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Home My WebLink AboutR-371005N LO O tl7 4� J n F- IZ O U) Cr O L W Z STORM WATER STANDARD PLAN NOTES 1. THESE NOTES SHALL APPEAR ON PROJECTS FOR THE SURFACE WATER UTILITY. 2. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE - CONSTRUCTION MEETING MUST BE HELD BETWEEN THE CITY OF RENTON PLAN REVIEW SECTION AND THE APPLICANT. 3. ALL DESIGN AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE RENTON MUNICIPAL CODE (RMC), THE LATEST EDITION OF THE STANDARD SPECIFICATIONS FOR ROAD, BRIDGE, AND MUNICICPAL CONSTRUCTION PREPARED BY WSDOT AND THE AMERICAN PUBLIC WORKS ASSOCIATION (APWA), AS AMENDED BY THE CITY OF RENTON PUBLIC WORKS DEPARTMENT. IT SHALL BE THE SOLE RESPONSIBILITY OF THE APPLICANT AND THE PROFESSIONAL CIVIL ENGINEER TO CORRECT ANY ERROR, OMISSION OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THESE PLANS. ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST TO THE CITY. 4. APPROVAL OF THIS ROAD, GRADING, PARKING AND DRAINAGE PLAN DOES NOT CONSTITUTE AN APPROVAL OF ANY OTHER CONSTRUCTION (e.g. DOMESTIC WATER CONVEYANCE, SEWER CONVEYANCE, GAS, ELECTRICAL, ETC.). tHE SURFACE WATER DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVAED PLANS, WHICH ARE ON FILE WITH THE CITY. ANY DEVIATION FROM THE APPROVED PLANS WILL REQUIRE WRITTEN APPROVAL FROM THE CITY OF RENTON PUBLIC WORKS DEPARTMENT, SURFACE WATER UTILITY SECTION. 5. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. 6. GRADING ACTIVITIES (SITE ALTERATION) ARE LIMITED TO THE HOUYRS OF 7 A.M. TO 7 P.M., MONDAY THROUGH SATURDAY AND NO WORK ON SUNDAY IS ALLOWED, UNLESS OTHERWISE APPROVED WITH A WRITTEN DECISION BY THE CITY OF RENTON. 7. IT SHALL BE THE APPLICANT /CONTRACTOR'S RESPONSIBILITY TO OBTAIN ALL CONSTRUCTION EASEMENTS NECESSARY BEFORE INITIATING OFF -SITE WORK. EASEMENTS REQUIRE CITY REVIEW AND APPROVAL PRIOR TO CONSTRUCTION. 8. FRANCHISED UTILITIES OR OTHER INSTALLATIONS THAT ARE NOT SHOWN ON THESE APPROVED PLANS SHALL NOT BE CONSTRUCTED UNLESS AN APPROVED SET OF PLANS THAT MEET ALL REQUIREMENTS OF CHAPTER 4 OF THE SURFACE WATER DESIGN MANUAL ARE SUBMITTED TO THE CITY OF RENTON. 9. DATUM SHALL BE NAVD 88 UNLESS OTHERWISE APPROVED BY THE CITY OF RENTON. REFERENCE BENCHMARK AND ELEVATIONS ARE NOTES ON THE PLANS. 10. ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF STORMWATER FACILITIES MUST BE SUBMITTED TO THE CITY OF RENTON FOR REVIEW AND APPROVAL. 11. ALL UTILITY TRENCHES AND ROADWAY SUBGRADE SHALL BE BACKFILLED AND COMPACTED TO 95% (PERCENT) DENSITY, STANDARD PROCTOR. 12. OPEN CUTTING OF EXISTING ROADWAYS FOR NON- FRANCHISED UTILITY OR STORM DRAINAGE WORK IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY OF RENTON AND NOTED ON THESE APPROVED PLANS. ANY OPEN CUT SHALL BE RESTORED IN ACCORDANCE WITH THE CITY OF RENTON TRENCH RESTORATION STANDARDS. 13. ALL SEDIMENTATION /EROSION FACILITIES MUST BE OPERATION PRIOR TO CLEARING AND BUILDING CONSTRUCTION, AND THEY MUST BE SATISFACTORILY MAINTANED UNTIL CONSTRUCTION IS COMPLETED AND THE POTENTIAL FOR ON -SITE EROSION HAS PASSED. 