EROSION PREVENTION & SEDIMENT CONTROLerosion prevention & sediment control e-1.00a. general erosion prevention & sediment control notes 1. all erosion and sediment control measures
GENERAL EROSION PREVENTION & SEDIMENT CONTROL NOTES 1. ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE IN PLACE AND IN WORKING CONDITION PRIOR TO ANY LAND DISTURBING ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE IN PLACE AND IN WORKING CONDITION PRIOR TO ANY LAND DISTURBING ACTIVITY INCLUDING CLEARING OR GRADING. EROSION AND SEDIMENT CONTROL MEASURES SHALL BE APPROVED BY THE CITY EROSION SPECIALIST PRIOR TO THE COMMENCEMENT OF WORK. AN ON-SITE INSPECTION SHALL BE REQUESTED WHEN EROSION AND SEDIMENT CONTROL MEASURES ARE IN PLACE AND PRIOR TO COMMENCEMENT OF WORK. ONCE APPROVED, THE SITE MUST BE MAINTAINED THROUGH THE LIFE OF THE PROJECT, AS SHOWN ON THE PLANS. ADDITIONAL MEASURES MAY BE REQUIRED TO MEET THE PROVISIONS OF THE CITY EROSION PREVENTION AND SEDIMENT CONTROL ORDINANCE VMC 14.24. 2. EROSION AND SEDIMENT CONTROL BMPS SHALL BE SITED, DESIGNED AND CONSTRUCTED IN ACCORDANCE WITH THE REQUIREMENTS IN EROSION AND SEDIMENT CONTROL BMPS SHALL BE SITED, DESIGNED AND CONSTRUCTED IN ACCORDANCE WITH THE REQUIREMENTS IN THE CITY OF VANCOUVER'S LATEST VERSION OF GENERAL REQUIREMENTS AND STANDARD DETAILS MANUAL AND THE WASHINGTON STATE DEPARTMENT OF ECOLOGY STORMWATER MANAGEMENT MANUAL FOR WESTERN WASHINGTON, WHERE THE CITY OF VANCOUVER GENERAL REQUIREMENTS SHALL TAKE PRECEDENCE. 3. THE DEVELOPER AND/OR OWNER IS RESPONSIBLE FOR MAINTAINING EROSION PREVENTION AND SEDIMENT CONTROL BMPS DURING AND THE DEVELOPER AND/OR OWNER IS RESPONSIBLE FOR MAINTAINING EROSION PREVENTION AND SEDIMENT CONTROL BMPS DURING AND AFTER INSTALLATION OF ALL UTILITY WORK ASSOCIATED WITH UTILITY TRENCHES. 4. PRIOR TO ANY SITE EXCAVATION, ALL STORM DRAIN INLETS SHALL BE PROTECTED DOWN SLOPE FROM ANY DISTURBED OR CONSTRUCTION PRIOR TO ANY SITE EXCAVATION, ALL STORM DRAIN INLETS SHALL BE PROTECTED DOWN SLOPE FROM ANY DISTURBED OR CONSTRUCTION AREAS PER STANDARD DETAIL E-2.20 TO PREVENT SEDIMENT FROM ENTERING THE STORM DRAINAGE SYSTEM PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREAS. CLEAN INLET FILTER AS NECESSARY TO MAINTAIN DRAINAGE. REMOVE FILTER AND CLEAN CATCH BASINS FOLLOWING COMPLETION OF SITE WORK. 5. NEWLY CONSTRUCTED OR MODIFIED INLETS AND CATCH BASINS SHALL BE PROTECTED FROM SEDIMENT IMMEDIATELY UPON INSTALLATION. NEWLY CONSTRUCTED OR MODIFIED INLETS AND CATCH BASINS SHALL BE PROTECTED FROM SEDIMENT IMMEDIATELY UPON INSTALLATION. 6. THE CONTRACTOR SHALL NOT ALLOW SEDIMENT OR DEBRIS TO ENTER NEW OR EXISTING PIPES, CATCH BASINS OR INFILTRATION SYSTEMS. THE CONTRACTOR SHALL NOT ALLOW SEDIMENT OR DEBRIS TO ENTER NEW OR EXISTING PIPES, CATCH BASINS OR INFILTRATION SYSTEMS. IF THIS OCCURS, THE CONTRACTOR SHALL REMOVE ALL ACCUMULATED SEDIMENT FROM THE CATCH BASINS, DRYWELLS, AND STORM PIPES IMMEDIATELY. FINAL ACCEPTANCE WILL NOT BE ISSUED BY THE CITY UNTIL THIS OCCURS. 7. PRIOR TO LEAVING A CONSTRUCTION SITE OR PRIOR TO DISCHARGING INTO AN INFILTRATION SYSTEM, SEDIMENT-LADEN WATER SHALL PRIOR TO LEAVING A CONSTRUCTION SITE OR PRIOR TO DISCHARGING INTO AN INFILTRATION SYSTEM, SEDIMENT-LADEN WATER SHALL PASS THROUGH A SEDIMENT POND, TRAP, OR OTHER APPROVED BMP SYSTEM. 8. ALL EXPOSED AND UNWORKED SOILS SHALL BE STABILIZED BY THE APPROPRIATE BEST MANAGEMENT PRACTICES (BMPS). FROM OCTOBER ALL EXPOSED AND UNWORKED SOILS SHALL BE STABILIZED BY THE APPROPRIATE BEST MANAGEMENT PRACTICES (BMPS). FROM OCTOBER 1 TO APRIL 30, NO SOILS SHALL BE EXPOSED AND UNWORKED FOR MORE THAN TWO (2) DAYS. FROM MAY 1 TO SEPTEMBER 30, NO SOILS SHALL BE EXPOSED AND UNWORKED FOR MORE THAN SEVEN (7) DAYS. 9. SOIL STOCKPILES SHALL BE STABILIZED FROM EROSION, PROTECTED WITH SEDIMENT TRAPPING MEASURES, AND WHEN POSSIBLE, BE SOIL STOCKPILES SHALL BE STABILIZED FROM EROSION, PROTECTED WITH SEDIMENT TRAPPING MEASURES, AND WHEN POSSIBLE, BE LOCATED AWAY FROM STORM DRAIN INLETS, WATER WAYS AND DRAINAGE CHANNELS. 10. CONSTRUCTION ROADS AND PARKING AREAS SHALL BE STABILIZED WHEREVER THEY ARE CONSTRUCTED, WHETHER PERMANENT OR TEMPORARY, FOR THE USE OF CONSTRUCTION TRAFFIC. 11. IF THE BMPS APPLIED TO A SITE ARE INSUFFICIENT TO PREVENT SEDIMENT FROM REACHING WATER BODIES, ADJACENT PROPERTIES,STORM FACILITIES OR PUBLIC RIGHT-OF-WAY, THEN THE CITY SHALL REQUIRE ADDITIONAL BMPS. 12. IF THE CITY INSPECTOR OR ENGINEER(S) HAS EVIDENCE OF POOR CONSTRUCTION PRACTICES OR IMPROPER EROSION PREVENTION IF THE CITY INSPECTOR OR ENGINEER(S) HAS EVIDENCE OF POOR CONSTRUCTION PRACTICES OR IMPROPER EROSION PREVENTION BMPS, CITATIONS AND /OR A STOP WORK ORDER SHALL BE ISSUED UNTIL PROPER MEASURES HAVE BEEN TAKEN AND APPROVED BY THE CITY OF VANCOUVER. PROTECTION OF ADJACENT PROPERTIES, ROADS/STREETS AND PAVED SURFACES 13. PROVIDE A 12-INCH DEEP PAD OF CRUSHED ROCK FOR A DISTANCE OF 100 FEET INTO THE SITE FOR ALL ACCESS PROVIDE A 12-INCH DEEP PAD OF CRUSHED ROCK FOR A DISTANCE OF 100 FEET INTO THE SITE FOR ALL ACCESS POINTS UTILIZED BY CONSTRUCTION EQUIPMENT AND TRUCKS. PAD WIDTH SHALL BE A MINIMUM OF 20 FEET. ALL VEHICLES LEAVING POINTS UTILIZED BY CONSTRUCTION EQUIPMENT AND TRUCKS. PAD WIDTH SHALL BE A MINIMUM OF 20 FEET. ALL VEHICLES LEAVING THE SITE SHALL EGRESS ACROSS THE PAD. ACCUMULATED SEDIMENT SHALL BE PERIODICALLY REMOVED, OR ADDITIONAL ROCK SHALL BE PLACED UPON THE PAD SURFACE. ROCK SHALL BE CLEAN 4-INCH TO 8-INCH QUARRY SPALLS. ALL MATERIALS SPILLED, DROPPED, WASHED OR TRACKED FROM VEHICLES ONTO ROADWAYS OR INTO STORM DRAINS SHALL BE REMOVED IMMEDIATELY. MECHANICAL BROOM SWEEPERS ARE NOT ALLOWED. 14. IF SEDIMENT, MUD OR DEBRIS IS TRANSPORTED ONTO A PAVED SURFACE OR ROADWAY, THE PAVED SURFACES SHALL BE THOROUGHLY CLEANED WITH HIGH EFFICIENCY STREET SWEEPERS AT THE END OF EACH WORKDAY, OR MORE OFTEN IF NECESSARY. PUBLICLY TRAVELED PAVED SURFACES NEED TO BE CLEANED IMMEDIATELY. SIGNIFICANT SOIL DEPOSITS SHALL BE REMOVED FROM ROADS BY SHOVELING AND SWEEPING. STREET WASHING IS NOT ALLOWED UNLESS APPROVED BY THE DIRECTOR AND ONLY AFTER SEDIMENT IS REMOVED IN THE MANNER DESCRIBED ABOVE. MECHANICAL BROOM SWEEPERS ARE NOT ALLOWED. 