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Home My WebLink AboutWPO202000053 Plan - VSMP 2021-02-02GENERAL NOTES OWNER: STANLEY MARTIN COMPANIES LLC 11710 PLAZA AMERICA DRIVE, SUITE 1100 RESTON, VIRGINIA 20190 DEVELOPER: STANLEY MARTIN HOMES 404 PEOPLE PLACE, SUITE 303 CHARLOTTESVILLE, VA 22911 ENGINEER: COLLINS ENGINEERING 200 GARRETT ST, SUITE K CHARLOTTESVILLE, VA 22902 (434) 293-3719 TAX MAP NO.: PHASE I 056A1-01-00-02900 (1349 AC) 05600-00-00-00700 (387 AC) PHASE Il 055CO-03-00-000AO (16.28 AC) 056A1-01-00-02600 (4.74 AC) PHASE III 056A1-01-00-02500 (1.85 AC) 056A1-01-00-029RO (3.11 AC) TOTAL AREA: 43.34 ACRES TOTAL AREA PHASE I = 17.36 ACRES TOTAL AREA PHASE ll = 21.02 ACRES TOTAL AREA PHASE Ill = 4.96 AC ZONING R-6 RESIDENTIAL, STANDARD LEVEL - CLUSTER DEVELOPMENT PROPOSED USE., SINGLE FAMILY RESIDENTIAL UNITS PRESERVED/MANAGED SLOPES THERE ARE COUNTY DEFINED PRESERVED AND MANAGED STEEP SLOPES WITHIN THE LIMITS OF THE PROPERTY, AS SHOWN ON SHEET 2. OFF -SITE PRESERVED AND MANAGED STEEP SLOPES HAVE ALSO BEEN SHOWN & LABELED ON THE EXIS77NG CONDITIONS SHEET. THIS PLAN DOES NOT PROPOSE TO IMPACT PRESERVED STEEP SLOPES. THE SMALL, ISOLATED MANAGED STEEP SLOPES LOCATED ON TMP 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 7HAT EXCEEDS 35' IN HEIGHT SHALL BE SEPARATED FROM ANY 07HER 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 INFORMATION 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 EXIS77NG VEGETATION: PAR77ALLY WOODED WITH (2) RESIDENCES ON THE PROPERTY AND EXIS77NG GRAVEL DRIVEWAYS. LIGHTING: NO STREET LIGHTING IS PROPOSED WI7H THE DEVELOPMENT. ALL PORCH LIGHTS MUST MEET THE REQUIREMENTS OF SECTION 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 TMP 56A-1-26). THE CEMETERY SHALL REMAIN AND WILL BE PRESERVED K17H THE DEVELOPMENT. STREAM BUFFERS: THE 100' STREAM BUFFERS SHOWN HEREON SHALL BE MANAGED IN ACCORDANCE K17H THE ALBEMARLE COUNTY WATER PR07ECTION 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 INFORMATIONAL PURPOSES ONLY WITH THIS SET. LANDSCAPING: STREET TREES SHALL BE PROPOSED WITH THE FINAL S17E PLAN ALONG THE NEIGHBORHOOD STREETS IN ACCORDANCE WITH ALBEMARLE COUNTY LANDSCAPING REQUIREMENTS SET FORTH IN SECTION 327.9 OF THE COUNTY CODE. TRASH: 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 II PROPOSED ROADWAYS & SIDEWALKS 121,175 SF PROPOSED RESIDENCES 132,140 SF PROPOSED DRIVEWAYS 35,280 SF TOTAL 288,595 SF (6.63 AC) PHASE III FUTURE 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 Il & III OF THE 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 SYSTEM's LEVEL SPREADERS ARE PROPOSED WITH THIS WPO PLAN TO MEET MINIMUM STORMWATER QUALITY REQUIREMENTS FOR PHASES ll AND Ill. ALSO, THERE IS A SURPLUS OF WATER QUALITY CREDIT THAT WILL BE APPLIED TO THE CONNECTOR ROAD VSMP PLAN ASSOCIATED WITH THIS DEVELOPMENT (WPO 201900027). LAND DISTURBANCE. PHASE I LIMITS OF DISTURBANCE = 1315 AC (WPO 201900003) PHASE I BORROW AREA=2.36 AC. (AMENDMENT #1 TO WPO 201900003) CONNECTOR ROAD LIMITS OF DISTURBANCE = 1.99 AC (WPO 201900027) PHASES ll & III LIMITS OF DISTURBANCE = 16.99 AC (THIS PLAN) OFFSI7E EASEMENT. ALL PROPOSED GRADING SHALL BE CONSTRUCTED ON SITE OR WITHIN EXISTING RIGHT-OF-WAY. NO OFFSI7E 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 THE PUBLIC STREETS 40' O.C. IN ACCORDANCE WITH VDOT AND ALBEMARLE COUNTY STANDARDS. 