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HomeMy WebLinkAboutR-380807LAJ Q z w 0 W Z W J EROSION /SEDIMENTATION CONTROL NOTES 1. THESE NOTES SHALL APPEAR FOR ALL PROJECTS -SITE IMPROVEMENTS, SURFACE WATER UTILITY, WASTEWATER UTILITY, WATER UTILITY, AND TRANSPORTATION 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. CONDITIONS FOR WET SEASON CONSTRUCTION 1. ANY CONSTRUCTION THAT WILL RESULT IN DISTURBED AREAS ON OR WITHIN A CRITICAL AREA OR ASSOCIATED BUFFER, SHALL BE SUBJECT TO THE "CRITICAL AREA RESTRICTIONS CONTAINED IN THE ESC STANDARDS. THESE PROVISIONS INCLUDE PHASING THE PROJECT WHENEVER POSSIBLE SO THAT CONSTRUCTION IN THESE AREAS IS LIMITED TO THE DRY SEASON. 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 THROUGH MARCH 30TH, ALL PROJECT DISTRIBUTED 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 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 3. THEBOUNDARIESOfTHECLEARINGUMITSANDAREAS OFVEGETATIONPRESERVATIONAS PRESCRIBED BE REVIEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN PREPARATION FOR THE ON THE PLAN(S) SHALL BE CLEARLY FLAGGED BY SURVEY TAPE OR FENCING IN THE 2. DURING CONSTRUCTION, ESC PLANS SHALL BE REVISED AS NECESSARY BY THE ESC ONE WEEK OF THE BEGINNING OF FIELD PRIOR TO CONSTRUCTION IN ACCORDANCE WITH APPENDIX D OF THE SURFACE AREAS TO BE SEEDED AND SUPERVISOR OR AS DIRECTED BY THE CITY TO ADDRESS CHANGING SITE TO REMAIN UNCOVERED SHALL BE SUBMITTED WATER DESIGN MANUAL AND OBSERVED DURING CONSTRUCTION. DURING THE FOR REVIEW. CONDITIONS, UNEXPECTED STORM EVENTS, OR NON - COMPLIANCE WITH THE ESC 4 MYLAIR StlBMIlTTAL CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE 1t, A114 PERFORMANCE CRITERIA IN SECTION D.4.1 (P. D -69). IF NON - COMPLIANCE WITH �I� v/ REVISION BY DATE THE ESC PERFORMANCE CRITERIA OCCURS, THE PLAN DUST BE UPDATED WITHIN 48 PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE HOURS (FAILURE TO DO SO COULD RESULT IN A "STOP WORK" ORDER AS Z CONJUNCTION WITH SEEDING. APPLICANT /ESCSUPERVISOR FOR THE DURATION OF CONSTRUCTION. NO GROWTH INHIBITING DETERMINED BY THE CITY INSPECTOR) OF INSPECTIONS OR INVESTIGATIONS. J4. CELLULOSE FACTORS PER 1000 SF OR IMPLEMENTATION OF THE ONSiTE CHANGES MUST OCCUR WITHIN 5 DAYS. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF UNLESS THE APPLICATION RATE IS AT LEAST a ACRE CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL FIBERS CAN BE EFFECTIVE AT LOWER MEASURES, SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY BE 3. ALL ESC MEASURES SHALL BE MAINTAINED AND REVIEWED ON A REGULAR BASIS AS S REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN AND TRACK OUT TO PRESCRIBED IN THE MAINTENANCE REQUIREMENTS FOR EACH BMP AND IN THIS � NO VISIBLE WATER OR ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. MORE EFFECTIVE CONTROL CAN BE OBTAINED BY SECTION. THE ESC SUPERVISOR SHALL REVIEW THE SITE AT LEAST WEEKLY DURING DUST DURING APPROX. 