15. SLURRY AND CUTTINGS SHALL BE VACUUMED DURING CUTTING AND SURFACING OPERATIONS. COLLECTED SLURRY AND CUTTINGS SHALL BE DISPOSED OF IN A MANNER THAT DOES NOT VIOLATE GROUNDWATER OR SURFACE WATER QUALITY STANDARDS. 16. A WHEEL WASH MAY BE REQUIRED IF CONSTRUCTION ENTRANCE IS NOT SUFFICIENT IN PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT. WHEEL WASH SHALL BE PER STANDARD PLAN E-1.06 AND THE STORMWATER MANUAL. 17. INSTALL SEDIMENT FENCE PER STANDARD PLAN E-2.33 PRIOR TO BUILDING CONSTRUCTION AND/OR EXCAVATION TO PREVENT SILT INTRUSION UPON ADJACENT LOTS. IF CONSTRUCTION OCCURS SIMULTANEOUSLY ON ADJACENT LOTS AND THE LOTS HAVE THE SAME INTRUSION UPON ADJACENT LOTS. IF CONSTRUCTION OCCURS SIMULTANEOUSLY ON ADJACENT LOTS AND THE LOTS HAVE THE SAME OWNER DURING CONSTRUCTION, THE SILT FENCE ALONG THE COMMON LOT LINE MAY BE ELIMINATED.
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CITY OF VANCOUVER
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DEPARTMENT OF PUBLIC WORKS
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SURFACE WATER MANAGEMENT
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REV. NO.
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DATE
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BY
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APPROVED
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05/15/18
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KAO
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STANDARD PLAN NO.
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11/01/06
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AMG
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01/31/15
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08/10/09
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EROSION PREVENTION & SEDIMENT CONTROL
E-1.00b
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GENERAL EROSION PREVENTION & SEDIMENT CONTROL NOTES (CONTINUED) 18. PROPOSED PERMEABLE PAVEMENT AREAS SHALL BE SHOWN ON THE EROSION CONTROL PLAN. PERMEABLE PAVEMENT AREAS SHALL BE PROTECTED FROM SEDIMENT DURING AND AFTER INSTALLATION, UNTIL THE DEVELOPMENT CONSTRUCTION IS COMPLETED. 19. WASHOUT OF CONCRETE TRUCKS MUST BE PERFORMED OFF-SITE OR IN DESIGNATED CONCRETE WASHOUT AREAS ONLY. WASHING OUT WASHOUT OF CONCRETE TRUCKS MUST BE PERFORMED OFF-SITE OR IN DESIGNATED CONCRETE WASHOUT AREAS ONLY. WASHING OUT CONCRETE TRUCKS, CHUTES, TOOLS OR EQUIPMENT ON THE GROUND OR INTO STORM DRAINS, OPEN DITCHES, STREETS OR STREAMS IS PROHIBITED 20. SUBMIT DEWATERING PLAN PRIOR TO DISCHARGING TURBID AND CONTAMINATED STORMWATER AND GROUNDWATER OFF-SITE. TREATMENT OR DISPOSAL OPTIONS MAY INCLUDE: INFILTRATION, TRANSPORT OFF-SITE IN A VEHICLE, FOR LEGAL DISPOSAL IN A MANNER THAT DOES NOT POLLUTE STATE WATER; ECOLOGY APPROVED ON-SITE CHEMICAL TREATMENT; SANITARY OR COMBINED SEWER DISCHARGE WITH LOCAL SEWER DISTRICT APPROVAL; USE OF THE SEDIMENTATION BAG WITH OUTFALL TO A DITCH OR SWALE FOR SMALL VOLUMES OF LOCALIZED DEWATERING. 21. PERMANENT STORM WATER FACILITIES SHALL BE ISOLATED AND PROTECTED FROM SEDIMENTATION WITH AN APPROVED BMP. PERMANENT STORM WATER FACILITIES SHALL BE ISOLATED AND PROTECTED FROM SEDIMENTATION WITH AN APPROVED BMP. MAINTENANCE OF EROSION PREVENTION AND SEDIMENT CONTROL BMPS 22. ALL EROSION PREVENTION AND SEDIMENT CONTROL BMP'S SHALL BE REGULARLY INSPECTED AND MAINTAINED TO ENSURE CONTINUED PERFORMANCE OF THEIR INTENDED FUNCTION. 23. THE CONTRACTOR/CESCL SHALL MAINTAIN AND HAVE ON-SITE A WRITTEN LOG OF EROSION PREVENTION AND SEDIMENT CONTROL BMP MAINTENANCE. CONSTRUCTION SITES SHALL BE INSPECTED AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL EVENT. 24. ALL TEMPORARY EROSION PREVENTION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER SITE STABILIZATION IS ACHIEVED OR AFTER TEMPORARY BMPS ARE NO LONGER NEEDED. TRAPPED SEDIMENT SHALL BE REMOVED OR STABILIZED ON SITE. DISTURBED SOIL AREAS RESULTING FROM REMOVAL SHALL BE PERMANENTLY STABILIZED PER THE STORMWATER MANUAL. DUST CONTROL 25. IN AREAS SUBJECT TO SURFACE AND AIR MOVEMENT OF DUST, REFER TO THE STORMWATER MANUAL FOR DUST CONTROL BMP'S. TEMPORARY SEEDING 26. EXPOSED SURFACES THAT WILL NOT BE BROUGHT TO FINAL GRADE OR GIVEN A PERMANENT COVER TREATMENT WITHIN 30 DAYS OF THE EXPOSURE SHALL HAVE SEED MIX AND MULCH PLACED TO STABILIZE THE SOIL AND REDUCE EROSION SEDIMENTATION. SEEDED AREAS AREAS SHALL BE CHECKED REGULARLY TO ASSURE A GOOD STAND OF GRASS IS BEING MAINTAINED. AREAS THAT FAIL TO ESTABLISH VEGETATION VEGETATION COVER ADEQUATE TO PREVENT EROSION WILL BE RESEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. 27. AN APPROVED TEMPORARY SEEDING MIXTURE SHALL BE APPLIED TO THE PREPARED SEED BED AT A RATE OF 120 LBS/ACRE. NOTE: "HYDROSEEDING" APPLICATIONS WITH APPROVED SEED-MULCH-FERTILIZER MIXTURES MAY ALSO BE USED. PROTECTION OF LOW IMPACT DEVELOPMENT (LID) BMP'S 28. PROTECT ALL BIORETENTION AND RAIN GARDEN FACILITIES FROM SEDIMENTATION THROUGH INSTALLATION AND MAINTENANCE OF EROSION AND SEDIMENT CONTROL BMP'S. 29. RESTORE LID FACULTIES TO FULL FUNCTIONING CONDITION IF THEY ACCUMULATE SEDIMENT DURING CONSTRUCTION. 30. MAINTAIN THE INFILTRATION CAPABILITIES OF BIORETENTION AND RAIN GARDEN FACILITIES BY PROTECTING AGAINST COMPACTION. 31. CONTROL EROSION AND PREVENT SEDIMENT FROM CONTAMINATING PERMEABLE PAVEMENTS. CLEAN PERMEABLE PAVEMENT FOULED WITH SEDIMENT OR NO LONGER PASSING AN INITIAL INFILTRATION TEST. 32. KEEP HEAVY EQUIPMENT OFF EXISTING SOILS UNDER PROPOSED LID FACILITIES THAT HAVE BEEN EXCAVATED TO FINAL GRADE TO RETAIN THE SOIL INFILTRATION RATE. 33. CLEARING LIMITS FOR CRITICAL AREAS AND THEIR BUFFERS, AND TREES THAT ARE TO BE PRESERVED WITHIN THE CONSTRUCTION AREA SHALL BE CLEARLY MARKED PRIOR TO LAND-DISTURBING ACTIVITY.
