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STANDARD EROSION CONTROL NOTES
<br />CITY OF EVERETT
<br />1. APPROVAL OF THIS EROSION/SEDIMENTATION CONTROL (ESC) PLAN DOES NOT CONSTITUTE AND APPROVAL OF
<br />PERMANENT ROAD OR DRAINAGE DESIGN (E.G. SIZE AND LOCATION OF ROADS, PIPES, RESTRICTORS, CHANNELS,
<br />RETENTION FACILITIES, UTILITIES).
<br />2. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND
<br />UPGRADING OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE APPLICANT/CONTRACTOR UNTIL ALL
<br />CONSTRUCTION IS COMPLETED AND APPROVED AND VEGETATION/LANDSCAPING IS ESTABLISHED.
<br />3. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED IN THE FIELD
<br />PRIOR TO CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE FLAGGED
<br />CLEARING LIMITS SHALL BE PERMITTED. THE FLAGGING SHALL BE MAINTAINED BY THE APPLICANT/CONTRACTOR
<br />FOR THE DURATION OF CONSTRUCTION.
<br />4. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED IN CONJUNCTION WITH ALL CLEARING AND
<br />GRADING ACTIVITIES, AND IN SUCH A MANNER AS TO ENSURE THAT SEDIMENT AND SEDIMENT LADEN WATER DO
<br />NOT ENTER THE DRAINAGE SYSTEM, ROADWAYS, OR VIOLATE APPLICABLE WATER QUALITY STANDARDS.
<br />5. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS.
<br />DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED AS NEEDED FOR UNEXPECTED
<br />STORM EVENTS AND TO ENSURE THAT SEDIMENT AND SEDIMENT -LADEN WATER DO NOT LEAVE THE SITE.
<br />6. THE ESC FACILITIES SHALL BE INSPECTED ROUTINELY AND MAINTAINED BY THE APPLICANT/CONTRACTOR TO
<br />ENSURE THEIR CONTINUED FUNCTION, ESPECIALLY AFTER STORM EVENTS.
<br />7. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR
<br />WITHIN THE 48 HOURS FOLLOWING A MAJOR STORM EVENT.
<br />8. AT NO TIME SHALL MORE THAN ONE FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A TRAPPED CATCH
<br />BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING
<br />OPERATION SHALL NOT FLUSH SEDIMENT LADEN WATER INTO THE DOWNSTREAM SYSTEM.
<br />9. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND
<br />MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES MAY BE REQUIRED TO ENSURE THAT
<br />ALL PAVED AREAS ARE KEPT CLEAN FOR THE DURATION OF THE PROJECT.
<br />10. THE CONTRACTOR SHALL PROVIDE PERIODIC STREET CLEANING TO REMOVE DEBRIS AND SEDIMENT TRACKED OFF
<br />THE SITE.
<br />11. APPROPRIATE MEASURES SHALL BE TAKEN TO STOP SEDIMENT FROM ENTERING SURFACE WATER BODIES IF THE
<br />PROPOSED BMP'S FAIL.
<br />12. BARE AND/OR DISTURBED SOILS SHALL REMAIN UNCOVERED AND/OR UNSTABILIZED FOR NO MORE THAN 2 DAYS
<br />FROM OCTOBER 1 THROUGH APRIL 30, AND FOR NOT MORE THAN 7 DAYS FROM MAY 1 THROUGH SEPTEMBER 30.
<br />DRAINAGE
<br />GRATE FR#
<br />SEDIMENT
<br />AND DEBF
<br />BELO
<br />DEVh
<br />SECTION VIEW
<br />ISOMETRIC VIEW
<br />SEEDING NOTES
<br />1. SEED MIXTURES SHALL BE PER THE "SEED MIXTURE FOR EROSION CONTROL" TABLE BELOW, AND SHALL
<br />BE APPLIED AT THE RATE OF 80 LB. PER ACRE.
<br />2. SEED BEDS PLANTED BETWEEN MAY 1 AND OCTOBER 31 WILL REQUIRE IRRIGATION AND OTHER
<br />MAINTENANCE AS NECESSARY TO FOSTER AND PROTECT THE ROOT STRUCTURE.
<br />3. FOR SEED BEDS PLANTED BETWEEN OCTOBER 31 AND APRIL 30, ARMORING OF THE SEED BED WILL BE
<br />NECESSARY (E.G. GEOTEXTILES, JUTE MAT, CLEAR PLASTIC COVERING).
<br />4. BEFORE SEEDING, INSTALL NEEDED SURFACE RUNOFF CONTROL MEASURES SUCH AS GRADIENT
<br />TERRACES, INTERCEPTOR DIKES, SWALES, LEVEL SPREADERS, AND SEDIMENT BASINS.
