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Home My WebLink AboutR-431508L0 TM I O I r) W nJ n rr O r2 V / O W 2 n rO v LL; Li L� JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS. OR EQUIVALENT TO ATTACH FABRIC TO POSTS 2"x2' 14 GAUGE WIRE, OR EQUIVALENT, IF STANDARD STRENGTH FABRIC U5EQ FILTER FABRIC — $' MAT{. I I 12" lAlfti. PQST SPACING MAY RE kNGREA$ED 4'7e4' MIN. TRENCH TO 13' IF WIRE BACKING 15 USED I I I BACKFILL TRENCH WITH NATIVE SOIL L F OR 3A" TO F-VT WASHED GRAVEL 2'x4" WOOD POSTS. STEEL FENCE POSTS, OR EQUIVALENT (TYP.) NOTES: 1_ CONDITIONSOFUSE 1.1. SILT FENCE MAY BE USED DOWNSLOPE OF ALL DISTURBED AREAS. 1.2. SLT FENCE IS NOT INTENDED TO TREAT CONCENTRATED FLOWS, NOR IS IT INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FLOW_ ANY CONCENTRATED FLOW MUST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. THE GEOTEXTILE USED MUST MEET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MUST BE AVAILABLE ON SITE. AOS {ASTM D4751 } 34 tW S IEVE SIZE {U.¢D-q.15MM) FOR SILT FILM 5C, 00 SIEVE SIZE {G,34.4,15mmj FOR OTHER FABRICS WATER PERM ITTIVF Y {ASTM D4491 } 0_D2 SEC, MINEMUM GRAB TENSILE STRENGTH (ASTM 64632} 180 LBS. MIN. FOR EXTRA STRENGTH FABRIC 100 LBS. MIN. FOR STANDARD STIR ENGTH FABRIC GRAB TENSILE ELONGATION (ASTM ❑02IZ) 30%MAX. (WOVEN) ULTRAVIOLET RESISTANCE{ASTM D4355R 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:1 V 2.4_ IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4"X4" YRENCH MAY BE REDUCED AS LONG AS THE BOTTOM 0 INCHES OF THE SILT FENCE FABRIC IS WELL BURIED AND SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT FENCE. 2.5. FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOURS WHENEVER POSSIBLE. 3_ MAINTENANCE STANDARDS 3.1_ ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY_ 3.2_ IF G04CENTRATED FLOWS ARE EVIDENT UPHILL OF 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 CHANNELIZA710M OF FLOWS PARALLEL TO THE FENCE. IF THIS OCCURS, REPLACE THE FENCE OR REMOVE THE TRAPPED SEDIMENT. 3.4. SEDIMENT MUST 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. UNLESS QTHERW15F NOTED, DRAWLNG IS NOT TQ %CALI [NTSI STD, PLAN - 214.00 o PUBLIC WORKS SILT FENCE PR 9/29/2018 1 DEPARTMENT GAZ Futlk wona mmn�xuur DATE LEVEL BOTTOM 2- MIN. -� SWALE SPACING DEPENDS ON SLOPE GRADIENT 2 2 MAX. MAX. 1 �F N OTES: 1, CONDITIONS OF USE 1.1. REQUIRED AT- 1.1.1. THE TOP OF ALL SLOPES IN EXCESS OF 3HA V AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF. 1.1.2. AT INTERVALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFRED BELOW. AVERAGE SLOPE SLOPE PERCENT FLOW PATH LENGTH 2fllh:1 V (OR LESS) 3-5% 390 FEET (10 TO 24)H:1V 5-M 2K FEET (A TO IO)H:1 V 1¢25% 100 FEET 12 TO4)H-1V 25-5D% 50 FEET 7. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. FOR SLOPE$ STEEPER THAN 2HAV WITH MQRE THAN 10 FEET OF VERTICAL RELIEF, BENCHES MAY SB QQN$TRUCTFD OR CL09€R $PAGED INTERCEPTOR SWALES MAY BE USED. THE DESIRED MEASURE MUST BE DESIGNED BY AN ENGINEER TO EFFECTIVELY INTERCEPT THE HIGH VELOCITY RUNOFF TO A SEDIMENT POND OR TRAP. 2.2. CONSTRUCTION TRAFFIC OVER TEMPORARY SWALES SHALL BE MINIMIZED. 3. MAINTENANCE STANDARDS 3.1. DAMAGE RESULTING FROM RUNOFF OR CONSTRUCTION ACTIVITY SHALL BE REPAIRED IMMEDIATELY. 