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CITY OF VANCOUVER
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DEPARTMENT OF PUBLIC WORKS
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SURFACE WATER MANAGEMENT
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REV. NO.
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DATE
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BY
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APPROVED
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AMG
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STANDARD PLAN NO.
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11/01/06
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KAO
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AMG
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05/15/18
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DN
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AMG
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08/10/09
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DN
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01/31/15
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E-0.10SYMBOLS
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OP
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LS
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CD
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TSD
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8
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6
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6
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6
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OUTLET PROTECTION
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CHECK DAMS
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LEVEL SPREADER
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C209
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C208
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C207
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C206
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TRIANGULAR SILT DIKE (GEOTEXTILE-ENCASED CHECK DAM)
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FIL
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FB
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VS
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SW
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CT
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STB
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BB
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IP
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ST
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SW
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VS
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SF
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FIL
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CT
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SP
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FB
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4
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4
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4
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4
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4
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3, 4
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3, 4
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4
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4
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4
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7
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C234
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C235
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C240
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C241
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C250
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C251
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C233
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VEGETATED STRIP
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STRAW WATTLES
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SEDIMENT TRAP
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SILT FENCE
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BRUSH BARRIER
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C232
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C231
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C230
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C220
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CONSTRUCTION STORMWATER CHEMICAL TREATMENT
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CONSTRUCTION STORMWATER FILTRATION
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TEMPORARY SEDIMENT POND
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GRAVEL FILTER BERM
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STRAW BALE BARRIER
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STORM DRAIN INLET PROTECTION
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GT
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CONCRETE HANDLING
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MATERIALS ON HAND
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DUST CONTROL
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GRADIENT TERRACES
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DC
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CH
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MOH
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GT
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DC
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BZ
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5
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5, 6
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9
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FE
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SWF
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C151
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C150
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C140
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C131
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KEY
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SYMBOL
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VEG
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SWF
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HVF
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BZ
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VEG
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CL
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WB
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ID
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IS
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SUD
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PSD
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ID
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IS
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SUBSURFACE DRAINS
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PIPE SLOPE DRAIN
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WATER BARS
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CHANNEL LINING
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GRASS-LINED CHANNELS
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INTERCEPTOR DIKE AND SWALE
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SMALL PROJECT CONSTRUCTION STORMWATER POLLUTION PREVENTION
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SCHEDULING
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PAYMENT OF EROSION CONTROL WORK
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SAW
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SCL
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PAY
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SCH
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WB
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SMP
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CL
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GC
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PSD
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PAM
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9
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2
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2
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5
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6
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6
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5
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6
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8
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5
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6
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PC
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NET
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SO
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C205
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C204
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C203
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C202
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C201
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C200
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C180
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C162
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C161
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C160
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C152
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MU
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SR
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TO
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PAM
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SO
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PC
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NET
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CRS
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WW
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CE
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TPS
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CRS
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SR
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TO
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TPS
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MU
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CONTRACTOR EROSION AND SPILL CONTROL LEAD
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SAWCUTTING AND SURFACING POLLUTION PREVENTION
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WESTERN WASHINGTON SWMM SPECIFICATIONS
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WESTERN WASHINGTON SWMM SPECIFICATIONS
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WESTERN WASHINGTON SWMM SPECIFICATIONS
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WESTERN WASHINGTON SWMM SPECIFICATIONS
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WESTERN WASHINGTON SWMM SPECIFICATIONS
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CITY OF VANCOUVER SPECIFICATIONS
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WESTERN WASHINGTON SWMM SPECIFICATIONS
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TITLE
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BMP#
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1
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1
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1
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1
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ELE#
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C104
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C103
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C102
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C101
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BUFFER ZONES
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5, 6
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5
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5
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5
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5
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5
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5
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5, 6
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2
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2
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2
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C130
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C126
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C125
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C124
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C123
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C122
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C121
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C120
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C107
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C106
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C105
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TOPSOILING
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SODDING
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PLASTIC COVERING
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NETS AND BLANKETS
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MULCHING
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WHEEL WASH
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SURFACE ROUGHENING
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POLYACRYLAMIDE FOR SOIL EROSION PROTECTION
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TEMPORARY AND PERMANENT SEEDING
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CONSTRUCTION ROAD / PARKING STABILIZATION
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STABILIZED CONSTRUCTION ENTRANCE
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STAKE AND WIRE FENCE
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HIGH VISIBILITY PLASTIC OR METAL FENCE
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PRESERVING NATURAL VEGETATION
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5,6,8
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STANDARD PLAN NO.
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APPROVED
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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06/07/04
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MDH
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AMG
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8/10/09
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DN
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AMG
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01/31/15
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E-0.20aSMALL PROJECT EROSION PREVENTION DETAIL
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(DETAIL E-1.05)
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MINIMUM 20 FEET IN LENGTH
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STABILIZED CONSTRUCTION ACCESS
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BUILDING
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TYPICAL
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DETAIL E-1.23
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DRIVEWAY
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TYPICAL
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UNDISTURBED SOIL
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SILT FENCING (DETAIL E-2.33)
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INLET PROTECTION
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(DETAIL E-2.20)
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UNTIL PERMANENT
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VEGETATION AS BUFFER
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LEAVE IN NATURAL
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LANDSCAPING
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AND TIED DOWN
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WITH PLASTIC, STAKED
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STOCKPILE COVERED
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CONCRETE WASTE
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COLLECTION BASIN
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DEBRIS/TRASH
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COLLECTION AND
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CONTAINMENT AREA
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TYPICAL FLOW ROUTES
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DISTURBED SOIL RELATED TO CONSTRUCTION
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DISTURBED SOILS COVERED WITH STRAW TO STABILIZE THE SITE
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COMPLETED ROADWAY
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LABLE STREET ADDRESS AND CROSS STREETS
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INCLUDE ON STORMWATER SITE PLAN: 1. ADD APPLICANT'S NAME AND PHONE NUMBER ADD APPLICANT'S NAME AND PHONE NUMBER 2. LABEL STREET ADDRESS AND CROSS STREETS LABEL STREET ADDRESS AND CROSS STREETS 3. TOTAL PROJECT SQUARE FOOTAGE TOTAL PROJECT SQUARE FOOTAGE 4. SHOW ALL CRITICAL AREAS (SLOPES, WETLANDS, SHORELINES) SHOW ALL CRITICAL AREAS (SLOPES, WETLANDS, SHORELINES) 5. INCLUDE TOTAL OF LAND DISTURBING IN SQUARE FEET INCLUDE TOTAL OF LAND DISTURBING IN SQUARE FEET 6. INCLUDE TOTAL OF REPLACED OR NEW PLUS REPLACED IMPERVIOUS IN SQUARE INCLUDE TOTAL OF REPLACED OR NEW PLUS REPLACED IMPERVIOUS IN SQUARE FEET.
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N.T.S.
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STANDARD PLAN NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/05/05
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AMG
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08/10/09
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DN
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08/10/09
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08/10/09
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05/08/18
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E-0.20bSMALL PROJECT EROSION PREVENTION DETAIL
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N.T.S.
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STANDARD PLAN NO.
