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WPO202000053 Plan - VSMP 2022-08-30
GENERAL NOTES OWNER: STANLEY MARTIN COMPANIES LLC 11710 PLAZA AMERICA DRIVE, SUITE 1100 RESTON, VIRGINIA 20190 DEVELOPER. STANLEY MARTIN HOMES 404 PEOPLE PLACE, SUITE 303 CHARLOT7ESWLLE, VA 22911 ENGINEER: COLLINS ENGINEERING 200 GARRETT ST, SUITE K CHARLOTTESVILLE, VA 22902 (434) 293-3719 TAX MAP NO.: 055CO-03-00-000AO - STANLEY MARTIN HOMES LLC (16.278 AC) 056A1-01-00-02500 - STANLEY MARTIN HOMES LLC (1.84 AC) 056A1-01-00-029RO - STANLEY MAR77N HOMES LLC (3.030 AC) POR77ON OF EXISTING CLING LANE R/W - 0.343 ACRES TOTAL AREA: PHASE 11A (RECORDED IN MAY 2022) IS 4.953 ACRES PHASE 11B & PHASE Ill - NET ACREAGE IS 21.284 ACRES PHASE l (RECORDED IN JANUARY 2020) IS 10.377 ACRES R-6 RESIDENTIAL, STANDARD LEVEL - CLUSTER DEVELOPMENT WITH FLOODPLAIN AND STEEP SLOPE OVERLAY DISTRICTS. PREVIOUS ZONING APPROVALS FOR THE PLEASANT GREEN DEVELOPMENT INCLUDE: SP1990-00103 LOD2014-00009 LOD2021-00018 SUB2015-00029 SUB2017-00099 FDP2021-00004 PROPOSED USE: TOTAL UNITS WITHIN PHASE 11B & PHASE 111 ARE 173 UNITS - 145 SINGLE FAMILY ATTACHED RESIDENTIAL UNITS (VILLA UNITS AND TOWNHOUSE UNITS) + 28 SFD UN17S TOTAL UNITS WITHIN PHASE IIA: 24 UNITS - (14 SFA UNITS & 10 SFD UNITS) PRESERVED/MANAGED SLOPES: THERE ARE COUNTY DEFINED PRESERVED AND MANAGED STEEP SLOPES WITHIN THE LIMI7S OF THE PROPERTY, AS SHOWN ON SHEET 2. OFF-S17E PRESERVED AND MANAGED STEEP SLOPES HAVE ALSO BEEN SHOWN & LABELED ON THE EXISTING CONDITIONS SHEET. THIS PLAN DOES NOT PROPOSE TO IMPACT PRESERVED STEEP SLOPES. THE SMALL, ISOLATED MANAGED STEEP SLOPES LOCATED ON IMP 55C-03-A IS PROPOSED TO BE IMPACTED. BUILDING HEIGHTS, MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 35 FEET SETBACKS. FRONT.- 5' MINIMUM (25' MAXIMUM FROM R/W OR EDGE OF SIDEWALK) SIDE: NONE - MIN. 10' BUILDING SEPARATION (ANY BUILDING THAT EXCEEDS 35' IN HEIGHT SHALL BE SEPARATED FROM ANY OTHER BUILDING BY 10' PLUS 1' FOR EACH FOOT THE BUILDING EXCEEDS 35' IN HEIGHT) REAR. 20' MINIMUM GARAGE. 18' MINIMUM FROM THE R/W OR THE EXTERIOR EDGE OF THE SIDEWALK SUBDIVISION STREETS: CURB & GUTTER WATERSHED: LICKINGHOLE CREEK WATER SUPPLY WATERSHED AGRICULTURAL/ FORESTAL DISTRICT.• NONE TOPO & SURVEY. THE BOUNDARY LINE, PARCEL INFORMA77ON AND TOPOGRAPHY WERE PROVIDED BY ROUDABUSH, GALE AND ASSOCIATES IN JANUARY OF 2019. THIS INFORMATION WAS FIELD VERIFIED ON NOVEMBER 13, 2020. DATUM: NAD 83 EXISTING VEGETATION. PARTIALLY WOODED WITH (2) RESIDENCES ON THE PROPERTY AND EXISTING GRAVEL DRIVEWAYS. LIGHTING: NO STREET LIGH77NG IS PROPOSED WITH THE DEVELOPMENT. ALL PORCH LIGHTS MUST MEET THE REQUIREMENTS OF SECT70N 4.17 AND BE BELOW 3000 LUMENS. PHASING. THIS PROPERTY SHALL BE DEVELOPED WITHIN 3 PHASES. CURRENTLY, THIS PROPOSED PLAN INCLUDES PHASES 2 & J. BUILDING SITES • EACH PARCEL CONTAINS A BUILDING SITE THAT COMPLIES WITH THE REQUIREMENTS OF SECTION 4.2.1 OF THE ALBEMARLE COUNTY ZONING ORDINANCE. BURIAL SITES: A CEMETERY EXISTS ON THE PROPERTY (PARCEL 7MP 56A-1-26). THE CEMETERY SHALL REMAIN AND WILL BE PRESERVED WITH THE DEVELOPMENT. STREAM BUFFERS. THE 100' STREAM BUFFERS SHOWN HEREON SHALL BE MANAGED IN ACCORDANCE WITH THE ALBEMARLE COUNTY WATER PROTEC77ON ORDINANCE FLOODPLAIN: A PORTION OF THE PROPERTY IS LOCATED WITHIN A FLOODPLAIN ZONE AS SHOWN ON FEMA MAP#51003CO229D, DATED FEBRUARY 4, 2005. RETAINING WALLS. RETAINING WALLS ARE PROPOSED UNDER A SEPARATE PLAN AND ARE SHOWN FOR INFORMAT70NAL PURPOSES ONLY WITH THIS SET. LANDSCAPING. STREET TREES SHALL BE PROPOSED Wl7H THE FINAL SITE PLAN ALONG THE NEIGHBORHOOD STREETS IN ACCORDANCE WITH ALBEMARLE COUNTY LANDSCAPING REQUIREMENTS SET FORTH IN SECT70N 32.7.9 OF THE COUNTY CODE. NOTE.• EACH LOT SHALL HAVE AN INDIVIDUAL TRASH CONTAINER. IMPERVIOUS AREAS: PHASE I EXIS77NG BUILDING & STRUCTURES 2,975 SF PROPOSED ROADWAYS & PARKING LOT 75,500 SF PROPOSED SIDEWALK 23,375 SF PROPOSED BUILDINGS 56,520 SF PROPOSED DRIVEWAYS 17,800 SF FUTURE IMPERVIOUS AREAS 10,650 SF EMERGENCY ACCESS ROAD 11,575 SF TOTAL 198,395 SF (4.55 AC) PHASE ll PROPOSED ROADWAYS & SIDEWALKS 121,175 SF PROPOSED RESIDENCES 132,140 SF PROPOSED DRIVEWAYS 35,280 SF TOTAL 288,595 SF (6.63 AC) PHASE 111 PROPOSED ROADWAYS & SIDEWALKS 14,650 SF PROPOSED RESIDENCES 67,925 SF TOTAL 82,575 SF (1.90 AC) STORMWATER MANAGEMENT, A STORMWATER MANAGEMENT PLAN IS PROPOSED WITH THIS WPO PLAN TO TREAT PHASES lI & 111 OF 7HE PLEASANT GREEN DEVELOPMENT. ONE WET POND AND TWO UNDERGROUND DETENTION SYSTEMS ARE PROPOSED TO MEET MINIMUM STORMWATER QUANTITY REQUIREMENTS FOR PHASES ll AND Ill. THE WET POND, A DOWNSTREAM CONSERVATION AREA BELOW THE POND's LEVEL SPREADER, AND TWO VEGETATED FILTER STRIPS BELOW THE TWO UNDERGROUND DETENTION SYSTEMS' LEVEL SPREADERS ARE PROPOSED WITH THIS WPO PLAN TO MEET MINIMUM STORMWATER QUALITY REQUIREMENTS FOR PHASES II AND Ill. ALSO, 7HERE IS A SURPLUS OF WATER QUALITY CREDIT THAT WILL BE APPLIED TO 7HE CONNECTOR ROAD VSMP PLAN ASSOCIATED WITH THIS DEVELOPMENT (WPO 201900027). LAND DISTURBANCE., PHASE l LIM17S OF DISTURBANCE = 1315 AC (WPO 201900003) PHASE I BORROW AREA=2.36 AC. (AMENDMENT fl TO WPO 201900003) CONNECTOR ROAD LIMITS OF DISTURBANCE = 1.99 AC (WPO 201900027) PHASES Y & III LIMITS OF DISTURBANCE = 16.99 AC (THIS PLAN) OFFSITE EASEMEN T.• ALL PROPOSED GRADING SHALL BE CONSTRUCTED ON SI7E OR WI7HIN EXIS77NG RIGHT-OF-WAY. NO OFFS17E EASEMENTS ARE PROPOSED WITH THIS DEVELOPMENT. NOTES, 1) THIS PROPERTY DOES NOT LIE WITHIN AN AGRICULTURAL AND/OR FOREST DISTRICT. 2) ONLY (1) DWELLING PER LOT SHALL BE PERMITTED. 3) ALL PROPOSED EASEMENTS SHALL BE DEDICATED TO PUBLIC USE. 4) STREET TREES SHALL BE PROVIDED ALONG ALL 7HE PUBLIC STREETS 40' O.C. IN ACCORDANCE W77H WOT AND ALBEMARLE COUNTY STANDARDS. 5) THIS PROPERTY IS NOT LOCATED WITHIN A DAM INUNDATION ZONE. 0 PLEASANT GREEN PHASE II VSMP PLAN AMENDMENT WP0202000053 AMENDMENT #1 0 FJ LEGEND U WHITEHALL DISTRICT ALBEMARLE COUNTY, VIRGINIA ........ ......� ❑ ❑ ` n n❑ �I I \', ❑ Tf � i,❑❑Iii ❑ r�l\'� ❑ i EJ i! ❑ j ----- _ - - i .. --- oo — \ o r - 1 PEACH TREEDRI L_..__-- i— - _. -' \ ... m z I v % % j \\ ❑ \ D DRY- - —-- — ' ORCHAR El\ i SHEET LAYOUT SCALE: 1" = 150' EROSION CONTROL PLAN/METRICS SA SAFETY FENCE 3.01 OP OUTLET PR07EC77ON 3.18 EDGE OF PAVEMENT CURB 200 PROPOSED CONTOUR 0 SEDIMENT TRAP OR BASIN CRS ❑ CONSTRUCTION ROAD STABILIZA77ON 3.03 RR RIPRAP J. SOIL BOUNDARY BUILDING DRAINAGE DIVIDE CE CONSTRUC77ON ENTRANCE 3.02 RR U77LITY STREAM CROSSING 3.25 PROPOSED ASPHALT LIMITS OF CLEARING�GRADING SF SILT FENCE 3.05 SA TEMPORARY SEEDING 331 STREAM BANKS / LIMITS OF DISTURBANCE DIVERSION DIKE IP INLET PRo7EcnoN 3.07 Ps PERMANENT SEEDING 332 100' WPO BUFFER RIGHT-OF-WAY DIVERSION _ _ _ PROPOSED EASEMENT, o o— TREE PROTECTION DD TEMPORARY DIVERSION DIKE 3.09 O TREE PRESERVATION J. 38 VARIES WITH SHEET DRAINAGE PIPE p o 0 SAFETY FENCE RWD 7EMPORARY RIGHT-OF-WAY DIVERSION 3.11 DC AND PR07ECT70N DUST CONTROL 3.39 BENCH MARK �--- --- SILT FENCE PROPERTY LINE VDOT STANDARD STOP SIGN ST TEMPORARY SEDIMENT TRAP 3.13 • WRGINIA EROSION & SEDIMENT CONTROL PROPOSED HANDICAP PROPOSED CONCRETE SB SEDIMENT BASIN 3.14 HANDBOOK SPECIFICA770N NUMBER PARKING SPACE STRIPING 0 0 0 0 0 0 0 100 YR. FLOODPLAIN INLET PR07EC770N RIPRAP, OUTLET PROTECTION OR CONSTRUCT70N ROAD - -200- - - EXISTING CONTOUR STABILIZATION 0 SITE L HILLS CRU.LL I ►zfl CROSS NG OCK AYLANDS WAYLANn Pe. GRANT , SITE Crozet R E A PARK V I L L VICINITY MAP SCALE: 1"=2000' Sheet List Table Sheet Number Sheet Title 1 COVER 2 EXISTING CONDITIONS & DEMOLITION PLAN 3 EXISTING CONDITIONS & DEMOLITION PLAN 4 OVERALL SITE LIMITS OF DISTURBANCE AREA 5 EROSION & SEDIMENT CONTROL NOTES, NARRATIVE & DETAILS 6 PHASE I EROSION & SEDIMENT CONTROL PLAN 7 PHASE I EROSION & SEDIMENT CONTROL PLAN 8 PHASES II EROSION & SEDIMENT CONTROL PLAN 9 PHASES II EROSION & SEDIMENT CONTROL PLAN 10 PHASES III EROSION & SEDIMENT CONTROL PLAN 11 PHASES III EROSION & SEDIMENT CONTROL PLAN 12 EROSION & SEDIMENT CONTROL PLAN DETAILS 13 EROSION & SEDIMENT CONTROL PLAN DETAILS 13A EROSION & SEDIMENT CONTROL PLAN DETAILS 14 PRE -DEVELOPMENT STORMWATER MANAGEMENT PLAN (WATER QUANTITY) 15 POST -DEVELOPMENT STORMWATER MANAGEMENT PLAN (WATER QUANTITY) 16 STORMWATER MANAGEMENT PLAN (WATER QUALITY) 17 STORMWATER MANAGEMENT DETAILS 18 STORMWATER MANAGEMENT DETAILS 19 STORMWATER MANAGEMENT DETAILS 20 UNDERGROUND DETENTION SYSTEM STANDARD NOTES & DETAILS 21 MITIGATION PLAN 22 PROPOSED EASEMENTS 23 PROPOSED EASEMENTS 24 PROPOSED EASEMENTS 11 * *GRADING & DRAINAGE PLAN 12* *GRADING & DRAINAGE PLAN 13* *GRADING & DRAINAGE PLAN 28 TOTAL NUMBER OF SHEETS *THE GRADING & DRAINAGE PLAN SHEETS HAVE BEEN ADDED TO THIS SET FOR INFORMATIONAL PURPOSES ONLY. THESE SHEETS DEMONSTRATE THAT POSITIVE DRAINAGE HAS BEEN PROVIDED AWAY FROM 7HE HOUSES FOR A MINIMUM OF 10'. THESE SHEETS ALSO SHOW THE TOP & BOTTOM ELEVA77ONS OF THE RETAINING WALLS. APPROVALS DATE DEPARTMENT OF COMMUNITY DEVELOPMENT PLANNER/ZONING ENGINEER INSPECTIONS ARB DEPARTMENT OF FIRE RESCUE ALBEMARLE COUNTY SERVICE AUTHORITY VIRGINIA DEPARMENT OF TRANSPORTATION HEALTH DEPARTMENT SCOTT/R. CT�LLINS'Z No. 35791 a p 7/29/22 j `o �'sl�nreT. 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I I I i ' I I ❑ I I \ ��\ ,/ \ \ \ /,' \ SHEET N0. L i nch © LOO . , � , ' , , ' ' � , v�1J `V J I I I I I 1 I `\\ `\ I , 1 EROSION & SEDIMENT CONTROL EROSION CONTROL NOTES DESCRIPTION OF EROSION & SEDIMENT EROSION CONTROL NOTES & NARRATIVE 1992 3.38 MEASURES: 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE CONTROL MEASURES: PROJECT DESCRIPTION: PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF THE PURPOSE OF THIS LAND DISTURBANCE ACTIVITY IS TO CONSTRUCT THE RESIDENTIAL HOMES AND THEIR CORRESPONDING INFRASTRUCTURE FOR FENCING AND ARMORING STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. EROSION AND SEDIMENT CONTROL MEASURES: PHASE ll & Ill OF THE PLEASANT GREEN DEVELOPMENT IN CROZET, VA. THIS PROJECT PROPOSES TO DISTURB 16.99 ac. OF LAND, IN ADDITION TO ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND IT IS ANTICIPATED THAT THE CONTRACTOR WILL USE A CONSTRUCTION ENTRANCE, THE 15.51 cc. ALREADY PERMITTED (13.15 cc. ONSITE + 2.36 cc. OFFSITE). THE PROJECT WILL BEGIN ITS CONSTRUCTION WITH THE PROPOSED HANDBOOK. STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE RIPRAP, OUTLET PROTECTION, DIVERSIONS, TWO SEDIMENT TRAPS, THREE ESC MEASURES IMMEDIATELY FOLLOWING PLAN APPROVAL, WHICH IS ANTICIPATED TO BE IN THE FALL OF 2022. THE WORK IS ANTICIPATED TO BE THE FOLLOWING: VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR COMPLETED WITHIN 18 MONTHS AND TO CONCLUDE IN THE WINTER/SPRING OF 2023. THE CONVERSION OF THE TEMPORARY SEDIMENT BASINS TO 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. SEDIMENT BASINS, INLET PROTECTIONS, AND SILT FENCES TO CONTROL SURFACE PERMANENT SWM FACILITIES MAY OCCUR AT A LATER DATE IF PHASE Ill's CONSTRUCTION OCCURS DURING THIS TIME FRAME. 301 SAFETY FENCE- J. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL EXISTING SITE CONDITIONS.• A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT 1N£ UNDESIRABLE USE OF AN EROSION 4. AS THE FIRST STEP IN CLEARING. A COPY OF 774E APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE LAND DISTURBANCE AC77VI17ES. STOCKPILE LOCATIONS SHALL BE ON SITE AND 774E AREA OF THE PROPOSED DEVELOPMENT CONSISTS OF OPEN FIELDS AND EXISTING WOODS WITH LIGHT UNDERBRUSH. THIS SITE GENERALLY I CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE MAINTAINED ON THE SITE AT ALL TIMES SHALL BE STABILIZED WITH A TEMPORARY VEGETA77VE COVER. TEMPORARY SLOPES FROM THE NORTH TO POWELLS CREEK LOCATED ALONG THE WESTERN PROPERTY LINE. THE SITE IS GENERALLY GENTLY SLOPED AND IS OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF POTENTIAL ACCESS BY THE PUBLIC. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR STOCKPILE AREAS THAT ARE USED FOR STORING SOIL UNTIL A LATER TIME FOR SPREADING WILL REQUIRE MAINTENANCE & SHALL BE SURROUNDED BY SILT WELL DRAINED. ADJACENT AREAS: I DRIP UNE I IiIiii I WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION FENCE A T ALL TIMES. PERMANENT SEEDING WILL BE PERFORMED FOR ALL THIS S17E IS BORDERED ON THE EAST BY RAILROAD TRACKS AND EXISTING RESIDENTIAL DEVELOPMENT. POWELLS CREEKS EXISTS TO THE WEST. 3.02 CONSTRUCTION ENTRANCE: CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN THE EXISTING PHASE I PLEASANT GREEN DEVELOPMENT EXISTS TO THE SOUTH AND EAST. SILT FENCE WITH WIRE BACKING, DIVERSIONS, SEDIMENT A STABILIZED GRAVEL CONSTRUCTION ENTRANCE LOCATED AT POINTS OF APPROVING AUTHORITY. AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE CONSTRUCTION TRAPS, SEDIMENT BASINS, INLET CONTROLS, AND VARIOUS 07HER ESC MEASURES ARE PROPOSED TO LIMIT THE POTENTIAL FOR CONTAMINA77ON I VEHICULAR INGRESS AND EGRESS ON A CONSMUC770N SITE TO REDUCE THE 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLA77ON OF ANY ADD177ONAL EROSION ACT7Vl T7ES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR OF THESE ADJACENT PROPERTIES AND WATERWAYS. SNOW FENCE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTA7ON AS ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FORA YEAR OR MORE. OFFSATE LAND DISTURBANCE, I VEHICLES OR RUNOFF. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT TRANSPORTED ONTO 7. DETERMINED BY THE PLAN APPROVING AUTHORITY. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. OFFSATE LAND DISTURBANCE IS LIMITED TO PUBLIC RIGHT-OF-WAY AND AREAS LOCATED WITHIN THE OVERALL PLEASANT GREEN BOUNDARY. PUBLIC ROADWAYS. AT ALL TIMES DURING LAND DISTURBING AC771477ES AND DURING S17E DEVELOPMENT TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL SOILS.- UN77L FINAL STABILIZA7ON IS ACHIEVED. BE LEFT DORMANT FOR MORE THAN SEVEN DAYS THESE AREAS SHALL BE SEE SOIL DESCRIP77ONS ON THIS PAGE AND THE PHASE I EROSION & SEDIMENT CONTROL PLAN FOR BOUNDARIES, SOIL TYPES AND GENERAL SOIL ON 00 3.03 CONSTRUCTION ROAD STABILIZATION: &DURING DEWA7ERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED DETAILS. �"" THE TEMPORARY STABILIZA7ON OF ACCESS ROADS, SUBDIVISION ROADS, FILTERING DEVICE. SEEDED WITH FAST GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING CRITICAL AREAS: I PON PARKING AREAS, AND OTHER S17E VEHICLE 7RANSPORT4770N ROUTES 1117H 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY OF THOSE AREAS. SELECTI0N OF SEED MIXTURE WILL DEPEND ON THE TIME OF POWELLS CREEK AND ITS IMMEDIATELY ADJACENT WETLANDS ARE LOCATED ON THE PROPERTY. THESE ARE LOCATED DOWNIGRADIENT FROM THE •011 so STONE IMMEDIATELY AFTER GRADING TO REDUCE EROSION OF TEMPORARY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS YEAR APPLIED. PROPOSED DEVELOPMENT AND ARE CONSIDERED CRI77CALLY SENSI77✓E AREAS. THE EXISTING ADJACENT RESIDENTAL LOTS, THE RAILROAD BOARD FENCE IIIII ROADBEDS BY CONS7RUC770N TRAFFIC DURING WET WEATHER AND TO REDUCE OR CLEANUP TO MAINTAIN THE EFFEC77VENESS OF THE EROSION CONTROL DEVICES TRACKS/PROPERTY AND THE EXIS77NG ONS17E STRUCTURES PROPOSED TO REMAIN WITH PHASE ll DEVELOPMENT ARE ALSO CRITICAL AREAS. THE 'AaM ON EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN THE 77ME OF INITIAL GRADING AND FINAL STABILIZATION. USE WHEREVER 10. SHALL BE MADE IMMEDIATELY. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. J.01 SAFETY FENCE - SAFETY FENCE IS PROPOSED AROUND THE SEDIMENT CONTRACTOR SHALL GIVE EXTRA ATTENT70N AND CAU77ON IN AND AROUND THESE CRI77CAL AREAS TO ENSURE SEDIMENT IS NOT DEPOS17ED ON CORD FENCE STONE -BASE ROADS OR PARKING AREAS ARE CONSTRUCTED, WHETHER 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL BASINS AND SEDIMENT TRAPS THEM. 7REE PROTEC7ON FENCING, SILT FENCING, DIVERSIONS AND SEDIMENT TRAPPING DEVICES SHALL ALSO BE INSTALLED AS A FIRST STEP IN PlarnC FENCE PERMANENT OR TEMPORARY, FOR USE BY CONSTRUC7ON TRAFFIC SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND LAND DISTURBANCE TO ENSURE THESE CRITICAL AREAS ARE MAINTAINED. OTHER DEBRIS. 3.02 CONSTRUCT70N ENTRANCE - TO REDUCE THE AMOUNT OF MUD SEQUENCE OF CONSTRUCTION: CORRECT METHODS OF TREE FENCING 3.05 SILT FENCE., 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLE77ON TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. 1. CONTRACTOR SHALL NOTIFY THE ALBEMARLE COUNTY COMMUNITY DEVELOPMENT ENGINEERING DEPARTMENT TO SCHEDULE A A TEMPORARY SEDIMENT BARRIER CONSIS77NG OF A SYN7HET7C FILTER FABRIC PER ZONING ORDINANCE SEC77ON 5.1.28. 303 CONSTRUCTION ROAD STABILIZATION - TO REDUCE THE EROSION OF PRE -CONSTRUCTION MEETING. STRETCHED ACROSS AND ATTACHED TO SUPPOR77NG POSTS AND ENTRENCHED, 13. ALL INERT MATERIALS SHALL BE 7RANSPORTED IN COMPLIANCE WITH SEC77ON 13-301 TEMPORARY ROADBEDS BY CONS7RUCTlON TRAFFIC AND TO REDUCE THE 2• PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE PR07ECT70N FENCING SHALL BE INSTALLED. TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED OF THE CODE OF ALBEMARLE. J. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCT70N PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON It 1 �`11 / AREAS DURING CONSTRUCTION OPERA7ONS IN ORDER TO PREVENT SEDIMENT 14. BORROW, FILL OR WASTE AC77WTY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN THE THE PROJECT. VI II' FROM LEAVING THE SI7E, AND TO DECREASE THE VELOCITY OF SHEET FLOWS SHALL BE LIMITED TO THE HOURS OF 7:00 AM TO 9: 00 PM. 77ME OF INI77AL GRADING AND FINAL STABILIZATION. CONSTRUCTION ROAD 4, INSTALLA77ON OF THE PROPOSED CONSTRUCTON ENTRANCE AND ADJACENT SEDIMENT TRAP A' SHALL OCCUR NEXT. THE CONTRACTOR SHALL AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS 15. BORROW, FILL OR WASTE AC77WTY SHALL BE CONDUCTED IN A SAFE MANNER THAT STABILIZATION WILL BE APPLIED TO THE CONTRACTOR PARKING &STAG/NG APPLY CONS7RUC770N ROAD STABILIZA AS NEEDED TO THE CONS7RUC770N ENTRANCE AND CONTRACTOR PARKING STAGING AREA. / SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS AND DAMAGE TO ANY AREAS AS NEEDED. CONTRACTOR SHALL ENSURE THE CONSTRUC7ON ENTRANCE DRAINS TO AN ADEQUATE E&S MEASURE, AS SHOWN. CONS7RUCT7ON ENTRANCE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 305 SILT FENCE- SILT FENCE IS PROPOSED, WHERE SHOWN ON THE PLANS. TO BE INSTALLED WHERE CONS7RUCT7ON VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS PROVISIONS SHALL BE MADE TO MINIMIZE THE ' ACCORDANCE WITH THE VIRGINIA EROSION &SEDIMENT CONTROL HANDBOOK 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL MAINTAIN REMOVE OR 307 STORM DRAIN INLET PROTECTION- STORM GRAIN INLET PR01ECT70N IS TRANSPORT OF SEDIMENT BY VEHICULAR 7RACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD (VEHICULAR) &00 (VESCH). CONVERT TO PERMANENT STORMWA7ER MANAGEMENT FACILITIES WHERE APPLICABLE SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE Q SHOWN ON THE PLANS WHEN INLETS ARE CONSTRUCTED BUT THEIR SITE's SHOVELING OR SWEEPING AND 7RANSPOR7ING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER dp 3.07 STORM DRAIN INLET PROTECTION: SALE OF ANY LOT, UNIT, BUILDING OR 07HER PORTION OF THE PROPERTY. CONTRIBUTING DRAINAGE AREA IS S77LL BEING STABILIZED. SEDIMENT IS REMOVED IN THIS MANNER. so III A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING 3.11 TEMPORARY RIGHT OF WAY DIVERSION- ARIGHT -OF -WAY DIVERSION IS 5. THE /N177AL ESC CONSMUC770N MEASURES, AS SHOWN ON THE PHASE I EROSION & SEDIMENT CONTROL PLAN, SHALL BE INSTALLED NEXT. ~ AN DRAIN DROP INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING lS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO THE CONTRACTOR SHALL BEGIN BY INSTALLING THE PERIMETER SlL7 FENCE AND TREE PR07EC770N PERIMETER MEASURES INTENDED TO TRAP w CORRECT TRUNK ARMORING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZA 77ON OF THE CONSIST A 50/50 MIX OF ANNUAL RYGRASS AND CEREAL WINTER RYE, OR IN MARCH PROPOSED ACROSS THE CONSTRUCTION ENTRANCE, WHERE SHOWN ON THE SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE AC77VITY AND SHALL BE MADE FUNCTIONAL BEFORE 00 10 DISTURBED AREA. INLET PR07EC77ON APPLIES WHERE STORM DRAIN INLETS AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF PLANS. UPSLOPE LAND DISTURBANCE TAKES PLACE. TRIANGULAR BOARD FENCE ARE TO BE MADE OPERA77ONAL BEFORE PERMANENT STABILIZATION OF THE GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 8OLBS/100SF. ALTERNA77VES 312 DIVERSION- PERIMETER DIVERSIONS ARE PROPOSED WHERE SHOWN ON THE 6. ONCE THE PERIMETER EROSION CONTROL SILT FENCE AND TREE PR07ECT70N HAVE BEEN INSTALLED AND SEDIMENT TRAP A' INSTALLED WITH CORRESPONDING DISTURBED DRAINAGE AREA. ARE SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. PLANS. THE CONSTRUC7ON ENTRANCE, AND THE COUNTY INSPECTOR HAS APPROVED THESE MEASURES, LIGHT CLEARING AND LAND DISTURBANCE 3.11 TEMPORARY RIGHT-OF-WAY DIVERSION: 18. PERMANENT STABILIZA 77ON SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICUL77JRAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBSII000SF, J.13 SEDIMENT TRAP- TWO SEDIMENT TRAPS ARE PROPOSED. MAY BEGIN FOR THE REMAINING PER/METER CONTROLS THE CONTRACTOR SHALL BEGIN WITH THE /NSTALLA770N OF SEDIMENT BASINS B; 'C; 'E, Source: Va. DSWC Plate 3.38-2 A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONSTRUCTED INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FER77LIZER SHALL BE APPLIED J. 14 SEDIMENT BASIN- THREE SEDIMENT BASINS ARE PROPOSED. D', AND SHOWN ON THE PHASE I ESC PLAN. FOLLOWING THE INSTALLA77ON OF THESE MEASURES, THE CONTRACTOR SHALL INSTALL THEIR 1992 3.02 ACROSS DISTURBED RIGHTS -OF -WAY AND SIMILAR SLOPING AREAS. TO AT 1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT CONTRIBU77NG DIVERSIONS AND ANY REMAINING SILT FENCE. FOLLOWING THIS, THE CONTRACTOR SHALL INSTALL ANY REMAINING EROSION SHORTEN THE FLOW LENGTH WITHIN A SLOPING RIGHT-OF-WAY, THEREBY SEEDING SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 J. OUTLET PRO7ECT10N-OUTLET PR07EC770N IS PROPOSED AT THE OUTLET OF CONTROL ITEMS AS SHOWN ON THE PHASE I EROSION CONTROL PLAN. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL REDUCING THE EROSION POTENTIAL DIVERTING STORM RUNOFF TO A OR TALL AND OR SLAW THE SEDIMENT BASIN. SEE THE ESC PLAN FOR THE DESIGN LOCATION. BE IMPLEMENTED AS REQUIRED. STABILIZED OUTLET. GENERALLY, EARTHEN DIVERSIONS ARE APPLICABLE WHERE MULCH ISFTOOUE BE APPLIED5ATPERENNIAL 80L S/100SF.GRASS ALTERNATIVES AREYSUBJECT TO J.19 RIPRAP- RIPRAP IS PROPOSED AT THE OUTLET OF THE SEDIMENT BASIN. 7 ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED & ARE OPERATIONAL, DRAINAGE IS PROPERLY CONVEYED TO THESE STONE CONSTRUCTION ENTRANCE THERE WILL LITTLE NO CONSTRUCTION TRAFFIC WITHIN 774E APPROVAL BY THE EROSION CONTROL INSPECTOR. J. 32 PERMANENT SEEDING -PERMANENT SEEDING IS REQUIRED AND PROPOSED MEASURES, AND THE ESC INSPECTOR HAS GRANTED APPROVAL, THE CONTRACTOR CAN BEGIN CLEARING THE REMAINDER OF THE SITE RE RIGHT-OF-WAY. GRAVEELL STRUCTURES AARE MORE APPLICABLE TO ROADS AND 19. MAINTENANCE., ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH 8. AFTER CLEARING THE PROPOSED AREAS, THE CONTRACTOR CAN BEGIN ROUGH GRADING THE SITE TO THE CONTOURS SHOWN ON THE PHASE OTHER RIGHTS -OF -WAY WHICH ACCOMMODATE VEHICULAR TRAFFIC RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE WITH THIS PLAN. lI EROSION & SEDIMENT CONTROL PLAN. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND REPAIRED IMMEDIATELY. SILT ]RAPS ARE TO BE CLEANED WHEN 50% OF THE WET 338 TREE PRESERVA770N AND PROTECTION- TREE PR07ECTlON IS PROPOSED DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. ADDl770NALL Y, THE 70' MIN. EXISTING PAVEMENT 3.12 DIVERSION: STORAGE VOLUME IS FILLED WITH SEDIMENT ALL SEEDED AREAS ARE TO BE WITH THIS PLAN. SEE THE ESC PLAN FOR THE REQUIRED LOCAT70NS PREVIOUSLY INSTALLED SEDIMENT BASINS 8' 'C', D', AND 'E', AND SEDIMENT TRAP A' AND PERIMETER DIVERSIONS SHALL REMAIN A ' _5:1 A CHANNEL CONSTRUCTED ACROSS A SLOPE WITH A SUPPOR77NG EARTHEN RIDGE ON THE LOWER SIDE. TO REDUCE SLOPE LENGTH AND TO INTERCEPT RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND J. DUST CON7ROL-DUST CONTROL IS REQUIRED AND PROPOSED WITH THIS OPERA77ONAL AT ALL TIMES THROUGHOUT CONSTRUCTION AND SHALL BE MAINTAINED THROUGHOUT THEIR LIFE CYCLES. THIS WILL CON77NUE AND DIVERT STORMWA TER RUNOFF TO STABILIZED OUTLETS AT NON -EROSIVE DIVERSION DYKES WHICH ARE COLLEC77NG SEDIMENT TO HALF THEIR HEIGHT MUST BE PLAN. TO OCCUR IN EROSION & SEDIMENT CONTROL PHASE ll. FILTER CLOTH NDUNTnBLE BERM VELOCITIES. APPLIES WHERE RUNOFF FROM AREAS OF HIGHER ELEVA77ON MAY CLEANED AND REPAIRED IMMEDIATELY. 9. PERMANENT OR TEMPORARY SOIL STABILIZA 77ON SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS B MLR, A OPTIONAL) DAMAGE PROPERTY, CAUSE EROSION, OR INTERFERE WITH THE ESTABLISHMENT 20. ALL TEMPORARYNDSEDIMENTCOMOL MEASURESARE TO BEREMOVED MAINTENANCE. " REACHED ON ANY POR77ON OF THE SITE. TEMPORARY SOIL STABILIZAT70N SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT SIDE ELEVATION OF VEGETA77ON ON LOWER AREAS, WHERE SURFACE AND/OR SHALLOWMAY WTHIN 30DAYS OF FINAL S STABILIZATION, NO LONGER NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL SUBSURFACE FLOW IS DAMAGING SLOPING UPLAND, AND WHERE THE SLOPE NEEDED, SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. IN GENERAL, DURING CONSTRUCTION THE RLD OR CONTRACTOR ON -SITE WILL T BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. ExlsT1NG GRDulln LENGTH NEEDS TO BE REDUCED TO MINIMIZE SOIL LOSS 21. THE E&S INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE E&S CONTROLS AS CHECK ALL EROSION AND SEDIMENT CON7ROL MEASURES DAILY AND AFTER EACH 10. ONCE THE SITE IS GRADED, ALL PHASE It EROSION CONTROL ITEMS HAVE BEEN INSTALLED &ARE OPERATIONAL, DRAINAGE IS PROPERLY NECESSARY IN THE FIELD AS S17E COND177ONS CHANGE. IN ADDITION, NO SEDIMENT BASIN OR TRAP CAN BE REMOVED WITHOUT WRITTEN AUTHOR/ZA770N. SIGNIFICANT RAINFALL. MONITORING REPORTS WILL BE REQUIRED FROM THE RLD /F CONVEYED TO THESE MEASURES AND THE ESC INSPECTOR HAS GRANTED APPROVAL THE CONTRACTOR CAN PROCEED WITH THE PHASE 111 70' MIN. T 3.13 TEMPORARY SEDIMENT TRAP. NEEDED. SPECIFIC ATTENTION WILL BE GIVEN TO THE FOLLOWING ITEMS.' ESC PLAN. THE INSPECTOR SHALL APPROVE THE CONVERSION OF SEDIMENT BASIN E' TO SEDIMENT TRAP E'. B 10' MIN. I A TEMPORARY PONDING AREA FORMED BY CONS7RUC77NG AN EARTHEN SOIL DESCRIPTION a. