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HomeMy WebLinkAboutS-419406d rr O U W I- O z It Q C) 7) 6 0 U / 3 T / /m �Q � J / Q LF) o 0 o N_ / LOQ0 0 n 0 o a; U � � N El CD N Q� co r FILTER FABRIC MATERIAL 60" 2"x2"x14 ga. WIRE FABRIC OR EQUIV. 61, 2"x2"x14 ga. WIRE PROVIDE 314" - 1.5" WASHED GRAVEL BACKFILL OR NATIVE SOIL IN TRENCH & ON BOTH S� oP rSIDES OF FI L TER FENCE FABRIC ON THE SURFACE. N \-BURY BOTTOM OF FILTER MATERIAL IN 8"x12" TRENCH. I I 6' MAX. I I u I I "-MIRAFI 10OX OR EQUAL FILTER FABRIC MATERIAL %I- 2"x4" WOOD POST STANDARD OR BETTER OR EQUAL ALTERNATE. STEEL FENCE POSTS. SILT FENCE NOTES 1. FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID USE OF JOINTS. WHEN JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGE-THER ONLY AT A SUPPORT POST, WITH A MINIMUM 6-INCH OVERLAP, AND SECURELY FASTENED AT BOTH ENDS TO POST. 2. POSTS SHALL BE SPACED A MAXIMUM OF 6 FEET APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM OF 30 INCHES). 3. A TRENCH SHALL BE EXCAVATED APPROXIMATELY 8 INCHES WIDE AND 12 INCHES DEEP ALONG THE LINE OF POSTS AND UPSLOPE FROM THE BARRIER. 4. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH SUPPORT FENCE SHALL BE FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY-DUTY WIRE STAPLES AT LEAST 1 INCH LONG, TIE WIRES OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MINIMUM OF 4 INCHES AND SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. 5. THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO THE FENCE, AND 20 INCHES OF THE FABRIC SHALL BE EXTENDED INTO THE TRENCH. THE FABRIC SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. 6. WHEN EXTRA -STRENGTH FILTER FABRIC AND CLOSER POST SPACING IS USED, THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED. IN SUCH A CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO THE POSTS WITH ALL OTHER PROVISIONS OF ABOVE NOTES APPLYING. 7. FILTER FABRIC FENCES SHALL NOT BE REMOVED BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. STANDARD NOTES: A. THE FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID USE OF JOINTS. WHEN JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY AT A SUPPORT POST, WITH A MINIMUM 6-INCH OVERLAP, AND BOTH ENDS SECURELY FASTENED TO THE POST. B. THE FILTER FABRIC FENCE SHALL BE INSTALLED TO FOLLOW THE CONTOURS (WHERE FEASIBLE). THE FENCE POSTS SHALL BE SPACED A MAXIMUM OF 6 FEET APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM OF 30 INCHES). C. A TRENCH SHALL BE EXCAVATED, ROUGHLY 8 INCHES WIDE AND 12 INCHES DEEP, UPSLOPE AND ADJACENT TO THE WOOD POST TO ALLOW THE FILTER FABRIC TO BE BURIED. D. