO CLEN11304 B ZCO10692 Cleanout 1030.2 1045.8 15.6 1032.2 0.0 172.2 NO 1032.9 0.0 292.0 NO 1045.9 0.0 469.8 NO 1047.0 0.0 486.5 YES CBIN11595 B CI10438 Curb Inlet 1034.2 1045.8 11.6 1034.8 5.7 5.7 NO 1034.9 9.5 9.5 NO 1045.9 14.1 27.4 NO 1047.4 16.0 29.6 YES CLEN11305 B ZCO11075 Cleanout 1042.3 1053.4 11.1 1042.3 0.0 0.0 NO 1042.3 0.0 0.0 NO 1042.5 0.0 2.8 NO 1053.5 0.0 10.2 NO CBIN11596 B CI10710 Curb Inlet 1012.6 1029.7 17.1 1015.1 3.2 175.0 NO 1017.0 5.7 297.0 NO 1029.7 8.6 438.0 NO 1029.9 9.8 460.5 NO CBIN11597 B CI10442 Curb Inlet 1008.3 1022.3 14.0 1012.0 0.0 175.9 NO 1019.7 0.0 301.3 NO 1022.5 0.0 437.9 NO 1022.6 0.0 460.1 NO CBIN11598 B CI10444 Curb Inlet 1006.8 1023.1 16.2 1009.3 4.7 180.6 NO 1010.3 7.6 307.9 NO 1023.1 11.2 466.2 NO 1023.1 12.6 495.7 NO CLEN11306 B ZCO12154 Cleanout 996.5 1009.6 13.1 998.6 1.0 182.3 NO 999.3 1.6 311.8 NO 1000.2 2.4 450.5 NO 1000.4 2.7 475.5 NO SEPR10025 B ZSEP10017 Separator 982.7 995.7 12.9 985.0 0.0 182.2 NO 985.9 0.0 311.5 NO 986.9 0.0 441.5 NO 995.7 0.0 470.7 NO CBIN11599 B CI10445 Curb Inlet 981.6 994.0 12.4 982.6 4.3 186.3 NO 982.9 7.8 318.9 NO 983.2 12.1 447.2 NO 983.2 13.9 482.5 NO CLEN11307 B ZCO13039 Cleanout 857.9 873.4 15.5 861.3 0.0 186.3 NO 863.9 0.0 318.9 NO 869.7 0.0 447.1 NO 872.5 0.0 480.0 NO CLEN11308 B ZCO13040 Cleanout 857.5 871.1 13.6 860.1 0.0 235.6 NO 863.3 0.0 409.3 NO 869.0 0.0 575.7 NO 871.5 0.0 644.3 NO CBIN11600 B CI10446 Curb Inlet 956.5 970.7 14.2 958.2 6.3 46.3 NO 959.0 10.0 77.0 NO 970.7 14.6 114.5 NO 970.7 16.4 131.3 NO SEPR10026 B ZSEP10018 Separator 955.2 971.8 16.6 955.9 0.0 46.2 NO 956.1 0.0 76.8 NO 956.3 0.0 114.6 NO 956.3 0.0 131.3 NO CLEN11309 B ZCO12701 Cleanout 974.0 986.3 12.3 974.9 0.0 40.7 NO 975.2 0.0 68.0 NO 975.6 0.0 101.2 NO 975.7 0.0 115.6 NO INLT10772 B ZINL10693 Inlet 978.2 986.1 7.8 978.2 0.0 0.0 NO 978.2 0.0 0.0 NO 978.2 0.0 0.0 NO 978.2 0.0 0.0 NO CLEN11310 B ZCO10694 Cleanout 994.9 1007.5 12.6 995.9 0.0 40.7 NO 996.2 0.0 68.0 NO 996.5 0.0 101.1 NO 996.6 0.0 117.5 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 108 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11601 B CI10447 Curb Inlet 1001.0 1012.2 11.2 1001.0 0.0 0.0 NO 1001.0 0.0 0.0 NO 1001.0 0.0 0.0 NO 1001.0 0.0 0.0 NO CBIN11602 B CI10448 Curb Inlet 1000.3 1012.3 12.0 1000.7 3.4 3.4 NO 1000.8 5.6 5.6 NO 1000.9 8.2 8.2 NO 1000.9 9.3 9.3 NO CBIN11603 B CI10449 Curb Inlet 1001.1 1012.0 10.9 1001.4 2.2 2.2 NO 1001.5 3.5 3.5 NO 1001.6 5.1 5.1 NO 1012.1 5.8 5.8 NO CLEN11311 B ZCO13041 Cleanout 996.9 1009.4 12.5 998.5 6.1 37.3 NO 999.2 10.2 62.7 NO 1005.9 15.3 93.3 NO 1009.4 17.4 108.7 NO CBIN11604 B CI10450 Curb Inlet 998.3 1010.7 12.3 999.9 2.4 29.5 NO 1000.9 3.8 49.8 NO 1010.7 5.5 74.0 NO 1010.7 6.1 86.5 NO CBIN11605 B CI10451 Curb Inlet 999.9 1011.4 11.4 999.9 0.0 0.0 NO 999.9 0.0 0.0 NO 1001.4 0.0 2.1 NO 1011.4 0.0 4.0 NO CLEN11312 B ZCO13042 Cleanout 1006.8 1018.3 11.6 1007.8 8.6 27.3 NO 1008.2 14.1 46.4 NO 1009.0 20.8 69.0 NO 1018.4 23.6 81.1 NO CLEN11313 B ZCO13043 Cleanout 1018.7 1030.7 12.0 1019.5 2.9 19.2 NO 1019.7 4.6 33.1 NO 1020.0 6.7 49.4 NO 1020.1 7.5 55.4 NO CBIN11606 B CI10452 Curb Inlet 1021.5 1033.2 11.7 1021.5 0.0 0.0 NO 1021.5 0.0 0.0 NO 1021.5 0.0 0.0 NO 1021.5 0.0 0.0 NO CBIN11607 B CI10453 Curb Inlet 1022.2 1033.8 11.6 1022.2 0.0 0.0 NO 1022.2 0.0 0.0 NO 1022.2 0.0 0.0 NO 1022.2 0.0 0.0 NO CBIN11608 B CI10454 Curb Inlet 1024.3 1036.3 12.0 1025.1 0.0 16.4 NO 1025.4 0.0 28.8 NO 1025.7 0.0 43.1 NO 1025.9 0.0 48.6 NO CBIN11609 B CI10455 Curb Inlet 1025.5 1036.8 11.4 1025.5 0.0 0.0 NO 1025.5 0.0 0.0 NO 1025.7 0.0 0.1 NO 1025.9 0.0 0.1 NO CLEN11314 B ZCO12974 Cleanout 1045.1 1056.6 11.5 1045.8 0.0 16.4 NO 1046.0 0.0 28.8 NO 1046.3 0.0 43.1 NO 1046.4 0.0 48.5 NO CBIN11610 B CI10456 Curb Inlet 1053.3 1067.8 14.5 1054.1 7.7 16.4 NO 1054.4 13.7 28.7 NO 1054.8 20.7 43.0 NO 1055.0 23.6 48.5 NO CBIN11611 B CI10457 Curb Inlet 1054.8 1066.5 11.7 1055.7 4.1 8.9 NO 1056.0 6.9 15.4 NO 1056.5 10.2 23.3 NO 1056.9 11.6 26.7 NO CBIN11612 B CI10458 Curb Inlet 1056.0 1066.5 10.5 1056.0 0.0 0.0 NO 1056.0 0.0 0.0 NO 1056.5 0.0 0.1 NO 1056.9 0.0 0.3 NO CLEN11315 B ZCO13044 Cleanout 1060.1 1070.1 10.0 1060.6 5.0 5.0 NO 1060.8 8.9 8.9 NO 1060.9 13.5 13.5 NO 1061.0 15.4 15.4 NO INLT10773 B ZINL13045 Inlet 1065.3 1073.9 8.6 1065.3 0.0 0.0 NO 1065.3 0.0 0.0 NO 1065.3 0.0 0.0 NO 1065.3 0.0 0.0 NO INLT10774 B ZINL11773 Inlet 982.3 989.6 7.3 982.3 0.0 0.0 NO 982.3 0.0 0.0 NO 982.3 0.0 0.0 NO 982.3 0.0 0.0 NO CLEN11316 B ZCO11774 Cleanout 966.4 974.9 8.5 966.8 2.1 4.0 NO 966.9 3.3 6.4 NO 967.0 4.8 9.3 NO 967.0 5.5 10.4 NO OTHR11313 B ZOTHER10500Other 947.3 956.4 9.1 947.6 0.0 4.0 NO 947.7 0.0 6.3 NO 948.0 0.0 10.7 NO 956.5 0.0 18.8 NO CLEN11317 B ZCO12905 Cleanout 939.7 952.5 12.8 940.2 0.0 4.0 NO 940.3 0.0 6.3 NO 952.6 0.0 21.1 NO 953.0 0.0 34.0 NO CLEN11318 B ZCO12906 Cleanout 938.2 950.9 12.7 939.1 7.6 11.5 NO 939.4 12.1 18.2 NO 950.9 17.7 31.6 NO 953.0 20.0 50.3 YES CBIN11613 B CI10459 Curb Inlet 943.2 950.7 7.5 943.2 0.0 0.0 NO 943.2 0.0 0.0 NO 950.7 0.0 10.1 NO 952.8 0.0 16.9 YES CBIN11614 B CI10460 Curb Inlet 941.7 951.6 9.9 941.7 0.0 0.0 NO 941.7 0.0 0.0 NO 951.6 0.0 7.2 NO 952.7 0.0 8.9 YES CBIN11615 B CI10461 Curb Inlet 942.4 951.5 9.2 942.4 0.0 0.0 NO 942.4 0.0 0.0 NO 951.7 0.0 10.4 NO 953.0 0.0 14.1 YES CBIN11616 B CI1694 Curb Inlet 1209.5 1221.5 12.0 1210.5 0.0 10.7 NO 1210.8 0.0 17.5 NO 1211.4 0.0 26.2 NO 1221.5 0.0 30.4 NO CBIN11617 B CI1693 Curb Inlet 1210.4 1221.5 11.1 1211.7 0.0 10.7 NO 1212.8 0.0 17.5 NO 1214.1 0.0 26.2 NO 1221.5 0.0 30.5 NO INLT10775 B ZINL12703 Inlet 1214.8 1221.5 6.7 1215.2 10.7 10.7 NO 1215.3 17.5 17.5 NO 1215.6 26.1 26.1 NO 1221.5 29.7 29.7 NO CLEN11319 B ZCO10695 Cleanout 1206.1 1215.5 9.5 1206.8 3.7 13.9 NO 1207.0 6.1 23.0 NO 1207.3 9.2 33.8 NO 1207.4 10.5 40.3 NO INLT10776 B ZINL10696 Inlet 1196.0 1204.7 8.6 1196.0 0.0 0.0 NO 1196.0 0.0 0.0 NO 1196.0 0.0 0.0 NO 1196.0 0.0 0.0 NO CBIN11618 B CI1691 Curb Inlet 1193.6 1204.3 10.7 1193.6 0.0 0.0 NO 1193.6 0.0 0.0 NO 1193.8 0.0 0.1 NO 1194.0 0.0 0.2 NO CBIN11619 B CI1692 Curb Inlet 1192.4 1204.5 12.0 1193.2 3.1 16.7 NO 1193.5 4.8 27.4 NO 1193.8 6.9 40.3 NO 1194.0 7.8 47.3 NO CLEN11320 B ZCO11076 Cleanout 1180.5 1190.2 9.7 1181.3 0.0 16.7 NO 1181.5 0.0 27.4 NO 1181.8 0.0 40.3 NO 1181.9 0.0 47.0 NO CBIN11620 B CI1689 Curb Inlet 1163.0 1173.8 10.7 1163.0 0.0 0.0 NO 1163.3 0.0 0.0 NO 1163.6 0.0 0.1 NO 1163.8 0.0 0.1 NO CBIN11621 B CI1690 Curb Inlet 1162.2 1174.0 11.8 1163.0 2.5 18.9 NO 1163.3 4.1 31.1 NO 1163.6 6.0 45.7 NO 1163.8 6.8 53.3 NO CLEN11321 B ZCO12155 Cleanout 1158.4 1170.2 11.7 1159.4 5.3 30.7 NO 1159.7 8.4 50.2 NO 1160.0 12.2 73.9 NO 1160.2 13.7 85.2 NO CBIN11622 B CI10462 Curb Inlet 1160.2 1171.8 11.6 1160.8 0.0 7.0 NO 1161.0 0.0 11.5 NO 1161.2 0.0 17.2 NO 1161.3 0.0 19.5 NO CBIN11623 B CI10463 Curb Inlet 1161.7 1172.6 10.9 1161.7 0.0 0.0 NO 1161.7 0.0 0.0 NO 1161.7 0.0 0.0 NO 1161.7 0.0 0.0 NO CLEN11322 B ZCO12975 Cleanout 1166.4 1177.5 11.2 1167.0 0.9 7.1 NO 1167.2 1.4 11.6 NO 1167.5 2.1 17.3 NO 1167.6 2.3 19.7 NO CBIN11624 B CI10464 Curb Inlet 1177.7 1185.4 7.7 1177.7 0.0 0.0 NO 1177.7 0.0 0.0 NO 1177.7 0.0 0.0 NO 1177.7 0.0 0.0 NO CBIN11625 B CI10695 Curb Inlet 1170.3 1185.3 14.9 1171.0 6.4 6.4 NO 1171.2 10.5 10.5 NO 1171.4 15.7 15.7 NO 1171.5 17.8 17.8 NO CLEN11323 B ZCO12156 Cleanout 1152.6 1168.3 15.7 1154.4 17.0 42.0 NO 1155.1 27.6 67.0 NO 1156.2 40.9 98.3 NO 1156.8 46.3 111.4 NO CLEN11324 B ZCO10697 Cleanout 1151.5 1164.2 12.6 1152.8 0.9 72.6 NO 1153.2 1.5 114.6 NO 1153.6 2.3 164.9 NO 1153.8 2.6 184.2 NO CLEN11325 B ZCO10699 Cleanout 1141.0 1154.0 12.9 1142.2 0.0 72.6 NO 1142.6 0.0 114.6 NO 1143.0 0.0 164.9 NO 1143.4 0.0 184.6 NO CBIN11626 B CI1688 Curb Inlet 1117.5 1130.9 13.3 1119.0 6.3 83.4 NO 1119.5 10.0 132.4 NO 1130.9 14.7 197.1 NO 1130.9 16.6 214.8 NO CBIN11627 B CI10465 Curb Inlet 1119.5 1127.0 7.5 1120.2 6.2 6.2 NO 1120.5 10.3 10.3 NO 1127.0 15.3 15.3 NO 1127.1 17.4 17.4 NO CLEN11326 B ZCO12157 Cleanout 1109.4 1123.4 14.0 1110.9 0.0 83.5 NO 1111.6 0.0 132.6 NO 1123.4 0.0 193.2 NO 1123.4 0.0 214.8 NO SEPR10027 B ZSEP10043 Separator 1107.6 1122.1 14.6 1109.3 0.0 83.5 NO 1110.5 0.0 132.6 NO 1122.1 0.0 193.5 NO 1121.7 0.0 214.8 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 109 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR11314 B ZOTHER10501Other 1518.3 1531.9 13.6 1518.5 1.9 1.9 NO 1518.5 3.0 3.0 NO 1518.6 4.3 4.3 NO 1518.6 4.9 4.9 NO INLT10777 B ZINL10700 Inlet 1506.5 1515.2 8.8 1506.6 0.0 1.9 NO 1506.7 0.0 3.0 NO 1506.7 0.0 4.3 NO 1506.7 0.0 4.9 NO CLEN11327 B ZCO10701 Cleanout 1483.2 1491.2 8.0 1483.4 0.0 1.9 NO 1483.5 0.0 3.0 NO 1483.5 0.0 4.3 NO 1483.6 0.0 4.9 NO CBIN11628 B CI10466 Curb Inlet 1473.2 1487.6 14.4 1473.6 3.7 5.6 NO 1473.7 5.9 8.8 NO 1473.8 8.6 12.9 NO 1473.9 9.8 14.5 NO INLT10778 B ZINL12704 Inlet 1463.5 1476.3 12.8 1464.1 6.7 12.1 NO 1464.2 10.6 19.1 NO 1464.4 15.5 27.9 NO 1464.4 17.4 31.5 NO CLEN11328 B ZCO13046 Cleanout 1451.7 1462.5 10.8 1452.2 1.2 13.2 NO 1452.4 1.9 20.9 NO 1452.5 2.8 30.6 NO 1452.5 3.1 34.4 NO CBIN11629 B CI10469 Curb Inlet 1426.2 1438.5 12.3 1426.8 1.8 14.9 NO 1426.9 2.8 23.6 NO 1427.1 4.1 34.4 NO 