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN 11• THE CONTRACTOR SHALL BEGIN INSTALLA77ON OF THE UTILITIES, CURB AND GUTTER, WALLS, AND ROADS. INLET PR07EC77ON SHALL BE wASHRACK OPTIONAL) EMBANKMENT WITH STONE OUTLET TO DETAIN SEDIMENT -LADEN RUNOFF ACCORDANCE WITH THE VIRGINIA EROSION &SEDIMENT CONTROL HANDBOOK. INSTALLED ON ALL INLETS IMMEDIATELY FOLLOWING THEIR CONSTRUCT70N. THE INLET PR07EC770NS SHALL BE INSPECTED AFTER EACH FROM SMALL DISTURBED AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. USE BELOW DISTURBED AREAS WHERE 774E 78- BRADDOCK LOAM-2 TO 79 SLOPES. SOIL IS WELL DRAINED WITH A MEDIUM RUNOFF b.ALL GRAVEL OUTLETS WILL BE CHECKE REGU ARL FOR SEDIMENT UILDUP D L Y B RAINFALL EVENT AND REPAIRS SHALL BE MADE AS NEEDED. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT SO THAT IT NO ]D'MIN. TOTAL CONTRIBUTING DRAINAGE AREA IS LESS THAN 3 ACRES, WHERE THE CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0 6" THICK. THE THAT WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY LONGER ADEQUATELY PERFORMS l75 FUNCTION THE STONE MUST BE PULLED AWAY AND CLEANED AND OR REPLACED. / Ir MIN." E%IST[NG � PAVEMENT SEDIMENT TRAP WILL BE USED NO LONGER THAN 18 MONTHS, AND IT MAYBE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". SEDIMENT, THE GRAVEL WILL BE REMOVED AND CLEANED, OR IT WILL BE 12. ONCE PROPOSED CONSTRUCTION IS COMPLETE THE S17E IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN CONSTRUCTED EITHER INDEPENDENTLY OR IN CON✓UNC77ON WITH A TEMPORARY REPLACED. REMOVE THE EROSION & SEDIMENT CONTROL MEASURES. FINAL 77MING DETAILS ARE TO BE COORDINATED BETWEEN THE CONTRACTOR AND , , DIVERSION DIKE. 8C3- BRADDOCK LOAM, 7-159, SLOPES, ERODED. SOIL IS VERY DEEP, WELL DRAINED, AND c. ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING THE INSPECTOR FOR THE CONVERSION OF THE SEDIMENT BASINS TO PERMANENT SWM FACILITIES NO 17EM SHALL BE REMOVED, MODERATELY PERMEABLE. SURFACE LAYER Is TYPICALLY LOAM AND Aeour o-e" THICK. OR DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT THROUGHOUT ALL PHASES OF CONSTRUC770N, UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES PRIOR PERMISSION. vDOT «I POSITIVE DRAINAGE D' MIN. 314 TEMPORARY SEDIMENT BASIN. THE DEPTH To THE WATER TABLE IS GENERALLY MORE THAN 80". SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSl770N REACHED 13. THE CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL COURSE AGGREGATE TO SEDIMENT B TRAPPING DEVICE A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE HALF WAY TO THE TOP OF THE BARRIER. HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND I STRUCTURE FORMED BY CONS7RUC77NG AN EMBANKMENT OF COMPACTED SOIL 17 - - CRAlGS14LLE LOAM-0 TO 29 SLOPES. SOIL IS WELL DRAINED WITH A VERY LOW RUNOFF d.ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD SEDIMENT CONTROL HANDBOOK. . MOST EXTEND FULL WIDTH OF INGRESS AND EGRESS PLAN VIEW TO DETAIL RUNOFF FROM ACROSS A DREAS SURFACE LAYER Is TYPICALLY LOAM AND ABOUT 0-8" THICK. THE STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS 14. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZA 77ON OR OPERATION IN "K "STORAGESEDIMENT-LADEN LONG DISTURBED AREAS IN "WENT AND FRY" STORAGE LONG ENOUGH FOR THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". DEPTH THE. NEEDED. AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. MAJORITY OF 774E SEDIMENT TO SETTLE OUT. APPLIES BELOW DISTURBED 258- DYKE SILT LOAM-2 TO 79 SLOPES. SOIL IS WELL DRAINED WITH A MEDIUM RUNOFF IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE ]RAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY 12' MIN. - WHERE THE TOTAL DRAINAGE AREA /S EQUAL CLASSIFICATION. SURFACE LAYER IS TYPICALLY SILT LOAM AND ABOUT 0-8" THICK. RLD OR CONTRACTOR ON -SITE THE CONTRACTOR AT THIS TIME /S DIGS BROOK STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION GREAS GREATER THAN THREE ACRES THERE MUST BE SUFFICIENT SPACE AND ES. THERE AND APPROPRIATE TOPOGRAPHY FOR THE CONSTRUCTION OF A TEMPORARY THE DEPTH TO THE WATER TABLE lS GENERALLY MORE THAN 80". WOOD WITH DIGS MAY BE REACHED AT (434) 978-4435. IN ADD177ON THE ��' IMPOUNDMENT OWNER MAY BE CONTACTED. UPON COMPLE77ON OF THE PROJECT, 774E OWNER . 36D- HAYESVILLE LOAM-15 TO 259, SLOPES. SOIL IS WELL DRAINED WITH A HIGH RUNOFF WILL BE RESPONSIBLE FOR SITE MAINTENANCE. 318 OUTLET PROTECTION: CLASSIFICATION.ACE LAYER LOAM AND 0-7" THICK. THE LITER CLOTN� SECTION A -A STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPA77NG OTWATER S GENERALLYTYPICALLYOABOUT 1 SET POSTS AND EXCAVATE A 4'X4" 2 STAPLE WIRE FENCING TO I _. _ I DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS. REFERENCE: WEB SOIL SURVEY ONLINE DATABASE, FOUND AT TO PREVENT SCOUR AT STORMWA TER OUTLETS, TO PROTECT THE OUTLET STRUCTURE, AND TO MINIMIZE THE POTEN7AL FOR DOWNSTREAM EROSION BY http://websoilsurvey.nres.usda.gov/appIWebSoilSurveyuspx REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMWATER FLOWS. APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL SECTIONS• TABLE 3.31.8 J. 19 RIPRAP: ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, -QUICK REFERENCE FOR ALL REGIONS' ANGULAR STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO - PR07ECT THE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF Rate SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE Plan+ 2Dates• atssgadt>.c7T s .5psciea ms. acre P07EN77AL FOR INFILTRATION, AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS, AND/OR NON -COHESIVE SOILS USE WHEREVER SOIL AND WATER GENERAL SLOPE (3:1 OR LESS)_ PER ACRE Sept. I - Feb. 15 50/50 Mix of INTERFACE AND THE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, Annual Ryegrass EXPECTED VEGETA77VE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE KENTUCKY 31 FESCUE 128 Les. (LOU=multi-fimml UNDER THE DESIGN FLOW CONDITIONS. RED TOP GRASS 2 LBS. so -too Cereal ( Wreale Rye SEASONAL NURSE CROP 20 LBS. (Secafe cereale - ) 331 TEMPORARY SEEDING' 150 LBS. THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED SEASONAL NURSE CROP Feb. 1fi-Apr. 30 Annual Ryegrass 60-100 AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO (LQIWmmulti-flonw) REDUCE EROSION AND SEDIMENTA7ON BY STABILIZING DISTURBED AREAS THAT FEBRUARY 16 THROUGH APRIL ANNUAL - - WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 30 MAY 1 THROUGH AUGUST 15 FOxTAIL MILLET DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR AUGUST 16 THROUGH OCTOBER ANNUAL May l - Aug 31 German Millet 50 OFF-S17E AREAS, AND TO PROVIDE PR07EC77ON TO BARE SOILS EXPOSED NOVEMBER THROUGH FEBRUARY 15 WINTER (&IamiWica) DURING CONS7RUC770N UN77L PERMANENT VEGETA77ON OR OTHER EROSION NOTES: CONTROL MEASURES CAN BE ESTABLISHED. 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL TESTS 3.32 PERMANENT STAB/LIZA770N: AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY PLAN77NG SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION OF SEED FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS IN A APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35. MANNER THAT IS ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS PERMANENT SEEDING SCHEDULE SELEC7ON OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE pS WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF NO SCALE CONSMUC77ON ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETA77VE (STD. & SPEC. 3.32 OF VIRGINIA EROSION & COVER. SEDIMENT CONTROL HANDBOOK, 3RD ED.) 318�EE PRESERVAON AND PROTECTION: PROTECT/ON OF DESIRABLE TREES FROM MECHANICAL OR 07HER INJURY DURING EROSION CONTROL NOTES LAND DISTURBING AND CONSMUC77ON ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFEC77VE FOR EROSION AND SEDIMENT ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETA77VE AND STRUCTURAL EROSION AND SEDIMENT CONTROL, WATERSHED PROTECTION, LANDSCAPE BEAU77FICATION, DUST AND CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM POLLU77ON CON7R0L, NOISE REDUCTION, SHADE AND OTHER ENVIRONMENTAL STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND HANDBOOK AND VIRG/NIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL DISTURBING ACTIVITIES. REGULATIONS. ES-2. THE PLAN APPROVING AUTHORITY MUST BE N077FIED ONE WEEK PRIOR TO THE 3.39 DUST CON7ROL: PRE-CONSTRUC7ON CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DISTURBING AC77WTY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. DEMOLITION AND CONSMUC77ON ACTIVITIES TO PREVENT SURFACE AND AIR ES-J.-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE FIRST STEP IN CLEARING. PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL THE S17E AT ALL TIMES. MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF ES-5.-PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE WITH THE VESCH. CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. FMTEE FABRIC ENTRENCHED a• COMPACTED SOa �__ a' )MINIMUM ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLA77ON OF ANY ADD177ONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE -=- I PLAN APPROVING AUTHORITY. I -- III =1I -IIII -I� I -I -1- I-LL jL 1�1�=Ijj= T -I ES-7.-ALL ]. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL ,or to. _ _ Tliri7l-T-11-r T�TUli-II�fi-l�TPi-Ti- 1-1 77MES DURING LAND DISTURBING ACTIVITIES AND DURING S17F DEVELOPMENT UN77L FINAL - I171 I-III-11., 11_„ I_ rl-IJ-III-I ITT - - rL rl STABILIZATON IS ACHIEVED. T Ti-,�II-11�I = III III- __ ES-8.DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED WATER 11�' -- FILTERING DEVICE. a• �°M __ ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT ANY NECESSARY REPAIRS OR CLEANUP TO DD 'TEMPORARY 18" DIVERSION BERM MAINTAIN THE EFFEC77VENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMFnIA TFI Y TABLE 3.39-A ADHESIVES USED FOR DUST CONTROL Water Application Dilution Type of Rate Adhesive (Adhesive: Water) Neule Gallons/Acre Anionic Asphalt Emulsion 7:1 Coarse Spray 1,200 Latex Emulsion 125:1 Fine Spray 235 Resin in Water 4:1 Fine Spray 300 Acrylic Emulsion (Non -Traffic) 7:1 Coarse Spray 450 Acrylic Emulsion (Traffic) 3.51 Coarse Spray 350 Source: Va. DSWC 1992 SILT FENCE DROP INLET PROTECTION a , <• v0D0 FRANr LFIP mLET LAX M � ��� � II II V II II U PERSPECTIVE VIEWS ELEVATION OF STAKE AND FABRIC ORIENTATION SPECIFIC APPLICATION DETAIL A THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE INLET DRAINS A RELATIVELY FLAT AREA SLOPE NO GREATER THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS IN STREET OR HIGHWAY MEDIANS. Source: N.C. Erosion and Sediment Control Pig and Desian Manual, 1988 ]BENCH UPSLOPE ALONG 774E LINE THE POSTS. J. ATTACH THE FILTER FABRIC TO 4. BACKFILL AND COMPACT THE OF POSTS THE WIRE FENCE AND EXTEND EXCAVATED SOIL. IT INTO THE TRENCH. / __ JAG FLOW f 3.07 1992 II - - I11 ,, I i4�r_� SUPER SILT FENC (WITH WIRE -BACK GRAVEL CURB INLET SEDIMENT FILTER _1- (�'\�_ �� //� RUNOFF WATER WIRE MISS �sr i Ems. H.. J � J® • =111111i=t«��8t. - 3 -=Gi=sew IIIIII IIIII IIIII�IIII� IIIII I SEDIMENT =1' NCRETE GUOITIR I'll 9 � \\'I-- CURB INLET SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO CAUSE INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. ' GRAVEL SHALL BE MOT k3, #357 OR 5 COARSE AGGREGATE. Plate 3.07-1 Source: Va. DSWC NO SCALE 3.07 1992 -1 11- EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. .05- TEMPORARY RIGHT-OF-WAY DIVERSIONS VDOT ;00" 1 CO TYPICAL GRAVEL STRUCTURE COMPACTED SOIL .. I FN 18' MIN B• MINIMUM I TYPICAL EARTHEN STRUCTURE Plate 3.07-6 Source: Va. DSWC Plate 3.11-1 RE SECTION B-B Source: Adapted from 1983 Maryland Standards for Soil Erosion and Sediment Control, and Va. DSWC "....,A -.-..._._.:-- --.-..-_.. e__ _____ --.-..I -I--- 70• MIN. I' _., . SM-2A ASPHALT TOP . __60URSE ]x 21< La- Mw. 21A AGGREGATE 946E PROFIL I ,JC'ICN �o ASPHALT PAVEDWASMWK Plate 3.02-1 EXISPNG 22 �2R PAVEWEn:- I27C 12' MWl It Il -^ F POSITIVE DRNAGE N 'VUS7 EXTEND FULL WIDTH LJ To SEDIMENT I INGRESS AND EGRESS TRAPPING oC'VICC -PERATION ELM 12• WN I1NE DRNNAI,t 71 TO SEDIMENT .INN•pINGyEVICE FILTER G.OTH� 111 tl N'dta lA/t C ILIIC L110al Ulth .111W IIMIIIMHII I�dlls�nl wwl use I t l ID 6 w M W I •. o c u O � 1 3 a w os a a t .• o wl' h 1 ft Bah a tq I h'aut a it h e Tllt 6mueta I I mclle. lot adetp L u u.tdld plrs:Tne \ aa'11 wala um.t I e taHlI tl 111 IIIC a1t1.LItC t all .q)pfocell seNlMl_ area to Iauoce nefhluaut .411 Nellunall 'Ildll be fitrcaltnl Low entawR storm E6:Iw.N. ddchI Of walacoulNe, PAVED WASH RACK No. 35791 112�_ 7/29/22�� ks R 1 I E 0 VIALo V/ Z z O O� U m 111111111111 w On U) Z> J ICI O P in z > LU W W N W N H � a M 0 N r W N 0 IM W Lj z _j J J � > U) L9 1 L_ O z < U WY in C. zLU w Of 17- t CO J~ LUOf 0 O O N U z W 2 0 J_ z Q W I1J 0 aw z> ^JQ ^ � 12L Of 0-Z `- CO Lr) � O I -A Z F--q �W Of O V / Q O 0- U ' LL] z2 W 0 Lu COIr..Vn 06 V O zCO Q of U) w LU U a w Out a U)) JOB NO. 182154 SCALE N/A SHEET NO. 5 I.ULVCKI IU 1 / // i + W / A z' DEEP 2' WIDE EARTHEN BERM WITH A HEAVY MIL ° EXISTING STRUCTURES TO BE REMOVED ` \ M I BE REMOVED / / / POLYETHYLENE LINING, OR BE PLACED IN AN IMPERVIOUS \ _ - _ _ / / OPEN -TOP DUMPSTER WITH A SIDE DOOR. THE PROPOSED / 0 BERM OR DUMPSTER SHALL CONTAIN FUEL IN THE EVENT OF A SPILL. CONTRACTOR SHALL ENSURE VOLUME CAPACITY IS \ / ° / +\ \ IP 1o%LARGER THAN THE MAXIMUM VOLUME OF STORED FUEL. SF EXISTING CUL-DE-SAC / / / / //-14S — — v / / / A / TO BE REMOVED � SANITARY SEWERTO BE REMOVED/ / ° / �' PROPOSED18"DIVERSION. / 41//CONTRACTOR SHALL ENSURE / XISTING ALLEY TO BE REMOVEDREGRADE SO THAT ROADSIDE / / / /' i - g2/ / / TS POSITIVE SLOPE IS MAINTAINED./0DITCH OUTFALLS DIRECTLY / / '/ — / / / /�� i BERM SHALL BE STABILIZED ASVIA OVERLAND FLOW TO�PROPOSED STOCKPILE AREA TO BE / �/ A FIRST STEP IN DISTURBANCE. / /SEDIMENT BASIN C / / /- - v �� k ENCOMPASSED BY SILT FENCE AT ALL TIMES ° / / DID/�//�—IP �/REGRADE DTCH OUTFOTHAT ALLS DROECTLY E / / / . — _/ ° ° /—�E ( LOT � SOIL TYPE /�/ //iE A114 VIA OVERLAND FLOW TO / /� \ v x ° / �I�V SATESEDIMENTBASINC 25B // // ��\� + r l IP a7?R1 Lp SCOTT/R. CO'LLINS7 No. 35791 1�1 p 7/29/22 �j a 0 a - TS / / �f 0I0/' v / DC _ 17 / / �j� — — _ / / _� SOI L TYPE / / t \ , - i� i �/- / _ -- - SF - - - LOT 5 PHASE I DRAINAGE , - / / / , — / — — ( LOT ( AREA TO SEDIMENT 76 D.A.=2. 8 ecETG ii min., / / \ \ \ \ , \ - ' / \ I _ / �6 Lu T BASIN C = 8.12 ACRES _ — / / - / / \ \ 0 C-0.45, 02=4-1 CfS/ oe��` > i % z / % / / LOT RAINAGE I �/ / -- C aPHASEIDz6 (V PRO POSEb SAFETY FENCE �INSTALL SIGNS "WA RNING — / \ \ \ EXISTINGTREELINE(TYP.) O AREATOSEDIMENT QUICK SAND, KEEP M. SAF - / / / / v / / / / / / - / / / \ /----- - — BASIND=6.05ACRES / / / / /— // / /' N LOT M a _ — — �� / / / / ti� / / / / 7 rl� _ _ _ PR P ED 1 ' DIVERSION. / / / / / / / ( 1 / LOT - / / Q OS 8'// \ \ V / / / / / /J // / / 111 _ r O /� Q CONTRACTOR SHALL ENSURE / ^ \ 34 - / / / / / / / ^ LOT / S N z _ / A _ L TYPE / -- POSITIVE SLOPE IS MAINTAINED. / / / / SOIL TYPE \ SF TP / / -� / / / / / / / / // �. \ , ` O13 i� /� // ` Log �' O Q Q - BERM SHALL BE STABILIZED AS 1 I -' \ SOILS LINE (TYP.) / / � 18 6 D C>7 �A FIRST STEP IN DISTURBANCE. / 8C3 \ / /LIMITS OF DISTURBANCE APPROVED / / / / // (� /' N _ — WITH WP0203-900003 /' / / / $��u / N EXISTING PLEASANT GREEI < < J o P20 ROPOs D BAFFLES _ — — — — - T / / / / i / / / w�% PHASE I DEVELOPMENT / �' Q-Q7 / LOT O o EA�� �/ / ti� g / A\ / Q 1 Lu DD LENG1H=63z' D.A.=3.62 ac., Tc=12. min., '/ �- // // /- vv\\ A // iC=0.45,Q2=6.2Cf5 ��' i' i' `�ff / I / LOT V A\ /i'. > 0 n _ / - u \ _ / \ \ (n PROPOSEDVDOT STD. CLASS Al------- // \\ �—_- - ^\\--�/ / i�� i_�� /i/ ///•A� % - / ` / / _ - - / f / PROPOSED 18" DIVERSION. i / / e / / ag \ LU / RIPRAPLweoourLETPRorecrloN // /- --v \- - _ / // / CONTRACTOR SHALL ENSURE / / //' / /// //�/ /j� sa LOT / / / LOT -AA o WITH FILTER FABRIC UNDERLAYMENT �l5`� 24 MIN L-B', W1= Wa=aa. D=6" / \ _ - / / POSITIVE SLOPE IS MAINTAINED. / / / / / v' I- 3 DD BERM SHALL BE STABILIZED AS // /i // // ^/ �' �,� \ /� O A FIRST STEP IN DISTURBANCE. 1110 / / / n / / / / / / ••.,, LEVEL SPREADER O IP S ALL BE �� Ti - - F - i - ( / / DC / �/ / SF '�I _� IP T � z < C) TEMPORARILY BLOCKED DURING CONSTRUCTION, - ' / `i` ", i _ �" LIJ DIRECTING RUNOFF TO THE PRIMARY OUTFALL. �- �-SOIL TYPE / �.{,'V / TEMP BLOCKAGE SHALL BE REMOVED AT THE TIME_- i / / \ " e�/ `�%�.., I l .' fO�C� �4 � - /AFETY F FTHETEMP. BA51N's REMOVAL. DOWNSTREAM /' �/ / -36D /�6K PROPOSED SNS"WAENCE, PROPOSED OUTLET PROTECTION TO BE VDOT STD. _ _ _ - - INSTALL SIGNS "WARNING i + LASS AI RIPRAP WITH FILTER FABRIC - / _ - - - - / ,"• Q.�", Q _ _ - _ _ -- ' - r- - / / .. QUICK\ND KEEP OUT" ' �`. '�C5 Y ❑ \ XISTING ioo' WPO BUFFER (TYP.)- / ! ~� 7 O. O �UNDERLAYMENT (L=6'. W1=3', Wa=9. D-18") / _ .ems �'~ s..�.,� �.s„�" i / tee!' - �, \ \ 7 `Y Ltg Lu L ' / F/ / / �/. O / V A -izB -F TP // --s— -i '� //•s"�i" 's �—�� �„i�• / i,p pp � " p �Vv/ � E �O 0p SA roi�L 0zEXISTING WETLANDS p 0 Now 0 p / _ -- SF ° �� PROPOSED FLAT VDOT CL. AlRIPRAP LINED p - - p O O o p p p - \ \ r i L T w z SHEET 18 FOR p / / \ ss / Lu / OUTLET PROTECTION WITH FILTER FABRIC p / Z J / OUTFALL DETAILS FLOW DIRECTION ARROW (TYP. \ ° z �1NDERLAYMENT(L=z8', W7= .5' Wz=1z.T, D=18") p / p ` \ �., / LOuj w / \ \ \ `p o 0 / / PROPOSED LIMITS OF DISTURBANCE (TYP. \ p \� \ \ �� , , - „� \ LOT 49 W w J STURBANCE(TYP. \ - - \ �o \ — SEE SHEET518 & 1g FOR _ — — — — — — — / A / v Q \ s"'" `t A 50 o — — — LEVEL SPREADER DETAILS %� J — — — — — l / \ f•�., \ REE CLEARING (TYP. / \ _ _ — _ _ `' — — — ` \ J % PROPOSEDVDOTSTD.CLASSAI \ e\ \ i \ J I f5 / SOIL TYPE \ - - - - - - - - - _ \ _ _ - o \ 1oo-YR FLOODPLAIN \ SF I \ / w V RIPRAP LINED OUTLET PROTECTION \ ! �7 -� \ \�\`\ \\ �\ �� \ r---- \ /I / \� WITH (MINLE8FWI-45,W2ABRIC R25YDE6�,,.sl' I \\\SOIL YP NT PROPERTY LIMITS (TYP.) / / pl r" / D QP \ \ \ / / / / EXISTING STREAM \ /� ✓ �• / -' p �•,.,, \\ CONSiRU ION OF �H LEVELS P AD R'D' p v p \ \ ` / `••'••�'•., p �" \ \ AND ITS OUTFACE SHALL OCCUR AT THE TIME / p p o I �♦ \ OF THE REMOVAL OF SEDIMENT BASIN'D'. ° o p - - - - / p p \ \ p J O W� - PROPOSED LIMITS OF TREE CLEARING (TYP.) THE OPENING IN STIR. D-102 FOR THIS PIPE _ / / ° p o o \ p \ 1 «$ C)CREEK — ALL BE TEMPORARILY BLOCKED DURING \ ` \ SHALL _ ` p♦ \ \\ ✓ N --— o p� — o p p \ HE ESC PHE5. A __ - - - - TP Lu i/ \ V vv180p � 40 oAzo 40 80 \ A V 1 I wo LL F- a �SEE SHEET 18 FOSF w O O / // / i \ ` \ _ _z—_\ `—/ // r ------ �� ♦ —` \ \ \ \ / °� //p//�///// //� // % --- �\���_��-- / / / _- �- ---- - ` /�,// �-r— �- OUTFACEI AI DETAILS \SOILTYPE IN -FEET - \j\ 17 a JOB NO. ic14ftwaft182154 ----- - - - - - - X YRFLODPLAINtoo-SCALE p 000 MONOME TOM LM0 0 p\ / a� 1 ED o SEE SO EMT // \ \00A I / p`' SHEET NO. 7 \ I I v G A / A / / / SOILTYPE, Now ' \ — — — —wow MONO Now s ft ' ,� / ♦ / f / 1 ` I / '00000 / \ / _ \ Nil/ NOTE: NO CONSTRUCTION TRAFFIC SHALL USE CLING LANE FOR SITE ACCESS TS All N, / 44* ✓ / / v // v W �� - 1 1, - V) // W 00 / 100 \ 1 fi; PHASE I DRAINAGE AREATOSEDIMENT BASIN C = 8.12 ACRES / DC - SCOTT/R. CO3.LINS7 No. 35791 1�1 p 7/29/22 �j Z Z o J ¢ U m w w vI _IZ O < F Ln z Luw w S.�pSE SOIL TYPE �J/✓^--� =-- PROPOSED SAFETY FENCE, / �/ / / - -� — — — INSTALL SIGNS "WARNING / / / / / i / ' / / s / / / 713 / / QUICK SAND, KEEP OUT" S 41#1/ / \ / L9 \ / � / ' / ��0� \ DRAINAGE M / — - / ' / FLOW DIRECTION ARROW (TYP.) ' / _ — — / / _ - M \ I //' --�i' / �/ V —t _ — /// // // �/ / // /'/ /'/ ��v� N / �-/ ' / \ / EXISTING MANAGED / / i \ / / ♦ — — — O /� / / / /'' - / ' / / / — — \ \ / M —--- \ / STEEP SLOPES (TYP.) ��-/ ' //// \�� /'// / / / //--/////' //v� - / / / PROPOSED 18" DIVERSION. / \ ' I / / N \ _ \" ' / �/ / / / \ ♦ = - / S / / // / / CONTRACTOR SHALL ENSURE / / ( PROPOSED 18" DIVERSION. — I / / SB \ j / / / / /\\ \ \ _� ,♦ / / / POSITIVE SLOPE IS MAINTAINED. D / / CONTRACTOR SHALL ENSURE / / C � ♦/ / / / \ l : 1/= / / / BERM SHALL BE STABILIZED AS / / POSITIVE SLOPE IS MAINTAINED. ' ' / / N PROPOSED LIMITS OF DISTURBANCE (TYP. j' / / / / / A FIRST STEP INDISTURBANCE./ / BERM SHALL BE STABILIZED AS- N Now AFIRSTSTIDISTURBANCE a ——_ /' / // / / TS DD / i �TS� / ^------/ / / / / LLI //' / SOIL TYPE B PHASE I DRAINAGE .'/ �' /' ' AREA TO SEDIMENT / — ---- / / / /� / // // / / �r/ / / ' / .o- i Z' / ' / XISTING TREELINE (TYP.) /' ' ' / / / / ' / /' / / / / / —' (n .� / BASINB=4.96ACRE5/— --- ' ' / / Lu \ ' \ ' PROPOSED 18" CLEAN WATER �— / ° PROPOSED VDOT STD. C ASS Al RLPRA LIN� DIVERSION. CONTRACTOR / / — — — — _ _ / — — ` / / / / / �/ H SHALL ENSURE POSITIVE SLOPE � — — — � \ — — / / ' / / � / / / � � Q OUTLET PROTECTION WITH FILTER FABRIC . / W / UNDERLAYMENT (L=8', W14, Wa=g', D=iB") IS MAINTAINED. BERM SHALL BE, / / /� / \ STABILIZED ASAFIRST STEP IN> / / , 9 / / / DISTURBANCE. / _ � / — — — — � /� SIF T )' \\ //, — / / DO LENGTH=36g' / / / / — — — — — _ — PHASE I DRAINAGE / - - / - _ / - Q° / D.A.- .zo ac. Tc iz min. / / — o / � � o � 4 / / / / AREA TO SEDIMENT --gas—' _ — �w /u-•�/-o-ej° / C=o.4S, Qz=7.z cfs j / / — — — �/ / / / , ---- _—/— INSTALL SIGNS "WARNING °— ' W / / BASIN E= 4.H3 ACRES - — — — — PROPOSED SAFETY FENCE, PROPOSED VDOD. LASS / / / — SA / / / / / ' \ / k / RIPRAPLINEDOUTLETPROTECTION / / ` �� ` /` QUICK SAND, KEEP OUT' / / / / / �� / / / ' ' ' / ' ' o� I ' — — , / — PROPOSED LIMITS OF DISTURBANCE (TYP.) / / ` PROPERTY LIMITS (TYP.) WITH FILTER FABRIC UNDERLAYMEN S / / / � � / / — _ — � — — — — _ — — / / i / / / ° / ' — (MIN.L', Wi=4.g', W2=i2 D_6") �i— �/'—'---i' - /' / // / // / / ��— --- Z) / / — — DD LENGTH=475'PROPOSED LIMITS OF TREE CLEARING (TYP.) U) Oil D.A.=z.3o ac., Tc=iz min., i — — — - _ / / TIP ' / ' � / C=o. 45Qz3 93 cs f��ao-- S B ,' / / / q / (� LJJ , = EXISTING PRESERVED ♦' / // TS' _ — / ' ' — Lu PROPOSED SAFETY FENCE, � / / � _ — — — / / STEEP SLOPES (TYP.) INSTALL SIGNS "WARNING SAF / gs / / / / / / ' — �v �,B' /' / -SF / QUICK SAND, KEEP OUT" / / �,'� / /' / -� — — / / SOIL TYPE /,I , �3 — — — / ° /' / allU) / / / ° ' / / / ' ' 8C3 _ — / v XISTING ioo' WPO BUFFER (TYP.) / / / / / / / > PROPOSED VDOTSTD. CLASS AI PROPOSED 18" DIVERSION. _ / / / /' RIPRAP LINED OUTLET PROTECTION CONTRACTOR SHALL ENSURE _ J' ' / / / ' ••� I WITHFI LER FABRIC UNrDz RLAYMDE6Ls�.�.. \ O j / \ \' / \) // / c Lu Lu /POSITIVE SLOPE IS MAINTAINED. /' /"-' 45', 5, ) ��"... ...�/ \ BERM SHALL BE STABILIZED AS / / / L PROPOSED VDOT STD. CLASS Al RIPRAP LINED ' / / A FIRST STEP IN DISTORBANCE. / / / N-s '-•� / / ROPOSED LIMITS OF DISTURBANCE (TYP.) _¢- _ p / OUTLET PROTECTION WITH FILTER FABRIC /'/' (\ Q / / DD / / — / / ® -- '' o 0 0 �o 6 I UNDERLAYMENT L=8',W1= Wz= D=18" o CD PROPOSED LIMITS OF TREE CLEARING (TYP \ / \ \ O p PROPOSEDVDOTSTD.ZLASSAIRIPRAPLIN D I ioo-YEARFLOODPLAIN TYP. \ N _. 'ft (TYP.) GRAPHIC Si EXISTING ioo' WPO BUFFER (TYP. / / :�� / / � UTLET PROTECTION WITH FILTER FABRIC J \ , �. � � ) \. �\Ntl �— / LEVEL SPREADER / — woo v A� / // / /y.�'� / OP °UNDERLAYMENT(L=8', Wi=3', Wz= ', D=i8") / `9�will ' \ao o zo na / eo / iso ' - / / REAbER OUTFALL PIPE SHALL BE,TEMPORARILY O Q �� ' \ ' FA „•." T o o T }I o \ �l I u BLOCKED DURING CONSTRUCTION, DIRECTING RUNOFF TO r ° \ / / O\ \ \ TIP ' ° / THE PRIMARY OUTFALL. TEMP. BLOCKAGE SHALL BE REMOVED ,,,, / / p O O I / O_O O \\ �— ' `r — c, AT THE TIME OF THE TEMP.BASIN'5CONVER ION^'-'�-� / O o ° SEESHEETSi &1 FOR � ) / EXISTING STREAM 40 O ° 1 / / 100, / ° Q�=-- \\/ \ �; ` // o o�F --LEVEL SPREADER DETAILS o \ \ �__ . SEESHE DETAILS /� '' f v �� SF o / / �� OUTFACE DETAILS o ° ° ' ! / / � o SOILS LINE (TYP.) ' loo-YEAR 1 I t _� - / / rp.-�� //.gyp J-�t�� Ell FLOODPLAIN (TYP.) % D� �` _ 9 / / ROPOSED LIMITS DISTURBANCE (TYP.) / SOIL TYPE / 9-,PROPOSED LIMITS OF TREE CLEARING (TYP.) i — — — / / ,a / ` — J ( /O �2 � _—�_ o. \„_.._,' /•�.�' ..,. � �P ioo-YRFLOODPLAIN, / PROPOSED FLAT VDOT CL. AlAI RIP —RAP LINED ' + ' / / 3.7,1� OUTLET PROTECTION WITH FILTER FABRI /� / 5 / o i UNDERLAYMENT (L=15', W7=6' Wz=7.5' D=18") , ` — 'swill _ — — —1100 a 1 � N z Lu C > G 0 0 0 3 m 0 zn Lu n 0 z� Q Q J a J o J O� a z� a— O n U = `o Lr) z 0 LCLJ 3 G c a uu Q U I� 3 a Lu Lu Ln n ' ^ V / El o c z > 2 O a ) ' o V0 z w w z Lu z Lu ,� w Lu z LuA J J O oC a V v n 0 n U x 0 Q � 0 Lum J3 F- 0 0 LIB a w a w JOB NO.� o 182154 o a SCALE o c 0 n SHEET N0. � 7 N N F- CONTRACTOR SHALL USE A PORTION OF THE EXISTING EMERGENCY BARREL OUTFALL TO INLET - ACCESS ROAD FOR THE PAVED CONSTRUCTION ENTRANCE. CE - - -- T ` \ .. \-. \ I �1 I, •` /,` / \ \ J DC / CONTRACTOR SHALL INSTALL A WASH RACK AND ENSURE A-- - - - - _ _ - - A I \V IL / / / o MINIMUM i2'x7O' PAVED AREA FOR THE CONSTRUCTION ENTRANCE: _ -7 - - �' i )+ / I \ d \ / / `o / �x PH SE /V _ ' / o JrSF PROPOSED CONCRETE 746 N WASHOUTAREA / �3� 78 ' /-• / /I Q PROPOSED3.8"DIVERSION. \ 3 i' \ / / / �/� Ix CONTRACTOR SHALL ENSURE \ / may? _ JI O o LIMITS OF DISTURBANCE APPROVED�/ / POSITIVE SLOPE IS MAINTAINED. _ I / _ m _ / X v u Y WITH WP0201900003 / �h / - / BERM SHALL BE STABILIZED AS v / / .