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DN
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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08/10/09
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AMG
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05/08/18
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DN
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AMG
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AMG
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01/31/15
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DN
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AMG
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SMALL PROJECT EROSION PREVENTION PLAN NOTES THE FOLLOWING BMP'S ARE REQUIRED FOR ALL CONSTRUCTION UNLESS IT CAN BE SHOWN THAT IT IS NOT NECESSARY: 1. CONTRACTOR SHALL CONFORM TO ALL EROSION PREVENTION AND SEDIMENT CONTROL NOTES AND DETAILS. CONTRACTOR SHALL CONFORM TO ALL EROSION PREVENTION AND SEDIMENT CONTROL NOTES AND DETAILS. AN EROSION CONTROL INSPECTION (ZON510) MUST BE SCHEDULED AND APPROVED PRIOR TO LAND DISTURBING ACTIVITY. 2. CONCRETE TRUCK CHUTES AND PUMPS SHALL BE WASHED OUT ONLY INTO A FORMED AREA. WHEN NO CONCRETE TRUCK CHUTES AND PUMPS SHALL BE WASHED OUT ONLY INTO A FORMED AREA. WHEN NO FORMED AREAS ARE AVAILABLE, WASHWATER AND LEFTOVER PRODUCT SHALL BE CONTAINED IN A LINED CONTAINER OR HAULED OFF-SITE BY CONTRACTOR. 3. PROTECT PERMEABLE PAVEMENT AND LID (LOW IMPACT DEVELOPMENT) FACILITIES IN THE ROAD AND PROTECT PERMEABLE PAVEMENT AND LID (LOW IMPACT DEVELOPMENT) FACILITIES IN THE ROAD AND DRIVEWAY. 4. A GRAVEL CONSTRUCTION ENTRANCE SHALL BE PLACED FROM THE CURB TO THE STRUCTURE PRIOR TO A GRAVEL CONSTRUCTION ENTRANCE SHALL BE PLACED FROM THE CURB TO THE STRUCTURE PRIOR TO STARTING WORK. THE ROCK MUST EXTEND THE FULL WIDTH OF THE INGRESS/EGRESS AREA (MIN. 20'). THE CONSTRUCTION ENTRANCE SHALL BE KEPT FREE OF EXCESSIVE MUD AND SHALL BE REPAIRED TO GOOD WORKING CONDITION AS NECESSARY. IF IT IS DISCOVERED THAT THE CONSTRUCTION ENTRANCE IS BEING CIRCUMVENTED, CONSTRUCTION FENCING WILL BE IMMEDIATELY REQUIRED AROUND THE ENTIRE PROPERTY PERIMETER. 5. SILT FENCE SHALL BE INSTALLED ON THE ENTIRE FRONTAGE OF ALL IMPERVIOUS SURFACES. THE PURPOSE SILT FENCE SHALL BE INSTALLED ON THE ENTIRE FRONTAGE OF ALL IMPERVIOUS SURFACES. THE PURPOSE OF THIS FENCE IS TO PROTECT NEIGHBORING PROPERTIES, CRITICAL AREAS AND RIGHT-OF-WAYS FROM SEDIMENT DEPOSITS, DELINEATE CLEARING LIMITS, AND TO CHANNEL ALL CONSTRUCTION TRAFFIC TO THE GRAVEL CONSTRUCTION ENTRANCE. 6. CATCH BASIN INSERTS MUST BE INSTALLED (SEE DETAIL E2.20A AND/OR E2.20B) CATCH BASIN INSERTS. CATCH BASIN INSERTS MUST BE INSTALLED (SEE DETAIL E2.20A AND/OR E2.20B) CATCH BASIN INSERTS. INLET PROTECTION SHALL BE MAINTAINED OR REPLACED AS NECESSARY UNTIL FINAL LANDSCAPING IS APPROVED. 7. ALL EXPOSED AND UNWORKED SOILS SHALL BE STABILIZED BY THE APPROPRIATE BEST MANAGEMENT ALL EXPOSED AND UNWORKED SOILS SHALL BE STABILIZED BY THE APPROPRIATE BEST MANAGEMENT PRACTICES (BMPS). FROM OCTOBER 1 TO APRIL 30, NO SOILS SHALL BE EXPOSED AND UNWORKED FOR MORE THAN TWO (2) DAYS. FROM MAY 1 TO SEPTEMBER 30, NO SOILS SHALL BE EXPOSED AND UNWORKED FOR MORE THAN SEVEN (7) DAYS. SOIL STOCKPILES MUST BE COVERED BY THE END OF EACH WORKDAY. 8. PROTECT EXISTING AND PROPOSED LID STRUCTURES AND SYSTEMS FROM COMPACTION AND SEDIMENTATION. PROTECT EXISTING AND PROPOSED LID STRUCTURES AND SYSTEMS FROM COMPACTION AND SEDIMENTATION. AVOID DRIVING CONSTRUCTION EQUIPMENT OVER LID (LOW IMPACT DEVELOPMENT) STRUCTURES AND SYSTEMS. 9. AN ABBREVIATED STORMWATER POLLUTION PREVENTION PLAN (SWPPP) MAY BE REQUIRED. THE AN ABBREVIATED STORMWATER POLLUTION PREVENTION PLAN (SWPPP) MAY BE REQUIRED. THE STORMWATER POLLUTION PREVENTION PLAN (SWPPP) IS A SEPARATE CHECKLIST THAT DESCRIBES HOW EROSION, SEDIMENT AND STORMWATER WILL BE CONTROLLED DURING CONSTRUCTION. THE FORM IS AVAILABLE AT THE CITY OF VANCOUVER'S PERMIT COUNTER. 10. THE CONTRACTOR/CESCL SHALL MAINTAIN AND HAVE ON-SITE A WRITTEN LOG OF EROSION PREVENTION THE CONTRACTOR/CESCL SHALL MAINTAIN AND HAVE ON-SITE A WRITTEN LOG OF EROSION PREVENTION AND SEDIMENT CONTROL BMP MAINTENANCE. 11. SUBMIT A DEWATERING PLAN PRIOR TO DISCHARGING TURBID AND CONTAMINATED STORMWATER AND SUBMIT A DEWATERING PLAN PRIOR TO DISCHARGING TURBID AND CONTAMINATED STORMWATER AND GROUNDWATER OFF-SITE. TREATMENT OR DISPOSAL OPTIONS MAY INCLUDE: INFILTRATION, TRANSPORT OFF-SITE IN A VEHICLE, FOR LEGAL DISPOSAL IN A MANNER THAT DOES NOT POLLUTE STATE WATER; ECOLOGY APPROVED ON-SITE CHEMICAL TREATMENT; SANITARY OR COMBINED SEWER DISCHARGE WITH LOCAL SEWER DISTRICT APPROVAL; USE OF THE SEDIMENTATION BAG WITH OUTFALL TO A DITCH OR SWALE FOR SMALL VOLUMES OF LOCALIZED DEWATERING. 12. CONSIDER THE PLACEMENT OF STRAW WATTLES BEHIND CURBING AND AT DRIVEWAY DROPS DURING THE CONSIDER THE PLACEMENT OF STRAW WATTLES BEHIND CURBING AND AT DRIVEWAY DROPS DURING THE WET SEASON (OCTOBER 1ST-APRIL 30TH). 13. ADDITIONAL BMP'S MAY BE REQUIRED WHERE THOSE LISTED DO NOT ADEQUATELY PROTECT AGAINST EROSION ADDITIONAL BMP'S MAY BE REQUIRED WHERE THOSE LISTED DO NOT ADEQUATELY PROTECT AGAINST EROSION AND SEDIMENT CONTROL. 14. IN AREA SUBJECT TO SURFACE AND AIR MOVEMENT OF DUST, REFER TO THE STORMWATER MANUAL FOR IN AREA SUBJECT TO SURFACE AND AIR MOVEMENT OF DUST, REFER TO THE STORMWATER MANUAL FOR DUST CONTROL BMP'S (BEST MANAGEMENT). CONTROL BMP'S (BEST MANAGEMENT). 15. MARK ALL CLEARING LIMITS FOR CRITICAL AREAS AND THEIR BUFFERS, AND TREES THAT ARE TO BE MARK ALL CLEARING LIMITS FOR CRITICAL AREAS AND THEIR BUFFERS, AND TREES THAT ARE TO BE PRESERVED WITHIN THE CONSTRUCTION AREA.
