Item No.
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: OFFICE OF THE CITY MANAGER
BY: MATTHEW BAUMGARDNER, DIRECTOR OF PUBLIC WORKS/CITY
ENGINEER
DATE: SEPTEMBER 9, 2025
SUBJECT: APPROVAL OF PLANS AND SPECIFICATIONS AND AUTHORIZATION
TO SOLICIT FOR CONSTRUCTION BIDS FOR THE FOSTER ROAD
AND CARFAX AVENUE STORM DRAIN IMPROVEMENTS CAPITAL
IMPROVEMENT PROJECT (CIP) NO. 24-23, AND FIND THE PROJECT
EXEMPT FROM THE CALIFORNIA ENVIRONMENTAL QUALITY ACT
(CEQA) PURSUANT TO SECTION 15302 CLASS 2(c)
EXECUTIVE SUMMARY
The City Council will consider approving plans and specifications, and authorizing the solicitation of construction bids for the Foster Road and Carfax Avenue Storm Drain Improvements, CIP No. 24-23. The proposed storm drain improvements, which would occur on Carfax Avenue at Foster Road and along Foster Road east to the Lower San Gabriel River, are necessary to ensure reliable stormwater drainage in these areas.
RECOMMENDATION
That the City Council:
Approve the plans and specifications, and authorize the solicitation of construction bids for the Foster Road and Carfax Avenue Storm Drain Improvements, CIP No. 24-23 and further find that the project is exempt from the requirements contained in CEQA under Section 15302 Class 2(c).
BACKGROUND
As part of the City’s storm drain maintenance program, the City’s storm drain at Foster Road and Carfax Avenue was analyzed via storm drain cleaning and video assessments to identify areas in need of repair to ensure continued drainage of stormwater runoff in the surrounding area. The existing corrugated metal pipe storm drains in the area were found to be deteriorated and beyond repair, requiring replacement with corrosion-resistant reinforced concrete pipe to ensure that the City is able to continue to use this infrastructure to provide storm drainage in the surrounding area. The project limits are shown on the project location map included as Attachment A.
APPROVAL OF PLANS AND SPECIFICATIONS AND AUTHORIZATION TO SOLICIT FOR CONSTRUCTION BIDS FOR THE FOSTER ROAD AND CARFAX AVENUE STORM DRAIN IMPROVEMENTS (CIP) NO. 24-23,
AND FINDING THE PROJECT EXEMPT FROM THE CALIFORNIA ENVIRONMENTAL QUALITY ACT (CEQA) PURSUANT TO SECTION 15302 CLASS 2(C)
SEPTEMBER 9, 2025
PAGE 2
ANALYSIS
The plans (Attachment B) and specifications are complete and the project is now ready for solicitation of construction bids. A copy of the project specifications is available for review in the Public Works Department.
The proposed storm drain improvements include: the removal and replacement of deteriorated metal storm drain pipe with 514 feet of new reinforced concrete storm drain piping along Carfax Avenue at the intersection with Foster Road and easterly on Foster Road to the Lower San Gabriel River; replacement of existing storm drain catch basin and junction structures; modification of existing storm drain catch basin; and installation of catch basin connector pipe screens to capture trash and debris.
Staff recommends that the City Council approve the project plans and specifications and authorize solicitation for bids. Construction is tentatively scheduled to begin in November 2025 and be completed in February 2026.
This project is categorically exempt from the provisions of CEQA under Section 15302 Class 2(c).
CITY COUNCIL PRIORITIES
Quality of Life, Safety and Infrastructure
FISCAL IMPACT
Approval of the recommended actions will result in an expenditure of approximately $675,000, from budgeted Storm Water Fund Capital Improvement Program (CIP) funds to cover the Total Estimated Project Cost (break down listed in table below). Depending on actual bids received, a detailed project cost summary will be provided at the time of award of the construction contract for this project.
Description Amount
Design $70,000
Construction Contract and Contingencies $565,000
Materials Testing and Contract Administration $40,000
Total Estimated Project Cost: $675,000
There is sufficient fund balance for the recommended actions. The budgeted CIP funds for this project are Storm Water Fund CIP Account No. 50-1-4018 as provided in the table below.
APPROVAL OF PLANS AND SPECIFICATIONS AND AUTHORIZATION TO SOLICIT FOR CONSTRUCTION BIDS FOR THE FOSTER ROAD AND CARFAX AVENUE STORM DRAIN IMPROVEMENTS (CIP) NO. 24-23,
AND FINDING THE PROJECT EXEMPT FROM THE CALIFORNIA ENVIRONMENTAL QUALITY ACT (CEQA) PURSUANT TO SECTION 15302 CLASS 2(C)
SEPTEMBER 9, 2025
PAGE 3
Account No. Funding Source Amount
50-1-4018
FY 2025-26 Foster Road and Carfax Avenue
Storm Drain Improvements CIP $675,000
Total Project Funding: $675,000
ATTACHMENTS
Attachment A – Project Location Map
Attachment B – Plans
APPROVAL OF PLANS AND SPECIFICATIONS AND AUTHORIZATION TO SOLICIT FOR CONSTRUCTION BIDS FOR THE FOSTER ROAD AND CARFAX AVENUE STORM DRAIN IMPROVEMENTS (CIP) NO. 24-23,
AND FINDING THE PROJECT EXEMPT FROM THE CALIFORNIA ENVIRONMENTAL QUALITY ACT (CEQA) PURSUANT TO SECTION 15302 CLASS 2(C)
SEPTEMBER 9, 2025
PAGE 4
ATTACHMENT A
8/6/202511:04:22AM-Q:\PR0JECTS\IRVINE\64163\200-64163-23005\CAD\SHEETFILES\C01-TlTLESHEET.DWG-SMITH, STORM
IMPERIAL HIGHWAY
CENTURY FREEWAY -105
CENTURY FREEWAY 1-105 FOSTER
END
ROSECRANS
ABBREVIATIONSINDEXTOPROJECTDRAWINGS
SHEET NO.DESCRIPTION
CONSTRUCTION PLANS FOR
CAPITAL IMPROVEMENT PROJECT NO.24-23
FOSTER ROAD AND CARFAX AVENUE
DRAIN IMPROVEMENTS
GENERAL NOTES:
PROJECT 1.
2. PROJECT
UNDERGROUND STRUCTURES VICINITY MAPUTILITYANDAGENCYINDEX
NOT TO SCALE
15. 16.
17. 18.
19. 20.
UNAUTHORIZED CHANGES &USES
LEGEND 28.
EXISTING STORM DRAIN ACCESS COVER 29.