� , - - - - - _ / /\ O V L H w mm � UCTION TRAFFIC SHALL \ \ \ ' ✓ / A FIRST STEP IN DISTURBANCE. I ` \ ✓,. - - - - _ - - / -� \ \ z R SITE ACCESS o F o Lu SLOPES GREATER THAN 3:1 SHALL BE PLANTED WITH NATIVE STEEP SLOPE MIX WITH ANNUAL RYEGRASS BY ERNST CONSERVATION SEEDS AT A RATE OF / \ \ I P /' \ 0 6o LBS. PER ACRE, OR i LB PER i,000 SF, UNLESS SPECIFIED OTHERWISE. 0- _ —V) /�— D-- �. _ - / ✓ DRAINAGE DIVIDE (TYP.)" �� - - / / /IPROPOS D i8" DI ERSION. / q 0 / / / / / \ \ / / / CONTRACTOR SHALL ENSURE - �4- - - - POSITIVE SLOPE IS MAINTAINED./ 738 - _ / / BERM SHALL BE STABILIZED AS PROPOSED STOCKPILE AREA TO BE / / d A FIRST STEP IN DISTURBANCE. 74 734 �� k - ENCOMPASSED BY SILT FENCE AT ALL TIMES DD 73� w N / ♦ A ✓ / / — -- F r4 / --- -- / - ¢ E / / �' \v �/ / o — 0 V r // / ♦ V �' —✓��l /l / 1 // �� Tnz I LOT -- TS / .� / \ ✓ / / C— /—_ x is L9 PHASE II DRAINAGE / / , / • / — / / / / — y / x — SF — — — LOT AREATOSEDIMENT // / /' \ \\ —/ �/ `_ i6 W BASIN G=io.95ACRES / / / / // // A v + v / / / �I v j LOT // — i _ Z / '-�� // ♦ / / / / // / �� r /' / ' _ I �5 o LOT ROPOSED A/FETYFENCE, _-_ �j / A V / ♦�/i'+ (l o INSTALL SIGNS "WARNING SAF ♦+ / / // / vA A v v PHASE II DRAINAGE / / r/ / / / / / /� / / L II I I I I + / ( I a 75 QUICK SAND, KEEP OUT" _ r / \ \ AREA TO SEDIMENT _ / / / / / / / / / I - / / / / / / / p / - LOT / fM uj n / \ --- BASIND=6.14ACRES / / h� LOT - _ PROPOSED i8' DIVERSION. / \_ / / / � / F I I � Z CONTRACTOR SHALL ENSURE ^ \ \ TP -733-- - - _ " " /i j ' /' ' / / i / l LOT // / I ` LOT �' O Q Q - POSITIVE SLOPE IS MAINTAINED. / A ' / / / / ' ' / / / i5♦ L z8 / yg � J o - BERM SHALL BE STABILIZED AS / / / / / \ ^ \ SF ' / /LIMITS OF DISTURBANCE APPROVED / / // / / / / �/� / N a A FIRST STEP IN DISTURBANCE. / / �� v / WITH WPU201 0000 / / / / `� ) / ./ / / i L J EXISTING PLEASANT GREEN zo w O PROPOSED BAFFLES — — — -- — — / / / \ — — �' ' / / / / / / / / /' /' �/w PHASE I DEVELOPMENT / IQ7 / LOT > o OT ., / L I/ / /�\ // / / LOT /IB n L�f -o I /(Zc_�gl / _ T \ / / / ✓ \ o --�`� LOT w o PROPOSEDVDOT STD. CLASSAI / — / // `' 3 / / \ % - - - / / f / ROPOSEDI8' DIVERSION. i / / / / 3 / RIPRAP LINED OUTLET PROTECTION / / _ \ — _ / WITH FILTER FABRIC UNDERLAYMENT V _ — _ / / / 'CONTRACTOR SHALL ENSURE ' / // / / �I� .gV LOT / / LOT \� 13, � / � MIN. L=B', Wi= Wa=aa. D=6" / / / - - - _ - / / POSITIVE SLOPE IS MAINTAINED. / / // / �j z4 v , Lu 3 BERM SHALL BE STABILIZED AS i / )� / �':'�'�,� \ 3z / / /� Q C A FIRST STEP IN DISTURBANCE. / / /,� " A� // V G� •"••"„ LEVEL SPREADER O IP \ / / I LL 3 / / / /„�`•�' , `. \ _ TEMPORARILY BLOCKED DURING CONSTRUCTION, - - ' / - _ - / - i` °, i LLI '- '�/" DIRECTING RUNOFF TO THE PRIMARY OUTFALL. ' / / _ \ - / I I 9p \\ "''�' TEMP BLOCKAGE SHALL BE REMOVED AT THETIME_- �/ i'�//� // /� - -- r� / I,� ".,• % - '�� / / / v TP PROP6SED SAFETY FENCE OFTHE TEMP. BA51NsREMOVAL. DOWNSTREAM / / �/ - / �/ _- _BMA_- ---/ INSTALL SIGNS "WARNING "� T� ` '-•� I A '� (,5� PROPOSED OUTLET PROTECTION TO BE VDOT STD. _ / / �. - _ - - - i / _ _ _ --_ - P LASS Al RIPRAP WITH FILTER FABRIC - XSTING too' WPO BUFFER TYP _ - ✓ - - ' QUICKSAND,j- �, O. O-UNDERLAYMENT(L=8', WI-3', W2=9', D=18") - �••.(_- ) b - - - „". / /' - - / ,�,... ' SEE W y — .." .. T I / / / / \ V -izB a" TP / — �.✓'�� ' — — — — — — .♦+ � .•�` O O O O/ O O O u O O �♦,,.,."„"n�•M `�� / �` V A W y H �I a �/ EXISTING WETLANDS / /�� o o \ o o \ \ �7 / 1 O z ��� ul PROPOSEDVD TSTD CLASSAI SEE SHEETI8FOR SF ° + PROPOSEDFLATVDOTCL.AlRIPRAPLINED o o/ - o oI o 0 0 /�V o -� v ���v RIPRAPDNEDOUTLETPROTECTION W LLI / - OUTLET PROTECTION WITH FILTER FABRIC p l 'i WITH FILTER FABRIC UNDERLAYMENT W z J OUTFACE DETAILS FLOW DIRECTION ARROW (TYP. j \ o ♦ �� / _ > MIN. L=B, Wa= Wz=iz. D=6" ~ w o, o lUNDERLAYMENT(L=z8', W1= Wz=iz.Lu 1 D=i8") o / " , , \ J o .� _ \ \ ( a s', ) �,. / LOT V ..^wry,,. : 49 z STURBANCE (TYP. \ - - - \ ' PROPOSED LIMITS OFDISTURBANCE TYP.\ \ " o - - - - SEE SHEETS 18 & 1g FOR \ ` o o - �- _ / \ \ ( \ \ \ . "......•...,.,.,..,,.., +' \\ \ LOT W 'w/'� 0 \ v I J ' - - - LEVEL SPREADER DETAILS , j�/� � � - - - - - l 1 / � �, I 1 � / � \ ,�"�'.., ; \ 50 0 TREE CLEARING (TYP. 'I \ - _ - _ _ = - `- - - - o `\ \ J y�� PROPOSED VDOTSTD. CLASSAI W = too-YR FLOODPLAIN RIPRAP LINED OUTLET PROTECTION WITH FILTER FABRIC UNDERLAYMENT \ \ _ \� — (MIN. L-8, Wi-4 5, Wa is 5, D 6'_'1,,.sl PROPERTY LIMITS (TYP.) / / EXISTING STREAM \ \ / �'� \ �' / ' �' o �.,�, + \\ CONSiRU I N OF THE LEVEL P AD RID' v o \ / o "I`♦, '` \ \ AND ITS OUTFALL SHALL OCCUR AT THE TIME / _ o o / ) 1 / o C - - , ' �\ �\0 0 0 0 0 _ \ / _ - o I \ OF THE REMOVAL OF SEDIMENT BASIN'D'. _ / x o \ o ° \ ° OwgLLS PROPOSED LIMITS OF TREE CLEARING (TYP.) ` THE OPENING IN STIR. D-102 FOR THIS PIPE - / / o 0 o )p / o o p o� z-- o \ 1 CREEK - �_, \ +�„�° \ ` \ SHALL BE TEMPORARILY BLOCKED DURING ' 0 /A 0 0 0 0 0 _ o o o - o _ _ ♦ i \ \ // r ✓ N V, 0 0 0 .� / _oA� �� o o o HE ESC PHA ES. /-------- ----- — — ���G�APHICv�SCA �� �' / v o TP o o / v v— — W ------ _-- _ J o / — — — — — — — Ia \ 0 \ 20 40 _ e0 180E- SIF o �o SEE SHEET 18FOR °C�.�' I I i IN -FENT } \ \ \ \ OUTFACE DETAIL\ n� 17 0 - - �� r � I SOILTYPE a V7 _ ♦ O A - °° JOB NO. m rinOtf-= 49 ft�� \ \ \ \ /- \ � �I 182154 -\ ioo YR FLOODPLAIN / SCALE ` MdT00 LM0 0 01 a� 1E, /� / SHEET NO. w \ — EX\S'CINGRP\VROPO — ' 1 / 100 1 / SCOTT/R. COLLINS'Z� No. "5 ,� 7/29/22 / o��ssInWAT. E��l ♦ \ � P s _ RPMP-oo�Eia ♦ ♦ / 5 / � ♦ /' / / —— / NOTE: NO CONSTRUCTION TRAFFIC SHALL USE CLING LANE FOR SITE ACCESS -A o 6— \ _ a22 K ✓J' // t / I / --' /U co_s \ wQ m �- J •� , v /v,,,� o Lu / v / v n• LA / y --- i ♦♦ ♦— ' 4t4 0 PHASE II DRAINAGE AREA TO SEDIMENT - BASIN Cm io.95 ACRES GROP�s�RE�� DC � A/ GN\� oRO� a // �� � � � � ROPOSEb SAFETY FENCE, � O� \ / / / / \ /' / / / / / / '� y \ �'� - - INSTALL SIGNS "WARNING N L9 QUICK SAND, KEEP OUT" S / Cn DRAINAGE DIVIDE (TYP.) / FLOW DIRECTION ARROW (TYP.) / / ► / / / k \ / EXISTING MANAGED / / / i i \) / / \ / STEEP SLOPES (TYP.) ���//// -- ' / / //// \00� /' / / / lo/ O \ / / / O� \ 4, PROPOSED LIMITS OF DISTURBANCE (TYP. SLOPES GREATER THAN 3:1 SHALL BE PLANTED WITH NATIVE STEEP SLOPE / / TS / ANNUAL RYEGRASS BY ERNST CONSERVATION SEEDS AT A RATE OF / /' / / / / / / PHASE II DRAWN low INAGE // 6o CBS. PER ACRE, OR 1 LB PER 1,00o SF, UNLESS SPECIFIED OTHERWISE. / / / / / ` r AREA TOSEDIMENT / / _------- �4f / / // /' �// // BASIN B=4.96ACRES - /^\ — — — — — / PHASE II DRAINAGE / / PROPOSED 18" CLEAN WATER / / / / / / ' / DC 7 ^ \ _ - - - - / / AREA TO SEDIMENT PROPOSED VDOT STD. C ASS Al R�PRA LIN� DIVERSION. CONTRACTOR / / / _ - - . / _ _ BASIN E = 4.03 ACRES a / - r / SHALL ENSURE POSITIVE SLOPE- / OUTLET PROTECTION WITH FILTER FABRIC -' IS MAINTAINED. BERM SHALL B W / J / �' / _ - - / / UNDERLAYMENT (L=8', W14, Wz=gD=18") / / _ _ - - / \ = STABILIZED AS A FIRST STEP IN�' ' — DD DISTURBANCE. - PROPOSE SAFE NCE,'.. o / � � � � - - _ - / INSTALL SIGNS "WARNIN PROPOSED VDO D. LASS / / / / _ — RIPRAP LINED OUTLET PROTECTION / / /` QUICKSAND, KEEP OU / / o/ /� / / / /� /i o / -PROPERTY LIMITS (TYP.) WITH FILTER FABRIC UNDERLAYMEN co / / / / � � - / / ' - _ - - / , - - -- / / / PROPOSED LIMITS OF DISTI (MIN.L-8',w1=4.5',wz=1a.'D=6")PROPOSED LIMITS OFTRE TP M o/ /0/1 j EXISTING PRESERVED 4SINSTALL SIGNS "WARNING PROPOSED SAFETY FENCE STE\ SLOPES (TYP.) SAF \ s�S' ! � / TS /O QUICK SAND KEEP OUT" / / XISTING ioo' WPO BUFFER (TYP.) PROPOSED VDOTSTD. CLASS RIPRAP LINED OUTLET PROTECTION WITH FILTER FABRIC UNDERLAYMENTs _. (MIN. L=8', W1=4.S', Wz=1z.S', D=6") SED T STD. CLASS Al PRAP "`- �,,,.•�"' / /I ROPOSED LIMITS OF DISTURBANCE (TYP.) " \ p / OUOTLEOT PROTECTION ON WITH FILTEIR FABRIC LINED �� TS / ® � / p o 0 o p o .coo L /_ UNDERLAYMENT (L=8', W1=3', W2=9', D=18") 0� O o� Q I . / SB / \ / PROPOSED LIMITS OF TREE CLEARING (TYP.) \ - - / / --' \ / „i -, / PROPOSED VDOT STD.ZLASS Al RIPRAP LINED I / ioo-YEAR FL DPLAIN (TYP.) \ GRAPHIC S EXISTING ioo' WPO BUFFER (TYP. / / / / UTLET PROTECTION WITH FILTER FABRIC J \ 756 - - - -- - .- / .� \ \ \ \ \ \ / / /yam/./i"� / OP "UNDERLAYMENT (L=8', Wi=3', Wz= ', D=i8") (/ �2 \ ao 0 zo na / LEVEL SPREAbER OUT ALL PIPE SHALL BE TEMPORARILY T p O o QQQ O \ \ BLOCKED DURING Q CONSTRUCTION, DIRECTING RUNOFF TOr \ / I / —�—�� \ THE PRIMARY OUTFACE. TEMP. BLOCKAGE SHALL BE REMOVED Z_—e_�.O_O 0.0� \ �\ TP —' / '/5 / AT THE TIME OFTHE TEMP. BASIN'S CON�VERION ^'-'���� / O O o 0 o SEE SHEETS 17&19 FOR (lr� 0EXISTING STREAM 1/100, o- - - - /' o sZo_4 TAIL / / - f 40 o o v // / " o 0 o F / / J _ - --- SF _ o / / " - OUTFALL DETAIOLS o LEVEL SPREADER DE / / / - G / 100YEAR/ 91 y.�� S ,� �..m FLOODPLAIN (TYP.)Zzz/ / / ROPOSED LIMITS OF DISTURBANCE (TYP.) _ 9 PROPOSED LIMITS OF TREE CLEARING (TYP.) i o��.`� _ _� '\, �i�.,�,.+. !.o' / - / / ioo-YR FLOODPLAIN, \ „\ — '• �'/ /( ,,' J Jr'_ D RLPROPOSED FLATVDOT CL. Al RIP -RAP LINED OUTLET PROTECTON WITTHFILT R FA BRI UN AYME (= 5', =7.5' D=i&l) - _ c > � M Q 3 N z N I 7 PR C7 W n z SB p Q Q C N a ' N z/f--1 J a Q / > J w N O o / > (n C v a LuG o LuO Lu t / / o J 0 z / H � Q a < LU 6 �oo�// 111 U Lu lJ �El� Q z o JRBANCE(TYP.)- - ' E :E CLEARING (TYP.) C ul 0 z Z w ' z � w w LL w �w N / cn W w J o Q U O / � o n U C) l CN �1 V CAL Q 0 80 / ' 160 Wm J C L w E o O JOB NO. / 182154 a o SCALE / 1"=ml 0 n SHEET NO. 9 / will dP — O SCOTT No.R35791 INS 7/29/22 P / I \ \ / SSIONAL ECG 00 \ PV/ / � E ftftIP 00 R E1 100 00/ 5 100 \ / I NOTE: NO CONSTRUCTION TRAFFIC SHALL USE CLING LANE FOR SITE ACCESS 00 CI V/ z J — `� CO ur)CIP 3 �. ,,(( / �H WLn z p / •� , v /-,��� o 1 Al \ O \ \ Owl IP 00 PHASE III DRAINAGE LU N AREA TO SEDIMENT o N E_ BASIN C=9.66ACRES GRO POSIRG�1 — i / \ / N n' o LqO ` INSTALL SDIGNSE Y FENCE, / / / A/ — ► . WARNINGS Z s QUICKSAND KEEPOUT'= / \ \ / / / � � �♦ \ � DRAINAGE DIVIDE (TYP.) FLOW DIRECTION ARROW TYP. / / / I � M 0 a / \ / / \ V ,� � �'� \ � ( > / ems, ',- IP / , / ��� -- � � M�5 `� � / ♦ - / / �j / �/ r CN Z a �\ T _R � \ / EXISTING MANAGED / / / i / / / / - - ' O / "\/ �� / / % _ M uj \ / STEEP SLOPES TYP. / / / // / / \ /- ( ) � / / \ PHASE III DRAINAGE / -� / � IP � z /` 000000 / / -/ / / / / / \ _ AREA TO SEDIMENT ' IP \ N Q / - V BASIN B = 7.83 ACRES /' /� / ( S SB O Q J ♦ \04 PROPOSED_LIMITS OF DISTURBANCE (TYP. / ' �_ I/ / - -/ J - -_ > Lu > un LuZ _411i / i W PROPOSED VDOT STD. C ASS Al R�PRA LINED / \ / / / — — ro / / / / / / 13 O > 3 / OUTLET PROTECTION WITH FILTER FABRIC / / / J �' �' _ i 158 / / / .� UNDERLAYMENT (i W14, W2=9', D=iB") / / / / , . SLOPES GREATER THAN 3:1 SHALL BE PLANTED WITH NATIVE WITH ANNUAL RYEGRASS BY ERNST CONSERVATION BS. PER ACRE, OR 1 LB PER 1,000 SF, UNLESS SPECIFIED OTHERWISE. - " / / 135 / -- � / `� a�° SF \ \ ~� o 6oL III DRAINAGE Q W Q AREA TO SEDIMENT / / / / / / / \\ \ U w J) /i ' /// / // // /'/ /// // / / M Y ro �� 156 - TRAPE=o81ACRE5 / i r ✓ '//'„s;: `s�� ° o ❑ a W C) / / \ -PROPERTY LIMITS (TYP. / m ( S/ / M / / 6/ - I QU CK SAND KEEP OU G S F PS 13 -� / / / / / /. o / ✓ /Q o PROPOSED LIMITS OF DISTURBANCE TYP.\ A - _ _ ? ^ / / � so _PROPOSED SAFETY FENCE - 11 - - - - / / ✓ / - ! / PROPOSED LIMITS OF TREE CLEARING (TYP.) - 0 /\ T-� / / ✓ul / / / /:. z \ / • / - W w / ✓ / / / A S / / / / / I - - _ i / / / / / /ice /;: \\ - LLJ EXISTING PRESERVED PROPOSED SAFLu ETY FENCE, , / / / / / ; " _ — 154 — — r / / / -- _— — — - i SF o '/ / \ \ STEEP SLOPES (TYP.) / INSTALL SIGNS "WARNING SAF \ / / / - // / I I s � — 736 / / >O U �� '' /. \ F� z \ / QUICKSAND. KEEP OUT" / / / / \ j / / / /.. ! I / — /1 11« B - — �"� '�i / / ✓ — U) LU W J V / / / / V A / / / 1 _ _ - - - - / ti o� / ✓ / EXISTING 100' WPO BUFFER (TYP.) / _ / / , ^ o — / PROPOSED VDOTOUTLET STD. CLKPROTECTION RIPRAP LINED OUTLET PROTECTION. > 156� I / „a` WITH FILTER FABRIC UNDERLAYMENTor I (MIN. L=8', W1=46. W2=i2.5%D=6") 1 - �S _ / ,/ / / I / 'fs i'' / i i 5 / �/ 1 gB`(') •,\,.. / �-� / PROPOSED VDOTSTD.CLASS AlRIPRAP LINED - / / / I / - / - - 13 .•" PROPOSED LIMITS OF DISTURBANCE (TYP) / a � - � � � / / / - <- � ".• � / O o OUTLET PROTECTION WITH FILTER FABRIC UNDERLAYMENT L=8', WI- Wz- D-i8" I ° o > S _ 7 �� _ / .r0 0 0 O P ( 3 , -9', ) j I ) ' IP �i - o o „ PROPOSED ROCK WEIR OUTFACE x /1 7a? 73a. / / PROPOSED LIMITS OF TREE CLEARING (TYP.) i ° o O C) i ° - / / \ / %\ ioo-YEAR FLOODPLAIN (TYP.) / r ""'"'EXISTINGioo WPOBUFFER(TYP. / / o♦ PROPOSED PROTECTION CLASSAIRIPRAPLINED I \ GRAP�II"� SCALE \ �/ ` UTLET PROTECTION WITH FILTER FABRIC J \ 7� .756- — / \�., <—\� \ // / �/ �� // \\ /♦•' / :'/ --- — �N \\ ✓\ 1�ri / / � / ' � ,�.� � \ \ �ys" % UP UNDERLAYMENT(L=8', Wi=3', Wz=g', D-i8") �z ao o zo/ ao /e6 iso .N. j\\\ LEVEL SPREA�ER uj OUTFACE PIPE SHALBETEMPORARILY. \ \ ••.••�O T / :.. ° // ° ° \ \ — E BLOCKED DURING CONSTRUCTION, DIRECTING RUNOFF TO \ i //' ° 0 -_ THE PRIMARY OUTFALL. TEMP. BLOCKAGE SHALL BE REMOVED \ / / p p // �\ / - -� / ---�/ O ° �� \\ �— - \ —' \ / c" AT THE TIME OFTHE TEMP. BASIN'S CONVERSION. / O O - I / / -- ( IN FEET'} / / / / 3sz- o o ° o \ \ _ \ / - SEE SHEETS i7 & ig FOR \ EXISTING STREAM - - / / / / / w o - - \ \ -S - - / / p SEE SHEET 18 FOR _—LEVEL SPREADER DETAILS - - �' ✓. 1 inch , 40 �/ p w SF / / o 0 0/ F --i / / s x j /. / s"`..♦ OoUTFALL DETAILS q // _ _ j_I ' � /' � � /' _ / / � / / JOB N0. 3.00-YEAR 9 1 y. r S\ \ \ \ \ \ / i / �;;...,.. s` 182154 FLOODPLAIN (TYP.) D�. _ \ \ -\- \ / / PROPOSED LIMITS OF DISTURBANCE (TYP.), - T - / ✓ - / p PROPOSED LIMITS OF TREE CLEARING (TYP.) / _ / / !/ / / SCALE QP.j / + /�� � ioo YR FLOODPLAIN_ .� �< c� PROPOSED FLAT VDOTCL. Al RIPRAP LINED_ / / �_ /' / _' _ / / �� n OUTLET PROTECTION WITH FILTER FABRI _� / / i - °�, o — / / / SHEET NO. UNDERLAYMENT L i Wi 6' Wz- D-_18 � J / //�' /T _y / / — — o o � ° / '�77,� o o� ® SEDIMENT BASIN'C' DETAIL -- // /' SEDIMENT BASIN'D' DETAIL f SCALE: i"=20' _ - / SCALE: 1"=20' / TEMPORARY 048" CMP RISER WITH A RIM ELEVATION OF 725.50'. RISER TO INCLUDE A■ TRASHRACK & A TEMPORARY 06" DEWATERING ORIFICE (INVERT ELEVATION OF 72i.96').� • . 1111110110 PROPOSED SAFETY ■ / ONCE THE SITE IS STABILIZED AND THE ESC INSPECTOR HAS APPROVED THE CONVERSION ` / / \ OF THE TEMPORARY FACILITY TO A PERMANENT SWM FACILITY, THE CONTRACTOR SHALL �` INSTALL SIGNS "WARNING / �_ \ \ \ \ \ �. �� • • ■ ■ REMOVE THE TEMPORARY RISER AND TEMPORARY DOWNSTREAM CMP BARREL ! - - - "QUICK SAND, KEEP OUT" • / / \ \ \ MOO- - - DISCHARGING INTO PERMANENT STR. C-202 & INSTALL THE UNDERGROUND DETENTION - I / SYSTEM. SEE SWM PLAN FOR ADDITIONAL PERMANENT SWM FACILITY DETAILS. 74 j4 / / / 736 j42 / N / �\ \\ o u _ _ \ \ \ PROPOSED SAFE 734 \ \ - - - - - �3g5 x ` ` J \ ry \ "WARNING \ INSTALL SIGNS / 726 / N _ a \\ '' \ v v / QUICKSAND, KEEP OUT" / _ x n/n/u/n/n■nan/n/nin/n/n/rmr�nwn■u■u■Y / / 724 / i _-- --- --- ---- -�� / �V vA v \ %- �afop4 722 / / - - - - 41* PROPOSED WOODEN B F LE / + \ \ �Nw/q'�ii �\ V A �V/��/ (/� X "720'-719 j TOPELEV.=726.00 - _IV/ - / / ld / ■n■II■P°� I I� � N \ �/� ■�■ U C Y 2'1 / .� 0, A V A V o A / ��CO Ln Ln N \ V A A J �y26' _ - ° TEMPORARY CMP RISER TO BE SET IN A PROPOSED 20' WIDE VDOT CLAI . RI AP LINED �'Vv N 0 H o / / - - _ _ ° EMERGENCY SPILLWAY W/ 4:1 SIDE SLOPES & ssb A V " \ 0 2: - - - FOUNDATION MEETING MINIMUM VESCH - - - - O I FILTER FABRIC UNDERLAYMENT (STONE SPECIFICATION 3.14 REQUIREMENTS. \ � DEPTH-18"). SPILLWAY CREST ELEV.=700.75'. W '� , ' ) o / \ = � \ \ \ � ,4 � � m I /r, P O O ED 10 WIDE TOP F DAM./i / / ��� z _ - 70 )-YR FLOODPLAII�1 0�02 0 ■ V A V A e ° / v TOP OF DAM ELEVATION=728.'. / i - r - , ` "�` ` �o / ti \ \ \ \ \ \ \ , / _719 - •/ 48.0o LF OF i8" CMP Qa o.5o%TO SERVE AS THE TEMPORARY RISER - - _ - - - EAM OUTFALL. TEMP. PIPE OUTFALL TO DISCHARGE INTO PERMANENT BUFFER' TYP. \ / / 724 �2 I STR C-102 STR. C-io2. TEMP CMP INVERT IN 1 INVER OUT= i i ! STR C-107 (8" HDPE). THE OPENING FOR THE 8" HDPE SHALL BE \ �•'�t/ \ •PROPOSED io' WIDE TON OF DAM O / c, \ \ \ \ \\ TEMPORARILY BLOCKED WITHIN THE MH TO PREVENT RUNOFF FROM b� O / ° 9 \\ CONSTRUCTION OF LE EL R ATTH ER'D' o / / w / / 7�B _ \ ENTERING THE LEVEL SPREADER & VEGETATED FILTER STRIP. TEMPORARY \ ° ELEVATION=7oz.o'+ 8 \ \ Y AND ITS OUTFACE SHALL OCCUR ATTHE TIME �J BLOCKING SHALL BE REMOVED AT THE TIME SB C IS REMOVED. \ - \ ■w� �° / �'� \\ \ OF THE REMOVAL OF SEDIMENT BASIN'D'. 6 A - - - - - ° A d THE OPENING IN STR. D-102 FOR THIS PIPE o �72 \ \ \2 \ \ \ \ i / SHALL BE TEMPORARILY BLOCKED DURING PROPOSED VDOT STD. CLASS AlAI RIPRAP LINED o TEMPORARY 0i8" CM BARP REL \\ \ ' T E C PHASES. - , / OUTLET PROTECTION WITH FILTER FABRIC w N TO PERMANENT STR. C-10z w \ \ UNDERLAYMENT (L=8', W1=3', W2=9', D=i8") x �-x \ A VDOT STD. B-1 (CONCRETE MANHOLE BASE WITH A 048") SHALL SERVE AS THE RISER's y ° \ \ \ Q N / / / p/IR D■D■u■„•„ S M \ \ LOWER SECTION. A 048" STANDPIPE WITH A RIM ELEVATION OF 699.75' SHALL COMPLETE 3' \ PROPOSED 35' WIDE ✓DOT CL. Al i �� / / 1/0 (�•� as TRC\ STR C-104 / THE STRUCTURE. RISER TO INCLUDE A TEMPORARY TRASHRACK & A TEMPORARY 05" ° \ \ o RIPRAP LINED EMERGENCY SPILLWAY J, //p/`T/P/ „> I�3 _ - / DEWATERING ORIFICE (INVERT ELEVATION OF 697.76'). ONCE THE SITE IS STABILIZED AND THE Q - - - - - - - - - ESC INSPECTOR HAS APPROVED THE CONVERSION OF THE TEMPORARY FACILITY TO A r ° \ Q r W/ 4:i SIDE SLOPES & FILTER FABRIC, ' / / / v - / p�� / UNDERLAYMENT (STONE DEPTH-18" ). M / / a \ - - - + PERMANENT SWFACILITY, THE CONTRACTOR SHALL CONVERT THE RISER TO A PERMANENT �\ Q SPILLWAY CREST ELEV. -7z6.5o'. / - � x 91 ,' \ MH STRUCTURE. SEE SWM PLAN FOR ADDITIONAL PERMANENT MH DESIGN DETAILS (STR D-io2). 02 v ° L9 ° CY) �/ i / x/� W + PROPERTY LINE, TYP. g8 IWPO STREAM BUFFER, TYP. o 96 e m / x L \ V� x - \ A110 \ eD - /ioo-:LaoFLOODPLAIN '� N g / / / PROPOSED FLAT LEdSPREADER`\�\ a z / / 'C'.SEE SHEETS i8 & i9 FOR DETAILS O \ \ TRc / i \ \ `° M Uj > iz i� / / ,1►� �/ `yvv TpS + i / i i � / / jai / �'��i/y O + PROPOSED A M0 m LM0 0 { O° V / o i x qi/,• v VDOT STD. EW-i \ I N i x x- •NtErun+uu■arr■i - 7 7 7 7 7 - ° I O .,, N r , / 00 SOOTS `\ ; W N V) 3 0 / �x J /��II■11■rtill■II■rl■II■II■II■II■� _ �r■rr■��.� 1 J INII/1�� �voIoo-YR FLOODPLAIN // / - _ - �- °� Mi N < - �O u T wor. n■D■n■1 I� ��� 1� ° Q Q - - - 11,00 ° ° ® NOTE: SEE SHEETS 14-zoFOR DESIGN INFORMATION AND PROFILES _ ° / 1 1 STR D-104 Q J� 1 e > J W 00=J/ OF THE BASIN OUTFALL SYSTEM AND LEVEL SPREADER. PROPOSED FLAT VDOT CL. AI RIPRAP ' ° 'oss' 1 W Q o LINED OUTLET PROTECTION WITH + J FILTER FABRIC UNDERLAYMENT t \ { OTE: SEE SHEETS 14-2OFOR DESIGN INFORMATION AND PROFILE 1 1 J J o i - / (L=28', Wi=4.5', W2=12. D=i8') \ P OPOSED FLAT VDOT CL. AlRIPRAP LINED n 7�I \ OF THE BASIN OUTFACE SYSTEM AND LEVEL SPREADER. I 1 ;, i � O / \ \ i \ OUTLET PROTECTION WITH FILTER FABRIC CO fY --- 9° O - - / ` � UNDERLAYMENT MIN. L- Wi-6' W2-6' D-i8") 1 1 W POWELLSCREEK/ 111%� 101 / \\ ( -9' - - -\ U) z 0 Sediment Basin 'C' Design WN YYN SPILWAY swrrleour CREgr OF €�€RG€NCY �luwnr drainage area (acres) 10.95 DESIGN HIGH WATER basin volumes: (using 2 contour intervals) tvg-W elevation (ft) contour area (sr) volume (cy) 719.00 5625.0 0 '"IN. 1.0 - - - - 720.00 6329.0 2212 mm CREST 722.00 7824.0 744.4 - "Rr • STOW,, 0EN(AlEN"0 pEY 724.00 94520 1383.4 war STOWE 726.00 112120 214TB 728.00 13078.0 3046.5 T (S-EW SIOMERTW ED 10 N EX./ ACRE) wet storage: wet storage required (cy) (67*DA) 733.7 desiqn hiqh water (ft) 726.50 dewatering orifice elevation M) 721.96 top of dam (ft) 728.00 wet storage provided at this elevation (cV) 733.7 top width of dam (ft) 10.0 availablevolume before cleanout (Cv) (34*DA) 366.8 bottom of basin (ft) 719.00 clean out elevation (ft) 720.56 approx_ bottom dimensions: 47X129 di stance from cleanout to orifice (ft) (> 1') 1.4 upstream face slope: 21 downstream face slope 3:1 dry storage: dry storage required (cy) (67*DA) 733.7 baffles YES principle spillway crest (ft) 725.50 length of flaw. L (ft) 82 dry, storage provided at this elevation (cy) 1223.0 effective width, We (ft) 131 di arreter of dewatering orifice (in) 6.0 L / We (baffles not required if > 2) 0.6 di ameter of flexible tubing (in) (orifice+2') 8.0 collars: YES runoff: depth of water at so Ilway crest (ft) 6.50 C (use 0.45 for bare earth) 0.45 slope of upstream face (Z1) 21 tc (min) 17 slope of barrel (Sb) 0.5 % 12yr 320 Q 2yr 15.77 length of barrel in saturated zone (Ls) 39.8 1 25yr 4.80 Q 25yr 23.65 number collars required 2 dimension of collars 4.0'x4.0' principle soltwaV: avai We head (ft) 1.00 emergency spillway: YES diameter riser (n) 48 required capacity (Q25-Qp) (cfs) 0.00 spillway c apac ity, Qp (cfs) 23.65 bottom width (ff) 35 di ameter trash rack (in) 72 slope of exist channel (WR) 33 % barrel Ieng1h (ft) 45.50 minimun length of exit channel (R) 30 head on barrel through embankment (ft) 6.75 crest of so llway (11) 726.50 di ameter of barrel (in) 18 Sediment Basin'D' Design \ \ O 3 MIN. 2 WISHCLIVAY CREST OF E"EgG£REY `/ R'riITHO"i drainage area (acres) 6.14 DESIGN HIGH WATER basin volumes: (using 2 contour intervals) (25-YR. MRl. ELEV) 'PO WELLSCREEK Q ~ z = a elevation (ft) contour area. (sf} volume (cy) o,,• \ 69529600 �_ v MIN f,n / 1 .00 .0 _ _ \ I `/ W W 696.00 3681.0 122.7 R5[R cRs \ \ - p° E a 698.00 5217.0 450.E sTOE °uEe"cc�AN° 700.00 6881.0 8973 ° scmA E .� \ / / 1 ; . W < 0 > 702.00 8672.0 14721 - \ LLi E wet storage required (cy) (67*DA) 411.4 dewatering orifice elevation (R) 697.76 wet storage provided at this elevation (cy) 411.4 available volume before cleanout (cy) (34*DA) 2057. cleanout elevation (R) 696.51 distance from cleanout to orifice (ft) (> T) 13 dry storage: dry storage required (cy) (67"DA) 411.4 principle spillway crest (ft) 699.75 dry storage presided at this elevation (cy) 429.9 diameter ofciewatering orifice (in) 5.0 diameter of flexible tubing (in) (orifice+2") 7.0 mnolf C (use 0.45 for bare earth) 0.45 tc (min) 12 1 2yr 380 Q 2yr 10.50 1 25yr 5.60 Q 25yr 15.47 principle spllway available head (1) 1.00 di ameter riser (in) 48 spillway capacity, Qp (cfs) 15.47 diametertPLsh rack (in) 72 barrel length (ft) 48.66 head on barrel through embankment (ft) 4.75 di ameter of barrel (in) 24 uEi+T CLWIGIT HINT WET ' STORAGE RECUCED TO N C.Y./ ACRE) design high water (R) 700.75 top of dam (ft) 70200 top width of dam (ft) 10.0 bottom of basin (R) 695.00 approx. bottom dimensions: 32x160' upstream face slope: 2:1 downstream face slope: 3:1 baffles: N 0 length off ow, L (ft) 183 effective width, We (ft) 35 L / We (baffles not requi red if > 2) 52 collars: YES depth of water at so Ilway crest (ft) 4.75 slope of upstream face (ZA) 2:1 slope of barrel (Sb) 0.5 % length of barrel in saturated zone (Ls) 29.07 number collars required 2 dimension of collars 3.5x3.5' emergency spillway: YES required capacity (025{1p) (cis) 4.97 bottom width (R) 20 slope of exist channel (ft/ft) 6 % minimun length of exit channel (ft) 16 crest of spillway (R) 700.75 2 un Ul U)1.■LEl z 0 c� GRAPHIC SCALE I- z w 20 0 10 20 40 80 W O Z ( IN FEET ) 1 inch = 20 ft. SHEETS OF 4- X 8- X 1/2- DQ PLYWOOD OR EOUIVALENT II II 4- ZW z I --I z Of W (n w OZ U W DC w o W V � g � z 3 O< U C)C), ^ N V , Q U W L WU H o LIB /'\ o a w o 0 w a U) JOB NO. 182154 a SCALE o 1"=20' o n SHEET N0. � rn 12 I- SEDIMENT BASIN'E' DETAIL / SCALE: >_"=zo' / - PROPOSED SAFETY FENCE, - - $� - - INSTALL SIGNS "WARNING QUICK SAND, KEEP OUT' TEMPORARY 048" CMP RISER WITH A RIM ELEVATION OF 731.50'. RISER TO INCLUDE ATRASHRACK&ATEMPORARY 06"DEWATERING / - ;"� / / / + ORIFICE (INVERT ELEVATION OF 730.001 ONCE PHASE II ESC IS_ COMPLETE AND THE ESC INSPECTOR HAS APPROVED THE CONVERSION OF THE BASIN INTO A SEDIMENT TRAP, TH CONTRACTOR SHALL REMOVE THE TEMPORARY RISER AND TEMPORARY DOWNSTREAM CMP BARREL. /40 Ox C. a 734��/0 ° / 24" TEMP. CMP BARREL, - - - - - -- - / ENGTH=43', S=o.8%, INV. N=72884, INV. OUT=728.5o PROPOSED WPO STREAM BUFFER, TYP. io' (MIN.) WIDE TOP OF DAM. ♦ / '' �OwYYau,,�R�uT OP OF DAM ELEVATION=734.0'. 