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Home My WebLink AboutR-383807Li Ld z f 0 LLJU �/ D ry 0 ry n W N- L� W W U Z W W Z w Q Z w J LL_ FAARI(; TO POSTS. 2"x2" BY 14 Ga. WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC ---` 6' IAAX. H , / POST SPACING MAY Be INCREASED MINIMUM 4"x4" TRENCH TO V IF WIRE BACKING IS USED BACKFILL TRENCH WITH 2"x2" BY 14 Ga. WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC ---` 2"x4' WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT z N NOTES 1. CONDITION 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 INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FLOW. ANY CONCENTRATED FLOW MOST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. THE GEOTEXTILE USED MOST MET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MOST BE AVAILABLE ON SITE. AOS (ASTM D4751) 30-100 SIEVE SIZE (0.60-0.15MM) FOR SI LT FILM 50-100 SIEVE SIZE (0.30-0.15MM) FOR OTHER FABRICS WATER PERMITTIVITY ASTM D441 0.02SECA-1 MINIMUM GRAB TENSI LE STRENCHT (ASTM 04632) 180 LBS. MIN. FOR EXTRA STRENGH FABRIC 100 LBS. MIN. FOR STANDARD STRENGHT FABRIC GRAB TENSILE ELONGATION(ASTM D4632)130% MAX. ULTRAVIOLATE RESISTANCE (ASTM D4355)170 % 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 4X4 TRENCH MAY NOT BE REDUCED AS LONG AS THE BOTTOM 8 INCHES OF THE SILT FENCE IS WELL BURIED AND SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT FENCE. 3. MAINTENANCE STANDARDS 3.1. ANY DAMAGE SHALL BE REPAIR IMMEDIATELY. 3.2. IF CONCENTRATED FLOES ARE EVIDENT UPHILL OD 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 REMOVED THE TRAP SEDIMENT. 3.4. SEDIMENT MOST 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. I Y ° STD. PLAN - 214.00 + ,nig + PUBLIC WORKS SILT FENCE " DEPARTMENT MARCH 2008 2:1 SLOPES I�ha�' ROCK MUST COMPLETELY COVER THE BOTTOM AND SIDES OF THE DITCH 6" MIN. 24" MIN. 2"-4" ROCK L = THE DISTANCE SUCH THAT POINTS A AND B ARE OF EQUAL ELEVATION N�k> e _ aa0 I(-1 1 1,111 1 NOTES 1. CONDITION OF USE 1.1. WERE CONCENTRATED RUNOFF FROM DISTURBED AREAS TO AND FROM 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 0.5 FEET SHALL BE REMOVED SO THAT THE CHANNEL IS RESTORED TO ITS ORIGINAL DESIGN CAPACITY. 2.2. THE CHECK DAMS SHALL BE EXAMINED 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. ti y o STD. PLAN - 217.40 + PUBLIC WORKS CHECK DAMS SPACING AND ° DEPARTMENT CROSS SECTIONS MARCH 2008 I, Call 2 Working Days Before You Dig 811 Utilities Underground Location Center (ID,MT,ND,OR,WA) SE 1/4 SECTION 14, TOWNSHIP 23 N. RANGE 5 E * Wo M. THE ENCLA VE A l BRIDL E RIDGE DRIVEWAYS SHALL BE PAVED TO THE EDGE OF R -O -W PRIOR TO INSTALLATION OF THE CONSTRUCTION ENTRANCE TO AVOID DAMAGING OF THE ROADWAY IT IS RECOMMENDED THAT THE ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD f INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT, AS PER CITY ROAD STANDARDS 4"-8" QUARRY SPALLS GEOTEXTILE 12" MIN. THICKNESS PROVIDE FULL WIDTH OF NOTES INGRESS/EGRESS AREA 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. GRAB TENSILE STREBNGTH (ASTM D4751) 200 PSI MIN. GRAB TENSILE ELONGATION (ASTM D4632) 300/6 MAX. MULLEN BURST STRENGTH (ASTM D3786 -80A) 400 PSI MIN. AOS (ASTM D4751) 20-45 (U.S. STANDARD SIEVE SIZE) 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. HOG FUEL (WOOD BASED MULCH) MAY BE SUBSTITUTED FOR OR COMBINED WITH QUARRY SPALLS IN ARES THAT WILL BOT 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. 