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Home My WebLink AboutR-407206CN DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 IC:) f� • l W 2-x2.14 GAUGE WIRE, OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC 2MIN 6' MAX. POST SPACING MAY BE INCREASED I I I 12' MI TO 8' IF WIRE BACKING IS USED I I 4"x4" MIN. TRENCH ;UI BACKFILL TRENCH WITH NATIVE SOIL OR 3/4" TO 1-1/2" WASHED GRAVEL 2"x4" WOOD POSTS, STEEL FENCE POSTS, OR EQUIVALENT (TYP.) NOTES: 1. CONDITIONS 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 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. ADS (ASTM D4751) 3DA00 SIEVE SIZE (0.60-0.15mm) FOR SILT FILM 50-100 SIEVE SIZE (0.30-0.15mm) FOR OTHER FABRICS WATER PERMITTIVITY (ASTM D4491) 0.02 SEC'' MINIMUM GRAB TENSILE STRENGTH (ASTM D4632) 180 LBS. MIN. FOR EXTRA STRENGTH FABRIC 100 LBS. MIN. FOR STANDARD STRENGTH FABRIC GRAB TENSILE ELONGATION (ASTM D4632) 30% MAX. (WOVEN) ULTRAVIOLET RESISTANCE (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 21 2.4. IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4"X4' TRENCH MAY BE REDUCED AS LONG AS THE BOTTOM 8 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 CONCENTRATED 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 CHANNELIZATION 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 61NCHES HIGH. 3.5. IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED. UNLESS OTHERWISE NOTED, DRAWING 15 NOT TO SCALE (NTS) AouSTD. PLAN - 214.00 _•® DEPARTMENT � PUBLIC WORKS SILT FENCE PR � GAZ 9/28/2018 I yl) wam wom eemmium« DATE Dripline l I I I I _t RUOTS "h One sign per 50 feet- (rninimurn of 2 signs) Crib -cal f ' Rooli ti 10 Fx" TREE PROTECTION FENCE DETAIL. j.6 FT. Temporary Chain Link Fence NO TRESSPASSING PROTECTED TREES Encompass ENGINEERING & SURVEYING Western Washington Division 165 NE Juniper Street, Suite 201 - IssaQuah, WA 98027 - Phone: (425) 392-0250 • Fax: (425) 391-3055 Eastern Washington Division 407 Swiftwater Blvd. ■ Cle Elum, WA 98922 - Phone: (509) 674-7433 ■ Fax: (509) 674-7419 :45 DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT, AS PER CITY ROADSTANDARDS OXIS�`NG�ONO 4"-8" QUARRY SPALLS --� GEOTEXTILE CONSTRUCTION ENTRANCE NOTES: 1. 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. ITS RECOMMENDED THAT THE ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD 15' MIN. PROVIDE FULL WIDTH OF INGRESS/EGRESS AREA 12' MIN. THICKNESS NOTES: 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. t.2. FOR RESIDENTIAL CONSTRUCTION PROVIDE STABILIZED CONSTRUCTION ENTRANCES FOR EACH RESIDENCE IN ADDITION TO THE MAIN SUBDIVISION ENTRANCE. STABILIZED SURFACES SHALL BE OF SUFFICIENT LENGTHANIDTHTO PROVIDE VEHICLE ACCESS/PARKING, BASED ON LOT SIZElCONFIGURATION. 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. ADS (ASTM D4751) 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. 2.3. 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 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. 2.4. 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. 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 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, EXCEPT 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 CONSTRUCTED. THE SEDIMENT WOULD THEN BE WASHED INTO THE SUMP WHERE IT CAN BE CONTROLLED AND DISCHARGED APPROPRIATELY. WASH WATER MUST BE PUMPED BACK ONTO 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. 