14. ALL RETENTION /DETENTION FACILITIES MUST BE INSTALLED AND IN OPERATION PRIOR TO OR IN CONJUNCTION WITH ALL CONSTRUCTION ACTIVITY UNLESS OTHERWISE APPROVED BY THE PUBLIC WORKS DEPARTMENT, SURFACE WATER SECTION. 15. ALL PIPES AND APPURTENANCES SHALL BE LAID ON THE PROPERLY PREPARED FOUNDATION IN ACCORDANCE WITH THE CURRENT STATE OF WASHINGTON STANDARD SPECIFICATION OF 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. 16. STEEL PIPE SHALL BE ALUMINIZED, OR GALVANIZED WITH ASPHALT TREATMENT #1 OR BETTER INSIDE AND OUTSIDE. 17. ALL DRAINAGE STRUCTURES, SUCH AS CATCH BASINS AND MANHOLES SHALL HAVE SOLID LOCKING LIDS, UNLESS OTHERWISE SHOWN ON THE APPROVED PLANS. ALL DRAINAGE STRUCTURES ASSOCIATED WITH A PERMANENT RETENTION /DETENTION FACILITY SHALL HAVE SOLID LOCKING LIDS. 18. BUILDING AND OTHER STRUCTURES SHALL BE PLACED IN ACCORDANCE WITH TABLE 4.1 EASEMENT WIDTHS AND BUILDING SETBACK LINES. 19. ALL CATCH BASIN GRATES SHALL BE DEPRESSED 0.10 FEET BELOW PAVEMENT LEVEL. 20. ALL DRIVEWAY CULVERTS LOCATED WITHIN COTY OF RENTON RIGHT-OF-WAY SHALL BE OF SUFFICIENT LENGTH TO PROVIDE A MINIMUM 3:1 SLOPE FROM THE EDGE OF THE DRIVEWAY TO THE BOTTOM OF THE DITCH. ROCK FOR EROSION PROTECTION OF ROADWAY DITCHES, WHERE REQUIRED, SHALL BE OF SOUND QUARRY ROCK PLACED TO A DEPTH OF ONE (1) FOTT AND MUST MEET THE FOLLOWING SPECIFICATIONS: 4 - 8 INCH ROCK / 40 - 70% PASSING; 2 - 4 INCH ROCK / 30 - 40% PASSING; AND LESS THAN 2 INCH ROCK / 10 - 20% PASSING. 21. ALL BUILDING DOWNSPOUTS AND FOOTING DRAINS SHALL BE CONNECTED TO THE STORM DRAINAGE SYSTEM, UNLESS APPROVED BY THE CITY PLAN REVIEWER OR SURFACE WATER UTILITY SECTION. AN ACCURATELY DIMENSIONED, CERTIFIED AS -BUILT DRAWING OF THIS DRAINAGE SYSTEM WILL BE SUBMITTED TO THE CITY UPON COMPLETION. 22. DRAINAGE OUTLETS (STUB -OUTS) SHALL BE PROVIDED FOR EACH INDIVIDUAL LOT, EXCEPT FOR THOSE LOTS APPROVED FOR INFILTRATION BY THE CITY. STUB -OUTS SHALL CONFORM TO THE FOLLOWING: A. EACH OUTLET SHALL BE SUITABLY LOCATED AT THE LOWEST ELEVATION ON THE LOT, SO AS TO SERVICE ALL FUTURE ROOF DOWNSPOUTS AND FOTTING DRAINS, DRVIEWAYS, YARD DRAINS, AND ANY OTHER SURFACE OR SUBSURAFCE DRAINS NECESSARY TO RENDER THE LOTS SUITABLE FOR THIER INTENDED USE. EACH OUTLET SHALL HAVE FREE- FLOWING, POSITIVE DRAINAGE TO AN APPROVED STORMWATER CONVEYANCE SYSTEM OR TO AN APPROVED OUTFALL LOCATION. B. OUTLETS ON EACH LOT SHALL BE LOCATED WITH A FIVE -FOOT HIGH, 2 "x4" STAKE MARKED "STORM" OD "DRAIN ". THE STUB -OUT SHALL EXTEND ABOVE SURFACE LEVEL, BE VISIBLE, AND BE SECURED TO THE STAKE. C. PIPE MATERIAL SHALL CONFORM TO UNDERDRAIN SPECIFICATIONS DESCRIBED IN CHAPTER 4 OF THE SURFACE WATER DESIGN MANUAL AND, IF NON- METALLIC, THE PIPE SHALL BE PLACED IN A TRENCH WITH A TRACING WIRE ABOVE OR OTHER ACCEPTABLE DETECTION. D. PRIVATE DRAINAGE EASEMENTS ARE REQUIRED FOR DRAINAGE SYSTEMS DESIGNED TO CONVEY FLOWS THROUGH INDIVIDUAL LOTS. E. THE APPLICANT /CONTRACTOR IS RESPONSIBLE FOR COORDINATING THE LOCATIONS OF ALL STUB -OUT CONVEYANCE LINES WITH RESPECT TO OTHER UTLILITES (e.g. POWER, GAS, TELEPHONE, TELEVISION). 22 F. ALL INDIVIDUAL STUB -OUTS SHALL BE PRIVATELY OWNED AND MAINTAINED BY THE LOT /HOME OWNER. G. STORM DRAINAGE PIPE SYSTEMS SHALL NOT PENETRATE BUILDING FOUNDATIONS, EXCEPT FOR SUMP PUMP DISCHARGE LINES USED TO DRAIN CRAWL SPACES, PROVIDED THE SUMP PUMP SYSTEM INCLUDES BACKFLOW PREVENTION OR A CHECK VALVE. 