1427.1 4.6 38.8 NO CBIN11630 B CI10471 Curb Inlet 1396.6 1408.7 12.1 1397.2 3.9 18.5 NO 1397.4 6.1 29.2 NO 1397.5 8.9 42.7 NO 1397.6 10.0 48.2 NO CBIN11631 B CI10473 Curb Inlet 1373.5 1385.6 12.1 1374.2 2.7 21.0 NO 1374.4 4.2 33.2 NO 1374.6 6.1 48.4 NO 1374.7 6.9 54.6 NO CLEN11329 B ZCO13047 Cleanout 1359.4 1370.1 10.7 1360.1 0.0 21.0 NO 1360.3 0.0 33.2 NO 1360.5 0.0 48.5 NO 1360.6 0.0 54.7 NO CLEN11330 B ZCO13048 Cleanout 1352.5 1368.2 15.6 1353.5 0.0 21.0 NO 1353.8 0.0 33.2 NO 1354.1 0.0 48.5 NO 1354.2 0.0 54.7 NO OTLT10211 B ZINL12158 Outlet 1351.7 1355.7 4.0 1352.7 8.5 28.9 NO 1352.8 13.4 45.6 NO 1353.0 19.5 66.5 NO 1353.0 21.9 75.0 NO INLT10779 B ZINL12159 Inlet 1398.4 1402.4 4.0 1398.4 0.0 0.0 NO 1398.4 0.0 0.0 NO 1398.4 0.0 0.0 NO 1398.4 0.0 0.0 NO CLEN11331 B ZCO12705 Cleanout 1350.5 1357.0 6.5 1350.5 0.0 0.0 NO 1350.5 0.0 0.0 NO 1350.5 0.0 0.0 NO 1350.5 0.0 0.0 NO CLEN11332 B ZCO12706 Cleanout 1342.7 1350.9 8.2 1343.1 4.4 4.4 NO 1343.2 7.1 7.1 NO 1343.3 10.5 10.5 NO 1343.3 11.9 11.9 NO CBIN11632 B CI10475 Curb Inlet 1336.5 1347.2 10.7 1336.9 0.0 4.3 NO 1337.0 0.0 7.1 NO 1337.2 0.0 10.4 NO 1337.2 0.0 11.8 NO CBIN11633 B CI10476 Curb Inlet 1337.9 1349.0 11.1 1337.9 0.0 0.0 NO 1337.9 0.0 0.0 NO 1337.9 0.0 0.0 NO 1337.9 0.0 0.0 NO CBIN11634 B CI10477 Curb Inlet 1327.4 1337.0 9.5 1327.8 0.0 3.0 NO 1328.0 0.0 6.6 NO 1328.2 0.0 10.4 NO 1328.2 0.0 12.1 NO CBIN11635 B CI10478 Curb Inlet 1326.0 1336.9 10.9 1326.4 2.2 5.1 NO 1326.6 3.6 10.0 NO 1327.1 5.3 15.6 NO 1327.4 6.0 17.9 NO CLEN11333 B ZCO12160 Cleanout 1324.4 1332.4 8.0 1325.8 11.6 20.8 NO 1326.4 21.9 38.6 NO 1327.0 33.6 59.1 NO 1327.4 38.5 67.5 NO CLEN11334 B ZCO12161 Cleanout 1323.4 1332.6 9.2 1323.8 0.0 20.9 NO 1324.0 0.0 38.8 NO 1324.1 0.0 58.9 NO 1324.2 0.0 66.9 NO INLT10780 B ZINL12162 Inlet 1251.8 1258.6 6.8 1252.3 0.0 20.9 NO 1252.4 0.0 38.8 NO 1252.6 0.0 58.9 NO 1252.6 0.0 66.9 NO INLT10781 B ZINL12163 Inlet 1341.2 1345.2 4.0 1341.2 0.0 0.0 NO 1341.2 0.0 0.0 NO 1341.2 0.0 0.0 NO 1341.2 0.0 0.0 NO CLEN11335 B ZCO10702 Cleanout 1334.9 1341.4 6.5 1335.3 0.8 3.0 NO 1335.4 1.8 6.6 NO 1335.5 3.0 10.5 NO 1335.6 3.4 12.1 NO INLT10782 B ZINL10703 Inlet 1338.5 1346.7 8.2 1338.8 2.2 2.2 NO 1339.0 4.8 4.8 NO 1339.1 7.5 7.5 NO 1339.2 8.7 8.7 NO CBIN11636 B CI10479 Curb Inlet 1278.2 1289.9 11.7 1278.2 0.0 0.0 NO 1278.2 0.0 0.0 NO 1278.2 0.0 0.0 NO 1278.2 0.0 0.0 NO CLEN11336 B ZCO12977 Cleanout 1265.2 1277.1 11.9 1265.2 0.0 0.0 NO 1265.2 0.0 0.0 NO 1265.2 0.0 0.0 NO 1265.2 0.0 0.0 NO CBIN11637 B CI10671 Curb Inlet 1251.6 1263.7 12.1 1251.6 0.0 0.0 NO 1251.6 0.0 0.0 NO 1251.6 0.0 0.0 NO 1251.6 0.0 0.0 NO CLEN11337 B ZCO11077 Cleanout 1248.4 1260.3 11.9 1248.4 0.0 0.0 NO 1248.4 0.0 0.0 NO 1248.4 0.0 0.0 NO 1248.4 0.0 0.0 NO CBIN11638 B CI10696 Curb Inlet 1236.1 1249.3 13.2 1236.1 0.0 0.0 NO 1236.1 0.0 0.0 NO 1236.1 0.0 0.0 NO 1236.1 0.0 0.0 NO OTHR11315 B ZINL12978 Other 1238.2 1244.9 6.7 1238.2 0.0 0.0 NO 1238.2 0.0 0.0 NO 1238.2 0.0 0.0 NO 1238.2 0.0 0.0 NO CLEN11338 B ZCO11775 Cleanout 1231.1 1241.8 10.7 1232.1 20.5 20.5 NO 1232.5 38.0 38.0 NO 1233.0 58.0 58.0 NO 1233.2 66.3 66.3 NO CBIN11639 B CI1114 Curb Inlet 1228.5 1238.6 10.0 1229.5 0.0 20.4 NO 1229.9 0.0 37.7 NO 1230.4 0.0 57.5 NO 1230.7 0.0 64.3 NO CLEN11339 B ZCO10704 Cleanout 1223.4 1232.8 9.4 1223.9 2.4 22.6 NO 1224.1 3.9 41.4 NO 1224.2 5.7 62.8 NO 1224.3 6.4 70.3 NO INLT10783 B ZINL10705 Inlet 1239.3 1243.8 4.5 1239.3 0.0 0.0 NO 1239.3 0.0 0.0 NO 1239.3 0.0 0.0 NO 1239.3 0.0 0.0 NO INLT10784 B ZINL10706 Inlet 1218.5 1223.5 5.1 1218.5 0.0 0.0 NO 1218.5 0.0 0.0 NO 1218.5 0.0 0.0 NO 1218.5 0.0 0.0 NO CBIN11640 B CI1113 Curb Inlet 1210.6 1216.2 5.6 1210.7 1.9 1.9 NO 1210.8 3.4 3.4 NO 1210.9 5.2 5.2 NO 1210.9 5.9 5.9 NO CLEN11340 B ZCO12979 Cleanout 1196.0 1212.7 16.7 1197.0 6.8 8.6 NO 1212.7 11.9 15.2 NO 1212.7 17.9 23.4 NO 1212.7 20.4 26.3 NO CBIN11641 B CI10483 Curb Inlet 1197.8 1207.0 9.2 1197.8 0.0 0.0 NO 1198.2 0.0 1.3 NO 1207.0 0.0 8.3 NO 1207.0 0.0 8.9 NO CBIN11642 B CI10484 Curb Inlet 1198.5 1207.3 8.9 1198.5 0.0 0.0 NO 1198.5 0.0 0.0 NO 1207.4 0.0 6.1 NO 1207.4 0.0 6.4 NO CBIN11643 B CI1126 Curb Inlet 1194.2 1208.9 14.7 1194.6 1.1 9.3 NO 1194.7 1.7 16.7 NO 1194.8 2.4 25.7 NO 1194.8 2.7 28.4 NO CBIN11644 B CI10485 Curb Inlet 1192.5 1199.9 7.4 1193.1 3.3 3.3 NO 1193.3 5.3 5.3 NO 1193.5 7.9 7.9 NO 1193.6 8.9 8.9 NO CLEN11341 B ZCO10707 Cleanout 1190.9 1200.8 9.9 1191.1 0.0 3.3 NO 1191.2 0.0 5.3 NO 1191.3 0.0 7.8 NO 1191.3 0.0 8.8 NO CBIN11645 B CI1112 Curb Inlet 1170.1 1181.1 11.1 1170.7 0.0 3.3 NO 1170.8 0.0 5.3 NO 1171.1 0.0 7.8 NO 1171.2 0.0 8.8 NO CBIN11646 B CI1127 Curb Inlet 1169.0 1181.2 12.2 1169.4 2.8 6.0 NO 1169.5 4.6 9.6 NO 1169.7 6.7 14.2 NO 1169.7 7.6 16.0 NO INLT10785 B ZINL11078 Inlet 1156.8 1173.1 16.3 1156.8 0.0 6.0 NO 1156.8 0.0 9.6 NO 1156.8 0.0 14.2 NO 1156.8 0.0 16.0 NO OTHR11316 B ZOTHER10503Other 959.8 977.4 17.7 959.8 0.0 0.0 NO 959.8 0.0 0.0 NO 959.8 0.0 0.0 NO 959.8 0.0 0.0 NO OTHR11317 B ZOTHER10526Other 1238.1 1248.4 10.3 1238.1 0.0 0.0 NO 1238.1 0.0 0.0 NO 1238.1 0.0 0.0 NO 1238.1 0.0 0.0 NO CBIN11647 B CI10527 Curb Inlet 1177.7 1190.4 12.7 1178.1 2.4 2.4 NO 1178.2 3.8 3.8 NO 1178.3 5.5 5.5 NO 1178.4 6.2 6.2 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 110 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11648 B CI10561 Curb Inlet 610.9 620.8 9.9 611.2 1.2 2.0 NO 611.3 1.8 3.2 NO 611.4 2.6 4.6 NO 611.4 2.9 5.2 NO OTHR11318 B ZOTHER10793Other 615.2 624.1 8.9 615.4 0.9 0.9 NO 615.5 1.4 1.4 NO 615.5 2.1 2.1 NO 615.6 2.4 2.4 NO OTHR11319 B ZOTHER10794Other 599.7 614.9 15.2 600.2 0.0 5.3 NO 600.4 0.0 8.4 NO 614.9 0.0 17.7 NO 614.9 0.0 16.1 NO CLEN11342 B ZCO10021 Cleanout 619.9 629.5 9.6 619.9 0.0 0.0 NO 619.9 0.0 0.0 NO 619.9 0.0 0.0 NO 619.9 0.0 0.0 NO OTHR11320 B ZOTHER10795Other 600.6 615.3 14.7 601.0 3.4 5.4 NO 601.2 5.3 8.4 NO 615.3 7.7 12.2 NO 615.3 8.7 13.7 NO CBIN11649 B ZCI10565 Curb Inlet 604.9 614.6 9.7 604.9 0.0 0.0 NO 604.9 0.0 0.0 NO 605.0 0.0 0.6 NO 604.9 0.0 0.5 NO OTHR11321 B ZOTHER10803Other 608.0 618.6 10.7 608.0 0.0 0.0 NO 608.0 0.0 0.0 NO 608.0 0.0 0.0 NO 608.0 0.0 0.0 NO CBIN11650 B ZCI10567 Curb Inlet 590.5 602.3 11.8 590.5 0.0 0.0 NO 590.5 0.0 0.0 NO 590.5 0.0 0.0 NO 590.5 0.0 0.0 NO OTHR11322 B ZOTHER10804Other 636.9 645.4 8.5 637.4 3.8 3.8 NO 637.7 9.8 9.8 NO 645.7 16.3 17.7 NO 646.2 19.1 20.5 NO INLT10786 B ZINL10827 Inlet 573.3 587.6 14.3 573.8 0.0 6.9 NO 573.9 0.0 11.1 NO 574.0 0.0 16.4 NO 574.0 0.0 18.5 NO INLT10787 B ZINL10828 Inlet 574.9 586.8 11.9 575.6 1.3 6.9 NO 575.7 2.1 11.1 NO 575.9 3.0 16.3 NO 576.0 3.4 18.4 NO CBIN11651 B ZCI10568 Curb Inlet 578.9 589.3 10.4 579.2 1.9 1.9 NO 579.3 3.0 3.0 NO 579.4 4.5 4.5 NO 579.4 5.0 5.0 NO CBIN11652 B ZCI10569 Curb Inlet 582.6 596.8 14.3 582.6 0.0 0.0 NO 582.6 0.0 0.0 NO 582.6 0.0 0.0 NO 582.6 0.0 0.0 NO CBIN11653 B ZCI10701 Curb Inlet 583.9 595.7 11.8 584.3 2.6 2.6 NO 584.4 4.1 4.1 NO 584.5 6.0 6.0 NO 584.6 6.7 6.7 NO CLEN11343 B ZCO10829 Cleanout 577.5 588.4 10.8 578.1 1.4 3.8 NO 578.2 2.2 6.1 NO 578.4 3.3 9.0 NO 578.5 3.7 10.2 NO CBIN11654 B ZCI10572 Curb Inlet 588.9 602.3 13.3 588.9 0.0 0.0 NO 588.9 0.0 0.0 NO 588.9 0.0 0.0 NO 588.9 0.0 0.0 NO INLT10788 B ZINL11453 Inlet 619.0 626.7 7.7 619.6 1.9 3.6 NO 619.8 3.0 5.6 NO 620.1 4.3 8.2 NO 620.2 4.8 9.3 NO CBIN11655 B ZCI10583 Curb Inlet 626.4 631.8 5.4 626.7 1.7 1.7 NO 626.7 2.7 2.7 NO 626.8 4.0 4.0 NO 626.8 4.5 4.5 NO CLEN11344 B ZCO10835 Cleanout 611.0 618.8 7.8 611.4 0.9 2.9 NO 611.6 1.5 4.5 NO 611.7 2.2 6.6 NO 611.8 2.4 7.5 NO INLT10789 B ZINL10836 Inlet 612.6 625.0 12.3 613.0 1.1 1.1 NO 613.1 1.8 1.8 NO 613.1 2.6 2.6 NO 613.2 2.9 2.9 NO CBIN11656 B ZCI10584 Curb Inlet 611.8 618.8 7.0 612.1 1.2 1.2 NO 612.1 1.8 1.8 NO 612.2 2.7 2.7 NO 612.2 3.0 3.0 NO CBIN11657 B ZCI10585 Curb Inlet 613.0 622.9 9.9 613.2 0.9 0.9 NO 613.2 1.4 1.4 NO 613.3 2.0 2.0 NO 613.3 2.3 2.3 NO CLEN11345 B ZCO12927 Cleanout 968.1 974.1 6.0 968.4 2.0 2.0 NO 968.6 3.1 3.1 NO 968.7 4.5 4.5 NO 968.7 5.0 5.0 NO CLEN11346 B ZCO10864 Cleanout 961.4 976.2 14.9 961.6 0.0 1.3 NO 961.7 0.0 2.0 NO 961.8 0.0 2.9 NO 961.8 0.0 3.2 NO CLEN11347 B ZCO10865 Cleanout 958.0 975.1 17.0 959.3 17.1 26.1 NO 959.9 30.3 47.5 NO 960.8 45.8 71.9 NO 961.6 52.2 81.8 NO CLEN11348 B ZCO10866 Cleanout 958.8 974.9 16.1 959.6 0.0 8.0 NO 960.1 0.0 16.2 NO 960.8 0.0 25.3 NO 961.5 0.0 29.2 NO CLEN11349 B ZCO11804 Cleanout 964.2 980.2 15.9 964.7 0.0 4.4 NO 965.0 0.0 9.9 NO 965.2 0.0 15.9 NO 965.3 0.0 18.5 NO CLEN11350 B ZCO11805 Cleanout 968.0 983.5 15.5 968.5 4.4 4.4 NO 968.8 10.1 10.1 NO 969.1 16.1 16.1 NO 969.2 18.7 18.7 NO CLEN11351 B ZCO11806 Cleanout 963.5 976.7 13.2 963.8 1.3 1.3 NO 963.9 2.0 2.0 NO 964.0 2.9 2.9 NO 964.0 3.3 3.3 NO CBIN11658 B ZCI10612 Curb Inlet 962.3 977.5 15.2 962.3 0.0 0.0 NO 962.3 0.0 0.0 NO 962.3 0.0 0.0 NO 962.3 0.0 0.0 NO INLT10790 B ZINL10867 Inlet 977.0 986.0 9.0 977.0 0.0 0.0 NO 977.0 0.0 0.0 NO 977.0 0.0 0.0 NO 977.0 0.0 0.0 NO CLEN11352 B ZCO10868 Cleanout 973.6 985.3 11.7 973.6 0.0 0.0 NO 973.6 0.0 0.0 NO 973.6 0.0 0.0 NO 973.6 0.0 0.0 NO CLEN11353 B ZCO10869 Cleanout 968.8 981.1 12.2 968.8 0.0 0.0 NO 968.8 0.0 0.0 NO 968.8 0.0 0.0 NO 968.8 0.0 0.0 NO CLEN11354 B