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH SUPPORT FENCE SHALL BE FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY-DUTY WIRE STAPLES AT LEAST 1 INCH LONG, TIE WIRES OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MINIMUM OF 4 INCHES AND SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. E. THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO THE FENCE, AND 20 INCHES OF THE FABRIC SHALL BE EXTENDED INTO THE TRENCH. THE FABRIC SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. F. WHEN EXTRA -STRENGTH FILTER FABRIC AND CLOSER POST SPACING ARE USED, THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED. IN SUCH A CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO THE POSTS WITH ALL OTHER PROVISIONS OF STANDARD NOTE E. APPLYING. G. THE TRENCH SHALL BE BACKFILLED WITH 314-INCH MINIMUM WASHED GRAVEL. H. FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED. I. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. MAINTENANCE STANDARDS: 1. ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY. 2. IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POND. 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. 4. SEDIMENT MUST BE REMOVED WHEN THE SEDIMENT IS 6 INCHES HIGH. 5. IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED. TYPICAL SILT FENCE NOT TO SCALE C P H CONSULTANTS Site Planning • Civil Engineering Landscape Architecture - Land Use Consulting 11321-B NE 120th Street Kirkland, WA 98034 - (425) 285-2390 101 South Wenatchee Avenue, Suite C3 Wenatchee, WA 98801 - (509) 293-7731 www.c hconsultants.com © 2023 CPH Consultants. LLC. All Rights Reserved. p TEMPORARY DIKES AND SWALES NOTES 1. SEED AND MULCH SHALL BE APPLIED WITHIN 5 DAYS OF DIKE CONSTRUCTION (SEE VEGETATION). 2. THE UPSLOPE SIDE OF THE DIKE SHALL PROVIDE POSITIVE DRAINAGE TO THE DIKE OUTLET. 3. NO EROSION SHALL OCCUR AT THE DIKE OUTLET. PROVIDE ENERGY DISSIPATION MEASURES AS NECESSARY. 4. SEDIMENT LADEN RUNOFF MUST BE RELEASED THROUGH A SEDIMENT TRAPPING FACILITY SUCH AS A POND, TRAP, OR SILT FENCE AS APPROPRIATE TO DRAINAGE AREA SIZE. IL IVIII Y. L/LPTH EARTH OR GRASS LINED 1 L Willy. DEPTH J ROCK LINED 12" COMPACT QUARRY SPALLS NOTES. 1. EARTH OR GRASS LINED DITCHES SHALL HAVE SLOPES OF 6% OR LESS AND A MAXIMUM FLOW VELOCITY OF 5FPS. 2. ROCK CHECK DAMS SHALL BE USED IN EARTH OR GRASS LINED DITCHES FOR SLOPES GREATER THAN 39'. 3. ROCK LINED DITCHES SHALL BE USED WHEN SLOPES EXCEED 6% OR FOR FLOW VELOCITY GREATER THAN 5FPS. MAINTENANCE STANDARDS: 1. ANY SEDIMENT DEPOSITION OF MORE THAN 0.5 FEET SHALL BE REMOVED SO THAT THE CHANNEL IS RESTORED TO ITS DESIGN CAPACITY. 2. IF THE CHANNEL CAPACITY IS INSUFFICIENT FOR THE DESIGN STORM, IT MUST BE DETERMINED WHETHER THE PROBLEM IS LOCAL (E.G., A CONSTRICTION OR BEND) OR THE CHANNEL IS UNDERDESIGNED. IF THE PROBLEM IS LOCAL, THE CHANNEL CAPACITY MUST BE INCREASED THROUGH CONSTRUCTION OF A BERM(S) OR BY EXCAVATION. IF THE PROBLEM IS UNDERDESIGN, THE DESIGN ENGINEER SHALL BE NOTIFIED AND THE CHANNEL REDESIGNED TO A MORE CONSERVATIVE STANDARD. 