<br />5. THE SEED BED SHALL BE FIRM WITH A FAIRLY FINE SURFACE, FOLLOWING SURFACE ROUGHENING.
<br />PERFORM ALL OPERATIONS ACROSS OR AT RIGHT ANGLES TO THE SLOPE.
<br />6. FERTILIZERS ARE TO BE USED ACCORDING TO SUPPLIERS RECOMMENDATIONS. AMOUNTS USED SHOULD
<br />BE MINIMIZED, ESPECIALLY ADJACENT TO WATER BODIES AND WETLANDS.
<br />7. SEED SHALL NOT BE USED IN AREAS SUBJECT TO WEAR BY CONSTRUCTION TRAFFIC.
<br />8. APPLICABLE IN AREAS OF 10% OR LESS SLOPE FOR A MAXIMUM HORIZONTAL DISTANCE OF 100 FEET.
<br />IN STEEPER AREAS (>10% SLOPE), USE MULCH, NETTING, OR OTHER TREATMENTS SPECIFICALLY
<br />DESIGNED FOR STEEPER AND LONGER SLOPES.
<br />SEED MIXTURE FOR EROSION CONTROL
<br />NAME PROPORTIONS PERCENT PERCENT
<br />BY WEIGHT
<br />PURITY
<br />GERMINATION
<br />REDTOP (AGROSTIS ALBA)
<br />10%
<br />92%
<br />85%
<br />ANNUAL RYE (LOLIUM
<br />40%
<br />98%
<br />90%
<br />MULTIFLORUM)
<br />CHEWING FESCUE (FESTUCA
<br />40%
<br />98%
<br />90%
<br />RUBRA COMMUTATA)
<br />WHITE DUTCH CLOVER
<br />10%
<br />98%
<br />90%
<br />(TRIFOLIUM REPENS)
<br />MULCHING NOTES
<br />1. MULCH MATERIALS USED SHALL BE STRAW OR WOOD CELLULOSE FIBERS, AND SHALL BE APPLIED PER
<br />2016 WSDOT STANDARD SPECIFICATION 9-14 EROSION CONTROL AND ROADSIDE PLANTING. PROVIDE
<br />SOLID COVER OVER FINISH GRADE.
<br />2. MULCHING SHALL BE USED IMMEDIATELY AFTER SEEDING OR IN AREAS WHICH CANNOT BE SEEDED
<br />BECAUSE OF THE SEASON.
<br />3. ALL AREAS NEEDING MULCH SHALL BE COVERED BY OCTOBER 31.
<br />)W BYPASS
<br />NLET GRATE
<br />WATER
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<br />.� STORM DRAIN INLET PROTECTION (BMP C220: STORM DRAIN INLET PROTECTION)
<br />IVL SCALE: N.T.S.
<br />NOTES
<br />1. CATCH BASIN INSERTS SHALL BE REMOVED AT THE
<br />END OF THE PROJECT.
<br />2. CATCH BASIN INSERTS ARE ONLY TO BE INSTALLED IN
<br />DRAINAGE DEVICES PER THE MANUFACTURES'S
<br />RECOMMENDATIONS. CATCH BASIN INLET INSERTS
<br />SHALL BE INSTALLED IN CURB INLETS.
<br />3. CATCH BASIN INSERTS SHALL BE INSTALLED PRIOR TO
<br />CLEARING AND GRADING ACTIVITY, OR UPON
<br />PLACEMENT OF A NEW CATCH BASIN.
<br />4. SEDIMENT SHALL BE REMOVED FROM THE UNIT
<br />WHEN IT BECOMES ONE THIRD FULL OR IN
<br />ACCORDANCE WITH THE MANUFACTURES'
<br />INSTRUCTIONS.
<br />S. SEDIMENT REMOVAL SHALL BE ACCOMPLISHED BY
<br />REMOVING THE INLET INSERTS, EMPTYING, AND
<br />RE -INSTALLING IT INTO THE CATCH BASIN. DO NOT
<br />WASH SEDIMENT INTO STORM DRAINS WHILE
<br />CLEANING.
<br />6, SIZE THE BELOW INLET GRATE DEVICE (BIGD) FOR THE
<br />STORM WATER STRUCTURE IT WILL SERVICE.
<br />7. THE BIGD SHALL HAVE A BUILT-IN HIGH -FLOW RELIEF
<br />SYSTEM (OVERFLOW BYPASS).
<br />8. THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF
<br />THE BIGD WITHOUT SPILLING THE COLLECTED
<br />MATERIAL.
