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HomeMy WebLinkAboutTED4003207.3STORM WATER DRAINAGE NOTES 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING MUST BE HELD WITH THE CITY OF RENTON DEVELOPMENT SERVICES DIVISION, PLAN REVIEW PROJECT MANAGER. 2. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE LATEST EDITION OF THE "STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION" PREPARED BY W.S.D.O.T. AND THE AMERICAN PUBLIC WORKS ASSOCIATION (APWA), AS AMENDED BY THE CITY OF RENTON. 3. THE STORM DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED PLANS WHICH ARE ON FILE WITH THE CITY OF RENTON. ANY DEVIATION FROM THE APPROVED PLANS WILL REQUIRE WRITTEN APPROVAL FROM THE CITY OF RENTON DEVELOPMENT SERVICES DIVISION. 4. A COPY OF THESE APPROVED PLANS MOST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. TLfM SHALL BE U.S.G.S. UNLESS OTHERWISE APPROVED BY THE 5. DA CITY OF RENTON. REFERENCE BENCHMARK AND ELEVATION ARE NOTED ON THE PLANS. 6. ALL SEDIMENTATION/ EROSION CONTROL 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 DEVELOPMENT SERVICES DIVISION. 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 DEVELOPMENT SERVICES DIVISION. 9. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION IN ACCORDANCE WITH SECTION 7-02.3(1) OF THE CURRENT STATE OF WASHINGTON STANDARD SPECIFICATIONS 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 A MINIMUM 95% FOR PAVEMENT AND i STRUCTURAL FILL AND 90% OTHERWISE PER ASTM D-1557-70. PEA GRAVEL BEDDING SHALL BE 6" OVER AND UNDER PVC PIPE. GALVANIZED STEEL PIPE AND ALUMINIZ ED STEEL PIPE FOR ALL DRAINAGE FACILITIES SHALL BE 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. ALL CA � C -i BASIN GRATES SHALL BE DEPRESSED 0.10 FEET BELOW PAVEMENT LEVEL. 13. OPEN CUT ROAD CROSSINGS THROUGH EXISTING PUBLIC RIGHT-OF- WAY WILL NOT BE ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY OF RENTON. 14. ROCK OR EROSION PROTECTION OF ROADSIDE DITCHES, WHERE REQUIRED, SHALL BE OF SOUND QUARRY ROCK PLACED TO A DEPTH OF1 FOOT AND MUST MEET THE FOLLOWING SPECIFICATIONS: 4" -8 /40 /T-70 /o PASSING, 2I-4 ROCK/30 /0-40 /o PASSING; AND 2 ROCK /40%-20% PASSING. 15. ALL BUILDING DOWNSPOUTS AND FOOTING DRAINS SHALL BE CONNECTED TO THE STORM DRAINAGE SYSTEM, UNLESS APPROVED BY THE DEVELOPMENT SERVICES DIVISION. 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. FURTIIER, THE CITY OF RENTON DOES NOT ACCEPT ANY OBLIGATION FOR TI IE 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 LIFE, 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 T RANSPORTATION DIVISION. ALL SECTIONS OF THE W.S.D.O.T. STANDARD SPECIFICATIONS 1-07-23, TRAFFIC CONTROL_, SHALL APPLY. ORf Dll E HONEY CREEK BUFFER SETBACK LINE INSTALL 4' SPLIT RAIL FENCE ALONG THIS SETBACK SEE DETAIL SD-5 FOR FENCE NEW DOWNSPOUT DIVE TRENCH (4 PLACES) EACH TRENCH T WIDE x SEE DETAIL SDA. CONNECT TO DOWNSPC PVC W/ MIN 12" COVER TOP OF STEEP SLOPE — 1, 1 rr 1 SECTION A_A NO SCALE 111t_t_1 VVII II VLC/iIV GRAVELPAD BIO-SWAT E BOTTOM AND SIDES TO BE FSEEDED WITH: 75-80% TALL FESCUE, 10-15% COLONIAL FIENTGRASS, 5-10% REDTOP SLOPE OF SWALE BOT TOM / 1-0 BE 0.5% - 1.0% DETAIL SD-6 BIO-SWALE DETAIL NO SCALE - -J s\` OUTLET WITH CLEAN GRAVEL PAD ✓EL OUT[ I I -- b. j 24'' MIN---- �� DETAIL SD-4 DISPE ZSI' )N TRENCH CROSS SECTION SCALP NnNF AS BUIL kFCOMMENDED STORMWATER DRAINAGE PLAN 1,()I? APPROVAI_ SCALE: I ., = 20' 1 1 l /� A ,d I... ry s� i FOUND MON.:N CASE, 4"x4" CONCRETE W;1 :.14" PUNCHED `cli ! BRASS DISK A f INTERSECTION OF I UNION AVE NE AN8 NE 21ST S T �n CD S� I CITY OF RENTON CONTROL NO. 716 FOUND MON. IN CASE, 4"x4" CONCRETE W/1" PUNCHED BRASS DISK AT INTERSECTION OF UNION ! AVE NE AN8 NE 19"' ST, 0.19' EAST OF SECTION LINE I ; I I I in i I i I I I i 8 SS "1 NEW WET TAP — 12" x 6" PROVIDED BY CITY DATE oy DATE DATE DATE-_ CALL 48 HOURS BEFORE YOU DIG DATE 1-800-424-5555 EXST 6" ' HYDRANT EXISTING CB (TYPE 2) I E = 386.28 (N) IE = 383.78 (S) TIE IN NEW SD IE- 384.1Cc i i i i NEWCB STA O +3Z AB'S RIM 389,41 Irc 384.81(W) 1E 384.76 (N ) i 1 I 1 i i I I I i i CITY OF RENTON CONTROL NO. 894 FOUND MON. IN CASE, 4"x4" CONCRETE W/1-1/2" PUNCHED BRASS DISK AT INTERSECTION OF UNION AVE NE 8 NE SUNSET BLVD, 0 03' EAST OF SECTION LINE FOUND MON. 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