3. THE CHANNEL SHALL BE EXAMINED FOR SIGNS OF SCOURING AND EROSION OF THE BED AND BANKS. IF SCOURING OR EROSION HAS OCCURRED, AFFECTED AREAS SHALL BE PROTECTED BY RIP -RAP OR AN EROSION CONTROL BLANKET OR NET. TEMPORARY INTERCEPTOR DITCH NOT TO SCALE INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT. AS PER ROAD STANDARDS ------ R = 25' MIN GEOTEXTILE-111 4" 8" QUARRY SPALLS EDGE OF EXISTING ROAD SURFACE PROVIDE FULL WIDTH OF INGRESS/EGRESS AREA L 12" MIN CONSTRUCTION ENTRANCE NOTES: 1. THE STABILIZED CONSTRUCITON EXIT SHALL BE INSTALLED AND MAINTAINED IN ACCORDANCE WITH THE REVISE TO KING COUNTY REFERENCE. SEE WSDOT STANDARD PLAN 1-80.10.01 FOR ADDITIONAL DETAIL AND CONSTRUCTION PLAN NOTES. 2.CONSTRUCT STABILIZED CONSTRUCTION EXITS WITH A 12-INCH THICK PAD OF 4-INCH TO 8-INCH QUARRY SPALLS, A 4-INCH COURSE OF ATB, OR USE OF EXISTING PAVEMENT. DO NOT USE CRUSHED CONCRETE, CEMENT, OR CALCIUM CHLORIDE FOR CONSTRUCTION EXIT STABILIZATION. 3. ADDITIONAL ROCK SHALL BE ADDED PERIODICALLY TO MAINTAIN PROPER FUNCTION OF THE PAD. IF THE PAD DOES NOT ADEQUATELY REMOVE THE MUD FROM THE VEHICLE WHEELS, THE WHEELS SHALL BE HOSED OFF BEFORE THE VEHICLE ENTERS A PAVED STREET. THE WASHING SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK AND WASH WATER SHALL DRAIN TO A SEDIMENT RETENTION FACILITY OR THROUGH SILT FENCE. MAINTENANCE STANDARDS: 1. QUARRY SPALLS SHALL BE ADDED IF THE PAD IS NO LONGER IN ACCORDANCE WITH THE SPECIFICATIONS. 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. ANY SEDIMENT 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. STREET WASH WATER SHALL BE COLLECTED AND DISPOSED OF AS PROCESS WASTEWATER, OR DISPOSED OF ON -SITE USING APPROVED METHODS/BMPS. 4. IMMEDIATELY REMOVE QUARRY SPALLS FROM THE ROADWAY THAT HAVE BEEN TRANSPORTED FROM THE STABILIZED CONSTRUCTION EXIT. 5. UPON PROJECT COMPLETION AND SITE STABILIZATION, ALL CONSTRUCTION ACCESSES INTENDED AS PERMANENT ACCESS FOR MAINTENANCE SHALL BE PERMANENTLY STABILIZED. STABILIZED CONSTRUCTION ENTRANCE NOT TO SCALE BMP C105 0 CONSTRUCTION PERMIT SUBMITTAL PCE 117122 MJH SURVEYED: CSB 1 RECORD DRAWINGS PCE 8/1/23 MJH DESIGNED: JBS • DRAWN: V PCE CHECKED: Know what's below. MJ H Cal I before you dig. N0. REVISION BY DATE APPR APPROVED: ROADWAY IMPROVEMENTS TEMP. DI TCH OR SWALE, PER PLAN ROUGH OR FINISHED GRADE TEMPORARY GRAVEL OUTLET NOTES 1. GRAVEL SHALL BE 518-INCH MINUS WASHED ROCK. A LAYER OF FILTER FABRIC SHALL BE EMBEDDED IN THE GRAVEL. 2. MINIMUM LENGTH IN FEET OF THE GRAVEL OUTLET STRUCTURE SHALL BE EQUAL TO SIX TIMES THE NUMBER OF ACRES OF CONTRIBUTING DRAINAGE AREA. 3. THE INVERT OF THE GRAVEL OUTLET SHALL NOT BE LESS THAN 6 INCHES LOWER THAN THE MINIMUM ELEVATION OF THE TOP OF THE DIKE. 4. WATER SHALL BE DISCHARGED FROM THE GRAVEL OUTLET ONTO AN ALREADY STABILIZED AREA OR INTO A STABLE WATERCOURSE. 5. THE GRAVEL OUTLET STRUCTURE SHALL BE INSPECTED AND REPAIRED AFTER EACH RUNOFF -PRODUCING RAIN. THE GRAVEL MUST BE REPLACED WHEN THE STRUCTURE CEASES TO FUNCTION AS INTENDED DUE TO SEDIMENT ACCUMULATION AMONG THE GRAVEL. 6' MIN. 12" MIN. 12" MIN. 12" MIN. 0 7i7/�7 / /%/_711/ 1717 r BOT. ELEV.