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HomeMy WebLinkAboutR-4200090 0 N 0 LU Z 5W G I— n r) W r2 V i rr LU I— Q w a z TOE IN 4" x 4" NOTES: 1. CONDITIONS OF USE 1.1. PLASTIC COVERING MAY BE USED ON DISTURBED AREAS THAT REQUIRE COVER MEASURES FOR LESS THAN 30 DAYS. 1.2. PLASTIC IS PARTICULARLY USEFUL FOR PROTECTING CUT AND FILL SLOPES AND STOCKPILES. 1.3. CLEAR PLASTIC SHEETING MAY BE USED OVER NEWLY -SEEDED AREAS TO CREATE A GREENHOUSE EFFECT AND ENCOURAGE GRASS GROWTH. CLEAR PLASTIC SHOULD NOT BE USED FOR THIS PURPOSE DURING THE SUMMER MONTHS. 1.4. THIS METHOD SHALL NOT BE USED UPSLOPE OF AREAS THAT MIGHT BE ADVERSELY IMPACTED BY RUNOFF. SUCH AREAS INCLUDE STEEP AND UNSTABLE SLOPES. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. PLASTIC SHEETING SHOULD HAVE A MINIMUM THICKNESS OF 0.06 MILLIMETERS. 2.2. IF EROSION AT THE TOE OF A SLOPE IS LIKELY, A GRAVEL BERM, RIPRAP, OR OTHER SUITABLE PROTECTION SHALL BE INSTALLED AT THE TOE OF THE SLOPE IN ORDER TO REDUCE THE VELOCITY OF RUNOFF. 2.3. TIRES, SAND BAGS, OR EQUIVALENT MAY BE USED TO WEIGHT PLASTIC. 2.4. SEAMS BETWEEN SHEETS MUST OVERLAP A MINIMUM OF 12 INCHES AND BE WEIGHTED OR TAPED. 3. MAINTENANCE STANDARDS 3.1. TORN SHEETS MUST BE REPLACED AND OPEN SEAMS REPAIRED. 3.2. IF THE PLASTIC BEGINS TO DETERIORATE DUE TO ULTRAVIOLET RADIATION, IT MUST BE COMPLETELY REMOVED AND REPLACED. 3.3. WHEN THE PLASTIC IS NO LONGER NEEDED, IT SHALL BE COMPLETELY REMOVED. UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) PUBLIC WORKS PRO STD. PLAN - 213.30 V64 DEPARTMENT PLASTIC COVERING GAZ 9/28/2018 Gr Public Works Administrator DATE PLASTIC COVERING NOT TO SCALE 5" MAX. DRAINAGE GRATE TRIM GRATE FRAME _ C— OVERFLOW BYPASS BELOW INLET GRATE DEVICE SEDIMENT AND DEBRIS =b FILTERED WATER SECTION VIEW DRAINAGE GRATE (RECTANGULAR GRATE SHOWN) RETRIEVAL SYSTEM (TYP.) J OVERFLOW BYPASS (TYP.) BELOW INLET GRATE DEVICE 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 c ,} PUBLIC WORKS APPR ED: DEPARTMENT CATCH BASIN INSERT GAZ 9/28/2018 Public Works Administrator DATE INLET PROTECTION NOT TO SCALE TxT 14 GAUGE WIRE, OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC 6' MAX. POST SPACING MAY BE INCREASED 4"x4" MIN. TRENCH TO 8' IF WIRE BACKING IS USED BACKFLL TRENCH WITH NATIVE SOIL OR 3/4'! TO 1-1/2" WASHED GRAVEL Tx4" WOOD POSTS, STEEL FENCE POSTS, OR EQUIVALENT (TYP.) 2' MIN NOTES: 1. CONDITIONS OF USE 1I .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) 30-100 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 2H:1V 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 6 INCHES HIGH. 3.5. IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED. UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) DEPARTMENT GAZ STD. PLAN - 214.00 U64 PUBLIC WORKS SILT FENCE PR a/z8/zo18 Public Works Administraor DATE FILTER FENCE NOT TO SCALE O�/2//201?9 CiNlEngirieers 001 ASI-001 CJ 9/27/22 DT suRvEy : �: 1 - Sbudu2lErgirreers T.L. HOR ONTAL- NAD 1983/1991 — aAdsa�Am„�� 002 PROGRESSIVE CONSTRUCTION SET CJ 12/5/22 DT DESIGNED: PER SHEET CommunityPlenmws 003 UPDATES PER CONDITIONS OF APPROVAL DT 1/27/23 DT J.N. Q © O L-s—y- 004 GRADY WAY STORMWATER REVISIONS CW 12/26/23 TS DRAWN. J.N. Neighbors ONE INCH DATU M Know whais below. 005 AS —BUILT REVISIONS AA 03/26/24 TS CHECKED: AT FULL SCALE ,,I T A C O M A • S E A T T L E DT IF NOT ONE INCH yyouU Call before I 2215 North 30th Street, Suite 300, Tacoma, WA 98403 253,383.2422 TEL APPROVED: SCALE ACCORDINGLY dig. 1200 Sixth Avenue, Suite 1620, Sealtle, WA 98101 206.267.2425 TEL NO. R EVI S I 0 N BY DATE AP P R R=25'MIN. INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT, AS PER CITY ROAD STANDARDS EX�S�\NGROPO C-8" QUARRY SPALLS GEOTEXTILE 12" MIN. THICKNESS CONSTRUCTION ENTRANCE NOTES: 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 100' MIN. 15' MIN. PROVIDE FULL WIDTH OF INGRESS/EGRESS AREA 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. 1.2. FOR RESIDENTIAL CONSTRUCTION PROVIDE STABILIZED CONSTRUCTION ENTRANCES FOR EACH RESIDENCE IN ADDITION TO THE MAIN SUBDIVISION ENTRANCE. STABILIZED SURFACES SHALL BE OF SUFFICIENT LENGTH/WIDTH TO PROVIDE VEHICLE ACCESS/PARKING, BASED ON LOT SIZE/CONFIGURATION. 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) 2045 (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. 3.5. 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) STD. PLAN - 215.10 014R) PUBLIC WORKS APPROVED: DEPARTMENT STABILIZED CONSTRUCTION ENTRANCE GAZ 9/28/2018 valovPublic Works Administrator DATE CONSTRUCTION ENTRANCE NOT TO SCALE RECORD NOTE 03/26/2024 THESE RECORD DRAWINGS HAVE BEEN PREPARED BASED ON SURVEY INFORMATION PROVIDED BY A THIRD -PARTY SURVEYOR. AHBL WILL BE RESPONSIBLE FOR THE DATA PROVIDED BY THEM. THE THIRD -PARTY SURVEYOR WILL BE RESPONSIBLE FOR THE ACCURACY OF THE ACTUAL LOCATIONS IN THE FIELD. THOSE RELYING ON THIS RECORD DOCUMENT ARE ADVISED TO OBTAIN INDEPENDENT VERIFICATION OF ITS ACCURACY BEFORE APPLYING IT FOR ANY PURPOSE. • CITY OF RENTON Planning/Building/Public Works Dept. rW N U R-420009 I � IN COMPLIANCE WITH CITY OF RENTON STANDARDS 7 WATERSHED APARTMENTS CONSTRUCTION DRAFT SET TESC DETAILS Cw G I— rr Q a 0 LU = DATE: 03/28/2023 FIELDBOOK: PAGE: Uj DRAWING NO: C3.10 a SHEET. OF: 9 48