EXISTING SANITARY SEWER ACCESS COVER 30.BASIS OF BEARINGS EXISTING LIGHT POLE
RW EXISTING WATER METER
EXISTING SANITARY SEWER CLEANOUT
33.EXISTING POWER POLE
EXISTING SANITARY SEWER MAINTENANCE HOLE
EXISTING ELECTRIC VAULT
EXISTING TELECOMMUNICATIONS BOX
36.BENCHMARK EXISTING WATER VALVE
37.EXISTING FIRE HYDRANT
38. EXISTING TREE
0 EXISTING SHRUBS
VERT SCALE:"AS SHOWN
HORIZ SCALE:"AS SHOWN
SHEET
NORTHING
1808660.197
1799958.167
STATION
BKMS
DYH2
EASTING
6532950.945
6523004.006
TITLE SHEET.VICINITY MAP,AND CONSTRUCTION NOTES
STORM DRAIN PLAN AND PROFILE
STORM DRAIN DETAILS
STORM DRAIN DETAILS
CAUTION:THE ENGINEER PREPARING THESE PLANS WILL NOT BE RESPONSIBLE FOR,OR LIABLE FOR.UNAUTHORIZED CHANGES TO OR USES OF THESE PLANS.
ALL CHANGES TO THE PLANS MUST BE IN WRITING AND MUST BE APPROVED BY THE PREPARER OF THESE PLANS.
34. 35.
THE ELEVATIONS SHOWN HEREON ARE BASED UPON THE LOS ANGELES COUNTY PUBLIC WORKS BENCHMARK NUMBER EY11462.(2013 QUAD).THE
MONUMENT IS A LOS ANGELES COUNTY BENCHMARK TAG IN THE NORTH CURB 1 FOOT EAST OF THE BEGINNING OF THE CURB RETURN AT THE NORTHEAST CORNER OF WOODRUFF AVENUE AND FOSTER ROAD.
ALL UNDERGROUND UTILITIES OR STRUCTURES REPORTED BY THE OWNER OR
OTHERS AND THOSE SHOWN ON THE RECORDS EXAMINED ARE INDICATED WITH THEIR APPROXIMATE LOCATION AND EXTENT.THE OWNER BY ACCEPTING THESE
PLANS OR PROCEEDING WITH IMPROVEMENTS PURSUANT THERETO AGREES TO
ASSUME LIABILITY AND TO HOLD UNDERSIGNED HARMLESS FOR ANY DAMAGES
RESULTING FROM THE EXISTENCE OF UNDERGROUND UTILITIES OR STRUCTURES
NOT REPORTED TO THE UNDERSIGNED,NOT INDICATED ON THE PUBLIC RECORDS EXAMINED.OR LOCATED AT A VARIANCE WITH THAT REPORTED OR SHOWN ON RECORDS EXAMINED.THE CONTRACTOR IS REQUIRED TO TAKE DUE
PRECAUTIONARY MEASURES TO PROTECT THE UTILITIES OR STRUCTURES SHOWN AND ANY OTHER UTILITIES OR STRUCTURES FOUND AT THE SITE.IT SHALL BE THE
CONTRACTOR S RESPONSIBILITY TO NOTIFY THE OWNERS OF THE UTILITIES OR STRUCTURES CONCERNED BEFORE STARTING WORK.CONSTRUCTION
CONTRACTOR AGREES THAT IN ACCORDANCE WITH GENERALLY ACCEPTED CONSTRUCTION PRACTICES.CONSTRUCTION CONTRACTOR WILL BE REQUIRED TO
ASSUME SOLE AND COMPLETE RESPONSIBILITY FOR THE JOB SITE CONDITIONS DURING THE COURSE OF CONSTRUCTION OF THE PROJECT.INCLUDING SAFETY OF ALL PERSONS AND PROPERTY.THAT THIS REQUIREMENT SHALL BE MADE TO APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS.AND
CONSTRUCTION CONTRACTOR FURTHER AGREES TO DEFEND,INDEMNIFY AND
HOLD DESIGN PROFESSIONAL HARMLESS FROM ANY AND ALL LIABILITY,REAL OR ALLEGED.IN CONNECTION WITH THE PERFORMANCE OF WORK ON THIS PROJECT.
EXCEPT LIABILITY ARISING FROM THE SOLE NEGLIGENCE OF THE DESIGN PROFESSIONAL.
THE COORDINATES SHOWN HEREON ARE BASED UPON THE CALIFORNIA COORDINATE SYSTEM OF 1983.CCS83.ZONE 5.(2010.00 EPOCH)IN
ACCORDANCE WITH THE CALIFORNIA PUBLIC RESOURCES CODE SECTIONS 8801-8819;SAID COORDINATES ARE BASED LOCALLY UPON FIELD-OBSERVED
TIES TO THE FOLLOWING CALIFORNIA SPATIAL REFERENCE CENTER
CONTINUOUS OPERATING STATIONS
THE LOCATION OF EXISTING UTlLlTlES'UNDERGROUND FACILITIES KNOWN TO THE ENGINEER ARE SHOWN IN THEIR APPROXIMATE LOCATIONS BASED ON BEST AVAILABLE INFORMATION AT TIME OF PLAN PREPARATION.ACTUAL LOCATION,SIZE.TYPE.AND NUMBER OF UTlLlTlES/UNDERGROUND FACILITIES MAY DIFFER FROM THAT SHOWN.AND UTlLlTlES/FAClLlTlES MAY BE PRESENT THAT ARE NOT SHOWN.IT IS
THE CONTRACTOR'S RESPONSIBILITY TO HAVE THE SITE INSPECTED THROUGH USA PRIOR TO COMMENCING WORK AND TO VERIFY THE LOCATIONS OF ALL UTILITIES WITH RESPECTIVE OWNERS PRIOR TO STARTING WORK AND THROUGHOUT THE CONTRACT.
POTHOLE/HAND DIG AT UTILITY CROSSINGS/OBSTRUCTIONS.AND AREAS WHERE THE LOCATION OF UTILITIES AND UNDERGROUND FACILITIES ARE IN QUESTION PRIOR TO STARTING WORK.ANY CHANGES TO THE PROPOSED STORM DRAIN IMPROVEMENTS MUST BE APPROVED BY CITY.POTHOLING RESULTS SHALL BE PROVIDED TO THE ENGINEER SUFFICIENTLY IN ADVANCE OF START OF STORM DRAIN CONSTRUCTION TO ALLOW FOR RESOLUTION OF POTENTIAL CONFLICTS.
COORDINATE WITH THE OWNER OF ANY UTILITY OR OBSTRUCTION PRIOR TO RELOCATINGADJUSTING ANY SUCH ITEMS.
POTHOLE POCS TO DETERMINE EXISTING ELEVATIONS AND VERIFY MEANS OF CONNECTING PRIOR TO STARTING WORK.
WORK LIMITED TO THOSE HOURS AS STATED IN THE ENCROACHMENT AND OTHER CITY PERMITS.
CONTACT KENNY SOTO AT 562^145-5873 (DOWNEY UTILITIES YARD)SEWER AND STORM WATER DISTRIBUTION SUPERVISOR A MIN.OF 72-HRS PRIOR TO STARTING WORK TO SCHEDULE INSPECTION.