= SEE TABLE NATI VE SOIL OR COMPACTED BACK FILL GEOTEXTILE ni IT/ rr 2" TO 4" ROCK 314" TO 1 %2" WASHED GRAVEL STABILIZE EXPOSED SIDE SLOPES WITH VEGETATION OR EQUIVALENT MEASURES 12" MIN. OVERFLOW 4' MIN. TOP OF BERM DEPTH (TYP.) QUARRY SPALL PROTECTION W.S. ELEV. = SEE TABLE AT OVERFLOW J� L 12" MIN. L 12" MIN. / 2" TO 4" ROCK 3/4" TO 1%2" WASHED GRAVEL NON -WOVEN FILTER FABRIC DISCHARGE TO STABILIZED CONVEYANCE PATH OR APPROVED OUTLET PIPE- c97 Irinni NOTES: " " 1. SQUARE FOOTAGE REQUIREMENT SHOWN AT WEIR WATER SURFACE ELEVATION. 2. TRAP MAY BE FORMED BY BERM OR BY PARTIAL OR COMPLETE EXCAVATION. 3. CONTRACTOR MAY PROPOSE ABOVE -GRADE TANK SYSTEM W/PUMP INTAKE AND OUTLET OR SIMILAR MANUFACTURED SEDIMENT REMOVAL/SETTLING SYSTEM EQUIVALENT TO THE DESIGN CAPACITY AND PERFORMANCE OF THE TYPICAL SEDIMENT TRAPS FOR APPROVAL BY ENGINEER. TYPICAL SEDIMENT TRAP DETAIL NOT TO SCALE WORK AREA / VARIES Iz IJ PER PLAN I � ICL to ICL APPROX. LIMIT OF GRADING CONSTRUCTION FENCING (ORANGE PLASTIC) AT EXIST. GRADE UPSLOPE AND DOWNSLOPE OF DISTURBED AREAS AND LEVEL AREAS ADJACENT TO SENSITIVE AREA P� I______ TRACT BUFFER 2'•1 M 6" MAX. EXIST. GRADE 2.� I FINISHED SLOPE, I1` PER PLAN CLEARING LIMITS TYP. SILT FENCE AT EXIST. NOTE: GRADE DOWNSLOPE OF SEE NOTES ON ESC PLAN (SHEET C1.01) FOR ADDITIONAL LIMITS FOR SILT FENCE DISTURBED AREAS (SEE NOTE) LOCATION/PHASING. TYPICAL CLEARING LIMITS NOT TO SCALE CONTINUOUS ORANGE CONSTRUCTION FENCE, TENSAR OR EQUAL I 1-L METAL FENCE POSTS 10' MAX. r- -, OR WOOD STAKE CONSTRUCTION FENCE (TYP.) NOT TO SCALE SCALE: ONE INCH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY VERTICAL: NAVD 1988 HORIZONTAL: NAD 1983/1991 DATUM QUARRY SPALLS L=THE DISTANCE SUCH THAT POINTS A AND B ARE OF EQUAL ELEVATION V. CROSS SECTION ROCK CHECK DAM CHECK DAM NOTES 1. THE MAXIMUM SPACING BETWEEN THE DAMS SHALL BE SUCH THAT THE TOE OF THE UPSTREAM DAM IS AT THE SAME ELEVATION AS THE TOP OF THE DOWNSTREAM DAM. 2. ROCK CHECK DAMS SHALL BE CONSTRUCTED OF 2-TO 4-INCH DIAMETER ROCK. THE ROCK MUST BE PLACED BY HAND OR MECHANICAL PLACEMENT (NO DUMPING OF ROCK TO FORM DAM) TO ACHIEVE COMPLETE COVERAGE OF THE DITCH OR SWALE AND TO INSURE THAT THE CENTER OF THE DAM IS LOWER THAN THE EDGES. 3. LOG CHECK DAMS SHALL BE CONSTRUCTED OF 4- TO 6-INCH DIAMETER LOGS. THE LOGS SHALL BE EMBEDDED INTO THE SOIL AT LEAST 18 INCHES. 4. IN THE CASE OF GRASS -LINED DITCHES AND SWALES, CHECK DAMS SHALL BE REMOVED WHEN THE GRASS HAS MATURED SUFFICIENTLY TO PROTECT THE DITCH OR SWALE THE AREA BENEATH THE CHECK DAMS SHALL BE SEEDED AND MULCHED IMMEDIATELY AFTER DAM REMOVAL. 5. CHECK DAMS SHALL BE CHECKED FOR SEDIMENT ACCUMULATION AFTER EACH SIGNIFICANT RAINFALL. SEDIMENT SHALL BE REMOVED WHEN IT REACHES ONE HALF OF THE ORIGINAL DAM HEIGHT OR BEFORE. ROCK CHECK DAM U , THE AS -BUILT INFORMATION SHOWN ON THIS PLAN IS PER A FIELD SURVEY PERFORMED BY MEAD GILMAN A SSOCIA TES AND/OR RECORD DATA PROVIDED BY THE CONTRACTOR. NOT TO SCALE S-419406 IN COMPLIANCE WITH CITY OF RENTON STANDARDS CARNOUSTIE COURT SANITARY SEWER IMPROVEMENTS TESC DETAILS O U W DATE: 7/25/23 Cn FIELDBOOK: Z) PAGE: O DRAWING NO: z C1.100 cr SHEET: G OF: O Q V U