2.2. FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE. 2.3. 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 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 THE WHEEL WASH. IF WASHING IS USED, IT SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK, AND WASHED 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 NECESSARY TO WASH THE STREETS, A SMALL SUMP MUST BE CONDUCTED. THE SEDIMENT WOULD THEN BE WASHED INTO THE SUMP WHERE IT CAN BE CONTROLLED AND DISCHARGED APPROPRIATELY. 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. I%JSTD. PLAN - 215.10 m PUBLIC WORKS STABILIZED DEPARTMENT CONSTRUCTION ENTRANCE zp'� MARCH 2008 EROSION CONTROL NOTES & SPECIFI CA TIONS 5' MAX. DRAINAGE GRATE TRIM Y GRATEFRAME m SEDIMENT AND DEBRIS ' d • OVERFLOW BYPASS D D ° BELOW INLET GRATE DEVICE FILTERED WATER A D D ,D s O D D D SECTION VIEW DRAINAGE GRATE - RECTANGULAR GRATE SHOWN RETRIEVAL SYSTEM (TYP.) Q BELOW INLET GRATE DEVICE OVERFLOW BYPASS (TYP.) ISOMETRIC VIEW NOTES 1. Size the Below Inlet Grate Device (BIGD) for the storm water structure It will service. 2. The BIGD shall have a built -In high-flow relief system (overflow bypass). 3. The retrieval system must allow removal of the BIGD without spilling the collected material. 4. Perform maintenance In accordance with Standard Specification 8-01.3(15). Y o STD. PIAN'- 218.30 PUBLIC WORKS CATCH BASIN FILTER + + DEPARTMENT N� MARCH 2008 1. THESE NOTES SHALL APPEAR FOR ALL PROJECTS - SITE IMPROVEMENTS, SURFACE WATER UTILITY, WASTEWATER UTILITY, WA TER UTILITY, AND 7RANSPORTA TION PLANS.• 2. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING MUST BE HELD WITH THE CITY OF RENTON, PUBLIC WORKS DESIGN ENGINEER. J. THE BOUNDARIES OF THE CLEAR/NG LIMITS AND AREAS OF VEGETA TION PRESERVATION AS PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY FLAGGED BY SURVEY TAPE OR FENCING IN THE FIELD PRIOR TO CONSTRUCTION /N ACCORDANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN MANUAL AND OBSERVED DURING CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR THE DURA77ON OF CONS7RUC77ON. 4. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONS7RUC710N AND MAINTAINED FOR THE DURA77ON OF THE PROJECT. ADDITIONAL MEASURES, SUCH ASCONSTRUC7FD WHEEL WASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN AND TRA CK OU T TO ROAD RIGH T OF WA Y DOES NO T OCCUR FOR THE DURA TION OF THE PROJEC T. 5. ALL REQUIRED SEDIMENTA TION/EROSION CONTROL FACIL177ES MUST BE CONSTRUCTED AND IN OPERA 77ON PRIOR TO LAND CLEARING AND/OR CONSTRUCTION TO PREVENT TTANSPORTATION OF SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES. ALL EROSION AND SEDIMENT FACILITIES SHALL BE MAINTAINEDM THAT CLEARING AN - IN A SATISFACTORY CONDITION UNTIL SUCH 71 E CLE G DOR CONSTRUCT70N IS COMPLETE AND POTENTIAL FOR ON SITE EROSION HAS PASSED. THE IMPLEMENTATION, MAINTENANCE, REPLACEMENT AND ADD177ONS TO EROSION/SEDIMENTATION CON7ROL SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMI TEE. 6. THE EROSION AND SEDIMENTA 77ON CONTROL SYSTEMS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPA 7ED SI TE CONDI TIONS A CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL CONDI TIONS DICTA TE, THE PERMI7FE SHALL AN TICIPA TE TNA T MORE EROSION AND SEDIMENTATION CON7ROL FACILITIES WILL BE NECESSARY TO ENSURE COMPLETE SIL TA TION CONTROL ON 7HE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGA TION AND RESPONSIBILITY OF THE PERMI TEE TO ADDRESS ANY NEW COND177ONS 7HA T MA Y BE CREA 7FD BY THE AC77W77ES AND TO PROVIDE ADDITIONAL FACILITIES, OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. 