ZCO11573 Cleanout 966.6 980.3 13.7 966.6 0.0 0.0 NO 966.6 0.0 0.0 NO 966.6 0.0 0.0 NO 966.6 0.0 0.0 NO CBIN11659 B ZCI10613 Curb Inlet 967.1 980.7 13.6 967.1 0.0 0.0 NO 967.1 0.0 0.0 NO 967.1 0.0 0.0 NO 967.1 0.0 0.0 NO CLEN11355 B ZCO11003 Cleanout 956.3 974.7 18.5 957.5 2.9 28.9 NO 958.0 4.6 51.9 NO 958.6 6.6 77.5 NO 959.9 7.4 87.8 NO SEPR10028 B ZSEP10039 Separator 954.5 973.8 19.3 955.1 0.0 28.9 NO 955.3 0.0 51.9 NO 955.5 0.0 77.4 NO 964.9 0.0 88.3 NO CLEN11356 B ZCO10042 Cleanout 948.5 973.8 25.3 949.3 0.0 28.9 NO 949.6 0.0 51.9 NO 973.8 0.0 79.8 NO 973.8 0.0 103.7 NO INLT10791 B ZINL11807 Inlet 965.2 981.9 16.7 965.2 0.0 0.0 NO 965.2 0.0 0.0 NO 965.2 0.0 0.0 NO 965.2 0.0 0.0 NO CBIN11660 B ZCI10614 Curb Inlet 960.6 974.5 13.9 960.6 0.0 0.0 NO 960.6 0.0 0.0 NO 960.9 0.0 0.1 NO 961.6 0.0 0.4 NO CBIN11661 B ZCI10664 Curb Inlet 963.5 974.8 11.3 963.8 4.1 4.1 NO 963.8 6.7 6.7 NO 963.9 10.1 10.1 NO 963.9 11.4 11.4 NO CBIN11662 B CI1096 Curb Inlet 542.2 546.3 4.1 542.3 0.8 0.8 NO 542.4 1.3 1.3 NO 542.4 1.9 1.9 NO 542.4 2.1 2.1 NO INLT10792 B ZINL12878 Inlet 645.7 649.7 4.0 649.3 4.1 617.7 NO 652.4 6.9 895.0 YES 655.3 10.5 1129.6 YES 656.5 11.9 1221.1 YES OTLT10212 B ZOUT10396 Outlet 644.6 649.6 5.0 647.5 0.0 617.8 NO 648.0 0.0 894.7 NO 648.3 0.0 1128.9 NO 648.4 0.0 1220.2 NO CLEN11357 B ZCO11874 Cleanout 871.2 884.1 12.9 871.8 2.6 6.9 NO 872.0 4.3 11.2 NO 872.1 6.4 16.5 NO 872.2 7.3 18.6 NO OTHR11323 B ZOTHER11104Other 567.8 577.8 9.9 568.1 3.1 3.1 NO 568.2 5.0 5.0 NO 568.3 7.4 7.4 NO 568.3 8.3 8.3 NO OTHR11324 B ZOTHER11249Other 1169.9 1173.9 4.0 1170.9 0.0 36.1 NO 1171.2 0.0 63.8 NO 1171.4 0.0 95.8 NO 1171.5 0.0 109.1 NO OTLT10213 B OUT040 Outlet 683.1 687.1 4.0 683.2 0.0 272.4 NO 683.3 0.0 468.3 NO 683.4 0.0 643.3 NO 683.5 0.0 696.3 NO OTHR11325 B ZOTHER11251Other 849.6 853.6 4.0 849.7 5.5 58.0 NO 849.7 8.7 97.2 NO 849.7 12.8 129.9 NO 849.7 14.4 133.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 111 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTLT10214 B OUT041 Outlet 600.1 604.1 4.0 600.2 0.0 15.4 NO 600.2 0.0 25.0 NO 600.2 0.0 36.5 NO 600.2 0.0 39.0 NO OTHR11326 B ZOTHER11253Other 1203.6 1207.6 4.0 1204.8 0.0 27.9 NO 1205.0 0.0 45.7 NO 1205.1 0.0 67.7 NO 1205.2 0.0 76.7 NO OTHR11327 B ZOTHER11254Other 1202.1 1206.1 4.0 1202.6 0.0 22.6 NO 1202.9 0.0 41.4 NO 1203.1 0.0 62.8 NO 1203.2 0.0 70.3 NO OTHR11328 B ZOTHER11325Other 653.6 657.6 4.0 653.7 0.4 0.4 NO 653.7 0.9 0.9 NO 653.7 1.5 1.5 NO 653.7 1.7 1.7 NO OTHR11329 B ZOTHER11328Other 683.3 691.5 8.2 683.5 0.0 1.2 NO 683.6 0.0 3.2 NO 683.7 0.0 5.3 NO 683.7 0.0 6.2 NO OTHR11330 B ZOTHER11336Other 674.9 681.5 6.6 675.1 0.0 1.2 NO 675.2 0.0 3.2 NO 675.3 0.0 5.3 NO 675.4 0.0 6.2 NO OTHR11331 B ZOTHER11466Channel Confluence 531.3 561.3 30.0 535.0 9.9 691.4 NO 535.5 19.5 1066.3 NO 535.8 30.2 1386.5 NO 535.9 34.8 1500.9 NO OTHR11332 B ZOTHER11467Other 560.5 564.5 4.0 565.5 1.2 671.2 YES 566.6 2.2 1030.8 YES 567.4 3.4 1336.5 YES 567.7 3.9 1445.7 YES OTHR11333 B ZOTHER11468Other 575.5 579.5 4.0 581.1 0.8 670.9 YES 582.1 1.5 1030.1 YES 582.9 2.2 1335.4 YES 583.2 2.6 1444.6 YES OTHR11334 B ZOTHER11470Channel Confluence 595.9 599.9 4.0 602.3 0.0 671.0 YES 603.2 0.0 1029.4 YES 603.8 0.0 1334.3 YES 604.0 0.0 1443.1 YES OTHR11335 B ZOTHER11472Channel Confluence 615.5 645.5 30.0 618.1 2.2 633.3 NO 618.7 3.9 920.4 NO 619.0 5.9 1162.9 NO 619.8 6.7 1251.5 NO OTHR11336 B ZOTHER11474Channel Confluence 618.2 622.2 4.0 623.5 1.9 625.5 YES 624.3 3.5 908.0 YES 624.9 5.3 1146.6 YES 625.1 6.1 1240.0 YES OTHR11337 B ZOTHER11475Channel Confluence 647.7 677.7 30.0 650.7 2.9 637.0 NO 652.7 5.9 1057.8 NO 655.4 9.2 1390.7 NO 656.6 10.7 1478.3 NO OTHR11338 B ZOTHER11476Channel Confluence 651.3 681.3 30.0 654.2 1.9 635.6 NO 654.9 3.5 1073.6 NO 655.7 5.3 1500.1 NO 656.8 6.1 1660.9 NO OTHR11339 B ZOTHER11477Channel Confluence 678.6 682.6 4.0 680.8 6.3 638.5 NO 681.3 11.6 1081.3 NO 681.7 17.9 1499.4 NO 681.8 20.5 1647.1 NO OTHR11340 B ZOTHER11478Channel Confluence 716.4 720.4 4.0 719.0 2.5 364.4 NO 719.6 4.3 609.4 NO 720.2 6.5 856.0 NO 720.4 7.4 954.2 NO OTHR11341 B ZOTHER11479Channel Confluence 765.2 795.2 30.0 768.0 2.7 224.3 NO 768.7 4.7 373.3 NO 769.1 7.3 522.6 NO 769.2 8.3 569.0 NO SEPR10029 B SEP10012 Separator 824.2 836.9 12.6 825.2 0.0 16.2 NO 825.6 0.0 26.4 NO 825.9 0.0 39.2 NO 826.1 0.0 44.5 NO OTHR11342 B ZOTHER11725Other 823.2 837.2 14.0 824.2 1.4 17.7 NO 824.5 2.2 28.7 NO 824.9 3.2 42.5 NO 825.0 3.6 48.2 NO DETB10009 B Detention Basin 980.6 984.6 4.0 982.2 28.0 54.1 NO 982.4 47.2 95.5 NO 982.6 70.6 147.0 NO 982.6 80.2 169.5 NO OTHR11343 B Other 1079.6 1109.6 30.0 1081.2 6.3 40.7 NO 1081.5 10.9 72.0 NO 1081.9 16.5 108.8 NO 1082.0 18.9 123.9 NO INLT10793 B Inlet 1203.8 1236.2 32.4 1203.8 0.0 0.0 NO 1203.8 0.0 0.0 NO 1203.8 0.0 0.0 NO 1203.8 0.0 0.0 NO OTHR11344 B Channel Confluence 848.9 852.9 4.0 851.2 7.8 125.9 NO 851.7 14.2 239.7 NO 852.3 21.8 369.0 NO 852.5 25.0 420.4 NO OTHR11345 B Channel Confluence 859.1 863.1 4.0 861.2 47.2 96.0 NO 861.7 90.6 174.1 NO 862.3 139.9 262.0 NO 862.5 160.6 305.2 NO OTHR11346 B ZOTHER11255Other 1126.4 1130.4 4.0 1127.1 1.7 16.9 NO 1127.3 3.0 28.5 NO 1127.5 4.5 43.4 NO 1127.5 5.1 49.2 NO DETB10010 B Detention Basin 1050.9 1054.9 4.0 1050.9 90.8 146.8 NO 1050.9 170.3 270.9 NO 1050.9 260.3 420.0 NO 1050.9 301.4 466.5 NO OTHR11347 B Other 1050.9 1054.9 4.0 1053.4 17.0 34.3 NO 1054.2 30.6 63.8 NO 1054.8 46.6 96.6 NO 1055.1 53.3 111.2 NO OTHR11348 B Other 1051.8 1055.8 4.0 1053.8 19.4 30.5 NO 1054.5 33.8 53.2 NO 1054.8 51.3 81.1 NO 1054.9 58.5 94.4 NO OTHR11349 B Other 682.2 686.2 4.0 683.0 36.3 36.3 NO 683.5 103.2 103.2 NO 683.9 181.1 181.1 NO 684.1 214.1 214.1 NO OTHR11350 B Other 542.6 571.6 29.0 543.2 46.5 75.1 NO 543.5 89.4 186.2 NO 543.8 139.5 311.7 NO 543.9 160.4 364.4 NO DETB10011 B Detention Basin 522.3 526.3 4.0 522.3 0.0 75.1 NO 522.3 0.0 186.2 NO 522.3 0.0 311.7 NO 522.3 0.0 364.4 NO OTHR11351 B Channel Confluence 517.5 521.5 4.0 521.2 0.0 798.7 NO 522.9 0.0 1167.5 YES 523.0 0.0 1557.4 YES 523.4 0.0 1701.2 YES OTHR11352 B Channel Confluence 599.8 603.8 4.0 603.8 1.0 667.5 NO 604.7 1.6 1024.1 NO 605.4 2.4 1327.0 YES 605.6 2.7 1435.3 YES OTHR11353 B Other 588.3 618.3 30.0 593.8 1.4 671.2 NO 594.9 2.2 1029.8 NO 595.9 3.3 1334.9 NO 596.2 3.7 1443.9 NO OTHR11354 B Other 540.4 570.4 30.0 541.2 0.0 75.1 NO 541.7 0.0 186.2 NO 542.0 0.0 311.7 NO 542.2 0.0 364.4 NO OTHR11355 B Other 600.6 604.6 4.0 604.9 0.0 662.3 NO 606.0 0.0 1016.3 YES 606.7 0.0 1316.4 YES 607.0 0.0 1423.8 YES OTHR11356 B Other 590.9 605.9 15.0 596.6 0.0 671.4 NO 597.8 0.0 1029.4 NO 598.6 0.0 1334.3 NO 598.8 0.0 1443.1 NO OTHR11357 B Other 639.2 661.7 22.5 640.4 0.0 36.3 NO 641.2 0.0 103.2 NO 642.0 0.0 181.1 NO 642.2 0.0 214.0 NO OTHR11358 B Other 619.7 642.2 22.5 621.1 0.0 36.3 NO 621.8 0.0 103.0 NO 622.3 0.0 180.7 NO 622.5 0.0 213.6 NO OTHR11359 B Other 600.2 622.7 22.5 601.2 0.0 36.3 NO 601.8 0.0 103.0 NO 602.3 0.0 180.4 NO 602.5 0.0 213.3 NO OTHR11360 B Other 580.6 603.1 22.5 581.7 0.0 36.3 NO 582.4 0.0 102.8 NO 582.9 0.0 180.0 NO 583.1 0.0 212.8 NO OTHR11361 B Other 561.1 583.6 22.5 562.1 0.0 36.3 NO 562.9 0.0 102.8 NO 563.4 0.0 179.8 NO 563.6 0.0 212.6 NO OTHR11362 B Other 529.0 544.0 15.0 530.9 0.0 75.1 NO 531.8 0.0 186.0 NO 532.9 0.0 310.8 NO 533.3 0.0 363.4 NO OTHR11363 B Other 523.3 538.3 15.0 525.6 0.0 73.7 NO 526.2 0.0 179.9 NO 526.3 0.0 290.5 NO 526.4 0.0 343.0 NO OTHR11364 B Other 526.7 541.7 15.0 532.2 0.0 688.4 NO 532.6 0.0 1065.2 NO 532.8 0.0 1386.0 NO 532.9 0.0 1500.5 NO OTHR11365 B Other 524.4 539.4 15.0 527.2 0.0 686.5 NO 527.6 0.0 1065.3 NO 528.0 0.0 1386.0 NO 528.1 0.0 1500.5 NO OTHR11366 B Other 522.1 537.1 15.0 525.0 0.0 690.9 NO 525.5 0.0 1063.9 NO 525.8 0.0 1385.1 NO 525.9 0.0 1500.0 NO OTHR11367 B Other 519.8 534.8 15.0 524.1 0.0 675.2 NO 524.2 0.0 1059.0 NO 524.6 0.0 1382.6 NO 524.7 0.0 1498.4 NO OTHR11368 B Other 554.0 569.6 15.6 559.7 0.0 671.0 NO 561.0 0.0 1030.7 NO 561.8 0.0 1336.4 NO 562.1 0.0 1445.7 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 112 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR11369 B Other 550.8 566.4 15.6 557.9 0.0 670.5 NO 558.9 0.0 1030.5 NO 559.7 0.0 1336.3 NO 559.9 0.0 1445.6 NO OTHR11370 B Other 547.5 563.1 15.6 553.2 0.0 670.2 NO 554.1 0.0 1030.4 NO 554.8 0.0 1336.2 NO 555.0 0.0 1445.6 NO OTHR11371 B Other 544.3 559.9 15.6 549.9 0.0 670.0 NO 550.7 0.0 1030.4 NO 551.2 0.0 1336.1 NO 551.4 0.0 1445.5 NO OTHR11372 B Other 541.0 556.6 15.6 545.3 0.0 669.8 NO 546.1 0.0 1030.3 NO 546.7 0.0 1336.1 NO 546.9 0.0 1445.5 NO OTHR11373 B Other 537.8 553.4 15.6 543.7 0.0 669.4 NO 544.4 0.0 1030.1 NO 544.9 0.0 1336.0 NO 545.0 0.0 1445.4 NO OTHR11374 B Other 534.5 550.2 15.6 537.8 0.0 668.5 NO 538.3 0.0 1029.6 NO 538.6 0.0 1335.7 NO 538.7 0.0 1445.3 NO OTHR11375 B Other 565.5 569.5 4.0 569.6 0.0 670.8 NO 570.5 0.0 1030.1 YES 571.3 0.0 1335.4 YES 571.5 0.0 1444.6 YES OTHR11376 B Other 581.9 598.3 16.4 588.2 0.0 671.0 NO 589.3 0.0 1029.7 NO 590.1 0.0 1334.8 NO 590.3 0.0 1443.9 NO OTHR11377 B Other 578.7 595.1 16.4 582.9 0.0 670.7 NO 583.8 0.0 1029.6 NO 584.5 0.0 1334.7 NO 584.7 0.0 1443.8 NO OTHR11378 B Other 607.9 624.1 