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Home My WebLink AboutR-276507STORMWATER DRAINAGE PNOTES:1. BEFORE ANY CONSTRUCTION MENT ACTIVITY OCCURS, A PRECONSTRUCTION GRADING AND STORM DRAINAGE PLAN MEETING MUST BE HELD WITH THE CITY OF RENTON DEPARTMENT OF PUBLIC WORKS, DESIGN ENGINEER. A PORTION OF SOUTHWEST 1/4 OF SOUTHWEST1//4, SECTION 3, TOWNSHIP 23 NORTH, RANGE 5 EAST, W.M. 2. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE "1988RUCTI STANDARD CITY OF RENTION, KING COUNTY, WASHINGTON SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION" PREPARED BY CITY � 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 UNTIL CONSTRUCTION IS COMPLETED AND THE POTENTIAL 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 HA BE LAID ON A PR OPERLY 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 MATERIAL AS WELL AS PLACEMENT AND COMPACTION OF REQUIRED BEDDING MATERIAL 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. PEA 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 FEET BELOW PAVEMENT LEVEL. 13. OPEN CUT ROAD CROSSINGS AND EXISTING PUBLIC RIGHT-OF-WAY WILL. NOT BE ALLOWED UNLESS SPECIFICALLY APPROVED BY CITY OF RENTON DEPARTMENT OF PUBLIC WORKS, DESIGN ENGINEER. 14. ROCK FOR EROSION PROTECTION OF ROADSIDE DITCHES, WHERE REQUIRED, SHALL 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 MAINTENANCE OF THE SYSTEM PROVIDED DURING CONSTRUCTION. 17. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARD, SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, 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 RIGHT-OF-WAY THAT MAY INTERRUPT .. NORMAL TRAFFIC FLOW SHALL REQUIRE AN APPROVED TRAFFIC CONTROL PLAN BY THE TRAFFIC ENGINEERING DIVISION OF THE DEPARTMENT OF PUBLIC WORKS. ALL SECTIONS OF THE WSDOT STANDARD SPECIFICATIONS 1-07.23, TRAFFIC CONTROL, SHALL APPLY. 18. SPECIAL DRAINAGE MEASURES WILL BE REQUIRED IF THE PROJECT LOCATION IS WITHIN THE AQUIFER PROTECTION AREA. STORM 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 MATERIAL AS THE PIPE. ALL PIPE SHALL HAVE A MINIMUM COVER AS SPECIFIED AND SHALL BE ADEQUATELY PROTECTED DURING CONSTRUCTION (REFER TO THE MANUFACTURER'S RECOMMENDATIONS FOR MINIMUM COVER FOR HEAVY EQUIPMENT LOADINGS). A. DUCTILE IRON - 4 INCH 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 STANDARD A-21.1 (AWWA C-51). ALL JOINTS SHALL BE PUSH -ON, MECHANICAL, OR FLANGED (6-INCH MINIMUM COVER). 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 11). 