'l�R■u�r��u / � / ♦ o11 PROPOSED zo' WIDE VDO CL. M RIPPTW LINEDIWI :=:07 / / EMERGENCY SPILLWAY w/ 4:1 SIDE SLOPES & o / FILTER FABRIC UNDERLAYMENT (STONE ° ioo-YR FLOODPLAIN J DEPTH=18"). SPILLWAY CREST ELEV.73z, Sediment Basin 'E' Design drainage area (acres) 4.83 basin volumes: (using 2' contour intervals) elevation (ft) contour area (sf) volume (cy) 728.00 4543.0 0 730.00 5893.0 385.4 732.00 7396.0 876.6 734.00 9022.0 1483.6 wet storage: wet storage required (cy) (67*DA) dewatering orifice elevation (ft) wet storage provided at this elevation (cy) available volume before cleanout (cy) (34*DA) cleanout elevation (ft) distance from cleanout to orifice (ft) (> T) dry storage: dry storage required (cy) (67*DA) principle spillway crest (ft) dry storage provided at this elevation (cy) diameter of dewatering orifice (in) diameter of flexible tubing (in) (orifice+2") runoff C (use 0.45 for bare earth) tc (min) 12yr 3.80 Q 2yr 125yr 5.60 Q 25yr principle spillway: available head (ft) diameter riser (in) spillway capacity, Qp (cfs) diameter trash rack (in) barrel length (ft) head on barrel through embankment (ft) diameter of barrel (in) 323.6 730.00 385.4 161.8 728-84 1.2 323.6 731.50 357.9 6.0 8.0 0.45 12 8.26 12.17 1.00 48 12.17 72 43.00 4.00 24 IWEL 1' 0 SPILLWAY CREST OF CHEROEI:C7 1 WITHOUT SPILLWAY DE51GH HIGH WATER (25-YR, STORR ELEV.) ° 5' HIN. 1.0' -------- ------ IRSER CREST • DRY • 5T1)RAGE DEWATET.TNG _ •____ DE+ntE • bET " S,ORACE i 1 5EONAEM CLFANCaR POINT (• WE7 SIORACE REWOEO TD Sl C.V./ ICRE) design high water (ft) top of dam (ft) top width of dam (ft) bottom of basin (ft) approx- bottom dimensions: upstream face slope: downstream face slope: baffles- length of flow, L (ft) effective width, We (ft) L / We (baffles not required if> 2) collars: depth of water at spillway crest (ft) slope of upstream face (ZA) slope of barrel (Sb) length of barrel in saturated zone (Ls) number collars required dimension of collars emergency spillway required capacity (025-Qp) (cfs) bottom width (ft) slope of exist channel (ft/I minimun length of exit channel (ft) crest of spillway (ft) 732.50 734.00 10.0 728.00 53'x146' 2:1 3:1 NO 120 58 2.1 YES 3.50 2-1 0.8 °% 21.69 2 3.1'x3.1' YES 3.91 20 18 °I° 18 732.50 SEDIMENT TRAP'E' DETAIL SCALE: 1"=20' 7-4-4- - -PROPOSED SAFETY FENCE, INSTALL SIGNS 'WARNING QUICK SAND, KEEP OUT" 111.2 1111IME SEDIMENTTRAPIA'DETAIL TH 0 SCALE: 1"=20'F�l . TOP-748.g5 SCOTT R. LINSZ EXDI / / - PROPOSED L� No. 35791 4 MP RISER RIM ELEV. a 29 22 748.6o, 3.8" CMP BARREL TIE INTO I sor b EXISTING STRUCTURE Y �SSInn nT. E��l x - INV IN. 744E INV OUT. 743, L=39'1 S-z. 6/D I _ PROPOSED SAFETY FENCE, INSTALL SIGNS"WARNING QUICK SAND, KEEP OUT"- / 750 1 111 ST / r/ I // ��i C. x�x- _ 774 1 Ln �O A 6I 16 1 �" /PROPOSED 6' (MI J WIDE TOP OF DAM \ 1 (�I��JIWII�II�IWIIWIIWIIWIi1//III \ � � _ �1 II�,I�RIII�I��II IO�Ilyl�l11111, � � PROPOSED ROCK WEIR OUTFALL (WIDTH =4.9' Sediment Trap 'E' Design SEDIMENTTRAPIA'DETAIL TH 0 SCALE: 1"=20'F�l . TOP-748.g5 SCOTT R. LINSZ EXDI / / - PROPOSED L� No. 35791 4 MP RISER RIM ELEV. a 29 22 748.6o, 3.8" CMP BARREL TIE INTO I sor b EXISTING STRUCTURE Y �SSInn nT. E��l x - INV IN. 744E INV OUT. 743, L=39'1 S-z. 6/D I _ PROPOSED SAFETY FENCE, INSTALL SIGNS"WARNING QUICK SAND, KEEP OUT"- / 750 1 111 ST / r/ I // ��i C. x�x- _ 774 1 Ln �O A 6I 16 1 �" /PROPOSED 6' (MI J WIDE TOP OF DAM \ 1 (�I��JIWII�II�IWIIWIIWIIWIi1//III \ � � _ �1 II�,I�RIII�I��II IO�Ilyl�l11111, � � PROPOSED ROCK WEIR OUTFALL (WIDTH =4.9' Sediment Trap 'E' Design Jrainage area (acres) (c3) 0.81 Trap vol umes: elevation (ft) area (sp volume(cf) volume(cy) 731.00 2214.0 0 0.0 732.00 2647.0 2,427 89.9 734.00 3619.0 8,668 321.0 wet storage wet storage required (cy) (67*13A) 54.3 bottom of stone we! r (ft) 731.60 wet storage provided at this elevation (cy) 54.3 slope of wet storage sides 21 dry storage: dry storage required (cy) (67*DA) 54-3 crest of store- Weir 733.0 dry storage provided at this elevation (cy) 54.3 / TOP OF DAM ELEVATION=734.0 . _ / WPO STREAM BUFFER, TYP. \ _ 7-'0- -7� 'x w � Ln ♦ I �I // / x ���j5p6-'x- o Ln z / * x - PROPOSED 6' WIDE TOP OF DAM. I ioo-YR FLOODPLAIN TOP OF DAM ELEVATION=750.50'. / \O > 750 `-- - - J NW LY OR CROWD ELEV ,• VARYBI£ CREST OF STORE WEIR NRn, • - - a DRY STORAGE y VN LE WET STORAGE +, MAR 1 (ExC"TED) CLOT, pdaN+1 MCIIND 1"I nEv- •SEE PL+Tc IA3-1 COARSE AO."NEOgE� CLA55 I RCRAP weir length (A) (6xDA) 4.9 bottom of trapeleration (11) 731 bottom trap dimensions: 36'x96' top of dam ele✓Ertion (tt) 734 top width of dam (0) 6 top trap dimensions 481x114 Sediment Trap A Pipe Outfall Design FIGURE 3.20.2 PIPE RISER SEDIMENT TRAP drainage area (acres) (c3) 220 Lrap volumes: elevation (ft) area (sf) volume(cf) INLET Dv naR«ELLY,Tn 744.00 1072.0 0.0 "pF4ON Dcsa 111 VAM 746.00 1800.0 1052 11 748.00 2656.0 2692 750.00 3640.0 501.5 ROD v ETEE/A°. Rnn REST 3960.0 585-9 pN iiAAEE CEM'1E m MINCE ,A00 CLL ,TETY AC IKT fIDRA� EEEYJTKN ..... oARa Wet storage. smidDIT(IIm wW REYA NN wet storage required (cy) (67*DA) 147.4 *nRkn dewatering orifice (ft) 746.7 'P1flLp N*E V` pS wet storage provided at this elevation (cf) 164.1 slope of wet storage sides 2-1 design high water (ft) 749.60 cleanout elevation (ft) 745.4 top of dam elevation (ft) 750.60 wet storage provided at cleanout (cf) (33*DA) 73.7 riser diameter (in) I 24 barrel diameter (in) 18 dry storage: barrel length (ft) 39 dry storage required (cy) (67*DA) 147.4 barrel slope 2.56°% riser crest (ft) 748.60 top width of dam (ft) 6 dry storage provided at this elevation (cf) 173.9 bottom trap dimensions 16'x6T slope of dry storage sides 2-1 bottom of dam elevation (ft) 744.0 a N � N 0 0 Q L9N z Z� W ti C o M G+3 N n Rt 75 M W a a W N Q 73 O N V 3 N z J ° W a° � Q w Lu 0- p C11- J J J i o 0 a CL LU .o V ~ � z o o > o J a zo = W LU WU I ��� LU w Q o _ U0 E UlC/) El Z I- z w Z ° w w Z z �Z W Uw c) W o Z DC w o � o w (D � o n � z O U O 0 ,^ N N V , Q U W L I- 0 w � a w O w � a M o U JOB NO. 182154 a SCALE o 1"=20' o a SHEET N0. m rn 10 SEDIMENT BASIN'B' DETAIL SCALE: 1"=20' GRAPHIC SCALE PROPOSED SAFETY FENCE, zo _ - o1-1 / o zo - -sue \ eo_ / INSTALL SIGNS "WARNING / / �' - / V , / QUICK SAND, KEEP OUT" PROPERTY LINE, TYP. ) / - - IN FEET 1 inch = 2& _ fL i1 PROPOSED WOODEN BAFFLES TOP ELEV.=747-83 A VDOT STD. B-1 (CONCRETE MANHOLE BASE WITH A 048") SHALL SERVE AS THE PROPOSED VDOT STD. CLASS Al RISER'S LOWER SECTION IN CONJUNCTION WITH THE PROPOSED REINFORCED / / / - _ _ RIPRAP LINED OUTLET PROTECTION \ / 60 �s / CONCRETE FOUNDATION WITH FILTER FABRIC UNDERLAYMENT A 048" STANDPIPE WITH A RIM ELEVATION OF 747.33' SHALL , / / / / COMPLETE THE STRUCTURE. RISER TO INCLUDE A PERMANENT TRASHRACK & A TEMPORARY (L=8', Wi=3', Wz g', D=i8") 06"DEWATERING ORIFICE (INVERT ELEVATION OF 744.78'). ONCE THE SITE IS STABILIZED AND � NVERSION OF THE TEMPORARY FACILITY TO A / --STR B-107 (8" HOPE). THE OPENING FOR THE 8" HOPE STIR B-110 i THE ESC INSPECTOR HAS APPROVED THE CO / \PERMANENT SWM FACILITY, THE CONTRACTOR SHALL PLUG THE TEMPORARY DEWATERING SHALL BE TEMPORARILY BLOCKED WITHIN THE L VDOT MH-1 - p$ / k6 / ORIFICE WATERTIGHT & RECONFIGURE THE RISER TO MEETTHE SWM SPECIFICATIONS./--- - - / TO PREVENT RUNOFF FROM ENTERING THE LEVEL CONVERSELY, THE CONTRACTOR MAY INSTALL THE RISER WITH SEGMENTAL RINGS & / SPREADER &CONSERVATION AREA. TEMPORARY STIR \/ BLOCKING SHALL BE REMOVED AT THE TIME SB B IS w. / REMOVE/REPLACE THE UPPER RINGS WITH NEW RINGS MEETING THE SWM SPECIFICATIONS. STR B-104 CONVERTED TO A PERMANENT FACILITY. '(8" p2 SB SEE SHEETS 17& ig FOR ADDITIONAL PERMANENT SWM FACILITY DETAILS. VDOT MH-1 ' / HOPE) R*it �0 STIR VDOT MH81 � n STIR B-102 - /VDOT MH-1 tea" HOPE) i / / Ta 8 Q / + �� m A / F / WPO STREAM BUFFER, TY♦' ♦U�°♦ / x O 's IpL , / / ♦`d i + ��orl / PROPOSED FLAT LEVEL - - + \ / 6 - / SPREADER'B'. SEE SWM / PLANS FOR DETAILS. O / 01 O Po• O _ / - - i 1 �_ n►n�n� a .�- + - o � ° O kP _ 0,,011011011 TO PREVENT FLOTATION THE RISER i / / i ' _ _ �- - BASE SHALL BE FIRMLY EMBEDDED 6"�L��gn��0♦L�♦� /+ - INTO AN 18" THICK REINFORCED CONCRETE FOUNDATION THAT IS �o' WIDE �OP OF DAM - rl■a■°I■II■II•'I"""'I"°'n�������L�� / � O ° - 8'x8', AND BURIED BELOW GROUND. 75 + E""Lt�EV.=75o.00' / ♦,��°♦�� �� a- + + - / \ - O ♦"� / - - - NOTE: SEE SHEETS 14 zoFOR DESIGN INFORMATION AND PROFILES dam♦•. Q \ � � 4 � / / � � � n� wn�LL�n�L ����� � OF THE BASIN OUTFACE SYSTEM AND LEVEL SPREADER / ♦ - uq o♦ i / ° O- / + / -� / "♦°♦ Soo YR FLOODPLAIN PROPOSED EMPERGENCY SPIDLLWAY w/ 4:i SIIDERSLOPES 8y a♦� �d ° / -- \ FILTER FABRIC UNDERLAYMENT (STONE a�u■R� - / PROPOSED FLAT VDOT CL. Al RIPRAP LINED OUTLET + PROTECTION WITH FILTER FABRIC UNDERLAYMENT / + - _ , �� i♦ S / DEPTH=18"). SPILLWAY CREST ELEV.=748.67'.' (L=iS', Wi=6', W2=7.5', D=i8")/ / _ ���`��� �/ / / / + i -� CD �$ / 5 i,/ / / / Sediment Basin 'B' Design MM. t'HY SPILSw0.x 2'MnewuT � � OF UERaHU SPILIA'lAY drainage area (acres) 7.83 DESIGN HIGH WATER basin volumes: (using 2' c ontour inlenEls) r25-YR. 'STORM �'t elevation (fl) contour area (sf) volume (cy) C,5 740.00 1487.0 0 Nlk. 1.0' - -- - 74200 2573.0 148.5 RISER CREST 744.00 39320 387.7 STORAGE UVATERINC oeAcc 746.00 5543.0 736.9 YEr' srowce 748.00 74020 1214.7 750.00 9513.0 1839.E sEEWEI" uORACE PaHT C • EDt10E0 TO 3 C.Yd/ XR wet storage: wet storage required (cy) (67'DA) 524.6 design high water (ft) 748.33 dewatering orifice elevation (R) 744.78 top of dam (ft) 450.00 wet storage provided atth1s elevation (cy) 524.6 tap width of dam (ft) 10.0 available volume before cleanout (cy) (34'DA) 2623 bottom of basin (ft) 470.00 c lean out elevat on (ft) 742.95 approx- bottom dimensions- 34'x45' distance from cleanout to orifice (R) (> 1') 1-8 upstream face slope: 3:1 downstream face slope 3:1 dry storage dry storage required (cy) (67'DA) 524-6 baffles: YES principle solWay crest (ft) 747-33 length of flaw, L (fi) 48 dry storage provided at this elevation (cy) 530-0 effectvewidth, We (ft) 141 diameter of dewatering orifice (in) 6-0 L / We (baffles not required if > 2) 0.3 diameter of flexible tubing (in) (orificet2") 8-0 collars: YES runoff: depth of water at spi Way crest (ft) T33 C (useC-45 for bare earth) 0.45 slope of upstream face (ZA) 3-1 tc (min) 12 slope of barrel (Sb) 0.5 °% 1 2yr 380 Q 2yr 13.39 length of barrel in saturated zone (Ls) 5235 1 25yr 5.60 Q 25yr 19.73 number collars required 2 dimension of collars 4.6'x4.6' principle SO[W@y7 available head (fl) 1.00 emergency Solway: YES diameter riser (in) 48 required capacity (Q25-Qp) (cfs) 0.00 spillway capacity, Qp (cfs) 19.73 bottom width (11) 30 diameter trash rack (in) 72 slope of exist channel (fVft) 22 % barrel length (fl) 122.50 minimun length of exit channel (ft) 6 head on barrel through embankment (fl) 9.46 crest of spillway (H) 748.67 diameter of barrel (in) 24 Summary of Sediment Basin Subareas SBB SBC SBD SBE ESC Phase 1 4.96 8.12 6.05 4.83 ESC Phase 11 4.96 10.95 6.14 4.03 ESC Phase III 7.83 9.66 4.35 - SCOTT/R. CO•LLINS7 No. 35791 1�1 p 7/29/22 �j Z Z J O Q U m U vI W J Z < O F Ln z W ~ W L Cn W M M Q (S7 NRt z It 5w N W CY)O Q 04 V) N J N �-I Q w LU 0- o J J J ' w ,�^ CL `5 o > p z J t--I1 U ~ z Q U cW LU W 2:Y n w Q 0 w /'� � V / �- � z Ul U) El zw w z FM-q ' LU U w O w ` LU ~ V Q � z OO Q O , ^ N V , U w U ^ w u.I w � x a � JOB NO. 182154 SCALE 1"=20' SHEET NO. 1 Qa a SWM EDREST AND OPEN SPAEE EASEMENT NOTE❑ THE SWIM ®REST AND OPEN SPACE EASEMENT IS SUBJECT TO THE GUIDANCE SET EDRTH BY THE DED IN THE VIRGINIA STORMWATER MANAGEMENT PROGRAM. THE AREAS WILL REMAIN UNDISTURBED IN A NATURAL, VEGETATED STATE, EETEPT LIDR ACTIVITIES AS APPROVED BY THE LOCAL PROGRAM AUTHORITY, \ ❑ / / ' I I / / \ „\ I /, / / / \ \ / — — SUCH AS ®REST MANAGEMENT, CONTROL OEIINVASIVE SPECIES, REPLANTING AND REVEGETATING, PASSIVE RECREATION D£.G., TRAILSE,I AND LIMITED BUSH HOGGING TO MAINTAIN DESIRED VEGETATIVE / / / / / / ❑ \ I / / / \�� — COMMUNITY (BUT NO MORE THAN 1DUR TIMES A YEARO ❑ // \ ❑ \ — \ ❑ / / \ ---- - - - - -----b - \ L -- \ / \ \ \----- ----- -❑ \- so 0,00 -AWIF oil* 400 __----❑��—--� / \I _ r — x / / / w — ' // y Y A A � ��T / _ _ _-- i /, / / 00 00000 100 TAL \ /� / /// / / / / / \ ! I i ` ❑ 'i / �• \ \ /� / A ELEV=S' (Tc=0.1 j / / -� / / / / OTAL cl 0.27 hrs. 05 CONO. L. W w LEVs ( _ / A '� i �a _ �.. v i✓��f .y V -_° A / 1,02 OF CHNL. LOW 5 s\(Tc 0.6 s. / � / � / / 00' OF LF w A EJ.EG=4` � - IA � /(rc=0.2/5-nrs) / / t " ❑ / V / � / aoa ❑ V- cord. ��w/ o v E� V=32%(T�0.02 hrs- SU$AREA-D /TOTALTc-0.18hr.THIS PLAN) Tc=0.1 rs)/ / / / / \ // / ' —' / / / �% 535' OF FLOW w A EL V=40� Tc 0. r — // / \ / / A SUBAI�EA� — / / / / / -7l �.� ' ,I F OL EV=4' / �/ —�- - /� / rA A O / �/ / // PHASE I SUBAREAS A & B 1 1 ac / CN-63 / / / \ \ .1 / // 12.68 dC. /_- �,»—�/ — r n' T 22 hrs.. __ — / / \-� / /i �/ ' / / / P i LEV=30' Tc=O 0 rs pp _ / / / _ �\��W%/ / — / / � / // I �� — — /sir — � _ � / / / / \ \ ` / i — // � '/ i / �/ / %/ •' / // \ � /I / -- \ � / /❑ / \ � / �/ / / d, / / / ��-y°'////, /— - --- \/j / i /''" / //�/' //�/ 11 \ � '�. S1IB A B X \ \ ' � �♦ \ \ / ' / r / / /\ /� '�' 7.9YdC / / / / r I / / � ....� / / / ❑ / / ; / , / / / �(' / � ' / � _ — ✓ — --. - / / / /. '�i � / �'� �� gym' w "",. - �.. �e--°" - ° • ° Y.`:�r�."" ° � ❑ \�. It fs� �(� ��� J�// ❑ :+,. _ .'> • ° ®• ° ��__� � 1! --�\ �\\ v4��� .` ` • F tV 90, ❑ l) ` `� � 0 1 � SCOTT/R. CULLINS ` No. 35791 pow 7/29/22�� �SSIONAL E�G1 Z z O k \ O_ 1 O U m \ CJ J < ~7 z ~ OLLJ F ❑ in z / w - _ - - - - - - _ - - - •h X\/ — -; -�� \ � ( '( \� "- "�9 ' / �— LOCATION OF APPROVED PHASE I r / l / /l / / / , / ®° ° ° ° ° ®:�/ _ \ \ � — �� — \ — — — _ � \ \� � \ \ `� 1 \ •° � t \ � / / \ is !; ' \ v=�� _ _ , LEVEL II BIORETENTION BASIN ° • / ®\----f�—°�-'®� l� �� — a✓ / —i / ..' /'�••// /® ®® / �...+i �"��1:®'®� //r / — — \ �\ _ III( (.� //// l \ /' e• ` / _—' '•� / T me �•� -� ) 1 , — ❑,K ,'ra'� -- ".7'� d �-L �C' _ _ >11 /1 / _: ,..-. f / / \ — �� �� �� \ VAA� \ �A \ \ �\ / \ xl v ... T.- Is / / '/� � I V \'"�% � rn`'° " "' �� � — — T ti ' � — — — � _- ��/// / f AA \ � VA\�\\� AVA V � � / � � � ° � I A r � •� � — � i � � — �i,/..�APPROVED SWMFOREST & �Z— ❑ /� / \\\\\\\\\\\\\\\\\ V VA -OPEN SPACE EASEMENT \\ — _ RAMBLING BROOK LANE v • �I S ' ' ° TYPICAL UNDER THIS PLAN's CONNECTOR ROAD SUBAREA A • ° ®� • ° ® — - �> _... ; . ORIGINAL WPO 202000053 �_ /� / ❑� ��AA ����AA y� ° v /� ��*� I•I I I I I �l / •/mac > •� / \- /• = - — - - �=�� - � = _ �,�_ ❑ �` _ ,i,= \ / / \ ❑�\\\�\\\�\❑� •,� \ \ IIII IIII �' .. 4\�\ �\� � I --/---- _-= ❑ s � — — — ❑ � 044, — � v — � v v v ��wv�� ��vvv� �. v v , J I I: IIII ° \ ° ° . I ... ��••v� � � �• � _ — _��� ED [0 I WATERSHED SUMMARY FOR SUBAREA B J — — 0 — — - I CN ❑ DA B (Pre-Dev.) 1 64 SHED ATE - - O � _ ❑ r--- W R SUMMARY FOR SUBAREA General Construction notes for Stormwater Management Plans CN 1. All dams and constructed fill to be within 95% of maximum dry density and 2% of optimum moisture content. All fill material to DAC (Pre-Dev.) 63 be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. 2. Pipe and riser joints are to be watertight within stormwater WATERSHED SUMMARY FOR SUBAREA D management facilities. _ 3. For temporary sediment traps or basins which are to be converted P y P CN to permanent stormwater management facilities; conversion is not - to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. DA D (Pre-Dev.) 61 Area, ac. 1-year Flow, cfs 2-year Flow, cfs 10-year Flow, cfs 4.79 1.29 2.58 8.32 Method of 9VAC25-870-66 Method of 9VAC25-870-66 Pre-Dev. Subarea Post-Dev. Subarea Channel Protection Compliance Limits of Analysis for Channel Protection 1 1 Section B.3.a (Energy Balance) N/A (Energy Balance Satisified) 2 2 Section B.3.a (Energy Balance) N/A (Energy Balance Satisified) 3 3 Section B.3.a (Energy Balance) N/A (Energy Balance Satisified) ems'❑ \ Impervious Area Summary Pre -Development Subarea B Existing Residences 37,600 sf / Existing Roads 11,925 sf / 49,525 sf \ Impervious Area Summary \ , ❑ Pre -Development Subarea C Method of 9VAC25-870-66 Method of 9VAC25-870-66 Existing Residences 26,800 sf Flood Protection Compliance Limits of Analysis for Flood Protection Existing Roads 18,450 sf 45,250 sf Section C.2.b (10-yr Post-Dev. Flow < 10-yr Pre-Dev. Flow) N/A since Section C.2.b is met Impervious Area Summary Section C.2.a (10-yr Peak Flow is Confined within BMP & pipes) Section C.3.c (Outfalls to mapped Floodplain) Pre -Development Subarea C Section C.2.a (10-yr Peak Flow is Confined within BMP & pipes) Section C.3.c (Outfalls to mapped Floodplain) Existing Residences 12,125 sf lu W N (N N W; Zui J J > U) 0 W 0 Z� Q U WY H ZLU W 01-0 cn L�1 N z W m o 0 z N 0 Q a 3 waQ a IY Q LU a Q� a Q J z Q J � o z4 Lu U) LU ° 0 3 Q u Q U J 0 LU IY a U w Q Q I a 0 o� i UZ w w z �Z Z w W LU N Z WJ 01n O , V LU > ° a 0 C oa z UI 'Q^ it U x Vl Q0 W J w U 0 U f- � 1 w a w a U o IOB IN y 182154 c SCALE o 1"=100' N 0 Q SHEET NO. m 1❑ / / / - - \ I _ I W -�4� Vq 0110/ TWO VOW / \\ / // ✓ TAL Tc= 0.19 A ELEV=5' (Tc :0.1 ,, „' _11 �, • �� ��� iyt+, �• .+R fix'® � G G� � &� �y.,�.�. 1 \ __ .� \ n., �, q �� . � , \ �� G G�=�GIi. �� ' ■��G 'i �e�'�� •• • •• • . • 1 • - �%����II I�, i 1'iP1l .� w�� � .� .kV r '�' ~ 1. i�I'',�.w'.iJl., �.3� I. nl • ,^�'%4 r.,- _ _ -!iu �,i41111�'?'� .•x ". ` , 'G ii I 1. ❑ I U\ � \ I 1 - - O SCOTT/R. CULLINSZ No. 35791 7/29/22 �oti'SIONAL E�01oj 10�w/ A\ELEV=6'/(Tc=0.1 r 300' 4E OW w/ A E1EV=22' FLOW ic ft 0.0 .A /SUBARE v f THIS FT N 1' 1. r% , „ / t 1 „ •° . ° . ° w ° / J . \\ / l� A /� � /,• / r ' _-;� � - � °*'� - °= V® o�• �. • . ate-•. .- v • � •�..-•-� •' i� • � � - v VA - c t.i �"- ::- - ,," :� �---_ -� -/� �------- _v ®® •fin.• •• r _ \ v / � / A _ - - - y a�' •+°�• • � �'\A V_ - - ror � �� � �•.✓ . � � • /.r^ - fr++ r ."' "'4..,.. '�+'` 'q+� �', .rG. ' / // / / � _ _ - \ _ _ � A � � � � V� I I � �.� _ / / \ � _ �-A' �s I / j • • • ° • ° / '_ � ✓ ' w) �"���-.°\`�"�..� � • ° ° ® ° ° ° ° ° • _-.. � _ �_ / , / `"` '� / / is °" °-.- :. �� � - - ' � // / . _ - \ � \ \ \�AAAAV A\VA\V I \ \ \ 1 � - _ \ _ l •.. j .�....�• l I \\ � "e°•°°°°°®• ��--�. � -°�•- �. �.��-��•-^�_i.�-�'" �� � __-� � �j/// / / \�\�A AA \�\\�\\\VAA � � I I /� � / / I � J \ \- \ • APPROVED SWM FOREST & -OPEN SPACE EASEMENT, \ • ® / ® ° H - - -TYPICAL UNDER THIS PLAN's l= -\•�� \- = - _ = ORIGINAL WPO 202000053. / / \ \\\ \\ \ \� • • �� �_ '� ml _��[ _�,�❑'°_-_ _- _' .�"/ �__ ��vv� = v � v �v _ � � � / wv V\�VAAA VAA�Aw � l • \ - � ° ° �� V �X � �J�-�-�- /fir l-����� � �V A � '� i � ��' V � / / \ \\ �A�A�VA� ��\\\� � \\ A \\ V s I � I I I I I I I I 0 I� � � v �vvvvvv�vvvvv-�.•vv �---'�� i EDI I I I I � vv�A A vAAv ��° �-• -"'°•� // , f0 D[J C U LL \ \ p❑ 1 - - - - WATERSHED SUMMARY FOR SUBAREA B _ o CN STORMWATER MANAGEMENT dVATER E IJANTITYONARRATIVE❑ OVERVIEW❑ DAB (Pre-Dev.) 64 THE PROPOSED STORMWATER MANAGEMENT PLAN COMPLIES WITH PART IIB SWM REQUIREMENTS. CHANNEL IDA B (Post-Dev.) 73 ❑ [MOOD PROTECTION COMPLIANCE ARE MET IN ACCORDANCE WITH MINIMUM 9 VAC 25-m0-07 REEIAREMENTS. PLEASE SEE THE ATTACHED STORMWATER MANAGEMENT CALCULATIONS PACEET ®R ADDITIONAL DETAILS PERTAINING TO THIS PLAN'OSTORMWATER OJANTITY COMPLIANCE. WATERSHED SUMMARY FOR SUBAREA C WATER QUANTITY SUMMARY J THE VAST MAJORITY OOTHIS PLAN'OPROPOSED DEVELOPMENT IS CAPTURED VIA STORMWATER CONVEYANCE - - _ - - SYSTEMS. THE PROPOSED STORM SEWER SYSTEMS DISCHARGE INTO THREE PROPOSED STORMWATER ] MANAGEMENT FACILITIES, EACH OOWHICH HAS A CONCENTRATED OUTIALL. SWM EACILITY'B' ATTENUATES RUNODDCILITY C' ATTENUATES RUNOODEROM SUBAREA'C' AND SWM �CILiTY NED ❑ n [ ' ATTE CHANNELAND PROTECTION ANALYSES WERE DDERREE I TODODD AT ALLNT OOTHESBEREA'D'. P N S. n YARD DRAIN NOTES: FROM A CHANNEL PROTECTION STANDPOINT, ALL THREE STORMWATER MANAGEMENT FACILITIES ARE 1. FINAL DESIGN (ELEVATIONS, DIAMETERS, SLOPES, etc.) OF YARD COMPLIANT WITH 9 VAC 25-a0-O7SUBSECTION B.00IffNERGY BALANCEOAND THE LIMITS OOANALYSES DRAINS WILL BE PROVIDED WITH THE FINAL SITE PLAN. AT THE SWM OICILITIES SINCE SUBSECTION B.00IS MET. FROM A a00D PROTECTION STANDPOINT, -STOP 2. ALL ROOF DRAINAGE SCHEMATICALLY SHOWN WITHIN ALL THREE SUBAREAS ARE COMPLIANT WITH 9 VAC 25-m0-mSUBSECTION C.2.00LONEINES THE 10-Et POST -DEVELOPMENT SUBAREAS B, C & D DRAINING TO SWM FACILITIES POST-DEV. STORM EVENT WITHIN ®SWM 01CILITIES AND THEIR OUTEALL PIPESO THE a00D PROTECTION SHALL BE PIPED DIRECTLY TO YARD DRAINS, OR SHEET FLOW TO LIMITS OOANALYSES EDR THE THREE SWM FACILITIES IS SET BY SUBSECTION C.000NE SWM EACILTTIES INLETS, AND SHALL BE DETAINED VIA THE PROPOSED SWM FACILITIES. OUTEALL TO A MAPPED a0ODPLAIN OR OTHER a00D-PRONE AREAO / / X Area, ac. 7.97 7.97 1-year Flow, 2-year Flow, 10-year Flow, cfs cfs cfs 4.31 7.75 19.90 0.90 5.21 22.20 Area, 1-year Flow, 2-year Flow, 10-year Flow, CN ac. cfs cfs cfs FDA (Pre-Dev.) 63 9.01 3.86 7.43 19.61 DAC (Post-Dev.) 75 9.01 1.40 10.11 22.22 WATERSHED SUMMARY FOR SUBAREA D Area, 1-year Flow, 2-year Flow, 10-year Flow, CN ac. cfs cfs cfs DAD (Pre-Dev.) 61 4.79 1.29 2.58 8.32 DA D (Po st-Dev.) 79 4.79 0.31 6.22 16.08 \\ W N I SUBAREAS A& B /� 1\1 r 12.68 ac. L9 CY) LU❑ z } / C7 P__4 ` C5) z Z" \•t / /� `�\ M Z ? a 3 CLUC ❑ 0 N G LU C) N Q it\III r L- LOCATION OF APPROVED PHASE I N z a LEVEL II BIORETENTION BASIN W Q Q _ - LL m ^• _J \ ,-- CO LU s / LU ( � o V/ LU IIIII: \ �.\ ••' �- . Q LD II I RAMBLING BROOK LANE �v• L ® •,..,.• ,.• J Z CONNECTOR ROAD SUBAREA A ' ° • . • , _F - -I - H� Q ° IIIII 1.10 acLU . / \ ® LLI Un IIIII II III \`\ /�^'.,T• \_ QLU o Y Q / CO 00 Ul LU z LU 0 W LU� z S 0 LU LLI w a a. i o a O x / / X f / t L \ Q \ W E Impervious Area Summary Impervious Area Summary o w Post -Development Subarea B Post -Development Subarea C \ Proposed Roads 35,150 sf Impervious Area Summary L 0 Proposed Roads 15,075 sf JOB No. Proposed Sidewalk 5,025 sf Proposed Sidewalk 13,975 sf Post -Development Subarea D 182154 Proposed Driveways 9,495 sf Proposed Driveways 14,310 sf Proposed Roads 33500 sf o SCALE Proposed Residences 34,500 sf Proposed Residences 55,775 sf Proposed Sidewalk 7275 sf 1"=100 ` Existing Residences 37,600 sf Existing Residences 26,800 sf Proposed Driveways 11,475 sf Q SHEET NO. 15 Existing Roads 11,925 sf Existing Roads 7,750 sf Proposed Residences 48500 sf N ° 113,620 sf 153,760 sf 100,750 sf / STORMWATER MANAGEMENT WATER DUALITY NARRATIVE❑ I ,�O POST -DEVELOPMENT SWM WATER QUALITY PLAN: SC4LE I "=100' \ OVERVIEW❑ \ THE PROPOSED STORMWATER MANAGEMENT PLAN COMPLIES WITH PART IIB SWIM REEIRREMENTS. TWO - \ ANALYSES WERE PEREDRMED WITH THIS SUBMITTAL. THE DRST ANALYSIS IS ®R THIS PLAN AND I \ - ' r o _ - = _ - - =J `C - \ \ CONDRMS THE MINIMUM PHOSPHOROUS REMOVAL RATES ARE ACHIEVED EDR THE DEVELOPMENT OD THE TOTAL ESC LIMITS OF _ - - - -- - _ - -� / / -W \ PHASES I, II ❑III. THIS ANALYSIS YIELDED A SURPLUS ODWATER EIJALITY CREDIT, WHICH WILL BE _ __ _DISTURBANCE BOUNDARY AREA=34.49 APPLIED TO THE CONNECTOR ROAD VSMP PLAN E9JPO 2019000270 THE SECOND WATER EIJALITY ANALYSIS / ' / ' W - / / ':' -%�`" / `%•` \ PER®RMED WAS TO CONORM THE MINIMUM PHOSPHOROUS REMOVAL RATES ARE ACHIEVED IJDR THE \ _ acres, IS USED FOR THE TOTAL VRRM \ \OVERALL PLEASANT GREEN DEVELOPMENT ®PHASES I, II, III ❑THE CONNECTOR ROAD❑ IN BOTH \ / BOUNDARY FOR WATER QUALITY ANALYSES THE MINIMUM PHOSPHOROUS REMOVAL RATES WERE ACHIEVED. PLEASE SEE THE ATTACHED \ s "` - / ;x0 k. /•.� / / , �" az STORMWATER MANAGEMENT CALCULATIONS PACEET EDR ADDITIONAL DETAILS. WATER DUALITY SUMMARY 010/ _ ^ "•., ///\ THE BOUNDARY EDR THE DRST ANALYSIS DID THE BOUNDARY EDR PHASES I, II DIIIEHAS A TOTAL LIMITS ' a °" ODDISTURBANCE AREA ODEP.50 ACRES. THIS BOUNDARY WAS USED EDR THE VIRGINIA RUNOD7 / p �j 'i ' ' / ❑ M �� % REDUCTION METHOD'DWATER DUALITY BOUNDARY AND RESULTED IN AN OVERALL REDUIRED4--• PHOSPHOROUS REMOVAL RATE 20' EUEE THE BOUNDARY EDR THE SECOND ANALYSIS DID THE BOUNDARY ®R PHASES I, If, III OTHE CONNECTOR i / SOW \ V ROADEHAS A TOTAL LIMITS ODDISTURBANCE AREA OD0703 ACRES. THIS BOUNDARY ENCOMPASSES THE ' ( 1 �, _ / ` ENTIRE PLEASANT GREEN DEVELOPMENT AND WAS USED ®R THE VIRGINIA RUNOEDREDUCTION METHOD-0 000 4 / WATER EIJALITY BOUNDARY. THIS BOUNDARY RESULTED IN AN OVERALL REEIRRED PHOSPHOROUS ) \ / '� 1 a • / \ e �, • �,, „\ \�� / O C REMOVAL RATE 20EY EU11 ®R THE ENTIRE PLEASANT GREEN DEVELOPMENT. \ \ / i ` THE MINIMUM PHOSPHOROUS REMOVAL RATES NOTED ABOVE ARE MITIGATED THROUGH THE IMPLEMENTATION ODMULTIPLE BEST MANAGEMENT PRACTICES. PHASE I UIVPO 20190000=11HAS BEEN APPROVED WITH A PROPOSED LEVEL II BIORETENTION BASIN TREATING SUBAREA E. PHASE I ALSO / UTILIEED THE BEST MANAGEMENT PRACTICE OOPURCHASING NUTRIENT CREDITS E9VPO 20190000Q WPO / ( 201900027 OWPO 201900027 AMENDMENT 010 THIS PLAN, WHICH ENCOMPASSES PHASES II AND III, TREATS SUBAREA B VIA A LEVEL II WET POND AND BY RELEASING ITS TREATMENT VOLUME RUNOD7IN A \ O SHEET D.OW MANNER TO A CONSERVED OPEN SPACE. THIS PLAN ALSO TREATS SUBAREAS C ❑ D BY i' � / SUBAREA D 6 SCOTT/R. CULLINSZ No. 35791 ,� ' 7/29/22� '1ti13VONAL RELEASING THEIR RESPECTIVE TREATMENT VOLUME RUNOD7IN SHEET aOW MANNERS TO VEGETATED ' I > �' �' J • / d,.�\ DLTER STRIPS. A BREAOJOWN ODEACH BMP AND ITS REMOVAL RATES PROVIDED ARE SHOWN ON THIS , - �: \ - , \\ \\ SHEET. p AErER THE IMPLEMENTATION OOTHE ABOVE BMPQ WHICH ARE APPROVED WITH PHASE I OR PROPOSED / / // / ' / t �� / 1� \ \ rz WITH THIS PLAN, A TOTAL PHOSPHOROUS REMOVAL RATE 0025.mEU11 IS PROVIDED. ALSO, A MINIMUM V m 00750 OOTHE RE TARED PHOSPHOROUS REMOVAL RATE IS PROVIDED/TREATED ONSITE. ii ' \0 CD 4 / / O / / / / / / \ / / � � � - - � i / �,' _' i .... • . ,... - � ,- � C� >�I' ,%' ' ,'/ � - .�„ / /� / l�� III in z n H /, / / / ice' / �- Q/� .. _ , ,_ ��_� , -i ^... ^ (ni ^ ,'•� ////�//A� "' /�I� U ww , A 4. AA A w ' " I \ SUBAREA B ,.r'lw. / \.i)� •° r`s A WATER QUALITY GROUND COVER MASTER PLAN SUMMARIES SUBAREA E � /a APPROVED LEVEL II BIORETENTION BASIN Phase I Limits of Disturbance 15.51 ac. ° - /� //j ' (ASSOCIATED WITH PHASE I, WPO 201900003) �,,,�,. Connector Road Limits of Disturbance 1.99 ac. �� � //�' COVERED UNDER SEPARATE PLAN ®� Phases 11 & III Limits of Disturbance not Previously Covered 16.99 ac. v v i �' - - • �V °®/ under Separate Permit Total Limits of Disturbance = 34.49 ac. / �� S- �v / / ° 7 • • ®® ° ° / - — - -' " ��APPROVED LIMITS OF DISTURBANC r� ��, / + r. •x; f -° " ..�� °®° ° • • • ° ° °®° ®®. ®° °�%- -� Used for VRRM WaterQuality Boundary) i A ° ! (ASSOCIATED WITH PHASE I, WPO 201900003) // "�/�•�•� i'�..� �� / r '.r ®' ®° ®APPROVED LIMITS OF DISTURBANCE ( Y Y) / E II I 'I i —PROPOSED LIMITS OF DISTURBANCE rr4 / ass / ✓ \ \� / - " °� ASSOCIATED WITH THIS PLAN (ASSOCIATED WITH THE CONNECTOR ROAD, WPO ......'. .... S ! `O � �' r .. s � � / \�•� %° ° ° / ORIGINAL WPO PLAN) NOT PREVIOUSLY • j///�/� - - � - - o-.••.. A�\'� �c - - ;". / ° • ®°/: COVERED UNDER A SEPARATE q_ 0190�7)-COVERED-1111rDER SEPARATE PLANS 9 c _ IotallmpervousAreas= 13.59ac. --- - 3 \L9 m_ ~ ®' j ° ° • • \ -� �� _ i // Managed Turf Areas Within LOD- Soil Type B 19.42 ac. \ W 7cPPROVED�SWM�FOREST Managed Turf Areas WithinLOD-SoilTypeA 1.48ac, / ®I MATCHLINE, SEE / - �" ®® o / °,.