16.2 612.9 0.0 632.4 NO 615.9 0.0 920.0 NO 618.5 0.0 1162.4 NO 619.6 0.0 1227.4 NO OTHR11379 B Other 616.8 632.0 15.1 621.6 0.0 624.7 NO 622.1 0.0 907.7 NO 622.4 0.0 1146.5 NO 622.5 0.0 1239.9 NO OTHR11380 B Other 616.2 631.3 15.1 619.0 0.0 624.9 NO 619.6 0.0 907.7 NO 619.9 0.0 1146.4 NO 620.3 0.0 1241.3 NO OTHR11381 B Other 635.8 639.8 4.0 639.8 0.0 617.5 NO 640.4 0.0 894.5 NO 640.8 0.0 1128.8 YES 641.0 0.0 1220.1 YES OTHR11382 B Other 631.4 635.4 4.0 634.5 0.0 616.9 NO 635.1 0.0 894.2 NO 635.6 0.0 1128.6 NO 635.7 0.0 1219.9 NO OTHR11383 B Other 627.0 631.0 4.0 629.9 0.0 616.6 NO 630.3 0.0 894.1 NO 630.6 0.0 1128.4 NO 630.7 0.0 1219.8 NO OTHR11384 B Other 622.6 626.6 4.0 624.6 0.0 616.4 NO 625.0 0.0 894.1 NO 625.4 0.0 1128.6 NO 625.6 0.0 1220.0 NO OTHR11385 B Other 646.5 650.5 4.0 650.0 0.0 630.4 NO 652.5 0.0 988.2 YES 655.3 0.0 1264.4 YES 656.6 0.0 1338.7 YES OTHR11386 B Other 645.9 649.9 4.0 649.6 0.0 618.1 NO 652.4 0.0 902.1 YES 655.3 0.0 1142.4 YES 656.5 0.0 1236.6 YES OTHR11387 B Other 648.9 678.9 30.0 652.3 0.0 632.8 NO 653.0 0.0 1070.5 NO 655.4 0.0 1496.2 NO 656.6 0.0 1601.9 NO OTHR11388 B Other 669.5 685.3 15.8 672.1 0.0 637.2 NO 672.6 0.0 1072.4 NO 673.0 0.0 1490.3 NO 673.1 0.0 1646.5 NO OTHR11389 B Other 665.0 680.8 15.8 667.9 0.0 633.8 NO 668.4 0.0 1066.9 NO 668.7 0.0 1487.0 NO 668.9 0.0 1644.6 NO OTHR11390 B Other 660.4 676.2 15.8 662.7 0.0 633.0 NO 663.2 0.0 1066.6 NO 663.5 0.0 1486.7 NO 663.6 0.0 1644.4 NO OTHR11391 B Other 655.9 671.7 15.8 658.3 0.0 630.4 NO 658.8 0.0 1064.2 NO 659.2 0.0 1485.5 NO 659.3 0.0 1643.2 NO OTHR11392 B Other 703.8 707.8 4.0 706.4 0.0 364.2 NO 707.0 0.0 609.3 NO 707.6 0.0 855.9 NO 707.7 0.0 954.2 NO OTHR11393 B Other 697.5 701.5 4.0 700.6 0.0 363.5 NO 701.4 0.0 608.5 NO 701.8 0.0 854.2 NO 701.9 0.0 953.7 NO OTHR11394 B Other 691.2 695.2 4.0 693.0 0.0 362.2 NO 693.4 0.0 608.1 NO 693.7 0.0 853.1 NO 693.8 0.0 953.2 NO OTHR11395 B Other 684.9 688.9 4.0 686.3 0.0 361.9 NO 686.5 0.0 607.6 NO 686.6 0.0 852.4 NO 686.7 0.0 952.8 NO OTHR11396 B Other 745.7 761.0 15.3 748.6 0.0 223.7 NO 749.3 0.0 372.5 NO 749.9 0.0 521.9 NO 750.1 0.0 568.3 NO OTHR11397 B Other 735.9 751.2 15.3 739.2 0.0 223.4 NO 740.0 0.0 371.8 NO 740.6 0.0 521.1 NO 740.8 0.0 567.5 NO OTHR11398 B Other 726.1 741.5 15.3 726.9 0.0 223.1 NO 727.2 0.0 371.2 NO 727.3 0.0 520.5 NO 727.4 0.0 567.1 NO OTHR11399 B Other 776.7 797.6 21.0 779.1 0.0 221.9 NO 779.8 0.0 374.3 NO 780.3 0.0 513.4 NO 780.5 0.0 556.8 NO OTHR11400 B Other 772.8 793.8 21.0 775.5 0.0 220.9 NO 776.1 0.0 366.2 NO 776.4 0.0 511.0 NO 776.5 0.0 554.4 NO OTHR11401 B Other 769.0 790.0 21.0 770.6 0.0 219.9 NO 770.9 0.0 365.0 NO 771.2 0.0 509.9 NO 771.2 0.0 552.6 NO OTHR11402 B Other 1146.1 1150.1 4.0 1147.4 0.0 27.8 NO 1147.7 0.0 45.5 NO 1147.9 0.0 67.5 NO 1148.0 0.0 76.5 NO OTHR11403 B Other 1117.3 1121.4 4.0 1118.3 0.0 27.5 NO 1118.5 0.0 45.1 NO 1118.6 0.0 67.0 NO 1118.7 0.0 76.1 NO OTHR11404 B Other 1088.6 1092.6 4.0 1089.4 0.0 27.5 NO 1089.7 0.0 45.1 NO 1089.9 0.0 66.8 NO 1090.0 0.0 75.8 NO OTHR11405 B Other 1059.8 1063.9 4.0 1061.3 0.0 27.3 NO 1061.6 0.0 44.7 NO 1061.8 0.0 66.3 NO 1061.9 0.0 75.3 NO OTHR11406 B Other 1031.1 1035.1 4.0 1031.7 0.0 27.1 NO 1031.9 0.0 44.3 NO 1032.1 0.0 65.8 NO 1032.2 0.0 74.8 NO OTHR11407 B Other 1002.3 1006.3 4.0 1002.8 0.0 27.0 NO 1002.9 0.0 44.1 NO 1003.1 0.0 65.6 NO 1003.1 0.0 74.5 NO OTHR11408 B Other 973.5 977.6 4.0 974.1 0.0 26.6 NO 974.3 0.0 43.8 NO 974.5 0.0 65.1 NO 974.5 0.0 74.0 NO OTHR11409 B Other 944.8 948.8 4.0 945.6 0.0 25.8 NO 945.8 0.0 42.7 NO 946.0 0.0 63.8 NO 946.1 0.0 72.7 NO OTHR11410 B Other 916.0 920.1 4.0 916.6 0.0 25.3 NO 916.8 0.0 42.2 NO 917.0 0.0 63.4 NO 917.0 0.0 72.3 NO OTHR11411 B Other 861.8 891.8 30.0 862.6 0.0 25.0 NO 863.2 0.0 41.9 NO 869.1 0.0 62.9 NO 871.6 0.0 71.8 NO OTHR11412 B Other 843.0 848.9 5.9 846.0 0.0 125.5 NO 847.1 0.0 232.9 NO 848.0 0.0 364.1 NO 848.4 0.0 418.6 NO OTHR11413 B Other 840.0 845.9 5.9 843.0 0.0 125.0 NO 844.0 0.0 230.3 NO 845.0 0.0 361.3 NO 845.3 0.0 417.0 NO OTHR11414 B Other 837.0 843.0 5.9 840.0 0.0 124.6 NO 840.9 0.0 230.4 NO 841.8 0.0 360.8 NO 841.9 0.0 416.9 NO OTHR11415 B Other 834.1 840.0 5.9 835.6 0.0 124.4 NO 836.1 0.0 230.0 NO 836.5 0.0 360.6 NO 836.6 0.0 416.9 NO OTHR11416 B Other 831.1 837.0 5.9 834.4 0.0 123.4 NO 834.8 0.0 229.4 NO 835.0 0.0 359.1 NO 835.1 0.0 416.6 NO OTHR11417 B Other 828.1 834.1 5.9 830.2 0.0 123.2 NO 830.5 0.0 230.0 NO 830.8 0.0 359.8 NO 831.0 0.0 416.5 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 113 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR11418 B Other 825.2 831.1 5.9 827.9 0.0 122.3 NO 828.4 0.0 229.6 NO 828.9 0.0 358.8 NO 829.1 0.0 416.1 NO OTHR11419 B Other 822.2 828.1 5.9 825.0 0.0 119.5 NO 825.5 0.0 228.8 NO 826.0 0.0 357.2 NO 826.2 0.0 415.4 NO OTHR11420 B Other 819.2 825.2 5.9 820.7 0.0 119.1 NO 821.3 0.0 228.8 NO 821.6 0.0 356.5 NO 822.8 0.0 415.0 NO OTHR11421 B Other 816.3 822.2 5.9 817.8 0.0 118.9 NO 818.1 0.0 228.8 NO 821.4 0.0 355.9 NO 822.7 0.0 414.5 NO OTHR11422 B Other 813.3 819.2 5.9 814.6 0.0 119.3 NO 818.0 0.0 227.5 NO 821.4 0.0 291.6 YES 822.7 0.0 294.9 YES OTHR11423 B Other 855.0 859.0 4.0 856.4 0.0 96.0 NO 856.8 0.0 174.1 NO 857.2 0.0 261.5 NO 857.3 0.0 304.6 NO OTHR11424 B Other 853.0 857.0 4.0 855.2 0.0 95.8 NO 856.0 0.0 173.7 NO 856.2 0.0 261.1 NO 856.5 0.0 304.1 NO OTHR11425 B Other 850.9 854.9 4.0 852.1 0.0 95.3 NO 852.4 0.0 172.6 NO 852.7 0.0 260.8 NO 852.8 0.0 298.3 NO OTHR11426 B Other 966.3 970.3 4.0 967.3 0.0 54.0 NO 967.6 0.0 95.5 NO 967.8 0.0 147.0 NO 967.9 0.0 169.5 NO OTHR11427 B Other 959.2 963.2 4.0 961.2 0.0 53.7 NO 961.6 0.0 94.9 NO 962.1 0.0 146.2 NO 962.3 0.0 168.7 NO OTHR11428 B Other 952.0 956.0 4.0 954.2 0.0 53.3 NO 954.8 0.0 94.5 NO 955.3 0.0 145.4 NO 955.5 0.0 167.9 NO OTHR11429 B Other 944.9 948.9 4.0 946.4 0.0 53.2 NO 946.8 0.0 94.3 NO 947.1 0.0 145.1 NO 947.3 0.0 167.7 NO OTHR11430 B Other 937.7 941.7 4.0 939.8 0.0 53.1 NO 940.4 0.0 94.2 NO 940.9 0.0 144.9 NO 941.1 0.0 167.5 NO OTHR11431 B Other 930.6 934.6 4.0 933.1 0.0 52.8 NO 933.7 0.0 93.9 NO 934.3 0.0 144.4 NO 934.5 0.0 167.0 NO OTHR11432 B Other 923.4 927.4 4.0 925.4 0.0 52.7 NO 925.9 0.0 93.8 NO 926.3 0.0 144.2 NO 926.4 0.0 166.8 NO OTHR11433 B Other 916.3 920.3 4.0 918.0 0.0 52.7 NO 918.5 0.0 93.8 NO 919.1 0.0 144.3 NO 919.3 0.0 166.9 NO OTHR11434 B Other 909.1 913.1 4.0 910.9 0.0 52.6 NO 911.5 0.0 93.7 NO 912.0 0.0 144.0 NO 912.2 0.0 166.7 NO OTHR11435 B Other 902.0 906.0 4.0 903.7 0.0 52.6 NO 904.1 0.0 93.6 NO 904.6 0.0 143.9 NO 904.7 0.0 166.6 NO OTHR11436 B Other 894.8 898.8 4.0 896.0 0.0 52.5 NO 896.4 0.0 93.5 NO 896.8 0.0 143.8 NO 896.9 0.0 166.5 NO OTHR11437 B Other 887.7 891.7 4.0 889.3 0.0 52.4 NO 889.6 0.0 93.4 NO 889.9 0.0 143.6 NO 890.0 0.0 166.3 NO OTHR11438 B Other 880.5 884.5 4.0 881.9 0.0 52.5 NO 882.3 0.0 93.5 NO 882.7 0.0 143.7 NO 882.8 0.0 166.4 NO OTHR11439 B Other 873.4 877.4 4.0 874.9 0.0 52.4 NO 875.3 0.0 93.3 NO 875.6 0.0 143.4 NO 875.8 0.0 166.1 NO OTHR11440 B Other 866.2 870.2 4.0 867.5 0.0 52.3 NO 867.8 0.0 93.2 NO 868.1 0.0 143.2 NO 868.2 0.0 165.9 NO OTHR11441 B Other 1064.4 1079.4 15.0 1066.1 0.0 40.6 NO 1066.6 0.0 71.9 NO 1067.1 0.0 108.6 NO 1067.2 0.0 123.8 NO OTHR11442 B Other 1056.8 1071.8 15.0 1058.5 0.0 40.4 NO 1059.0 0.0 71.5 NO 1059.5 0.0 108.2 NO 1059.6 0.0 123.3 NO OTHR11443 B Other 1049.2 1064.2 15.0 1051.0 0.0 40.2 NO 1051.5 0.0 71.2 NO 1051.8 0.0 108.0 NO 1051.9 0.0 123.1 NO OTHR11444 B Other 1041.6 1056.6 15.0 1043.8 0.0 39.9 NO 1044.4 0.0 70.8 NO 1044.9 0.0 107.7 NO 1045.0 0.0 122.8 NO OTHR11445 B Other 1033.9 1048.9 15.0 1035.5 0.0 39.7 NO 1036.0 0.0 70.4 NO 1036.4 0.0 107.1 NO 1036.6 0.0 122.5 NO OTHR11446 B Other 1026.3 1041.3 15.0 1028.0 0.0 39.6 NO 1028.7 0.0 70.2 NO 1029.3 0.0 106.8 NO 1029.4 0.0 122.1 NO OTHR11447 B Other 1018.7 1033.7 15.0 1020.3 0.0 39.5 NO 1020.8 0.0 69.8 NO 1021.4 0.0 107.0 NO 1021.5 0.0 122.0 NO OTHR11448 B Other 1011.1 1026.1 15.0 1012.5 0.0 39.5 NO 1013.0 0.0 69.7 NO 1013.4 0.0 106.5 NO 1013.6 0.0 121.8 NO OTHR11449 B Other 1003.5 1018.5 15.0 1004.9 0.0 39.3 NO 1005.3 0.0 69.7 NO 1005.7 0.0 106.4 NO 1005.8 0.0 121.5 NO OTHR11450 B Other 995.9 1010.9 15.0 997.8 0.0 39.1 NO 998.4 0.0 69.4 NO 998.9 0.0 106.1 NO 999.0 0.0 121.2 NO OTHR11451 B Other 988.3 1003.3 15.0 988.6 0.0 38.9 NO 988.7 0.0 69.0 NO 988.7 0.0 105.6 NO 988.8 0.0 120.4 NO OTHR11452 B Other 1133.8 1149.8 16.0 1134.6 0.0 36.1 NO 1134.9 0.0 63.8 NO 1135.1 0.0 95.8 NO 1135.2 0.0 109.1 NO OTHR11453 B Other 1115.7 1131.7 16.0 1118.0 0.0 35.8 NO 1118.4 0.0 63.4 NO 1118.9 0.0 95.4 NO 1119.1 0.0 108.6 NO OTHR11454 B Other 1097.7 1113.7 16.0 1098.8 0.0 35.2 NO 1099.1 0.0 62.5 NO 1099.4 0.0 94.3 NO 1099.5 0.0 107.3 NO OTHR11455 B Other 1066.4 1070.4 4.0 1067.4 0.0 24.6 NO 1067.7 0.0 39.3 NO 1067.8 0.0 57.6 NO 1067.9 0.0 64.9 NO OTHR11456 B Other 1053.5 1057.5 4.0 1055.0 0.0 24.5 NO 1055.2 0.0 39.0 NO 1055.5 0.0 57.2 NO 1055.6 0.0 64.6 NO OTHR11457 B Other 1040.5 1044.5 4.0 1041.4 0.0 23.8 NO 1041.6 0.0 38.2 NO 1041.8 0.0 55.8 NO 1041.8 0.0 63.0 NO OTHR11458 B Other 1027.6 1031.6 4.0 1028.4 0.0 23.7 NO 1028.7 0.0 37.9 NO 1028.9 0.0 55.4 NO 1029.0 0.0 62.6 NO OTHR11459 B Other 1014.6 1018.6 4.0 1016.1 0.0 23.3 NO 1016.3 0.0 37.4 NO 1016.5 0.0 54.9 NO 1016.6 0.0 62.1 NO OTHR11460 B Other 1001.6 1005.6 4.0 1002.5 0.0 23.3 NO 1002.7 0.0 37.3 NO 1003.0 0.0 54.8 NO 1003.1 0.0 62.0 NO OTHR11461 B Other 988.7 992.7 4.0 989.9 0.0 23.1 NO 990.2 0.0 37.1 NO 990.4 0.0 54.3 NO 990.5 0.0 61.5 NO OTHR11462 B Other 975.7 979.7 4.0 976.7 0.0 22.9 NO 977.0 0.0 36.8 NO 977.2 0.0 54.0 NO 977.3 0.0 61.2 NO OTHR11463 B Other 962.8 966.8 4.0 963.9 0.0 22.8 NO 964.1 0.0 36.6 NO 964.4 0.0 53.7 NO 964.5 0.0 60.9 NO OTHR11464 B Other 949.8 953.8 4.0 950.5 0.0 22.6 NO 950.6 0.0 36.4 NO 950.8 0.0 53.5 NO 950.9 0.0 60.6 NO OTHR11465 B Other 936.8 940.8 4.0 937.7 0.0 22.5 NO 937.9 0.0 36.3 NO 938.0 0.0 53.3 NO 938.1 0.0 60.4 NO OTHR11466 B Other 923.9 927.9 4.0 925.5 0.0 22.4 NO 925.8 0.0 36.1 NO 926.0 0.0 53.0 NO 926.1 0.0 60.