HomeMy WebLinkAboutR-276503STO ORMWATER DRRE ANY AINAGE
PM� AC1. TIVITY OCCURS. A PRECONSTRUCTION ®JlRADIN-t-wJ AND STORM ®C.Y', DRAINAGE PLAN
MEETING MUST BE HELD WITH THE CITY OF RENTON DEPARTMENT OF PUBLIC WORKS,
DESIGN ENGINEER. A PORTION OF SOUTHWEST 1/4 CITY
SOUTHWEST 1/4, SECTION 3, TOWNSHIP 23 NORTH, RANGE 5 EAST, W.M.
2. ALL CONSTRUCTION SHALL DE IN ACCORDANCE PAL THE RUCTI STANDARD CI 1 OF RELATION, KING COUNTY, WASHINGTON . �r'cCiFK:A710NS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION' PREPARED BY
WSDOT AND THE AMERICAN PUBLIC WORKS ASSOCIATIONS (APWA), AS AMENDED BY
THE CITY OF RENTON DEPARTMENT OF PUBLIC WORKS.
3. THE STORM DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED
PLANS WHICH ARE ON FILE IN THE DEPARTMENT OF PUBLIC WORKS. ANY DEVIATION
FROM THE APPROVED PLANS WILL REQUIRE WRITTEN APPROVAL FROM THE CITY OF
RENTON DEPARTMENT OF PUBLIC WORKS, DESIGN ENGINEER OR STORM WATER UTILITY.
4, A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER
CONSTRUCTION IS IN PROGRESS.
5. DATUM SHALL BE U.S.G.S UNLESS OTHERWISE APPROVED BY CITY OF RENTON
DEPARTMENT OF PUBLIC WORKS. REFERENCE BENCHMARK AND ELEVATION ARE NOTED
ON THE PLANS.
6. ALL SEDIMENTATION/EROSION FACILITIES MUST BE IN OPERATION PRIOR TO CLEARING
AND BUILDING CONSTRUCTION, AND THEY MUST BE SATISFACTORILY MAINTAINED; UNIIL
CONSTRUCTION IS COMPLETED AND THE POT04W FOR ON -SITE EROSION HAS PASSED.
7. ALL RETENTION/DETENTION FACILITIES MUST BE INSTALLED AND IN OPERATION PRIOR TO
OR IN CONJUNCTION WITH ALL CONSTRUCTION ACTIVITY UNLESS OTHERWISE APPROVED
BY THE DEPARTMENT OF PUBLIC WORKS, STORM WATER UTILITY.
8. GRASS SEED MAY BE APPLIED BY HYDROSEEDING. THE GRASS SEED MIXTURE, OTHER
THAN CITY OF RENTON APPROVED STANDARD MIXES, SHALL BE SUBMITTED BY A
LANDSCAPE ARCHITECT AND APPROVED BY THE DEPARTMENT OF PUBLIC WORKS, STORM
WATER UTILITY.
9. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARE FOUNDATION
IN ACCORDANCE WITH SECTION 7-02.3(1) OF THE CURRENT STATE OF WASHINGTON
STANDARD SPECIFICATION FOR ROAD AND BRIDGE CONSTRUCTION. THIS SHALL INCLUDE
NECESSARY LEVELING OF THE TRENCH BOTTOM OR THE TOP OF THE FOUNDATION
REQUIRED BEDDING MATERIAL
MATERIAL AS WELL AS PLACEMENT AND COMPACTION OF RE Q
TO UNIFORM GRADE SO THAT THE ENTIRE LENGTH OF THE PIPE WILL BE SUPPORTED ON
A UNIFORMLY DENSE UNYIELDING BASE. ALL PIPE BEDDING SHALL BE APWA CLASS "C;
WITH THE EXCEPTION OF PVC PIPE ALL TRENCH BACKFILL SHALL BE COMPACTED TO
MINIMUM 95 PERCENT FOR PAVEMENT AND STRUCTURAL FILL AND 90 PERCENT
OTHERWISE PER ASTM D-1557-70. PFA GRAVEL BEDDING SHALL BE 6 INCHES AND OVER
AND UNDER PVC PIPE
10. GALVANIZED STEEL PIPE AND ALUMINIZED STEEL PIPE FOR ALL DRAINAGE FACILITIES
SHALL HAVE ASPHALT TREATMENT /1 OR BETTER INSIDE AND OUTSIDE
11. STRUCTURES SHALL NOT BE PERMITTED WITHIN 10 FEET OF THE SPRING LINE OF ANY
STORM DRAINAGE PIPE, OR 15 FEET FROM THE TOP OF ANY CHANNEL BANK.
12. ALL CATCH BASIN GRATES SHALL BE DEPRESSED 0.10 FELT BELOW PAVEMENT LEVEL
13. OPEN CUT ROAD CROSSINGS AND EXISTING PUBLIC RIGHT-OF-WAY WILL NOT BE
ALLOWED UNLESS SPEaRCA LY APPROVED BY CITY OF RENTON DEPARTMENT OF PUBLIC
WORKS, DESIGN ENGINEER.