E-1.05STABILIZED CONSTRUCTION ENTRANCE
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1. IF THE ENTRANCE SITS ON A SLOPE, PLACE A FILTER FABRIC FENCE DOWN GRADIENT. IF THE ENTRANCE SITS ON A SLOPE, PLACE A FILTER FABRIC FENCE DOWN GRADIENT. 2. TOP DRESS THE PAD WITH CLEAN 3" MINUS ROCK WHEN THE CONSTRUCTION ENTRANCE TOP DRESS THE PAD WITH CLEAN 3" MINUS ROCK WHEN THE CONSTRUCTION ENTRANCE BECOMES CLOGGED WITH SEDIMENTS. 3. ANY SEDIMENT CARRIED FROM THE SITE ONTO THE STREET OR PAVED SURFACES SHALL BE ANY SEDIMENT CARRIED FROM THE SITE ONTO THE STREET OR PAVED SURFACES SHALL BE CLEANED UP IMMEDIATELY. 4. IF EQUIPMENT TRAVELS EXTENSIVELY ON UNSTABILIZED ROADS ON THE SITE, A TIRE AND IF EQUIPMENT TRAVELS EXTENSIVELY ON UNSTABILIZED ROADS ON THE SITE, A TIRE AND VEHICLE UNDERCARRIAGE WASH NEAR THE ENTRANCE WILL BE NEEDED. PERFORM WASHING ON CRUSHED ROCK. WASH WATER WILL REQUIRE TREATMENT IN A SEDIMENT POND OR TRAP. 5. WHERE CONSTRUCTION ACCESS ABUTS A CURB, MINIMUM 2" DIAMETER PVC AND AND COLD-PATCH ASPHALT SHOULD BE USED TO CONSTRUCT THE APPROACH IN ORDER TO PROTECT IN ORDER TO PROTECT THE CURB AND MINIMIZE OBSTRUCTION TO STORMWATER FLOW IN THE GUTTER. STORMWATER FLOW IN THE GUTTER. 6. TRUCKS LEAVING THE SITE SHALL EGRESS ACROSS THE FULL LENGTH OF THE PAD. PAD. 7. SINGLE FAMILY LOT ENTRANCES MAY HAVE THE PAD LENGTH REDUCED TO 2 0 FEET IN LENGTH AND ROCK SHALL BE CLEANED 2 INCH TO 4INCH.0 FEET IN LENGTH AND ROCK SHALL BE CLEANED 2 INCH TO 4INCH.
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100' MIN.
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20' MIN.
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R = 25' MIN.
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EXISTING ROAD
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12" MIN. THICKNESS
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GEOTEXTILE
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4"-8" QUARRY SPALLS
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INSTALL DRIVEWAY CULVERT IF
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THERE IS A ROADSIDE DITCH
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%%UNOTES:
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PRESENT
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DRIVEWAYS SHALL BE PAVED TO THE EDGE OF R-O-W PRIOR TO INSTALLATION OF THE CONSTRUCTION ENTRANCE TO AVOID DAMAGING OF THE ROADWAY.
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IT IS RECOMMENDED THAT THE ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD.
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PROVIDE FULL WIDTH OF INGRESS/EGRESS AREA
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/06/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/31/15
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DN
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AMG
WHEEL WASH
E-1.06
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3'
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5'
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12'
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18'
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50'
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15'
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20'
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15'
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15'
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1:1 SLOPE
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9
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6
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8
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7
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1 1/2" SCHEDULE 40 FOR SPRAYERS
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3
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2" SCHEDULE 40
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LEGEND: 1. ASPHALT CONSTRUCTION ENTRANCE 6 IN. ASPHALT TREATED BASE (ATB). ASPHALT CONSTRUCTION ENTRANCE 6 IN. ASPHALT TREATED BASE (ATB). 2. 3 IN. TRASH PUMP WITH FLOATS ON THE SUCTION HOSE. 3 IN. TRASH PUMP WITH FLOATS ON THE SUCTION HOSE. 3. MIDPOINT SPRAY NOZZLES, IF NEEDED. MIDPOINT SPRAY NOZZLES, IF NEEDED. 4. 6 IN. SEWER PIPE WITH BUTTERFLY VALVES. BOTTOM ONE IS A DRAIN. LOCATE TOP 6 IN. SEWER PIPE WITH BUTTERFLY VALVES. BOTTOM ONE IS A DRAIN. LOCATE TOP PIPE'S INVERT 1 FT. ABOVE BOTTOM OF WHEEL WASH. 5. 8 FT. X 8 FT. SUMP WITH 5 FT. OF CATCH. BUILD SO CAN BE CLEANED WITH 8 FT. X 8 FT. SUMP WITH 5 FT. OF CATCH. BUILD SO CAN BE CLEANED WITH TRACKHOE. 6. 6-IN. ASPHALT CURB ON THE LOW ROAD SIDE TO DIRECT WATER BACK TO POND. 6-IN. ASPHALT CURB ON THE LOW ROAD SIDE TO DIRECT WATER BACK TO POND. 7. 6-IN. SLEEVE UNDER ROAD. 6-IN. SLEEVE UNDER ROAD. 8. BALL VALVES. BALL VALVES. 9. 15 FT. ATB APRON TO PROTECT GROUND FROM SPLASHING WATER.15 FT. ATB APRON TO PROTECT GROUND FROM SPLASHING WATER.
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2
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4
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5
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1
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A
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A
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PUMP
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SLOPE
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2%
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SLOPE
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5:1
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SLOPE
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5:1
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SLOPE
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2%
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1:1 SLOPE
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WATER LEVEL
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SECTION A-A
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WHEEL WASH PLAN
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ELEVATION VIEW
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CITY OF VANCOUVER
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DEPARTMENT OF PUBLIC WORKS
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SURFACE WATER MANAGEMENT
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REV. NO.
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DATE
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BY
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APPROVED
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06/07/04
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STANDARD PLAN NO.
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AMG
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N.T.S.
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01/31/15
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DN
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AMG
INTERMITTENT CHECK SLOT
TERMINAL SLOPE AND CHANNEL
ANCHOR TRENCH
INITIAL CHANNEL ANCHOR TRENCH
6"
CHECK SLOT AT 25' INTERVALS
ISOMETRIC VIEW
12"
6"
LONGITUDINAL ANCHOR TRENCH
6"
6"
C
H
A
N
N
E
L
B
O
T
T
O
M
STAKE AT 3' TO 5'
INTERVALS
12"
CHANNEL INSTALLATION
SLOPE INSTALLATION
NETS AND BLANKETS
E-1.22
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PLANTING OF SHRUBS, TREES, ETC. SHOULD OCCUR
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LIME, FERTILIZE AND SEED BEFORE INSTALLATION.
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THE END UNDER 4" AND STAPLE AT 12" INTERVALS
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BRING MATERIAL DOWN TO A LEVEL AREA, TURN
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AND STAPLE AT 12" INTERVALS
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UPSLOPE OF THE BERM
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TOP OF SLOPE, ANCHOR
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IF THERE IS A BERM AT THE
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ANCHOR IN 6"x6" MIN. TRENCH
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PLACEMENT FOR PROPER SOIL CONTACT
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SLOPE SURFACE SHALL BE SMOOTH BEFORE
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ALLOW THE ROLLS TO MOLD TO ANY
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DO NOT STRETCH BLANKETS/MATTINGS TIGHT
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MAY BE PLACED IN HORIZONTAL STRIPS
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FOR SLOPES LESS THAN 3H:1V, ROLLS
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MANUFACTURER'S RECOMMENDATIONS
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OVERLAP
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MIN. 2"
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STAPLING PATTERN AS PER
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STAPLE OVERLAPS
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MAX. 5' SPACING
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AFTER INSTALLATION.
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MIN. 6" OVERLAP
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NOTES: 1. CHECK SLOTS TO BE CONSTRUCTED PER MANUFACTURE'S SPECIFICATIONS. 2. STAKING OF STAPLING LAYOUT PER MANUFACTURES SPECIFICATIONS.
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IRREGULARITIES
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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APPROVED
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REV. NO.
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01/24/02
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DATE
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MDH
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BY
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N.T.S.
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STANDARD PLAN NO.