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 114 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTHR11467 B Other 910.9 914.9 4.0 912.1 0.0 22.1 NO 912.3 0.0 35.7 NO 912.6 0.0 52.5 NO 912.6 0.0 59.2 NO OTHR11468 B Other 898.0 902.0 4.0 898.9 0.0 22.0 NO 899.1 0.0 35.5 NO 899.3 0.0 52.3 NO 899.4 0.0 59.1 NO OTHR11469 B Other 885.0 889.0 4.0 885.9 0.0 22.0 NO 886.1 0.0 35.5 NO 886.4 0.0 52.1 NO 886.4 0.0 58.9 NO OTHR11470 B Other 872.0 876.0 4.0 872.9 0.0 21.9 NO 873.1 0.0 35.4 NO 873.3 0.0 52.0 NO 873.4 0.0 58.8 NO OTHR11471 B Other 1285.3 1293.2 7.9 1286.9 0.0 28.8 NO 1287.1 0.0 45.5 NO 1287.4 0.0 66.3 NO 1287.5 0.0 74.9 NO OTHR11472 B Other 1252.1 1260.0 7.9 1252.8 0.0 28.2 NO 1253.0 0.0 44.5 NO 1253.1 0.0 64.8 NO 1253.2 0.0 73.1 NO OTHR11473 B Other 1219.0 1226.8 7.9 1220.0 0.0 28.1 NO 1220.3 0.0 44.4 NO 1220.5 0.0 64.7 NO 1220.6 0.0 73.0 NO OTHR11474 B Other 1185.8 1193.6 7.9 1186.7 0.0 27.9 NO 1186.8 0.0 44.1 NO 1186.9 0.0 64.3 NO 1186.9 0.0 72.6 NO OTHR11475 B Other 1171.8 1175.8 4.0 1173.8 0.0 22.5 NO 1174.1 0.0 41.2 NO 1174.3 0.0 62.6 NO 1174.4 0.0 70.2 NO OTHR11476 B Other 1156.7 1160.7 4.0 1157.7 0.0 22.1 NO 1158.1 0.0 40.9 NO 1158.5 0.0 62.1 NO 1158.6 0.0 70.1 NO OTHR11477 B Other 1141.6 1145.6 4.0 1142.6 0.0 22.1 NO 1143.0 0.0 40.8 NO 1143.4 0.0 61.6 NO 1143.5 0.0 69.8 NO OTHR11478 B Other 1126.5 1130.5 4.0 1127.6 0.0 22.0 NO 1128.0 0.0 40.5 NO 1128.2 0.0 61.4 NO 1128.3 0.0 69.7 NO OTHR11479 B Other 1111.4 1115.4 4.0 1112.4 0.0 21.8 NO 1112.6 0.0 40.3 NO 1112.8 0.0 61.2 NO 1112.9 0.0 69.6 NO OTHR11480 B Other 1096.3 1100.3 4.0 1096.9 0.0 21.8 NO 1097.0 0.0 40.2 NO 1097.2 0.0 61.0 NO 1097.2 0.0 69.5 NO OTHR11481 B Other 1081.2 1085.2 4.0 1081.7 0.0 21.6 NO 1081.8 0.0 40.1 NO 1081.9 0.0 60.8 NO 1082.0 0.0 69.3 NO OTHR11482 B Other 1107.7 1111.7 4.0 1108.6 0.0 16.8 NO 1108.8 0.0 27.5 NO 1109.1 0.0 42.6 NO 1109.2 0.0 48.7 NO OTHR11483 B Other 1098.4 1102.4 4.0 1099.6 0.0 16.4 NO 1099.8 0.0 26.7 NO 1100.1 0.0 41.3 NO 1100.2 0.0 47.4 NO OTHR11484 B Other 1089.1 1093.1 4.0 1089.9 0.0 16.2 NO 1090.1 0.0 26.5 NO 1090.4 0.0 40.9 NO 1090.4 0.0 47.0 NO OTHR11485 B Other 1079.8 1083.8 4.0 1081.3 0.0 16.1 NO 1081.5 0.0 26.3 NO 1081.7 0.0 40.6 NO 1081.8 0.0 46.7 NO OTHR11486 B Other 1070.4 1074.4 4.0 1071.1 0.0 15.9 NO 1071.2 0.0 26.2 NO 1071.4 0.0 40.2 NO 1071.5 0.0 46.5 NO CLEN11358 C ZCO10219 Cleanout 620.2 627.4 7.2 620.9 0.0 4.2 NO 621.1 0.0 6.7 NO 621.3 0.0 9.8 NO 621.4 0.0 10.9 NO CBIN11663 C CI0379 Curb Inlet 628.5 635.8 7.3 628.5 0.0 0.0 NO 628.5 0.0 0.0 NO 628.5 0.0 0.0 NO 628.5 0.0 0.0 NO CBIN11664 C CI0714 Curb Inlet 612.6 621.6 9.0 613.0 3.6 3.6 NO 613.1 5.8 5.8 NO 613.2 8.6 8.6 NO 613.2 9.7 9.7 NO CBIN11665 C CI0381 Curb Inlet 624.8 634.0 9.2 625.5 3.0 10.6 NO 625.7 4.6 16.9 NO 625.9 6.6 24.8 NO 626.0 7.4 28.0 NO CLEN11359 C ZCO10221 Cleanout 608.2 621.6 13.4 609.1 0.0 34.1 NO 609.3 0.0 55.9 NO 609.6 0.0 82.4 NO 609.7 0.0 92.3 NO CBIN11666 C CI0713 Curb Inlet 612.3 621.4 9.1 612.8 2.8 11.1 NO 612.9 4.7 19.7 NO 613.1 6.9 29.8 NO 613.2 7.9 34.0 NO CBIN11667 C CI0378 Curb Inlet 633.8 643.2 9.4 634.4 7.8 7.8 NO 634.6 12.5 12.5 NO 634.8 18.4 18.4 NO 634.9 20.9 20.9 NO CBIN11668 C CI0380 Curb Inlet 637.8 645.6 7.8 637.8 0.0 0.0 NO 637.8 0.0 0.0 NO 637.8 0.0 0.0 NO 637.8 0.0 0.0 NO CLEN11360 C ZCO11931 Cleanout 619.3 626.6 7.3 620.0 4.6 19.2 NO 620.2 7.2 30.4 NO 620.4 10.4 44.4 NO 620.5 11.7 50.0 NO CLEN11361 C ZCO11932 Cleanout 669.6 677.0 7.4 669.9 0.0 2.3 NO 670.0 0.0 3.5 NO 670.1 0.0 5.1 NO 670.1 0.0 5.7 NO CBIN11669 C CI1310 Curb Inlet 673.7 679.9 6.2 674.0 2.3 2.3 NO 674.1 3.5 3.5 NO 674.1 5.1 5.1 NO 674.2 5.7 5.7 NO CBIN11670 C CI0065 Curb Inlet 613.0 626.0 13.0 614.0 0.0 19.1 NO 614.3 0.0 30.3 NO 614.7 0.0 44.3 NO 614.9 0.0 49.9 NO CBIN11671 C CI1312 Curb Inlet 676.5 684.0 7.5 676.5 0.0 0.0 NO 676.5 0.0 0.0 NO 676.5 0.0 0.0 NO 676.5 0.0 0.0 NO CBIN11672 C CI0066 Curb Inlet 611.7 625.3 13.7 612.6 1.7 20.7 NO 612.9 2.6 32.7 NO 613.2 3.8 47.8 NO 613.3 4.2 53.8 NO CLEN11362 C ZCO12385 Cleanout 609.1 623.0 13.9 610.7 0.0 73.4 NO 611.3 0.0 125.4 NO 612.0 0.0 180.1 NO 612.5 0.0 203.6 NO CBIN11673 C CI0070 Curb Inlet 614.7 623.1 8.3 614.7 0.0 0.0 NO 614.7 0.0 0.0 NO 615.5 0.0 2.4 NO 616.9 0.0 6.5 NO CBIN11674 C CI0080 Curb Inlet 611.1 622.8 11.7 613.3 1.0 44.8 NO 614.1 1.6 77.9 NO 622.8 2.3 116.7 NO 622.8 2.6 133.0 NO CBIN11675 C CI1608 Curb Inlet 603.1 618.9 15.9 604.8 3.3 74.4 NO 605.5 5.2 128.8 NO 606.3 7.5 186.9 NO 607.7 8.5 208.3 NO CBIN11676 C CI1611 Curb Inlet 601.4 618.5 17.1 602.1 2.2 76.8 NO 602.3 3.4 132.9 NO 602.6 4.9 193.1 NO 602.6 5.5 216.3 NO INLT10794 C ZINL10223 Inlet 719.0 733.2 14.2 720.0 4.4 11.0 NO 720.6 9.3 23.8 NO 733.2 14.7 39.8 NO 733.2 17.0 47.3 NO INLT10795 C ZINL10224 Inlet 725.8 734.4 8.6 726.3 6.7 6.7 NO 726.6 14.6 14.6 NO 727.0 23.3 23.3 NO 727.7 27.0 27.0 NO CLEN11363 C ZCO10226 Cleanout 716.6 725.4 8.8 717.2 1.1 12.0 NO 717.5 2.0 25.4 NO 717.8 3.0 42.4 NO 717.9 3.4 49.5 NO CBIN11677 C CI0137 Curb Inlet 624.3 629.5 5.3 625.0 1.0 12.8 NO 625.2 1.5 19.6 NO 625.6 2.2 28.0 NO 629.5 2.5 32.0 NO CLEN11364 C ZCO12810 Cleanout 681.3 699.3 18.0 682.2 5.0 6.9 NO 682.5 7.8 10.9 NO 699.3 11.3 14.6 NO 699.3 12.7 17.7 NO CBIN11678 C CI1342 Curb Inlet 692.3 697.2 4.9 692.3 0.0 0.0 NO 692.3 0.0 0.0 NO 692.3 0.0 0.0 NO 692.3 0.0 0.0 NO CBIN11679 C CI1347 Curb Inlet 679.4 695.8 16.4 680.0 0.0 6.8 NO 680.2 0.0 10.7 NO 680.3 0.0 14.9 NO 680.3 0.0 17.6 NO CBIN11680 C CI0131 Curb Inlet 682.8 696.5 13.7 683.3 0.0 2.1 NO 683.5 0.0 3.5 NO 684.6 0.0 5.1 NO 696.5 0.0 7.0 NO CBIN11681 C CI0133 Curb Inlet 684.0 694.4 10.4 684.6 0.0 2.2 NO 684.7 0.0 3.6 NO 684.9 0.0 5.3 NO 686.4 0.0 6.0 NO CBIN11682 C CI0132 Curb Inlet 687.9 693.9 6.0 688.2 2.2 2.2 NO 688.3 3.6 3.6 NO 688.5 5.3 5.3 NO 688.5 6.0 6.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 115 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11683 C CI1343 Curb Inlet 673.1 685.1 12.0 673.1 0.0 0.0 NO 673.1 0.0 0.0 NO 673.1 0.0 0.0 NO 673.1 0.0 0.0 NO CBIN11684 C CI1346 Curb Inlet 670.1 681.9 11.8 670.7 5.7 12.0 NO 670.9 8.9 18.9 NO 671.1 12.9 26.4 NO 671.1 14.5 29.4 NO CBIN11685 C CI1340 Curb Inlet 648.8 658.3 9.5 648.8 0.0 0.0 NO 648.8 0.0 0.0 NO 648.8 0.0 0.0 NO 648.8 0.0 0.0 NO CBIN11686 C CI0136 Curb Inlet 646.6 653.2 6.7 647.1 3.2 3.2 NO 647.3 5.1 5.1 NO 647.5 7.6 7.6 NO 647.6 8.7 8.7 NO CBIN11687 C CI1345 Curb Inlet 651.7 657.2 5.5 651.7 0.0 0.0 NO 651.7 0.0 0.0 NO 651.7 0.0 0.0 NO 651.7 0.0 0.0 NO CBIN11688 C CI0134 Curb Inlet 645.7 652.2 6.6 646.0 0.0 3.1 NO 646.1 0.0 5.1 NO 646.2 0.0 7.6 NO 646.3 0.0 8.7 NO CBIN11689 C CI0139 Curb Inlet 627.6 633.0 5.4 628.5 7.0 10.1 NO 629.2 11.5 16.5 NO 633.7 17.1 24.5 NO 635.3 19.4 27.8 YES CBIN11690 C CI0077 Curb Inlet 615.5 628.1 12.6 616.8 1.4 44.0 NO 617.3 2.3 76.5 NO 618.3 3.3 114.6 NO 628.1 3.7 130.4 NO CBIN11691 C CI1313 Curb Inlet 664.5 672.3 7.8 664.9 3.1 3.1 NO 665.0 5.0 5.0 NO 665.1 7.4 7.4 NO 665.1 8.4 8.4 NO CBIN11692 C CI0124 Curb Inlet 682.5 693.8 11.3 682.9 2.5 2.5 NO 683.0 4.0 4.0 NO 683.1 5.9 5.9 NO 683.1 6.7 6.7 NO CBIN11693 C CI0117 Curb Inlet 661.2 671.9 10.7 661.9 0.0 10.2 NO 662.1 0.0 16.3 NO 662.3 0.0 24.0 NO 662.4 0.0 27.2 NO CBIN11694 C CI0116 Curb Inlet 679.1 691.3 12.2 679.7 4.7 7.2 NO 679.9 7.6 11.6 NO 680.1 11.2 17.1 NO 680.2 12.7 19.3 NO CBIN11695 C CI0071 Curb Inlet 628.3 639.5 11.2 628.3 0.0 0.0 NO 628.3 0.0 0.0 NO 628.3 0.0 0.0 NO 628.3 0.0 0.0 NO OTLT10215 C OUT068 Outlet 592.3 597.4 5.1 593.2 0.0 34.1 NO 593.4 0.0 56.0 NO 593.5 0.0 82.4 NO 593.6 0.0 92.4 NO CLEN11365 C ZCO11937 Cleanout 612.9 622.9 10.0 614.0 1.7 20.6 NO 614.4 2.6 31.9 NO 614.8 3.7 46.5 NO 615.0 4.2 51.9 NO CLEN11366 C ZCO10234 Cleanout 616.4 624.1 7.7 617.5 0.0 19.2 NO 617.8 0.0 29.5 NO 618.2 0.0 45.6 NO 618.4 0.0 50.9 NO CBIN11696 C CI0092 Curb Inlet 617.8 624.6 6.8 619.0 5.0 17.1 NO 619.5 7.7 26.9 NO 624.6 11.2 42.9 NO 624.6 12.6 49.3 NO CLEN11367 C ZCO10235 Cleanout 617.8 624.6 6.8 618.2 0.0 2.2 NO 618.4 0.0 3.4 NO 618.5 0.0 5.0 NO 618.7 0.0 5.6 NO CBIN11697 C CI0387 Curb Inlet 619.3 626.1 6.8 619.7 2.2 2.2 NO 619.8 3.5 3.5 NO 619.9 5.0 5.0 NO 620.0 5.6 5.6 NO CBIN11698 C CI0135 Curb Inlet 615.1 623.7 8.6 615.8 3.5 8.4 NO 616.1 5.8 15.2 NO 616.4 8.6 23.2 NO 616.6 9.7 26.5 NO CBIN11699 C CI0083 Curb Inlet 619.3 624.7 5.4 619.7 0.0 4.9 NO 619.9 0.0 9.5 NO 620.0 0.0 14.7 