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Home My WebLink AboutR-373504N (O co Lo C) O r EROSION 1. 2. 3. 4. 5. CONTROL NOTES THESE NOTES SHALL APPEAR FOR PROJECTS - SITE IMPROVEMENTS, SURFACE WATER UTILITY, WASTEWATER UTILITY, WATER UTILITY, AND TRANSPORTATION PLANS: BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE - CONSTRUCTION MEETING MUST BE HELD WITH THE CITY OF RENTON, PUBLIC WORKS DESIGN ENGINEER. THE BOUNDARIES OF THE CLEARING LIMITS AND AREAS OF VEGETATION PRESERVATION AS PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY FLAGGED BY SURVEY TAPE OR FENCING IN THE FIELD PRIOR TO CONSTRUCTION IN ACCORDANCE WITH APPENDIX "D" OF THE SURFACE WATER DESIGN MANUAL AND OBSERVED DURING CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMTS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT /ESC SUPERVISOR FOR THE DURATION OF CONSTRUCTION. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINING OF CONSTRUCTION AND MAINTAINED 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 CLEAN AND TRACK OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. ALL REQUIRED SEDIMENTATION /EROSION CONTROL FACILITIES MUST BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND /OR CONSTRUCTION TO PREVENT TRANSPORTATION OF (V Y 5. FILTER FABRIC FENCES SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES. ALL EROSION PROVIDE 3/4" - 1.5" AND SEDIMENT FACILITIES SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME 12" SERVED THEIR USEFUL THAT CLEARING AND /OR CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ON -SITE EROSION HAS WASHED GRAVEL BACKTH PASSED. THE IMPLEMENTATION, MAINTENANCE, REPLACEMENT AND ADDITIONS TO EROSION/ X UPSLOPE AREA HAS BEEN SEDIMENTATION CONTROL SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMIT-FEE. Z 6. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS DEPICTED ON THIS DRAWING ARE 0 INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. AS (n CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL CONITIONS DICTATE, THE PERMITEE J SHALL BE INSPECTED IMMEDIATELY SHALL ANTICIPATE THAT MORE EROSION AND SEDIMENTATION CONTROL FACILITIES WILL BE j NECESSARY TO INSURE COMPLETE SILTATION CONTROL ON THE PROPSED SITE. DURING THE AFTER EACH RAINFALL AND AT LEAST DAILY DURING COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE PERMITEE ots TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY THE ACTIVITIES AND TO PROVIDE Y ADDITIONAL FACILITIES, OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY BE NEEDED, TO IMMEDIATELY. PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECIEVING DRAINAGE SYSTEM. Cc BARRIER Q 7. APPROVAL OF THIS PLAN IS FOR EROSION /SEDIMENTATION CONTROL ONLY. IT DOES NOT a FILTER FABRIC CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION FACILITIES. Z O 8. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER 1ST - MARCH 30TH) OR (/) SEVEN DAYS DURING THE DRY SEASON (APRIL 1ST - SEPTEMBER 30TH) SHALL BE J IMMEDIATELY STABILIZED WITH THE APPROVED ERC COVER METHODS (e.g. SEEDING, > MULCHING, PLASTIC COVERING, ETC.). 9. WET SEASON SEASONAL EROSION AND SEDIMENT CONTROL REQUIREMENTS APPLY TO ALL CONSTRUCTION SITES CLEARING BEWTEEN 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 ERC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7) DAYS. 12. THE ERC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOWING A STORM EVENT. 13. 