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01/31/15
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DN
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AMG
E-1.23PLASTIC COVERING
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NOTES: 1. PLASTIC SHEETING IS USED TO PROVIDE IMMEDIATE PROTECTION PLASTIC SHEETING IS USED TO PROVIDE IMMEDIATE PROTECTION TO SLOPES AND STOCKPILES. 2. DO NOT USE PLASTIC COVERING UPSLOPE OF AREAS SUCH AS DO NOT USE PLASTIC COVERING UPSLOPE OF AREAS SUCH AS STEEP AND/OR UNSTABLE SLOPES THAT MIGHT BE ADVERSELY AFFECTED BY CONCENTRATED RUNOFF. 3. WHEN POSSIBLE, INSTALL AN INTERCEPTOR DIKE AT THE TOP WHEN POSSIBLE, INSTALL AN INTERCEPTOR DIKE AT THE TOP OF THE PLASTIC TO DIVERT FLOWS AWAY FROM THE PLASTIC. 4. TOE-IN THE TOP OF THE SHEETING IN A 6"x6" TRENCH TOE-IN THE TOP OF THE SHEETING IN A 6"x6" TRENCH BACKFILLED WITH COMPACTED NATIVE MATERIAL. 5. INSTALL A GRAVEL BERM, RIPRAP, OR OTHER SUITABLE INSTALL A GRAVEL BERM, RIPRAP, OR OTHER SUITABLE PROTECTION AT THE TOP OF THE SLOPE IN ORDER TO DISSIPATE RUNOFF VELOCITY. 6. ANCHOR THE PLASTIC USING SANDBAGS OR OTHER SUITABLE ANCHOR THE PLASTIC USING SANDBAGS OR OTHER SUITABLE TETHERED ANCHOR SYSTEM SPACED ON A 10' GRID SPACING IN ALL DIRECTIONS. 7. OVERLAP SEAMS 1-2', TAPE, ROLL AND STAKE THE SEAMS OVERLAP SEAMS 1-2', TAPE, ROLL AND STAKE THE SEAMS AND THEN WEIGH DOWN THE ENTIRE LENGTH. 8. PROVIDE ENERGY DISSIPATION AT TOE WHEN NEEDED. PROVIDE ENERGY DISSIPATION AT TOE WHEN NEEDED. 9. REPLACE TORN SHEETS AND REPAIR OPEN SEAMS. COMPLETELY REPLACE TORN SHEETS AND REPAIR OPEN SEAMS. COMPLETELY REMOVE AND REPLACE PLASTIC WHEN IT BEGINS TO DETERIORATE.
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%%UPLASTIC SHEETING
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PROVIDE ENERGY DISSIPATION AT TOE WHEN NEEDED.
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MINIMUM 12" OVERLAP
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OF SEAMS.
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N.T.S.
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STANDARD PLAN NO.
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AMG
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/05/05
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DN
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01/31/15
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AMG
TRACKING
'TRACKING' WITH MACHINERY UP AND
DOWN THE SLOPE PROVIDES GROOVES
THAT WILL CATCH SEED, FERTILIZER,
MULCH, RAINFALL AND DECREASE RUNOFF.
1
MAXIMUM
3
6" MIN
GROOVES WILL CATCH SEED,
FERTILIZER, MULCH, RAINFALL
AND DECREASE RUNOFF.
CONTOUR FURROWS
E-1.30SURFACE ROUGHENING
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/22/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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DN
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01/31/15
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AMG
E-1.31GRADIENT TERRACES
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ALL GRADIENT TERRACES SHOULD HAVE ADEQUATE OUTLETS. SUCH AN OUTLET MAY BE A GRASSED WATERWAY, VEGETATED AREA, OR TILE OUTLET. IN ALL CASES THE OUTLET MUST CONVEY RUNOFF FROM THE TERRACE OR TERRACE SYSTEM TO A POINT WHERE THE OUTFLOW WILL NOT CAUSE DAMAGE. VEGETATIVE COVER SHOULD BE USED IN THE OUTLET CHANNEL.
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SLOPE TO ADEQUATE OUTLET
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NOTES:
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50' MAX.
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10' MIN.
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50' MAX.
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50' MAX.
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/05/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/31/15
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DN
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AMG
E-2.00INTERCEPTOR DIKE & SWALE
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1. MAXIMUM SLOPE OF FLOW PATH SHALL BE EQUAL TO OR LESS THAN 5 PERCENT. 2. SIDE SLOPE OF INTERCEPTOR SWALES SHALL BE NO GREATER THAN 2:1 3. MAXIMUM LENGTH BETWEEN SWALES:
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DIKE SPACING DEPENDS ON SLOPE GRADIENT
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2' MIN.
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90% MODIFIED PROCTOR
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DIKE MATERIAL COMPACTED
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18" MIN.
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2:1 MAX. SLOPE
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LEVEL BOTTOM
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1' MIN.
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2' MIN.
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2:1 MAX. SLOPE
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SWALE SPACING DEPENDS ON SLOPE GRADIENT
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DISTANCE
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100 FT
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10-40%
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200 FT
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5-10%
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300 FT
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<5%
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SLOPE
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NOTES:
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/09/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/31/15
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DN
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AMG
GRASS-LINED CHANNELS
E-2.01
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TYPICAL V-SHAPED CHANNEL CROSS-SECTION
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TYPICAL PARABOLIC CHANNEL CROSS-SECTION
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TYPICAL TRAPEZOIDAL CHANNEL CROSS-SECTION
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WITH ROCK CENTER FOR BASS FLOW
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FILTER
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FABRIC
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OVERCUT CHANNEL 2" TO ALLOW
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BULKING DURING SEEDBED
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PREPARATION AND GROWTH OF
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VEGETATION
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DESIGN DEPTH
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6"-9"
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WITH ROCK
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CENTER FOR
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BASE FLOW
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KEY IN FABRIC
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FILTER FABRIC
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WITH CHANNEL LINER
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GRASS LINED
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FILTER
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FABRIC
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WITH ROCK CENTER
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KEY IN FABRIC
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6"-9"
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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APPROVED
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REV. NO.
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01/24/02
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DATE
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MDH
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BY
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N.T.S.
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STANDARD PLAN NO.
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04_WATER_DETAILS
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01/31/15
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DN
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DN
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AMG
E-2.04PIPE SLOPE DRAINS
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END SECTION
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STANDARD FLARED
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WITH GASKETED WATERTIGHT FITTINGS
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SECURELY FASTENED TOGETHER
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INLET AND ALL SECTIONS MUST BE
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90% MODIFIED PROCTOR
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DIKE MATERIAL COMPACTED
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12" MIN.
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INTERCEPTOR DIKE
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CORRUGATED METAL, CPEP,
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HDPE, OR EQUIVALENT PIPE
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DISCHARGE TO A STABILIZED
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WATERCOURSE, SEDIMENT RETENTION
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FACILITY OR STABILIZED OUTLET
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PROVIDE RIP RAP PAD
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OR EQUIVALENT ENERGY
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DISSIPATION
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/11/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/31/15
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DN
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AMG
E-2.06LEVEL SPREADER
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36" MIN
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1" MIN
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6" MIN
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18" MIN REBAR SUPPORTS
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8' MAX. SPACING
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2
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1
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DENSELY VEGETATED FOR A
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MIN OF 100' AND SLOPE
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LESS THAN 5:1
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PRESSURE-TREATED
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2"X10" BOARD
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12" MIN
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MAX
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NOTES:
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1. SPREADER MUST BE LEVEL END TO END. 2. TREATED 2"X10" WOOD BEAMS MAY BE ABUTTED END TO END FOR MAX SPREADER LENGTH OF 50 FEET. 3. ALTERNATIVELY, 6 INCH DIAMETER CMP MAY BE USED AS A SPREADER. THE PIPE SHALL BE BURIED SO THAT ONLY 1 INCH EXTENDS ABOVE GROUND.
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6" MIN
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STANDARD PLAN NO.
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MDH
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01/18/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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N.T.S.
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01/31/15
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DN
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AMG
E-2.07CHECK DAM
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2"-4" ROCK
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A AND B ARE OF EQUAL ELEVATION
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L = THE DISTANCE SUCH THAT POINTS
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A
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L
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B
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2:1 SLOPES
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8'
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24"
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L=
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L=
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L=
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L=
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L=
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L=
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L=
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L=
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L=
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L=
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**NOT ALLOWED
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80 ft
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50 ft
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40 ft
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30 ft
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26 ft O.C.
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50 ft
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33 ft
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26 ft
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20 ft
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16 ft O.C.
