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Home My WebLink AboutR-392309N 0) CM I 0 W I- n w z z u Q LLJO LL 0 H O w Q Q J J i -LW- Cu C i) cm m G� 4� EP aau 00 (30 v31 -cu am) II -00 van cu Li LcLn C�D /i utn czD CID Q� ILL: CITY OF RENTON EROSION AND SEDIMENT CONTROL NOTES 1. CLEARING LIMITS: A. PRIOR TO ANY SITE CLEARING OR GRADING, AREAS TO REMAIN UNDISTURBED DURING PROJECT CONSTRUCTION SHALL BE DELINEATED. AT A MINIMUM, CLEARING LIMIT DELINEATION FLAGGING SHALL BE PROVIDED AT THE EDGES OF ALL SENSITIVE AREA BUFFERS. 2. KEEP THE GROUND COVERED - A. MINIMIZE THE AMOUNT OF EXISTING VEGETATION THAT YOU MUST DISTURB FOR CONSTRUCTION. KEEP OFF SENSITIVE AREAS AND THEIR BUFFERS. B. ALL DISTURBED AREAS SHALL BE COVERED AND/OR MULCHED WITHIN 12 HOURS, IF THEY ARE TO REMAIN UNWORKED FOR MORE THAN 7 DAYS FROM MAY 1ST TO SEPTEMBER 30TH. DURING THE MONTHS OF OCTOBER 1ST THROUGH APRIL 30TH, DISTURBED AREAS MUST BE COVERED OR MULCHED IF LEFT UNWORKED WITHIN 2 DAYS C. ACCEPTED MULCH MATERIAL INCLUDES STRAW, WOOD FIBER AND CELLULOSE. D. AREAS NOT BEING WORKED FOR 30 DAYS OR MORE SHALL BE VEGETATED, UNLESS THE CITY DETERMINES THAT WINTER WEATHER MAKES VEGETATION ESTABLISHMENT INFEASIBLE. IF THIS IS THE CASE, IT MUST STILL BE MORE PERMANENTLY STABILIZED, USING METHODS SUCH AS BONDED FIBER MATRIX OR OTHER MORE STABLE BMP'S. E. SLOPES AND STOCKPILES 3H:1V OR STEEPER AND MORE THAN 10 FEET OF VERTICAL RELIEF SHALL BE COVERED IF THEY ARE UNWORKED FOR MORE THAN 12 HOURS. F. ALL AREAS NOT BEING WORKED PRIOR TO OCTOBER 1, AND ARE BEING SEEDED, SHALL BE SEEDED BY SEPTEMBER 23. MULCHING IS REQUIRED TO PROTECT ALL SEEDED AREAS UNTIL AN ADEQUATE GROWTH IS ESTABLISHED. G. AREAS THAT ARE BEING HYDRO SEEDED SHALL HAVE A TACKIFIER MIXED INTO THE HYDRO SEED TO HELP STABILIZE MIXTURE ONTO THE SOIL. H. ENOUGH COVER MATERIAL TO SUFFICIENTLY PROTECT ALL DISTURBED AREAS SHALL BE STOCKPILED ON THE SITE AT THE BEGINNING OF THE WET SEASON. 3. DUST CONTROL: A. DUST IS TO BE CONTROLLED ON THE CONSTRUCTION SITE. B. WATER TRUCK WILL BE USED TO CONTROL DUST ON DIRT/GRADED AREAS ONLY. C. NO SITE RUN OFF IS TO BE GENERATED BY OVER USE OF WATERING. D. CONTROLLING DUST ON PAVED ROADWAYS WILL BE DONE BY THE USE OF A SWEEPER WITH WATER -JET SPRAYERS. NO RUN OFF FROM SPRAYERS SHALL REACH THE CATCH BASINS. 4. PERIMETER PROTECTION: A. PERIMETER PROTECTION TO FILTER SEDIMENT FOR SHEETWASH SHALL BE LOCATED DOWNSLOPE OF ALL DISTURBED AREAS AND PROPERLY INSTALLED PRIOR TO UPSLOPE GRADING. B. 50 LINEAR FEET OF SILT FENCE PER ACRE AND THE NECESSARY STAKES TO HOLD THE FENCE IN PLACE SHALL BE STORED ON SITE. (CONTINUED) EROSION AND SEDIMENT CONTROL NOTES 5. TRAFFIC AREA STABILIZATION: A. UNSURFACED DRIVEWAY ENTRANCES, ACCESS ROADS AND PARKING AREAS USED BY CONSTRUCTION TRAFFIC WILL BE STABILIZED TO MINIMIZE EROSION AND PREVENT TRACKING MUD. B. STABILIZED