NO 620.1 0.0 16.9 NO INLT10796 C ZINL12389 Inlet 620.0 625.8 5.8 620.5 4.9 4.9 NO 620.8 9.5 9.5 NO 621.0 14.7 14.7 NO 621.1 16.9 16.9 NO CLEN11368 C ZCO10239 Cleanout 641.8 649.1 7.3 642.3 0.0 8.2 NO 642.4 0.0 13.0 NO 642.6 0.0 18.9 NO 642.6 0.0 21.3 NO CBIN11700 C CI1309 Curb Inlet 658.3 663.8 5.5 658.6 1.3 3.4 NO 658.7 2.0 5.3 NO 658.8 2.8 7.7 NO 658.8 3.2 8.7 NO CBIN11701 C CI1493 Curb Inlet 653.6 662.1 8.5 654.2 3.5 6.8 NO 654.3 5.5 10.8 NO 654.5 8.1 15.7 NO 654.6 9.1 17.7 NO CLEN11369 C ZCO12390 Cleanout 650.3 657.4 7.1 650.9 1.5 8.3 NO 651.1 2.3 13.0 NO 651.3 3.4 19.0 NO 651.3 3.8 21.4 NO CLEN11370 C ZCO10240 Cleanout 626.3 634.9 8.6 627.1 0.0 12.7 NO 627.4 0.0 20.0 NO 627.7 0.0 29.1 NO 627.9 0.0 32.8 NO CLEN11371 C ZCO10241 Cleanout 637.6 645.7 8.1 638.4 4.8 12.7 NO 638.6 7.5 20.0 NO 638.9 10.9 29.2 NO 639.0 12.2 32.9 NO CBIN11702 C CI0090 Curb Inlet 618.4 625.3 6.9 619.0 0.0 0.1 NO 619.5 0.0 0.1 NO 625.3 0.0 4.0 NO 625.3 0.0 5.4 NO CBIN11703 C CI0067 Curb Inlet 621.5 629.4 8.0 622.2 4.3 4.3 NO 622.4 6.8 6.8 NO 622.7 9.9 9.9 NO 622.9 11.2 11.2 NO CBIN11704 C CI0377 Curb Inlet 623.1 630.1 7.0 623.1 0.0 0.0 NO 623.1 0.0 0.0 NO 623.1 0.0 0.0 NO 623.1 0.0 0.0 NO CBIN11705 C CI1314 Curb Inlet 659.3 668.7 9.4 659.3 0.0 0.0 NO 659.3 0.0 0.0 NO 659.3 0.0 0.0 NO 659.3 0.0 0.0 NO CBIN11706 C CI0072 Curb Inlet 625.4 636.7 11.3 626.6 4.0 42.6 NO 627.0 6.3 74.2 NO 627.5 9.1 111.5 NO 627.9 10.2 126.8 NO CBIN11707 C CI1315 Curb Inlet 655.1 667.2 12.2 655.7 5.8 15.7 NO 655.9 9.3 25.2 NO 656.1 13.8 37.2 NO 656.2 15.6 42.1 NO CBIN11708 C CI0078 Curb Inlet 649.0 662.6 13.6 650.0 2.9 39.0 NO 650.3 4.5 68.5 NO 650.7 6.5 103.2 NO 650.8 7.3 117.5 NO CBIN11709 C CI0079 Curb Inlet 704.0 714.9 10.9 704.6 1.3 13.1 NO 705.0 2.0 27.2 NO 705.3 2.8 42.3 NO 705.4 3.2 48.9 NO CBIN11710 C CI0076 Curb Inlet 688.4 700.4 12.0 688.4 0.0 0.0 NO 688.4 0.0 0.0 NO 688.4 0.0 0.0 NO 688.4 0.0 0.0 NO CBIN11711 C CI0074 Curb Inlet 672.0 683.3 11.3 672.0 0.0 0.0 NO 672.0 0.0 0.0 NO 672.0 0.0 0.0 NO 672.0 0.0 0.0 NO CBIN11712 C CI0073 Curb Inlet 667.3 679.4 12.1 668.0 3.3 20.8 NO 668.3 5.1 39.4 NO 668.7 7.4 60.3 NO 668.8 8.3 69.1 NO CBIN11713 C CI0075 Curb Inlet 686.3 698.0 11.6 687.1 5.4 17.9 NO 687.4 8.3 34.8 NO 687.6 12.1 53.6 NO 687.8 13.6 61.4 NO OTLT10216 C OUT075 Outlet 587.2 591.7 4.5 587.7 0.0 76.8 NO 587.9 0.0 132.9 NO 588.1 0.0 193.0 NO 588.1 0.0 227.0 NO CBIN11714 C CI1341 Curb Inlet 645.2 663.3 18.1 646.2 7.7 19.1 NO 646.5 12.1 30.1 NO 646.8 17.6 42.8 NO 646.9 19.8 47.9 NO CBIN11715 C CI1311 Curb Inlet 643.1 650.4 7.3 643.1 0.0 0.0 NO 643.1 0.0 0.0 NO 643.1 0.0 0.0 NO 643.1 0.0 0.0 NO OTLT10217 C ZOUT10003 Outlet 570.1 579.1 9.0 570.3 0.0 12.8 NO 570.3 0.0 19.6 NO 570.4 0.0 27.9 NO 570.4 0.0 28.5 NO INLT10797 C ZINL12887 Inlet 591.6 599.8 8.2 592.2 0.0 12.8 NO 592.4 0.0 19.6 NO 592.5 0.0 27.9 NO 592.6 0.0 28.5 NO CLEN11372 C ZCO11940 Cleanout 613.3 621.3 8.0 613.8 0.0 12.8 NO 614.0 0.0 19.6 NO 614.1 0.0 27.9 NO 614.1 0.0 28.8 NO CBIN11716 C CI0138 Curb Inlet 624.7 629.7 4.9 625.2 2.0 2.0 NO 625.4 3.1 3.1 NO 625.7 4.5 4.5 NO 629.7 5.0 5.0 NO CLEN11373 C ZCO10245 Cleanout 642.0 650.1 8.1 643.2 0.0 19.2 NO 643.5 0.0 30.3 NO 643.9 0.0 43.0 NO 644.0 0.0 48.1 NO OTLT10218 C ZOUT10004 Outlet 637.4 645.5 8.1 637.4 6.7 25.5 NO 637.4 11.5 41.0 NO 637.4 17.0 58.9 NO 637.4 19.4 66.1 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 116 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11717 C CI1344 Curb Inlet 651.3 663.3 12.0 651.3 0.0 0.0 NO 651.3 0.0 0.0 NO 651.3 0.0 0.0 NO 651.3 0.0 0.0 NO OTHR11487 C ZOTHER10170Other 610.8 623.3 12.5 612.4 8.1 55.9 NO 613.1 12.9 92.8 NO 613.9 18.9 133.4 NO 623.3 21.3 150.4 NO OTHR11488 C ZOTHER10171Other 604.4 618.9 14.4 606.3 0.0 71.8 NO 607.1 0.0 125.2 NO 608.6 0.0 181.1 NO 609.2 0.0 201.0 NO INLT10798 C ZINL11999 Inlet 605.9 618.2 12.3 605.9 0.0 0.0 NO 605.9 0.0 0.0 NO 606.3 0.0 0.3 NO 608.8 0.0 0.7 NO CLEN11374 C ZCO12812 Cleanout 587.4 606.7 19.3 589.2 0.0 76.8 NO 589.9 0.0 132.9 NO 590.9 0.0 193.1 NO 591.4 0.0 216.3 NO OTLT10219 C ZINL12813 Outlet 585.8 589.8 4.0 586.1 0.0 7.5 NO 587.3 0.0 60.8 NO 587.4 0.0 74.0 NO 587.5 0.0 79.5 NO OTHR11489 C OTHER11722 Other 602.4 608.4 6.0 602.4 0.0 0.0 NO 602.4 0.0 0.0 NO 602.4 0.0 0.0 NO 602.4 0.0 0.0 NO OTLT10220 C ZINL11225 Outlet 610.3 614.3 4.0 610.3 0.0 12.4 NO 610.3 0.0 19.5 NO 610.3 0.0 28.4 NO 610.3 0.0 32.0 NO CBIN11718 C CI1609 Curb Inlet 610.9 623.0 12.1 611.7 0.0 12.4 NO 611.9 0.0 19.5 NO 612.2 0.0 28.4 NO 612.3 0.0 32.0 NO CBIN11719 C CI1610 Curb Inlet 612.6 622.8 10.1 613.4 12.4 12.4 NO 613.7 19.5 19.5 NO 613.9 28.5 28.5 NO 614.0 32.0 32.0 NO INLT10799 C ZINL12000 Inlet 616.7 623.2 6.4 616.7 0.0 0.0 NO 616.7 0.0 0.0 NO 616.7 0.0 0.0 NO 616.7 0.0 0.0 NO INLT10800 C INL13159 Inlet 413.5 417.5 4.0 419.2 39.3 150.9 YES 426.4 64.0 237.2 YES 432.8 95.6 281.2 YES 434.4 110.3 291.0 YES OTHR11490 C ZOTHER10203Other 410.0 441.6 31.6 441.6 27.1 184.7 NO 441.6 50.1 267.3 NO 441.6 80.5 320.3 NO 441.6 93.1 332.2 NO CBIN11720 C CI0011 Curb Inlet 450.2 456.6 6.4 450.2 0.0 0.0 NO 450.2 0.0 0.0 NO 450.2 0.0 0.0 NO 450.2 0.0 0.0 NO OTHR11491 C ZOTHER10204Other 407.2 432.4 25.1 410.5 2.5 65.4 NO 423.4 4.2 128.5 NO 419.7 6.2 188.3 NO 417.8 7.1 209.7 NO CBIN11721 C CI0010 Curb Inlet 450.8 457.6 6.7 450.8 0.0 0.0 NO 450.8 0.0 0.0 NO 450.8 0.0 0.0 NO 450.8 0.0 0.0 NO CBIN11722 C CI1551 Curb Inlet 508.3 513.0 4.7 508.6 2.0 2.0 NO 508.6 3.2 3.2 NO 508.7 4.7 4.7 NO 508.7 5.4 5.4 NO INLT10801 C ZINL12501 Inlet 582.3 590.2 7.9 582.3 0.0 0.0 NO 582.3 0.0 0.0 NO 582.3 0.0 0.0 NO 582.3 0.0 0.0 NO CLEN11375 C ZCO10446 Cleanout 487.3 495.4 8.1 488.1 5.9 32.4 NO 488.4 9.9 58.9 NO 489.4 14.8 93.3 NO 489.8 16.8 105.0 NO CLEN11376 C ZCO10447 Cleanout 467.4 475.0 7.6 468.9 0.0 32.4 NO 469.7 0.0 58.8 NO 475.0 0.0 95.6 NO 475.1 0.0 99.7 NO CLEN11377 C ZCO11700 Cleanout 504.4 523.1 18.7 505.6 1.5 24.0 NO 506.1 2.7 44.3 NO 523.1 4.1 67.8 NO 523.1 4.7 77.8 NO CLEN11378 C ZCO11701 Cleanout 502.6 516.5 13.9 503.4 3.0 27.0 NO 503.8 5.6 49.7 NO 504.4 8.6 76.3 NO 516.5 9.9 87.5 NO CLEN11379 C ZCO11702 Cleanout 491.6 502.7 11.1 492.9 0.0 26.9 NO 493.6 0.0 49.6 NO 502.8 0.0 80.7 NO 502.8 0.0 91.3 NO INLT10802 C INL114 Inlet 525.9 529.9 4.0 526.3 3.4 22.6 NO 526.5 5.7 41.6 NO 526.7 8.5 63.9 NO 526.8 9.6 72.2 NO CBIN11723 C CI1636 Curb Inlet 479.6 485.6 6.0 479.6 0.0 0.0 NO 479.6 0.0 0.0 NO 485.7 0.0 10.1 NO 485.7 0.0 8.6 NO CLEN11380 C ZCO11715 Cleanout 463.6 470.0 6.4 465.4 0.0 58.9 NO 466.1 0.0 92.5 NO 473.3 0.0 120.3 YES 475.2 0.0 129.2 YES CLEN11381 C ZCO11716 Cleanout 464.5 470.3 5.8 465.7 3.9 27.1 NO 466.3 6.2 42.7 NO 473.4 9.1 57.2 YES 475.3 10.3 56.2 YES CBIN11724 C CI1597 Curb Inlet 464.1 470.4 6.3 465.4 1.8 13.7 NO 466.1 2.8 22.9 NO 473.4 4.0 26.5 YES 475.3 4.5 28.2 YES CBIN11725 C CI1644 Curb Inlet 466.6 473.1 6.6 467.7 2.3 23.3 NO 468.1 3.6 36.6 NO 473.9 5.2 54.2 NO 475.8 5.8 61.4 YES CLEN11382 C ZCO10480 Cleanout 465.4 471.6 6.2 466.6 0.0 23.4 NO 467.0 0.0 36.7 NO 473.7 0.0 54.7 YES 475.6 0.0 53.6 YES INLT10803 C ZINL10481 Inlet 469.5 474.9 5.4 469.5 0.0 0.0 NO 469.5 0.0 0.0 NO 474.9 0.0 6.7 NO 475.6 0.0 6.5 NO CBIN11726 C CI1650 Curb Inlet 467.3 471.5 4.1 467.3 0.0 0.0 NO 467.3 0.0 0.0 NO 473.7 0.0 7.7 YES 475.6 0.0 7.9 YES INLT10804 C ZINL12536 Inlet 474.3 480.3 6.0 474.3 0.0 0.0 NO 474.3 0.0 0.0 NO 474.7 0.0 2.3 NO 480.4 0.0 5.6 NO CLEN11383 C ZCO12537 Cleanout 472.3 476.7 4.4 472.3 0.0 0.0 NO 472.3 0.0 0.0 NO 476.7 0.0 4.6 NO 476.8 0.0 6.5 NO CLEN11384 C ZCO12538 Cleanout 469.9 476.7 6.8 470.8 0.0 21.2 NO 471.0 0.0 33.2 NO 476.7 0.0 52.3 NO 476.8 0.0 59.8 NO CLEN11385 C ZCO11717 Cleanout 472.8 479.4 6.6 473.6 1.0 21.2 NO 473.8 1.5 33.2 NO 474.9 2.1 48.1 NO 479.4 2.4 54.3 NO INLT10805 C ZINL11718 Inlet 481.3 491.9 10.6 481.3 0.0 0.0 NO 481.3 0.0 0.0 NO 481.3 0.0 0.0 NO 481.3 0.0 0.0 NO CBIN11727 C CI1645 Curb Inlet 482.1 488.6 6.6 482.4 2.1 3.9 NO 482.5 3.2 6.1 NO 482.6 4.6 8.8 NO 482.7 5.1 9.9 NO CLEN11386 C ZCO10482 Cleanout 477.6 485.6 7.9 478.5 7.9 20.2 NO 478.8 12.5 31.7 NO 479.0 18.2 46.1 NO 479.3 20.5 51.8 NO CLEN11387 C ZCO10483 Cleanout 489.2 495.1 6.0 489.2 0.0 0.0 NO 489.2 0.0 0.0 NO 489.2 0.0 0.0 NO 489.2 0.0 0.0 NO CLEN11388 C ZCO10484 Cleanout 487.3 494.8 7.5 487.6 0.0 1.9 NO 487.7 0.0 3.0 NO 487.8 0.0 4.4 NO 487.8 0.0 4.9 NO INLT10806 C ZINL11541 Inlet 495.3 503.7 8.5 495.3 0.0 0.0 NO 495.3 0.0 0.0 NO 495.3 0.0 0.0 NO 495.3 0.0 0.0 NO CBIN11728 C CI1643 Curb Inlet 479.3 486.6 7.3 479.8 0.0 6.9 NO 480.0 0.0 10.8 NO 480.2 0.0 15.6 NO 480.2 0.0 17.5 NO CBIN11729 C CI1642 Curb Inlet 480.9 485.5 4.7 480.9 0.0 0.0 NO 480.9 0.0 0.0 NO 480.9 0.0 0.0 NO 480.9 0.0 0.0 NO CLEN11389 C ZCO11244 Cleanout 487.1 494.1 6.9 487.6 0.0 6.9 NO 487.7 0.0 10.8 NO 487.8 0.0 15.7 NO 487.9 0.0 17.6 NO INLT10807 C ZINL12032 Inlet 491.5 499.0 7.5 491.5 0.0 0.0 NO 491.5 0.0 0.0 NO 491.5 0.0 0.0 NO 491.5 0.0 0.0 NO CLEN11390 C ZCO12539 Cleanout 488.4 494.7 6.3 488.7 1.7 1.7 NO 488.8 2.6 2.6 NO 488.9 3.7 3.7 NO 488.9 4.2 4.2 NO CLEN11391 C ZCO12540 Cleanout 500.0 507.6 7.6 500.4 1.5 5.3 NO 500.5 2.3 8.3 NO 500.6 3.3 12.0 NO 500.7 3.7 13.5 NO CBIN11730 C CI1641 Curb Inlet 502.2 509.2 7.0 502.6 0.0 3.9 NO 502.6 0.0 6.1 NO 502.7 0.0 8.9 NO 502.8 0.0 10.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 117 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