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25 ft
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15 ft
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**
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**
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**
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2%
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3%
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4%
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5%
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6%
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18 INCH
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12 INCH
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6 INCH
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MINIMUM WEIR DEPTH
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DITCH GRADE
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CHECK DAM NOTES: 1. CHECK DAMS ARE CONSTRUCTED ACROSS A SWALE OR DITCH TO REDUCE VELOCITIES OF CONCENTRATED FLOWS, THEREBY REDUCING EROSION AND ALLOWING A SIGNIFICANT AMOUNT OF SUSPENDED SEDIMENT TO SETTLE OUT. 2. CHECK DAMS SHALL BE USED IN TEMPORARY OR PERMANENT CHANNELS THAT DRAIN 10 ACRES OR LESS, ARE NOT YET VEGETATED, AND WHEN INSTALLING CHANNEL LINING IS NOT FEASIBLE. 3. USE TYPICAL ROCK SIZE OF 2-4 INCH. PLACE ROCK BY HAND OR BY MECHANICAL MEANS RATHER THAN DUMPING THE ROCK. BRIDGE ENTIRE DITCH OR SWALE WIDTH AND ENSURE THE CENTER OF THE DAM IS 6" LOWER THAN THE OUTER ENDS. FOR HIGHER VELOCITY FLOWS: ±5 FPS USE 6"-12" RIPRAP, AND HAND PLACE LARGER ROCK ON UPSTREAM SIDE OF DAM. 4. REMOVE CHECK DAMS FROM GRASS-LINED DITCHES AND SWALES ONCE THE GRASS IS ESTABLISHED. SEED, MULCH OR MAT THE AREA WHERE THE CHECK DAMS WERE, IMMEDIATELY FOLLOWING REMOVAL. 5. INSPECT ONCE PER WEEK ON ACTIVE SITES, ONCE EVERY TWO WEEKS ON INACTIVE SITES, AND WITHIN 24 HOURS FOLLOWING A 0.5 INCH RAIN EVENT. REMOVE SEDIMENT ONCE IT REACHES ONE-THIRD THE DEPTH OF THE ROCK WEIR. REPLACE ROCK WEIR WHEN FILTERING CAPACITY IS REDUCED BY ONE-HALF. 6. SPACING TABLE FOR CHECK DAMS:
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SPACING BETWEEN CHECK DAMS
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STANDARD PLAN NO.
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MDH
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01/18/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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N.T.S.
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01/06/05
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AMG
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DN
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01/31/15
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AMG
E-2.20aINLET PROTECTION DETAILS
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1. INLET PROTECTION MUST BE REGULARLY INSPECTED TO INSURE PROPER PLACEMENT/FUNCTION AND INLET PROTECTION MUST BE REGULARLY INSPECTED TO INSURE PROPER PLACEMENT/FUNCTION AND MAINTENANCE. FILTER BAG
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CROSS SECTION
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TRIM GEOTEXTILE
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5" MAX.
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SEDIMENT AND DEBRIS
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GRATE
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FRAME
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OVERFLOW BYPASS
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WATER
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FILTERED
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OVERFLOW BYPASS
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RETRIEVAL SYSTEM
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GRATE
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GEOTEXTILE
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ISOMETRIC VIEW
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NOTES: 1. SIZE THE BELOW GRATE INLET DEVICE (BGID) FOR THE STORM WATER STRUCTURE IT WILL SERVICE. 2. THE REMOVAL SYSTEM MUST ALLOW REMOVAL OF THE BGID WITHOUT SPILLING THE COLLECTED MATERIAL. 3. THE BGID SHALL HAVE A BUILT-IN HIGH-FLOW RELIEF SYSTEM (OVERFLOW BYPASS). 4. THE CONTRACTOR SHALL INSPECT THE BAG AFTER EACH STORM EVENT AND AT REGULAR INTERVALS. 5. THE FILTER BAG SHALL BE CLEANED OR REPLACED WHEN THE BAG BECOMES HALF FULL.
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CURB INLET SEDIMENT DAM Material: 100% Non-woven Polyfiber Color: Blue Height: 5" (Custom) Widths: 36" - 54" -70" (Custom) Installation: Place strap through hole(s) provided. Wrap around the horizontal rod in mouth of curb inlet and extend strap through adjacent hole and tie.
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CURB INLET SEDIMENT DAM
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CATCH BASINATCH BASIN
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OVERFLOW SPILLWAY
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CURB INLET SEDIMENT DAM
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N.T.S.
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STANDARD PLAN NO.
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MDH
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06/07/04
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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DN
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AMG
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08/10/09
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01/31/15
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DN
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AMG
PLAN VIEW
E-2.20bINLET PROTECTION DETAILS
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NOTES: 1. USE FILTER MAT SEDIMENT BARRIER WHEN CURB INLET IS LOCATED IN GENTLY SLOPING STREET, WITH MINIMAL NEED, WHERE WATER CAN FILTER AND ALLOW SEDIMENT TO SEPARATE FROM RUNOFF. 2. BARRIER SHALL ALLOW FOR OVERFLOW FROM SEVERE STORM EVENT. 3. INSPECT BARRIERS AND REMOVE SEDIMENT AFTER EACH STORM EVENT. SEDIMENT MUST BE REMOVED FROM THE TRAVELED WAY IMMEDIATELY.
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CURB INLET
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FILTER FABRIC
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BACK OF CURB
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CURB INLET
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36" WIDE FILTER MAT
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N.T.S.
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STANDARD PLAN NO.
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MDH
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06/07/04
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/31/15
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DN
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AMG
E-2.31BRUSH BARRIER
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2' MIN. HEIGHT
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MAX. 6" DIAMETER WOODY DEBRIS.
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MIN. 5' WIDE BRUSH BARRIER WITH
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OVER BRUSH AND SECURE IN 4"x4"
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IF REQUIRED, DRAPE BURLAP, JUTE
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MIN. TRENCH WITH COMPACTED
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SANDBAGS, OR EQUIVALENT
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FABRIC WITH STAKES,
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ANCHOR DOWNHILL EDGE OF
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BACKFILL
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ALTERNATIVELY, TOPSOIL STRIPPINGS
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MAY BE USED TO FORM THE BARRIER.
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MATTING, OR EQUIVALENT FABRIC
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/09/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/05/05
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AMG
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01/31/15
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DN
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AMG
E-2.33SILT FENCE
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3' MAX.
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BURY FILTER FABRIC 6"
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6"
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12" MIN.
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%%UFRONT VIEW
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%%USIDE VIEW
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FILTER FABRIC
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BACKFILL TRENCH WITH
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NATIVE SOIL OR 3/4"-1.5"
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WASHED GRAVEL
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MINIMUM 4"x4" TRENCH
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2"x2" WOOD POSTS, STEEL
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FENCE, POSTS, REBAR, OR
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6' MAX.
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MAINTENANCE STANDARDS: ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY 1. SILT FENCES AND FILTER BARRIERS SHALL BE INSPECTED IMMEDIATELY AFTER EACH SILT FENCES AND FILTER BARRIERS SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. 2. IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE, THEY MUST BE IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT POND. 3. IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE 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 DEPOSITS SHALL EITHER BE REMOVED WHEN THE DEPOSIT REACHES SEDIMENT DEPOSITS SHALL EITHER BE REMOVED WHEN THE DEPOSIT REACHES APPROXIMATELY ONE-THIRD THE HEIGHT OF THE SILT FENCE, OR A SECOND SILT FENCE SHALL BE INSTALLED. 5. IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED.
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EQUIVALENT
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NOTE: FILTER FABRIC FENCES SHALL BE INSTALLED ALONG : FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOUR WHENEVER POSSIBLE
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POST SPACING MAY BE INCREASED TO 8' IF WIRE BACKING IS USED
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JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, SEWN IN POCKETS OR EQUIVALENT TO ATTACH FABRIC TO POSTS.
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2"x2" BY 14 GAUGE WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/06/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/31/15
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DN
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AMG
E-2.35STRAW WATTLES
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SEDIMENT, ORGANIC MATTER,
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AND NATIVE SEEDS ARE
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CAPTURED BEHIND THE ROLLS.
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ADJACENT ROLLS SHALL
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TIGHTLY ABUT
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STRAW ROLLS MUST BE PLACED
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ALONG SLOPE CONTOURS
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3"-5"
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8"-10" DIA.
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1" X 1" STAKE
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LIVE STAKE
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SPACING DEPENDS
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ON SOIL TYPE AND
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SLOPE STEEPNESS
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%%UNOTES:
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10'-25'
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STRAW ROLL INSTALLATION REQUIRES THE PLACEMENT AND SECURE STAKING OF THE ROLL IN A TRENCH, 3"-5" DEEP, DUG ON CONTOUR. RUNOFF MUST NOT BE ALLOWED TO RUN UNDER OR AROUND ROLL.
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3'-4'
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/06/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/31/15
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DN
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AMG
E-2.40SEDIMENT TRAP
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RIPRAP
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FLAT BOTTOM
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1.5' MIN.
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4' MIN.