• / ,. _---- EMEn�_ �/ / THIS SHEET PA£�E - - / Total Managed Turf Areas 20.90 ac. / !tAI t l °i / - r �Y • (v� 3 >• \1 1 =Ill j l 1 e ' /1 1.1777 ,1 • . \ \ PRE -DEVELOPMENT SWM WATER QUALITY PLAN: - - N a k - MATCHLINE, SEE J ••.. �• -- ,- y = _ rE z ° THIS SHEET / \ //,> O� - — — - - ( ,- / / �w v j�=r d w 4 SC4LE 1" 100' Li THE TOTAL ESC LIMITS OF -- -- - / / i ° w_------ / I — \I \ \®.. t \� ` \ �. _ ` -DISTURBANCE BOUNDARY, AREA=34.49 - /— / -- / -�� ) /i . F. - - -� \ / j CN J _ • / ®.�• / \,\ \\ IIIIII \ \ � �. \/-��/��•�' �I'\ acres IS USED FOR THE TOTAL VRRM �� --w,� �.�, �...- /;.:.�," .� tx� l •µ, �,-' .�, \ � Q \ Or• Q BOUNDARY FOR WATER QUALITY •\_ —/ li I`` \��— `\� �i�"�`'l \ • /%//=,�Y_—� \ \ / o W /�///�/ I P � / o CO _ � ,rnC�,rirrrFK�d� 1 0 APPROVED LIMITS OF DISTURBANCE (PbFASFI;-.,\ - J WPO 201900 3, WPO 20190oH'Z�--W(?O - i /// // / / / / \ \ �/ �i _ - \ ' / / / / / / �._ ` / / / / I / / - - ;' O Q 2019 027 AMEN MENT #1) & PR D LIMITS F D TURBA CE (CONNECT ROAD, WPO 2019000 CO ERE❑ UNDER PARATE PLANS). / /J//. \ / 1 ..� — / / / / — / / / / / / " - = LU /A� (� LU LU CIL LUo' LIMITS OF DISTURBANCE NOTE: Z_\�7 /1/ll / Ul CO THIS PLAN's WPO 202000053 ORIGINALLY L.L Q o �' / / S� - / / /,.- / / vv O� % // / / / F .� w Q/ a, / i / ///� -- / / �� -� / /�/O', / LU z TOTALING 16.99 acres IS NOT MODIFIED WITH THIS / \ — O s /,� / / / \__//// — — / / / //—%% , / , /„ / / ` \ t ce H N / _ AMENDMENT #1). / \ / / �/ / /— -- O \ /f /// // F- w z AMENDMENT (WPO 202000053 AME / / / / / / /// / _ / //-- — rl % / /// / �i �� // O/ ////\ / /// //� �-' - --��// //// O / / O/ /i/ /. /�// / \sj \`3, • O_.. ,w' ,,. y �.:./ _ / \\ \ -0.., ., '."F l LU o LL PLEASANT GREEN WATER QUALITY MASTER _ N PLAN Q U) SUMMARY OF PHOSPHOROUS REMOVAL RATE REQUIRED I, 7 Total Phosphorous Removal Rate Required for Proposed Pleasant Green Phases I, II, III and the Connector Road 24.67 Ibs/yr \\ \ SUBAREA E, APPROVED LEVEL II BIORETENTION BASIN (J /Y / / // �/ / / / / - -i _ i'� - ��_ — (See this plan's reportforthe Phases I, II & III andthe Overall Pleasant Green Water Quality Analyses) \..0 '7 \ < a //i�/ (ASSOCIATED WITH PHASE I, WPO 201900003) CD \ / / COVERED UNDER SEPARATE PLAN O d NOTE: A Phos horous Removal Rate of 0.27 lbs r was Provided (By Others for the Connector Road's Im acts to a SWM Forest & O en Space Esmt. This 0.27 Ibs/yr credit is independent of the Pleasant Green development and is not used in this table's compuations. See WPO 201600069 Amendment #1 for,, •.� \ _ :III I - / / o additional details. "�yy°' ° • • \ !, 1(- / APPROVED LIMITS OF DISTURBANC - / ASSOCIATED WITH PHASE I WPO 201900003) W / / i - �� ° ° • •. ° ` ®• e "' / \ ` -I _ PROPOSED LIMITS OF DISTURBANCESUMMARY 3 Approved PhOase li(WPOOROUS 201900003) Phosphorous TE PROVIDED Rate Achieved from Nutrient Credits 6.97 Ibs/yr / \ \ SS- (ASSOCIATED WITH THE CONNECTOR ROAD, WPO H //'�� o / O �.�•� / / / _ / /""� / �, APPROVED LIMITS OF DISTURBANCE "' % 7, I 01900 7)£OVER€D-t11�DER SEPARATE PLANS w a- H o (ASSOCIATED WITH THIS PLAN s 1, 1 I I �. w \ \ \ / ®® ORIGINAL WPO PLAN) NOT PREVIOUSLY Approved Phase l Borrow Area(WP0201900027&WPO 201900027 Amendment#1) Phosphorous Removal Rate Achieved from Nutrient Credits 0.18 Ibs/yr 1 I ✓ -- 0 w ° /• • . Proposed Phosphorous Removal Rate Achieved from Phases II & III (WPO 202000053) Level II Wet Pond Outfallingto Conservation Area (Subarea B) 7.59 Ibs/yr / _ _ " COVERED UNDER A SEPARATE PLAN I I ` / _ - a to • _ •-�•" - - / / • ° • ° / "" Proposed Phosphorous Removal Rate Achieved from Phases II &III (WPO 202000053) Outfall to a Vegetated Filter5trip (Subarea C) 5.07 Ibs/yr / - I ., .; I • - - _ _ - - JOB N0. 0 ®/ / { ' �•� i ° \ - ° • ° ° • ° ° ° ° ° ® - ®° , Proposed Phosphorous Removal Rate Achieved from Phases II & III WPO 202000053 Outfall to a Vegetated Filter Strip (SubareaD) 3.06 Ibs r • • • °' , • - - - - o 54 Approved Phase 1 (WP0 201900003) Phosphorous Removal Rate Achieved from the Level II B!oretent!on Basin (Subarea E) 1.42 Ibs/yr / / • ° ®, / �'� j ° ®�^ �.,%' ' / r0, • ®° ° ®° ° ° -- - _. __ _ ' ° ° ° ° Proposed Phosphorous Removal Rate Achieved from Phases II & III (WP0 202000053) SWM Forest & Open Space Easement 1.59 Ibs/yr \\ - �, \®\ _ �' y' / - - - ' / SzSCALE 10, / / _ - ••a®. ..r i / MATCHLINE SEE® / / _ -�•" - - -- A�PROVED�SWM FOREST Total Phosphorous Removal Rate Provided 25.88 Ibs/yr r - ��� \ n \ I ,°I SHEET NO. / �; THIS SHEET �- / a w ns! 1 . 'Total Phosphorous Removal Rate Provided O 'te 8 73 Ibs/ r I • , . •/• w \ �- •� --'- ---- `� o• ---- -.. -- -- _ � - -- _----- � � _ - - - �- � / i Percentage of the Required Phosphorous Removal Rate Treated Onsite (18.73 / 24.67 x 100) 76 % _ \I I t I I I III I I i .� a.I •I f-� I I \� � `� • ®® 1 1 ❑ � N FLOW PATH > 3A / (FLOW LENGTH=z38' /WIDTH=45) I�� \ OCJVT �TOR�SHALL USE NUTRIEN ICH TOPSbtLFOR THE / AQ ATI ENCH & SHALL ENSURE H ALTHjGROWTFOF PLANTINGS / _ _ -764- STORM WATER MANAGEMENT EACILITY 'B' DETAIL, SCALE 1"=m' 2'WIDE INTERIM TOP OF DAM ELEV.=746'. RUNOFF FROM THE WETLANDS & FOREBAY CELLS TO ENTER THE MAIN CELL VIA AN OVERTOPPING.o'WIDE TOP OF PUR'IN THE FIRS K€AR (TYP.) / \ _ _ \ / k / \ `8' WIDE VDOT CL. AI RIPRAP LINED \ \ \ S� FOREBAY SPILLWAY CREST ELEV.=745 \ SPILLWAY TO CONVEY RUNOFF FROM WETLANDS � FOREBAY TO WETLANDS CELL \ zo' WIDE, 12" DEEP - - _ C - CELL \ / \ AQUATIC BENCH �H0I2TEST FLOW PATH (83') OV.g2ALL LENGTPti(zo3')> o.8 I' \ \ I f 1 + 0 SEy� q OF>Ssf C / �v � ���\ - - - T9 PREVENT FLOTATI N THE � - - - - � �� � / � \ S `R SER BASE SHALL BE FI MLY I \� / 2 / - STR. B-100, A VDOT STD. B-1 (CONCRETE MANHOLE BASE WITH A _ \ \ / / \ , \EMBEDDED 6" INTO A' 048 ) SHALL SERVE AS THE RISER s LOWER SECTION, IN r TICK REINFORCED CONCRETE LC {V / CONJUNCTION WITH THE PROPOSED REINFORCED CONCRETE ��\) t,FOU`NDAII THAT IS 8'x8',I - NC / R RFB - ,X / < FOUNDATION. A 048" STANDPIPE WITH A RIM ELEVATION OF 747.67' NNBURIED BELbI(JGROUND. / CE qy' / SHALL COMPLETE THE STRUCTURE. RISER TO INCLUDE (1) ONE \� \ J PERMANENT 06" LOW -FLOW ORIFICE WITH AN INVERT444 41, PROPOND VARIABLE WIDT(i I S>Ssp ` \ _,$WM ACCESS ESMT. I �I r// _ - ELEV.=746.00. CONTRACTOR SHALL PERMANENTLY PLUG ANY S \ \ V GF eC' l ^ N / ��/ \ V � EXISTING TEMPORARY ESC DEWATERING ORIFICES WATERTIGHT AT �F \ \\ I �T \ `9 - - - - \TIME OF THE FACILITY's CONVERSION, OR REMOVE THE UPPER \741, r \ \ TEMPORARY RINGS. ALL ORIFICE OPENINGS SHALL HAVE STATE \ APPROVED TRASHRACKS, TYPICAL. SEE THE DETAILS ON SHEET 19, S,♦ \�Q �� ,.� 0+00 OR EQUIVALENT, FOR ADDITIONAL INFORMATION.PROPOSED \\ \ PROVIDE ELL PRETREATMENT UPLAND _ o P REBAY TO \ y PRETREATMENT UPLAND lik i OF MAIN WETLAND CELL. - PROPOSED 30WIDE VD�R6L.� �,IPRAP LINED EMERGENCY SPILLWAN, - _ - Ss >,p A ` V A 6 W/ 4:2 SIDE SLOPES & FILTER FABRIC + \ UNDERLAYMENT (STONE DEPTH- 8') 'o'WIDETOP'OFDAM ✓p \\ \ \ SPIILLWIAYY CREST ELEV.=748.67z v 7 \ \ Vv ELEV.=jSo.00', TYP PROPOSED io'WIDE GRASS \ �\ O O O SEE THIS SHEET FOR\ "^ `\� LINED, GRADEDSWMACCESS \ \ J SCALED PROFILES OF \ v bYR B-102 (z°h MAX. CROSS SLOPE) 3 \ THE SWM FACILITY, TYP. \ \ \ o F c�Dl'I .IN , `�� ` 1, WPO STREAM\� ? \ is BUFFER; TYP \ \\ - PROPOSED V $J♦E WID;f60.,-„ro SWM FOREST& OPEIzYS9CE �� I EASEMENT. �� 'STR B-104 \ PROPOSED STR B-107, A 08" LOW -FLOW OUTFALL CARRYING THE TREATMENT VOLUME \ \ I ~ FLOW TO LEVEL SPREADER'B' (75.5LF OF 08" HOPE @ 1.00% (II=736.37, IO=735.61) Y \ rF Il \M \ �\� V �� ♦�� '� I �, A / A \ \ V STR B-108 O ( VDOT MH 1 STR B-109 \ \ \ O y O \ RIM=739.50 ° \ \ \ \\ \ / I �''♦. 65.45 LF OF 08" HDPE @ 0.90% \/> (II=735.51, IO=734.92) / r STR B-110 / O VDOT MH 1 \ \ RIM=737.00 \ \ \ \ \ \ o \ r \ o \ \ STR B-111 <1.90 LF OF 08" HOPE @ 3.68 0 (II=734.82, IO=734.75) \ \ \\ \ \ O \ \ \ / E V O -p PROPOSED VDOT STD. CLASS Al RIPRAP LINED OUTLET PROTECTION \ \ PROPOSEDEE LONG FLAT LEVEL "WIDE EGID LS TO o G �. � WITH FILTER FABRIC UNDERLAYMENT (L=8', W1=3', Wz=g', D=zB") HAVEAzz"DEEP PLUNGE POOL&6"WIDERIGID LIP. LS TO INCLUDE A VDOT CL. Al RIPRAP LINING AND A SLOPED -. \ 734.75- BEGINNING OF LEVEL SPREADER\ \ 1 3(MIN.)VDOTCL. Al RIPRAP LINED EMBANKMENT - , DOWNSTREAM FROM THE RIGID LIP EXTENDING TO THE °O T4 733.5- BOTTOM OF LEVEL SPREADER \ \ \ ° ♦ \� EXISTING GRADE. ALL RIPRAPTO INCLUDE FILTER FABRIC \ - .,♦„ 734.5- TOP OF LEVEL SPREADER UNDERLAYMENT \& BE A MIN. OF i8" DEEP. A \ ` O � ,♦, (y � \ \ \ \ \ \ \ \ \ O O e C PROPOSED FLAT VDOT CL. AlRIPRAP O \ I 1 73 _ LINED OUTLET PROTECTIONWITH \ \ OU v \\ \ FILTER FABRIC UNDERLAYMENT / \ MIN. L=z Wi=6' Wz= . D=i8" �-\ "J "l734.0 \ \ ( s, 7 s, ) \ I , O 68' 733.E s \ \ \ \ o \ \ �+ o / 0 �1 AQUATIC BENCH (ZONE 1) PLANTING SCHEDULE FORSWM FACILITY \\ \\ ( ` T PROPOSED 68'Wx5oUCONSERVATION EASEMENT. AREA WITHIN \ \ \ + (D EASEMENT TO REMAIN UNDISTURBED & TO BE LOCATED �\ \ \ I '0 ,1 0': M X. O O- 1. OUTSIDE THE LIMITS OF DISTURBANCE. NO GRADING OR \\ \ \ CT? n\\ _- SL-0PE= V* @ 01 CLEARING OF NATIVE VEGETATION IS ALLOWED WITHIN THE �\ \ 1 1^ EASEMENT EASEMENT PREVENTS FUTURE DEVELOPMENT. ZONE PLANTINGS vV AQ A� A A +18�� O O v�� SYM BOTANICAL COMMON NAME 9ZE SWM FACILITY QUANTITY COVERAGE (st) PC PONTEDERIA PECTINATUS POND WEED 850 VA VALISNERIAAMERICANA WILD CELERY 600 EC ELODEACANADENSIS WATERWEED 725 GENERAL SWM NOTES: z. STATE APPROVED TRASH RACKS SHALL BE INSTALLED ON ALL ORIFICE OPENINGS. SEE DETAILS ON SHEET zg, OR EQUIVALENT, FOR INSTALLATION. z. CONCRETE FOUNDATIONS SHALL BE INSTALLED ON ALL RISER STRUCTURES MEETING MINIMUM VESCH 3.14 SPECIFICATIONS. 3. CONTRACTOR SHALL HIRE ATHIRD PARTY GEOTECHNICAL ENGINEER TO ENSURE THE EMBANKMENTS ARE STRUCTURALLY SOUND. THE EMBANKMENTS SHALL HAVE COMPACTED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN IN THIS PLAN. BERMS AND SPILLWAYS SHALL BE STABILIZED WITH EC-3 MATTING AND RIPRAP AND THE REMAINING DISTURBED EMBANKMENT SLOPES SHALL BE STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST OF ML, CL, SC OR GC SOILS & BE FREE OF WOOD, ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL. COMPACTED FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 9596OF MAXIMUM DRY DENSITY AND 29'a OF OPTIMUM MOISTURE CONTENT. ALL EXISTING AND PROPOSED FILL MATERIAL AND PROPOSED CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS, AND PRESENT DURING THE CORE SAMPLING. 4. THE DOWNSTREAM EMBANKMENT SIDE SLOPES OF ALL PERMANENT FACILITIES SHALL HAVE A MAXIMUM 3:2 SLOPE. S. CONTRACTOR SHALL EXCAVATE SEDIMENT LADEN MATERIAL IN THE ESC SEDIMENT BASINS AT THE TIME OFTHE FACILITIES' CONVERSIONS TO PERMANENT SWM FACILITIES. AT THIS TIME THE CONTRACTOR SHALL REGRADE THE SEDIMENT BASINS TO THE PROPOSED GRADES SHOWN ON THE SWM SHEETS. THE CONTRACTOR SHALL MINIMIZE SOIL COMPACTION DURING THE CONVERSIONS. CONSERVATION AREA BELOW LEVEL SPREADER &LEVEL SPREADER REQUIREMENTS: MAINTENANCE INSPECTIONS: ANNUAL INSPECTIONS SHALL BE CONDUCTED IN THE NON -GROWING SEASON DURING THE FALL AND WINTER MONTHS. INSPECTIONS SHALL TRIGGER MAINTENANCE OPERATIONS, AS REQUIRED. MAINTENANCE OPERATIONS MAY INCLUDE, BUT IS NOT LIMITED TO, SEDIMENT REMOVAL, PERIODIC MOWING, REPAIR OFTHE LEVEL SPREADER AND ENSURING A DENSE, HEALTHY VEGETATED GROUNDCOVER. MOWING SHALL BE COMPLETED AT LEAST TWICE A YEAR TO PREVENT FURTHER WOODY GROWTH AND SPOT RE -VEGETATION OF THE CONSERVATION AREA IS REQUIRED IN ORDER TO MAINTAIN Agogh MINIMUM COVERAGE RATE. THE CONTRACTOR SHALL CONDUCT THE INSPECTIONS FOLLOWING THE FIRST YEAR THE PROJECT IS COMPLETED, AND THE OWNER SHALL CONDUCT THE INSPECTIONS THEREAFTER. INSPECTIONS SHALL INCLUDE THE FOLLOWING ATA MINIMUM: i. ENSURE FLOW PATHS ARE NOT SHORT-CIRCUITED IN THE LEVEL SPREADER AND THROUGH THE CONSERVATION AREA. r z. ENSURE DEBRIS AND SEDIMENT HAS NOT ACCUMULATED. L 3. CHECK FOR SCOUR AND EROSION WITHIN THE LEVEL SPREADER SYSTEM AND CONSERVATION AREA. y. CHECK FOR FOOT OR VEHICULAR TRAFFIC DAMAGE IN THE STONE. IN THE EVENT MAINTENANCE IS REQUIRED DURING THE ABOVE NOTED INSPECTIONS, CORRECTIVE MEASURES SHALL BE COMPLETED IMMEDIATELY. % PROPOSED 30' WIDE VDOT CL. Al RIPRAP LINED EMERGENCY SPILLWAY w/y:z SIDE SLOPES & FILTER FABRIC UNDERLAYMENT (STONE DEPTH=iB"). SPILLWAY CREST ELEV.=748.67' . 755 � zE EV.=75o.00', TYPM 755IT 750 750 PROPO ED X STING 30 G GRAD ADE 745 745 O L OO O O O �O�O�1 uO 0+50 0+75 732.2 @ O 40PE RANGE 3-06% o WET POND W DESIGN & REQUIREMENTS Treatment Volume, Tv (VRRM) 12,892 cf Minimum Treatment Volume Required for Level II Basin 19,338 cf Treatment Volume Provided at MWSE 13,203 cf Minimum Percentage of Tv Provided at MWSE 50 PROFILE SCALES SWM FACILITY B SPILLWAY STORMWATER MANAGEMENT FACILITY GRADING Elevation (ft) Area of Forebay Cell Contours (sf) Volume (cf) 740 287 0 741 474 377 742 699 959 743 957 1,784 744 1,247 2,883 745 1,568 4,287 746 1919 6,028 748 - - 760 - - Elevation (ft) Area of Main Cell Contours (sf) Volume (cf) 740 741 87 742 360 0 743 818 574 744 1,344 1,644 745 2658 3,332 746 3809 6,221 748 10345 19,842 760 14767 44,823 STR. B-100, A VDOT STD. B-1 (CONCRETE MANHOLE BASE WITH A 048") SHALL SERVE AS THE RISER's LOWER SECTION, IN CON]UNCTION WITH THE PROPOSED REINFORCED CONCRETE FOUNDATION. A 048" STANDPIPE WITH A RIM ELEVATION OF 747.67' SHALL COMPLETE THE STRUCTURE. RISER TO INCLUDE (1) ONE PERMANENT 06" LOW -FLOW ORIFICE WITH AN INVERT ELEV.=746.00. CONTRACTOR SHALL PERMANENTLY PLUG ANY EXISTING TEMPORARY ESC DEWATERING ORIFICES WATERTIGHT AT THE TIME OF THE FACILITY'S CONVERSION, OR REMOVE THE UPPER TEMPORARY RINGS. ALL ORIFICE OPENINGS SHALL HAVE STATE APPROVED TRASHRACKS, TYPICAL. SEE THE DETAILS ON SHEET 19, OR EQUIVALENT, FOR ADDITIONAL INFORMATION. 100-yr PEAK WSE=748.89 755 10-yr PEAK WSE=748.31 //,2-vr PEAK WSE=747.89 755 HOPE -yr AK W = PROPOSDzo'WI ETOPO DAM EL€V.=75o.0 (M XIMUM ROSSSLOPE OF zb/o). � CONTRACTOR S ALL IN L z'WIDEIN ERIM EMBANKMENT I ACCOf�DANTAL CE / 750 OP OF AM I THE DESIGNS S OWN 0 SHEE 19. 750 =71 6'. I STR. B-z z WET POND TO INCLUDE AN VDOTMII -z AERATOR. SEE THIS SHEET �S RIM=749. o FOR DETAILS, OR EQUIVALENT. 9f � ROOOS D GRAD 745 745 o WIDE zz'DEE STR. B-z0y AQUATIC BENCH EXISTIN VDOT MH-z RIM=742.30 i id GRAD l e Ild n �[[,,ld e "Been:: sek"d"La"" l��(ekk LINED OUTLET ROTECTION WITH 740 §f(n Ig_ ��((kl (g„ FILT R FABRI UNDERLAYMENT 740 _a MIN. L=z ' Wi 6' PROPOS D 6' DEEP FOREB YTO PRO IDE PRE REATME T UPLAND OF MAIN CELL &122.56 F OF 02 "HDPE ETLAN CELL. @ 1.000 (II=73 .48, I0= 38.26) 735 STR B-103 88.91 F OF 024" Elevation (ft) Area of Wetland Cell Contours (sf) Volume (cf) 740 - - 741 - - 742 - - 743 - - 744 60 0 745 320 166 746 669 649 748 - - 750 - - Elevation (ft) Total Facility Area Contours (sf) Volume (cf) 740 287 0 741 661 416 742 1,059 1,213 743 1,775 2,616 744 2,641 4,809 745 3,946 8,080 746 6,397 13,203 748 10,345 29,787 750 14,767 64,769 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+25 SWM FACILITY B SECTION AIR FLO 3 DIFFUSED AERATION SYSTEM SPECIFICATIONS PURPOSE the diffused air, aeration manufacturer shall provide an underwater aenthn system deigned to aerate, deavatity, and circulate water without disturbing the natural surmuntlirgs of the lake environment. SCOPE The diffused air, aeration package shall be capable of being installed In lakes deeper than aft 11 m). PACKAGE: This aeration package shall include the following equipment a. Air compressor cabinet enclosure. To Include compressor(s), circuit disconnect, and au flow balancing valve mandolds. To be designed to operate on either f. (I power, 1 I S/108/230 wh, single phase 11. SOW power, 220/240 volt, single phase 6. Nr/Oxygen disc diffuser manifolds c. Tubing CABINEVENCIASURE TUBING: IAr4labil in lWft(30*1 lsinu TITnl 0 1 Comprosor TOWI required cubing for system: 0 2 Compressor Net I- m) Non -weighted polyvinyl chloride tubing SPECIFY: 11I volts so Hz feet I- m) Weighted polyethylene chloride tubing DIFFUSER MANIFOLDCSk I5,nole sr Duet Disc) Tubing lengths per diffuser manifold Quantity Type �- Single Disc Manifolds) _ Q feet 00 meters) Non -weighted tubing Dual Disc Mandold(s) J __ • feet meters Weighted cubing - - O 10 ) 9 9 - (for lakes I r h it r II be a l 2HP rock) PISTON AIR COMPRESSOR o a es 3(t m deep or tat e) The a Cpm essonil shot n ( ) D / 9 p 9 split electric motor with tailless lubrication direc[dnve no piton, dual frequency, permanent sp t capacitor (DSU a ea t M belts or pulleys), designed for field service capability, polyurethane rust protection, and m include the following motor protection themnal overload protection, and intake air filter. The serviceable Darts. piston cups. re Winer screws, cylinder o-rings, head is -rings, valve and valve retained: should last two years in continuous operation. These maintenance parts shall be replaceable with common tools. Please consult your local distributor If you require assistant in choosing sizes, accessories, or applications. AIR COMPRESSOR CABINET ENCLOSURE a. Cabinet body and cover construction shall be 18 gauge (0.048in/0. 122cm) 304 stainless steel, and Include EPDM edge -grip seal Is. Cabinet coaling system to consist of two (2) axial exhaust fans and vented Intake louvers on the bottom of the cabinet to provide an au exchange rate of 410-490 CUM c. Compressor4make air to be quick change cartridge type filters d. Cabnet enclosure secured by stainless steel latch to accomodate locking mechanism A,r rle 1 galufea Ica, svitem Spe[i1,uuMi I P/Die I d 2 PM 03-3242 OR APPROVED EQUAL • AIR FLO 3 �, r-Q DIFFUSED AERATION wy + No electrical par• ts in water, safe for recreational use. S _ :'b' - -; °.vnW v.,r+• EKlremrly energy el'Htient and cost effective. F • 12iD (350»tm) discs are coated to proyidr inn -stick surface and offer higher r}J'Icksscls throughout GtecTcle. • operating depths up to AUEt+or 12.2zn+. E PRODUCT ILLUSTRATIONS • year 'eair r all -mllusit c warrant). Complete package includes hlnet with cm n ressoKs) - ulwwemr.w.w.., Im,nswarn Filter and valve diffuser se manifolds; andfuser manlfolA(s). •ea..w,r.as wu.awe olH.nn,..lae e.,..,•,....[.e�exea.mw 5pfcly testrd and listed with En. III ET'L-C, r'on[urn3ittp to UL standards; and tactics a 3rd parry listing with CE. s ',a'^`„i°""'0` m' "'w"' ""';,•""' /IWr FaretaylY <KMpr11r.HM1M IaMM bYnPrmIM1 wrr wqy„ wN.nWW � lin.lb•vtuan ul.n v.l[.,\][M r�..,,.nn•.r,r, n.nYn.e�..,YM.,wm..w r w•s+Ym M.-,M Yrv«<[.e.n «..,Y.P• I n il{q i,V• ryE w le,Nr4tl5vwwmnub uvr.se• j w,. w,w vnr..r[r.n.n.MHM. r rgrl.rM • nyw,y,Yrva,wPolfYunw. t dF c �nn-[ynrt rrJb tlnMOS%NIIW4 „nMn a b[IIry,aN",n unit-••-,•Puui.n n•W. inn,.-v.b,Ybr.w rn I � •i I d rYfRCMWw,M iN lnMurlwr,r<4MUMY Wb1. HS,/.Yia M YwMY.rJn n,n �,<"•�,p. W,-,ae.P.uNCn, < rNn naa � ... � ,. nl.r,-•wn..n�w..a i wsuw r _ - nw:,n,wcV�[r�wiYM clpr ccn eJ ([vnJnn:n� wY..xw nnwNn..cu,n w nwr.[altlna,licn.n PIN 03-3242 OR APPROVED EQUAL PROFILE SCALES 1' S' (V) AIR/OXYGEN DIFFUSER MANIFOLDS: The air/oxygen disc diffusers shall include, but not be Ilmntd to. the following materials of construction. a. Disc type 124n 1350mm1 membrane diffusers allow br maximum 12fFM and are resistant to Ozone and UV b. Membrane material to he premium quality compression molded EPOAI with an oil content of less than 12% c. Diffuser membranes should have a minimum of 10,155 slit perforations and be at last 70%hYdrophdl<, with tensile strength at 2000 psi d. Diffuser to consist of membrane with integral gasket, base, renaming rang, and air flaw control onlice e. Membrane shall collapse and seal when aeration system air is fumed off f. Sealing method of retaining device shall generate a minimum of SO pounds per inch/58 Kg/tin of circumference of the sealing gasket to provide a long term positive seal and to prevent air Binge g. Diffuser bast and retaining ring to be constructed of polypropylene with organic UV stabilizers and a tensile strength or 5000 psi It. Diffuser to have one 3/4in (25cm) connection meeho0 to manifold 1. Each diffuser shall include a manifold that well connM up to two 121 air -discs to the air SuDOtY tubing ). Manifold hose shall be constructed of high-dlniiry polyethylene plastic and incorporate "last channel for level sinking of pads during InsWllatlon WEIGHTED POLYVINYL CHLORIDE TUBING: Tubing shall be constructed of heavy, negative buoyanry, poryvinyl chloride (PVC) material. The PVC tubing shall be 1 /Y (1 tint with a minimum wall thickness of I/4' (.64 cm). Pressure raving shall be 225 psi at 700 F (210 Cl. Coll lengths shall be 100' (30 m), with a weight Der 100' (30 m) of albs 120 kg). Tubing shall be self -sinking, lead free, and contain carbon black for UV protection. Please consult your heal distributor for addl(IOnM In(Ormalion. NON WEIGHTED POLYETHYLENE TUBING: The potyemylame tubing shall be I/2m (lan) with a minimum wall micknesi of .06in (LSmm). Pressure ra[Inq shall be 100 psi at 73 F (22 p. Coil lengths shall be 100' (30 m), with a weight per 1 OOh f30rN of I I Ibt (S kg). Tubing shall can Win Hs carbon black for long term UV protection. Please consult your beat distributor for additional information - ith the FITTINGS. Insert fittings are used to repair, ada pt, or c onn tct w polyethylene tubing. 9s available Slott Include line size coupkn9s, male adalners, and elbows. TESTING: A. Safety - The aerator system shall be tested and approved as a unit Separate component [eating trot allowed. Unit must be tested by ETL, ETL-C, CE, UL or other ucredited testing facilities. B. Performance - Unit must have Independent performance testing provided by GSEE. MANUFACTURER- The diffused air, aeration system shall be An no 3 Sy stems as manufactured byOnerbine Bareho Inc. 3840 MAIN ROAD FAST Emmaus PA 18049, USA PH. (610) 96S-6018, or approved equal. For approved equal status supplier shall reside the PP P the folloWing Information to the project designer, within 10 days of the bid opening date, for written approval. WARRANTY: The anauon System shall mdude a two year warranty on the air compressor, air diffuser and SYSTEM a If 0 Coin res s soH l 1 a rust. 1 Pad r O - 3 - 9 � i 2 s ms<s I v er Dad 1 2 r out rS stem r 2 1 1 _ F_. .� Vd Am Ha V D/ IIS/ /J/60 230 2.1/80 / 220/2.8/80 A 1,34 I 2 AR I 31 ARNI AR112 A•Ylii Af3-NI a b a t 1 • i 115/a9/6q Af3781 ARI.1 M1772 2 x 3 1 • 230N.7/60 220/s.f/50 Ara-272 K3442 1 8 2 • 12 Ag462 underwater cubing. AF3-242; P/N 03-3242 OR APPROVED EQUAL Av rro 3 Ddfusq At Symm Spe[ilkxbm 11y 2 M i SECTION it S: 11YI11 DET:III,S ocEq ;+ELL wf,Ln^f_M1fv6l a Wr1LnNp OEil vY[t,iW rAnA G'InFP4Y wetFtow NAxry oFPm -+z• inRERaV mEFEIt Tp TPBL£112PpIVaLUIE nfrEN Ta TABLE ACfD11REMErR81 r.2 PUR VJLIME �, �H nEdrNEMBJ91 � Q Low HloH rsoW • • -Ptov PATH aJO PooLoepue-rnY ''�O°Gt1N° POHn AEMTIW aa3EA TO TnaLE n42rOn LlNtr A aEFEH TOT•mE tE• TIC aeNGH La R61XYnFA1ErJTQ [OR L+ AF.p la nEGUr6MFNT5) PrPE,V t1ENrN LVETYMQMTq BFa:H PLANMEW Hone nETm TO Tnm.c,ea Nm oesxoH wEc rot ,a oorrenatcre�wEn.wo raxTlw s ran Lr AHo Lz sws.¢ Nm suwnoe oEPm a+rtemA wwETwro cEu ovEnFcow TO wE*Porto Hwrn.� /(�\ CrMrdJELPWTECIIW-`� � ��-�L 1� at H,' geFgiTb 9ET/JNB FQi I, N,e, L2 KetMK PUgL VJLVME 4Yp �'fH NIo rV Nip CHNJFa1 rRJTECTiH 3rIXi4UE 7E1Ri1a PROFILE (WITHOUT UPPER SHELF WETLAND) Figure 1/.1. Wet Porltl Design Schematics SCOTT/R. Cb'LLINS'ZI No. 35791 1- pow 7/29/22 1 s'SlnarnT E�O N H rj Q 0) � N nCI L9 L9 2: 113Ul 0 U) Of � 1 1 1 Zti eCC• M G � M Q N z M N W C:) Q N UCL ) W N z J. Q - _ J Z W W J 0 J Lli- v / r `J O Z j " U W W Q (n 2: Y LLU Q r = LLJ I ZLw LIJ w '+ I O c cn W � LNU JQ � � z O CJ N a W J w O w Q_ JOB NO.� 182154 AS SHOWN SHEET N0. 17 SYSstN srP•,w Or1,1ePYea urea 1 / Nn.w s are.w .m in Na is i r vies r • Nt•to / M-nil NFm z NY1R l Na>u • an.au a STORMWATER MANAGEMENT EACILITY 'D' DETAIL, SCALE 1"=m' CONTRACTOR SHALL CALL THE COUNTY INSPECTOR& ENGINEERING DEPARTMENT 24-HOURS BEFORE ANY ANTICIPATED CONSTRUCTION ACTIVITIES FOR THE BMPs. THIS IS INCLUSIVE OF WHEN THE UNDERGROUND DETENTION SYSTEM SUBGRADE IS READY FOR PIPE CONSTRUCTION, BUT BEFORE STONE BEDDING IS INSTALLED. / I / PPOP�ERTY LINE, T / L i 100-YR FLOODPLAIN / o I / / PROPOSED 42' LONG FLAT 'D'. LS TO HAVE A 12"DEEP / 6" WIDE RIGID LIP. LS TO / CL. Al RIPRAP LINING AND / VDOT CL. Al RIPRAP LINE / DOWNSTREAM FIR, / EXTENDING TO THE EXIS" RIPRAP TO INCLUI UNDERLAYMENTS & BE A I P)20POSED VARIABLE WIDTH SWM & ACCESS ESMT. T I / PROPOSED SWM FACILITY'D'. SEE THIS - SHEET & SHEET 20 FOR DETAILS. \ v C0 / ) \ 0120" INV. 695.53' RESTRICTIVE STEEL WEIR PLATE, AT LOW POINT, TO DRAIN THE SYSTEM. SEE DETAIL ON THIS SHEET. /PROPOSED STIR. D 101, AN ELEVATED 018" HIGH -FLOW BYPASS OUTFALL CARRYING LARGER STORM EVENTS\� g8 - - SEE IS SHEET FOR IL _ SCA1 IED PROFILES OF -THVSWMFACILITY, TYP. K� iL SPREAD R NGEPOOL& \ E, J 0120" INV. 695.74'` --� 71 N u 7y Q \ \ \ \V0 �� \\ \ \ PROPOSED ACCESS MH w/ STAIRS FOR INSPECTION& 6.0b LF MAINTENANCE TYP. ACCESS MH TO BE LOCATED UPSTREAM UDE A VDOT e IPED 3'(MIN) ABANKMENT '\ g1R �♦ O & DOWNSTREAM FROM RESTRICTIVE WEIR PLATE AND NEAR THE HIGH END OF THE SYSTEM, AS SHOWN. 0120" INV. 69587' / 10120" INNV. 695�81' ff _ 0120" INV. 69560' 1 0120" INV 695 66' a 26 00 LF '0 0 5% ,. , 0I2 � �. 