7. APPROVAL OF THIS PLAN IS FOR EROSION/SEDIMENTATION CONTROL ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION FACILITIES 8. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER IST TROUGH MARCH 307m) OR SEVEN DAYS DURING THE DRY SEASON (APRIL IST TOUGH SEPTEMBER 30) SHALL BE IMMEDIA TEL Y STABILIZED WITH THE APPROVED ESC COVER METHODS (E.G., SEEDING, MULCHING, PLASTIC COVERING, ETC.). 9. WET SEASON SEASONAL EROSION AND SEDIMENT CONTROL REQUIREMENTS APPLY TO ALL CONSTRUCTION SI TES CLEARING BETWEEN OCTOBER 1 AND MARCH 30 INCLUSIVE, UNLESS OTHERWISE APPROVED BY THE CITY THROUGH AN ADJUSTMENT PROCESS. 10. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN MANUAL. 11. ANY AREA NEEDING ESC MEASURES, NOT REQUIRING IMMEDIA TF A TTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7) DA Y5 12. THE ESC FA CIL/ 77ES ON INA C 77 VE S/ 7E'S SHALL BE INSPECTED AND MAINTAINED A MIN/MUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOW/NG A STORM EVENT. 13. A T NO 77ME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO ACCUMULA TE WI THIN A CA TCH BASIN. ALL CA TCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 14. DURING 7HE TIME PERIOD OF OCTOBER 1ST THROUGH MARCH 30m, ALL PROJECT DISTRIBU7FD SOIL AREAS GREATER, THAT ARE TO BE LEFT UN- WORKED FOR MORE THAN 12 HOURS, SHALL BE COVERED BY MULCH, SODDING OR PLASTIC COVERING. 15. ANY PERMANENT RETENTION/DETENTION FACILITY USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WI7H 77 -IE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUA TE STORAGE CAPACITY. IF THE PERMANENT FACILITY IS TO FUNC77ON UL TIMA TEL Y AS AN INFIL TRA T70N SYSTEM, THE 7FMPORARY FACILITY MUST BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILI TY. 16. PRIOR TO THE BEGINNING OF THE WET SEASON (OCT. 1), ALL DISTURBED AREAS SHALL BE REVIEWED TO /DEN 77FY WHICH ONES CAN BE SEEDED /N PREPARATION FOR THE WINTER RAINS 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 REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY OF RENTON FOR REVIEW. TREE PRO TEC TION MEASURES y 2:1 MAX. SLOPE m _-III LEVEL BOTTOM ,'MIN. _ o - _-_ �- -III 2' MIN. SWALE SPACING DEPENDS ON SLOPE GRADIENT NOTES 1. CONDITION OF USE 1.1. REQUIRED AT: 1.1.1. THE TOP OF ALL SLOPES IN EXCESS OF 3H:1V AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF. 1.1.2. AT INTERVALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFIED BELLOW. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. FOR SLOPES STEEPER THAN 2H:1 V WITH MORE THAN 10 FEET OF VERTICAL RELIEF, BENCHES MAY BE CONSTRUCTED OR CLOSER SPACED INTERCEPTOR SWALES MAY BE USED. THE DESIRE MEASURE MOST 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 FACILITY DO NOT REGULARLY RETAIN STORM RUNOFF, THE CAPACITY AND/OR FREQUENCY OF THE SWALES SHALL BE INCREASED. Y � STD. PLAN - 217.10 ,am * PUBLIC WORKS INTERCEPTOR SWALE DEPARTMENT MARCH 2008 ^G ,a Z 'I r S a � M AVERAGE SLOPE SLOPE PERCENT FLOWPATH LENGTH 20H:1V 3-5% 300 FEET (10 TO 20) H: IV MINIMUM 4"x4" TRENCH 200 FEET BACKFILL TRENCH WITH 10-25% NATIVE SOIL 