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 CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 14. DURING THE TIME PERIOD OF OCTOBER 1ST - MARCH 30TH, ALL PROJECT DISTURBED SOIL AREAS, THAT ARE TO BE LEFT UN- WORKED FOR MORE THAN 12 HOURS, SHALL BE COVERED BY MULCH, SODDING, OR PLASTIC COVERING. FILTER FABRIC MATERIAL 60" WIDE ROLLS. USE STAPLES OR WIRE RINGS TO ATTACH FABRIC TO WIRE. 2" BY 2" 14 GA. WIRE FABRIC OR EQUIV. II I 2' -6" I I I II I 5' -0" JIB BURY BOTTOM OF FABRIC _41-_________Ak MATERIAL IN 8" BY 12" TRENCH I F 6 MAX --� u u 15. ANY PERMANENT RETENTION /DETENTION FACILITY USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE PERMANENT FACILITY IS TO FUNCTION ULTIMATELY AS AN INFILTRATION SYSTEM, 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. 16. PRIOR TO THE BEGINNING OF THE WET SEASON (OCT. 1), ALL DISTURBED AREAS SHALL BE REVIEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN 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. NOTES. 1. FOR SHEET RUNOFF OR FOLLOWING DISCHARGE FROM A SEDIMENT TRAP OR POND. 2. MAXIMUM SLOPE STEEPNESS PERPENDICULAR TO FENCE LINE IS 1:1. 3. MAXIMUM SHEET OR OVERLAND FLOW PATH LENGTH TO THE FENCE OF 100 FT. RISER PIPE (PRINCIPAL SPILLWAY) OPEN AT TOP WITH TRASH RACK PER FIG. 4.4.4\ SPILLWAY ' MIN. WIDTH DEWATERING DEVICE 4. IF 50% OR LESS OF THE SOIL, BY WEIGHT, IS FINE PARTICLES 'S: (SEE RISER DETAIL) IT 6" FILTER FABRIC MATERIAL SMALLER THAN THE U.S. STANDARD SIEVE NO. 200, THE EOS -II SHOULD BE EQUAL TO OR SMALLER THAN THE SIEVE SIZE II 2" BY 2" BY 14 GA. WIRE THAT 85% OF THE SOIL CAN PASS THROUGH. _I ---- - - - - -- - -- FABRIC OF EQUIV. 5. THE TRENCH SHALL BE BACKFILLED WITH 3/4" MINIMUM 2' -0' DIAMETER WASHED GRAVEL. IJ II =II =I I— —I IJ I- 11I -11 OFFE ENGINEERSPlo 13932 SOUTHEAST 159TH PLACE RENTON, WASHINGTON 98058 Z PHONE: 425-260-3412 PoF' C s oG\r CONTACT: DARRELL OFFE, P.E. 'sldNtii �� " NO. REVISION BY DATE APPR WIRE - BACKED SILT FENCE,' STAKED HAYBALES WRAPPED WITH FILTER FABRIC, OR EQUIVALENT DIVIDER D.L OFFE, P.E. o D.L. OFFS, P.E. AT ML SGIEML SGIE s rar arE ra, Mxaimxxr DEWATERING ORIFICE EMBANKMENT COMPACTED 95 %. PERVIOUS MATERIALS SUCH AS GRAVEL OR CLEAN SAND SHALL NOT BE USED. 1 j DISCHARGE TO STABILIZED CONCRETE BASE CONVEYANCE, OUTLET OR (SEE RISER DETAIL) LEVEL SPREADER TEMP. POND CONTROL CITY OF RENTON DATUM Planning /Building /Public Works Dept. cD R- 313504 RECOMMEN D F R APPROVAL By Date, 01 I BYI Date, •(2• I Byl Date, By, Date, WILSON PARK & WILSON PARK 2 ROBERT WILSON 720 SOUTH 55th STREET GRADING /EROSION DETAILS & NOTES Ce 07/15/2013 I �y 0 0 5. FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE PROVIDE 3/4" - 1.5" 12" SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE WASHED GRAVEL BACKTH X UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED. IN TRENCH AND ON BOTH SIDES I OF FILTER FENCE FABRIC ON —{ 8" MIN. 6. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY THE SURFACE. AFTER EACH RAINFALL AND AT LEAST DAILY DURING 2" BY 4" WOOD POST PROLONGED RAINFALL. ANY REPAIRS SHALL BE MADE ALT: STEEL FENCE POSTS. IMMEDIATELY. BRUSH BARRIER NTS 066 FILTER FABRIC FENCE DETAIL OFFE ENGINEERSPlo 13932 SOUTHEAST 159TH PLACE RENTON, WASHINGTON 98058 Z PHONE: 425-260-3412 PoF' C s oG\r CONTACT: DARRELL OFFE, P.E. 'sldNtii �� " NO. REVISION BY DATE APPR WIRE - BACKED SILT FENCE,' STAKED HAYBALES WRAPPED WITH FILTER FABRIC, OR EQUIVALENT DIVIDER D.L OFFE, P.E. o D.L. OFFS, P.E. AT ML SGIEML SGIE s rar arE ra, Mxaimxxr DEWATERING ORIFICE EMBANKMENT COMPACTED 95 %. PERVIOUS MATERIALS SUCH AS GRAVEL OR CLEAN SAND SHALL NOT BE USED. 1 j DISCHARGE TO STABILIZED CONCRETE BASE CONVEYANCE, OUTLET OR (SEE RISER DETAIL) LEVEL SPREADER TEMP. POND CONTROL CITY OF RENTON DATUM Planning /Building /Public Works Dept. cD R- 313504 RECOMMEN D F R APPROVAL By Date, 01 I BYI Date, •(2• I Byl Date, By, Date, WILSON PARK & WILSON PARK 2 ROBERT WILSON 720 SOUTH 55th STREET GRADING /EROSION DETAILS & NOTES Ce 07/15/2013 I �y 0 0 �o> Nz A 0 °z X W N I