5) THIS PROPERTY IS NOT LOCATED WITHIN A DAM INUNDATION ZONE. PLEASANT GREEN PHASE II VSMP PLAN WP0202000053 WHITEHALL DISTRICT ALBEMARLE COUNTY, VIRGINIA i. ❑ _ \ Y. 1 , ❑ I ----------- ------ ---------------- Ll EXISTING RAILROAD -------- - - -- - _ x •. i a _-I- ._-.yam FUTURE _T= v❑ \ j \ 1 ! "•utt I PHASE III/Ap >1 s,�� PHASE I 1171 - i I � '\❑ \ - T - \ PHASE II F E PHASE III� V x _ , ,. \ - — / -_ � ✓ PRIVATE \ ❑ ❑'\ -- PHASE II I �' Y j , • ' PHASE II � � i I - I i i � ,� ;Xy; � � I �. �. PHASE I 1 I I ❑ i S i - , - i - ' I i \ t 01 I i i I II i I ❑ I \ i i :t \ 1 Ho x L_ .. _ I -- PEACH TREE I---____ J � - DRIVE - _ ----------- _ I ; i \ ORCHARD DRIVE—__ - Ix ❑" j 0 \ i --------- j i' ❑ ply - I \\ ❑O - - - ---- ----- - - --------------- i rr � - Q I 7 i SHEET LAYOUT SCALE: 1" = 150' LEGEND EROSION CONTROL PLAN/METRICS SAF SAFETY FENCE * 3.01 OP OUTLET PROTECTION 318 - EDGE OF PAVEMENT CURB 200 � PROPOSED CONTOUR SEDIMENT TRAP OR BASIN CRS ❑ CONSTRUCTION ROAD STABILIZATION J. RR RIPRAP 3.19 SOIL BOUNDARY BUILDING DRAINAGE DIVIDE CE CONSTRUCTION ENTRANCE 3.02 RR O unuTY STREAM CROSSING 325 -PROPOSED ASPHALT LIMITS OF CLEARING GRADING SF SILT FENCE 3.05 SAF TEMPORARY SEEDING 3.31 STREAM BANKS LIMITS OF DISTURBANCE DIVERSION DIKE aINLET PROTECTION 3.07 PS PERMANENT SEEDING 332 _ _ _ _ 100' WPO BUFFER _ PROPOSED EASEMENT, O RIGHT-OF-WAY DIVERSION O- TREE PR07ECT70N 8TEMPORARY 8 DIVERSION DIKE 3.09 O TREE PRESERVATION AND PR07EC77ON 338 ® VARIES WITH SHEET DRAINAGE PIPE SAFETY FENCE RWD TEMPORARY RIGHT-OF-WAY DIVERSION 3 11 DC DUST CONTROL 339 iii v BENCH MARK VDOT STANDARD STOP SIGN SILT FENCE PROPERTY LINE ST SB TEMPORARY SEDIMENT TRAP SEDIMENT BASIN 313 314 * VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK SPECIFICATION NUMBER ® PROPOSED HANDICAP PARKING SPACE STRIPING INLET PROTECTION OO OO OO OO PROPOSED CONCRETE OO OO 100 YR. FLOODPLAIN RIPRAP, OUTLET PR07ECTION OR CONSTRUC7ON ROAD - - -200 EXISTING CONTOUR STABILIZATION SCALE: 1" = 2000' ` LAUREL H /ILLS CROZET[Ell CROSSING GRAYROCK WAYLANDS 4VAYLAND PARK tI GRANT , SITE Starr Hill Breti Crozet z� eaa REA PARKSIDE VILLAGE Old Trail Golf Club Q ,MI PARK VIEW ❑ BROOKWO 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 8* *GRADING & DRAINAGE PLAN 9* *GRADING & DRAINAGE PLAN 10* *GRADING & DRAINAGE PLAN 25 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 THE HOUSES FOR A MINIMUM OF 10'. THESE SHEETS ALSO SHOW THE TOP & BOTTOM ELEVATIONS OF THE RETAINING WALLS. THESE THREE EXCERPTS HAVE BEEN TAKEN FROM THE SUBDIVISION PLAN AND THE FINAL APPROVAL OF THAT PLAN WILL DICTATE THE FINAL CONSTRUCTION GRADES. PROJECT NOTE: THIS PLAN MEETS MINIMUM SWM REQUIREMENTS FOR PHASES II & III AND MINIMUM ESC REQUIREMENTS FOR PHASE II & PHASE III's LOT GRADING. THE FINAL ESC PHASE FOR PHASE III OF PLEASANT GREEN WILL BE HANDLED UNDER A SEPARATE PLAN. 