3.6. IF VEHICLES ARE ENTERING OR EXITING THE SITES AT POINTS OTHER THAN THE CONSTRUCTION ENTRANCE(S), FENCING SHALL BE INSTALLED TO CONTROL TRAFFIC. UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) Atwbi STD. PLAN - 215.10 ® PUBLIC WORKS APPROVED: -� DEPARTMENT STABILIZED CONSTRUCTION ENTRANCE GAZ 9/28/2018 wmK woe�ndmi":ncc« DATE I 2' MIN. I! SCALE SPACING DEPEINDS GIN SLOPE GRADIENT` INTERCEPTOR SWALE DETAIL N. T. S. ROCK MUST COMPLETELY COVER THE BOTTOM AND SIDES OF THE DITCH rr� 6" MIN. 24" MIN. 2H;1V SLOPES L=THE DISTANCE SUCH THAT POINTS A AND B ARE OF EQUAL ELEVATION . 2"- 4" ROCK CHECK DAM SPACING o ��c 39374 TERMS 1 AS—BUILTS �ssIONAL�� 0311912021 N0. CHECK DAM DETAIL REVISION :45 DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 DRAINAGE GRATE GRATE FRAME f 1 SEDIMENT AND DEBRIS DRAINAGE GRATE (RECTANC BI 5" MAX. TRIM _ OVERFLOW BYPASS l ' BELOW INLET GRATE DEVICE F; �t FILTERED WATER - u ISOMETRIC VIEW NOTES: 1. PROTECTION SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE 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. 3. THE CONTRIBUTING DRAINAGE AREA MUST NOT BE LARGER THAN ONE ACRE. 4. SIZE THE BELOW INLET GRATE DEVICE (BIGD) FOR THE STORMWATER STRUCTURE IT WILL SERVICE. 5. THE BIGD SHALL HAVE A BUILT-IN HIGH -FLOW RELIEF SYSTEM (OVERFLOW BYPASS). 6. THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE BIGD WITHOUT SPILLING THE COLLECTED MATERIAL. 7. PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION 8.01.3(15). 8. 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. UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) STD. PLAN - 216"30 ® PUBLIC WORKS APPR ED: DEPARTMENT CATCH BASIN INSERT GAZ 9/28/2018 P"car Wog.:Adm 6t, ro, DATE SURVEYED: SDM DESIGNED: EDM DRAWN: TLK EDM 0JI19121 SDM I CHECKED: EDM BY DATE APPR APPROVED: NEM FIGURE ❑.3.5.E SEDIMENT POND PLAN VIEW KLX DMDER INEG SLOPE TO PREVENT FLOW ARQUND =LE 1HE PONE LENGTH SHALL BE 3 TO B T9X5 THE 4AVINVM POW WIDTH ROHB LENGTH H FLQW SILT 4'EHCE 0R� EQUIVALENT QMDEI NOTE: POI MAY BE F0R41ED BY BERM OR Bf PARTIAL OR CCWLETE EXCAVJ.TION � PPE SEDIMENT POND DETAIL N. T. S. :45 Plan Lath and flagging on 3 sides Sandbag 3erm 10 mil (plastic lining A i 1m Berm Section A -A lining Type "Below Grade" Stake (tyi lil plastic lining Sandbag Notes: 1. Actual layout determined in the field. 2. A concrete washout sign shall be installed within 10 m of the temporary concrete washout facility. — Wood frame securely fastened around entire perimeter with two stakes 10 mil plastic lining Section B-B 2X12 rough g Plan wood frame Tvoe "Above Grade" with Wood Planks NOT TO SCALE lo` Figure II-4.1.7a Concrete Washout Area DEPARTMENT OF Revised June2015 ECOLOGYPlease see http://Wvvvv.ecy.wa.gov/copyright htmlfor copyright notice including permissions; State of Washington limitation of liability, and disclaimer. P1ER9EH4'1' 06Ri SPILLWAY BISSHNdGE TO STA91i COMUAHCE. ODTLEF OR LEVEL SPRF�BER Know what's below. Call before you dig. SCALE: VERTICAL: NAVD 1988 1 t1=20 1 HORIZONTAL: NAD 1983/1991oi CITY OF RENTON ONE INCH DATUM AT FULL SCALE Planning/Building/Public Works Dept. IF NOT ONE INCH SCALE ACCORDINGLY THESE PLANS ARE 'AS —BUILT" AND THE INFORMATION SHOWN ACCURATELY REFLECTS EXISTING FIELD CONDITIONS AS OF THIS DATE: MARCH 3, 2021 STEVEN D. McCASKEY PLS 42676 IN COMPLIANCE WITH CITY OF RENTON STANDARDS SAPPHIRE ON TALBO T TESC DETAILS v J U iJJ (— � QJ QO O 0 00 J m J Q L-Li_ DATE:0311912021 FIELDBOOK: N/A n= PAGE: NIA (��L �L DRAWING NO: 18615 SHEET: G OF: 19 R-407206