95.50' o� � I � , !, o _ PROPOSED ROADWAY & SIDEWLKTOA STIR D-102 I PROVIDEACCESS TO SWIM FACILITY. // PROPOSED STIR. D io7, A LOWER 015 LOW FLOW OUTFALL CARRYING THE TREATMENT VOLUME FLOW &SMALLER STORM EVENTS (6.88 LF OF 015' HDPE Qa 3.78%, II 695 47, 10 695.z1) 9 -HE RIGID LIP-' i' �_ / / / GRADE. ALL,'-� LTER FABRIC OF 18" DEEP. 1 +09 D-1Q5 694.3 U- I U : NI Hx. �2 SLOPE= 2% 664.2 / PROPOSED FLAT VDOT CIL Al RIPRAP LINED , OUTLET PROTECTION WITH FILTER FABRIC UNDERLAYMENT (MIN. L=g', W1=6', W2=6', D=i8") / 0+00 A693.95 / 0-35': MAX. / o SLOPE- 3% \ 693.95 / / PROPOSED 35'Lx42'W VEGETATED FI LTER \ /6 STRIP. FILTER STRIP TO BE UNIFORMLY i GRADED TO THE SLOPES SHOWN TO. ENSURE SHEET FLOW BELOW THE LEVEL SPR EADER. CONTRACTOR TO TI E BACK GRADES AT 6:1&PREVENT SOIL / COMPACTION BY HEAVY EQUIVALENT WITHIN THE LIMITS OFTHE FILTER STRIP. SEE SHEET zo FOR ADDITIONAL FILTER STRIP DETAILS & DESIGN REQUIREMENTS., / PROPOSED 08" LOW -FLOW OUTFALL CARRYING THE TREATMENT VOLUME FLOW TO LEVEL SPREADER'D' rll (56.90 LF OF 08' HDPE @ o.5o%, 11=695.11, 10=694 83) O PROPOSED VDOT STD. CLASS AI RIPRAP LINED OUTLET PROTECTION WITH FILTER FABRIC (UNDERLAYMENT L=8' W1=3', Wz=g', D=i8") II / 594.83- BEGINNING Ir� Z. k / `� + OF LEVEL SPREADER ` - ✓ / \\ "`1»- 693.6- BOTTOM OF �1 III 7 / LEVEL SPREADER _, 694.6- TOP OF ` /W TREAMII / LEVEL SPREADER e F E E PROPOSED 0120" CMP UNDER DETENTION SYSTEM AT o.5o% (P 18" OF COVER REQUIR 10-yr PEAK WSE= 2-yr PEAK WSE= 1-yr PEAK WSE= PROPOSED STIR. C-iog, A HIGH -FLOW BYPASS OL LARGER STORM EVENT'. HOPE Qe 20.34%, II= 710 705 700 PROP( HIGH W/VD HE 695 690 PROPOS OUTF) FLOW & SIN PROP( THETREA 745 745 740 740 XISTING GRADE 735 735 \ \ PROPOSED ;ROUND GRAD IINIMUM D,TYP.) 730 73O _'PROPOSIE DWEIR LATE SE THIS SHEET &SHEETz FOR DIET Ad LS. 729.98 726.78 725.95 VDOT 4 Ha 725 RIM=72 .zo 725 \ ROPOS D FLAT DOT CL.Al RIPRAP J ELEVATED 018" \ LINED UTLET P OTECTI N WITH TFALLCARRYING \� STR C-loz FILTER FABRIC NDERLA MENT (31.51 LF OF 018" VD T MH-1 \ (L=28', W1=4.5', 2=12 7', =18") 725.92, 10=719.51) RIM 7zyao \ 720 _ 719.42 \ 719 40 Q -D STIR. C-iol, A LOWER 018" LOW -FLOW ,LL CARRYING THE TREATMENT VOLUME IALLER STORM EVENTS (33.4o LF OF 018" HDPE del 2.66%, 11=719.40, 10=718.51) 715 SED STIR. C-107, A 08" LOW -FLOW OUTFALL CARRYING / -MENT VOLUME FLOW TO LEVEL SPREADER'C' (z.go LF \ OF 08" HDPE Qe 2.1%, 11=718.41, 10=718.35) \ PROPOSED STIR] C-lo3,A 018"HI H-FLOW [-j BROP OUTFA L (59 72-103d FOF 018' HDPE Qa 018"HIGH-FL WBYPA S 71 0 4 49% 1=719.41, 0=716.67 OUTF LL WITH -1 710 8.62LFOFH E 04.qVDOT PE, > 1 11=716.57, =712.20) J J c0 N L 0) 0) r7 N Ncl� N N 0is r� "� r r" r" N r r W ILL PROFILE SCALES 1"=5' (V) 1"=50'(H) STIR. D-Jos. AN 0+50 1+00 1+50 2+00 2+50 3+00 SWM FACILITY C SECTION VEGETATED FILTER STRIP & LEVEL SPREADER REQUIREMENTS MAINTENANCE INSPECTIONS: ANNUAL INSPECTIONS SHALL BE CONDUCTED IN THE NON -GROWING SEASON DURING THE FALLAND WINTER MONTHS. INSPECTIONS SHALL TRIGGER MAINTENANCE OPERATIONS, AS REQUIRED. MAINTENANCE OPERATIONS MAY INCLUDE, BUT IS NOT LIMITED TO, SEDIMENT REMOVAL, PERIODIC MOWING, REPAIR OF THE LEVEL SPREADER AND ENSURING A DENSE, HEALTHY VEGETATED GROUNDCOVER. MOWING SHALL BE COMPLETED AT LEASTTWICE AYEAR TO PREVENT FURTHER WOODY GROWTH AND SPOT RE -VEGETATION OF THE FILTER STRIP IS REQUIRED IN ORDER TO MAINTAIN Ago% MINIMUM COVERAGE RATE. THE CONTRACTOR SHALL CONDUCT THE INSPECTIONS FOLLOWING THE FIRST YEAR THE PROJECT IS COMPLETED, AND THE OWNER SHALL CONDUCT THE INSPECTIONS THEREAFTER. INSPECTIONS SHALL INCLUDE THE FOLLOWING ATA MINIMUM: 1. ENSURE FLOW PATHS ARE NOT SHORT-CIRCUITED IN THE LEVEL SPREADER AND THROUGH THE VEGETATED FILTER STRIP. z. ENSURE DEBRIS AND SEDIMENT HAS NOTACCUMULATED. 3. CHECK FOR SCOUR AND EROSION WITHIN THE LEVEL SPREADER SYSTEM AND FILTER STRIP. 4. CHECK FOR FOOT OR VEHICULAR TRAFFIC DAMAGE IN THE STONE. S. ENSURE VEGETATIVE DENSITY MEETS OR EXCEEDS go%OFTHE FILTER STRIPAREA. IN THE EVENT MAINTENANCE 15 REQUIRED DURING THE ABOVE NOTED INSPECTIONS, CORRECTIVE MEASURES SHALL BE COMPLETED IMMEDIATELY. STIR. D-io3, A Oi8" HI H-FLO(A JTFA L(118.6g LFOF01 "HDPE 87%, 11=695.78, 10=692.3 ) STIR. D-1 4 VDOT M a r.� SEWE VDOTC AIRIPR PLINEE rinm %A/ITW FII TF FGRCIf PROPOSED STIR. D-1oi, AN ELEVATED 018" HIGH -FLOW OUTFALL CARRYING LARGER STORM EVENTS (6.6o LF OF 018" HDPE Cal g.og%, 11=703.50, 10=702.90) PROPOSED WEIR PLATE, SEETHIS SHEET & SHEET zo FOR DETAILS. 705 PROPOSED SWIM FACILITY -D', A 0120" CMP UNDERGROUND DETENTION SYSTEM La10.50%. 10-yr PEAK WSE=705.28 2-yr PEAK WSE=704.16 1-yr PEAK WSE=703.48 PROPOSED STIR. D-107, A LOWER Oi5" LOW -FLOW OUTFALL CARRYING THE TREATMENT VOLUME FLOW & SMALLER STORM EVENTS 6.88 LF OF 01 "HDPE . 8% 11=6 10=6 .21 ( 5 �37 9547, 95 ) PROPOSED 08" LOW -FLOW OUTFALL CARRYING THE TREATMENT VOLUME FLOW TO LEVEL SPREADER'D' (56.90 LF OF 08" HDPE @ o.5o%, 11=695.11, 10=694.83) UNDERLAYMEN (MIN. L=g', Wi=6' W2=6', D=iB") LLI J O O� O r- r'J 00 DO 00 _J W W L o6 00 O O wL� L LD(0 LD co LD LO PROFILE SCALES 1"=5' (V) 1"-50' (H) 0+50 1+00 1+50 2+00 2+50 2+75 SWM FACILITY D SECTION NOTE: WEIR PLATE TO BE SECURELY BOLTED, OR SIMILARLY FASTENED, TO THE DETENTION SYSTEM. 0120" WEIR PLATE'C' DETAIL SCALE:i"=5' 9.54' ELEV OVERFLOW WEIR IS HYDRAULICALLY EQUIVALENTTO AN ORIFICE WITH AN APPROX. DIAMETER OF 026.53 ELEV INSTALL TRASH RACKS ON ALL ORIFICES, TYP. SEE THIS SHEET REINFORCED 12 GA. FOR DETAIL, OR EQUIVALENT. STEEL PLATE ELEV.=719.42' MANUFACTURE / INSTALL ONE (1) 05" LOW -FLOW ORIFICE IN THE STEEL WEIR PLATE ATTHE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION 719.42') MI]EDINUMI]I] I]EI]EDI]I00 SI]SI]EM IMMS??I]0010I] 0I]DESI] 001FI Ao?70oEooloEMEooso ?? MHE MMMMAMMM SHAMME MESPMIMSIMME ME! ??MM MMAMIM MMM MMMEMEM MMMEM MHESE PMIMSM IMM MHE MMM??AMMM SHAMMEMIM ??MIMEMSIMMS M MHE MIEM AMM MMMI?? MHE DESIMM EM MMAMMMAMIAMME ??IMM MHE Primn© M MEMM M MHE APPIMM MEM ?? M S?? M MMIM M PMAM S MM AMM M EMAIMIM SIDE ID ?? MMAMIM M M M AMM MMM SHAMME MMMMMIMAMEM M IDH MMHEM PAMMIESM M OHE MMMMAMMM IS IMESPMMSIMI?E ?? M MEMMMAMAMM M ISPMSAMM IM ??ASH AMM IMEMMIS M IMHIIM MHE OMIMS MIM MHE MMIMEMMMIMMIMM MEMEMMIMM SMSIMEM MM AMAIMMA5ISM 0A0107? 000S IMINA000 IM? M. M. M EMMIMM M IMM MEMEMMIMM SIMSMEMS SHAM IM M M DE AMMIMAMEM AHEM MHE MIMM ? ? IMM MIM IM MMAIM AM E AMEAS AME MM MPMEMEM SMAMIMMEMMIMEMHE MMAMIMM MIMMHE MMMEMMMMMMM MEMEMMIMIM SMSEMEM DI MBE MSEM AS SEMIMEMM ??AP MM MASIM IMMMIMM MHE MIMM ??MMMIMM PHASEMHE MIMMMAM??M SHAMME® AMEM??MEMME AMM MEMMAME OHE SEHIMEDD MMM??MMMEMIME ?? HHE MESIMM MIMEMSIMMS MEMMIMEM ?? IM MHE OM M EMMMM M M M MEMEMMIMM SMSMEMM MM MHE MMMMAMMM SHAMASSEMMIZE IMMMSMMIMMIMM MAMEMIAMS MMMLIMEMMAMIMM SMME MHEM MEEM MESIMM SPEMIMIMAMIMMS AMM AME PMEPAMEM AIM SMAMIMM AMEAS IM HEM PMSSIMMEM M MHE MIMMMAMMM SHAMAMHEME M MHE MAMMMAMMIMEMM9MIMIMM M MEMM IMEMEMIMS ARM MHE MEMMIMEMEMMS SHIMM IM MM MHIS P? ? M 0AMIM ? MAI00E0A00E0 MAIMMEMAIMME MMMHE MMMEMMMMMMM MEMEMMIMM SMSOEMMEIMIS IMMIMEM MM AIMMMAMIMSPEMMIMMS MHAM EMAMAME MHE MMMMIMIMIM AMM PEM??MMAMME MMMHE? ?IO? ??MMIMM MHESE IMSPE??IMMS MHE MMM IMM MASMS SHAMME PEMM MM EM MMMHE OM M MAMM M IM MHE MIMSO MEAM M MM M IMM IM SMAMAMIM MMAM M MHE MM M EM MHEMEAMEMM 1. EMSMME SEMIMEMM AMMMMOMAMIMM MM ES MMM MMMMM M IMHIM MHE PIPE SMSMEMM ?? ??? ? ? ?? ?? ? ?? ? ? ? ?? ? ? ? ? 2. ID SPEIMU UHE UU U U IUIU U U U Sm UMU AOEIM IIM L?EMS m MHE PIPE SUSUEM M E MAUEU IAIM IMAMAU EU 3. IMSPEMMMHE PIPE SMSEMEM MM EMIMEMME MM SPAMMMM IMM MAIMMEEMEMEAMAMEMMMIMMSIMM MM MMHEM MAIMMESIM 4. IMSPEMOMMMAMMHAMMEM45U?MM EMBSIOMMMBEMOMMIMM??IPMAP MIS ? ?EMEMMIM MMMMMMOM MHMEMB 5. IMSPEMMMMMMIMIMM IMM ????ASH IMAMS MM EMIMEMME MMMMMMIMMMEAMAMEMEMMIS AMMMMM? ?IMM MM MMHEM MAIMMESM 6. IMSPEMM MAIMMEMAMME AMMESS M EMSMME IM IS MEE MIMM MMIMMMEME? ?IMIMM 7. IM SPEMM OH E ABBESS MAR HM MES M EMSMME MHEM IMAM ME M PEM EM AMM M PEMAMEM M 8. MEPAIM AMM MEPMAME AS MEMESSAM?? oAolom IosPEool000 MMMIPINIE IMSPEMMIMMS AME MMIMIMAM?? EMSMME MHE MMMEMMMMMMM MEMEMMIMM SMSMEMl PMM PEMM MIMM ??MMMEMMEMAMSE MHE MIMIMM MMMHE IMSMAMAMIMM IS IMIMMAMEM IMMMHE MMM??AMMM??HE MMM??AMMM SHAMME MESPMMSIMIMIE MM MMMMAMMIMM MHE EMMIM EEM AMM IMSPEM??M PMIMMM IMS? ?? ?IMMMMM??IPIMIE SIME ? ? ? ?? ? ? ? ?? ? ? ? ? ? ? ?? ???? ? ? ?? ? ? IMISIUS AUIM IUSPEOUIIMUS AME UEUU IUEIM M OE SIMHEUIMMEIM IMU MHE UMIMmAMMUm IUH MHE EMU IU EEU AIMM IMSPEM?? M??MMIMM MHE ?? ??? M IMM SHAMES MMMHE MMMEMMMMMMIM MEMEMMIMM S? ?EMPS IMMMS??MMIMIMM MM MESSM ?? POEII8MM511 MMIMIMM MEEMIMM ?? ? ? ? ? ? ? ?? ?? ? ? ?? ? ? ? ? ? ?? ? UU IU IUTAUSIUE PUEPAIMAUIIMU MUUMIM IUU IUSUl1mAUlMIM IMU PIMU MEUIM EMS 0IM IMMU �U M EMMAIMAMIMMMMAMIMM MEM9M91MMEMIMMIMAMEr?EMAMIMMSM ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? IMUIM HEM UHE UEUEUIMIUM PIPE SE UMIMAOE IS UEAIMUMIM PIPE UMIMSMUIMMIIMUM000EM IME 5M7ME0EUMIIMM IS IM ? ?? IMM M AMEMSMMEMEMMIMM IS PMAMEM AMM IMMMPAMIMEMMMMPMIMM??PIPE IMSMALMAMMMM M AMMHE MIME MMMHE PIPE IMSMAMAIMIMIMM ?? AMEM PIPE IMSMAMRAEMIMMMMIMPIMIMMIM PMAMIMM MAIMMMIMM MIMMMEMMHESMSMEMM ??MIMAMIMSPEMIMIM®EMEMPA PMIMMHOSIM??MMAMIOMAMME ? ?MEM 0120" WEIR PLATE'D' DETAIL NOTE: SCALE:i"=5' WEIR PLATETO BE SECURELY BOLTED, OR SIMILARLY FASTENED, TO THE DETENTION SYSTEM. 8.00' OVERFLOW WEIR IS HYDRAULICALLY EQUIVALENTTO AN ORIFICE WITH AN APPROX. DIAMETER OF 022.64" ELEV.=705.50' (TOP OF PIPE'. ELEV INSTALL TRASH RACKS ON ALL ORIFICES, TYP. SEE THIS SHEET REINFORCED 12 GA. FOR DETAIL, OR EQUIVALENT. STEEL PLATE ELEV.=695.5o' (BOTTOM OF PI MANUFACTURE / INSTALL ONE (1) 02.25" LOW -FLOW ORIFICE IN THE STEEL WEIR PLATE AT THE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION 695.5o) SCOTT/R. Cb'L] No. 35791 p 7/29/22 Z z J O Q Cap_ U m Ln U, w J z O F1' W DE ce L z z Luti M M Q N m Lu 1 cy) N Q N , ^ CN z 1.1 Q Q a J > J w LLJ J 0 J CC Lu G Lu p > Lu J < a Q z (w � Lu Q OC ul c/) Lu LLJ ' ZLu N Lu O U) LU J cC cn Lu Luv , ^ J� 1 < z OC) Q (] V / u < Lu H u Lu a N JOB NO. 182154 SCALE AS SHOWN SHEET NO. 10 I7 ED PEN IN I7 I]I] I7 SININI] I]DII] I7 IN IN I]ESI] ? ?IMI ? P? ?MIMM SPEDIMIDADIDOSD MM MHE MMM??AM??M SHAM ESMARMSH ADO MAIMDAIM AM EME? ?IDE MMMEDAME ID MHE PMMM ADD IMSMM??EMM DD MHE MMMMAMMM SHAMADSD IMSMAMMHEM E?? ?M SHE??ARM ARM ADID DEDDH PPAMMIMMSMASMEMMIMEMMAMD MSEMMWI Era DDIDH SDIDID MHESE AMEASM PMM MD ME HE ??HMMMMM MH AM D MMMMDEME??PMEMM MM PRAMIN SEPEWIMM SHAM PDD MM ME MIMEMSE M IMMHE AMM M AMEMMM MMSE M IMHIM MHE SMCEMM AMEMA EM ?M? ?MAMIMMEMMH AMM IMD OREMSM mMIMOMMMER EOAOIOIM MAPMOMIME P44OMEO 0OA®DED D70MCI ❑ ❑IMH IO mMEEMMOOHEmEOOOHE EMMAMMMEM0V MDO IMH IM®SEED MRM MHE PMIMMI PAM SPIMO AM SWIM M?? 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MMEMM ISSM E M M MH E AMEMIMAM SDAD D ADP W 0 M ❑MSEIMO Sm IMm PMOMSHEIM MM OHE AMEMIMAM A55M MIAMIO M MOM ❑MSEDMMEM ®m SW EEM?7] M MSD IDE ASH 10 M M 0 W ❑ Moo M MHE MCI M??AMMM SHAM MEMIM AM M IMEM SIM M S IM MHE MI EM AMM MMMIM MHE MESIMM EM MMAMM MAMIAM ME MM M MHE PMAMM MM MHE PAMMSMAPEMMM??ADWM IS MESMMSIML?EMM MEMIMIMM MHE??MAMIMM M M AM MMMSIMEMMIMMIESMACH MISS MMIM???. ? ? ??M IMEMRE AMM EM? ?ARIMMM MM MEMEM M MHE APPMM M EM MMMSCOMMMICIM PMAM S W M AMM M EO? AI? ? SIME IMM MMAMIM MM M11 AMM MMM SH ?? ME MMM. MMIMAMEM M IMH MMHEM PAMMIESM MMPPAMMSEd I??ME PMEPAMEM??M SHIPMEMM IM A MAMMEM MHAM M I??MMM MAMSE MAMAME M MHE MAMM??MM ??MAMMHESMSMEMSMM MMEMAM SHAPE MMMHE SWIMW WMDAIMER MMMM M PCAMMS M. I??ME WARSPMMMEM IM MHE WMMAIM EMS IM M HIMH MHEM HARE MEEM MMMM MM ?? ? ?? ? ? ? ? ? ? ?? ? ? ? ? ?? ? MMMM ? ? ? ? MM Am PWM ❑ MAREMIAM?ZOIM LE55 O MHEMM ISE SPEIMIMIEM SHAM ME IM ❑ IMM MMM MMAM MH EM ARM HARE A ❑I0 M IMM R 5 MM R ❑ SCISREMR PDAR❑ MADEDIAD SHAMME HEAMHMHIMMMMMSMARM MEE MM M MEMEM.MS??EM ???ISEASESMIMSEMM PESM EMIESPIAMM AMMIAMS MM IMMESMAMIMI7M ??PPAMM MAMmIARSHAM 0E mESH®EE mM M WAMSPWL❑ SHMOM MM MISIMGE ❑ I® PMARMS REEMED ❑M HEAMHM ❑ IM?? ME RECESSED❑ M? ? ?? MM M MAIR EM SM MM SHAM HAME MEEM MM PAMAEEM IM A MM M MAIM EM COMM EMM MM H MEE MHE MMMM SMSMEM M HARE MEMEM PEM SM ?? IMIEM MOO W HM W IRS SM IM MM M MAIM EM SW MR M IMH PM M P?? R EM E?? PER MM M M SMSMEMS M IMM M M M ME AMMEPMEMM WORMAEMS MMM IRSMAMMEM MM MHE MAMMMAMMIMAMMM SIME SHAMME SWM?EM AMM MMMEMMEM IMM MHE MMMMAIMEMMMMRSIME SMMAME AREASR IW ME SHAMEM ARM PWMEMMEM MMM MHE M IMM AMM SMMM P? ?MS SMMEM MM SIME SHAMME PUMMEMEM ??M M AMMMMMIMM AM AMMIMES MM MM19ENIMIM MHE MAWS MM MRMMS M IMH MM ISM SAM RM ? ? EMMMMPAP?? MRM MHIPSMSHDEMMEM MAM??PEAM MMS??RMRHEM SIMI? ?MMMHIRR MAREMIAM MMMHE MM MEN MESEMMES MHE MIMHR?? SMMSMI??MEP? ?M MAMEMIAM??PEMSIME AMMMM MMAMMI? ?AMM SMM.SMI??MIMMS MMSM ME APPMMMEM MR MHE MESIMM ERM MMWIMMM MEW AM®SMMEMMS MAIM ME M EMESSAMMMM E?? SIME MMMMIMIRMS[EMMMM?? ??AMM MMIMM RMM??MMIMMAMM AMMSMMEMMS MMSM ME APPMM MEM MM MHE MESIMM EMM MMMEM PMUMIMM SHAMM??MMM HEM MHESMIMISWMMEMM M"MACE M MAMEMIAM SHAM RE PCAMEM IM EMISMIMR SMIMM IMH EAMH P? ?MIMM PIM E??AMAMEM??ASIMESMMMIEMMM??MMAIM MHEEMMIMEMMRM MAM R ❑ DM ❑ 16 MASSm IRHD ❑ ❑ DOAMPIP RI 00 ❑ R Sm WM MPMHE MMM??AMMM SHAM MAIMMAIM AMMEMMMAPEMMAMMEAMAW MAMEAMM MEPMAIMEMEMMM AMMAIM??MDAM ? ?MIMMMMHEPERIMM MM >> DAME AM❑ MEPMIMEMEO M SHAmm MEO1M AEM ID SPEMMIM ❑ AM M APPMD RAR❑ � MH E OM M PL?EIME IMM SOA@A�I❑ ❑ 0 RJ Am PR4M 0.5 AO ❑ MMM 01IM ❑ E M ❑ MMEMAPEMMAEMEAMM MPMHEMDM??AMMM ISMESPIMDSIMCEMMMEMMMAMAMM M ISPM SAMMM MASH AMM REMMISM IMHIM MHEMMIMSMMMHE ? ?MIMM MM AMAI??MASISM WIMHEMMM??AM??MM IMMMMMEMESPMRSIMMMM PMAMM MAMEMIARMHAM HAS MEEM MAMAMEMMMMAMMAMSM??IME??MMRHEMAMMIMIMIES MEMMM MHE MMMMAMW MM RMMMMM DAOIMIMM DDOS??DDDI000 MM MHEMMMMAM??MSH ??MSEMHEM EMPMMM ASAM EMS WM??MRS??MM??MEMIMSHMM R IM MHISMAMMERMR MHEAPPMMREM ESMPMAR5MIM APPMMAMPEMHEM EMPMMM SHA?? SEMME ASA SEM IM EMM MASIM MMMIMM PMML?EMDDMIMSMMMMIMMMIMDHISISDMME??HEMS??MESH ??DEMASEM MM MHE MMMES??IMMEMMSIMIRM RMGEGEMMSIMM ARM SEMIMEMMMMMMMMREMMIREMERMMSM AREMMMAMM??EAMMEMMMEMRIMEMEMOR IMSMAM4MIMM RMMHE PEMMAM EM R MISEM SHAM ME IM IMIAMEM MRMIMM MHERMMSMMMMIDM PHASEMAMM MESIMM EPEMARIMDSSHAMMESEMM IMH MIMAMMCEAMMMMRMRHE SEMIMEMMIMASIR AMM MRMEMSIMM ?? MHE PRSMZMMSMMMMIMR M EMPMMM IM MIMMMHE MM? ? M EPEMAMIMM MMMHE M ERPMMM SHAMMEMM EMMHAM MHEMM?? M EGEMAMIMM MM MHE MEM PR MARM SEM IMEM M MASIMMAPPMM MIAME MM MEMM MESSHAM ME IMPGEMEMMEM M PM.EMEMMMISMHAMMEMM EIMIMM AMEMSM HEM MHEMASIM ISMEIMM MMMMEMMEM IMM AM>. ERPMMRM MMM ER PR M RS SHAM❑ ❑m LE MR ❑SMM OMEN AmEM MH E RM R MIRM MIR M ❑MAIM AR E AMEA W MHE PM ❑ M IS MR MPREREM SMAMIODEMOIM LH E PRO PO SEM PO M ❑ SIDE 0 IMM RE M SEM AS A SED I MEM M mAP 0 R MASIM IMRMIM P MH E RR M SmRMIM1M ❑ PHASEWH E RR M MADM R SHAm R E® AOEMO MMEMMEAMM IMECMMAMERHESEMIMEMMMMM??MM? ?IM??M RESIMM MIMEMSIMMS ??EIMRHERMIMIRAMSIMEMMM ??MMMIMR ISMMMPPEDEM MMMHEMMMMAM??ESHAMASSEMML?EMMM ??MMMIMM MAMEMIAMiIAMMiIMEMMAMIMM SDMEDHEMMEEMMESIMM SPEMIMIMAMIMDSADM AMEPMEPAMEM AM SRAM IMM AREAS HEM PM SSIMPEM m MHE MM❑ WAMW R SHAIDMl?EAR AM SmIP MHE PMM GEM AREA IMM REM❑ IOEO m OHE ❑ESIMEM 5MM®MAM EM MM MHE MMM??AMMM SHAM IM SMACH EM S MM M??M IS PMIM M?? IMM M SMM MMIM M MICE MM M IM M MEMPM MAMM M EM AMEMIM M M EMIMES AM M SM MMM AMEM M IM EMSIM M PMAMMIMESMAMAAMEAS SM MMM M M M IMM M MH E PM RR MHAM AME SRAM EM M M M EM M M EM MMMIM M MM M SWMMMIM M MM SM ME PM MEN M IMH W MM DRASSM AMIRE MNAMMIMM SIM M M MH EM APPMM M EM M EMHM I?]S M M SM IM SMAMIM? ?ISMS MM MHE MMM??AMMM SHAMAMSR EMMAMAME MH E MM ME WEMMH AM M IM SMACH MH E SPIM?? AM PIPEM MM MHE MISEM AMR APPMIMAMCE RM?? ? M SWMM?? MES SHAMME IMSMAM?EMCIAMM MHE MMMMAM?? M SHAM EMSMME RHE ?? P IMMECEM MMMHE IMME18 MIM M EIM ISMMRSMOM??EM PEMEMAMMHEMESIMM EPEDAMIMMM MMMHEMMRMAMMMSH ??MMM??MMMRHEEMRAMMMEMMAMMAG]MIMMEMMAMMEMMSIM? ?? MRMM MH M?? ??M M PAMMIM M SHAM RE MM MPD:MEM IMMMSMIMHAPPMMPIMIADEERMIPMEMM7HEMMMAMMMSHAMAMAEHEIMEMMHE ? ?MMEMSPEMIMIMARIMMSMM??MEMIEE ?PE?? MEW M M Table 14.4. Clay Liner Speciricarions Property Test Method UnR Specification Permeability ASTM D-2434 Cm/sec 1 x 10 Plasacity Index of Clay ASTM D4231424 % Not less than 15 Liquid Limit of Clay ASTM D-2216 % Not less than 30 Clay Particles Passing ASTM D-422 % Not less than 30 Clay Compaction ASTM D-2216 % 95% of standard proctor density D-Ource: virgmla blormwaier Management Han0000a (19w) MM EWAMAMIMD ARM MMAM IMM M MHE APPMM PMIAME EPEMARIMMS ARM R ESIMEM??MMMMS SH ??RE AMHIEMEM MOM MHE MM??? M ARM SIM E SM PES MMMHE PMMMM IMC®HE EMEMM EMMM SPERM AM SHAMME RMMS??MMMEM IM MMM M HEME PM SSIM1?E??MIM SMMMMMADW SMARIAMEM SR IMSM MMMHE ❑ ❑ MMEM PI PES01M MM R IIM ❑ ❑R ❑ ❑ SW EAM OIP®AP APIMM R PRIM OE0MI0 M aSHAM ME IMM SIMAM?ELO MMMOPI7 SEM 5M IGb SHAMME SOAMIOOEM ❑IMH MEMPM RAMR SEER MIMM MES APPMD PRIAIME MEN MHE PMMM MM MEDMAmAMEAS AMR ❑E MHE MMMMAM PIMMMEGEMAMIMR SH ??ME PEMMAMEM? ?5? ?IMMEM MM H??MMSEEMIMM MM SEEMIMM MMEM SCRAM WMHE PMMM MM??ED ADEASHAMME P? ?MEM D IMH AMEMEMAMIME MMMMRD MMMEM ARM MHE MMM??AMMM SH ??MHEM IRS? ?MHE APPMMPMIAME MASIM MARDSMAPIMD ID AMMMMMAMME M IMH DHE APPMMMEM P? ? SM M ? ??MMD ??MMMIMM SHAMAMHEME W MHE MIRMIM IA MEIN MSIMMMIMSMMMMIMM MMPDI?EAMIMMHRMSE MEMMIMEMBRIMS SEM??MMH IM MESIMM SPEMIMIMAMIMM DD MMEM ??? DAMIMIMM MAIM MEINADDEM MAIMMEMAMME MMMHE P EM POMDGSLOISMMIMEM MRAMMMAMIMSPEMMIMMSMHAM EM ??AMEDHEMMMMIMIMM AMM PEMMMMARDE MMMHE PMMMM MMMIMM MHESE IM SPEMMIMMS MHE MMOOR IRD MASMS SHAMME PEMMOMMEM MM MHE MIMM??AM??M ICE MHE MIMSR MEAM M PM M IMM IMSMACMAMIMMMAMM MHE MD RED RHEME ??EMM 1. MEASMMESEMIMEMMARMRMIM? ?IMDCEMEr?SIMMHEMDED ?? MIN MMRIC©MMHEMMMD IMHMMM E?? MS? ?EESAMM SHRMMS PMAMMEMMASAPPCIMARCEMEMMMD MHESPEMIESAMM MHEIMAPPMMRIMAMEMMMEMAMEM ADIMMMME MHE PMESEMME MM AMM IMMASIME PPADM SPEIMIESMAS APPMMAMCED 2. IRSPEMM MHE MRMEE IMIMM DM SW MMM AREM IMPERSM MHE PMMM MM MAIMEDIARMAMAD EMERM SIMM RM MCEMED?? ??ISSM 3. IRSPEMM MHE MAMMS MD M PSMEAM AMM IMM M DSMEAM RHARD EMS MM EMIMEMME IMM SM MM HIMCE? ?IMADMMMMMM SMMMMM AMEASIMMMMM M MDR DH??RIMDaD ERM SIDR RHAIM MAM IMRRERMIME EMMARDMEMIMIRREIMMI ?? 4. IRSPEMM PMMM RM ? ? RHARR EM??DERIM SIMR??DMEMRIM WIMR??IPCi➢AP IMISP? ?EMER ?? RMDM IMIMDR DHMEWM 5. IM SPEMIM MM MM IMIIMD M M PMIM MIPAM SPI? ? AM ARM MISEM MMM EMIMEMME MEN SPAMIM MM IMM RAI?? DE R AMAM EMM MMM SIM M MCI MMHEM CAI?? MESS 6. IRSPEMM WMRIMIPM DMAMWASH MAMMS[MEE CT?]ASHMMAMM MISEDS MM EMIMEMME DMMWMMIRM?? AMAMEWEMDIS ARMM MM? ?IMM MM MMHEM CAI?? RESM 7. IRSPEMM MAIMMEMARME ASSESS M EMSMME ID IS MEE MMM MMMM MEN EVAICEMMMIM MHEMMW SEE M HEMHER M ??ESMMAM HCE PES AMP MMMS PAP PE M PEM EM ARM P PEMAMEMM 8. IRSPEMM IMMEMMAMAMM EMMEMMAMSIM E S?? PES MMMHE MMM MM EMIMERME MM SPARSE PEM EMMIME MMMEMMEMM SIMMMD SIMMPIMMCARM MARE M EEP Ell MEPAIMS IMMEM IAME? ? 9. PEPAIM AMM ME ? ? E AS M EMESSAMM 10.PLOEASE SEE MHE MAMPE MEMR??IMAMMIRIPPAPMAIMMEMAMPEMEASPPESAPPPEAMPPEMPPPHPSEPPMPEPAPPPEP Table 14.6. Typical Wet Pond Maintenance Tasks and Frequency Maintenance Hems Frequency • Mowing -tWICe a year Quarterly or after major storms • Remove debris and blockages (>t inch of rainfal0 • Repair undercut, eroded, and bare soil areas • Movnng Twice a year • Shoreline cleanup W remove trash, debris and fba[ables • A full maintenance inspection Annually • Open up the user to access and rest the valves • Repair broken methanical Components, rf needed One time -ding urthe • Pond buffer and aquatic bench reinforcement plantings SerArltl year following construction • Foreba Sediment Removal Every 5 to 7 years • Repair - the riser and Olwa as needed From 5 to 25 years DAMIO?? IDSPE0MI0M0 MM??IPCE IIMSPERDIRIMSAIME DRIRIIMAIMM ERSIMRE MHE IMA5IIMCSDADE PRIM PEIMMMRSWM WERMEIMAIMSE MHE DIMIRR [MEN MHE IRS? ?? ?IRS IS MIIMRAREM MD MHE DMD??ADWIM??HEDRMWAM????MSHAM RE DESPRMSIMCE ??DMRR? ??IRD RHE EMMIMEEM AMR It! SPEM??RPDIIMD ?? IRSRAMOAIMIDRMMM CRIME SIME RISIPS AIMR IIMSPEMMIMMS ARE DEDDIPEMM[ME SRHEMM REM MR MHE PMRMAMMD?? IMH MHE EIMRIREER AM IRSPEDW M??RRIRD MHE W???R IRD ? ?ES MCI MHE IM EM PDRDM DPDSMDDRIIMD PMR IME55IM MM PIMEMRIM ??MPRIPD MEEMIRM MM ID IMIARSIDE PDEPARAMIRM [AM RMMIRD IMM? ? IMR RMPRM GEMS EDS??R WIN ?? MP ERRAMARIIM M mMAP ID IM GE®®IM IMERI MIMIC! AR ECEMAMIM R 5M ??DER PRMR ID ? ?? ?IMM GE®®IM MERIM ARM DIM AD EGEMAMIMRSM SIM IRS? ?IDR RIMRHE EMPARDMEDP®HE IMISEMCPRIMAMR SPI ?? AMMAM DPHEDD?? IMSMRO?WREMi® MM PCAR DIRD ADM RED EIMASIRE $? ?IMM? ?IRS PHASE MIMH AD EMPERIEDMED? ?RSRAPE AMDHIMEDM PMESEM?? SIM IMIIM AIM ID SPEDRID R ®EP EM P A M IM RH MSD M P RARIM? ? AIMREPCAIM REP COUNTY OF:1LBEb1ARI.E Department of Community Development Construction Record Drawings (As -built) for VSMP The following is a list of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation The items include, but are not limited to the following: I. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 5. Current physical and topographic survey for all earthen structures. Ponds should include a survey of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be require( for alterations from the design. 6. Plants, location and type. 7. Plans and profiles for all culverts. Pipes, Risers, weirs and Drainage Structures -Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end tteatment(s), inlet and outlet protection, alignment and invert elevations compared to design. 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 9. Ditch Lines -Display the constructed location of all ditch lines and channels including typical sections and linings. 10. Easements -Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. 11. Guardrail, fences or other safety provisions -Display the constructed location of all safety provisions; fences, guardrail, including the type, length and applied end treatments, compared to design 12 Material layers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection reports, boring or test pit reports and materials certifications. Biofilter media must be an approved state mix. 13. Access roads -show location of access roads, surface treatment, drainage, etc, as appGcabte. 14. Compaction reports are required to verify fill compaction in dams. 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. ._" rinr prated i:aok atl.avP.ed wc4 7:8- loiterer e hole. lsorrletric PtPe t. a' HOPE plate (optional) calve rL 11nPK elnwlurnl pies) lc wt Ut -r O 2-1/11" holee and I/<" pieta mvnuf. cl aced b rlB ellc 00 J1 seluna tlaIna, or eq uel f 000 MMMM emtm •IW upuonel ptnte x�d 'CA311- H[IPr sl ntolvral plvellr wllh C OC t1D{1 hclee and 1/4' plate mmufac[ured by Plevtic Solo Hnn• Inc or equal i;'P dta hnlr 0 0 o OO o o ° Mingle our rlf[ry Elevation PLASTIC T)FRRTS CAGE sal.vTloNr M'nlM.wa.er VA `LLEW [YC. B77-a77-bx�•7 4 se min SECTION A=9: 'fiiPICAL GRAPffiCAL DETAILS Homogeneous fill 1 I �'�Cut off trend!-4' below suitable� material Soil or rock L - - - - - - - - - - - J TYPICAL HOMOGENEOUS EMBANKMENT 'Pipe outlet Coa fi r Perforated collector orourtrel s�efs "',Foundation drain rnn FOUNDATION DRAIN Sand, Bard or rod drain wtk: �Twnsilion filter CHIMNEY DRAIN Inc Transition fill Rock or grovel Blanket drain BLANKET DRAIN Rode or grovel drain Transition filter TOE DRAIN Figure A -la. Hotnognreons Enlbanknrents ,r .Seepage Controls EMDADOMEDDDDDESD AMER A['1100ESMIDAb7180©0MHE SIDE®Sb716fM 51©E ©I51 t t ADAH'tElS MM MHE SD©DEDEO M PIE DDAPHD ADD AD EDAMIDADID M DD MA D EM APPE©DID ADEADOHED EMDADOMEDMMHE APPMDADD HAS PDDDID EM A DD MPDEHED SIDE EMDADOME©©DESI©® ]HAD DD ES REM DEED AIMEDDEDHDIDADSMDD AD ]HIS DIMEDSDOH IS DHE DASE DDE ® MHE PMEQAf+]19IM19P.MMEM©AfA©MEQO©E5100 PQ©P©SmOA SOMMADDDDOHE EMDADOMEDD MESIMM DEDDI©EMEDOS ADE OSDED DEMD ADD D®]HIS SHEEMMADDADIDD OHE DOD v tADM D MEEM MHESE DED D I©EMEDOS AD A MI©IMD MD MHE EMDAD OMEDOS SHAM HADE A DD MPADDED DDAD DDDE D IMH ADDOHMMEDOH D DE ID AD®DDADDE D IMH DHE D EDAIGE SHDD D DD ID ]HIS POdI©mEDMS ADD SPIN ADS SHAMDE SWIODED D IMH ED® MAMIDD D DIPDAP A[iD DHE DEMAID IDD DIS®DDED SD7 PES SHA®DE SuDIaDED D IMH EDO] MAMIDDDAMDEDM DIM MAD®IADSHAMDDD SISD D O M SD DD DD SIM IDS D DE MEE DDD DDOMDODSMDDOS DD ADD D OHED DD D DD MPA®IDD SD IMM MPADDED DIMSHAMDE PDDOMD MADIMOM DDD DEDSIM ASOM DOM ADD HADEA MIDIMOM DDT DO MADIMOM DDD DEDSIM ADOM DD D PDIMD M MD ISMDE DDDDEDma.MDl M MADEDIADADD DDD St �DDDIDD SHAMDE APPDDDED DD AD DD SIDE D EDDEDHD IDAD EDDID EED PDESEDD MMMIMM DHE DDD SMDDDIDD DD DHE EMDADOMEDOS ADD DIMADEASD LCONCRETE LIP Q VA86Ft_D STORMWATER DESIGN SPECIFICATION N0.2 SHEET FLOW TO FILTER OR OPEN SPACE ICY LEVEL SPREADER � rJTO EXISTING GRADE RIPRAPPWNGE POOL .0 - RIPRAP APRON X Td REATED TIMBERS OR LENGTH OF LEVEL SPREADER ° bq O.OR LIP TO BE BASED ON DESIGN ROW 1 I, AND ALLOWABLE VAOCIT' •- < I TOP OF LF/H"SPAEADER I SHALL BE FLAT i1 d� +-3 IN. COURSE AGGREGATE % OR OTHER LINING AS � DESIGNED FOR STABILITY PLAN VIEW DIMENSION BASED ON urrnt?rurtem EXteTe43 arw°E DESIGN DISCHARGE�O0'ti OR )Erse. �F VECETAT�o _ FLm;A 97RP OR GOh66M/® OPEN SPACE FPST 10 FEET LFS6 2'MIN TVNF 3 MIN 1O MIN 3MW 12. 