CONTRACTOR SHALL RESTORE.AT ITS COST.ANY ITEMS OUTSIDE THE LIMITS OF THE TRENCH WHICH ARE DAMAGED AS THE RESULT OF CONTRACTOR OPERATIONS.OR THOSE ITEMS DAMAGED WITHIN THE LIMITS OF THE TRENCH WHICH WERE TO REMAIN IN PLACE.ANY ITEMS REQUIRED TO REMAIN IN PLACE.SHALL BE RESTORED TO THEIR ORIGINAL CONDITION AND LOCATION THAT EXISTED PRIOR TO CONSTRUCTION.
THE LENGTH OF OPEN TRENCH SHALL BE LIMITED TO THE AMOUNT OF PIPE TO BE INSTALLED IN ONE DAY.PROTECT TRENCH FROM PEDESTRlAN/VEHlCULAR TRAFFIC PER CITY REQUIREMENTS INCLUDING BARRIERS.BACKFILL,COMPACTION,TEMPORARY PAVEMENT,AND STEEL PLATES.NO OPEN TRENCH AREAS SHALL REMAIN OVERNIGHT.
NO STORAGE OF MATERIALS/EQUIPMENT IN PUBLIC RIGHT-OF-WAY.PROVIDE OFFSITE STAGING/STORAGE AREA.
TRAFFIC CONTROL PER THE CALIFORNIA MANUAL OF UNIFORM TRAFFIC CONTROL DEVICES (MUTCD).AND AS REQUIRED BY THE TRAFFIC ENGINEER.
PIPE BASE.PIPE ZONE.AND TRENCH ZONE BACKFILL -IMPORTED CLASS 1 MATERIAL PER ASTM D2321 @ MIN.90%REL.COMPACTION.CERT.OF IMPORTED MATERIAL REQUIRED.
PAVEMENT ZONE -FOR AREAS CURRENTLY PAVED.AC PAVEMENT AND AGGREGATE BASE SHALL BE REPLACED TO EXISTING THICKNESS PLUS ONE INCH UNLESS OTHERWISE CALLED OUT IN THE PLANS AND SPECS.MIN.95%REL.COMPACTION.
SUBMIT CERTIFICATION OF PIPING AND MATERIALS FOR COMPLIANCE WITH CITY STANDARDS.ALL PIPING AND ASSOCIATED MATERIALS MUST BE IN-HAND PRIOR TO START OF CONSTRUCTION.
CONTRACTOR SHALL FURNISH THE CITY OF DOWNEY WITH RED-LINED CONSTRUCTION PLANS NOTING ANY AND ALL CHANGES TO THE PLAN,PROFILE,AND DETAILS OF THE STORM DRAIN IMPROVEMENTS INSTALLED.
EXISTING STORM DRAIN LINES TO BE REMOVED AND REPLACED BY THE PROJECT ARE NOT SHOWN ON THE PLANS FOR CLARITY.ALL EXISTING CMP STORM DRAINS ALONG THE ALIGNMENT OF THE PROPOSED IMPROVEMENTS SHALL BE REMOVED.
CONTRACTOR IS RESPONSIBLE FOR PROTECTING IN PLACE AND TEMPORARILY SUPPORTING THE EXISTING SCREEN WALL AS NEEDED.ANY DAMAGE TO THE WALL OR ITS FOUNDATION SHALL BE REPAIRED BY THE CONTRACTOR AT NO ADDITIONAL COST TO THE CITY.
CONTRACTOR SHALL REPLACE IN KIND ANY ASPHALT PAVEMENT.SIDEWALK,CURB,GUTTER,LANDSCAPE.AND IRRIGATION REMOVED OR DAMAGED DURING THE CONSTRUCTION OF THE PROPOSED IMPROVEMENTS AT NO ADDITIONAL COST TO THE CITY.HARDSCAPE SHALL BE REMOVED AND REPLACED TO THE NEAREST EXISTING JOINT.
CONTRACTOR TO VERIFY AND NOTIFY THE ENGINEER OF ANY DISCREPANCY BETWEEN PLANS AND FIELD CONDITIONS PRIOR TO CONSTRUCTION.DIMENSIONS OF EXISTING CONSTRUCTION WHERE SHOWN ON THESE DRAWINGS ARE NOMINAL AND SHOULD BE FIELD VERIFIED.SHOULD CONDITIONS EXIST WHICH ARE CONTRARY TO THOSE SHOWN ON PLANS.THE ENGINEER SHALL BE NOTIFIED IN WRITING BEFORE PROCEEDING WITH WORK.
ALL WORK SHALL BE DONE |N ACCORDANCE WITH THE "STANDARD SPECIFICATIONS FOR PUBLIC ’WORKS CONSTRUCTION,"LATEST EDITION.AS WRITTEN AND PROMULGATED BY PUBLIC WORKS STANDARDS.INC.
HEREIN REFERRED TO AS THE STANDARD SPECIFICATIONS (UNLESS SPECIFICALLY NOTED OTHERWISE OR IN THE SPECIAL PROVISIONS FOR THIS PROJECT).
THE CONTRACTOR SHALL OBTAIN A PERMIT FROM CALIFORNIA DIVISION OF INDUSTRIAL SAFETY FOR THE CONSTRUCTION OF TRENCHES OR EXCAVATIONS WHICH ARE FIVE FEET OR DEEPER.SHEETING, SHORING.AND BRACING FOR THE TRENCH EXCAVATION SHALL CONFORM TO THE REQUIREMENTS OF ’CONSTRUCTION SAFETY ORDERS."TITLE 8.DIVISION OF INDUSTRIAL SAFETY.STATE OF CALIFORNIA.
NOTES AND DETAILS ON THESE PLANS SHALL TAKE PRECEDENCE OVER GENERAL NOTES AND TYPICAL DETAILS.WHERE NO DETAILS ARE GIVEN.CONSTRUCTION SHALL BE AS SHOWN FOR SIMILAR WORK.
THE WORK SHOWN ON THESE PLANS REQUIRES THE PRIME CONTRACTOR TO POSSESS A VALID CALIFORNIA CLASS A CONTRACTOR’S LICENSE.
ANY UTILITY INVESTIGATION DONE BY EXPLORATORY EXCAVATION POTHOLING SHALL USE VACUUM EXTRACTION OR HAND EXCAVATION METHODS ONLY.
BEFORE CONSTRUCTION IS STARTED,THE CONTRACTOR SHALL COORDINATE WITH THE OWNER OF EACH UTILITY AND DEFINE THE REQUIREMENTS AND METHODS TO ACCOMMODATE THE PROTECTION, TEMPORARY SUPPORT.ADJUSTMENT.OR RELOCATION OF ANY UTILITIES AFFECTED BY THE PROPOSED WORK.
THE CONTRACTOR SHALL BE COGNIZANT OF ALL OVERHEAD LINES AT ALL TIMES.
ALL FIRE HYDRANTS.WATER CONTROL VALVES.AND MAINTENANCE HOLES SHALL BE KEPT FREE FROM OBSTRUCTIONS AND AVAILABLE FOR USE AT ALL TIMES.