3.2. IF THE FACILITIES DO NOT REGULARLY RETAIN STORM RUNOFF, THE CAPACITY ANO[OR FREQUENCY OF THE SWALES SHALL BE INCREASED. UNLESS OTHERWISE NOTED, DRAWING 7S NOt TO SCALE (NTSI AonSTD. PLAN - 2 17. 10 URUDEPARTMENT GAZ . lk PUBLIC WORKS INTERCEPTOR SWALE PPR 0 9/28/2018 1 Nugv r- wodn admnre— DATE Call 2 Working Days Before You Dig 811 Utilities Underground Location Center (ID,MT,ND,OR,WA) ® 2001 32nd Avenue ENGINEERS L L C ue South Suite 200 Federal Way, WA 98001 FEDERAL WAY (253) 838-6113 www.esmcivil.com LYNNWOOD (425) 297-9900 Civil Engineering Land Surveying Land Planning Public Works I Project Management I Landscape Architecture ESM JOB #41 1-004-023 F7Lti'�L� RQf� R e 2T MIN. - INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT, AS PER CITY ROAD STANDARDS 4"•6' QUARRY SPALLS GEOTEXTILE 12" MIN_ THICKNESS 100' MIN. CONSTRUCTION ENTRANCE NOTES: I_ DRIVEWAYS SHALL BE PAVED TO THE EDGE OF THE RIGHT-OF-WAY PRIOR TO INSTALLATION OF THE CONSTRUCTION ENTRANCE TO AVOID DAMAGING OF THE ROADWAY. 2. IT IS RECOMMENDED THAT THE ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD 15, MIN. PROVIDE FULL WIDTH OF RNGRESSIEGRESS AREA NOTES: 1. CONDITION OF USE 1.1. CONSTRUCTION ENTRANCE SHALL BE STABILIZED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AMC) TRAVELING ON PAVED ROADS OR OTHER PAVED AREAS WITH IN 1,000 FEET OF THE SITE. 1 2. FOR RESIDENTIAL CONSTRUCTION PROVIDE STABILIZED CONSTRUCTION ENTRA+ICES FOR EACH RESIDENCE IN AOD17ION TO THE MAIN SUBDIVISION ENTRANCE. STABILIZED SURFACES SHALL BE OF SUFFICIENT LENGT"IDTH TO PROVIDE VEHICLE ACCESSIPARKING, BASED ON LOT SIZeCONFIGURATION. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. A SEPARATION GEOTEXTILE SHALL BE PLACED UNDER THE SPALLS TO PREVENT FINE SEDIMENT FROM PUMPING UP INTO THE ROCK PAD. THE GEOTEXTILE SHALL MEET THE FOLLOWING STANDARDS: GRAB TENSILE STRENGTH (ASTM D4632) 200 LBS. MIN. GRAB TENSILE ELONGATION (ASTM D4632) 30% MAX. (WOVEN} CBR PUNCTURE STRENGTH (ASTM D6241) 495 LBS- MIN_ AOS (ASTM 04751) 20-45 (U.S. STANDARD SIEVE SIZE) 2.2 DO NOT USE CRUSHED CONCRETE, CEMENT, OR CALCIUM CHLORIDE FOR CONSTRUCTION ENTRANCE STABILIZATION BECAUSE THESE PRODUCTS RAISE pH LEVELS IN STORMWATER AND CONCRETE DISCHARGE TO SURFACE WATERS OF THE STATE IS PROHIBITED. 2.S. HOG FUEL (WOOD BASED MULCH) MAY BE SUBSTITUTED FOR OR COMBINED WITH QUARRY SPALLS IN AREAS THAT WILL NOT BE USED FOR PERMANENT ROADS. HOG FUEL tS NOT RECOMMENDED FOR ENTRANCE STABILIZATION IN URBAN AREAS. THE INSFECTOR MAY AT ANY TIME REQUIRE THE USE OF QUARRY BPALLS IF THE HOG FUEL IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT OR IF THE HOG FUEL IS BEING CARREEV ONTO AAVEME MT. 2.4. FENCING SHALL BE INSTALLED AS NECESSARY TO- RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE 2.5. 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. 1 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 FROM 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 A WHEEL WASH, IF WASHING IS USED, IT SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK. AND WASH 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, €XCEPT WHEN SWEEPING IS INEFFECTIVE AND THERE IS A THREAT TO PUBLIC SAFETY. IF IT IS NECESSARY TO WASH THE STREETS. A SMALL SUMP MUST BE CONSTRuCTEO. THE SEDIMENT WOULD THEN BE WASHED INTO THE SUMP WHERE IT CAN BE CONTROLLED AND DISCHARG♦=D APPROPRIATELY_ WASH WATER MUST BE PUMPED BACK CAM THE SITE AND CANNOT DISCHARGE TO SYSTEMS TRIBUTARY TO SURFACE WATERS. 