'I MIN. DEPTH BASED O � I REQUIRED STONE SIZE i -I J I I I I I I I I I I i I I I I L J SEC1lON A -A Figure 14: Level Spreader: Pipe or Channel Flow to Filter .Strip or Conserved Open Space f+EB®SMEADEO DD DESD ® DIDSD DAD M MEDEDSPDEAD ED aP MOSD OE ® OD ftESSD M DIE DADD EDOS DDDEDEDSPDEAD ED ID®DHE SM PEM AG7D I©5®8©I©8© M DD NTDDDTDD SDD LL ND TIC'. DD LL[3J5 ONL']OJDDOnJD D M[iJQdD MDDDD DDD DD®D Tu TDD M© NSTDD OTIID N M D D No LDDOL SDDDDDDOMD LLnJS ONOnJDDDOJOf$ DDOSONDD fi DDD D®DD OTTDO TOri'] D D TDO LL']DOL SDDDDDDOSMD NSTL'1D0'. T®N9M "lDOTTDD LDDOL SDDDDOM111SD3f^®'L LD DOTZ NS DO N DD ALL'] OL'. D®DDaJO LLD] DOTIIM NS MMM DDDD SLIIIBOTLD MD M TDD D©��© DDD OLD NS QJ D DDDD TD DDOSM DDD M LDDDD TD'®[i[[11 M DO NTDDDTDO SDD LLO SDD DDD T<d0T({➢['IiTtiMm00®ON©0'OLMBMMNT DOLDD Too©©©DOsoo too©Ls©000000sTENMmNo00oTooTanmToo MDD®SDDLLDIM TENSER TRIP] TERM NOR IBM DD®MDDDMINE LONTD Filter Strips Planting Vegetate uunnrt•rmur 111111 ■Inrnrt• ■ulrm ■. ■unw w ■rumu ■ • 1 ■ r ■rr ■r ■ulrurrlrrr ■uu w■ rrrurt r ■rill■ rlrrrlr■ ■rr11111GI rllllllr GIII■ rlrrlllr■ rlr rn rn ■rrrlrl . ra ■rn III■ ■rllllrllllilrrr• ■rrr ■rllr ■6 rlrt ■ ■■ t i ■u■ ■rrrr rllnulumrururt ■ruI■ w nuuutuul■ r nllluun r 11 ■ ■■ nllur III, ill ■uunnn■ rlrrinmrrlllu nr ■r ulna ■ ■rt ■■ r ■rw■ ■nlr ■r umurrmrm In o■ ■rt ru■ ■■ mu uw■ r m r ■ ■uuurnluu • 1 ■ lulr ■u ■ml r ■llnlrrrt r ■nlr ■r ■ullurrwun mrnruurl ■unulr■ unu m■ unu nuu ■rr ■ m■ ■r r ■ art nu ■ ■■ ■ulr ■curt w■ ■r ■rum ■r ■ rlrrluu ■rm w ■nurmrt ■uu moonlit ■ ■r not r ■■ ■Inrnn■ r ■urlu MOIL, . mr. rt mm rlru■ m ■llllurnr .nor ■alum hurt uuI■ ■rt louu <.. nwunM w■ ru■ rlulllnrt m ■■ ■Inrnnt lurinu 1 ■e lurnr ■rt lurllu■ ■■ ■u■ ■ m ■r wr : olu r, ■nuu nr ■r • rI ■rm r.' lu • ■r ■■rrrr ■rune a nor. ■■ ■r nr ■runic Table 2.4. Vegetated Filter Strip Materials Specifications EC-3)_ Matting RM m Material f+EB®SMEADEO DD DESD ® DIDSD DAD M MEDEDSPDEAD ED aP MOSD OE ® OD ftESSD M DIE DADD EDOS DDDEDEDSPDEAD ED ID®DHE SM PEM AG7D I©5®8©I©8© M DD NTDDDTDD SDD LL ND TIC'. DD LL[3J5 ONL']OJDDOnJD D M[iJQdD MDDDD DDD DD®D Tu TDD M© NSTDD OTIID N M D D No LDDOL SDDDDDDOMD LLnJS ONOnJDDDOJOf$ DDOSONDD fi DDD D®DD OTTDO TOri'] D D TDO LL']DOL SDDDDDDOSMD NSTL'1D0'. T®N9M "lDOTTDD LDDOL SDDDDOM111SD3f^®'L LD DOTZ NS DO N DD ALL'] OL'. D®DDaJO LLD] DOTIIM NS MMM DDDD SLIIIBOTLD MD M TDD D©��© DDD OLD NS QJ D DDDD TD DDOSM DDD M LDDDD TD'®[i[[11 M DO NTDDDTDO SDD LLO SDD DDD T<d0T({➢['IiTtiMm00®ON©0'OLMBMMNT DOLDD Too©©©DOsoo too©Ls©000000sTENMmNo00oTooTanmToo MDD®SDDLLDIM TENSER TRIP] TERM NOR IBM DD®MDDDMINE LONTD Filter Strips Planting Vegetate uunnrt•rmur 111111 ■Inrnrt• ■ulrm ■. ■unw w ■rumu ■ • 1 ■ r ■rr ■r ■ulrurrlrrr ■uu w■ rrrurt r ■rill■ rlrrrlr■ ■rr11111GI rllllllr GIII■ rlrrlllr■ rlr rn rn ■rrrlrl . ra ■rn III■ ■rllllrllllilrrr• ■rrr ■rllr ■6 rlrt ■ ■■ t i ■u■ ■rrrr rllnulumrururt ■ruI■ w nuuutuul■ r nllluun r 11 ■ ■■ nllur III, ill ■uunnn■ rlrrinmrrlllu nr ■r ulna ■ ■rt ■■ r ■rw■ ■nlr ■r umurrmrm In o■ ■rt ru■ ■■ mu uw■ r m r ■ ■uuurnluu • 1 ■ lulr ■u ■ml r ■llnlrrrt r ■nlr ■r ■ullurrwun mrnruurl ■unulr■ unu m■ unu nuu ■rr ■ m■ ■r r ■ art nu ■ ■■ ■ulr ■curt w■ ■r ■rum ■r ■ rlrrluu ■rm w ■nurmrt ■uu moonlit ■ ■r not r ■■ ■Inrnn■ r ■urlu MOIL, . mr. rt mm rlru■ m ■llllurnr .nor ■alum hurt uuI■ ■rt louu <.. nwunM w■ ru■ rlulllnrt m ■■ ■Inrnnt lurinu 1 ■e lurnr ■rt lurllu■ ■■ ■u■ ■ m ■r wr : olu r, ■nuu nr ■r • rI ■rm r.' lu • ■r ■■rrrr ■rune a nor. ■■ ■r nr ■runic Table 2.4. Vegetated Filter Strip Materials Specifications EC-3)_ Matting RM m Material Specification Quantity Pea Gravel (#8 or ASTM equivalent) or Diaphragm should be 2 feet wide, 1 Gravel where steep (6% ) use clean bank run foot deeP, and at least 2 inches Diaphragm VDOT #57 or ASTM equivalent (1-inch below the edge of pavement - maximum). Permeable 40°k excavated soil, 40% sand, and 20% pea gravel to serve as the media for the Berm berm. Fitter Fabric Geotextile material appropriately selected for placement under rip rap or gravel to effective) separate the stone from the round below - Engineered Level Spreader lip should be concrete, metal, timber, or other rigid material; Level Reinforced channel on upstream of lip: VDOT EC-3- Spreader See Hathaway and Hunt (2006) or Henrico County Program Manual for alternate des ns. Erosion Control Where flow velocities dictate, use woven biodegradable erosion control fabric or Fabric or mats that are durable enough to last at least 2 growing seasons- (e.g-, VDOT Erosion Control matting StorrnRaxTM ROUND SERIES TRASH RACK CONCRETE MANHOLE STANDARD 601NCH RACK SHOWN DIMENSIONS IN INCHES (OR EQUIVALENT) PLAN - 11DPF eiRUCNRAt PIANRCNY ' PU4rK Sa[tlrWe,NG r' SIDE VIEW StormRaxTr" Round Series for Concrete Manhole Hit Na pmA qmr Min ID MIn OD AS-24 37yt 14i 21 ao Rs-36 21 < 14 t4o ?6 430.Sd8 271B 4l 57 As6q 2715)By 60 70 Plastic Solutions, Inc. CUSTOME& � f0 Box 4386, Winchester, VA 11600 r3e McGhee Nit, NAncitesrer. VA 77603 - ;8771977-5727 phorc patlEtT; i540) 722-2119 fax http://www.plasi7c-soWdan.mm a11M'[R 9EC'110F - RLYWNNC fORAG^C35 ISOMETRIC CONCRETE STRUCTURE ]DIMENSIONS INSIDE STRUCTURE DIMENSION OUTSIDE STRUCTURE DIMENSION AVAILABLE OPTIONS CROSS BRACING FOR OVERHAND HDPE ANTI -VORTEX PLATE I DATE: auw4rr. MPDt7Y: DETAIL No. 35791 'p 7/29/22 O S,p tisIONAL Si i (I W z z r M M N M 1 N O O N N J J O J Q U 1 Y W NW LLLU NW O O NLU 182154 AS SHOWN SHEET NO. 19 HUGGER SINGLE BAR, BAND FLAT GASKET BOLT AND STRAP (SBBS) FLAT GASKET CONNECTION DETAIL (SBBS) 2 2/3"xl/2" RE -ROLLED END HEL-COR PIPE GENERAL NOTES: 1. JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4. 2. BAND MATERIALS AND/OR COATING CAN VARY BY LOCATION. CONTACT YOUR CONTECH REPRESENTATIVE FOR AVAILABILITY. 3. BANDS ARE SHAPED TO MATCH THE PIPE -ARCH WHEN APPLICABLE. 4. BANDS ARE NORMALLY FURNISHED AS FOLLOWS: + 12"THRU 48" 1-PIECE • 54" THRU 96" 2-PIECES • 102" THRU 144" 3-PIECES 5. BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS. 5. ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 2 2I3"xl/2" 7. DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES. 8, ORDER SHALL DESIGNATE GASKET OPTION, IF REQUIRED (SEE DETAILS ABOVE). H-12 HUGGER BAND DETAIL NOT TO SCALE 20 MIL PE IMPERMEABLE LINER OVER TOP OF PIPE LIMITS OF (IF REQUIRED) REQUIRED BACKFILL 41270TYP. 36" TYP. 36" SEE TYPICAL WBACKFILL DETAIL NOTES F z w 0 w m w w a a TYPICAL SECTION VIEW NOT TO SCALE NOTE: IF SALTING AGENTS FOR SNOW AND ICE REMOVAL ARE USED ON OR NEAR THE PROJECT, A GEOMEMBRANE BARRIER IS RECOMMENDED WITH THE SYSTEM. THE GEOMEMBRANE LINER IS INTENDED TO HELP PROTECT THE SYSTEM FROM THE POTENTIAL ADVERSE EFFECTS THAT MAY RESULT FROM A CHANGE IN THE SURROUNDING ENVIRONMENT OVER A PERIOD OF TIME. PLEASE REFER TO THE CORRUGATED METAL PIPE DETENTION DESIGN GUIDE FOR ADDITIONAL INFORMATION. I^� TRENCH CONDITION EMBANKMENT CONDITION - !FOUNDATION DIAMETER MIN. COVER CORR. PROFILE 6"-10" 12" 1 1 /2" x 1 /4" 12"48" 12' 2 2/3" x 1/2" 54"-96" 12' 3" x 1", 5" x 1" 102"-144" D/8 3" x 1", 5" x 1" BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26) 1 MINIMUM TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE MINIMUM TRENCH WIDTH (12.6.6.1): PIPEs12";D+16" PIPE > 12": 1.5D + 12" la MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2): PIPE K 24": 3.0D PIPE 24" - 144": D + 4W PIPE > 144": D + 10'0" 2 THE FOUNDATION UNDER THE PIPE AND SIDE BACKFILL SHALL BE ADEQUATE TO SUPPORT THE LOADS ACTING UPON IT (26.5.2). 3 BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF THE PIPE, AND A MINIMUM OF TWICE THE CORRUGATION DEPTH IN THICKNESS, WITH THE MAXIMUM PARTICLE SIZE OF ONE-HALF OF THE CORRUGATION DEPTH (26.3.8.1, 26.5.3). 4 CORRUGATED STEEL PIPE (CSP / HEL-COR). 5 HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION (26.5.4). 5a INITIAL BACKFILL FOR PIPE EMBEDMENT TO MEET AASHTO A-1, A-2 OR A-3 CLASSIFICATION, OR APPROVED EQUAL, COMPACTED TO 90% STANDARD PROCTOR (T 99). MAXIMUM PARTICLE SIZE NOT TO EXCEED 3" (12.4.1.2). ALL LIFTS PLACED IN A CONTROLLED MANNER. IT IS RECOMMENDED THAT LIFTS NOT EXCEED AN 8" UNCOMPACTED LIFT HEIGHT TO PREVENT UNEVEN LOADING, AND THE LESSER OF 1/3 THE DIAMETER OR 24" AS THE MAXIMUM DIFFERENTIAL SIDE -TO -SIDE (26.5.4). 6 INITIAL BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE). SEE TABLE ABOVE. 6a TOTAL HEIGHT OF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.6.6.3). 7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS PER THE ENGINEER OF RECORD (26.5.4.1). NOTES. • GEOTEXTILE SHOULD BE CONSIDERED FOR USE TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER). • FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE PIPE DIAJ2 BUT NO LESS THAN 12", OR 36" FOR PIPE DIAMETERS 72" AND LARGER. • CONTACT YOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING (TABLE C12.6.7-1). TYPICAL BACKFILL DETAIL NOT TO SCALE TEMPORARY COVER FOR CONSTRUCTION LOADS HEIGHT OF COVER CONSTRUCTION LOADS FINISHED GRADE FOR TEMPORARY CONSTRUCTION VEHICLE LOADS, AN EXTRA AMOUNT OF COMPACTED COVER MAY BE REQUIRED OVER THE TOP OF THE PIPE. THE HEIGHT -OF -COVER SHALL MEET THE MINIMUM REQUIREMENTS SHOWN IN THE TABLE BELOW. THE USE OF HEAVY CONSTRUCTION EQUIPMENT NECESSITATES GREATER PROTECTION FOR THE PIPE THAN FINISHED GRADE COVER MINIMUMS FOR NORMAL HIGHWAY TRAFFIC. AXLE LOADS PIPE SPAN, INCHES (kips) 18-50 1 50-75 1 75-110 1 110-150 MINIMUM COVER (FT) 2.0 2.5 12-42 48-72 3.0 3.0 78-120 3.0 3.5 126-144 3.5 4.0 'MINIMUM COVER MAY VARY, DEPENDING ON LOCAL CONDITIONS. THE CONTRACTOR MUST PROVIDE THE ADDITIONAL COVER REQUIRED TO AVOID DAMAGE TO THE PIPE. MINIMUM COVER IS MEASURED FROM THE TOP OF THE PIPE TO THE TOP OF THE MAINTAINED CONSTRUCTION ROADWAY SURFACE. CONSTRUCTION LOADING DIAGRAM NOT TO SCALE 36"0MAX.,HS-25ACCESS CASTING REINFORCING TABLE TH OFF WITH GRADE RINGS AS REQUIRED, TO v BE PROVIDED AND INSTALLED BY "BEARING O CONTRACTOR. MAYBE TOP MOUNTED 0 CMP CMP (AS SHOWN) OR RECESSED. A B 0 REINFORCING PRESSURE PROTECTION a RISER (PSF) SCOTT R. LLINS'Z SLAB RIM/FINISHED -- - O a GRADE _ __- _ � VARIES 0 L) No. 35791 2� 7� iv 4'0 #5 @ 10" OCEW 2,540 T ' 24" a'xa' 2s" #5 @ 10' OCEW 1,900 0�0 7/29/22 �A o-`-- @ s 10NAL E GS _ q'-0^0 #5 10" OCEW 2,260 S P • _d 30" 4'-6" x 4'-6' 32" #5 @ 9" OCEW 1,670 ,� 5'0 #5 @ 9" OCEW 2,060 GASKET MATERIAL 0 CMP RISER ¢ 36" 5' x 5' 38" #5 @ 8" OCEW 1,500 SUFFICIENT TO PREVENT a -- SLAB FROM BEARING ON w 42' S'-5-6"5-6" #5 @ 8" OCEW 1,370 RISER TO BE PROVIDED BY CONTRACTOR. 01311"TYP. w 60 #5 @ 7" OCEW 1,210 SECTION VIEW 48 6'x& 50" #5@7"OCEW 1,270 ACCESS CASTING NOT SUPPLIED BY CONTECH cs 0 A A0 $, B #4 DIAGONAL TRIM 7 � BAR (TYP. 4 PLACES), __ __ SEE NOTE 7. t- i L- - GO i<� L 14 it �i�\ OPENING IN PROTECTION -- SLAB FOR ACCESS INTERRUPTED BAR SPECIFICATION FOR CORRUGATED STEEL PIPE -ALUMINIZED TYPE 2 STEEL REPLACEMENT, SEE SCOPE HANDLING AND ASSEMBLY NOTE 6. THIS SPECIFICATION COVERS THE MANUFACTURE AND SHALL BE IN ACCORDANCE WITH RECOMMENDATIONS OF THE INSTALLATION OF THE CORRUGATED STEEL PIPE (CSP) DETAILED IN NATIONAL CORRUGATED STEEL PIPE ASSOCIATION (NCSPA) THE PROJECT PLANS. UNDERGROUND DETENTION SYSTEM NOTES: INSTALLATION 1. TRASHRACKS SHALL BE INSTALLED ON ALL ORIFICES, MATERIAL INCLUDING THOSE LOCATED ALONG THE WEIR PLATE WITHIN SHALL BE IN ACCORDANCE WITH AASHTO STANDARD THE UNDERGROUND DETENTION SYSTEM. THE ALUMINIZED TYPE 2 STEEL COILS SHALL CONFORM TO THE SPECIFICATIONS FOR HIGHWAY BRIDGES, SECTION 26, DIVISION II 2. DETENTION SYSTEM's WEIR PLATE TO BE APPLICABLE REQUIREMENTS OF AASHTO M274 OR ASTM A929. OR ASTM A798 AND IN CONFORMANCE WITH THE PROJECT PLANS PRE -MANUFACTURED AND DELIVERED TO THE SITE. WEIR AND SPECIFICATIONS. IF THERE ARE ANY INCONSISTENCIES OR PLATE SHALL BE BOLTED TO THE UNDERGROUND DETENTION PIPE CONFLICTS THE CONTRACTOR SHOULD DISCUSS AND RESOLVE SYSTEM, OR SIMILARLY FASTENED, TO ENSURE IT HAS A WITH THE SITE ENGINEER. SECURE CONNECTION. THE CSP SHALL BE MANUFACTURED IN ACCORDANCE WITH THE 3. ANY RETAINING WALLS AND FOUNDATIONS CONSTRUCTED IN APPLICABLE REQUIREMENTS OF AASHTO M36 OR ASTM A760. THE IT IS ALWAYS THE RESPONSIBILITY OF THE CONTRACTOR TO THE VICINITY OF THE UNDERGROUND DETENTION SYSTEM PIPE SIZES, GAGES AND CORRUGATIONS SHALL BE AS SHOWN ON FOLLOW OSHA GUIDELINES FOR SAFE PRACTICES. SHALL BE REVIEWED AND APPROVED BY THE STRUCTURAL THE PROJECT PLANS. ENGINEER AND A GEOTECHNICAL ENGINEER. 4. THE ADJACENT PUBLIC ROAD WILL SERVE AS ACCESS TO ALL FABRICATION OF THE PRODUCT SHALL OCCUR WITHIN THE THE UNDERGROUND DETENTION SYSTEM. 5. CONTACT COLLINS ENGINEERING (434.293.3719) REGARDING UNITED STATES. ANY QUESTIONS CONCERNING THE UNDERGROUND DETENTION SYSTEM. 6. ALL FILL EMBANKMENT MATERIAL SHALL CONSIST MATERIAL SPECIFICATION PREDOMINANTLY OF SOIL AND BE PLACED IN SUCCESSIVE UNIFORM LAYERS NOT MORE THAN 8 INCHES IN THICKNESS NOT TO SCALE BEFORE COMPACTION OVER THE ENTIRE AREA IN ACCORDANCE WITH THE CURRENT VDOT ROAD AND BRIDGE SPECIFICATIONS. 7. VDOT STD. IS-1 & ST-1 ARE REQUIRED ON THE UNDERGROUND DETENTION SYSTEM STRUCTURES, INCLUSIVE '-1'-4 2y2" OF THE BYPASS STRUCTURES. S. ALL FILL SHALL BE COMPACTED IN ACCORDANCE WITH MINIMUM PIPE MANUFACTURER REQUIREMENTS AND TESTED BY A GEOTECHNICAL ENGINEER TO ENSURE COMPACTION IS ALL STEEL PER REACHED AND MAINTAINED. 3/4 (#6) REBAR CAN BE CUT FLUSH - ASTM A36 9. PRIOR TO CONSTRUCTION THE CONTRACTOR SHALL TO OUTSIDE OF RAIL TEST -DIG AT THE EXISTING INLETS & OUTFALLS TO (BAR LENGTH = 16%q) OR BAR CAN 4 > CONFIRM THE INVERTS AND TO ENSURE THE PROPOSED EXTEND BEYOND RAILY2"t ~ FABRICATION TOLERANCE: ±Y4" GRADES CAN BE ACHIEVED. CONTRACTOR SHALL CONTACT _ a FLAT BAR AND REBAR: MILL COLLINS ENGINEERING OF ANY DISCREPANCIES IN THE TOLERANCE APPLIES HORIZONTAL OR VERTICAL ALIGNMENT PRIOR TO ORDERING TYP AND CONSTRUCTION. 10. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR CONSTRUCTION - INDUSTRY (29 CFR PART 1926). 12"TYP. %" HOLE w/Y4" REBAR RUNG, 11. CONTRACTOR SHALL PROVIDE ADEQUATE STONE BACKFILL CENTER TO CENTER WELD REBAR TO RUNG ON FOR THE UNDERGROUND DETENTION SYSTEM PIPES IN RUNG SPACING OUTSIDE OF STEEL RAIL ACCORDANCE WITH THE MANUFACTURER's REQUIREMENTS. - e 2Y2" x %" FLAT BAR SIDE RAIL PLAN FRONT 48"0 to 90"0 FITTING REINFORCEMENT MAY BE REQUIRED BASED ON HEIGHT OF COVER AND LIVE LOAD CONDITION TYPICAL MANWAY DETAIL NOT TO SCALE PLAN SIDE NOTES: 1. LADDERS CAN BE MADE IN 20'-0" STANDARD LENGTHS AND CUT TO FIT 2. ALL MATERIAL TO MEET ASTM A36 3. LADDER TO BE HOT DIPPED GALVANIZED PER ASTM A-123 AFTER FABRICATION IS COMPLETE STANDARD LADDER DETAIL NOT TO SCALE PART NO. HALAGVL16 PROVIDE MINIMUM OF 4 ATTACHMENT ANGLES (2 ON EITHER SIDE OF LADDER RAIL) TO CONNECT LADDER TO RISER EXTENSION RISER w/ LADDER AND STEPS IF EXTENSION IS REQUIRED RISER w/ LADDER AND STEPS MAINLINE CMP 2yxY2,5x1,3x1,ETC. NOTE: THIS DRAWING IS INTENDED TO APPLY TO LADDERS INSTALLED IN RISERS HAVING A DIAMETER OF 30" OR LARGER. DUE TO SPACE CONSTRAINTS AND LIMITED ACCESSIBILITY, THE PRACTICALITY AND SUITABILITY OF UTILIZING RISERS SMALLER THAN 30" DIAMETER AND/OR INCORPORATING LADDERS IN THESE SMALLER DIAMETER RISERS SHOULD BE ADDRESSED BY THE OWNER AND PROJECT ENGINEER #4 DIAGONAL TRIII BAR (TYP. 4 PLACES' SEE NOTE 7 2" COVER (TYP) _1 �l I OPENING II PROTECTIOI YC -----�I--� `-fit---- SLAB FOI ACES, Il -I STANDARD STANDARD REINFORCING, REINFORCING, SEE TABLE SEE TABLE ROUND OPTION PLAN VIEW NOTES: 1. DESIGN IN ACCORDANCE WITH AASHTO, 17th EDITION AND ACI 350. 2. DESIGN LOAD HS25. 3. EARTH COVER = V MAX. 4. CONCRETE STRENGTH = 4,000 psi 5. REINFORCING STEEL = ASTM A615, GRADE 60. 6. PROVIDE ADDITIONAL REINFORCING AROUND OPENINGS EQUAL TO THE BARS INTERRUPTED, HALF EACH SIDE. ADDITIONAL BARS TO BE IN THE SAME PLANE. "NOTE: WHEN RISER EXTENSIONS ARE USED, THE PLANT SHOULD CUT 3" FROM THE SIDE RAILS AS SHOWN '3" FROM BOTTOM OF LADDER 0 RAIL TO RISER JOINT '3" FROM TOP OF LADDER RAIL TO RISER JOINT FO LADDER RAILS AND RUNGS (2) Y4" FILLET WELDS 1" LONG ATTACHMENT ANC L5" x 3" xY" x 16" LONG AT V-0" MINIMUM OF 4 ANGLES F SPACING. LONG LEG TO LADDER SECTION, (2 EACH SIDE PROJECT OUT. WELD TOP LADDER) 6' MAX. SPACI V-6- AND BOTTOM OF 3" LEG TO EACH VERTICAL MAX, CORRUGATION CREST (THESE ANGLES SHOULD BE USED a_ FOR LARGER DIAMETER d MAINLINES WHERE ADDITIONAL STEPS ARE NEEDED) 6" FROM RUNG TO RISER JOINT 6" FROM RUNG TO RISER JOINT SECTION A -A RISER LADDER DETAIL NOT TO SCALE RISER NORMALLY CMP WITH 22/3" x y" CORRUGATIONS (4)Ye" FILLET WELDS FROM EACH ANGLE TO CORRUGATION CREST (2 WELD EACH SIDE) L3"x3"x js" 5y" LONG fa SQUARE OPTION PLAN VIEW 7. TRIM OPENING WITH DIAGONAL #4 BARS, EXTEND BARS A MINIMUM OF 12" BEYOND OPENING, BEND BARS AS REQUIRED TO MAINTAIN BAR COVER. 8. PROTECTION SLAB AND ALL MATERIALS TO BE PROVIDED AND INSTALLED BY CONTRACTOR. 9. DETAIL DESIGN BY DELTA ENGINEERS, ARCHITECTS AND LAND SURVEYORS, ENDWELL, NY. MANHOLE CAP DETAIL NOT TO SCALE (4)y6" FILLET WELDS FROM EACH ANGLE CORRUGATION CREST (2 WELDS EACH SIDE) (4) L3" x 3" x 3/6" _ 5Y2" LONG (2)Y4" FILLET WELDS 1" LONG FROM EACH ANGLE TO LADDER RAIL LADDER RAILS AND RUNGS I�Ad►1 (4)y6" FILLET WELDS FROM EACH ANGLE TO CORRUGATION CREST (2 WELDS EACH SIDE) _ _ L3" x 3" x 3/8` _ -- _fI 5Y2" LONG - I :111111:ky/alrol\ LADDER AND RUI N LuQ C1 N n W N O N W N Lu J J_ in ZLu w U) JLU Q O 0CD N u z W C) J z� UJ w M z w J/•� 0 L^L 6.L Q Q I_ II LLl I_ II I-" w Lf) Q O ^� ti 6.L Lu Lu z� UJ o Lu (LnL O V Lu zC) V / uj J E- p� LL w O W cl� m a Ln JOB NO. 182154 SCALE 4S SHOWN SHEET NO. 20 PLANTING SCHEME FOR EVERY 400sf (OR 20'x20' SECTION) SHALL CONTAIN THE FOLLOWING: MITIGATION MAINTENANCE PLAN: THE WATERSIDE 50% OF THE BUFFER: AN ANNUAL INSPECTION SHALL BE CONDUCTED IN THE NON -GROWING SEASONS DURING THE FALL OR WINTER MONTHS. THE ONE (1) 1�' - 2" CALIPER NATIVE CANOPY TREE OR LARGE EVERGREEN AT 6' INSPECTION SHALL TRIGGER MAINTENANCE OPERATIONS, AS REQUIRED. MAINTENANCE OPERATIONS MAY INCLUDE, BUT IS NOT LIMITED TWO (2) �'- 11" CALIPER NATIVE UNDERSTORY TREES OR EVERGREENS AT 4' OR ONE (1) NATIVE UNDERSTORY TREE AND TO, TRASH REMOVAL AND ENSURING A DENSE, HEALTHY GRASS / FOREST GROUNDCOVER. MOWING & BUSH HOGGING MAY BE ALLOWED WITHIN THE STREAM BUFFER AND MITIGATION AREAS FOR THE SOLE PURPOSES OF REMOVING OVERGROWN INVASIVE SPECIES AND FOR \,A" TWO (2) LARGE SHRUBS AT 3'-4' \ CLEARING THE TRAIL. HOWEVER THE MOWING &BUSH HOGGING SHALL BE LIMITED TO A MAXIMUM OF FOUR TIMES A YEAR. THE \ THREE (3) SMALL NATIVE SHRUBS OR WOODY GROUNDCOVER AT 15"-18" CONTRACTOR SHALL CONDUCT THE ANNUAL INSPECTION FOLLOWING THE FIRST YEAR THE PROJECT IS COMPLETED, AND THE OWNER �A ,/ O SCOTT R. LLINS'Z, THE LANDWARD 50% OF THE BUFFER: SHALL CONDUCT THE ANNUAL INSPECTIONS THEREAFTER. NATIVE BARE ROOT SEEDLINGS OR WHIPS AT 1,210 STEMS/ACRE, APPROXIMATELY 6' O.C. ` \ 1iI U No. 35791 a (600 MINIMUM PLANT SURVIVAL REQUIRED AFTER TWO GROWING SEASONS) OR MITIGATION SCHEDULE:'A,� 7�Z9�22 CONTAINER GROWN NATIVE SEEDLING TUBES AT 700 PER ACRE, APPROXIMATELY 5' O.C. THE CONTRACTOR SHALL SCHEDULE A MEETING ONSITE WITH THE COUNTY ENGINEER AND THE OWNER PRIOR TO ANY MITIGATION \ /^\\, \� „� off, (490 MINIMUM PLANT SURVIVAL REQUIRED AFTER TWO GROWING SEASONS) PLANTINGS TO FINALIZE THE LOCATION AND QUANTITIES. IN THIS MEETING THE CONTRACTOR SHALL PROVIDE AN APPROXIMATE DATE FOR THE MITIGATION PLANTINGS, WHICH SHALL OCCUR IN THE FALL OR SPRING. PLANTINGS SHALL ONLY OCCUR AFTER INITIAL UPLAND ESC MEASURES ARE IN PLACE. MITIGATION PLANTINGS SHALL BE COMPLETED PRIOR TO THE FULL RELEASE OF THE MITIGATION BOND. TIN PLANG NOTES 1. ALL MITIGATION PLANTINGS SHALL COMPLY WITH THE RIPARIAN BUFFERS GUIDANCE MANUAL BY CBLAD. C9 2. ALL MITIGATION PLANTINGS SHALL BE NATIVE TO ALBEMARLE COUNTY, VA. THE FOLLOWING ARE NATIVE TO ALBEMARLE COUNTY AND ARE PROPOSED WITH THIS PLAN, BUT MAY BE SUBSTITUTED WITH ANOTHER NATIVE PLANT: LIQUIDAMBAR STYRACIFLUA "ROTUNDILOBA" OR "ROTUNDILOBA SWEETGUM (CANOPY TREE) C`''/A�\j V A / / ' O \� �% - ' AA / z X AQUIPERNYI "DRAGON LADY' OR "DRAGON LADY" HOLLY (LARGE EVERGREEN) �' " / j \� / ` Ilk - ILEX / J ACER PALMATUM OR JAPANESE MAPLE (UNDERSTORY TREE) / A A �' / �V�^�� �/ / \ \ o MYRICA CERIFERA & CVS OR SOUTHERN WAX MYRTLE (UNDERSTORY EVERGREEN) _ BUXUS SEMPERVIRENS & CVS OR AMERICAN BOXWOOD (LARGE SHRUB) 3. ALL MITIGATION AREAS SHALL BE PROTECTED BY A MAINTENANCE AGREEMENT. I / / \ / / �%� A `y�� _ /i / I r� / 4. DCR's RIPARIAN BUFFERS MODIFICATION & MITIGATION GUIDANCE MANUAL DEFINES A CANOPY TREE AS A TREE THAT REACHES 35' IN HEIGHT OR LARGER WHEN MATURE. THE MANUAL DEFINES AN UNDERSTORY TREE AS A TREE THAT MATURES TO A HEIGHT OF 12' TO 35'. A LARGE SHRUB IS DEFINED AS A SHRUB THAT REACHES 10' OF HEIGHT GREATER AT MATURITY, AND A SMALL SHRUB IS DEFINED AS A WOODY PLANT THAT CAN REACH UP TO 10OF HEIGHT AT MATURITY. STREAM BUFER MITIGATION NOTES: THE EXSTING STREAM BUFER ON -SITE IS HEAVILY WOODED, SO TRADITIONAL MITIGATION PLANTING CAN NOT BE ACCOMPLISHED. THIS PLAN PROPOSES THE E)LLOWING MEASURES TO MITIGATE IMPACTS TO THE EXSTING STREAM BUE ER: 1. THE STREAM BUER SHALL BE RESTORED IN AREAS ALONG POWELLS CREE❑WHERE TREE / / \ I \ / =Q �/ \ / — ` / / �� ' / / / / ZO QQ y -�. t: COVER IS MORE SPARSE OR WHERE INVASIVE SPECIES HAVE OVERTAEN AREAS. THE TOTAL MAQMUM MITIGATION PLANTING AREA ®R THIS DEVELOPMENT IS LD,Lb QIII&OJAL TO 20THE PROPOSED IMPACTS❑ MITIGATION PLANTINGS SHALL FRST OCCUR ONSITE IN THE STREAM _ BUQER WHERE VEGETATION IS MORE SPARSE. I❑A TOTAL PLANTING AREA 0❑Q'',❑'i QIaAN I / / / �(\ O / / / , / / / , , \ I `�"""' �' \ �I/ // ' C ', = \� \ / Ln � .3 NOT BE LOCATED WITHIN THE SITE'❑STREAM BUE ER WHERE AREAS ARE LESS VEGETATED, / I \/ / \�\\i / \ \ , w In THEN THE CONTRACTOR SHALL HIRE AN ARBORIST TO PROVIDE A REPORT DEPICTING THE / ' / ' / _ \ \ , / �/ '�' n / ��` \ 0 o REPORT SHALL INCLODINVASIVE SPECIES WITHIN THE SITE'DSTREAM UDE A PLAN ®R THE REMOVAL 0❑THE INVASIVE SPECIES AND ®RR. THE OTHE T ❑ / / \ I / \ l i / / / / / �'� �� t; " P^ ._ 1 `\ o , '� S \ I� O F o AREAS' REPLANTING. THE REPLANTING 0❑THESE AREAS SHALL BE IN ACCORDANCE WITH THE /, / W � (,� ED0�4TIGATION PLANTING SCHEME SHOWN ON THIS SHEET. THE TOTAL MITIGATION / / / / / ��" "" \ w o PLANTINGS ❑ REPLANTINGS AREAS SHALL NOT BE REQUIRED TO EECEED 07,05® W ` \ 2. THE CORRECTIVE MEASURES DESCRIBED ABOVE WILL RESULT IN PLANTINGS THROUGHOUT THE OE ONSITE CONSTRUCTION. CREE❑STREAM BURR AND WILL MITIGATE THE IMPACTS FROM THE \ / / \ / r , \ ❑ A BOND SHALL BE PROVIDED PRIOR TO CONSTRUCTION ACCOUNTING Q)R THE COST 00*- \ REMOVING THE MAQMUM 07,05 DINVASIVE SPECIES AND ®R PROVIDING NEW MITIGATION PLANTINGS 00THE MAQMUM 0+,05= IN THE EVENT THE ARBORIST❑REPORT IDENTI❑ES LESS THAN 07,05 DAREA AVAILABLE EDR MITIGATION PLANTINGS\A�� o REPLANTINGS, THEN THE AREA 0❑INVASIVE SPECIES REMOVAL AND MITIGATION I / k� `/, ✓ / / / ' ;\ /; , / /, ' / / % T�4 ll o REPLANTINGS SHALL BE EQJAL TO THAT 00THE LESSER AREA DETERMINED BY THE ARBORIST DUE TO THE STATE O❑THE EQSTING HEAVILY ®RESTED STREAM BUEEEER. A / / A ��/ WWW / / AV ❑ THE ONSITE STREAM BUQfR'❑MITIGATION SHALL BE COMPLETED PRIOR TO THE FULL RELEASE i V C OOTHE MITIGATION BOND. \ / / / x ) ���JJJ, i / �-/ \.. n: + r i a ' E L9 F I / / M WI e• li '-. I A PROPOSED T fPLE BOX C LVERT uj D-6) (NOT PART OF THIS PLAN) AT., / o 8 POWELJ�C�REEK CROSSING WITH THE- '` / REPOSED MBLING B K LN 7 = � 3 OD m ° ° . PROPOSED IMPACTS ° .° ':.. ��, ®®�®°�a r\ /• I / / — iz6 / c) > �/ / // / / ✓i /' (9,281sf) TO THE WP0 MP 56A1J0 ✓ �, +V� �° %° TMP i15� BUFFER RESULTING - � ° ° 6- ° f FROM THE PROPOSED _ � `3 • PHASES II & III BUFCD DEVELOPMENT / • v ,i �.., / , , i I .°�' °'; s' r °° - - ✓sue•• -CREEK,-TV: - \ I' \°•• .,,. .e. •y,,= i I J n� l A / / / / / /i, �R / 1 '� �� �� • �' . • - PROPOSED IMPACTS 44 1755 TO THE �i ° _ v �� I I/ J o WPO BUFFER (PART OF CONNECTOR � \ • \ ' 3 \ � J /J //l/ J \ � / �� � I � � �// \ / / / / / / � �' / �• � � -a-: �J - ROAD VSMP PLAN - WP0201900027). \�� 1 �/ �� rr \ � � / I�/ � / / � a \ /4f / / / / = / % — MITIGATION FOR THIS AREA'S IMPACTS / c \ Ateh �6I I I I � / A / y• / / .�_�--� �ii' ---- o _ a / TM / .7 ARE COVERED UNDER WP0201900027 G p \ - - - I / LLJ Q ° /<fx/ a A / ��� \ j O / • / �%s�" V ' '� '- - - _ _ i / - - - - _ - A A - �� v A V O - - -/ - - •• •PROPOSED IMPACTS • / !� % � �� � �� � - � \ �z / /' / / 1/( (7,753sf) TO THE WPO / \� \� = \\ \� • / //,/� l / / // / o TMP 55Co03-A1- m BUFFER RESULTING FROM i" i/ THE PROPOSED PHASES II &1 �j//// / VAwA� ��� �� %� G / / I I Q h'I �. �INNER 50 OF - Q v / THE 100' > LOU D PR S ED WPO ®' / / �. STEEP OR M/BUFFER, / LLI < I --I L 41 MPSSC03-A-�/ // % / / // \ � o EXISTING CO CRETE/bAM PROP SED TOO BE , ' \ �' / // / ®® ® / // / O \ O 1 ul REMOVED E WPb2019000 HIS i�is� REMOVAL PT DF E CON 0 OAD's / / / /--WPO STREAM BUFFER LU T�I ' Q W z MITIGAT ON PLAN & WT I HEL -STORETH r{7: / / / % // 1 ° ®l ° - /' / i / \ / w NATIVE TR AM FLO NS. THIS \ / / /, _/ / / / - / V /uj HELP EST�RE THE IIPARI H -TAT \/ / =r -r AS B EN ALTERED D TH M�� -' / / // // � F� — C INSTRUCTION AND I W ATI F@ / v TRAVEL UPD STD // D�� //i RLu ESTORING I E B R ES THE// / \/ ( I / / ., 4 / / / ° m ` /� i — - / / C / O / \ \ fY g COUN STEEP (APES (TYP.� - / /,,� / '/ �� — — PROPOS� IMPACTS 80sf) RE / x P S II \ / O / �, � �� � / :.r� vex x/��0% �� ff "�°•�®® ��/�/ �'� / � \ IIID'E LOPM V Q � �CV PEP,- V A EXI G 12 WID x 8^HI / /• • ° V� 'T �i/% COUNTY INE PRIES ED D L BOX CULV �� / •>` = - g ®° LI TS OF POWE�LS STYE uj OPE 0 AI T P / O O E OWE L EK CROSSING '' \ 1 0, ..•/e ✓• <1s \ \ CREEK,TYP. J ' ITH EXISTING CLING LANE VE F o / v-- — EE w / V A ti / 1 ®. ' v • ° '� PROPO�ED IMPACT (2 O TH 0 NC){ C� o 11 j ,®TMP SSC d3 B • J BUFFER RESU I R M TH POSED �NGPE O %TMp 56 115 O� w o \ PH�15JOB NO. II & OP E U®...® ,••..••jam / \ ° \ o PROPE LIMITS, O O \ 182154 SCALE o Q \ V 1" = 100' o / V / SHEET NO. � n 21 w w w w w w w PROPOSED DRAINAGEED [DIDN EASEMENT, TYP.. — some@ a— — — _ _--- _ _— m ?eeee LET PLEASANT GREEN PHASES II & III PROPERTY LINE, TYP. w w w w e MON c"Mmmm w w Piz T SCOTT/R. CnCLINS'Z, _ U No. 35791 7/29/22 �4 - SIol VO, w -- --� w _ ■■!W .i!!!■■■■!!!!■■■RI�IIIWIIe�■■!®®��iiiiiiiiiiiiiiiil�®■■����wi�®®I•�Lld�r�Y®iP"'iloll '�■!!!!■■■■®!!®l�iiedif®®lirw�srst�a�:,� s]5�73�iL��i�IS/�K�77�:E� a�_ o _ ----- w w — — --- � -- _ _ -; -1 � 1 , _ _ ---- - 'j`r 4 --7— w \ _ 1--1 1 , -` TH 0 -s` —�— O ' 754 _ -- 75 75- w - _ - - - - 1 4 1 � SLOPES STEEPER THAN 3:1 SHALL BE PLANTED WITH NATIVE STEEP SLOPE MIX � \ F�� SS O ' • • - •�. %." � / WITH ANNUAL RYEGRA BY ERNST CONSERVATION SEEDS AT A RATE OF W � w I - MCCOMB STREET - - - _ - - 6o LBS. PER ACRE, OR 1 LB PER i 000 SF UNLESS SPECIFIED OTHERWISE (TYP.) , - - - - _ _ \ \ w -�� N - SCOTT R. LINS Z PUBLIC ROAD (56' R/W) - - M `- J M- D.B. , PG. M - / M—M .II / / / - - \ \ \ \ w w No. 35791 a - M f—n PROPOSED 8"HDPE ROOF/ 1- - - / / \ -7-4- - - -' l - �— w �_ —w- - .66 7/29/22 �4 �5+5o z5+oo' 66 zy+so - -- FOUNDATION DR STEM �3+0o z2+50 X 3z 418 5) / - - - - - \ - - - - - - - - - - - - - - - - � 24+00 �3 — - - F \ - _ r 5 \z�°OSOs:pe T / j ----- \^_ \ -----_ oPRIVATE / b .