IN CASE OF SUSPENSION OF WORK FROM ANY CAUSE.THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL MATERIALS AND SHALL PROPERLY STORE THEM IF NECESSARY AND SHALL ERECT TEMPORARY STRUCTURES WHERE NECESSARY.CITY WILL NOT BE HELD RESPONSIBLE FOR THE CARE OR PROTECTION OF ANY MATERIAL OR PARTS OF THE WORK PRIOR TO FINAL ACCEPTANCE.UNLESS OTHERWISE SPECIFIED.
THE CONTRACTOR SHALL MAINTAIN AND CLEAN,IF NECESSARY.ALL EXISTING ONSITE AND/OR ADJACENT STORM DRAIN INLETS AFFECTED BY CONSTRUCTION DURING THE COURSE OF CONSTRUCTION AND UNTIL THE WORK IS ACCEPTED BY THE CITY.
ALL CONSTRUCTION DEBRIS AND FOREIGN MATERIAL SHALL BE REMOVED FROM THE SITE OF THE WORK AND DISPOSED OF AT AN APPROVED DISPOSAL SITE.THE CONTRACTOR SHALL OBTAIN NECESSARY PERMITS FOR THE TRANSPORTATION AND DISPOSAL OF MATERIAL.
THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE PROTECTION OF ALL PROPERTY CORNER MARKERS.THE CONTRACTOR SHALL ALSO BE RESPONSIBLE FOR REPLACING ANY SURVEY MONUMENTS THAT ARE DISTURBED DURING CONSTRUCTION.PROPERTY CORNER MARKERSAND SURVEY MONUMENTS DAMAGED BY CONSTRUCTION ACTIVITIES SHALL BE RE-ESTABLISHED BY A PROFESSIONAL SURVEYOR LICENSED IN THE STATE OF CALIFORNIA.
CONSTRUCTION STAKING FOR IMPROVEMENTS SHOWN ON THESE PLANS SHALL BE PERFORMED BY A PROFESSIONAL LAND SURVEYOR POSSESSING A VALID STATE OF CALIFORNIA LAND SURVEYOR LICENSE.
THE CONTRACTOR ACKNOWLEDGES RESPONSIBILITY FOR JOBSITE SAFETY AND ACKNOWLEDGES THAT THE ENGINEER WILL NOT HAVE SUCH RESPONSIBILITY.IF A LAWSUIT IS FILED BY ONE OF THE CONTRACTOR'S OR SUBCONTRACTOR'S EMPLOYEES.OR ANY ONE ELSE.THE CONTRACTOR WILL INDEMNIFY.DEFEND AND HOLD THE OWNER AND TETRA TECH.INC.,THEIR PARENT AND SUBSIDIARY COMPANIES HARMLESS OF ANY AND ALL SUCH CLAIMS.
THE CONTRACT DRAWINGS AND SPECIFICATIONS REPRESENT THE FINISHED STRUCTURE.THEY DO NOT INDICATE THE METHOD OF CONSTRUCTION.THE CONTRACTOR SHALL PROVIDE ALL MEASURES NECESSARY TO PROTECT THE STRUCTURE.WORKERS AND PEDESTRIANS DURING CONSTRUCTION.SUCH MEASURES SHALL INCLUDE,BUT NOT BE LIMITED TO BRACING,SHORING FOR LOADS DUE TO CONSTRUCTION EQUIPMENT,TEMPORARY STRUCTURES.AND PARTIALLY COMPLETED WORK.ETC.OBSERVATION VISITS TO THE SITE BY THE ENGINEER SHALL NOT BE CONSIDERED AS INSPECTION OF SUCH ITEMS.
DIMENSIONS SHALL TAKE PRECEDENCE OVER SCALES SHOWN ON DRAWINGS.
UPON RECEIVING THE NOTICE TO PROCEED DATE.THE CONTRACTOR SHALL ISSUE A NOTICE BY U.S.MAIL,PREPARED OR APPROVED BY THE CITY.NOTIFYING RESIDENTS AND BUSINESSES WITHIN 500 FEET OF THE PROJECT LIMITS ABOUT THE SCHEDULED WORK.
2 WEEKS PRIOR TO THE START OF CONSTRUCTION,CONTRACTOR SHALL PREPARE AND DISTRIBUTE A NOTICE APPROVED BY THE CITY TO RESIDENTS AND BUSINESSES IMMEDIATELY ADJACENT TO THE PROJECT LIMITS.
CONTRACTOR SHALL PREPARE AND INSTALUPLACE A PROJECT SIGN ON ALUMINUM BACKING AND MOUNTED ON TWO (2)4X4 WOODEN POSTS WITHIN THE PROJECT LIMITS.THE SIGN SHALL PROVIDE INFORMATION REGARDING THE PROJECT.CONSTRUCTION DATES AND TIMES.ALONG WITH GENERAL AND EMERGENCY CONTACT INFORMATION.LETTERS USED ON THE SIGN SHALL BE 4 TO 6 INCHES HIGH.
ARCH REINFORCED CONCRETE PIPE (RCP)SHALL BE MADE IN ACCORDANCE TO ASTM C-506 AND CONFORM TO SECTION 207-2 REINFORCED CONCRETE PIPE OF THE SSPWC.ARCH RCP SHALL HAVE A TONGUE AND GROOVE JOINT WITH RUBBER GASKETS.MINIMUM D-LOAD FOR ARCH RCP SHALL MEET CLASS IV REQUIREMENT.TRENCHING.BACKFILLING.AND INSTALLATION OF PIPES SHALL CONFORM TO SECTION 306 OF THE SSPWC.
CEMENT FOR CONCRETE SHALL BE TYPE ||/V PORTLAND CEMENT CONFORMING TO ASTM C150.
REINFORCEMENT SHALL BE DEFORMED BARS CONFORMING TO ASTM A615.GRADE 60 SHALL BE USED EXCEPT THAT «3 BARS AND SMALLER MAY BE GRADE 40 STEEL.
13. 14.
CIP 24-23 FOSTER ROAD AND CARFAX AVENUE
STORM DRAIN IMPROVEMENTS
TITLE SHEET,VICINITY MAP,AND CONSTRUCTION NOTES
31. 32.
OF SHEETS
25. 26.
27. 39.
40. J.
4. 5.
6. 21.
22. 23.
24. 10.
11. 12.