CONSTRUCTION ENTRANCES WILL BE INSTALLED AS THE FIRST STEP OF CLEARING AND GRADING. C. CONSTRUCTION ENTRANCES WILL BE SET UP SO THAT ALL TRAFFIC LEAVING A JOB SITE IS REQUIRED TO TRAVEL THE ENTIRE LENGTH OF ENTRANCE. D. ROADS AND PARKING AREAS WILL BE STABILIZED IMMEDIATELY AFTER THE INITIAL GRADING. E. CONSTRUCTION ENTRANCES WILL BE STABILIZED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AND TRAVELING ON PAVED ROADS OR OTHER PAVED AREAS WITHIN 1,000 FEET OF THE SITE. F. ANY SEDIMENT THAT IS TRACKED ONTO PAVEMENT WILL BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE REMOVED OR STABILIZED ON -SITE. G. IF NON-VACTOR TYPE SWEEPERS ARE USED, THE DEPOSITION OF THESE SWEEPERS MUST BE REMOVED FROM SIDEWALKS AND GUTTERS. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE REMOVED OR STABILIZED ON -SITE. H. THE PAVEMENT SHALL NOT BE CLEANED BY WASHING STREETS. 6. SEDIMENT RETENTION: A. SEDIMENT RETENTION IS REQUIRED UNLESS NO OFF -SITE DISCHARGE IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW. B. SEDIMENT RETENTION FACILITIES WILL BE INSTALLED BEFORE GRADING. C. IF SEDIMENT RETENTION FACILITIES NEED TO BE REMOVED FOR GRADING, ADDITIONAL PONDS/TRAPS/SYSTEMS TO ACCOMMODATE STORAGE CAPACITY NEED TO BE INSTALLED ON SITE. THIS WILL BE DONE PRIOR TO REMOVAL OF EXISTING FACILITY. 7. SURFACE WATER CONTROL: A. SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFF -SITE DISCHARGE IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW. 8. SENSITIVE AREA RESTRICTIONS: A. PHASING AND MORE CONSERVATIVE BEST MANAGEMENT PRACTICES (BMP'S) MUST BE EVALUATED FOR CONSTRUCTION ACTIVITIES NEAR SURFACE WATERS.. 9. MAINTENANCE REQUIREMENTS: A. LARGE PROJECTS WITHIN SENSITIVE AREAS MAY BE REQUIRED BY THE CITY TO HAVE A DESIGNATED ESC SUPERVISOR WHO WILL BE RESPONSIBLE FOR ESC REVIEW, MAINTENANCE AND COMPLIANCE. B. ESC WILL BE INSPECTED A MINIMUM OF ONCE A WEEK DURING THE WET SEASON AND WITHIN 24 HOURS OF SIGNIFICANT STORMS (.5 INCHES/24 HOUR, OR WHERE RUN-OFF IS GENERATED). C. THE ESC SUPERVISOR MUST BE AVAILABLE, 24 HOURS, FOR RAPID RESPONSE TO ESC PROBLEMS AND EMERGENCIES. D. A 24-HOUR PHONE NUMBER FOR THE ESC SUPERVISOR WILL BE POSTED IN A CLEARLY VISIBLE LOCATION ON THE PROJECT SITE. ASBUILT TES[ NOTES AND DETAILS FOR ALL UlM AT TIFFANY PARK PTN OF THE W1/2 & SE1/4 OF THE SE1/4 AND PTN OF THE NE1/4, OF THE SW1/4 OF SEC. 21, TWP. 23 N., RGE 5 EAST, W. M. CITY OF RENTON KING COUNTY STATE OF WASHINGTON 10. FINAL STABILIZATION: PRIOR TO FINAL CONSTRUCTION APPROVAL, THE FOLLOWING CONDITIONS MUST BE MET: A. ALL DISTURBED AREAS OF THE SITE WILL BE VEGETATED OR OTHERWISE PERMANENTLY STABILIZED; B. STRUCTURAL MEASURES SUCH AS SILT FENCE, SLOPE DRAINS, ETC. WILL BE REMOVED FROM SITE; C. ALL PERMANENT SURFACE WATER FACILITIES INCLUDING CATCH BASINS, PIPES, ETC. WILL BE CLEANED; D. ANY OFF -SITE CATCH BASINS THAT