`` �S�3/CST %I ----------- - - - - -- ' : \ " 7�� � /I SS70NAL ECG DRAINAGE EASEMENT D.B. PG. _ - — - _ � - - - •., M STRUCTURES RF-23' r - - - W' TIE INT25 STING STORIv ° � 1/ / /------�32---- - - -- J 749 z5 PROPOSED 8 HDPE ROOF/ ro } - RF-z6 FOUNDATION DRAIN SYSTEM / 1 - - mGl -n l ^D my ^'> a I'-mD-_Ti -- �'�l 'r�i mD mD n'A / / RF-zA • �- \\\ �1 / m> m> / �^ n u I u '� D m D m> 5 ^� \.�� / / / En H m �� �� u u m � / �x A\\�� I II :L7 v Y V II V w loll W N I V II II II V II v II V7 V N O 3 N V1 V II V II V II lr V Vl V F+ Vt u�,W w w °o �Iuj W I �++ .: e" o �" ° / 1 / ��1� - INN 78BREPLACE EXISTING DI- B L=io' / / / w o. " tw N u, N N t+ o b o ° w LOB I W p I w V o w w / / F' �' o\ . A WITH NEW DI-3B (L=4')3 ( ) / \ / j // j / o LOT LOT „� ��, / u LOT LOT LOT OS o i LOT �T° LOT LOT LOT LOT 7 °°LOT /a� / 1$1 1$2 1� 4 N a 20 20 210 211 212 Q �' Q'' k EX-3o ` / / v) 180 m u o of 5 �a zo8 9 �* " - u 9 PROPOSED 8" HDPE ROOF/ o w FOUNDATION DRAIN SYSTEM 1I ° (> 206 io' PRIVATE DRAINAGE EASEMENT LOT�q) V /� A �/ i �' �� V/ � 0 >m----I -- RF_a5 78 I � �// � � � zo' PUBLIC DRAINAGE EASEMENTS // / / a > _ PHASE III vo — _ --- --- _ �� / 5. -PROPOSED iz" HDPE - D.B. 5z6y, PG. z97 / / \ 752 YARD DRAIN SYSTEM q 748 _ io' PRIVATE DRAINAGE EASEMENT / �/ / io' PRIVATE - �/ ( LOT / \ O u m \ / D.B. PG. / / � z II F •. � F�1 9 / DRAINAGE EASEMENT - ia56o _I 0 �o D.B. , PG. YD- _ = _ _ - - - TIE -INTO EXISTING STORM SEWER WITHPROPOSED 8" HDPE ROOF/ / zz O —� - 7oA - - PROPOSED DOGHOUSE n MANHOLE / 1 y / \// / �'' 1\G'FOUNDATION DRAIN SYSTEM z Q //4Lu - I o i o - - 46.00 G R=747. o - - - J - ----- � � v � LOT FE=747�6)/ 6°hI ICI � I �IYD-8E I I - i3. -�-�\- �� �g-� Q-'1��• ROPOSED DRAINAGE SYSTEM PROPOSED iz" HDPE 216 (�' % \ \ // / � ce io' PRIVATE 1H5 I \ / YARD DRAIN SYSTEM 0Lu -DRAINAGE EASEMENT I LOT S , v \ �3g / J / / / / o LOT LOT 737 b v LOT V / / x _ LOT �A , 3 \ OJECT BOUNDARY TYP.) / D.B. PG. - w _ G - -6 f - �3, LOT \ �� zl �,, �'Ln 233 �32 LOT io' PRIVATE,PR(- / j l/ / / /, i S / 23 186 3 j44 I m „ " m 1 3 DRAINAGE EASEMENT D.B. / 1 I m� m� m 2 O m D , PG. 14 r YD-gDPHASE III TIE-IN TO EXISTING STORM STRUCTURE G R=743.00 �6 \) - _ i m i -�� 229 / V A \ V AVy1 V i i / j \ L LOT s - - v / / i 7�a3 1_ _ _ LOT 3 - 743., -t- - � �� - _ FOUNDATION DRAIN SYSTEM RF zaA - �',1 fig. 2$ \ \ 220 tv \l g(° \\ PRIVATE - / \\ LOT _ _ - G R=742 33 ,.. 1 ° \ RF zi IFS 0° LOT \ \ LpT '1\0° ;� i RAINAGE EASEMENT - - - - - - - - w nNi n�i / 11 LOT E= d 7°h I o+oo PROPOSED 8"HDPE ROOF/ o 1 / \\ ,1 g 1 743 ° -_ -w-FOUNDATION DRAIN SYSTEM / Q''1 �G" 22 YD-8A \ \ \ 221 '1�' D.B. 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ZZx \ � .. \ QcYt. �?� o / \ \ S.. �� / ;� � o \ \� � / / MCCOMB jT TIE -INTO EXISTING STORM STRUCTURE r l / � \ \ \ \ \ I--- s° /lo ,13 LOT / RE T - - i > \ — 17-2-6- z I 190 - : • . • N M 56' UBLIC STREET / / \ \ \ dD - - = PROPOSED 8"HDPE ROOF/ � -' 3 , PROPOSED 8"HDPE ROOF/ /. ��� ,,13 22 / / ^ \\ D Z / ` \ / i G R=739.$3 Lu FOUNDATION DRAIN SYSTEM , - , • FOUNDATION DRAIN I I I LOT FE= o. 0 7% 13 .. ..�-•. . •, .', . • . •, . •. •.. - . • � flo � \ L / � � � w� ^� ^� ^� � .mod RF-zz. • �� > RF-zzA � �� �\ / o i 74 q `134. 74 '. \ OT D 8 L ^ ^� oo ± -- - \ /i C'7 v I 191 $ io' PRIVAT R INAGE EASEMENT' \� �Q .,\'' y 223 / /'%j, • t \ /j�' N\7/ M n _ \ \ 2x0 \ �. p1� ,�� / / `.'l, — Mom, C) I I G R=738 oo a N D.B._, PG. \ y o �o Q ,13�' / \ LCh fit' o RF-z3 > r °o. LOT N LOT I : 73 G N \ C zo' P IVATE DRAINAGE EASEMENT \ �M FE=Z3$. SPA �� ^� \ h Q / - _ PROPOSED DRAINAGES O /L ° .i \ 7 D.B. PG. o37 LO l i^ RF z A _ ° )' ' y 33 W YD_gB i 192 \ 67, �'_ S. .� ,T- �. \ 1 • '. B 9Q G� v o . \ <v q° ) 3 w o _ zo PRIVATE DRAINAGE EASEMENT , • , • , • . �•:. �� \\ / titi _ PROPOSED 8"HDPE ROOF/ 23 / �ro p 3 \ v \ z \ PG. r �% RF-zo FOUNDATION DRAIN SYSTEM / ' a m o a x) i • Co G R= I 6 �. O 9 LO 2 - I LOT 73733 � 13 :. .•.•.'.• ,. ,. .1. TO'P�. : •' y \ / � / F-Oxd�. y_cn - -•.o � y 2O \ / \ LOT 4 ° �' - " . ,o S 9 / zo' PUBLI DRAINAGE EASEMENT vi z F N N o ) LOT .. T FE-738.bo OPf=A1 .. \ c ° FT \ / 239 / u 2 ° s Q 1 \ PG. N N 34 O SfJA�E.A. zo' PUBLIC:' • z6 / / \ / ° w 3 N w 346- L T W DRAINAGE EASEMENT \ . J so \_ / _ \ 40 )y LQT- z45 EX-i6 N G R�737 33 o . ' . 3$ 'f `✓.48.9.` .\� / Y - - 4� V 7 r+i I I 1 � ,n � : • -z •'. • . • D.B. PG. � ay / � %•' / / � I N > > m: � � . � LC W N y YD- A LOT FE=73 ° o I I ROPOSED DRAINAGE SYSTEM, -: • \ `. \ 22 o. �/ / RF-i6 y / a L T = _ - 24 �44 lo' PRIVATE g 194 \ RF 18 xh / / PRIVATEi - - 242 RAINAGE EASEMENT z 3 Q /PROPOSED z2" HDPE 2R z41 X-5o ,D.B. PG. , - - 9 i , , -', • '. •'.' `.' ` Q' \ DRAINAGE EASEMENT--� 1 I T IN i FOUNDATION DRAIDN SYSOTEM. 24 \, LLI ... I _ • . • '. • '. • . • '. • .�'. �`/ o / LOT •• �' - a 5 J Q I : '. - EM ..._ � ,� • i6F PROPOSED VDOT STD. CD-i . • . • . • . • .. �. •:. •. • '. • `. • ' °o / AR - �� So ,�•. ' \ ",\ DRA SYSTEM •�•• io' PRIVATE DRAINAGE EASEMENT \ �` PROPOSED 20' PUBLICS%'i. DRAINAGE EASEMENT :\ ;rv� G LQ // / // / - o .�RAC@.6' ' M D.B. PG. ? - i n%' // t \ r \ z o - _ L zo' PRIVATE DRAINAGE EASEMENT _ + 5 _ o.p6 - - - LU D.B.PG. Zz ti y5 22 LLI z +oLOT o - - MCA 7 REPLACE EX STING DITOP / V) - - �'A'' • � A GI AR} =M�737_'�• I -- - VS I GA_R} =�-n _6. _7- \ - •5. ` . <LL •` ``'-.- ` . " . •. •, A. - -'``*•` `' s :..•---:- 11//... _ �_ _�_�n, z:I "*S. o \s -M�-�_� \ \`\�. 2� z* °�•,`.'a` :-' a- '`� ' i8• � z1O'. ,"' zo y�'x�� / P�/R`OPOS�ED / % /�/ G s- / //���- -" '�L6zy � 6�/1vm'/ /� ' /� </ -/-/ - i RWE� IPTXLHA5N2CEEW EXMzDISoA.TB'NPI. NHR5GaOIV6LDAyE,ITTTPEIGOD.PRzSSA97INALGOLEOT EATSE-ME-NT - I- WJY z 7 ^2z+ooQ COT- _ —� Ft' 73 8.o FFE= 7373 . \, • . `� . / a 4 �� o - >* 9 / i 6z/ � of �/ / - C �{ / i6 N� 106PROPOSED 8" HDPE ROOF/ VDOT STD. CD-i STEM�,x �. A6 n SMT=7z .ir BSMT=7 0 l 1, • ` : " `. ` `. f•_ ( M // / / ti / 55 - TIE -INTO EXISTING STORM STRUCTURE - LLI V I �` • `/" ` I - / PHASE 11 / - - PROPOSED TE HDPE YARD DRA SYSTEM // - - - _ - - - - -- I _ F- / 13: ; I N / I 7 w/ zo' PRIVATE EASEMENT (TYP.) _ / / I — I II _ U--I Z D.B. J PG. / Q \ 6 v \ '.. /RF-1 /��� \ LOT I i i' - LbT - LOT : NOTE: CONTRACTOR SHALL ENSURE EDGE -DRAIN PIPES ARE \ ° \) \ / / 54 / / z6 / — 1 / 1 (n 7 8 \ INSTALLED AND STABILIZED UNDER A MINIMUM OF y' OF AGGREGATE �� o- - / zo' PRIVATE DRAINAGE EASEMENT // 1 \ _ I' - 6PRul EVENT CRUSHING DURING THE CONSTRUCTION PROCESS. / _ -- - - No %, // //� YD iA 10T /// I \ I /II / -_I -- LOT / / 1 / / - - - - - - W / 74 - - - / - 12 zV CD z � - - - ATE PHASE II PROPOSEDVDOTSTD.CD-i, o° PROPOSED DOT STD./ '✓l °x N : / BREACH z LOT/ / / --- �/ i U 0 Bl G 2 / r ' J��QQ x` / / / / I 1 I - U) W 7� 6 y / /> / —5— " / 6 73 LOT _ $ 4g,R / r M e / %°off g LOT - - / do �- / W i 51 / ti ' / _ / h LLJ - '.LL` �•� : T \� , J� \ % / 7z - �sxsO LOT - - S / \ / PHASE / L (j A � M �/ IEc NOTE: VDOT WILL ONLY MAINTAIN WITHIN DRAINAGE EASEMENTS TO THE x 29 �/ _EXTENT NECESSARY TO PROTECT THE ROADWAY FROM FLOODING OR DAMAGE. / 9xoo M y LOT �i 20 / i ry"� \ O �o / O 720 n // / // 30 / i �� % �� T\ / 0N .,i_i. �_•'�BxSO v Lu � F w V ` ` • ': • '. • - .� . . • v / � / � 7/���� — c' - �� 31LOT LOT /j // 4 ° 6� LOT / / 22Lu �69 � LOT V i a ioo'WPO BUFFER (TYP 32 s�T 23 a 1xn ,To 8x° v �/ 24 V I JOB NO. VDOT STD. CD \ o / n A 30A 15 60 20 PROPOSED \ \ / \ ,� ' 182154 68 / i / . \ \ • . � \ 1 LOT SCALE PROJECT BOUNDARY(TYP) 44 1 = O _ � " .� _- S ti � � /1 A / / '• � - ( IN FEET ) \ . _ ,, � 3 SLOPES STEEPER THAN 3a SHALL BE PLANTED WITH NATIVE STEEP SLOPE MIX J^ \ MATCHLIN \, \ / / \ \ \ 1 i Ach = 3o ft. j / SHEET N0. WITH ANNUAL RYEGRASS BY ERNST CONSERVATION SEEDS AT RATE OF I......��. LOT _ 6o LBS. PER ACRE, OR i LB PER i,000 SF, UNLESS SPECIFIED OTHERWISE (TYP.) �OEE SH ET 13 \ / \ S° \ % S / / LO.T 11 SLOPES STEEPER THAN 3:1 SHALL BE PLANTED WITH NATIVE STEEP SLOPE MIX - - _ - - - - TH 0 WITH ANNUAL RYEGRASS BY ERNST CONSERVATION SEEDS AT RATE OF NOTE: VDOT WILL ONLY MAINTAIN WITHIN DRAINAGE EASEMENTS TO THE - - 6o LBS. PER ACRE OR i LB PER 1 000 SF UNLESS SPECIFIED OTHERWISE (TYP.) / �� EXTENT NECESSARY TO PROTECT THE ROADWAY FROM FLOODING OR DAMAGE. - - - / /io' PRIVATE DRAINAGE EASEMENT / " - L / �4 �� D.B. PG. / / - - ----- SC SZ YD-4B ROJECT BOUNDARY (TYP.) - _ - / U o. 5 -. / W. - ' w ;� : �. _ w w w w w w w---------- w------ - _ .oho N7/29/2 �4 ;_- . . . . . . . . FEIV- - IV _ _ ' - PROPOSED $"HDPE ROOF/ I FOUNDATION DRAIN SYSTEM - - - - - - -- _ �-� -w, - - - .�Aa1 1 . •YD-yD i 7573 `� - I / LOT I j. 54 75 u>� - 6 LOT - - k LOT 52 SP CE 5 1 .� . • , •' '° 666 7 - SLOPES •t LOT 1 1 I �'. _ i WI HAN ;. •. ;. ` 'Z \ LOT/ 1 0 5 l� . (n g�qC� ': - MCCOMBpSTREET T - 60 LBS. P 0 \ \ LOT 1 3.49 -^ -^ �..' PUBLIC ROAD 56' R W - - - ,• - ' - l/ i i LOT 1 T mD 11 7° J 11 •'f D.B. PG. M---_ - _ - '!- - / M M - - / M- CJ YD-yE J 1 6 n m D ^ A J J v u - + - - PROPOSED 8"HDPE ROOF/ WALL MAINTENANCE EASEMENT \ LO 4 \\\ \\ .67 R,� A J J � �, � � - I .�•`^ -� •- �' M _ �I- _ M � I_ Cp n v z5+00' 'LL FOUNDATION DRAIN SYSTEMzz+ o D.B. , PG. 5933 LOT 45 y \\ \\ J v ° u / " zS+So 66 z4+50 T i T zj+00 5 z - i// 3 �3+5° X 3z z � \ 44 y� 6 U \ w ° 1��� _ lo'PRIVATE 16+pO /, y zx � LOT �4 / 0 11 m� ma RAINAGE EASEMENT / .,. 5 _ 0 _ lo' PRIVATE U 764 TW LC1T �42 c� P m u, d D.B. PG. / / . • ¢ 76o BW w YD 4 - Mii DRAINAGE EASEMENT' LOT �41- PROPOSED WALL - - ?� ° ��' m // `°^ u m r + - - -1N TO EXISTI Z � (MAX. 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PG. b/ 3 o / I 3 w � ----I _ I I � / o +5° w 11 U - I _ 00 _ - - - - - zo' PUBLIC DRAINAGE EASEMENT w I PHASE III o _ _ _Ln M z9 44 CLING LANE �\ :.�' - � Tc� T �'� -�v - I----_ �17 �J �J I X°J°� \ So' PUBLIC RIW ° �' �p0�p0 ° u ° = m 75z lo' PRIVATE YARD DRAIN SYSTDEM D.B.z6y��7 / w O+Oo 6 + 6 \.B. 4 #�.= N „ u „ ,, 1 °,� °° J I I DRAINAGE EASEMENT 70 ••70 / I I � � •° \ RF-14A G� rrfA J J u, �' °' a, ' ° LOT G RF-1 A 5 5 YD-11 746�p� b _ - \ ;�7A 30+50- O G G D u 11 v oo ° 0 161 7 I o D.B. PG. - - - %° o , LQT � - - � - -TIE-INTO EXISTIN 1+1c32+oo - - \ W \ 11 J^ v �o J p J 160 I - - O - h - _ -a>� I o 74z - - - LOT ° o PROPOSED 159 PROPOSED lz" HDPE + 75 749 5 _ - - - - - - - LOT 1 158 IYARI R, SS M L 3 /j -7 - 46.0o~� _ _1 � �-�/o�Av \ w LOT --- _ h O G1 J / S] � � � G R- O � _ RF-5A a O y \ 155 /�56 PROPOSED 8" HDPE ROOF/ 370 LOT ,I LOT G R 747 ° lo' PRIVATE FOUNDATION DRAIN SYSTEM FE=747.6fJ I " I B - / LOT =75 3 1 \ A- - DRAINAGE EASEMENT I 20CI lo' PRIVATE 1$ ROP05ED DRAINAGE SYSTEM / P EXISTING lz" CMP I53 I - - - - - - / 3 CULVERT TO REMAIN / I 139 E=758.� T PROPOSED 8" HDPE'ROOF/ - D.B. PG. -DRAINAGE EASEMENT 5 LOT I \ \ \ s Y 1 \\ I 756 34D 34B f AR=749 7 / G R 7 I- I 2 LOT LOT 737 3^ N N + FOUNDATION DRAIN SYSTEM 145.67 4+0/ FEE= o. LO G. o� _ 2 LOT LOT �\ - - lo' PRIVATE 75 33 B - LQT 5 2 33 io' PRIVATE, w N N / I LOIN 757-�3 - - FE=746 33 232 LOTS ! -zE RAINAGE EASEMENT YD-io 4 203 / 1$6 3 744 m „ " ,i 231 DRAINAGE EASEMENT ! \ o N N / 25 / lo' PRIVATE 13 i.6 - D.B. PG. - S / I I u A m D m D „ 230 \ \ 8�� - - _ L - o G �R= m D m D.B. , PG. 736 50 \ n n DRAINAASEMENT AR=75 / o I zB RF-6B 752 74 / - 74 4_ - w� / D.B. PG. FE= 4 + 5 F E= o to r / LOT 7 YD-zD RF-z5A S N 749 /LOT y LOT E=745 4 6 I 3 0 w m _ b° o u w z _�� _ - - PROPOSED 8"HDPE ROOF/ ) I LOT 4 I I / 202 I � I 18 ° � / 11 3-37 4 FOUNDATION DRAIN SYSTEM GAR= 6.6 YD- D - + °a > 1O � / L 5. / PROPOSED 8" HDPE ROOF/ LOT Cn46I°O 162 3 OF/ g I N I i i 'c ° / / \ o PROPOSED 8"HDPE RO OT G R=75533 7%I 4z r F E=747 3 - FOUNDATION DRAIN SYSTEM 747 zo / G R=743.00 zN / FOUNDATION DRAIN SYSTEM- E=7 GEAR-75y.o �76 AR= 7 FF -f47 7 LOT / LOT 5 - _ - _ la - o 22g / J' 75 .00 L9 LOT 4°'o EE- 746 6 n 743 33 FE=743 67 L 3 _ - - _ io RF-zoA w / YD-3D + - RF-554 7- - - I LC1T E=7473 7�1 3 1 II / PROPOSED 8"HDPE ROOF/ - - �1' o LOT O tr �- - - I I 201 / I 188 U- w / I - ? 75 16 3.o' PRIVATE DRAINAGE EASEMENT - - RF-uA - - - ,1 U-2 /� I i � _ "- � LOT I 11 3 i - - - - � .' FOUNDATION DRAIN SYSTEM /I / � QQ- 13 22$ w In / PROJECT BOUNDARY (TYP. ---h i I- - _ _ AR= z 6 D.B. PG. G�R=745 7 / G R=74z 33 _ l I ° \ RF-zi I / F� �o° L ~ G v - ¢ LJ - I / I GT - / 75 � � i - I I 1 w / � � I - RF 4A 4 E=753� �75 I I LOT G R=743 �` , I o 3 - i, F E-74633 ,LOT IE=743.do �o \ ..6.1 CC In / / I - - - - - - FE= 6.0o RF-1 I PROPOSED 8" HDPE ROOF/ M G / lo' PRIVATE DRAINAGE EASEMENT- I, ' ° PROPOSED VDOT STD. CD-1 I YD-zC i6 74 + 7 200 I / I 189 %!FO w-FOUNDATION DRAMEM' / g �1� 10 Q D.B. PG. I I LQT LOT I 4 "+ 43 °0 743 33 43:0o RF 19 . I o \ _ w 74 \ �� I = 3 0 lo' PRI ATE I l0+50 0 .,1'° N z / PROPOSED lz" HDPE ��^, 135 =7536� RAINAGE EASEMENT R=75z'o 174 I I 3 33 AR=744 - - - - - - - 7 96 3 * V A i 6 �Q RF-16A i " l+ wLu io' PRIVATE i ID.B. PG. FEE=75z 7 - LOT FE=744 6 - 34 - - - PROPOSED lz" HDPE I �- - - - 68 0 \ / M DRAINAGE EASEMENT YARD DRAIN SYSTEM Yp_3C �� Ri7 - / D.B. PG. YD- E 7 .00 A LOT 51 1�o LOT 1165�=744 0 3 LOT RAIN SYSTEM I 3967 I LOT 7I G R 74 .00 RF 18A 3 - ° + AR=75o.6 ." io' PRIVATE DRAINAGE EASEMENT I E=740�7 6�0 _ _ ayx�0 w N YD- F 753 oo r 134 E=75z I 1, u " .. I o 173 R=743`33 , .In - - _ \ - Q / 3 7 4 " 3 FE=751 3 I I 8 D.B. PG. 399 I 190 O II r LQT E-744.bo - - 23.2 _ PROPOSED 8" HDPE ROOF/'•. O (" AIR=74z o PROPOSED 8"HDPE ROOF/ �\ N Z L�PROPOSED iz" HDPE-- / 166 o 3 3�° F�=7�1. 7 LOT I I LQT FE=-7o9 03 70 13 FOUNDATION DRAIN SYSTEM : FOUNDATION DRAIN SYSTEM N 172 YARD DRAIN SYSTEM G & �4z.6 + f`• ' ,�� 74 Q J / - - -I 3� FE1= 0.6 aoo E_ 8 N T 3 1 $ - ^ I i 1 1 0 lo' PRIVATE DRAINAGE EASEMENT' \ ? PROPOSED 8"HDPE ROOF/ 75 LOT 9 w 9 ° \r > 6 PROPOSED 8" HIDPE ROOF/ YD-zB 1 / -743 33 3 / 75 _ FOUNDATION DRAIN SYSTEM OT I I LOT 67 x AR=75 3 5° _ _ LOT � 0 3 E= z.o -r G R=738 00 � tiG LOT LO 1 O I 132 F E= l.00 FOUNDATION DRAIN SYSTEM �+ 74 LOT 1 3 75 II II I If GAR=75o.o / 737. __ 38.� D B , P.. - . \ � 0 7 - 9 1]1 / G R= PROPOSED 8 "HDPE ROOF/ oo �'� FE= SP�O I ' :PROPOSED DRAINAGE SYSTE 73 / 06, W Q L 74� 33 1 i 1 2 �� • O /� J Q ] ^ c� ^ R=75a -o S FFIE=75o - LOT E_ �'. �. e q G O 'LOT LOT 12 128 v + + �{i.00 FOUNDATION DRAIN SYSTEM' - , lo' PRIVATE DRAINAGE EASEMENT 'T �L I 2f1- T� m m :a I �LCar E=7 1. u o II GAR= I N I� /G�II I I I I ° R=74o 67 � � 3 •' �' ' ly�iC' J` L D n ❑ u I " 40 -o _ 749 33 - _ v i 1C8 /lo' PRIVATE DRAINAGE EASEMENT I ~°/u G R= 6 D.B. PG. �O 1 T 12 m �, 1 I RF- /o LOT i _ I 737 33 •�.�• � i 12 m A A J I T O 'p 74 •� 3 4 11 11 11 ,>� W � o I 1 1 / •• 7 I _ D.B. PG. 33 LOf I LOT 4� � � ,� y q cc 0 m u 3 FE=7 8. �P.N n I _ - - - - 1 ° RF-6 170 YD-zA 8�/0 / 1 6 ?93 3 Ibo , . `O tc -n G� rrl 11 z I *i v, v,+ / o I L - LOT E=74z.bo 36 -0 9 / - ' . 16D �' ' �S'PA'CE.,4. zo' PUBLIC \ G 9� , W L.L LL.I �^ A Ji b - - 3 4°33 1 i + G(aR�/4o.00 _ •� DRAINAGE EASEMENT f� - v I I I `"`��'. ow RF-7 YD-A5 3T i� � -.I ,' .-..- '' I •• `/ -• ,''�/ �S° � � 1 J - s J o - - - - ROPOSED VDOT STD. CD-z - - _ - 69 3°� F E o. / 'I "I G R.737 33 0 3$ _ 1".4$9 �E1 ' D.B. PG. _ , PROPOSED 8 HDPE ROOFI 74 7 LOT . I-Q� _ 1 �' A 40B 5 � FOUNDATION DRAIN SYSTEM 3S I / YD-gA 1 N I M'.�; : _ •'�' � • z O FE 7 0 7 ° ROPOSED DRAINAGE SYSTE RAMBLIN \ 7 ! ` :.L9 - 3 RF 18 I .� 7 A . _ OI( LA E _ RF-15 73633 YD-g z �N -� s• PROPOSED 12" HDPE / PUBLIC Z to PRIVATE M Sa, � °o-M o D.B. (49 R/W) - 3zB � - - - - - - - � . i:• .• � � '_• • 7z 1 � Q N DRAINAGE EASEMENT _YARD DRAIN SYSTEM / / �.� . M IPRUP05ED 8 HDPE ROOF/ �'. D.B. PG: M� i "_ - ___-_ z 0 z + o- �7 / z8 z6+5o w \ 30 �� - i =L= FOUNDATION DRAIN SYSTEM •• " F i6F; • PROPOSED VDOT STD; CD-i' ,.4h 7 5 / z6+00 ---I- - z + -i= to PRIVATE DRAINAGE EASEMENT \ _ Y PROPOSED zo' PUBLIC: I U 4 zg+oo 49 zg \ / z + 36g 5 0o M D.B. PG. - -DRAINAGE EASEMENT ;;N __xx o° D.B. PG. nmf ' N W •; SWM FACILITY & MAINTENANCE w ,, nn ' V '.PROPOSED 6' WIDE _EASEMENT= D.B. PG. z4+o 13 \ z3+0 _ 1' A \ zz+ o- \ :: / REVERSE SLOPE i / o 0 OPOSED DRAINAGE SYSTEMI - - / > i :' i - _ y i. � ,., � � DRAINAGE BENCH I ��, - I / .. z - - I o - / I / •. .I I y }a+ � � S_ - >• 3z .'�` \ to _ -�.� . Q o 75O.50 i I = - - _ I- ' PROPOSED DRAINAGE SYSTEM _ S _ _ 5 - s - z W DO /I I T-7 �6 FFE-746d AR-743 I a- 0 SMT=73 .5o f FEE-744 AR- 1. I m - }ten -- - - - \ - - ° 7z �- -Z4-3 I I IT,, / /I " � � ' '. � • %h A -755 67 I=7�4-8 \ 7 z BSMT=74 z5 I I I j4z.83 I GAR- BSMT=74 .00=737_ GA_R= 6. 7 �" - `. -757 / I =756 33 6 LOl` y -73 7 Z3- 7 GAR J3Z L LL �_� ".4 zo' o (n I..I..I �• 7 a5_ �3J . I - I FE=7393 FF �. • `. - °o E=758p I 61T=746.So I -,LO� / / � 8 LOT � - R=74o. 0 738 7383 �-- 75 / LOT 3- r 7 533 BSMT=7z .5o I I / 76 \ - T LL6 SMT 748. 7 / - - 7 y 8 / - ' z34• 82 7 6 LOB = 61 MT=7z o SMT=7z .27 BSMT=7 0 l l - • ' /, . • " ; %- 1 . al. 't3 SWM FACILITY & MAINTENANCE 7 4 LOT BSMT=73o.83 I / i " e l LL : // �M ° izBLu So LOT I 1 86 J I(I \I \ EASEMENT - D.B. , PG. YD-5 ' yp SA 81 LOT / / / / / \ / - I f / / / _ _ xsO - � 0 I I PROPOSED WALL T I I 7 z I /LOT NOTE CONTRACTOR SHALL ENSURE EDGE -DRAIN PIPES ARE y 3 1 ° LO/T �7 I I � , � /I I � . -4 , ; . � I I I _ 79 I � LOT 7 ° / LbT - LOT '.• y •� � 1, � �, � � LOTz 7 I I (MAX. HT. = 6') T2 ROPOSED iz" YARD DRAIN SYSTE I -- - / ]] / \ 7 8 \ INSTALLED AND STABILIZED UNDER A MINIMUM OF y" OF AGGREGATE �; oo- J Q $ WALL MAINTENANCE EASEMENT I o '- �_- - L I I I 6 TO PREVENT CRUSHING DURING THE CONSTRUCTION PROCESS. _ - ti o ' $ I L Ili A � I I NOTE: CONTRACTOR SHALL ENSURE EDGE -DRAIN PIPES ARE � LOT / / lz ti � ( Z 9 B. - ' PG. 736 733TV/ 205 \ 734 WALL MAINTENANCE EASEMENT _ _- - -- _ INSTALLEDAND STABILIZED UNDER AMINIMUM OF4'"OF AGGREGATE PHASE III y �• 4. _ o D.B. PG. - ILL• ' - . O O Q / o \ � TO PREVENT CRUSHING DURING THE CONSTRUCTION PROCESS. � I . ' -'\" • \ • • ''\•/' • �/ � ! PROPOSED VDOT STD. CD-1, � � � � °x°' _ eylu 732 \� � - •./''�/.�. � // LOT/ - ? - / ee( - >741jW / 734 � � . 'f )2 I', • ' \ � � � ` 7z8 �. � - 7cMyo- 7 \ z a Q Lu - / 742 735 r i - - - - - -- ✓ : {� f \. \ \ PROPOSED WALL•. .\' ���� '� / / / \ - - �\ l / / - / / A /9' / -(MAX.HT.=4') - - _ - / 7zo r - r / LOT / ado / Q/ " PROPOSED WALL \ -�- `" .. (MAX. HT. - 6') / I \ I j / - - - �' / - J/ / // 72 - WITHNATIVE \ I 3' i = le _ w , • ' � � PROPOSED UNDERGROUND STORMWATER MANAGEMENT WITH ANNUAL RYEGRASS BY ERNST CONSERVATION SEEDS AT) RATE OF i �'� _ - - " / i � - / � o i f (MAX. HT. = 6') \I �\ '/ 24 - f FACILITY'C' - SEE VSMP PLAN FOR DETAILS 60LBS. PER ACRE, OR:L LB PER i,000 SF, UNLESS SPECIFIED OTHERWISE (TYPJ _ • : • t ". / / a In �. i (WPO2oz000053)� / LOT / // JOB NO. I (.182154 / // 1 -y / -- - -- /% SWIM FACILITY & 0 Lu SEE VSMP PLAN (WP0202000053) \ `MAINTENANCE EASEMENT --- _ ` J w _ ; • ,�`� - 7zo / / / SCALE - - - / LIMITS OFSUNNY - FOR SWM OUTFACE DESIGN \ - _ \ Q.D.B. PG. U - \ \ / / - ' / 1" - O' - - ---.- -- LOP j / / -3 DAY DAM BREACH I loo-YEAR FLOODPLAIN (TYP.) ! - ' I- w :" } / -car o o . - \ _ n FEET - Q-w - �. \ / // 70 / / � O _... - � � r ___ _ _ - _ "�_"Cr .';.-' .' SHEET NO. 30, fL. _ Vl •�- /. i / /' / / / / � � .� Tr �o ,-' --_- : -� �� `�7� \ �---' ---- � - - - - --- - --__ •-." •LLB-` _ � ^ �i // 12 -OPEMIXvvv vvv v r RATE OF \ LOTSE (TYP )1 \ EE SHEET ii \ \ 1o8% 6� \ \ / \ \ \ PROPOSED zi PUBLIC / / \ 1 - - - - / / - / - \—w \ 4» "' / DRAINAGE EASEMENT, - - 1 \ / o \ // - - - SCOTT R. CbLLINS Z D.B. � PG. / / - - - - - - - 1 — - \ — w \ \ - — No. 35791 a w LOT / w 7/29/22 ,0 70 \\\ \ \ O O O \\ \\� \\ \\/ //// \65 % J i \ �� �" v / \ o- I w En \< w � / I Lu w Ln PROPOSED SWM FACILITY & \• / / - - / / / / c`�� - - - �� O \ \ MAINTENANCE EASEMENT \ \` " ` j j \ \I /' \ �`. • \ / / // PRO z YARD DRAIN SYSTE / _I a5 of / z `\ 1 PO S �1 o £ POSED i " \ \ \ \ \ \ \ \ - \ LIMITS OF PMF 1 \ \ I - - ' - I / / / YD-3G O VAR. WIDTH SWM FACILITY &' ;; '� / - EXISTING SANITARY SEWER MANHOLE (MH-EX-iz) / / - v m ✓ O \ ""c'� MAINTENANCE EASEMENT \ '• • +_�'.\ / DAM BREACH \ \ - - - - io' PRIVATE DRAINAGE EASEMENT '757.0o H w z \ RIM TO BE RAISED FROM TO 6o.zLn D.B. PG. \ \> ' + \` e•\' " / EX. INV. IN= EX. INV. OUT= 6 D.B. PG. U O \ '. \ •�, \ G + "\ "• + 747J3, 747 5 N £ z +\ \ io' PRIVATE DRAINAGE EASEMENT / - - , -758 6 / / Ln z � \ \ PROPOSE NDERGROUND STORMWATER MANAGEMENT / \'. •; / . �. ` \ I D.B. , PG. / 7 S / / ,j w .. i SLOPES STEEPER THAN :1 SHALL BE PLANTED WITH NATIVE STEEP SLOPE MIX x - \ \ / FACILITY'D' - SEE VSMP PLAN FOR DETAILS (WP0202000053) 3 S / - - W m WITH ANNUAL RYEGRASS BY ERNST CONSERVATION SEEDS AT A RATE OF PROPOSED lz" YARD DRAIN SYSTEM / / / o / i - ^/ a \ \ \ ��� \\ \ ° \ ` f• LL f\ - » ' 6o LBS. PER ACRE, OR 2 LB PER i,000 SF, UNLESS SPECIFIED OTHERWISE (TYP.) \ \ / / / / 1 ��io' PRIVATE DRAINAGE EASEMENT ce SWM FACILITY' \ \ \ - - - - / / r LOT w / + 1 758.00i a Y &MAINTENANCE EASEMENT \ O � 0 � " " � / / \� - -T - \ - - _ I � PROJECT BOUNDARY (TYP.) �' �� �� � �+ D.B. PG. L \ \ ° \ \ \ / % + + + " \` io' PRIVATE DRAINAGE EASEMENT I \ \ I / /LOT / LO / 12 Ow \ O \ \ \ / \ `�,., D.B. , PG. / `d \ / + _y YD-6D - LOT 122 3En + D.B. PG. \ \\ O A A\ \ \ O O O \ / - - ) \ /EXISTING SANITARY SEWERNHOLE MH-EX-ii v v �6a LOT/ SEE VSMP PLAN (WP0202000o53)/ / %�/ `+ • O 1 \ / RIM TO BE LOWERED FROM 76i.gzT0758.0 \ _ - YD-6C LOT 18 / \ \ FOR SWM OUTFACE DESIGN �. - j " / / EX. INV. IN=745 99, EX. INV. OUT=745.82 / 1 .I 756.67 i r PROPOSED 12" YARD DRAIN SYSTEM _ 'YD-66 LOT LOT 11 c m o % Wo.i; W r 7 ' � / \ zo' PUBLIC DRAINAGE EASEMENT 6o LOT 3.12 D.B. PG. LOT \ 111 y A v \ PROPOSED 8 HDPE ROOF/ FOUNDATION DRAIN SYSTEM LUnNi nNi / •'�•' S-5 / � 1O9 � \ tP � � l�D �•O � / :, ' .. a+OO LOT 10�` mA \ m °f�4 �y / �3. n n LOT 107 m TC \ \ €7 o o zo' PRIVATE DRAINAGE EASEMENT / / / // / \ / / }5{� S,�! ➢�4\Sa. `LOT _LOT 106 i _ , / D.B. PG. /- / / = 6oD 301107E m A _ m $ • . RF-i \ Mai / / \ / / / / / / / i• ` /� LOT 1O5 m m A uo� iW m ro . RF-u /M Wl 30+50 +•,.• �� u v v o OApA / _ _ �' PROPOSEDB"HDPE ROOF% R - / / • ` : ' • ' • ' • = _ - m � _ "m � '�% � FOUNDATION DRAIN SYSTEML9 o Pp8 % -5- SWM FACILITY & MAINTENANCE / / - 75 - - - _ __ - - _ 0 w , - / EASEMENT- D.B. PG. % j�� -'✓ ✓�' / ' / - ` , °- 4A �AMgUNG R < y1 GEAR=ZS + o ,X / / / / / • ' •5. �_ - ' -� / � -/ / M \ �� �� •PROPOSED 8"HDPE ROOF/ ,_ - 32+0 _ , , /S � � \ • I Z r�- -' `, • �% / ' G R=758.po S TB - FOUNDATION DRAIN SYSTEM - 760. o / 6¢B . LO V t� •f . FF = 8. \M 754.67 _ _ y/` _\ 44 - - - a S,/ GAS, oo / _ / N 'k° 75 _so PRIVATE DRAINAGE EASEMENT 2+5 T-75 7 4 5 rFE= BSM \ / / / \ / / / / / / / . %. • � � / '� / / \ / 102� / X 75 js�T� _ - -� - - / 6oB RF-izA ' D.B. � PG. 3 - , 6 -x� ,� \ \ yA�S .67 7 8 \ BSMT594 / // / / \ / // / ,��- .•�.`` '• _.��—�\ ,� I,/jT7oo � � M � 33+00 \ LOy I 89 PROPOSED DRAINAGE SYSTEM 1 M5�37T� / \� \ G%>g 35 \ BSMT= 50 �O ( �0 / ( _ O �� / / / % • ' \ / / / ' r �0 A O /�/ / i•'_` %;" --- / \� /� / 1 = - - —\ �6--� — — LOT \ // \\//\ / N /G R N yo - f =758.� �� - 34 \ GARS - L.Q f - 9 - \ / \ qz ' PUBLIC DRAINAGE EASEMENT ., ' \ �� = - \ \ / I Q /'� \ '• ••�. • ••/ . � LOT 1 4 a 6 , - - fFE-7s7. � SWM FACILITY &MAINTENANCE \ / / D.B. PG. 34+5 - - - - = 6 \ \ - \ 93 \ \ \ / r / + < 1017� A BSMT an LOT — \ - �- •`�- _ •',• � /-EASEMENT-D.B. PG. \ / � /' ._�• � _ � = _ \ \ - - -� 1 .. -LOT- PROPOSED \ ' -•' . - , '� �. '' \ . \\ cam- ..� \ %COI/ r i 1 - - \ - - / / / I '� ST RMWATER �4� \ � / . .. , \ �-.� � � 1 GAIN 4 - 477 � �� -. •• - MANAGEMENTFACILITY'B'- \ � \ �' -, 757�33 r 1 LOT _ � \\✓ J � -1 1 FE=756. o ---- � \ \ --�_ \ ---�+. -;�- / (n \ \ \ \ \ SEE VSMP PLAN FOR DETAILS-, /r� // I FF-758.00 \ 1 1 \ / - �, W .P v rii. --753:42 BSMT .6g -� �` \ -- A �� `•'!•--+/-.• •( %. (WP0202000053) V -- �:A • LOT / / / 5 56 . f 1- - LOT \ V A\ _ \ - _ 744 \ �� �/� ��� ;a;:•% 100tw v v /'� \ �• m /— A V A r / vy\V:A. 74P \ \ \ �,\ \' \ _�• } / LOT �98 744 742 4- _ S*A -. ' 3'7- Q +, 99 1 WALL MAINTENANCE U / \ . • 74 • - LU z,- - / ./// (MAAX..HT.=6') PR \ \ aoo' WPO BUFFER _ - - - \ 74 \ \ \ _'C . �k • ' / „%�..' SLOPES STEEPER THAN 3a SHALL BE PLANTED' \ r - 73 / n Cl)Ul - - - - - - - - ' r.c \ \� 1. // SWM FACILITY & \ \ \ v. /i / »„ \- \ \ WITH NATIVE STEEP SLOPE MIX WITH ANNUAL / r \ / \ \ f % • / MAINTENANCE EASEMENT \ /� / '' RYEGRASS BY ERNST CONSERVATION SEEDS AT L~ \�'A RATE OF 6o CBS. PER ACRE, OR i LB PER i,000 SF, \ /o \ \ / D.B. PG. _.,.,, i . ) \ \ \ \ \\ _ _ - - J / UNLESS SPECIFIED OTHERWISE (TYP.) \ / /+ \ »••l .,,� I / \ - / n! LU \ \ \ SWM FACILITY & MAINTENANCES / \, \ ` \ \ \\ EASEMENT - D.B. PG. _ / i / / / SWM FACILITY & MAINTENANCE \ . \ \ •, \ \ EASEMENT -D.B. PG. \ / \ / y,,.°.� - / SEE VSMP PLAN (WP0202000053 / " / / OPEN Spp( --�, uu O \ \ \ v \ \- / i / i FOR SWM OUTFACE DESIGN .,,_„_ / / O "1,,.;, / J »,. _ ,;. — / . / �o (WROBUFFER .,,.,,.....,,_,,.,, ! „ H \\ \ PROPOSED VDOT STD. ES-i & CLASS Ai RIPRAP LINED / _ _ - »„•" O O �'�, \\ \ \\ \ \ \ \ OUTLET OUTLET PROTECTION vv/FILTER FABRIC - / LIMITS OF SUNNY !� . - r ` / •" / // O O I O O J LL( // DAY DAM BREACH i i / / »,,._ ' // O O 2]�A O O 0 5. o 0 UNDERLAYMENT(L=zo', W2=6', Wz=2z', D=z.S') / i �'•�- �\ // / \, 'O O \ ,�'�, \\ \ \ \\ / \ // / / / - ✓ �,,._ Y, ,. _yam �.,,.,_,_, „ .,,�'' \ \ / O Q \„� A \V AAV A �/ v j / ! - ? / .,,_,,.,,:,L :�^»,.• i EXISTING STIR EA. Drainage Easement Chart Pipe No. Size (inches) Max Depth (feet) Easement Width Required (feet) Easement Width Provided (feet) 53 24 7.1 18.2 24 55 24 8.6 21.2 24 57 24 9.6 23.2 24 /_ v -Z- / °o \ \\\ \ o o o p / // __GRAPHIC SCALE \ _--\ / — \�1--------�---- 4 �. ao o 15 -ao so 1201 ao y \ °\ IN FEET 1 inch = 30/tt. _------ o O O N •\"` 1 ' ' / ° - - - -- _ ROJECT BOUNDARY (TYP.)/ \ - _ ioo-YEAR FLOODPLAIN z LU 0 LU Q 0 Q �Q J 6_L LU J Q zz i-1 Q LL- o 1 N 0 LU z Q Q LU LU (01 V z V ) LU w Lu Ln JOB NO. 182154 SCALE III = 30' SHEET NO. 13