ABAN ABANDONED MUTCD MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES
AC ASPHALT CONCRETE NAD NORTH AMERICAN DATUM
ANG ANGLE NAVD NORTH AMERICAN VERTICAL DATUM
AGG AGGREGATE NO NUMBER
ASTM AMERICAN SOCIETY FOR TESTING AND MATERIAL OC ON CENTER
AVE AVENUE OCEW ON CENTER EACH WAY
BC BEGINNING OF CURVE OD OUTSIDE DIAMETER
BLVD BOULEVARD PCC PORTLAND CONCRETE CEMENT
BM BENCHMARK PH POTHOLE
BOP BOTTOM OF PIPE PP POWER POLE
CB CATCH BASIN POC POINT OF CONNECTION
CERT CERTIFICATE PSI POUNDS PER SQUARE INCH
CL CLASS.CENTERLINE H 1
PVC POINTPOLYVINYL CHLORIDECLRCLEARRRADIUSCMBCRUSHEDMISCELLANEOUSBASERDROAD
REINFORCED CONCRETE PIPECMPCORRUGATEDMETALPIPERCPDIA
DR DIAMETER
DRIVE REL RELATIVE
DWG DRAWING RW RECLAIMED WATER
EC END OF CURVE R/W,ROW RIGHT OF WAY
EX.EXIST EXISTING S SOUTH.SLOPE
E,ELEC ELECTRICAL SCH SCHEDULE
EB
ELEV
ELEC PULLBOX
ELEVATION
ELECTRICAL MANHOLE
SD
SDM
STORM DRAIN
STORM DRAIN MANHOLE
EMH SE SAND EQUIVALENT.SOUTHEAST
E/O EAST OF SHT SHEET
FH FIRE HYDRANT SSPWC STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION
FO FIBEROPTIC SS SANITARY SEWER,STAINLESS STEEL
FS FINISHED SURFACE SPPWC STANDARD PLANS FOR PUBLIC WORKS CONSTRUCTION
FT FEET ST STREET
G GAS STRUT STRUCTURAL
GS GAS SERVICE STA STATION
HORIZ HORIZONTAL STD STANDARD
HR HOUR SO SQUARE
ID IDENTIFICATION TC TOP OF CURB
IN INCH TEL TELEPHONE
INV INVERT TEM TELEPHONE MANHOLE
IRR IRRIGATION TOP TOP OF PIPE
IRV IRRIGATION VALVE TYP TYPICAL
LBS POUNDS UE UNDERGROUND ELECTRIC
LF LINEAR FEET USA UNITED STATES OF AMERICA
LP LIGHT POLE UT UNDERGROUND TELEPHONE
M|N MINIMUM W WATER.WEST.WIDEMAXMAXIMUMWMWATERMETER
MH MANHOLE WV WATER VALVE
MM MILLIMETER VERT VERTICAL
STORMWATER CONSTRUCTION NOTES
PROTECT IN PLACEM
0 TO BE REMOVED
REMOVE (2)EXISTING 18"x11"ARCH CMP STORM DRAINS AND INSTALL (2)NEW 18’x11’ARCH RCP STORM DRAINS PER DETAIL 1 ON SHEET 4.
©REMOVE EXISTING 29~x18"ARCH CMP STORM DRAIN AND INSTALL NEW 29"x18’ARCH RCP STORM DRAIN PER DETAIL 1 ON SHEET 4.
©REMOVE EXISTING PIPE CONNECTIONS AND MODIFY CATCH BASIN SIDE WALL FOR THE CONNECTION OF (2)ARCHED RCP STORM DRAINS PER DETAIL 5 ON SHEET 3. 0 REMOVE EXISTING CATCH BASIN AND CONSTRUCT NEW CATCH BASIN PER DETAIL 4 ON SHEET 3. ©REMOVE EXISTING JUNCTION STRUCTURE AND CONSTRUCT NEW JUNCTION STRUCTURE PER DETAIL 2 ON SHEET 3.
©CONSTRUCT HORIZONTAL BEND WITH CONCRETE COLLAR PER SPPW'C STD PLAN NO.380-1.L=18", T=7".
©REMOVE EXISTING CONCRETE COLLAR AND CONSTRUCT NEW SHALLOW JUNCTION STRUCTURE PER DETAIL 1 ON SHEET 3.
©INSTALL NEW CONNECTOR PIPE SCREEN PER DETAIL 2 ON SHEET 4. ©INSTALL 2-SACK CEMENT SLURRY BACKFILL (20O-E-10O)ABOVE EXISTING UTILITY CROSSING.
INSTALL NO DUMPING STENCIL PER DETAIL 3 ON SHEET 3.
CITY OF DOWNEY WATER &SEWER 562-904-7202
CITY OF DOWNEY TRAFFIC ENGINEER 562-904-7110
COUNTY SANITATION DISTRICT OF LOS ANGELES TOMMY SUNG 562-699-7411 X 1205 LA COUNTY DEPARTMENT OF PUBLIC HEALTH (DPH)DAN BACANI 626-430-5290 STATE WATER RESOURCES CONTROL BOARD MATT MEGILL 818-551-2033 FRONTIER COMMUNICATION (VERIZON)RAYMOND ROUNDTREE 562-903-7939 LA COUNTY FLOOD CONTROL DISTRICT (LACFCD)MARYAM ADHAMI 626-458-3129 SOUTHERN CALIFORNIA EDISON SAUL VALLE 562-903-3176
CENTRAL BASIN MUNICIPAL WATER DISTRICT ISABELLE GUIDO 323-201-5541 SOUTHERN CALIFORNIA GAS COMPANY ERNIE GONZALEZ 714-634-3121 SPECTRUM (TIME WARNER CABLE)ERNEST CHANG 562-383-9989
MWD KEN CHUNG 213-217-7670
LEVEL 3 1 WILTEL COMMUNICATIONS ROGER WEATHERS 720-888-5688 ABOVENET COMMUNICATIONS KEVIN SULLIVAN 714-236-8502
MCI WORLDCOM DON BECKERMANN 626-666-3526
SPRINT JOE HEALEY 714-781-7048
CROWN CASTLE (NEXTG NETWORKS)RON HERRERA 909-593-9700
CHARTER COMMUNICATIONS STEVE FEAR 626-430-3338
LUMEN AREA REPRESENTATIVE 877-366-8344
ZAYO AREA REPRESENTATIVE 801-364-1063
AT&T JOHN VIERRA 209-604-9679
CALIFORNIA AMERICAN WATER ABDUL HAJIZADA 916-568-4216
PARK WATER COMPANY COORDINATOR 562-923-0711
CITY OF BELLFLOWER FRANK PRECIADO 562-804-1424
CITY OF NORWALK GLEN KAU 562-929-5525
UNDERGROUND SERVICE ALERT (USA)—8-1-1
STREET CENTERLINE
EASEMENT
RIGHT-OF-WAY
Isom]
PROPOSED STORM DRAIN J
EXISTING RECLAIMED WATER LINE [wm]
EXISTING WATER LINE
EXISTING GAS LINE •co
—O—
EXISTING SANITARY SEWER
EXISTING UNDERGROUND ELECTRICAL LINE
EXISTING OVERHEAD ELECTRICAL LINE
EXISTING FENCE
No REVISION DATE BY APP
Underground Service Alert
Call:TOLL FREE
811
TWO WORKING DAYS BEFORE YOU DIG
Er j-SIgAdp.»-30-26 M
PLANS PREPARED BY:DESIGNED BY:J.S/N.P./J.A.DATE