14. ROCK FOR EROSION PROTECTION OF ROADSIDE DITCHES, WHERE REQUIRED, SHAH BE
OF SOUND QUARRY ROCK PLACED TO A. DEPTH OF 1 FOOT AND MUST MEET THE
FOLLOWING SPECIFICATIONS: 4 INCHES TO 8 INCHES/40 PERCENT TO 70 PERCENT
PASSING; 2 INCHES TO 4 INCHES ROCK/30 PERCENT TO 40 PERCENT PASSING; AND --2
INCHES ROCK/10 PERCENT TO 20 PERCENT PASSING.
15- ALL BUILDING DOWNSPOUTS AND FOOTING DRAINS SHALL BE CONNECTED TO THE
STORM DRAINAGE SYSTEM UNLESS APPROVED BY THE DEPARTMENT OF PUBLIC WORKS,
DESIGN ENGINEER OR STORMWATER UTILITY. AN ACCURATELY DIMENSIONED CERTIFIED
AS -BUILT DRAWING OF THIS DRAINAGE SYSTEM WILL BE SUBMITTED TO THE CITY OF
RENTON UPON COMPLETION.
16. ISSUANCE OF THE BUILDING OR CONSTRUCTION PERMIT BY THE CITY OF RENTON DOES
NOT RELIEVE THE OWNER OF THE CONTINUING LEGAL OBLIGATION AND/OR LIABILITY
CONNECTED WITH STORM SURFACE WATER DISPOSITION. FURTHER, THE CITY OF
RENTON DOES NOT ACCEPT ANY OBLIGATION FOR THE PROPER FUNCTIONING AND
MAINTU:uCE OF THE SYSTEM PROVIDED DURING CONSTRUCTION.
17. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARD,
SAFETY DEVICES, PROTECTED EQUIPMENT, FAQ. AND ANY OTHER NEEDED
ACTIONS TO PROTECT THE LIFT, HEALTH, AND SAFETY OF THE PUBLIC, AND TO PROTECT
PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK COVERED BY THE
CONTRACT. ANY WORK WITHIN THE TRAVELED RGHT-OF-WAY THAT MAY INTERRUPT
NORM& TRAFFIC FLOW SHALL REQUIRE AN APPROVED TRAFFIC CONTROL PLAN BY THE
TRAFFIC ENGINEERING DIVISM OF THE DEPARTMENT OF PUBLIC WORKS. ALL SECTIONS
OF THE WSDOT STANDARD SPECIFICATIONS 1-0723, TRAFFIC CONTROL, SHALL APPLY.
I& SPECIAL DRAINAGE MEASURES WILL BE REQUIRED IF THE PRDJECT LOCATION IS WITHIN
THE AQUIFER PROTECTION AREA
STOMA DRAINAGE PIPE SPECIFICATIONS
ALL STORM DRAIN PIPE MAY BE CONSTRUCTED OF ONE OF THE FOLLOWING MATERIALS UNLESS
OTHERWISE SPECIFIED IN THE PLANS. ALL PIPE JOINTS MUST BE GASKETED WATERTIGHT AND
MUST BE OF THE SAME U47O V- AS THE PIPE. ALL PIPE SHALL HAVE A MINIMUM COVER AS
SPECIFIED AND SHALL BE ADEQUATELY PROTECTED DURING CONSTRUCTION (REFER TO THE
MANUFACTUREWS RECOMMENDATIONS FOR MINIMUM COVER FOR HEAVY EQUIPMENT LOADINGS).
A DUCTILE IRON - 4 POC H THROUGH 14 INCH DIAMETER PIPE SHALL BE CLASS 52 AND 16-INCH
THROUGH 24-INCH DIAMETER PIPE SHALL BE CLASS 50. ALL IN ACCORDANCE WITH USA
STAND A-21.1 (AWWA C-51)- ALL JOINTS SHALL BE PUSH -ON, MECHANICAL, OR
RANGED (6-INCH MINIMUM CDVM).
B- CONCRETE - 4 INCH THROUGH 18 INCH DIAMETER PIPE SHALL BE NON -REINFORCED, BELL AND
SPIGOT WITH RUBBER GASKET JOINTS, CONFORMING TO ASTM C-4 (CLASS II). 21 INCH
THROUGH 36 INCH OWMET€R PPE SPALL BE REINFORCED. BELL AND SPIGOT WITH RUBBER
GASKET JOINTS, CONFORMING TO ASTM C-76 (2 FOOT YINMUM COVER).
C. PVC - 4 INCH THROUGH 18 RICH DYIYETER PIPE, WITH 24-INCH TO 36-INCH OF COVER SHALL
BE IN ACCORDANCE WITH ASIM D3034 SDR 21. 4-INCH THROUGH 18-INCH DIAMETER PIPE,
WITH ASTM D3034 SDR 35 SHALL HAVE 36-INCH MINIMUM COVER. ALL JOINTS SHALL BE
PUSH -ON WITH RUBBER CASKETS. PVC SFM PPE REQUIRES A.C. COLLARS (I.E.. CATCH
BASIN CONNECTION) OR KOR-N-SEAL CONCRETE BOOTS.