100 TONS INCREASING THICKNESS TO 3". EXCELLENT THE WET SEASON, AND WITHIN 24 HOURS OF SIGNIFICANT STORMS. IN GENERAL, A O 5. ALL REQUIRED SEDIMENTATION /EROSION CONTROL FACILITIES MUST BE CONSTRUCTED AND PURCHASED FROM SIGNIFICANT STORM IS ONE WITH MORE THAN 0.5 INCHES OF RAIN IN 24 HOURS OR LESS. THE CITY MAY REQUIRE THAT A WRITTEN RECORD OF THESE REVIEWS BE KEPT LANDSCAPING BECAUSE IT CAN BE DIRECTLY IN OPERATION PRIOR TO LAND CLEARING AND/OR CONSTRUCTION TO PREVENT ON SITE WITH COPIES SUBMITTED TO THE CITY WITHIN 48 HOURS. '^ WASTE HANDLING TRANSPORTATION OF SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT AMENDMENT. SOURCES FOR COMPOST ARE v� PROPERTIES. ALL EROSION AND SEDIMENT FACILITIES SHALL BE MAINTAINED IN A 06 FOR MARKETING RECYCLABLE MATERIALS AT SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING AND /OR CONSTRUCTION IS (206) 296 -4439. CHIPPED SITE COMPLETE AND POTENTIAL FOR ON -SITE EROSION HAS PASSED. THE IMPLEMENTATION, WET SEASON PROVISIONS Q VEGETATION MAINTENANCE, REPLACEMENT AND ADDITIONS TO EROSION /SEDIMENTATION CONTROL THICKNESS DEBRIS FROM CLEARING AND GRUBBING, AND IT Q SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMITEE. NOTE: THE FOLLOWING MEASURES ARE REQUIRED FOR CONSTRUCTION DURING THE WET O BURNING. GENERALLY, IT SHOULD NOT BE USED SEASON (OCTOBER 1 -APRIL 30) IN ADDITION TO THE STANDARD TESC MEASURES. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS DEPICTED ON THIS DRAWING ARE ITS TENDENCY TO BE TRANSPORTED BY RUNOFF. INTENDED TO BE MINIMUM REQUIREMENT'S TO MEET ANTICIPATED SITE CONDITIONS. AS 1. THE ALLOWED TIME THAT A DISTURBED AREA MAY REMAIN UNWORKED WITHOUT COVER IT IS NOT RECOMMENDED WITHIN 200 FEET OF CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE MEASURES IS REDUCED TO TWO CONSECUTIVE WORKING DAYS, RATHER THAN SEVEN LL PERMITEE SHALL ANTICIPATE THAT MORE EROSION AND SEDIMENTATION CONTROL FACILITIES SHORTLY AFTER MULCH, THE DECOMPOSITION OF (SECTION D.3.2). Q WILL BE NECESSARYTO ENSURE COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. 2. STOCKPILES AND STEEP CUT AND FILL SLOPES ARE TO BE PROTECTED IF UNWORKED w IMPORTANT TO GRASS ESTABLISHMENT. DURING THE COURSE OF CONSTRUCTION, R SHALL BE THE OBLIGATION AND FOR MORE THAN 12 HOURS (SECTION D.3.2). J RESPONSIBILITY OF THE PERMITEE TO ADDRESS ANY NEW CONDITIONS THAT MAY BE 3. COVER MATERIALS SUFFICIENT TO COVER ALL DISTURBED AREAS SHALL BE STOCKPILED Z CREATED BY THE ACTMTIES AND TO PROVIDE ADDITIONAL FACILITIES, OVER AND ABOVE ON SITE (SECTION D.3.2). MINIMUM REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT PROPERTIES AND W WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. 4. ALL AREAS THAT ARE TO BE UNWORKED DURING THE WET SEASON SHALL BE SEEDED W WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON (SECTION D.3.2.5). 7. APPROVAL OF THIS PLAN IS FOR EROSION /SEDI M ENTATI ON CONTROL ONLY. IT DOES NOT 5. MULCH IS REQUIRED TO PROTECT ALL SEEDED AREAS (SECTION D.3.2.1). r� CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, v RESTRLCTORS, CHANNELS, OR RETENTION FACILITIES. 