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(5), FENCING SHALL BE INSTALLED TO CONTROL TRAFFIC. UNLESS OTHERWISE NOTED, DRAWING I$ MOT TO SOALF (NTSI STD. PLAN - 215.10 URPUBLIC WORKS APPRpyEO: DEPARTMENT STABILIZED CONSTRUCTION ENTRANCE GAZ 9/28/2018 I Fuu,: rv.:h, ad,nixr.ur DATE SECTION A Z"-4' HOCK 12 2 �i L A L • THE DISTANCE SUCH THAT POINTS B 18" MIN_ •f�=rfd' :fl��1 / J .. AAND B ARE OF EQUAL ELEVATION _ nAs BOTTOM OF DITCH SECTION B NOTES: 1. CONDITIONS OF USE 1.1 WHERE THERE IS CONCENTRATED RUNOFF FROM DISTURBED AREAS TO AND FROM SEDIMENT PONDS OR TRAPS. 1.2 TO CONVEY RUNOFF INTERCEPTED FROM UNDISTURBED AREAS AROUND THE SITE TO A NON -EROSIVE DISCHARGE POINT. 2. MAINTENANCE STANDARDS 2.1. ANY SEDIMENT DEPOSITION OF MORE THAN 6INC#IES SHALL BE REMOVED SO THAT THE CHANNEL IS RESTORED TO ITS ORIGINAL DESIGN CAPACITY. 2.2. THE CHECK DAMS SHALL BE EXAP41NED FOR SIGNS OF SCOURING AND EROSION OF THE BED AND BANKS. IF SCOURING AND EROSION HAS OCCURRED AFFECTED AREAS SHALL BE PROTECTED BY RIPRAP OR AN EROSION CONTROL BLANKET OR NET. UNLESS OTHERWISE NOTED. DRAWING 15 NOT TO SCALE (NTSI STD. PLAN - 217.40 w . PUBLIC WORKS DITCH CHECK DAMS PPR 0- 9/28/2018 DEPARTMENT GAZ NUIVFutlk won. omm�ixr.rur GATE MI CH4Fz WAS11 m Qf AT f�F008 G�STERF� ASS/ONAL RECORD DRAWINGS II:4a11[.9[6711 s MAX. DRAINAGE GRATE TRIM GRATE FRAME _ OVERFLOW BYPASS BELOW INLET GRATE DEVICE SEDIMENIT AND DEBRIS RLTE RE D WATER SECTION VIEW DRAINAGE GRATE (RECTANGULAR GRATE SHOVINI RETRIEVAL SYSTEM (TYP.) �5 If I OVERFLOW BYPASS JYP.) BELOW I NLET GRATE DEVICE ISOMETRIC VIEW NOTES: 1. PROTECTION SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DO'M.6.SLOPE AND WITHIN 500 FEET OF A DISTURBED OR CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE CATCH BASIN WILL BE CONVEYED TO A SEDIMENT POND OR TRAP. 2. INLET PROTECTION SHALL BE USED TO PROTECT THE DRAINAGE SYSTEM. 6. THE CONTRIBUTING DRAINAGE AREA MUST NOT BE LARGER THAN ONE ACRE, 4. SIZE THE BELOW INLET GRATE DEVICE (81001 FOR THE STORMWATER STRUCTURE IT WILL SERVICE. 5. THE BIGD SHALL HAVE A BUILT-IN HIGH -FLOW RELIEF SYSTEM (OVERFLOW BYPASS). S. THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE BIGD WTrHOUT SPILLING THE COLLECTED MATERIAL_ 7, PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION "1.3(15y 6. ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE STORAGE. THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY. UMLE5S C11MERWISE NOTED, DRAWING 15 MOT TO SCALE (NTSI STD. PLAN - 216.30 Y PUBLIC WORKS kPpR ED: DEPARTMENT CATCH BASIN INSERT GAZ 9/28/2018 1 F.m. w„h, mmnlxoux DATE i�_ NIMBI\h A P P R I APPROVED SURVEYED: SCALE: DESIGNED: BML DRAWN: W^^'' R ONE INCH CHECKED: IAT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY VERTICAL: NAVD 1988 HORIZONTAL: NAD 1983/1991 DATU M 1 CITY OF RENTON Planning/Building/Public Works Dept. R-431508 IN COMPLIANCE WITH CITY OF RENTON STANDARDS SOPHIE JO SHORT PLAT GRADING & T.E.S.C. DETAILS & NOTES UTILITY PERMIT # DATE: 02/18/25 PAGE DRAWING NO: GR-03 SHEET: OF:23