TRj1 1 RA i kCH &»•*xLJIWe.aitnM Wtuvrn.tetrawcti.coni iv»m tM»a»o»:
DRAWN BY:N.P./J.A.07/31/25
CHECKED BY:J.S.08/06/25
08'061’25
*R.C£.NO.85736 DATE
APPROVED BY:71932
DIRECTOR OF PUBLIC WORKS/OTY ENGINEER RCE DATE
3 ATTACHMENT BATTACHMENT B
PLANS PREPARED BY:DATER.C.E. NO. 85736 www.tetratech.com17885 Von Karman Ave, Suite 500Irvine, California, 92614Phone: (949) 809-5000VERTICAL: 1"= 5'HORIZONTAL: 1"= 40'PROFILE SCALE:100% DESIGN SUBMITTAL08/06/25NSTORM DRAIN PLAN AND PROFILE808590951008085909510010+0012+0011+0013+0014+0015+0016+000SCALE:20'40'80'1'' = 40'STA 15+30.56 ± INV (89.00' ±)
STA 11+17.26INV 90.02' LINE "A2"INV 90.02' LINE "B2"STA 10+45.80INV 90.48' LINE "A1"INV 90.36' LINE "B1"66.25 LF18"X11" RCP ARCH162.47 LF 29"X18" RCP ARCHSTA 10+08.79INV 90.54' LINE "A1"INV 90.42' LINE "B1"STA 10+50.99INV 90.30' LINE "A2"INV 90.22' LINE "B2"STA 11+21.27INV 89.89'
6.20° HORIZ. BEND
STA 12+83.73
INV 89.53'
STA 15+34.56
INV (88.92' ±)EX. GRADEEX. CBSTA 10+07.49RIM= 93.43'NEW CBSTA 10+47.81RIM= 93.43'EX. 8" SEWEREX. 2" GASEX. 8" WATEREX. 24" RCPSCE ROWSCE ROW246.83 LF29"X18" RCP ARCHNOTE:-18"X11" RCP LINES "B1" AND "B2" ARE SHOWN IN PROFILE VIEW. 18"X11" RCP LINES "A1" AND "A2" ARE NOT SHOWN FOR CLARITY.37.01 LF18"X11"RCP ARCHNEW JUNCTION STRUCTURESTA 11+18.75RIM= 94.11'S = -0.0022S = -0.0022x x x x
1.0' MIN.S = -0.0017S = -0.0031NEW JUNCTION STRUCTURESTA 15+34.56RIM= 92.42'EX. 8" SEWER(ENCASED) STORMWATER CONSTRUCTION NOTESA PROTECT IN PLACEB TO BE REMOVED1REMOVE (2) EXISTING 18"x11" ARCH CMP STORM DRAINS AND INSTALL (2) NEW 18"x11" ARCH RCPSTORM DRAINS PER DETAIL 1 ON SHEET 4.2REMOVE EXISTING 29"x18" ARCH CMP STORM DRAIN AND INSTALL NEW 29"x18" ARCH RCP STORMDRAIN PER DETAIL 1 ON SHEET 4.3REMOVE EXISTING PIPE CONNECTIONS AND MODIFY CATCH BASIN SIDE WALL FOR THECONNECTION OF (2) ARCHED RCP STORM DRAINS PER DETAIL 5 ON SHEET 3.4REMOVE EXISTING CATCH BASIN AND CONSTRUCT NEW CATCH BASIN PER DETAIL 4 ON SHEET 3.5REMOVE EXISTING JUNCTION STRUCTURE AND CONSTRUCT NEW JUNCTION STRUCTURE PERDETAIL 2 ON SHEET 3.6CONSTRUCT HORIZONTAL BEND WITH CONCRETE COLLAR PER SPPWC STD PLAN NO. 380-4. L=18",T=7".7REMOVE EXISTING CONCRETE COLLAR AND CONSTRUCT NEW SHALLOW JUNCTION STRUCTUREPER DETAIL 1 ON SHEET 3.8INSTALL NEW CONNECTOR PIPE SCREEN PER DETAIL 2 ON SHEET 4.9INSTALL 2-SACK CEMENT SLURRY BACKFILL (200-E-100) ABOVE EXISTING UTILITY CROSSING.10INSTALL NO DUMPING STENCIL PER DETAIL 3 ON SHEET 3.GENERAL NOTES:POINT TABLEPT#1Northing1789722.01Easting6527820.93Line TableLINE #L1L2L3L4LENGTH47.81'70.94'164.98'250.83'BEARINGS 74°10'02" WS 5°33'54" EN 83°59'08" ES 89°48'45" EWVSSWVWVWVWVWM WMWMWM WMWVWVWVWVEB xxxxxxxxxxxxxxxxxxxxx
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SSxxxSSWRWRWRWSSOEOEOEOEOEOEOEOEOEOEOEOEWWGGRWRWRWRWRWRWxxOEOEOEOEOEOEOEOEUEOESSSSRW 60'80'40'13246 CARFAX AVE.13240 CARFAX AVE.13234 CARFAX AVE.13230 CARFAX AVE.10294 BELCHER ST.10288 BELCHER ST.10282 BELCHER ST.10278 BELCHER ST.10309 FOSTER RD.10303 FOSTER RD.10283 FOSTER RD.10279 FOSTER RD.PT #1EB STA 10+47.81NEW CBSTA 10+07.49EXISTING CBSTA 12+83.736.20 DEGREEHORIZ. BEND15+34.5610+0011+0012+0013+0014+0015+00STA 10+00CARFAX AVENUEFOSTER ROADBELCHER STREETSAN GA B
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REX.WMEX.SS EX. MAILBOXEX.WALLEX. 24" RCP(OWNED BY OTHERS)EX. 24"Ø OUTLETSTRUCTURECITY OF DOWNEYCITY OF BELLFLOWERNEW JUNCTIONSTRUCTUREMHSTA 11+18.7510 LF EX. TREE TYP. EX. TREE TYP.EX. 8" WATEREX. 2" GASEX. 8" SEWEREX. 30" RECLAIMED WATEREX. 6" RECLAIMED WATEREX. 12" RECLAIMED WATEREX. 6" SEWERSCE ROWCITY ROWCITY ROWSCE ROW3114622EX. ELECTRICALLINE "A1"LINE "B1"LINE "A2"LINE "B2"AAAAAA97ROAD C/L10' STORM DRAIN EASEMENTPER SD AS-BUILT#021026FUTURE DEVELOPMENTLACFCD ROWLACFCD EASEMENT88510EX. 8" SS (ENCASED)PROPOSED 10'STORM DRAINEASEMENTBEX. FENCEEX. FENCEBSTA 15+34.56NEW JUNCTIONSTRUCTUREEX. FENCEL1L2L3L410 EX. TREETYP.B