6. FIFTY LINEAR FEET OF SILT FENCE (AND THE NECESSARY STAKES) PER ACRE OF DISTURBANCE MUST BE STOCKPILED ON SITE (SECTION D.3.3.1). 8. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE 7. CONSTRUCTION ROAD AND PARKING LOT STABILIZATION ARE REQUIRED FOR ALL SITES DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER 1ST TROUGH MARCH UNLESS THE SITE IS UNDERLAIN BY COARSE- GRAINED SOIL (SECTION D.3.4.2). 30TH) OR SEVEN DAYS DURING THE DRY SEASON (APRIL 1ST TOUGH SEPTEMBER 30) SHALL BE IMMEDIATELY STABILIZED WfTH THE APPROVED ESC COVER METHODS (E.G., 8. SEDIMENT RETENTION IS REQUIRED UNLESS NO OFFSITE DISCHARGE IS ANTICIPATED FOR SEEDING, MULCHING, PLASTIC COVERING, ETC.). THE SPECIFIED DESIGN FLOW (SECTION D.3.5). 9. SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFFSITE DISCHARGE IS 9. WET SEASON SEASONAL EROSION AND SEDIMENT CONTROL REQUIREMENTS APPLY TO ALL ANTICIPATED FOR THE SPECIFIED DESIGN FLOW (SECTION D.3.6). CONSTRUCTION SITES CLEARING BETWEEN OCTOBER 1 AND MARCH 30 INCLUSIVE, UNLESS gyp, PHASING AND MORE CONSERVATIVE BMPS MUST BE EVALUATED FOR CONSTRUCTION OTHERWISE APPROVED BY THE CITY THROUGH AN ADJUSTMENT PROCESS. ACTIVITY NEAR THE SURFACE WATERS (SECTION D.5.3). 10. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX D OF THE 11. ANY RUNOFF GENERATED BY DEWATERING MAY BE REQUIRED TO DISCHARGE TO THE SURFACE WATER DESIGN MANUAL. SANITARY SEWER (WITH APPROPRIATE DISCHARGE AUTHORIZATION), PORTABLE SAND FILTER SYSTEMS, OR HOLDING TANKS. 11. ANY AREA NEEDING ESC MEASURES, NOT REQULRINQ IMMEDIATE ATTENTION, SHALL BE 12. THE FREQUENCY OF MAINTENANCE REVIEW INCREASES FROM MONTHLY TO WEEKLY ADDRESSED WITHIN SEVEN (7) DAYS. (SECTION D.5.4). 12. THE ESC 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 THROUGH MARCH 30TH, ALL PROJECT DISTRIBUTED 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 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. 2 -3 TONS PER ACRE 4 MYLAIR StlBMIlTTAL cr z workr,o Days error You CV 811 WArAna;wN IL 7 r STRUCTURAL NOTES 1. THESE PLANS ARE APPROVED FOR STANDARD ROAD AND DRAINAGE IMPROVEMENTS ONLY. PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS, AND RETAINING WALLS REQUIRE A SEPARATE REVIEW AND APPROVAL BY THE CITY PRIOR TO CONSTRUCTION. 2. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS RETAINING WALLS. ALL ROCKERIES IN CITY ROAD RIGHT -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROCKERIES OUTSIDE OF ROAD RIGHT -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE. 0 CONSULTING ENGINEERS L L C mm 40 Ot Avenue South 10 ( I I Suite EARLY CLE*AM & a� LfflM Federal Way, WA 98003 E FEDEJML INY (253) iJt -1113 www.esmcivii.com (425) 297 -99M Civil Engineering Lond Surveying Land Planning Public Works I Project Monogelnent I Landscape Architecture ESM JOB #258 -044 -013 IL 7 r STRUCTURAL NOTES 1. THESE PLANS ARE APPROVED FOR STANDARD ROAD AND DRAINAGE IMPROVEMENTS ONLY. PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS, AND RETAINING WALLS REQUIRE A SEPARATE REVIEW AND APPROVAL BY THE CITY PRIOR TO CONSTRUCTION. 2. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS RETAINING WALLS. ALL ROCKERIES IN CITY ROAD RIGHT -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROCKERIES OUTSIDE OF ROAD RIGHT -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE. 0 F'W SLO TAL ESM APPLICATION 1 EARLY CLE*AM & a� LfflM ESM E STRAW 2 PLAN CHANCE /1 Eli M4 4 UNDESIRABLE SEED 3 PLAN CF #AW #2 ESM AND COARSE MATERIAL 2 -3 TONS PER ACRE 4 MYLAIR StlBMIlTTAL ESM 1t, A114 BLOWN STRAW. STRAW SHOULD BE CRIMPED TO N0. REVISION BY DATE I APPR DESIGNS DRAWN: Q CHECKED: APPROVED: Nm ONE INCH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY MULCH STANDARDS AND GUIDELINES MULCH QUALITY APPLICATION MATERIAL STANDARDS RATES REMARKS STRAW AIR - DRIED; FREE FROM 2" -3" THICK; 2 -3 COST- EFFECTIVE PROTECTION WHEN APPLIED UNDESIRABLE SEED BALES PER 1000 SF OR WITH ADEQUATE THICKNESS. HAND- APPLICATION AND COARSE MATERIAL 2 -3 TONS PER ACRE GENERALLY REQUIRES GREATER THICKNESS THAN BLOWN STRAW. STRAW SHOULD BE CRIMPED TO AVOID WIND BLOW. THE THICKNESS OF STRAW MAY BE REDUCED BY HALF WHEN USED IN CONJUNCTION WITH SEEDING. WOOD FIBER NO GROWTH INHIBITING APPROX. 25 -30 LBS SHALL BE APPLIED WITH HYDROMULCHER. SHALL CELLULOSE FACTORS PER 1000 SF OR NOT BE USED WITHOUT SEED AND TACKIFIER 1000 -1500 LBS PER UNLESS THE APPLICATION RATE IS AT LEAST ACRE DOUBLED. SOME WOOD FIBER WITH VERY LONG FIBERS CAN BE EFFECTIVE AT LOWER APPLICATION RATES AND WITHOUT SEED OR TACKIFIER. COMPOST NO VISIBLE WATER OR 2" THICK MIN.; MORE EFFECTIVE CONTROL CAN BE OBTAINED BY DUST DURING APPROX. 100 TONS INCREASING THICKNESS TO 3". EXCELLENT HANDLING. MUST BE PER ACRE (APPROX. MULCH FOR PROTECTING FINAL GRADES UNTIL PURCHASED FROM 800 LBS PER YARD) LANDSCAPING BECAUSE IT CAN BE DIRECTLY SUPPLIER WITH SOLID SEEDED OR TILLED INTO SOIL AS AN WASTE HANDLING AMENDMENT. SOURCES FOR COMPOST ARE PERMIT. AVAILABLE FROM THE KING COUNTY COMMISSION FOR MARKETING RECYCLABLE MATERIALS AT (206) 296 -4439. CHIPPED SITE AVERAGE SIZE SHALL 2" MINIMUM THIS IS A COST- EFFECTIVE WAY TO DISPOSE OF VEGETATION BE SEVERAL INCHES. THICKNESS DEBRIS FROM CLEARING AND GRUBBING, AND IT ELIMINATES THE PROBLEMS ASSOCIATED WITH BURNING. GENERALLY, IT SHOULD NOT BE USED ON SLOPES ABOVE APPROX. 10% BECAUSE OF ITS TENDENCY TO BE TRANSPORTED BY RUNOFF. IT IS NOT RECOMMENDED WITHIN 200 FEET OF SURFACE WATERS. IF SEEDING IS EXPECTED SHORTLY AFTER MULCH, THE DECOMPOSITION OF THE CHIPPED VEGETATION MAY TIE UP NUTRIENTS IMPORTANT TO GRASS ESTABLISHMENT. VERTICAL NAVD 1988 HORIZONTAL: NAD 1983/1991 DATUM 8' - 10' nA1 %1A►11-7r -n ui1r%r J 1 LLL. 1 LI11 .I L. r V.J 1 OR 2' x 2' WOODEN POST r TEMPORARY CONSTRUCTION FENCE DETAIL NOT TO SCALE !4, R CITY OF RENTON Planning /Building /Public Works Dept. * .n ; J R- 380807 CHECKED FOR COMPLIANCE TO CITY STANDARDS GREENLEAF GRADING & T.E.S.C. DETAILS & NOTES UTILITY PERMIT #14004398 am- 1?,/30/201 GR-02' Er: o s • L z C m Z 71 m D '11 l.! ,z Z D t L I L 3 L 7 J J l O D Z G1 Z C m x ^; J 77 j 0 yT�1 U O m D