REQUIRED PROTECTION WILL ALSO BE CLEANED; AND E. IF ONLY THE INFRASTRUCTURE OF THE SITE HAS BEEN DEVELOPED SUCH AS SHORT PLATS AND SUBDIVISIONS, WITH BUILDING CONSTRUCTION TO OCCUR UNDER A DIFFERENT PERMIT, THEN THE SENSITIVE AREA BUFFERS, TRACTS, AND SETBACKS WILL BE CLEARLY MARKED. CITY OF RENTON, DEVELOPMENT SERVICES STAFF IS AVAILABLE TO ANSWER ANY QUESTIONS YOU MAY HAVE ABOUT EROSION AND SEDIMENT CONTROL AND WET SEASON STABILIZATION MEASURES FOR PERMITTED ACTIVITIES IN THE CITY OF RENTON. PLEASE CALL 425-430-7300. TEMPORARY EROSION CONTROL SEED MIX MATERIAL % WEIGHT % PURITY % GERMINATION CHEWINGS OR RED FESCUE 40 98 90 FESTUCA RUBRA VAR. COMMUTATA OR FESTUCA RUBRA ANNUAL OR PERENNIAL RYE 40 98 90 LOLIUM MULTIFLORUM OR LOLIUM PERENNE REDTOP OR COLONIAL BENTGRASS 10 92 85 AGROSTIS ALBA OR AGROSTIS TENUIS WHITE DUTCH CLOVER 10 98 90 TRIFOLIUM REPENS BEST MANAGEMENT PRACTICES (BMP) ALTERNATIVES MULCH MATEFpAL OUALIIY APPLICATION APPLICATION DEPTH OF $ STANDARDS /VW SF /ACM APPLICATION GRAVEL, SLAG, OR WASHED, 3/4"-1-1/2' 9 CU YDS 3 INCHES FOR SHORT SLOPES AND AROUND WOODY PLANTS & ORNAMENTALS CRUSHED STONE SIZE USE WHERE SUBJECT TO FOOT TRAFIC. APPDX. 2000 LBS/CU YD. AIR DRIED, FREE FROM 75- I OOLBS OR 1-1/2 TO 2-1/2 MINIMUM OF 2 IN USE WHERE THE MULCHING EFFECT IS TO BE MAINTAINED FOR LESS HAY OR STRAW UNWANTED SEEDS & 2-3 BALES TONS OR 90-120 DEPTH, GREATER ON THAN 3 MONTHS. ANCHOR BY CRIMPING, COVERING WITH NETTING COARSE MATERIAL BALES STEEP AREAS OR NEAR SPRAYING WITH TACKIFIER AND/OR KEPT MOIST. PROTECTED AREAS) PLASTIC SHEETING MINIMUM 6-MIL ANCHOR WITH SANDBAGS OR TIRES ON 10-FOOT GRID IN ALL THICKNESS DIRECTIONS. OVERLAP EDGES. JUTE MAT, WOVEN N/A N/A USE ON STEEP SLOPES GREATER THAN 2:1 IN ADDITION STRAW BLANKET TO HYDROSEED OR WOOD FIBER WITH TACKIFIER. SYNTHETIC FIBER BLANKET WOOD FIBER DYED GREEN SHOULD 25-30 LBS. 1000-1500LBS IF USED ON CRITICAL AREAS, OR STEEP SLOPES, DOUBLE THE CELLULOSE (PARTIALLY NOT CONTAIN GROWTH NORMAL APPLICATION RATE. APPLY W/HYDROMULCHER. NO DIGESTED WOOD INHIBITING FACTORS TIE -DOWN REQUIRED. FIBERS) WOOD FIBER APPLIED 1.25 TONS PER USE 90 GAL/ACRE TACKIFIER FOR STEEP SLOPES LESS THAN WITH HYDROSEEDING ACRE; 2:1; 120 GAL/ACRE FOR STEEPER THAN 2:1 OR ALONE BARK CHIPS MIN. OF 2 IN. DEPTH DO NOT USE ON SLOPES STEEPER THAN 6% WOOD CHIPS TREAT WITH 12LBS INITOGEN MIN. OF 2 IN. DEPTH DO NOT USE ON SLOPES STEEPER THAN 15% (HOG FUEL) FERTILIZER/TON HYDROSEED IUSE MIX RECOMMENDED I I I I USE DOT SLOPE MIX FOR STEEP SLOPES. INSTALL[ S A ROAL PER CITY RIVEWAYS SHALL BE PAVED TO THE EDGE F R-O-W PRIOR TO INSTALLATION OF THE ONSTRUCTION ENTRANCE TO AVOID AMAGING OF THE ROADWAY r IS RECOMMENDED THAT THE INTRANCE BE CROWNED SO THAT ;UNOFF DRAINS OFF THE PAD PROVIDE FULL WIDTH OF NOTES INGRESSIEGRESSAREA 1. CONDITION OF USE 1.1 CONSTRUCTION ENTRANCE SHALL BE