2"x4' WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT z N NOTES 1. CONDITION 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 INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FLOW. ANY CONCENTRATED FLOW MOST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. THE GEOTEXTILE USED MOST MET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MOST BE AVAILABLE ON SITE. AOS (ASTM D4751) 30-100 SIEVE SIZE (0.60-0.15MM) FOR SI LT FILM 50-100 SIEVE SIZE (0.30-0.15MM) FOR OTHER FABRICS WATER PERMITTIVITY ASTM D441 0.02SECA-1 MINIMUM GRAB TENSI LE STRENCHT (ASTM 04632) 180 LBS. MIN. FOR EXTRA STRENGH FABRIC 100 LBS. MIN. FOR STANDARD STRENGHT FABRIC GRAB TENSILE ELONGATION(ASTM D4632)130% MAX. ULTRAVIOLATE RESISTANCE (ASTM D4355)170 % 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 4X4 TRENCH MAY NOT BE REDUCED AS LONG AS THE BOTTOM 8 INCHES OF THE SILT FENCE IS WELL BURIED AND SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT FENCE. 3. MAINTENANCE STANDARDS 3.1. ANY DAMAGE SHALL BE REPAIR IMMEDIATELY. 3.2. IF CONCENTRATED FLOES ARE EVIDENT UPHILL OD 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 REMOVED THE TRAP SEDIMENT. 3.4. SEDIMENT MOST 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. I Y ° STD. PLAN - 214.00 + ,nig + PUBLIC WORKS SILT FENCE " DEPARTMENT MARCH 2008 2:1 SLOPES I�ha�' ROCK MUST COMPLETELY COVER THE BOTTOM AND SIDES OF THE DITCH 6" MIN. 24" MIN. 2"-4" ROCK L = THE DISTANCE SUCH THAT POINTS A AND B ARE OF EQUAL ELEVATION N�k> e _ aa0 I(-1 1 1,111 1 NOTES 1. CONDITION OF USE 1.1. WERE CONCENTRATED RUNOFF FROM DISTURBED AREAS TO AND FROM 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 0.5 FEET SHALL BE REMOVED SO THAT THE CHANNEL IS RESTORED TO ITS ORIGINAL DESIGN CAPACITY. 2.2. THE CHECK DAMS SHALL BE EXAMINED 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. ti y o STD. PLAN - 217.40 + PUBLIC WORKS CHECK DAMS SPACING AND ° DEPARTMENT CROSS SECTIONS MARCH 2008 I, Call 2 Working Days Before You Dig 811 Utilities Underground Location Center (ID,MT,ND,OR,WA) SE 1/4 SECTION 14, TOWNSHIP 23 N. RANGE 5 E * Wo M. THE ENCLA VE A l BRIDL E RIDGE DRIVEWAYS SHALL BE PAVED TO THE EDGE OF R -O -W PRIOR TO INSTALLATION OF THE CONSTRUCTION ENTRANCE TO AVOID DAMAGING OF THE ROADWAY IT IS RECOMMENDED THAT THE ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD f INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT, AS PER CITY ROAD STANDARDS 4"-8" QUARRY SPALLS GEOTEXTILE 12" MIN. THICKNESS PROVIDE FULL WIDTH OF NOTES INGRESS/EGRESS AREA 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. GRAB TENSILE STREBNGTH (ASTM D4751) 200 PSI MIN. GRAB TENSILE ELONGATION (ASTM D4632) 300/6 MAX. MULLEN BURST STRENGTH (ASTM D3786 -80A) 400 PSI MIN. AOS (ASTM D4751) 20-45 (U.S. STANDARD SIEVE SIZE) 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. HOG FUEL (WOOD BASED MULCH) MAY BE SUBSTITUTED FOR OR COMBINED WITH QUARRY SPALLS IN ARES THAT WILL BOT 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. 2.2. FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE. 2.3. 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 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 THE WHEEL WASH. IF WASHING IS USED, IT SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK, AND WASHED 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 NECESSARY TO WASH THE STREETS, A SMALL SUMP MUST BE CONDUCTED. THE SEDIMENT WOULD THEN BE WASHED INTO THE SUMP WHERE IT CAN BE CONTROLLED AND DISCHARGED APPROPRIATELY. 