INLT10808 C ZINL11473 Inlet 523.8 530.5 6.7 523.8 0.0 0.0 NO 523.8 0.0 0.0 NO 523.8 0.0 0.0 NO 523.8 0.0 0.0 NO CLEN11392 C ZCO11474 Cleanout 508.3 514.2 5.9 508.7 3.9 3.9 NO 508.8 6.1 6.1 NO 508.9 8.9 8.9 NO 508.9 10.0 10.0 NO INLT10809 C ZINL12033 Inlet 523.8 531.9 8.1 523.8 0.0 0.0 NO 523.8 0.0 0.0 NO 523.8 0.0 0.0 NO 523.8 0.0 0.0 NO CLEN11393 C ZCO12541 Cleanout 518.8 531.2 12.4 519.3 3.5 16.3 NO 519.5 5.5 24.2 NO 519.6 7.9 33.4 NO 519.6 8.9 36.9 NO INLT10810 C ZINL12542 Inlet 536.3 541.6 5.3 536.3 0.0 0.0 NO 536.3 0.0 0.0 NO 536.3 0.0 0.0 NO 536.3 0.0 0.0 NO CLEN11394 C ZCO12901 Cleanout 521.1 540.8 19.8 521.9 0.0 13.8 NO 522.1 0.0 20.7 NO 522.3 0.0 28.1 NO 522.4 0.0 30.9 NO INLT10811 C ZINL11126 Inlet 537.3 541.3 4.0 537.3 0.0 0.0 NO 537.3 0.0 0.0 NO 537.3 0.0 0.0 NO 537.3 0.0 0.0 NO CLEN11395 C ZCO12543 Cleanout 527.1 544.6 17.5 528.0 0.0 13.8 NO 528.2 0.0 20.8 NO 528.4 0.0 28.1 NO 528.5 0.0 30.9 NO CLEN11396 C ZCO12544 Cleanout 483.1 495.7 12.7 484.3 0.9 16.9 NO 484.6 1.4 25.2 NO 485.0 2.0 34.9 NO 485.2 2.3 38.6 NO CLEN11397 C ZCO12545 Cleanout 495.3 502.0 6.7 495.6 0.0 1.9 NO 495.7 0.0 3.0 NO 495.8 0.0 4.4 NO 495.8 0.0 4.9 NO CBIN11731 C CI1646 Curb Inlet 497.2 502.8 5.6 497.4 1.9 1.9 NO 497.5 3.0 3.0 NO 497.5 4.4 4.4 NO 497.6 4.9 4.9 NO CBIN11732 C CI1647 Curb Inlet 515.1 520.8 5.7 516.0 0.0 8.7 NO 516.3 0.0 13.9 NO 516.7 0.0 20.3 NO 516.9 0.0 22.9 NO CLEN11398 C ZCO10485 Cleanout 513.6 520.1 6.5 514.6 6.2 18.0 NO 515.0 9.8 28.6 NO 515.4 14.3 42.0 NO 515.6 16.1 47.5 NO INLT10812 C ZINL10486 Inlet 523.3 529.2 5.9 523.5 1.5 1.5 NO 523.6 2.3 2.3 NO 523.7 3.3 3.3 NO 523.7 3.7 3.7 NO INLT10813 C ZINL11719 Inlet 517.2 522.9 5.6 518.2 7.3 7.3 NO 518.6 11.7 11.7 NO 519.4 17.3 17.3 NO 519.7 19.6 19.6 NO CLEN11399 C ZCO12546 Cleanout 516.7 524.5 7.8 517.5 0.0 8.8 NO 517.8 0.0 14.0 NO 518.1 0.0 20.6 NO 518.2 0.0 23.2 NO CLEN11400 C ZCO12547 Cleanout 515.9 521.1 5.2 516.4 0.0 3.5 NO 516.6 0.0 5.5 NO 516.7 0.0 8.1 NO 516.8 0.0 9.1 NO CLEN11401 C ZCO12548 Cleanout 516.7 522.4 5.7 517.3 0.0 3.5 NO 517.5 0.0 5.5 NO 517.7 0.0 8.1 NO 517.7 0.0 9.2 NO INLT10814 C ZINL11245 Inlet 517.1 521.2 4.2 517.7 3.5 3.5 NO 517.8 5.5 5.5 NO 518.0 8.1 8.1 NO 518.1 9.2 9.2 NO CLEN11402 C ZCO12549 Cleanout 512.3 519.1 6.8 513.2 0.0 18.0 NO 513.4 0.0 28.6 NO 513.8 0.0 42.1 NO 513.9 0.0 47.4 NO INLT10815 C ZINL12550 Inlet 514.8 518.8 4.0 514.8 0.0 0.0 NO 514.8 0.0 0.0 NO 514.8 0.0 0.0 NO 514.8 0.0 0.0 NO CLEN11403 C ZCO12551 Cleanout 510.4 516.6 6.2 510.9 0.0 2.4 NO 511.1 0.0 3.7 NO 511.3 0.0 5.4 NO 511.4 0.0 6.1 NO INLT10816 C ZINL11246 Inlet 510.9 516.8 5.9 511.5 2.4 2.4 NO 511.6 3.7 3.7 NO 511.8 5.4 5.4 NO 511.9 6.1 6.1 NO CLEN11404 C ZCO10487 Cleanout 509.4 516.3 6.9 510.3 0.0 20.4 NO 510.6 0.0 32.3 NO 511.0 0.0 47.4 NO 511.1 0.0 53.4 NO CBIN11733 C CI1649 Curb Inlet 508.9 515.4 6.4 509.4 0.0 22.5 NO 509.5 0.0 35.6 NO 509.6 0.0 52.1 NO 509.6 0.0 58.8 NO INLT10817 C ZINL11475 Inlet 510.6 515.8 5.2 511.0 2.2 2.2 NO 511.0 3.5 3.5 NO 511.1 5.1 5.1 NO 511.1 5.7 5.7 NO CLEN11405 C ZCO11476 Cleanout 499.0 512.5 13.5 499.0 0.0 0.0 NO 499.0 0.0 0.0 NO 499.0 0.0 0.0 NO 499.0 0.0 0.0 NO CLEN11406 C ZCO10489 Cleanout 500.4 513.9 13.5 500.4 0.0 0.0 NO 500.4 0.0 0.0 NO 500.4 0.0 0.0 NO 500.4 0.0 0.0 NO CBIN11734 C CI1648 Curb Inlet 513.7 520.1 6.3 514.6 0.0 0.0 NO 515.0 0.0 0.0 NO 515.4 0.0 0.0 NO 515.6 0.0 0.0 NO CLEN11407 C ZCO12552 Cleanout 481.3 486.6 5.3 481.5 1.8 1.8 NO 481.6 2.8 2.8 NO 481.7 4.1 4.1 NO 481.7 4.6 4.6 NO INLT10818 C ZINL12553 Inlet 486.3 492.3 6.0 486.3 0.0 0.0 NO 486.3 0.0 0.0 NO 486.3 0.0 0.0 NO 486.3 0.0 0.0 NO CBIN11735 C CI1640 Curb Inlet 504.0 508.7 4.7 504.0 0.0 0.0 NO 504.0 0.0 0.0 NO 504.0 0.0 0.0 NO 504.0 0.0 0.0 NO INLT10819 C ZINL11247 Inlet 508.3 512.3 4.0 508.3 0.0 0.0 NO 508.3 0.0 0.0 NO 508.3 0.0 0.0 NO 508.3 0.0 0.0 NO CBIN11736 C CI0320 Curb Inlet 699.0 710.6 11.6 699.0 0.0 0.0 NO 699.0 0.0 0.0 NO 699.0 0.0 0.0 NO 699.0 0.0 0.0 NO CBIN11737 C CI0322 Curb Inlet 697.6 709.2 11.5 698.0 3.2 3.2 NO 698.0 5.1 5.1 NO 698.1 7.4 7.4 NO 698.2 8.3 8.3 NO CBIN11738 C CI0741 Curb Inlet 661.0 671.4 10.4 661.6 0.0 4.1 NO 661.8 0.0 6.5 NO 661.9 0.0 9.5 NO 661.9 0.0 10.6 NO CBIN11739 C CI0742 Curb Inlet 661.7 671.1 9.3 661.7 0.0 0.0 NO 661.8 0.0 0.0 NO 661.9 0.0 0.0 NO 662.0 0.0 0.0 NO CBIN11740 C CI0744 Curb Inlet 654.8 666.0 11.2 655.2 0.0 4.0 NO 655.3 0.0 6.3 NO 655.6 0.0 9.5 NO 656.4 0.0 10.5 NO CBIN11741 C CI0743 Curb Inlet 651.8 665.9 14.1 652.8 11.8 25.9 NO 653.2 19.2 43.9 NO 665.9 28.3 61.4 NO 665.9 32.0 64.5 NO CLEN11408 C ZCO11720 Cleanout 646.2 667.7 21.5 646.9 0.0 25.9 NO 647.1 0.0 42.3 NO 647.4 0.0 60.8 NO 647.4 0.0 64.5 NO INLT10820 C ZINL11721 Inlet 630.3 639.1 8.8 630.7 0.0 25.9 NO 630.8 0.0 42.3 NO 630.9 0.0 60.8 NO 630.9 0.0 64.5 NO CLEN11409 C ZCO11722 Cleanout 594.0 604.8 10.8 595.3 0.0 25.9 NO 595.8 0.0 42.3 NO 604.8 0.0 60.8 NO 604.8 0.0 64.5 NO CLEN11410 C ZCO12036 Cleanout 653.6 666.9 13.3 654.8 3.9 11.1 NO 666.9 6.5 20.2 NO 666.9 9.6 27.5 NO 667.0 10.9 27.5 NO CLEN11411 C ZCO10491 Cleanout 657.7 669.4 11.8 658.4 1.2 7.4 NO 669.4 1.9 12.3 NO 669.6 2.9 18.7 NO 671.4 3.3 21.0 YES CLEN11412 C ZCO10492 Cleanout 683.5 696.6 13.1 683.8 0.0 6.3 NO 683.9 0.0 10.4 NO 684.0 0.0 16.5 NO 684.1 0.0 17.8 NO INLT10821 C ZINL10493 Inlet 685.4 694.7 9.4 686.2 6.4 6.4 NO 686.5 10.6 10.6 NO 694.7 15.7 16.6 NO 694.7 17.8 17.8 NO CBIN11742 C CI0321 Curb Inlet 686.2 693.7 7.5 686.2 0.0 0.0 NO 686.5 0.0 0.1 NO 693.7 0.0 1.6 NO 693.7 0.0 1.7 NO CBIN11743 C CI0745 Curb Inlet 596.6 602.1 5.5 597.6 11.0 11.0 NO 602.1 20.0 20.0 NO 603.6 30.3 30.3 YES 605.5 34.6 34.6 YES CLEN11413 C ZCO10494 Cleanout 594.3 603.8 9.4 594.9 0.0 11.0 NO 595.1 0.0 21.3 NO 595.2 0.0 28.0 NO 595.3 0.0 31.4 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 118 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
OTLT10221 C ZINL10496 Outlet 469.8 473.8 4.0 469.8 1.4 371.0 NO 469.8 2.1 623.3 NO 469.8 3.1 923.5 NO 469.8 3.5 1024.0 NO OTHR11492 C ZOTHER10255Other 487.8 524.7 36.9 493.4 2.0 437.4 NO 495.2 3.2 617.8 NO 500.0 4.7 915.4 NO 524.8 5.3 1179.5 NO OTHR11493 C ZOTHER10256Other 484.2 513.2 29.0 487.8 0.0 371.0 NO 488.9 0.0 623.3 NO 489.9 0.0 923.2 NO 490.2 0.0 1074.4 NO OTLT10222 C ZOUT10309 Outlet 585.5 603.3 17.8 587.0 0.0 266.0 NO 587.6 0.0 458.7 NO 588.1 0.0 690.9 NO 588.2 0.0 832.1 NO INLT10822 C ZINL13139 Inlet 586.3 592.5 6.2 589.0 265.1 267.3 NO 589.7 457.2 460.7 NO 590.3 688.6 693.6 NO 590.7 795.6 801.1 NO INLT10823 C ZINL12562 Inlet 535.3 547.0 11.7 535.5 1.1 1.1 NO 535.6 2.3 2.3 NO 535.7 3.6 3.6 NO 535.7 4.2 4.2 NO CLEN11414 C ZCO12563 Cleanout 517.9 529.2 11.3 518.2 0.0 1.1 NO 518.3 0.0 2.3 NO 518.5 0.0 3.6 NO 518.7 0.0 4.1 NO CBIN11744 C ZCI10271 Curb Inlet 519.6 529.6 10.1 519.6 0.0 0.0 NO 519.6 0.0 0.0 NO 519.6 0.0 0.0 NO 519.6 0.0 0.0 NO CBIN11745 C ZCI10272 Curb Inlet 519.1 529.4 10.3 519.1 0.0 0.0 NO 519.1 0.0 0.0 NO 519.1 0.0 0.0 NO 519.1 0.0 0.0 NO CLEN11415 C ZCO12564 Cleanout 517.1 530.1 13.0 517.8 0.0 11.3 NO 518.0 0.0 18.4 NO 518.5 0.0 26.7 NO 518.6 0.0 30.5 NO CBIN11746 C ZCI10273 Curb Inlet 518.9 531.5 12.7 519.2 0.0 0.0 NO 519.6 0.0 0.1 NO 521.1 0.0 0.7 NO 521.9 0.0 0.8 NO CLEN11416 C ZCO13018 Cleanout 518.4 531.3 12.9 519.2 10.4 10.4 NO 519.6 16.5 16.5 NO 521.1 24.1 24.2 NO 521.9 27.2 27.2 NO CBIN11747 C ZCI10274 Curb Inlet 518.8 531.6 12.9 519.2 0.0 0.0 NO 519.6 0.0 0.0 NO 521.1 0.0 0.6 NO 521.8 0.0 0.6 NO SEPR10030 C ZSEP10014 Separator 514.7 529.1 14.4 515.8 0.0 36.5 NO 516.1 0.0 59.3 NO 516.5 0.0 89.7 NO 516.6 0.0 99.5 NO OTLT10223 C ZINL11542 Outlet 512.3 516.3 4.0 512.3 0.0 36.5 NO 512.3 0.0 59.4 NO 512.3 0.0 90.2 NO 512.3 0.0 99.6 NO CLEN11417 C ZCO11543 Cleanout 529.1 539.7 10.6 529.8 0.0 11.8 NO 530.0 0.0 18.6 NO 530.2 0.0 27.0 NO 530.3 0.0 31.5 NO CLEN11418 C ZCO12044 Cleanout 562.6 578.0 15.5 563.0 0.0 11.8 NO 563.1 0.0 18.6 NO 563.2 0.0 27.0 NO 563.2 0.0 31.9 NO CLEN11419 C ZCO12045 Cleanout 563.7 575.6 11.9 564.7 1.4 11.8 NO 565.0 2.3 18.6 NO 565.5 3.4 27.1 NO 565.7 3.8 31.1 NO CBIN11748 C CI1369 Curb Inlet 565.9 575.6 9.7 565.9 0.0 0.0 NO 565.9 0.0 0.0 NO 565.9 0.0 0.0 NO 565.9 0.0 0.0 NO CLEN11420 C ZCO12565 Cleanout 564.4 576.2 11.9 565.2 7.1 10.5 NO 565.5 11.3 16.6 NO 565.9 16.5 24.3 NO 566.1 18.6 27.4 NO CBIN11749 C CI1370 Curb Inlet 565.3 575.9 10.6 565.3 0.0 0.0 NO 565.5 0.0 0.1 NO 565.9 0.0 0.1 NO 566.1 0.0 0.2 NO CBIN11750 C ZCI10681 Curb Inlet 572.4 580.3 7.9 572.9 3.5 3.5 NO 573.0 5.5 5.5 NO 573.2 8.1 8.1 NO 573.2 9.1 9.1 NO CBIN11751 C ZCI10275 Curb Inlet 573.1 579.9 6.8 573.1 0.0 0.0 NO 573.1 0.0 0.0 NO 573.2 0.0 0.0 NO 573.2 0.0 0.0 NO CLEN11421 C ZCO12567 Cleanout 538.5 568.0 29.5 539.0 0.0 12.7 NO 539.1 0.0 18.8 NO 539.2 0.0 25.1 NO 539.2 0.0 27.3 NO OTLT10224 C ZCO12568 Outlet 530.3 551.9 21.7 531.1 1.2 13.8 NO 530.6 2.3 20.8 NO 531.1 3.7 28.1 NO 530.9 4.3 30.9 NO CLEN11422 C ZCO11727 Cleanout 565.8 577.6 11.7 566.2 0.0 12.7 NO 566.3 0.0 18.8 NO 566.4 0.0 25.1 NO 566.4 0.0 27.3 NO INLT10824 C ZINL11728 Inlet 531.1 551.5 20.4 531.1 0.0 0.0 