STABILIZED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AND TRAVELING ON PAVED ROADS OR OTHER PAVED AREAS WITHIN 1,000 FEET OF THE SITE. GRAB TENSILE STREBNGTH (ASTM D4751) 200 PSI MIN. GRAB TENSILE ELONGATION (ASTM D4632) 30%MAX. MULLEN BURST STRENGTH (ASTM D3786-80A) 400 PSI MIN. AOS (ASTM D4751) 20-45 (U.S. STANDARD SIEVE SIZE) 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. HOG FUEL (WOOD BASED MULCH) MAY BE SUBSTITUTED FOR OR COMBINED WITH QUARRY SPALLS IN ARES THAT WILL BOT BE USED FOR PERMANENT ROADS. HOG FUEL IS NOT RECOMMENDED FOR ENTRANCE STABILIZATION IN URBAN AREAS. THE INSPECTOR MAY AT ANY TIME REQUIRE THE USE OF QUARRY SPALLS IF THE HOG FUEL IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT OR IF THE HOG FUEL IS BEING CARRIED ONTO PAVEMENT. 2.2. FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE. 2.3. WHENEVER POSSIBLE, THE ENTRANCE SHALL BE CONSTRUCTED ON A FIRM, COMPACTED SUBGRADE, THIS CAN SUBSTANTIALLY INCREASE THE EFFECTIVENESS OF THE PAD AND REDUCE THE NEED FOR MAINTENANCE. 3. MAINTENANCE STANDARDS 3.1. QUARRY SPALLS SHALL BE ADDED IF THE PAD IS NO LONGER IN ACCORDANCE WITH THE SPECIFICATIONS. 3.2. IF THE ENTRANCE IS NOT PREVENTING SEDIMENT BEING TRACKED ONTO PAVEMENT THEN ALTERNATIVE MEASURES TO KEEP THE STREETS FREE OF SEDIMENT SHALL BE USED. THIS MAY INCLUDE STREET SWEEPING, AN INCREASE IN THE DIMENSIONS OF THE ENTRANCE, OR THE INSTALLATION OF THE WHEEL WASH. IF WASHING IS USED, IT SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK, AND WASHED WATER SHALL DRAIN TO A SEDIMENT TRAP OR POND. 3.3. ANY SEDIMENT THAT IS TRACKED ONTO PAVEMENT SHALL BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE REMOVED OR STABILIZED ON SITE. THE PAVEMENT SHALL NOT BE CLEANED BY WASHING DOWN THE STREET, EXCEPT WHEN SWEEPING IS INEFFECTIVE AND THERE IS A THREAT TO PUBLIC SAFETY. IF IT NECESSARY TO WASH THE STREETS, A SMALL SUMP MUST BE CONDUCTED. THE SEDIMENT WOULD THEN BE WASHED INTO THE SUMP WHERE IT CAN BE CONTROLLED AND DISCHARGED APPROPRIATELY. 3.4. ANY QUARRY SPALLS THAT ARE LOOSENED FROM THE PAD AND END UP ON THE ROADWAY SHALL BE REMOVED IMMEDIATELY. 3.5. IF VEHICLES ARE ENTERING OR EXITING THE SITES AT POINTS OTHER THAN THE CONSTRUCTION ENTRANCE(S), FENCING SHALL BE INSTALLED TO CONTROL TRAFFIC. Y o STD. PLAN — 215.10 a► PUBLIC WORKS STABILIZED DEPARTMENT CONSTRUCTION ENTRANCE MARCH 2008 2 REVISED PER CITY COMMENT 1 ASBUILT NO. REVISION SURVEYED: BCE DESIGNED: BJT BK '11/20/18 BJT DRAWN: RAG BK 11/2/18 BJT CHECKED: RAG BY DATE APPR APPROVED: BJT SCALE: N.T.S. ONE INCH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY STEEL FENCE POST 6' HIGH MIN. NOTE: 1: CLIP FENCE TO GALVANIZED WIRE @ 5 FOOT ON -CENTER SPACING 2. WIRE FENCE TO STEEL FENCE POST TEMPORARY N.G.P.E. FENCE DETAIL NOT TO SCALE JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, OR EOIIIVAI_ENT TO ATTACH FABRIC TO POSTS_ 2"x2" BY 14 Ga. WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC z E N 6' MAX. MINIMUM Vx4" TRENCH LBACKFILL TRENCH WITH POST SPACING MAY BE INCREASED NATIVE SOIL TO 8' IF WIRE BACKING IS USED 2"x4" WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT NOTES 1. CONDITION OF USE 1.1. SILT FENCE MAY BE USED DOWNSLOPE OF ALL DISTURBED AREAS. 