21 INCH THROUGH 36 INCH DIAMETER PIPE SHALL BE REINFORCED, BELL AND SPIGOT WITH RUBBER GASKET JOINTS, CONFORMING TO ASTM C-76 (2 FOOT MINIMUM COVER). C. PVC - 4 INCH THROUGH 18 INCH DIAMETER PIPE, WITH 24-INCH TO 36-INCH OF COVER SHALL BE IN ACCORDANCE WITH ASTM 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 GASKETS. PVC STORM PIPE REQUIRES A.C. COLLARS (I.E., CATCH BASIN CONNECTION) OR KOR-N-SEAL CONCRETE BOOTS. D. HELICAL CORRUGATED PLAIN ALUMINUM PIPE (CMP) - 6 INCH THROUGH 18 INCH DIAMETER PIPE SHALL BE 16 GAUGE WITH 2 2/3 INCH X 1/2 INCH CORRUGATIONS. 21 INCH THROUGH 36 INCH DIAMETER PIPE SHALL BE 14 GAUGE WITH 2 1/3 INCH X 1/2 INCH CORRUGATIONS. REFER TO DETAILS IN THESE PLANS FOR ANY PIPES LARGER THAN 36 INCH DIAMETER. ALL ALUMINIZED PIPE SHALL HAVE ASPHALT TREATMENT 1 COATING (2.0-FOOT MINIMUM COVER). E. HELICAL CORRUGATED STEEL PIPE (HCMP) - 6 INCH THROUGH 36 INCH SHALL BE 16 GAUGE WITH 2 2/3 INCH X 1/2 INCH CORRUGATIONS. ALL STEEL MATERIALS SHALL BE GALVANIZED AND ASPHALT TREATMENT " COATED. REFER 10 DETAILS IN THESE PLANS FOR ANY PIPES LARGER THAN 36 INCHES IN DIAMETER (2.0-FOOT MINIMUM COVER). F. CORRUGATED POLYETHELENE MEETING THE REQUIREMENTS OF AASHTO M-294, TYPE S. MINIMUM PIPE DIAMETER SHALL BE 8". MAXIMUM PIPE DIAMETER SHALL BE 36" OR THE DIAMETER FOR WHICH THE SUPPLIER HAS A JOINT CONFORMING TO ASTM D 3212, WHICHEVER IS LESS. JOINTS SHALL BE CLASSIFIED AS "WATERTIGHT". WATERTIGHT JOINTS SHALL BE MADE WITH A SLEEVE OR WITH A BELL SPIGOT AND SHALL CONFORM TO ASTM D 3212 (10.8 PSI) USING ELASTOMERIC GASKETS CONFORMING TO ASTM F 477. GASKETED JOINTS SHALL BE LUBRICATED AS RECOMMENDED BY THE PRODUCER DURING INSTALLATION. SOILTIGHT" JOINTS SHALL NOT BE PERMITTED. FITTINGS SHALL BE BLOW MOLDED, ROTATIONAL MOLDED, OR FACTORY WELDED. THERMOPLASTIC PIPE FITTINGS SHALL MEET THE REQUIREMENTS SET FORTH IN AASHTO M 294. 7VD- fro -. ?&r ,TAT ION !NG 11- A' HIX BF UIS B 4J I ME AND x unn N o+uG I� I Ili Ii I) I I ; ! 393.78. I _ 7t l�- - at IE=39C.17(8" PVC E) � I: 12 DD .` !��f E. 389.57(8" CONC W) \ myi E EXISTING CB ° �iIM 393 55 I CONC E: , j Lk2 I.-- EXIS-NG MON. WELL---_ I_.„�_ ll 1 it EX611NG j' II ^I POWER VAULT l-, .HT � BOX RE. HYDRANT N0 WAT R VALVE EXISTING CB-O--\ III RIM=394.82 II Ih=369,0908" CONC N) E=331 7 \II IE=384.06 - "X S ING S:Aa-0 Pofid 3 77 le-SSo..,I 8 GJNC- -/ !E:=386.91W, PVC W) v 1 TVUNC BRASS NAIL - W/PUNC.H SET' 'N A 4 CONC. MOT7. ` A CASE EX!S: SSMhi-i: RIM=395.43 IE-366.82(8` CONC Sl F 38c 96(8' VVC SE) IE.4.,7 _S8 -VC SW') � ,3653;8 CGNC ^I7 EXISTING - TEL_PI10NE _„ MANHOLE ff EXISTING ,.GHT J BOX - ANE, LJM NA'RE E'XIS N., WATER VALVE.. -Xis'ING DHH B E=4,8 a 5 E 8H 89(7 CONC N) IL-38999ti8" 14- L-3904e(5 CM 1N) Ex StN CS-1- RIM 954- E 39CMP E) 'E=38 6 2 CMP NW) Chip' IE=_9�.. j j9U EXISTING SSMY,-A R161 -395.' 7 IE=385.6I:(8.. 