20200697 Ver 1_Erossion Control Plan_20200617

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≈PN 15SYC 10DEAD TREESG 11SG 6OAK 11SYC 9POP 6POP 11PN 14PN 6PN 12SG 12PN 8H 8PN 24PN 6SG 10PN 6PN 8PN 6PN 6M 6ERB 15321321322326320328324322326324322328321330EXISTING LANDSCAPEBLOCK WALL(TO BE REMOVED)DECKDECKEXISTING 6' WOOD FENCELSLSLSCOCOCOEXISTINGBUILDING15' PVT. DRAIN EASEMENTBM 1998 PG 1186EXISTINGTOP OF BANKEXISTINGTOE OF BANKEXISTINGSTREAMCENTERLINEEXISTING LANDSCAPEBLOCK WALL(TO BE REMOVED)EXISTINGWETLANDSEXISTING 4'WOOD FENCEEXISTING 8" DIP SSBRICKPATIOBUFFERZONE 130'BUFFER ZONE 220'PROPOSEDSOIL LIFTSSOIL LIFTROCK BASEPROPOSEDCENTERLINEBRICKPATIOEXISTINGWETLANDSEXISTINGPONDTP TP TP
TPTPTPROCKSILT SCREENROCKSILT SCREENSILT FENCETREEPROTECTION2636CONSTRUCTIONENTRANCE1656561515JOB NO.SHEET NO.SCALEDESIGNED BYCHECKED BYDATE
DRAWN BYDATEREVISION DESCRIPTION
YOUR VISION ACHIEVED THROUGH OURS.
These plans and associated documents are the exclusive property of TIMMONS GROUP and may not be reproduced in whole or in part and shall not be used for any purpose whatsoever, inclusive, but not
5410 Trinity Road, Suite 102 | Raleigh, NC 27607
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North Carolina License No. C-1652
THIS DRAWING PREPARED AT THE
RALEIGH OFFICE
6-10-2020DOVERTON COURT
CITY OF RALEIGH - WAKE COUNTY - NC44363.005Becky WardAbrham AsfawBecky WardShane VandergriftFOR REVIEWONLY90% REVIEW SETC STREAMLROCK SILT SCREENRAW PUMPBASE FLOWSEDIMENT PUMPSPECIAL STILLING BASINWITH ROCK PADACTIVE WORK ZONE250' MAXPUMPZONE1. WORK AREA TO BE STABILIZED AT THE END OF EACH WORK DAY.2. ROCK SILT SCREENS REQUIRED FOR PUMP AROUND OPERATIONS ARE CONSIDERED INCIDENTAL TO PUMPING.3. STABLE OUTLET TO CONSIST OF ROCK PLACED IN CHANNEL FOR ENERGY DISSIPATION AND 45° ELBOW INSTALLATION AT THE END OF THE PIPING SO THAT THE WATER DISCHARGES VERTICALLY UP IN THE AIR. THE OUTLET WILLDISCHARGE WITHSTABLE OUTLET(NOTE 3)OR ON BEDROCKBE APPROVED BY THE DESIGNER PRIOR TO PUMPING.FLOWDIVERSION PUMPDEWATERINGAS NEEDEDINTAKE HOSESUMP HOLE OR POOLINLETSTREAM FLOWDISCHARGEHOSENOTES:Table 6.10aTemporary Seeding Specificationsfor Winter and Early SpringSeeding Mixture SpedesRate (lb/acre)Rye Grain120Mountains >2500 ft. <2500 ft.PiedmontCoastal Plain15-Feb to 15-May1-Feb to 1-May1-Jan to 1-May1-Dec to 15-AprTable 6.10a Temporary Seeding Specifications for SummerGerman Millet40MountainsPiedmontCoastal Plain15-May to 15-Aug1-May to 15-Aug15-Apr to 15-AugIn the Piedmont and Mountains, a small-stemmed sundangrass maybe substituted at a rate of 50lb/acre.Table 6.10a Temporary Seeding Specifications for Fall120MountainsCoastal Plain