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Home My WebLink AboutR-377604S.C.E. NOTES: 1. SEE ADJACENT DETAIL 2. A SEPAR477ON GEOTEXIILE SHALL BE PLACED UNDER THE SPACES TO PREVENT FINE SEDIMENT FROM PUMPING UP INTO THE ROCK PAD. THE GEOTEXRLE SHALL MEET THE FOLLOWING STANDARDS. GRAB TENSILE STRENGTH (ASTM 0- 4751) .....................200 PSI GRAB TENSILE ELONGATION (ASN D- 4632) ..................301 MAX. MULLEN BURST STRENGTH (ASIM D- 3786 - 804). .......... 400 PSI MIN. ADS (ASTM D- 47 51) .............................. ..........................20 -45 (U.S. STANDARD SIEVE SIZE) 3. HOG FUEL MAY BE SUBSINUIED FOR OR COMBINED WITH QUARRY SPALLS IN AREAS THAT WILL NOT BE USED FOR PERMANENT ROADS. THE EFFECTIVENESS OF HOG FUEL IS HIGHLY ✓ARABLE, BUT IT HAS BEEN USED SUCCESSFULLY ON MANY SITES IT GENERALLY REQUIRES MORE AANTENANCE THAT QUARRY SPALLS. THE INSPECTOR ALAY 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 15 BEING CARRIED ONTO PAVEMENT. HOG FUEL IS PROHIBITED FROM PERMANENT ROADBEDS BECAUSE ORGANICS IN THE SUB -GRADE SOILS CAUSE DIFFICULTIES WITH COMPACTION. 4. FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE. 5. WHENEVER POSSIBLE, THE ENTRANCE SHALL BE CONSTRUCTED ON A FIRM COMPACTED SUBGR40E. THIS CAN SUBSTANTIALLY INCREASE THE EFFECTIVENESS OF THE PAD AND REDUCE THE NEED FOR MAINTENANCE. (21 STABILLMD CONSTRUCTION ENTRANCE Q NOT TO SCALE ROCK MUST COMPLETELY COVER THE BOTTOM AND SIDES OF THE DITCH 2:1 SLOPES L L = THE DISTANCE SUCH THAT POINTS A AND B ARE OF EQUAL ELEVATION (2 )ROCK CFIECK DAM Q NOT TO SCALE T 24" MIN. 2"-4° ROCK PORTION OF THE NE 114 OF SECTION 6, TWP. 22 N., RGE SE., W.M. KING COUNTY, WASHIlVGTON JOINTS IN FILTER FABRIC MATER14L SHALL BE SPLICED AT POSTS USE STAPLES OR WIRE RINGS OR EQUIVALENT TO ATTACH FABRIC TO POSTS 2x2" BY 14 GAUGE WIRE OR EQUIVALENT, GRATE n �IF STANDARD STRENGTH FABRIC USED GROUND SURFACE n i \ OVERFLOW / ;ti II a 0.5 C.F. MIN 4 STORAGE -� >A.� soup WALLS Z - a N 2 x4" W000 POSTS STEEL POROUS BOTTOM CATCH BASIN FENCE POST, REHAB OR EQUNALEM I IN MINIMUM x4F TRENCH LJ LJ FILTER MEDA FOR DEWATERING a 6' MAXIMUM MAY BE INCREASED TO 8' IF WIRE BACKING IS USE 2x4° WOOD POSTS STEEL FENCE POST, REEAR OR EQUIVALENT FILTER 2 "x2" BY 14 GAUGE WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED RESS AREA DACKFILL TRENCH WITH NATIVE SOIL OR 314 " -L5° WASHED GRAVEL - MINIMUM 4x4" TRENCH SILT FENCE NOTES: 1. SEE ADJACENT DETAIL 2. THE GEOTEXRLE USED MUST MEET THE FOLLOWING SPECIFICATIONS: ADS (ASTM D- 4751) 30 -100 SIEVE SIZE FOR SILT FILM 50 -100 SIEVE SIZE FOR 07HLR FABRICS WATER PERMITTMTY (ASTM 0 -4491) 0.02 SEC -I MINIMUM GRAB TENSILE STRENGTH (ASTM 0 -4632) 180 LOS MIN. FOR EXTRA STRENGTH FABRIC 100 LOS MIN STANDARD STRENGTH FABRIC GRAB TENSILE ELONGATION (ASTM D -4632) 301 MAX. ULTRAVIOLET RESISTANCE (ASTM D -4355) 701 MIN. A COPY OF THE MANUFACTURERS' FABRIC SPECIFIC477ONS MUST BE AVAILABLE ONSITE 3. 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. 4. WHERE THE FENCE IS INSTALLED, THE SLOPE SHALL BE NO STEEPER THAN 2H:IV. 2 SILT FENCE DETAIL Q NOT TO SCALE 2.1 MAX N LEVEL - BOTTOM (a)INTERCEPTOR SWALE Q NOT TO SCALE INSERT NOTES: 1. ANY ACCUMULATED SEDIMENT ON OR AROUND THE FILTER FABRIC PROTECTION SHALL BE REMOVED IMMEDATELY. SEDIMENT SHALL NOT BE REMOVED KITH WATER, AND ALL SEDIMENT MUST BE DISPOSED OF AS FILL ON SITE OR HAULED OFF SITE 2 ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLED ONE -THIRD OF THE AVAILABLE STORAGE. 3. THE FILTER MEDA FOR THE INSERT SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY. r3'�CATCHBASININSERT CROSS - SECTION Q NOT TO SCALE I FSA PSIA DA►i'fi�er• Miwi mluc / Ames 99��rf p4M hD 1.. 4e I I t catr.9ory33r Webl ar1� / �,Li a•4. Owner lditlakls+ ANes vot"r4ma a"Me 2.404 sp mm P ow • SIANI&Nnea f"m %oft Sims Qm* %mm p+ P DamOm 6r 16' O.C. S gsko E PSM KnaN 11 be om you. 9 aqM how t 1111 om iiiwe 4' O.C. 2 piba 24 MP Call before you dig. MdTOai� UTILITTCONFLICTNOTE.' Ribnoop"= re&llo.raia•oumt I.O.C. 2891w 12 R CAUTION- &Pwfbwkwpn dbo =wabmy O.O.C. 2 Sd1m 24 S (:j:)MRGATIONAREA PLANnNG PLAN '\, 4�`NOT TO SCALE EROSIONAND SEDEWF- NATION CONTROL NOTES 1. APPROVAL OF THIS EROSION AND SEDIMENTATKNI CONTROL (ESC) PLAN DOES NOT CONSRME AN APPROVAL OF PERMANENT ROAD OR DRAINAGE DESIGN (EG. SIZE AND LOCATION OF ROODS, PIPES, RESTRICTORS CHANNELS, REENTION FACILITIES, UTILITIES ETG) 2. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MLAINTEN4NCE REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE APPLICANT /ESC SUPERVISOR UNTIL ALL CONSTRUCTION IS APPROVED. 3. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PUN Wi4U BE CLEARLY RUGGED BY SURVEY TAPE OR FENCING, IF REQUIRED, PRIOR TO CONSTRUCTION (SWOM APPENDIX D). DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEWING LIMITS SHALL BE AAINTAINED BY THE APPLICANT /ESC SUPERVISOR FOR THE DURATION OF CONSTRUCTION. 4. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND WVNTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES; SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEW AND TRACK OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. 5. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING SO AS TO ENSURE THAT THE TRANSPORT OF SEDIMENT TO SURFACE WATERS. DRAINAGE SYSTEMS AND ADJACENT PROPERTIES IS WNIMIZED. 6. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQ IREMENIS FOR ANTICIPATED SITE CONDITIONS DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND MODIFIED TO ACCOUNT FOR CHANGING S17E CONDITIONS (EG. ADDITIONAL COYER MEASURE, ADDTIONAL SUMP PUMPS, RELOC47ION OF DITCHES AND SILT FENCES PERIMETER PROTECTION ETC.). 7. THE ESC FACILITIES SHALL DE INSPECTED DAILY BY THE APPLICANT /ESC SUPERVISOR AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING. WRITTEN RECORDS SHALL BE KEPT OF WEEKLY REVIEWS OF THE ESC FACILITIES. 8. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING 714E WET SEASON OR SEVEN DAYS DURING THE DRY SEASON SHALL BE IMMEDATELY STABILIZED WITH THE APPROVED ESC COVER METHODS (EG, SEEDING MULCHING PLASTIC COVERING, ETC.). 9. ANY AREA NEEDING ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7) DAYS. 10. THE ESC FACILITIES ON INACTNE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOWING A STORM EVENT. 11. AT NO TIME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLFANING OPEPA71ON STALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 12. ANY PERMANENT RETENTION /DETENTION FACILITY USED AS A TEMPORARY SETTING BASIN SHALL BE MODIFIED WITH THE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE PERMANENT FACILITY IS TO FUNCTION ULITU47ELY AS AN INFlLTRATKLN 5151Eµ THE TEMPORARY FACILITY MUST BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILITY. 13. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX 0 OF THE SURFACE WATER DESIGN MANUAL 14. PRIOR TO THE BEGINNING OF THE WET SEASON (OCT. 1), ALL D/SNRBED AREAS SHALL BE REVIEWED 70 IDENTIFY WHICH ONES CAN BE SEEDED IN PWARABON FOR THE WINTER PANS. DISTURBED AREAS SHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. A SKETCH MAP OF THOSE AREAS TO BE SEEDED AND THOSE AREAS TO RaVIN UNCOVERED SHALL BE SUBMITTED TO THE ODES INSPECTOR FOR RENEW. SEASONAL CLEARING AND GRADING NOTES: APPLICABLE FROM OCTOBER 1 THROUGH APRIL 30. 1. THE ALLOWED TIME THAT A DISTURBED AREA CAN REMAIN UNWORKED WITHOUT COVER MEASURES IS REDUCED TO TWO DAYS RANTER THAN SEVEN. 2 STOCKPILES AND STEEP CUT AND FILL SLOPES ARE TO BE PROTECTED IF UNW'ORKED FOR MORE THAN 12 HOURS. 3. COVER MATERIALS SUFFICIENT TO COVER ALL DISTURBED AREAS SFWl BE STOCKPILED ON SITE. 4. ALL AREAS THAT ARE TO BE UNWYWKED WITHIN THE WET SEASON SHALL BE SEEDED WIM/N ONE WEEK OF THE BEGINNING OF THE WET SEASON, OCTOBER 1 TO MARCH 31. 5. MULCH IS REQUIRED TO PROTECT ALL SEEDED AREAS. 6. FIFTY LINEAR FEET OF SILT FENCE (AND THE NECESSARY STAKES) PER ACRE OF DISTURBANCE MUST BE STOCKPILED ON S/HE. 7. CONSTRUCTION ROAD AND PARKING LOT STABILIZATION ARE REQUIRED FOR ALL SITES UNLESS THE S17E IS LINDERMN BY COARSE- GRAINED SQL 8. SEDIMENT RETENRON IS REQUIRED UNLESS NO OFF SHE DISCHARGE IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW. 9. SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFF SITE DISCHARGE IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW. 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