RIM ELEVATION PER SHEET 2.24" MANHOLE FRAME AND COVERPER SPPWC 630-5POLYPROPYLENE - PLASTIC STEPS.LANE MODEL P-14938PER SPPWC 636-3.#4 @ 12" O.C., TYP.6" MIN.10"6" TYP4'-0"±5'-0"#4 @ 12" O.C.E.W. @ TOP.TRIM AT MANHOLE OPENING.#4 @ 12" O.C.E.W., TYP.EX. 24"Ø RCP29"x18" RCPARCH29"x18" RCP ARCHINV. PERSHEET 2INV. PERSHEET 2SLOPE3" COVER TYP6" SUBGRADE SCARIFY ANDCOMPACT TO 95% RELATIVECOMPACTION TYP.3" COVERTYP.ROUGHENED SURFACETYP.PLANSECTION ASECTION B6" SUBGRADE SCARIFY ANDCOMPACT TO 95% RELATIVECOMPACTION TYP.EX. 24"Ø RCP29"x18" RCPARCH2'-6"5'-0"6"TYP.(3) ADDITIONAL #5 @ 2" O.C. EACHSIDE OF MANHOLE OPENING TYP.24" MANHOLE FRAME AND COVERPER SPPWC 630-5AB 2" CLR TYP.2'-6"STA 15+34.566" MIN.#5 @ 6" O.C.E.W.@ BOTTOM. TRIMAT MANHOLEOPENING.2" COVER TYP.169.6°±FS#4 @ 12" O.C.E.W., TYP.#4 @ 12" O.C.E.W. @ TOP.TRIM AT MANHOLE OPENING.#5 @ 6" O.C.E.W.@ BOTTOM. TRIMAT MANHOLEOPENING.ADDITIONAL #5BARS ATMANHOLEOPENING. SEEPLAN VIEW.ADDITIONAL #5 BARS ATMANHOLE OPENING. SEEPLAN VIEW.NOTES:1)CONCRETE FOR JUNCTION STRUCTURE ON DETAIL 1 OF THIS SHEET SHALL BE AMINIMUM OF 5000 PSI.24" MANHOLE FRAME AND COVERPER SPPWC 630-5.RIM ELEVATION PER SHEET 2.POLYPROPYLENE - PLASTICSTEPS. LANE MODEL P-14938PER SPPWC 636-3.3" COVERTYP.6" TYP.4'-0"29"x18" RCP ARCH4'-9"±(2) 18"x11" RCP ARCHROUGHENED SURFACETYP.29"x18"RCP ARCHSLOPE#4 @ 12" O.C.E.W., TYP.(2) 18"x11" RCP ARCH3"INV. PERSHEET 2INV. PERSHEET 23" COVER TYP.#4 @ 12" O.C.E.W.TRIM AT MANHOLE OPENING.ROUGHENED SURFACETYP.4'-9"±AB(2) ADDITIONAL #4 @ 2" O.C.THREE SIDES OF MANHOLEOPENING TYP.24" MANHOLE FRAME AND COVERPER SPPWC 630-54'-0"29"x18" RCPARCH(2) 18"x11"RCP ARCHPLANSECTION ASECTION B6" MIN.6" SUBGRADE SCARIFY ANDCOMPACT TO 95% RELATIVECOMPACTION TYP.6" SUBGRADE SCARIFY ANDCOMPACT TO 95% RELATIVECOMPACTION TYP.6'-0"STA 11+18.756" 6" MIN.FS#4 @ 12" O.C., TYP.ADDITIONAL #4BARS ATMANHOLEOPENING. SEEPLAN VIEW.NOTES:1)SAWCUT AND REMOVE PORTION OF THE EXISTING CONCRETE WALL AS SHOWN.2)DRILL AND EPOXY NEW REINFORCEMENT INTO EXISTING WALL.3)NEW REINFORCING BARS SHALL BE EMBEDDED 4" MINIMUM INTO EXISTING CONCRETE WALL WITH SIMPSON SET-3G EPOXY. INSTALL PERMANUFACTURER RECOMMENDATIONS.4)ALL CONCRETE SHALL BE PORTLAND CEMENT CONCRETE WITH A 28 DAY COMPRESSIVE STRENGTH OF 4000 PSI.SECTION ASECTION BREMOVAL ANDRECONSTRUCTION LIMITSEXISTING LANDSCAPEEXISTING STREET GRADEPORTION OF CATCH BASINTO REMAINREMOVE AND RE-CONSTRUCT PORTIONOF CONCRETE GUTTERAND LOCAL DEPRESSION PER SPPWCSTD 313-4, CASE A.SEE PLAN VIEW FOR LIMITS OFRECONSTRUCTION.REMOVE TWO EXISTING 18"x11" CMP STORMDRAINS AND CONSTRUCT TWO NEW 18"x11"RCP ARCH PIPES PER PLANEXISTINGACCESSCOVERTO REMAINEXISTING TCTO REMAINEXISTING GUTTERTO REMAINPORTION OF CATCHBASIN TO REMAINREMOVE ANDRE-CONSTRUCT PORTIONOF CATCH BASIN SIDEWALL, GUTTER, ANDLOCAL DEPRESSION.EXISTING GUTTERTO REMAINREMOVE TWO EXISTING 18"x11" CMP STORMDRAINS AND CONSTRUCT TWO NEW 18"x11"RCP ARCH PIPES PER PLANREMOVAL ANDRECONSTRUCTION LIMITS(3) #4 DOWELS EACHSIDE. 18" LONG. SEENOTES 2 AND 3. TYP.INVERTS PER PLANEXISTINGPOLYPROPYLENE -PLASTIC STEPSPROTECT IN PLACE.EXISTING ACCESS COVERTO REMAINREMOVE TWO EXISTING 18"x11" CMP STORMDRAINS AND CONSTRUCT TWO NEW 18"x11"RCP ARCH PIPES PER PLANEXISTING TCEXISTING TCAND ROOF SLABTO REMAINEXISTING CONCRETEGUTTER AND LOCALDEPRESSION TO REMAIN.REMOVE AND RE-CONSTRUCTPORTION OF CONCRETE GUTTERAND LOCAL DEPRESSION PER SPPWC313-4, CASE A. MATCH EXISTINGDIMENSIONS.BPLANPROTECT EXISTING FACE PLATE ASSEMBLY, SUPPORTBOLT, AND PROTECTION BAR. CONTRACTOR SHALLPROVIDE TEMPORARY SUPPORT OF THE TOP SLABDURING RECONSTRUCTION OF THE CATCH BASIN SIDEWALL AND GUTTER BELOW.3"(5) #4 DOWELS INTO BASESLAB. 8" LONG. SEE NOTES2 AND 3. TYP.7'-0"4'-6"SAWCUT TYP.A#4 DOWELS CENTERED INWALLS AND FLOOR SLAB.SEE SECTION B.48"±51"±SAWCUT TYP.EXISTING CATCHBASIN TO REMAINBOTTOM OFTOP SLAB TOREMAINCLCL3" TYP.EXISTING LANDSCAPEEXISTING STREETGRADEREMOVE AND RE-CONSTRUCTADJACENT CONCRETE GUTTERAND LOCAL DEPRESSION PERSPPWC STD 313-4 CASE A.W = 6'-0", K = 5'-0", L = 6'-0",M = 4'-0", AND N = 5'-0".CURB FACE = ±7" AND H = ± 5".18"x11" RCP ARCH PIPESPER PLAN.MANHOLE FRAME& COVER PERSPPWC 312-5INVERTS PER PLANPOLYPROPYLENE - PLASTIC STEPS.LANE MODEL P-14938PER SPPWC 636-3.FACE PLATE ASSEMBLY ANDPROTECTION BAR PER SPPWC 310-4.4" TYP.B = 5'-0"NOTES:1)CONSTRUCT PER SPPWC STANDARD DETAIL 300-4, B=5'-0", W = 6'-0", t=6", V = 3'-0".3" TYP.INSTALL TOP SLABREINFORCEMENT SIMILAR TOSPPWC 300-4, MODIFIED FOR #4BARS AT 6" O.C.E.W.6" SUBGRADE SCARIFYAND COMPACT TO 95%RELATIVE COMPACTION TYP.PLANS PREPARED BY:DATER.C.E. NO. 85736 www.tetratech.com17885 Von Karman Ave, Suite 500Irvine, California, 92614Phone: (949) 809-5000100% DESIGN SUBMITTAL08/06/25STORM DRAIN DETAILS2NTSREFERENCE SHEET 021NTSNEW JUNCTION STRUCTURE (STA 15+34.56)REFERENCE SHEET 02NEW JUNCTION STRUCTURE (STA 11+18.75)3NTS"NO DUMPING" STENCILREFERENCE SHEET 025NTSREFERENCE SHEET 02EXISTING CATCH BASIN MODIFICATION (STA 10+07.49)4NTSREFERENCE SHEET 02NEW CATCH BASIN (STA 10+47.81)NOTE:STENCIL OR PLACARD SHALL BE PLACED ONTOP OF CURB OR INLET.