andPiedmont15-Aug to 15-Dec15-Aug to 30-DecIn the Piedmont and Mountains, a small-stemmed sundangrass maybe substituted at a rate of 50lb/acre.Rye GrainSeeding DatesSoil AmendmentsFollow recommendations of soil tests or apply 2 ton/acre groundagricultural limestone and 750 lb/acre 10-10-10 fertilizerMulchApply 4,000 lb/acre straw. Anchor straw by tacking with asphalt,netting or a mulch anchoring tool. Use 400 gallons of tack per acreor straw covered with pinned netting.MaintenanceRefertilize if growth is not fully adequate. Reseed, refertilize andmulch immediately following erosion or damage.Seeding Mixture SpedesSeeding DatesRate (lb/acre)Soil AmendmentsFollow recommendations of soil tests or apply 2 ton/acre groundagricultural limestone and 750 lb/acre 10-10-10 fertilizerMulchApply 4,000 lb/acre straw. Anchor straw by tacking with asphalt,netting or a mulch anchoring tool. Use 400 gallons of tack per acreor straw covered with pinned netting.MaintenanceRefertilize if growth is not fully adequate. Reseed, refertilize andmulch immediately following erosion or damage.MaintenanceRepair and refertilize damaged areas immediately. Topdress with50lb/acre of nitrogen in March. If it is necessary to extenttemporary cover beyond June 15, overseed with 50lb/acre Kobe(Piedmont and Coastal Plain)late February or early MarchMulchApply 4,000 lb/acre straw. Anchor straw by tacking with asphalt,netting or a mulch anchoring tool. Use 400 gallons of tack per acreor straw covered with pinned netting.Soil AmendmentsFollow recommendations of soil tests or apply 2 ton/acre groundagricultural limestone and 750 lb/acre 10-10-10 fertilizerSeeding DatesSeeding Mixture SpedesRate (lb/acre)TYPICAL PUMP AROUND OPERATIONNO SCALETEMPORARY SEEDING SPECIFICATIONSNO SCALE020'SCALE 1"=10'10'21CONSTRUCTION SEQUENCE:1.INSTALL ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES. LIMIT CLEARING AND LAND DISTURBING ACTIVITYTO THE AREA NECESSARY TO INSTALL THE MEASURES.2.COMMENCE LAND DISTURBING ACTIVITY.3.INSTALL ADEQUATE EROSION AND SEDIMENT CONTROL MEASURES AND/OR INCREASE MAINTENANCE FREQUENCY WHEREAPPROVED MEASURES FAIL TO PREVENT ACCELERATED EROSION, OFF-SITE SEDIMENTATION, OR REPETITIVENON-COMPLIANCE ISSUES.4.MOBILIZE TO THE STREAM AT 7314 DOVERTON COURT.5.PERFORM CLEARING, GRUBBING, DEMOLITION, AND DEBRIS REMOVAL AS SHOWN ON THE PLANS.6.INSTALL STREAM PUMP-AROUND OR OTHER STREAM DIVERSION MEASURE TO PROTECT WORK AREA ALONG STREAM.7.CONSTRUCT BENCH ON EAST SIDE OF STREAM AND STABILIZE.8.WORKING FROM UPSTREAM TO DOWNSTREAM RECONSTRUCT WEST BANK WITH SOIL LIFTS. INSTALL PLANTS DAILY IN SOILLIFTS AS WORK PROCEEDS.9.SEED AND MAT EMBANKMENT