23. ALL DISTURBED AREAS (COMPACTED, GRADED, LANDSCAPED, ETC.) OF THE DEVELOPMENT SITE MUST DEMONSTRATE ONE OF THE FOLLOWING: THE EXISTING DUFF LAYER SHALL BE STAGED AND REDISTRIBUTED TO MAINTAIN THE MOISTURE CAPCITY OF THE SOIL, OR; AMENDED SOIL SHALL BE ADDED TO MAINTAIN THE MOISTURE CAPACITY. 24. PROOF OF LIABILITY INSURANCE SHALL BE SUBMITTED TO THE CITY PRIOR TO CONSTRUCTION PERMIT ISSUANCE. 25. ISSUANCE OF THE BUILDING OR CONSTRUCTION PERMITS BY THE CITY OF RENTON DOES NOT RELIEVE THE OWNER OF THE CONTINUING LEGAL OBLIGATION AND /OR LIABULTY 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. 26. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARD, SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDED ACTIONS TO PROTECT THE LIFE, HEALTH, AND SAFETY OF THE PUBLIC, AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK. ANY WORK WITHIN THE TRAVELED RIGHT -OF -WAY THAT MAY INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE A TRAFFIC CONTROL PLAN APPROVED BY THE PUBLIC WORKS DEPARTMENT, TRANSPROTATION SYSTEMS DIVISION. ALL SECTIONS OF THE WSDOT STANDARD SPECIFICATIONS 1 -07 -23 TRAFFIC CONTROL SHALL APPLY. 27. PROJECT LOCATED WITHIN THE AQUIFER PROTECTION AREA (APA) SHALL COMPLY WITH SPECIAL REQUIREMENT 6 OF THE SURFACE WATER DESIGN MANUAL AND AQUIFER PROTECTION REGULATIONS RMC 4 -3 -050). C.2.2 FULL INFIL17RATION FIGUREC.22A TYPICALTRENCIILNFffi I 110NSYSFEa4 If PLAN VIEW omen NTS 4"rigelor6nexmle ............. ..................... ....... .�� perlare[etl Pipe mflVaton irerrl, sump w/sotitl IM PLAN VIEW rld� NTS overflow 4' rigid or e'Ibxible perforated Pi spry, dpak . r' pe 6^ washed rack rl Z.C.- o min SA'min i 12'314' ti' C °oo @'min ...... - - -- .v..n.......^ Afwemes, \-CBsumpw /saidlid a es falter Isom - -, oampaaetl ba idil 4'r9,dorTilexible pipe 24" 70 ou V `a0 °pain 0 wasned rack Ir �p°oo Oai^s IW_3I. I o "o,yOV•. L�'-z4• I SECTION A NITS 2009 Su [fxc H'ue[ikSg,MmuN- AppTOizC 19/2009 GRAVEL - FILLED TRENCH - LIMITED INFILTRATION 30' 8' LANDSCAPE - STRIP CATCH BASIN & STORM PIPE NE 7th STREET N.T.S. WE Iw IZ 1., Z to SAW CUT - 4" MIN. CLASS "B" ASPHALTIC CONCRETE PAVEMENT- 2 -2" LIFTS REQUIRED 6" MIN. CRUSHED SURFACING TOP COURSE CRUSHED SURFACING BASE COURSE TO BE DETERMINED BY GEOTECH BASED UPON FIELD CONDITIONS. - - -�- cam"_- I---- --J��_ �- I \ I - -� -- DRIVEWAY -Ww -� - - -- I NOTES 1. When the driveway width exceeds 15 feet, construct a full depth expansion joint (see Standard Plan F -3) with 3/8' joint filler along the driveway centerline. 2. Construct expansion pints parallel with the centerline as required of 15' maximum spacing when driveway widths exceed 30'. See Std. Plan F -3 for sidewalk details. 3. Curb and gutter shown, see the Contract. Plans for the curb design specified. See Std. Plan F -1 for curb details. 4. Avoid placing drainage structures, junction boxes or other obstructions in front of driveway entrances. 