5 MM OPENINGSCREEN 14 GAUGEL= AL= A+2BL= A+B1" X 112" DEFLECTORSUPPORT BRACKET TYP.SS 304 PERFORATEDANGLE 2"X2" 14 GAUGEDEFLECTORSS-304 WEDGE ANCHOR3/8" X 3" (TYP) @ 12" O.C.1" X 112" ANGLE14 GAUGESS-304 SELF DRILLINGSCREW 3/16 (TYP.) ORCRES DOME HEAD RIVETSSS 304PERFORATEDANGLE 2"X2" 14GAUGE (TYP.)14 GAUGESS 304PERFORATEDANGLE 2"X2"14 GAUGESS 304PERFORATEDANGLE 1" X112"- 14 GAUGE304 STAINLESS STEELSCREEN 14 GAUGE.OPENING SHAPE (5 MM)SS 304PERFORATEDANGLE 1" X 112" -14 GAUGE (TYP.)PROPOSEDCONNECTORPIPE1" X 112" BRAKE OR BENT14 GAUGE5 MM OPENINGSCREEN 14 GAUGE5 MM OPENINGSCREEN 14 GAUGEELEVATION VIEWCONFIGURATIONS2" X 2" X 1/4" SS 304 PIANO HINGE2" X 2" X 1/4" SS 304 PIANO HINGEC.B.M.H.CURB FACEDEFLECTORPROPOSEDCONNECTORPIPE5 MMOPENINGSCREEN14 GAUGESS 304 5 MM OPENINGPERFORATED "Z" SCREEN14 GAUGE ONE PIECE.1" X 112" DEFLECTOR SUPPORT BRACKET. BOTHLEGS OF THE DEFLECTOR SUPPORT BRACKETMUST EXTEND TO THE TOP OF THE DEFLECTORAND ALSO EXTEND AT LEAST TO THE BOTTOMOF THE MOUNTING BRACKET.SS-304 SELF DRILLINGSCREWS 3/16 TOTAL 4BOTTOM BRACKET AND2 TOPSS 304 WEDGE ANCHOR3/8" X 3" (2 EACH) (TYP.)1" X 112" PERFORATEDANGLE 14 GAUGEMOUNTING BRACKETSECTION XDETAIL 1TOPC.BGUTTERPROPOSED C.B.(CONFIGURATIONL=A+B SHOWN)SEE DETAIL 1BELOWPROPOSEDCONNECTOR PIPEC.B.M.H.DEFLECTORPLANXPLANS PREPARED BY:DATER.C.E. NO. 85736 www.tetratech.com17885 Von Karman Ave, Suite 500Irvine, California, 92614Phone: (949) 809-5000100% DESIGN SUBMITTAL08/06/25STORM DRAIN DETAILS1NTSSTORM DRAIN TRENCHREFERENCE SHEET 02NOTES:1.INSTALL NON-WOVEN 180N GEOTEXTILE (MIRAFI OR APPROVED EQUAL) AROUNDBEDDING AND INITIAL BACKFILL. OVERLAP 6" MINIMUM.2.BEDDING AND INITIAL BACKFILL TO BE COMPACTED TO AT LEAST 90% RELATIVECOMPACTION.3.NON-EXPANSIVE GRANULAR ON-SITE SOIL FREE OF DEBRIS, ORGANICS, OVERSIZEDMATERIAL (LARGER THAN 3 INCHES), AND OTHER DELETERIOUS MATERIALS MAY BEUSED FOR FINAL BACKFILL. BACKFILL SHALL COMPACTED TO AT LEAST 90%RELATIVE COMPACTION.PIPEHEIGHT PIPE WIDTHPIPE LAYOUT WIDTHPIPE HEIGHT2NTSCATCH BASIN CONNECTOR PIPE SCREENREFERENCE SHEET 02NOTES:1.INSTALL UNITED STORM WATER CONNECTOR PIPE SCREEN (CPS) MODELUSW-2M2 FIXED SCREEN WITH HINGED DEFLECTOR ACCESS.2.GENERAL VENDOR DETAILS ARE SHOWN. ALL PROJECT SPECIFIC SIZING,DETAILING, AND CONFIGURATION SHALL BE BY THE CONTRACTOR.18"x11" ARCH RCP29"x18" ARCH RCPTRENCH WIDTH8" MIN.FINAL BACKFILL. NATIVEMATERIAL. SEE NOTE 3.INITIAL BACKFILL. CLASS 1 MATERIALPER ASTM D2321. SEE NOTES 1 & 2.6" MIN. BEDDING.CLASS 1 MATERIAL PER ASTM D2321.SEE NOTES 1 & 2.12" MIN.6" MINSCARIFY SUBGRADE 6" ANDCOMPACT TO 90% RELATIVECOMPACTION.TRENCH WIDTH + 1'-0"14" MIN.6" MIN8" MIN.TRENCH WIDTH6"MIN.6"MIN.EXISTING ACPAVEMENTNEW AC PAVEMENT SHALL BE1" THICKER THAN EXISTINGAND NOT LESS THAN 8"AGG BASE @ 95%RELATIVE COMPACTIONLANDSCAPED FSPER PLANINSTALL DETECTABLEMARKING TAPE TYP.3"INSTALL DETECTABLEMARKING TAPE TYP.SAWCUT, TYP.