SLOPE.10.REMOVE TEMPORARY PUMP-AROUND.11.INSTALL REMAINING WOODY VEGETATION AS CALLED FOR ON THE PLANTING PLAN.12.SEED ALL DISTURBED NON-PAVED AREAS. SEEDING AND MULCHING SHALL BE PER THE PLANS AND SPECIFICATIONS.13.MODIFICATIONS TO THE PLANS SHALL BE REVIEWED BY ENGINEER AND CITY OF RALEIGH PROJECT MANAGER.14.MAINTAIN ALL EROSION AND SEDIMENT CONTROL MEASURES IN GOOD WORKING ORDER. SILT FENCE, INLET PROTECTION,AND OTHER SIMILAR MEASURES MUST BE CLEANED OUT BEFORE THEY ARE HALF FULL. CLOGGED STONE FILTERS MUST BEREFRESHED/REPLACED. SILT FENCE CAN NOT HAVE HOLES OR TEARS.15.REMOVE EROSION CONTROL MEASURES ONLY AFTER THE SITE IS STABILIZED AND APPROVAL HAS BEEN OBTAINED BY THECITY PROJECT MANAGER.GENERAL NOTES:1.FENCES: THE CONTRACTOR SHALL REMOVE AND RESET ALL FENCES AS NOTED IN THE PLANS AND/OR AS DIRECTED BYTHE ENGINEER. THE EXACT LOCATION AND DIMENSIONS OF THE THESE ITEMS TO BE REMOVED OR DISTURBED DURINGCONSTRUCTION SHALL BE RECORDED AND PHOTOGRAPHED BY THE CONTRACTOR PRIOR TO CONSTRUCTION.2.TREES, SHRUBS, AND HEDGES: THE CONTRACTOR SHALL PROTECT ALL TREES AND SHRUBS OUTSIDE OF THE LIMITS OFDISTURBANCE. THE CONTRACTOR IS ALSO REQUESTED TO SAVE ALL OTHER EXISTING TREES AND SHRUBS WHEREPOSSIBLE. TREE ROOTS EXPOSED AND/OR DAMAGED DURING CONSTRUCTION SHALL BE PRUNED USING EQUIPMENTSPECIFICALLY DESIGNED FOR PRUNING. ALL PRUNING SHALL BE ACCOMPLISHED BY AN ISA CERTIFIED ARBORIST.3.GRASSED SURFACE RESTORATION: ALL EXISTING GRASSED AREAS DISTURBED DURING CONSTRUCTION ARE TO BESEEDED AND MULCHED PER THE SPECIFICATIONS UNLESS OTHERWISE INDICATED ON THE DRAWINGS OR AS DIRECTEDBY THE ENGINEER.4.STOCKPILE AREAS: ALL STOCKPILE AREAS SHALL BE AT LEAST 50 FEET FROM ANY STREAM OR STORMWATERSTRUCTURE AND SHALL BE PROTECTED WITH APPROPRIATE EROSION CONTROL MEASURES.5.ALL CONSTRUCTION SHALL BE IN STRICT ACCORDANCE WITH CITY OF RALEIGH AND/OR NCDOT STANDARD DETAILS ANDSPECIFICATIONS.6.ANY DISTURBANCE WITHIN THE RIGHT-OF-WAY WILL BE REQUIRED TO BE REPLACED TO THE CITY OF RALEIGH AND/ORNCDOT STANDARDS AND INSPECTED.7.CONTRACTOR SHALL INSTALL EROSION CONTROL MEASURES IN ACCORDANCE WITH THE LATEST CITY OF RALEIGHSTANDARD DETAILS AS FOUND ON THE CITY WEBSITE:HTTP://WWW.RALEIGHNC.GOV/BUSINESS/CONTENT/PLANDEV/ARTICLES/DEVSERV/DRAWINGSSTANDARDDETAILSINDEX.HTMLEXISTING STREAM CENTERLINE8'' SANOHPPROPERTY LINEOVERHEAD WIREEXISTING SANITARY SEWERLIMITS OF DISTURBANCEEXISTING TREE LINEEXISTING TREESPROPOSED ROCKTOE/CHECK DAMPROPOSED CENTERLINEPROPOSED CONTOURSSILT FENCECRITICAL ROOT ZONETREE REMOVALLEGEND3EROSION CONTROL PLAN TPTREE PROTECTIONDISTURBED AREA = 8,634 SF.EXISTING SURVEYED CONTOURS330NC FLOODMAP CONTOURS3301"=10'ROCK SILT SCREEN