<br />9. PERFORM MAINTENANCE IN ACCORDANCE WITH
<br />STANDARD SPECIFICATION 8-01.3(15).
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<br />PUBLIC WORKS DEPARTMENT
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<br />STORM DRAIN INLET
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<br />PROTECTION
<br />LENGTH AS REQUIRED 100' C
<br />MAY BE REDUCED TO 50' MI
<br />SITES WITH LESS THAN ONE
<br />OF EXPOSED SOIL OR APPRC
<br />PLACE CONSTRUCTION GEO'
<br />STABILIZATION FROM THE E
<br />ROADWAY TO THE CONSTRL
<br />OR AS DIRECTED BY THE EN(--
<br />ISOMETRIC VIEW
<br />CONSTRUCTION ENTRANCE
<br />CONSTRUCTION ACCESS (BMP C105: CONSTRUCTION ENTRANCE)
<br />SCALE: N.T.S.
<br />ATTACH IN A MANNER THAT
<br />ASSURES FABRIC IS FIRMLY
<br />HELD BY THE BACKUP
<br />SUPPORT IN A WAY THAT
<br />REDUCES THE POTENTIAL
<br />FOR FABRIC TEARING
<br />POST SEE WSDOT STANDARD
<br />SPECIFICATIONS 8-01.3(9)A
<br />FASTEN GEOTEXTILE TO
<br />POST EVERY 6" IN O,C.
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<br />TEMPORARY SILT FENCE (BMP C233: SILT FENCE)
<br />Ivv J SCALE: N.T.S.
<br />GEOTEXTILE FOR SILT FENCE
<br />SEE STANDARD SPECIFICATION
<br />SECTION 9-33.2 (1), TABLE 6 -
<br />NOTES
<br />1. STABILIZED CONSTRUCTION ENTRANCE SHALL
<br />MEET THE REQUIREMENTS OF WSDOT STANDARD
<br />SPECIFICATION SECTION 8-01.3(7).
<br />INSTALL DRIVEWAY CULVERT
<br />IF THERE IS A ROADSIDE DITCH
<br />PRESENT
<br />30' MIN TYPICAL
<br />PERMEABLE BALLAST TYPICAL SEE
<br />STANDARD SPECIFICATION
<br />SECTION 9-03.9(2)
<br />PROVIDE FULL WIDTH OF
<br />INGRESS/EGRESS AREA
<br />15' MIN
<br />WSDOT STD PLAN 1-80.10-02 ACCEPTABLE SUBSTITUTE
<br />CITY OF EVERETT
<br />PUBLIC WORKS DEPARTMENT
<br />CONSTRUCTION ACCESS 201
<br />NOTES
<br />1, INSTALL THE ENDS OF THE SILT FENCE TO POINT
<br />SLIGHTLY UPSLOPE TO PREVENT SEDIMENT FROM
<br />FLOWING AROUND THE ENDS OF THE FENCE.
<br />2. PERFORM MAINTENANCE IN ACCORDANCE WITH
<br />WSDOT STANDARD SPECIFICATIONS 8-01.3(9)A
<br />AND 8-01.3(15).
<br />3. SPLICES SHALL NEVER BE PLACED IN LOW SPOTS
<br />OR SUMP LOCATIONS. IF SPLICES ARE LOCATED IN
<br />LOW OR SUMP AREAS, THE FENCE MAY NEED TO
<br />BE REINSTALLED UNLESS OTHERWISE APPROVED.
<br />4. INSTALL SILT FENCING PARALLEL TO MAPPED
<br />CONTOUR LINES.
<br />5. DURING EXCAVATION, MINIMIZE DISTURBING
<br />THE GROUND AROUND TRENCH AS MUCH AS IS
<br />FEASIBLE, AND SMOOTH SURFACE FOLLOWING
<br />EXCAVATION TO AVOID CONCENTRATING FLOWS.
<br />COMPACTION MUST BE ADEQUATE TO PREVENT
<br />UNDERCUTTING FLOWS.
<br />BACKUP SUPPORT
<br />(TYPICAL)
<br />SPLICED FENCE SECTIONS SHALL BE CLOSE ENOUGH TOGETHER
<br />TO PREVENT SILT LADEN WATER FROM ESCAPING THROUGH THE
<br />FENCE AT THE OVERLAP.
<br />SPLICE DETAIL
<br />WSDOT STO PLAN 1-30.10-02 ACCEPTABLE SUBSTITUTE
<br />EXCEPT STEEL POST FEOUND
<br />CITY OF EVERETT
<br />rr PUBLIC WORKS DEPARTMENT
<br />APPROVED G'RYANSA5S 'EAT-HERGRIff APAULWlIHEIM
<br />03/17/2017
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