1.2. SILT FENCE IS NOT INTENDED TO TREAT CONCENTRATED FLOWS, NOR IS INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FLOW. ANY CONCENTRATED FLOW MOST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. THE GEOTEXTILE USED MOST MET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MOST BE AVAILABLE ON SITE. 30-1D0 SIEVE SIZE (0.60-0.15MM) FOR SI LT FILM A05 (ASTM D4751) 50-100 SIEV E SIZE (0.30-0.15MM) FOR OTHER FABRICS WATER PERMITTIVITY (ASTM D491) 0.02 SEC^-1 MINIMUM GRAB TENSILE STRENCHT (ASTM D4632) 180 LBS. MIN, FOR EXTRA STRENGH FABRIC 100 LBS. MIN. FOR STANDARD STRENGHT FABRIC GRAB TENSILE ELONGATION (ASTM D4632) 30 % MAX. ULTRAV IO LATE R ES ISTA NCE(ASTM D4355) 70%MIN. 2.2. STANDARD STRENGTH FABRIC REQUIRES WIRE BACKING TO INCREASE THE STRENGTH OF THE FENCE. WIRE BACKING OR CLOSER POST SPACING MAY BE REQUIRED FOR EXTRA STRENGTH FABRIC IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE. 2.3. WHERE THE FENCE IS INSTALLED, THE SLOPE SHALL NOT BE STEEPER THAN 2H:1V 2.4. IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4X4 TRENCH MAY NOT BE REDUCED AS LONG AS THE BOTTOM 8 INCHES OF THE SILT FENCE IS WELL BURIED AND SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT FENCE. 3. MAINTENANCE STANDARDS 3.1. ANY DAMAGE SHALL BE REPAIR IMMEDIATELY. 3.2. IF CONCENTRATED FLOES ARE EVIDENT UPHILL OD THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POND. 3.3. IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING AND ACTING AS A BARRIER TO FLOW AND THEN CAUSING CHANNELIZATION OF FLOWS PARALLEL TO THE FENCE. IF THIS OCCURS, REPLACE THE FENCE OR REMOVED THE TRAP SEDIMENT. 3.4. SEDIMENT MOST BE REMOVED WHEN SEDIMENT IS 6 INCHES HIGH. 3.5. IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED. u*IV)w. STD. PLAN214.00 PUBLIC WORKS SILT FENCEDEPARTMENT MARCH 2O08 VERTICAL: NAVD 1988 HORIZONTAL: NAD 1983/1991 DATUM CITY OF IN RENTON Planning/Building/Public Works Dept. CITY OF RENTON EDEPARTMENT OF PUBLIC WORKS APPROVED BY APPROVED BY APPROVED BY APPROVED BY 'f' �4 1„4� O �� FS �� l' S I S14NA L 111201Z0 1 2 O UO LLJ x � Q Z LL_ LLJ a Q rj N N 000 N � 0 z p� c0 00 N Q I I Ln Ln L(7 L(7 00 LLJ N Z N N (N . W C� U Z j z� ZW Q N J J o_ Q o~ ZZ Q Li.l J m z O Z > �z L L.I W LuI z(.5 0z w w J � U (N J 2 Q 0 z DATE W DATE V� A` DATE b� o coy'5 DATE TESC NOTES AND DETAILS D i 1 /20/2018 ASBUILT - ALLURA AT TIFFANY PARK FIELD60OK: PAGE: MAINVUE WA, LLC DRAWING N0: 1110112TH AVE NE, SUITE 202 BELLEVUE, WA 98004 SHEET: 9 OF:68 vI mmmmmmmm