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. I%JSTD. PLAN - 215.10 m PUBLIC WORKS STABILIZED DEPARTMENT CONSTRUCTION ENTRANCE zp'� MARCH 2008 EROSION CONTROL NOTES & SPECIFI CA TIONS 5' MAX. DRAINAGE GRATE TRIM Y GRATEFRAME m SEDIMENT AND DEBRIS ' d • OVERFLOW BYPASS D D ° BELOW INLET GRATE DEVICE FILTERED WATER A D D ,D s O D D D SECTION VIEW DRAINAGE GRATE - RECTANGULAR GRATE SHOWN RETRIEVAL SYSTEM (TYP.) Q BELOW INLET GRATE DEVICE OVERFLOW BYPASS (TYP.) ISOMETRIC VIEW NOTES 1. Size the Below Inlet Grate Device (BIGD) for the storm water structure It will service. 2. The BIGD shall have a built -In high-flow relief system (overflow bypass). 3. The retrieval system must allow removal of the BIGD without spilling the collected material. 4. Perform maintenance In accordance with Standard Specification 8-01.3(15). Y o STD. PIAN'- 218.30 PUBLIC WORKS CATCH BASIN FILTER + + DEPARTMENT N� MARCH 2008 1. THESE NOTES SHALL APPEAR FOR ALL PROJECTS - SITE IMPROVEMENTS, SURFACE WATER UTILITY, WASTEWATER UTILITY, WA TER UTILITY, AND 7RANSPORTA TION PLANS.• 2. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING MUST BE HELD WITH THE CITY OF RENTON, PUBLIC WORKS DESIGN ENGINEER. J. THE BOUNDARIES OF THE CLEAR/NG LIMITS AND AREAS OF VEGETA TION PRESERVATION AS PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY FLAGGED BY SURVEY TAPE OR FENCING IN THE FIELD PRIOR TO CONSTRUCTION /N ACCORDANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN MANUAL AND OBSERVED DURING CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR THE DURA77ON OF CONS7RUC77ON. 4. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONS7RUC710N AND MAINTAINED FOR THE DURA77ON OF THE PROJECT. ADDITIONAL MEASURES, SUCH ASCONSTRUC7FD WHEEL WASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN AND TRA CK OU T TO ROAD RIGH T OF WA Y DOES NO T OCCUR FOR THE DURA TION OF THE PROJEC T. 5. ALL REQUIRED SEDIMENTA TION/EROSION CONTROL FACIL177ES MUST BE CONSTRUCTED AND IN OPERA 77ON PRIOR TO LAND CLEARING AND/OR CONSTRUCTION TO PREVENT TTANSPORTATION OF SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES. ALL EROSION AND SEDIMENT FACILITIES SHALL BE MAINTAINEDM THAT CLEARING AN - IN A SATISFACTORY CONDITION UNTIL SUCH 71 E CLE G DOR CONSTRUCT70N IS COMPLETE AND POTENTIAL FOR ON SITE EROSION HAS PASSED. THE IMPLEMENTATION, MAINTENANCE, REPLACEMENT AND ADD177ONS TO EROSION/SEDIMENTATION CON7ROL SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMI TEE. 6. THE EROSION AND SEDIMENTA 77ON CONTROL SYSTEMS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPA 7ED SI TE CONDI TIONS A CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL CONDI TIONS DICTA TE, THE PERMI7FE SHALL AN TICIPA TE TNA T MORE EROSION AND SEDIMENTATION CON7ROL FACILITIES WILL BE NECESSARY TO ENSURE COMPLETE SIL TA TION CONTROL ON 7HE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGA TION AND RESPONSIBILITY OF THE PERMI TEE TO ADDRESS ANY NEW COND177ONS 7HA T MA Y BE CREA 7FD BY THE AC77W77ES AND TO PROVIDE ADDITIONAL FACILITIES, OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. 7. APPROVAL OF THIS PLAN IS FOR EROSION/SEDIMENTATION CONTROL ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION FACILITIES 8. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER IST TROUGH MARCH 307m) OR SEVEN DAYS DURING THE DRY SEASON (APRIL IST TOUGH SEPTEMBER 30) SHALL BE IMMEDIA TEL Y STABILIZED WITH THE APPROVED ESC COVER METHODS (E.G., SEEDING, MULCHING, PLASTIC COVERING, ETC.). 9. WET SEASON SEASONAL EROSION AND SEDIMENT CONTROL REQUIREMENTS APPLY TO ALL CONSTRUCTION SI TES CLEARING BETWEEN OCTOBER 1 AND MARCH 30 INCLUSIVE, UNLESS OTHERWISE APPROVED BY THE CITY THROUGH AN ADJUSTMENT PROCESS. 10. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN MANUAL. 11. ANY AREA NEEDING ESC MEASURES, NOT REQUIRING IMMEDIA TF A TTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7) DA Y5 12. THE ESC FA CIL/ 77ES ON INA C 77 VE S/ 7E'S SHALL BE INSPECTED AND MAINTAINED A MIN/MUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOW/NG A STORM EVENT. 13. A T NO 77ME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO ACCUMULA TE WI THIN A CA TCH BASIN. ALL CA TCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 14. DURING 7HE TIME PERIOD OF OCTOBER 1ST THROUGH MARCH 30m, ALL PROJECT DISTRIBU7FD SOIL AREAS GREATER, THAT ARE TO BE LEFT UN- WORKED FOR MORE THAN 12 HOURS, SHALL BE COVERED BY MULCH, SODDING OR PLASTIC COVERING. 15. ANY PERMANENT RETENTION/DETENTION FACILITY USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WI7H 77 -IE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUA TE STORAGE CAPACITY. IF THE PERMANENT FACILITY IS TO FUNC77ON UL TIMA TEL Y AS AN INFIL TRA T70N SYSTEM, THE 7FMPORARY FACILITY MUST BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILI TY. 16. PRIOR TO THE BEGINNING OF THE WET SEASON (OCT. 1), ALL DISTURBED AREAS SHALL BE REVIEWED TO /DEN 77FY WHICH ONES CAN BE SEEDED /N PREPARATION FOR THE WINTER RAINS 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 REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY OF RENTON FOR REVIEW. TREE PRO TEC TION MEASURES y 2:1 MAX. SLOPE m _-III LEVEL BOTTOM ,'MIN. _ o - _-_ �- -III 2' MIN. SWALE SPACING DEPENDS ON SLOPE GRADIENT NOTES 1. CONDITION OF USE 1.1. REQUIRED AT: 1.1.1. THE TOP OF ALL SLOPES IN EXCESS OF 3H:1V AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF. 1.1.2. AT INTERVALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFIED BELLOW. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. FOR SLOPES STEEPER THAN 2H:1 V WITH MORE THAN 10 FEET OF VERTICAL RELIEF, BENCHES MAY BE CONSTRUCTED OR CLOSER SPACED INTERCEPTOR SWALES MAY BE USED. THE DESIRE MEASURE MOST 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 FACILITY DO NOT REGULARLY RETAIN STORM RUNOFF, THE CAPACITY AND/OR FREQUENCY OF THE SWALES SHALL BE INCREASED. Y � STD. PLAN - 217.10 ,am * PUBLIC WORKS INTERCEPTOR SWALE DEPARTMENT MARCH 2008 ^G ,a Z 'I r S a � M AVERAGE SLOPE SLOPE PERCENT FLOWPATH LENGTH 20H:1V 3-5% 300 FEET (10 TO 20) H: IV 5-10% 200 FEET (4 TO 10)H: 1V 10-25% 100 FEET (2 TO 4)H:1V 25-50% 50 FEET a. CONSTRUCTION STORAGE PROHIBITED: THE APPLICANT MAY NOT FILL, EXCAVATE, STACK OR STORE ANY EQUIPMENT, DISPOSE OF ANY MATERIALS, SUPPLIES OR FLUIDS, OPERATE ANY EQUIPMENT, INSTALL IMPERVIOUS SURFACES, OR COMPACT THE EARTH IN ANY WAY WITHIN THE AREA DEFINED BY THE DRIP LINE OF ANY TREE TO BE RETAINED. b. FENCED PROTECTION AREA REQUIRED: THE APPLICANT SHALL ERECT AND MAINTAIN SIX FOOT (6) HIGH CHAIN LINK TEMPORARY CONSTRUCTION FENCING AROUND THE DRIP LINES OF ALL RETAINED TREES, OR ALONG