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2"-4" ROCK
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3/4"-1.5"
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WASHED GRAVEL
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1' MIN. OVERFLOW
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1' MIN.
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3H:1V MAX.
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3.5'-5'
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GEOTEXTILE
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1' MIN.
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GEOTEXTILE
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MIN. 1' DEPTH
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2"-4" ROCK
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WASHED GRAVEL
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MIN. 1' DEPTH 3/4"-1.5"
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NATIVE SOIL OR
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COMPACTED BACKFILL
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1' MIN. DEPTH OVERFLOW SPILLWAY
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6' MIN.
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NOTES: 1. SEDIMENT TRAP MAY BE CONSTRUCTED BY EXCAVATION SEDIMENT TRAP MAY BE CONSTRUCTED BY EXCAVATION OR BY BUILDING A BERM. 2. OUTFLOW CHANNEL SHALL BE CONSTRUCTED BY OUTFLOW CHANNEL SHALL BE CONSTRUCTED BY EXCAVATION. 3. SEDIMENT TRAPS SHALL BE LIMITED TO LESS THAN 1 SEDIMENT TRAPS SHALL BE LIMITED TO LESS THAN 1 ACRE. FOR ANY SITE GREATER THAN 1 ACRE, SEE SEDIMENT BASIN. 4. SEDIMENT SHALL BE REMOVED BEFORE 1 FOOT SEDIMENT SHALL BE REMOVED BEFORE 1 FOOT ACCUMULATES.
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DISCHARGE TO STABILIZED CONVEYANCE, OUTLET OR LEVEL SPREADER
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NOTE: TRAP MAY BE FORMED BY BERM OR BY PARTIAL OR TRAP MAY BE FORMED BY BERM OR BY PARTIAL OR COMPLETE EXCAVATION
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SURFACE AREA DETERMINED AT TOP OF WEIR
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/09/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/31/15
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DN
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AMG
ˆ
E-2.41SEDIMENT POND
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3.5' MIN.
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1. STRUCTURES HAVING A MAXIMUM STORAGE CAPACITY AT THE TOP OF THE DAM OF 10 ACRE-FT (435,600 FT 3) OR MORE ARE SUBJECT TO THE WASHINGTON DAM 3) OR MORE ARE SUBJECT TO THE WASHINGTON DAM SAFETY REGULATIONS (CHAPTER 173-175 WAC). 2. GRADE BOTTOM OF BASIN AS LEVEL AS POSSIBLE. 3. SPILLWAY SHALL BE LINED WITH 2"-4" ROCKS. 4 ALL INLETS AND OUTLETS SHALL BE PROTECTED WITH RIPRAP. 5. IF THE POND POSES A SAFETY HAZARD, IT SHALL BE FENCED. 6. REMOVE SEDIMENT BEFORE 1-FOOT ACCUMULATES.
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EQUIVALENT DIVIDER
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WITH FILTER FABRIC, OR
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STAKED HAY BALES WRAPPED
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WIRE-BACKED SILT FENCE,
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6' MIN. WIDTH
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1' MIN.
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CREST OF
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1'
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EMERGENCY SPILLWAY
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95% PERVIOUS MATERIALS
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SUCH AS GRAVEL OR CLEAN
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EMBANKMENT COMPACTED
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2H:1V MAX.
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DISCHARGE TO STABILIZED
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CONVEYANCE, OUTLET OR
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LEVEL SPREADER
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SAND SHALL NOT BE USED.
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3H:1V MAX.
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RISER PIPE
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TRASH RACK
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DEWATERING DEVICE
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DEWATERING
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ORIFICE
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(SEE RISER DETAIL)
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3H:1V MAX.
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(PRINCIPAL SPILLWAY)
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OPEN AT TOP WITH
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CONCRETE BASE
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(SEE RISER DETAIL)
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PER FIG. 4.4.4E
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BERM OR BY PARTIAL OR
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NOTE: POND MAY BE FORMED BY
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AROUND SIDES
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TO PREVENT FLOW
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KEY DIVIDER INTO SLOPE
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EQUIVALENT DIVIDER
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SILT FENCE OR
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INFLOW
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THE POND LENGTH SHALL
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BE 3 TO 6 TIMES THE
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POND LENGTH
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CONVEYANCE, OUTLET OR
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LEVEL SPREADER
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DISCHARGE TO STABILIZED
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RISER PIPE
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SPILLWAY
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EMERGENCY OVERFLOW
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PREVENT FLOTATION
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AND WIRE MAY BE USED TO
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ALTERNATIVELY, METAL STAKES
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DEWATERING ORIFICE, SCHEDULE
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DIAMETER AS PER CALCULATIONS
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40 STEEL STUB MIN.
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PROVIDE ADEQUATE
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STRAPPING
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POLYETHYLENE CAP
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METAL RISER
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TACK WELD
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WATERTIGHT
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COUPLING
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CORRUGATED
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PERFORATED POLYETHYLENE
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DRAINAGE TUBING, DIAMETER
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MIN. 2" LARGER THAN
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DEWATERING ORIFICE.
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TUBING SHALL COMPLY
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WITH ASTM F667 AND
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AASHTO M294.
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6" MIN.
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CONCRETE BASE
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PLAN VIEW
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CROSS SECTION
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RISER DETAIL
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NOTES:
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2X RISER DIA. MIN.
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18" MIN.
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MAXIMUM POND WIDTH
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OR COMPLETE EXCAVATION
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/09/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/31/15
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DN
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AMG
E-2.45SILTATION TRENCH BEHIND CURB
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1.0'
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.5'
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N.T.S.
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STANDARD PLAN NO.
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MDH
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01/06/02
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APPROVED
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BY
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DATE
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REV. NO.
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SURFACE WATER MANAGEMENT
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DEPARTMENT OF PUBLIC WORKS
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CITY OF VANCOUVER
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01/31/15
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DN
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AMG
E-2.46SEDIMENT BAG DETAIL
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LENGTH
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SEDIMENT BAG
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WIDTH
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TOP VIEW
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SIDE VIEW
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AGGREGATE OR STRAW BALES UNDERLAYMENT
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OPENING ACCOMMODATES UP TO 4" DISCHARGE HOSE
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PUMP DISCHARGE HOSE
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WATER FLOW FROM PUMP
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HIGH STRENGTH STRAPPING FOR HOLDING HOSE IN PLACE
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SEWN IN SPOUT
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HIGH STRENGTH DOUBLE STITCHED "J" TYPE SEAMS
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BAG PLACED ON AGGREGATE OR STRAW
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NOTES: 1. INSTALL THE BAG ON A SLIGHT SLOPE SO INCOMING WATER FLOWS DOWNHILL THROUGH INSTALL THE BAG ON A SLIGHT SLOPE SO INCOMING WATER FLOWS DOWNHILL THROUGH BAG. PLACE THE BAG ON AN AGGREGATE OR STRAW BALE BED TO MAXIMIZE WATER FLOW THROUGH THE SURFACE AREA OF THE BAG. STRAP THE NECK OF BAG TIGHTLY TO THE OF THE BAG. STRAP THE NECK OF BAG TIGHTLY TO THE DISCHARGE HOSE. 2. FLOW RATES WILL VARY DEPENDING ON THE SIZE OF BAG, TYPE AND AMOUNT OF SEDIMENT FLOW RATES WILL VARY DEPENDING ON THE SIZE OF BAG, TYPE AND AMOUNT OF SEDIMENT DISCHARGED INTO BAG, THE SURFACE UNDER THE BAG AND THE DEGREE OF SLOPE THE BAG IS INSTALLED ON. CARE SHOULD BE TAKEN TO PROPERLY MONITOR PERFORMANCE TO ENSURE THAT PUMP RATES OR CONCENTRATIONS OF SEDIMENT ARE NOT EXCESSIVE. FAILURE TO DO SO MAY CAUSE BAG TO RUPTURE OR HOSE ATTACHMENT STRAPS TO FAIL. 3. FILTERED WATER MAY BE INFILTRATED INTO GROUND. FOLLOW APPROPRIATE EROSION FILTERED WATER MAY BE INFILTRATED INTO GROUND. FOLLOW APPROPRIATE EROSION PREVENTION BMPS FOR FILTERED WATER DISCHARGES. 4. BAGS SHALL BE MADE FROM NONWOVEN POLYPROPYLENE GEOTEXTILE.BAGS SHALL BE MADE FROM NONWOVEN POLYPROPYLENE GEOTEXTILE.