NO 531.1 0.0 0.0 NO 531.1 0.0 0.0 NO 531.1 0.0 0.0 NO OTLT10225 C ZINL12569 Outlet 573.3 577.3 4.0 573.4 0.0 15.1 NO 573.4 0.0 33.8 NO 573.8 0.0 42.1 NO 575.0 0.0 42.5 NO SEPR10031 C SEP009 Separator 573.4 584.0 10.6 574.8 0.8 15.1 NO 575.3 1.5 23.8 NO 575.5 2.3 36.3 NO 579.5 2.6 40.5 NO CLEN11423 C ZCO10512 Cleanout 576.0 586.2 10.2 576.8 1.3 14.3 NO 577.1 2.0 22.4 NO 577.4 2.9 34.0 NO 577.6 3.3 37.8 NO CBIN11752 C CI1368 Curb Inlet 577.1 586.6 9.6 577.1 0.0 0.0 NO 577.1 0.0 0.0 NO 577.4 0.0 0.0 NO 577.6 0.0 0.1 NO CBIN11753 C CI1367 Curb Inlet 577.3 586.6 9.3 577.3 0.0 0.0 NO 577.3 0.0 0.0 NO 577.4 0.0 0.1 NO 577.6 0.0 0.1 NO CLEN11424 C ZCO11051 Cleanout 590.9 606.9 16.0 591.6 0.0 13.2 NO 591.8 0.0 20.5 NO 592.0 0.0 31.4 NO 592.1 0.0 35.0 NO CLEN11425 C ZCO11052 Cleanout 596.4 608.7 12.3 597.0 3.3 13.2 NO 597.2 5.2 20.7 NO 597.5 7.6 31.5 NO 597.5 8.6 37.3 NO CBIN11754 C CI0686 Curb Inlet 597.0 609.2 12.3 597.0 0.0 0.0 NO 597.2 0.0 0.0 NO 597.5 0.0 0.2 NO 597.6 0.0 0.2 NO CBIN11755 C CI0688 Curb Inlet 597.4 608.9 11.5 597.4 0.0 0.0 NO 597.4 0.0 0.0 NO 597.5 0.0 0.0 NO 597.6 0.0 0.1 NO CLEN11426 C ZCO12570 Cleanout 598.3 610.4 12.1 599.4 5.7 10.1 NO 610.4 8.9 15.7 NO 610.4 12.9 23.9 NO 610.5 14.6 28.6 NO CBIN11756 C CI0609 Curb Inlet 600.3 612.5 12.2 600.9 0.0 4.5 NO 601.3 0.0 7.4 NO 612.5 0.0 10.9 NO 612.5 0.0 15.6 NO CBIN11757 C CI0610 Curb Inlet 600.9 612.5 11.6 600.9 0.0 0.0 NO 601.3 0.0 0.3 NO 612.5 0.0 1.5 NO 612.5 0.0 2.6 NO CBIN11758 C CI0608 Curb Inlet 601.1 613.5 12.4 601.8 4.5 4.5 NO 602.1 7.4 7.4 NO 613.5 10.9 10.9 NO 613.5 12.4 12.4 NO OTLT10226 C ZINL10982 Outlet 584.3 588.3 4.0 584.3 0.0 41.5 NO 584.3 0.0 69.0 NO 584.3 0.0 103.8 NO 584.3 0.0 113.0 NO CLEN11427 C ZCO12571 Cleanout 589.4 596.8 7.4 590.2 4.2 41.5 NO 590.5 7.3 69.0 NO 590.7 10.9 103.2 NO 590.8 12.4 113.7 NO CBIN11759 C CI10276 Curb Inlet 592.1 596.9 4.8 592.1 0.0 0.0 NO 592.1 0.0 0.0 NO 592.1 0.0 0.0 NO 592.1 0.0 0.0 NO CBIN11760 C CI10277 Curb Inlet 592.3 596.3 4.0 592.6 1.8 1.8 NO 592.7 2.9 2.9 NO 593.1 4.2 4.2 NO 593.4 4.8 4.8 NO CLEN11428 C ZCO13019 Cleanout 590.2 595.6 5.5 591.7 0.0 37.9 NO 592.3 0.0 62.8 NO 593.0 0.0 96.9 NO 593.3 0.0 102.4 NO CBIN11761 C CI10278 Curb Inlet 592.1 596.4 4.4 592.1 0.0 0.0 NO 592.3 0.0 0.0 NO 593.0 0.0 0.2 NO 593.3 0.0 0.2 NO CLEN11429 C ZCO13020 Cleanout 591.4 604.3 12.9 593.3 7.0 36.6 NO 594.0 12.5 60.2 NO 604.3 19.2 92.9 NO 604.3 21.9 97.9 NO CLEN11430 C ZCO13021 Cleanout 592.0 603.7 11.7 593.6 0.0 30.1 NO 594.3 0.0 48.4 NO 603.7 0.0 74.4 NO 603.5 0.0 76.1 NO CLEN11431 C ZCO12046 Cleanout 602.0 613.8 11.8 602.0 0.0 0.0 NO 602.0 0.0 0.0 NO 602.1 0.0 0.2 NO 602.0 0.0 0.0 NO

APPENDIX E
EXISTING JUNCTIONS: SUMMARY TABLE
City of San Marcos Drainage Master Plan 119 of 132 April 2019 Facility ID Sub
Watershed
Original
Facility ID Type
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Max.

HGL
(2-year)
(feet)
Max.

Lateral
Inflow
(2-year)
(cfs)
Max.

Total
Inflow
(2-year)
(cfs)
Surcharging
(2-year)
Max. HGL
(10-year)
(feet)
Max.

Lateral
Inflow
(10-year)
(cfs)
Max.

Total
Inflow
(10-year)
(cfs)
Surcharging
(10-year)
Max. HGL
(50-year)
(feet)
Max.

Lateral
Inflow
(50-year)
(cfs)
Max. Total
Inflow
(50-year)
(cfs)
Surcharging
(50-year)
Max. HGL
(100-year)
(feet)
Max.

Lateral
Inflow
(100-year)
(cfs)
Max. Total
Inflow
(100-year)
(cfs)
Surcharging
(100-year)
Existing Condition Junctions Summary table
Dimensions 2-year 10-year 50-year 100-year
CBIN11762 C CI0918 Curb Inlet 609.7 620.4 10.7 609.7 0.0 0.0 NO 609.7 0.0 0.0 NO 609.7 0.0 0.0 NO 609.7 0.0 0.0 NO CBIN11763 C CI0917 Curb Inlet 612.6 624.0 11.4 612.6 0.0 0.0 NO 612.6 0.0 0.0 NO 612.6 0.0 0.0 NO 612.6 0.0 0.0 NO INLT10825 C ZINL12572 Inlet 595.8 604.1 8.3 595.8 0.0 0.0 NO 595.8 0.0 0.0 NO 604.1 0.0 4.6 NO 604.1 0.0 4.4 NO CLEN11432 C ZCO12573 Cleanout 592.5 602.1 9.6 594.0 1.9 30.1 NO 594.7 2.9 48.5 NO 602.1 4.2 74.8 NO 602.1 4.7 74.6 NO CBIN11764 C CI10279 Curb Inlet 594.8 601.6 6.8 594.8 0.0 0.0 NO 594.8 0.0 0.0 NO 601.6 0.0 9.3 NO 601.6 0.0 4.8 NO CLEN11433 C ZCO11053 Cleanout 593.4 602.4 8.9 594.9 2.2 28.2 NO 595.5 3.8 46.0 NO 602.4 5.8 74.2 NO 602.4 6.6 73.5 NO INLT10826 C ZINL12574 Inlet 544.3 555.6 11.3 544.3 0.0 0.0 NO 544.3 0.0 0.0 NO 544.3 0.0 0.0 NO 544.3 0.0 0.0 NO INLT10827 C ZINL10513 Inlet 533.3 552.8 19.5 533.8 7.0 7.0 NO 534.1 13.1 13.1 NO 534.2 20.2 20.2 NO 534.3 23.2 23.2 NO INLT10828 C ZINL10514 Inlet 595.3 600.0 4.7 595.3 0.0 0.0 NO 595.3 0.0 0.0 NO 595.3 0.0 0.0 NO 595.3 0.0 0.0 NO OTLT10227 C ZOUT10023 Outlet 590.0 594.0 4.0 590.0 0.0 0.0 NO 590.0 0.0 0.0 NO 590.0 0.0 0.0 NO 590.0 0.0 0.0 NO INLT10829 C ZINL11729 Inlet 593.8 602.3 8.5 594.9 0.0 0.0 NO 595.5 0.0 0.0 NO 602.4 0.0 4.6 NO 602.4 0.0 4.8 NO CLEN11434 C ZCO11730 Cleanout 581.0 601.5 20.5 582.3 1.6 21.7 NO 582.6 2.5 32.2 NO 582.8 3.6 42.8 NO 582.9 4.1 47.4 NO CLEN11435 C ZCO11731 Cleanout 579.9 606.0 26.1 580.3 2.2 22.4 NO 580.4 3.4 33.6 NO 580.5 5.0 45.9 NO 580.6 5.6 51.0 NO CLEN11436 C ZCO11732 Cleanout 582.1 599.3 17.2 583.4 3.3 21.2 NO 583.8 5.1 31.5 NO 584.1 7.3 41.7 NO 584.2 8.2 46.4 NO CLEN11437 C ZCO11733 Cleanout 550.5 567.6 17.1 551.1 0.0 22.4 NO 551.2 0.0 33.6 NO 551.4 0.0 45.9 NO 551.4 0.0 51.0 NO CLEN11438 C ZCO12575 Cleanout 545.6 552.2 6.6 546.3 1.7 23.4 NO 546.4 2.8 35.4 NO 546.6 4.2 49.2 NO 546.6 4.7 54.9 NO CLEN11439 C ZCO12576 Cleanout 539.0 553.8 14.8 539.4 2.6 25.1 NO 539.5 4.1 38.8 NO 539.6 6.0 54.5 NO 539.7 6.7 61.0 NO CLEN11440 C ZCO12577 Cleanout 507.0 521.2 14.3 507.9 0.0 25.1 NO 508.2 0.0 38.8 NO 508.4 0.0 54.5 NO 508.5 0.0 61.0 NO CLEN11441 C ZCO11545 Cleanout 505.3 519.6 14.3 506.2 0.0 25.1 NO 506.5 0.0 38.8 NO 506.7 0.0 54.4 NO 506.8 0.0 61.0 NO CLEN11442 C ZCO11546 Cleanout 504.1 519.2 15.2 505.0 0.0 25.1 NO 505.3 0.0 38.8 NO 505.5 0.0 54.5 NO 505.7 0.0 61.1 NO CLEN11443 C ZCO12578 Cleanout 502.3 517.0 14.7 503.5 0.0 25.1 NO 503.8 0.0 38.9 NO 504.1 0.0 54.7 NO 504.3 0.0 61.3 NO CLEN11444 C ZCO12579 Cleanout 501.5 515.1 13.6 502.4 2.4 27.1 NO 502.7 3.8 42.1 NO 502.9 5.5 59.6 NO 503.0 6.1 66.9 NO CLEN11445 C ZCO12580 Cleanout 496.9 508.7 11.8 497.7 1.1 33.6 NO 497.9 1.6 52.6 NO 498.1 2.3 74.8 NO 498.7 2.6 84.2 NO CLEN11446 C ZCO11544 Cleanout 487.9 499.4 11.5 491.1 0.0 34.8 NO 492.0 0.0 54.5 NO 493.5 0.0 77.7 NO 499.5 0.0 93.0 NO CBIN11765 C CI0685 Curb Inlet 496.0 500.3 4.3 496.3 0.0 1.3 NO 496.3 0.0 2.1 NO 496.4 0.0 3.1 NO 497.1 0.0 5.7 NO CLEN11447 C ZCO11252 Cleanout 497.1 512.0 14.8 497.4 0.0 1.3 NO 497.5 0.0 2.1 NO 497.6 0.0 3.1 NO 497.6 0.0 3.5 NO CLEN11448 C ZCO11253 Cleanout 518.1 537.4 19.3 518.4 0.0 2.5 NO 518.4 0.0 3.9 NO 518.5 0.0 5.6 NO 518.5 0.0 6.3 NO CLEN11449 C ZCO12047 Cleanout 529.3 548.6 19.3 529.6 0.0 2.5 NO 529.7 0.0 3.9 NO 529.7 0.0 5.6 NO 529.7 0.0 6.3 NO INLT10830 C ZINL10515 Inlet 531.7 536.9 5.1 532.1 0.0 2.5 NO 532.2 0.0 3.9 NO 532.3 0.0 5.6 NO 532.4 0.0 6.3 NO OTHR11494 C ZOTHER10268Other 532.2 536.2 4.0 532.7 2.5 2.5 NO 532.8 3.9 3.9 NO 532.9 5.6 5.6 NO 533.0 6.3 6.3 NO INLT10831 C ZINL10516 Inlet 519.3 527.0 7.7 519.3 0.0 0.0 NO 519.3 0.0 0.0 NO 519.3 0.0 0.0 NO 519.3 0.0 0.0 NO INLT10832 C ZINL11254 Inlet 544.3 551.5 7.2 544.3 0.0 0.0 NO 544.3 0.0 0.0 NO 544.3 0.0 0.0 NO 544.3 0.0 0.0 NO INLT10833 C ZINL11255 Inlet 548.1 552.1 4.0 548.1 0.0 0.0 NO 548.1 0.0 0.0 NO 548.1 0.0 0.0 NO 548.1 0.0 0.0 NO INLT10834 C ZINL11256 Inlet 555.3 566.4 11.1 555.3 0.0 0.0 NO 555.3 0.0 0.0 NO 555.3 0.0 0.0 NO 555.3 0.0 0.0 NO INLT10835 C ZINL12790 Inlet 513.6 523.4 9.9 513.6 0.0 0.0 NO 513.6 0.0 0.0 NO 513.6 0.0 0.0 NO 513.6 0.0 0.0 NO INLT10836 C ZINL12791 Inlet 512.4 523.6 11.2 512.4 0.0 0.0 NO 512.4 0.0 0.0 NO 512.4 0.0 0.0 NO 512.4 0.0 0.0 NO INLT10837 C ZINL11128 Inlet 515.3 527.5 12.2 515.3 0.0 0.0 NO 515.3 0.0 0.0 NO 515.3 0.0 0.0 NO 515.3 0.0 0.0 NO CLEN11450 C ZCO12051 Cleanout 515.7 531.2 15.5 516.9 14.2 36.6 NO 517.3 23.4 59.5 NO 518.1 34.9 86.7 NO 518.3 39.5 99.3 NO INLT10838 C ZINL12052 Inlet 552.3 562.3 10.0 552.3 0.0 0.0 NO 552.3 0.0 0.0 NO 552.3 0.0 0.0 NO 552.3 0.0 0.0 NO INLT10839 C ZINL12593 Inlet 538.9 565.9 27.0 539.0 0.0 0.0 NO 539.1 0.0 0.0 NO 539.2 0.0 0.0 NO 539.2 0.0 0.0 NO SEPR10032 C ZSEP10015 Separator 586.3 597.2 10.9 587.4 0.0 41.5 NO 587.7 0.0 69.0 NO 587.9 0.0 103.1 NO 588.0 0.0 112.5 NO INLT10840 C ZINL12902 Inlet 552.0 567.8 15.8 552.0 0.0 0.0 NO 552.0 0.0 0.0 NO 552.0 0.0 0.0 NO 552.0 0.0 0.0 NO INLT10841 C ZINL12903 Inlet 549.3 556.3 7.0 549.3 0.0 0.0 NO 549.3 0.0 0.0 NO 549.3 0.0 0.0 NO 549.3 0.0 0.0 NO INLT10842 C ZINL11271 Inlet 511.8 516.8 5.1 512.1 1.9 1.9 NO 512.1 3.1 3.1 NO 516.9 4.6 7.7 NO 517.0 5.2 7.6 NO CLEN11451 C ZCO12829 Cleanout 501.8 516.4 14.6 503.1 0.0 47.4 NO 503.6 0.0 87.8 NO 516.4 0.0 175.8 NO 516.7 0.0 201.4 NO INLT10843 C INL078 Inlet 508.3 516.3 8.0 509.0 36.4 36.4 NO 509.2 66.3 66.3 NO 516.6 102.4 102.4 NO 517.5 119.9 119.9 YES CBIN11766 C CI10311 Curb Inlet 497.7 513.7 16.0 498.6 0.0 1.7 NO 513.7 0.0 3.7 NO 513.7 0.0 2.7 NO 513.7 0.0 2.5 NO INLT10844 C ZINL12066 Inlet 501.5 510.2 8.7 501.5 0.0 0.0 NO 501.5 0.0 0.0 NO 510.4 0.0 17.3 NO 511.0 0.0 10.0 NO INLT10845 C ZINL10547 Inlet 501.0 510.0 9.0 501.0 0.0 0.0 NO 501.0 0.0 0.0 NO 510.4 0.0 28.4 NO 511.1 0.0 23.6 YES