THE PER/METER OF A STAND OF RETAINED TREES PLACARDS SHALL BE PLACED ON FENCING EVERY FIFTY FEET (50) INDICATING THE WORDS, '9110 TRESPASSING - PROTECTED TREES" OR ON EACH SIDE OF THE FENCING IF LESS THAN FIFTY FEET (50). SITE ACCESS TO INDIVIDUALLY PROTECTED TREES OR GROUPS OF TREES SHALL BE FENCED AND SIGNED. INDIVIDUAL TREES SHALL BE FENCED ON FOUR (4) SIDES IN ADDITION, THE APPLICANT SHALL PROVIDE SUPERVISION WHENEVER EQUIPMENT OR TRUCKS ARE MOVING NEAR TREES. C. PROTECTION FROM GRADE CHANGES. IF THE GRADE LEVEL ADJOIN/NG TO A TREE TO BE RETAINED IS TO BE RA/SED, THE APPLICANT SHALL CONSTRUCT A DRY ROCK WALL OR ROCK WELL AROUND THE TREE. THE DIAMETER OF THIS WALL OR WELL MUST BE EQUAL TO THE TREE'S DRIP LINE. d. IMPERVIOUS SURFACES PROHIBITED WI THIN THE DRIP LINE. • THE APPLICANT MAY NOT INSTALL IMPERVIOUS SURFACE MATERIAL WI THIN THE AREA DEFINED BY THE DRIP LINE OF ANY TREE TO BE RETAINED. e. RESTRICTIONS ON GRADING WITHIN THE DRIP LINES OF RETAINED TREES. THE GRADE LEVEL AROUND ANY TREE TO BE RETAINED MAY NOT BE LOWERED W/TH/N THE GREATER OF THE FOLLOWING AREAS: (l) THE AREA DEFINED BY THE DRIP LINE OF THE TREE, OR (ll) AN AREA AROUND THE TREE EQUAL TO ONE AND ONE-HALF FEET (1-1/2) IN DIAMETER FOR EACH ONE INCH OF TREE CALIPER. THE REVIEWING OFFICIAL MAY REQUIRE A LARGER TREE PROTECTION ZONE BASED ON TREE SIZE, SPECIES, SOIL, OR OTHER CONDITIONS f. MULCH LAYER REQUIRED: A AR Wl THIN THE REQUIRED FENCING SHALL E COVERED COMPLETELY AND EVENLY Wl TH A MIN/MUM F ALL EAS E EQ EDB 0 THREE INCHES (3) OF BARK MULCH PRIOR TO INSTALLATION OF THE PROTECTIVE FENCING. EXCEPTIONS MAY BE APPROVED BY THE REVIEWING OFFICIAL IF THE MULCH WILL ADVERSELY AFFECT PROTECTED GROUND COVER PLANTS g. MONITORING REQUIRED DURING CONSTRUCTION: THE APPLICANT SHALL RETAIN A PROFESSIONAL ARBOR/ST OR OTHER QUALIFIED PROFESSIONAL TO PRUNE BRANCHES AND ROOTS, FERTILIZE, AND WATER AS APPROPRIATE FOR ANY TREES AND GROUND COVER WHICH ARE TO BE RETAINED. NO TES: 1. 6 -FT. HIGH TEMPORARY CHAIN LINK FENCE SHALL BE PLACED AT THE DR/PLINE OF THE TREE TO BE SAVED. FENCE SHALL COMPLETELY ENCIRCLE THE TREE(S). INSTALL FENCE POSTS USING PIER BLOCKS ONLY. AVOID DRIVING POSTS OR STAKES INTO MAJOR ROOTS 2. FOR ROOTS OVER 1 -IN DIA. THAT ARE DAMAGED DURING CONSTRUCTION, MAKE A CLEAN, STRAIGHT CUT TO REMOVE THE DAMAGED PORTION. ALL EXPOSED ROOTS SHALL BE TEMPORARILY COVERED WITH DAMP BURLAP TO PREVENT DRYING, AND SHALL BE COVERED WITH SOIL AS SOON AS POSSIBLE. J. WORK WI THIN PRO TEC TION FENCE SHALL BE DONE MANUALLY. NO STOCKPILING OF MATERIALS, VEHICULAR TRAFFIC, OR STORAGE OF EQUIPMENT OR MACHINERY SHALL BE ALLOWED WITHIN THE LIMIT OF THE FENCING. TREE PRO TEC TION DETAIL I _ DRIPLINE _ R-383801 COMMENDED FOR APPOVAL Ci L BY Date: BY: Date: BY: Date: BY: Date: N IS MAJ 02.13.15 M,a,' SURVEYED: SCALE: THE ENCLAVE AT BRIDLE RIDGE `S` VERTICAL: NAVD 1988 MAJ c �C HORIZONTAL: NAD 1983/1991 4� CITY 0 05. 9. 5 � DESIGNED: /"M•� NOTED MAJ 07.13.15 MAJ �'' RENTON MAJ 07.23.15 MAJ DRAWN: ILTESC NOTES AND DETAILS Y� ONE INCH CHECKED: AT FULL SCALE Planning/Building/Public Works Dept. �/ MAJ IF NOT ONE INCH BY DATE A P P R APPROVE SCALE ACCORDINGLY U14005368 MIXT �NE! PACE: C7 �«. � 0,.29 c� : Y., av-� DRS PROJECT N0. 13117 IAI-ININININTA� i 17 7) n. I � M d m rn � 1 W �rn ' m . e � JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, OR EOUNALENT TO ATTACH