5. When driveway approaches are constructed in a commercial zone, the concrete driveway entrance shall be thickened from 6 inches to 10 inches. This includes concrete approach Types 1 -4, sidewalks constructed behind the driveway apron, and the curb and gutter associated with each driveway approach. 6. Sidewalks at driveway approaches and driveway apron to be 6' min. depth of carrots. DRIVEWAY Y (BY OTHERS) CEMENT CONCRETE SIDEWALK WHERE SHOWN Z pp , \ IMPERVIOUS AREA Z TOWARDS PERFOF7 €0�� o I -- -PIPE CONNECTION (TYP.) - it CD U LUOf I 500 FEI f OF IMPESQ. RVIQ�US AREA \ DOWNSPOUT IL a TO EACH TRENCH (TYP.) \ \V (TYP,) J O I n4 ow 1 5' 1 i Ln In � I 2 EACH/ 37.5' GRAVEL FILLED TRENCH PER DETAIL LEFT TYPICAL HOUSE BMP PLAN CRAWL SPACE ELEVATION TO BE ABOVE OVERFLOW ELEVATION OF TRENCH IMPERVIOUS MITIGATION: (A) 1,000 SQ. FEET TO BE CONVEYED TO GRAVEL FILLED TRENCHES; (B) BALANCE OF HOUSE /PAITO /PORCH TO BE CONVEYED TO PERFORATED PIPE CONNECTION TO STORM SYSTEM; (C) PRIVATE ROAD MITIGATION PROVIDED AS PART OF SHORT PLAT IMRPOVEMENTS OFFE ENGINEERS tiL• L••D� �;'�N MIISi/y,�:nY SITES URVEY &MAPPING sevc Iasa�ir•aw:r ones@ s�wh qm: oy.� SCALE il, CITY OF 13932 SOUTHEAST 159TH PLACE D.L. OFFS, P.E. RENTON pR eJL RENTON, WASHINGTON 98058 DATUM z74ao D.L. OFFE, P.E. p,E naf PHONE: 425- 260 -3412 ��o'GygTER6��• Planning /Building /Public Works Dept. CONTACT: DARRELL OFFE, P.E. SS %pNAL'•EN N0. REVISION BY DATE APPR ""rte ac.c e°`A'"ea`y 12/19/2013 y ,?I- �apSrvY CEM. CONC. CURB & GUTTER (SEE NOTE 3) DRIVEWAY ENTRANCE SIDE SLOPE (TYP.) DEPRESSED C\O5'(�QF. CURB EE NOTE 3T',ER SIDEWALK & DRIVEWAY APRON \ (SEE NOTE 6) CEMENT CONCRETE DRIVEWAY N.T.S. R- 311005 C2.I1 PERFORATED PIPE CO.NNECOON O TEXT OF INSTRUCTIONS Your property wnlains a stwmwater management flow annual BMP (best management practical celled a 'pedorimm pipe cannectbn," whlch was in� to reduce The stormwater mroff impacts of some ar all d the impervious sudam on your properly. A parlorsted pipe oomecaon Is a length of drainage conveyance Pipe with holes In the bottom, designed to' leak' runoff. conveyed! "a pigs into a gravel filed bench where itcom be soaked Into the surrounding ads. The wrmeo4an is mended w provksa opWnurity fw lithratlon of any runoff that Is being conveyed from an impervious surface (usually a roof W a local drain s tern such as a dutch or s stem. age Ys roadway pipe Y The size and wmposi6an of the pmonded pipe mnancxxi as depickd by the flow control BMP site plan aral design delalis must be maintained and may not be changed without written approval enter from ire King County Water and Land Resources Division or trough a future development permit from King County. The roll overtop of the perforated "an of to symorn must rot be compacted or covered wit impervious matedais. FIGLREC.2.ILA PERFORATED, PIPE. CONNECTION FOR A SINGLE FAARLY RESIDENCE ' random fill filler fabric v, 6' Pod Pips to min 0- 1 4i -Irl m washedrk nova I1t'aa °i vG�:. °ec p M- 24' ni TRENCH X- SECTION NTS slope to mad drainage system 2'X 10' level bench Vdped pipe PLAN VIEW OF VIEW OF ROOF NTS 2009SCdxe Wen rvt,o Manual- Appatlix C cs1 PERFORATED PIPE CONNECTION NE 7TH NORTH SHORT PLAT KRRV DEVELOPMENT, LLC DETAILS 3506 NE 7th STREET C�= 02'3��aos DQ 10/20/201 5 ° 1111 11L-Is y z wz 00 � �x MID y W r O