1E=39-13i8" CGNC S, EXISTING SDIIAH-A RIM=394.93 ,E= 89 G(18" CGNC S' IE=389.00f18" CGNC _ EXISTING CB-B IE=390.46(24` CAP NW) 1 IE=393.G1 a" CMP) iI IE CB #5'TYPE 1" S) 1�I Exls�Nc Jj PAVEMENT 1�5 938'55" E 704 L - M4.71 394.W� 5 70A i �A-z-.336--I •.. CB .&rl_F 12' SO @ .9%- 5 LF 12'SO@1.0% EXIST'f4G CHAIN LINK FENCE -EX!S-NG 36- CA? MEASURED 'di,iH TAPE !E=388.311 i! EXISTING cONC WALL IV! CHAIN LINK FOA.E -EXISTING 35 CMIE 39'.84(TOP) ?A.ASUREJ WITH. TAPE =38B.8-`.E) -EXISTING 2 ' DRAINAGE EASEAENT (PER SHORT PLAT) - IE=389.25 CB P. TYPE 2-54" SIDEWALK DRIVEWAY OR ALLEY �g EXPANSION JOINTS SEE NOTE 2 3/8"JOINTS SIDN 2b?o yp Lk @ 4' xw�k SEE NOTE 2 3 SEE NOTE I A�i SIDEWALK Im, wwiii nn ALTERNATE 1 CURB AND GUTTER A`v SEE DETAIL "A " SHOWN HOWEVER, WHEN THERE IS A PLANTING STRIP OTHER CURBS MAY 10' EXPANSION JOINT SE USED (SEE SECTION A -A STANDARD PLANS) 3/8" E%PANSION JOINTS SEE NOTE 2 DRIVEWAY OR ALLEY �1 SCORE LINEx A 3/6" EXPANSION �$ �^� DETAIL A JIDNTS SEE NOTE 1 SEE NOTE APPROACH WITH 2 s SIDEWALK MONOLITHIC CURB SEE NOTE 5 A ALTERNATE 2 WEN SIDEWALK IS NEXT TO CURB NOTFi CEMENT CONCRETE DRNEN'AY L DUN- JOINTS SHALL HE PLACED NOT TO EXCEED 15' C/C NOR LESS THAN 10' C/C. THEY SHALL OR ALLEY APPROACH NET BE LESS THAN 3/16" IN THICKNESS AND SHALL EXTEND 2-1/4" DEEP. Z V/ THRU JOWTS SHALL BE PLACED AT HACK, SIDES AND FRONT (BEHIND CURB) OF APPROACH. 3. CEMENT NSHALL BE CLASS 30D0 AIR ENTRAINED airp JOINTS SHALL AD Leo 4. ALL JDTS SHALL CLEANED AND EDGED. oe n 5. APPROACH STALL NOTT BE POURED INTEGRAL WITH CURB AND GUTTER, BUT MAY BE POURED SN GRAL WITH EM STANDARD CURB (SEE DETAIL "A") PROCTOR. 6. SUHGRADE [@PACTIDN SHALL HE 95% MODIFIED PROCTOR. GATE REVI8i0N HY pppR DWG. NAME. M01N SP PAGE: FOOS INSTALL 86 LF TRENCH DRAIN PER DETAIL THIS SHEET. x s➢ l I 93 LF 6' DIA CMP DETENTION PIPE - SEE SHEET C5 SLOPE FLOOF p TRENCH DRAI TO 6" OUTLE 39t, 2, TYPE 2-54" SEE SHT C5 FOR DETAILS 13 LF 6" DI ® 0.50% - 18.9 , LF 12" DI 0 I CB 3, TYPE 1 E�97 12') 9.16 (N 8 W) C56, ° O 9Q TYPE 11` 34:38' 39�35 1-W 391.49 02" E) -EX'S N!G L-EXSTNG WOGD LAJRE FENCE FUND REBAR HEjGE C E DI., JRBE::) EXISTNG RAILROAi T!E PLANTER -EX-SUNG C'RIVENAY -EX STINC mml_R VALVE !L FORMED IN PLACE TRENCH DRAIN DETAIL 0 Q J W LL LL Z O U W Z O Ir ^W J z III 0 Z UW°' Cn ® U I-- Z Z W � `< IL <Q C R _ U CL co O > F_ li 0 J o W m rn = C7 U OzLd 3� a� X O ~ Q zw j N u- 3 Z 476507Q 0CD 0 N � Z > z Q D Do rl Zz 3U0ir �z sLnN N Z Zv m N Z N N f y// >�7/Y9 ?0 LL, � Jy� Sb dam, Z 4 r 1t� 2 r:,T19 P� P. G,, i, y� ` �I�I�e pF WAS �vp� o CONS) y 23975 p �� cr) _i/ u®L T EXPIRES 6-10-99 U SCANNED MAY - 5 1999 1=0; (Q-276J`a� /*/ AC- a?6-rL'7 SCANNED NIAR 3 0 2000 IERo,6 2 0 5