D. HELMAI- CORRliG1TE PLANT AWYINU M PPE (COP) - 6 INCH THROUGH 18 INCH DIAMETER
PIPE SHALL BE 16 GAUGE WITH 2 2/3 INCH X 1/2 MpE CORRIIfAl10NS 21 INCH THROUGH
36 INCH D114 ETER PIPE SHALL BE 14 GAUGE WITH 2 1/3 INCH X 1/2 INCH CORRUGATIONS.
REFER TO DETAILS M THESE PLANS FOR ANY PIPES LARGER THAN 36 INCH DIAMETER. ALL
ALUMINIZED PIPE SHALL HAVE ASF%4LT TREATMENT 1 COATING (20-FOOT MINIMUM COVER).
E HELICAL CORRUGATED STEEL PPE (HCMP) - 6 INCH THROUGH 36 INCH SHALL BE 16 GAUGE
WITH 2 2/? ^ 311 X 1/2 RICH CORRUGATIONS. ALL STEEL MATERIALS SHALL BE GALVANIZED
AND ASPHALT HffATMENT 1 COATED. REFER TO DETAILS IN THESE PI I :"S FOR ANY PIPES
LARGER THAN 36 INCHES IN DIAMETER (2A-FOOT M R4MUM COVER).
F. CORRUGATED POLYLTHELE1E_ MEETING THE REQUIREMENTS OF AASHTO M-294, TYPE S. MINIMUM
PIPE DIAMETER SHALL BE 8" MAXMINN PPE DVAOM SHALL BE 36" OR THE DIAMETER FOR
WHICH THE SUPPLER NVS A JOINT CONFORYNG TO ASTM D 3212, WHICHEVER IS LESS. JOINTS
SHALL BE CLASSIFIED AS '111ATERRGHT'. WATERMGHT JOINTS SIW1 BE MADE WITH A SLEEVE
OR WITH A BELL SPIGOT AND SHILL CONFORM TO AT,'. D 3212 (10.8 PSI' USING ELASTOMERIC
GASKETS CONFORMING TO ASTM IF477. CASIETED JOINTS SHALL BE WBT�CZ D AS RECOMMENDED
BY THE PRODUCER DURING INSTALLATION. ^Sg0IGH1' JOINTS SHALL NOT BF PERMITTED.
FITTINGS SHALL BE BLOW MOLDED. ROTATIONAL MOLDED. OR FACTORY WELDED, THERMOPLASTIC
PIPE FITTINGS SHALL MEET THE REQUREMENTS SET FORTH IN AASHTO M 294.
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MEASURED WITH TAP
EASEMENT (PER SHORT
SIDEWALK DRIVEWAY OR ALLEY
EXPANSION JOINTS
SEE NOTE 2
su• A A
318"JOINTS SIDN 2$,klt'IMt
SEE NOTE 2 44
" SEE NOTE 1 Ali SIDEWALK N„ s^ MsmMlrlk
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CURB AND GUTTER \
ALTERNATE 1 pR ,,, `-SEE ➢ETAIL "A"
SHOWN HOWEVER,
OTHER CURBS MAY
WHEN THERE IS A PLANTING STRIP ,y EXPANSION JOINT BE USED (SEE SECTION A -A
STANDARD PLANS)
3/8" EXPANSION
JOINTS
SEE NOTE 2 DRIVEWAY OR ALLEY SCORE LINE
3/8" EXPANSION DETAIL A
JOINTS SEE 1 gppRGACH WITH
SEE NOTE 2 SIDEWALK MGNGLITHIC CURB
SEE NOTE 5
as
ALTERNATE 2 M„ �
WHEN SIDEWALK IS NEXT TO CURB
NDTE- CEMENT CONCRETE DRIVEWAY
1. DUMMY JOINTS SHALL BE PLACED NOT TO EXCEED 15'C/CNOR LESS THAN 10' C:C. THEY SHALL OR ALLEY APPROACH
NOT BE LESS THAN 3/16" IN THICKNESS AND SHALL EXTEND 2-1/4" DEEP.
2 1/2" THRU JOINTS SMALL BE PLACED AT BACK, SIDES. AND FRONT (BEHIND CURB) OF APPROACH.
3 CEMENT CONCRETE SHALL BE CLASS 3D00 AIR ENTRAINEDp
4 ALL JOINTS SHALL BE CLEANED AND EDGED.
5 APPROACH SHALL NOT BE POURED INTEGRAL WITH CURB AND GUTTER, BUT MAY BE POURED
-INNTEGRAL WITH STANDARD CURB (SEE DETAIL "A").
6. SUBGRA➢E COMPACTION SHALL BE 95% MODIFIED PROCTOR: I'9L°�Iy�s/AI
RflnSioN BY R DWG. NAME: FRONN SP PAGE:FOO6
CAST IRON FRAME &
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FORMED IN PLACE
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TRENCH DRAIN DETAIL
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WATER VALVE
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