9-Apr-24
Honorable Mayor and City Council Council Date
City of Hawthorne
Hawthorne, CA 90250
RE: PROGRESS PAYMENT NO. 5 FOR SEWER MAIN AND MISCELLANEOUS STORM DRAIN IMPROVEMENT PROJECT 2023 The following is a detailed breakdown of Progress Payment No.5 due to GRBCON Inc., 5114 Elton St. Baldwin Park, CA 91706 for work done on the subject project through March, 2024.
Contract Unit Unit Contract Qty or % Qty or % Amount Total Qty Total Amount Description Quantity Price Amount Previous This estimate This Estimate or % to Date to Date Point Repairs of 8" Extra Strength VCP Sewer Main: 45 LF $1,069.00 48,105.00 36.00 0.00 36.00 38,484.00 Remove existing 8" or 10" VCP sewer main and install 12" Extra 2,900 EA $509.00 1,476, 100.00 1802.00 1,105.00 2,907.00 Strength VCP Sewer Main 562,445.00 1,479,663.00
Remove ex. manhole and reconstruction of sewer manhole (48"0 & up 13 LF $17,650.00 229,450.00 9.00 5.00 88,250.00 14.00 247,100.00 to 15' deep) per SPPWC Std. 200-4
Install Steel Casing per detail 1, sheet 7 LF $25,000.00 25,000.00 1.00 0.00 1.00 25,000.00 Install 15" storm drain RCP 20 $368.00 7,360.00 0.00 0.00 0.00 Install 18" storm drain RCP 360 $344.00 123,840.00 385.00 0.00 385.00 132,440.00 Construct storm drain manhole per SPPWC Std. 321-2 EA $12,800.00 25,600.00 2.00 0.00 2.00 25,600.00 Construct storm drain catch basin per SPPWC Std. 304-4 EA $11,299.00 22,598.00 2.00 0.00 2.00 22,598.00 Install 3-8" HDPE pipe storm drain w/ PCC encasement $488.00 21,960.00 45.00 0.00 45.00 21,960.00 Traffic Control per Part 6 in the specification: Includes Traffic control Plans, Traffic Control Measures, and Striping restorations and $151,312.00 151,312.00 0.85 0.05 7,565.60 0.90 136,180.80 LACDW encroachment permit and fees
"1 Traffic Signal Detectors Bicycle Loop (Type "D") EA $1,177.00 2,354.00 0.00 0.00 0.00 12 Traffic Signal Detectors Loop (Type "E") EA $1,177.00 2,354.00 0.00 0.00 0.00 13 8'x4' Project construction sign EA $1,885.00 3,770.00 2.00 0.00 2.00 3,770.00 14 Excavation (Potential unsuitable material for pipe subgrade only) 500 $83.00 41,500.00 0.00 0.00 - 0.00 Total Contract Price $ 2,181,303.00
TOTAL 658,260.60 2,132,795.80
LESS RETENTION 32,913.03 106,639.79
LESS PREVIOUSLY PAID $1.400,808.44
TOTAL AMOUNT DUE 625,347.57 625,347.57
TOTAL AMOUNT DUE THIS 5th PROGRESS PAYMENT:
Account#
180-1150-137-0-0-40514 $ 625,347.57
Heecheol Kwon, P.E.
Project Engineer
K:lEngineering WPDOCSIPROJECTSISPECS123-04 Sewer Imrpvoement\Payments\PP5\PPN5 (23-04) 5114 Elton St. Baldwin Park, CA. 91706 License No. 1012408 Invoice Number: Heecheol Kwon
23SW04-05 Attn:
Invoice 3/27/2024
GRBCON Project: Sewer Main Date:
and Misc. Storm Billing
INCORPORATED Period: 2/28/2024-3/27/2024
Drain Improvement
Project 2023 (#23-04)
Bill To:
Current
Unit of Est. Contract Previous Unit Quantit Previously
No. Item Description Measure Quantity Unit Price Amount Billed y Due Billled This Billing Total Constructed 1 Point Repairs of 8" ES VCP Sewer Main LF $1,069.00 $48,105.00 36.00 0.00 $38,484.00 $0.00 $38,484.00 2 Remove Exiling 8 or 10" VCP and Insall 12 VCP LF 2,900 $509.00 $1,476,100.00 1802.00 1105.00 $917,218.00 $562,445.00 $1,479,663.00 Remove Ex Manhole and Reconstuct 48" up to 15'
3 deep EA 13 $17,650.00 $229,450.00 9.00 5.00 $158,850.00 $88,250.00 $247,100.00 4 Install Steel Casing per Detail 1, Sheet 7 LS $25,000.00 $25,000.00 100.00% 0.00% $25,000.00 $0.00 $25,000.00 5 Install 15" Storm Drain RCP LF $368.00 $7,360.00 0.00 0.00 $0.00 $0.00 $0.00 6 Install 18" Storm Drain RCP LF 360 $344.00 $123,840.00 385.00 0.00 $132,440.00 $0.00 $132,440.00 7 Construct Storm Drain Manhole per SPPWC Std 321-2 EA $12,800.00 $25,600.00 2.00 0.00 $25,600.00 $0.00 $25,600.00 8 Construct Storm Drain catch basin per SPPWC Std 304-4 EA $11,299.00 $22,598.00 2.00 0.00 $22,598.00 $0.00 $22,598.00 9 Install (3)-8" HDPE Pipe SD w/PCC encasement $488.00 $21,960.00 45.00 0.00 $21,960.00 $0.00 $21,960.00 $151,312.00 $151,312.00 85.00% 5.00% $128,615.20 $7,565.60 $136,180.80 I Traffic Signal Detector Bicycle Loop (TYPE D) EA $1,177.00 $2,354.00 0.00 0.00 $0.00 $0.00 $0.00 12 Traffic Signal Detector Loop (TYPE E) EA $1,177.00 $2,354.00 0.00 0.00 $0.00 $0.00 $0.00 EA $1,885.00 $3,770.00 2.00 0.00 $3,770.00 $0.00 $3,770.00 15,8%c Pio Constein Sie materal for pipe
14 subgrade only) CY 500 $83.00 $41,500.00 0.00 0.00 $0.00 $0.00 $0.00 $2,181,303.00 $1,474,535.20 $658,260.60 $2,132,795.80
< 3127/24
Office: 626.699.2380 Fax: 626.699.2457
5114 Elton St. Baldwin Park, CA. 91706 License No. 1012408 Total Due $658,260.60
Payment Terms: Net-30.
Please Remit Payment to GRBCON, Inc. (5114 Elton St., Baldwin Retention Witheld (5%) $32,913.03 Park, CA. 91706) as soon as possible.
TOTAL DUE (Work Completed Less 5%
$625,347.57
Retention)
Office: 626.699.2380 Fax: 626.699.2457