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. 0(�LLINS'Z No. 35791 7 1/29/21�i U Z z o r J a 0 U U m r r w J H z o a E c yr z W ` L F N N 0 N � rn M ® M 0' z N M � J N O ai / 1 N LL N C LU J Jcn _ LU LU In O LU 2 0-O > U I Y z LU w LU Ul U) W F-: ZLU`D 1 z JLU LU Q LU Q ^J^ O CV U w w JOB NO.� 182154 SCALE AS SHOWN SHEET NO. 1 ---- -- \ I \ ----__=-------------- -- , — — — — — — — — — — — ---------------- \ `-------- ____ "Ei i i i i RI I I I ID BEEFI CONNECTION TO PUBLIC STREET PROPOSED UNDER — llll STIN GR llllllllllllllllllllllllllllllllllllllllllllllllllllllll - - - - _-__--______I FIRE HYDRANT PROPOSED UNDER PLEASANT GREEN GRADING PROPOSED WITH PLEASANT GREEN PLEASANT GREEN PHASE I ROAD &UTILITY PLAN -SUB-2019-0 0 0 71 ------------------ --- ----- - - BLOW -OFF PROPOSED UNDER PLEASANT GREEN-` PHASE I ROAD & UTILITY PLANS SUB-2019-00071 PHASE I ROAD & UTILITY PLAN SUB-2019-00071 ---- �' PHASE I ROAD &UTILITY PLANS SUB-2019-00071 �` ^ 'C kE IN TaNCETONsnRrST INTeksecnoN _ - - 3 r-�-L \ rh \„ EXISTING RWSA iz' DI WATERLINE O EXISTING 8' WATERLINE PROPOSED WITH PLEASANT NT OF BLUE RIDceAND JARMANSGAP TP - T NG RWSA DI WATERLINE-- _1_ :.o 07GR'A`VEL ROAD KEEN f a - oaD > EXISTI az" - _ -G PHASE I ROAD &UTILITY PLAN -SUB oag 0007a -- / - - - - - o \ \ MCCOMB STREET ROAD CONSTRUCTION__ w w w ,' w ---___wow- w_-- -w - PROPOSED UNDER PLEASANT GREEN.\ w 1 — ____ IR -- C-ze— - L553 4.'' 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COLLINS ENGINEERING IN APRIL 2029, TYP.-- 0DB ^ L.L `P Q EXISTING zoo -YEAR FLOODPLAIN LIMITS Q \`RAMBLIN BROOK LANE CONSTRUCTION, ®®�, ER HEC-RAS ANALYSIS PERFORMED BY CV PROPO ED UNDER PLEASANT GREE_COLLINS ENGINEERING IN APRIL zoig, TYP. CONNECTOR NS - SUB-2019-00058/ f GRADING PROPD UND R PLEASANT GREEN III I � I ;• ' � I � I I I I � I \ \ `\ i I i � - _ _ - - - - - - _�__ n� � / \ \` \ \\\\ \ \\ \� \ \`\ \ ` \ I-� \ ` I ® I 1 I I I I� I "'f 'y _ I I II I I� I -\\✓ /'// \\ �\\ I I � 1� ___ - n n . n��. �A \� "Avg : �`A `: A\�- `. 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IM I97 (j l/1 / \ ` `\\ 10 ` ♦ ;; ` \ °$ 3°iPPR�A ♦; ''-_---------- -- - _ - o a I I , `\ o ee / �` ♦ ♦" _ - I 1 I, o -- H_— — __ --- D-- A / r♦\ vLL� PEACTRDRIVE W ,_ — Lu J _ Lu Lu ! / , _—"--- -- ---- _-- -------- PLEASANT 1 � W i, GREEN \ I Q \ \ /;;; CONNECTOR \ O V / D/', 1 , WP0203.900027 O �— ❑ �O I/ / / LIMITS OF J Q uj DISTURBANCE D J — Y m - - yi — — — — — \ \ O CV \ a IJ Ell I I 1 \ ♦\ / JOB NO. 1 I I 1 ' 1 ' 1 1 \\ ♦♦\ �" \ \ /'` ♦`\ �` 182154 ;I-----40I—1 1 I 1 \ \ OO \ ♦\ 182154 00 50 , 0 200 1I SCALE 1 IN [ ET SHEETO. 1 inch 100 It,�❑ / \ 4 EROSION & SEDIMENT CONTROL EROSION CONTROL NOTES DESCRIPTION OF EROSION & EROSION CONTROL NOTES & NARRATIVE MEASURES: 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO 7HE SEDIMENT CONTROL MEASURES: PROJECT DESCRiPnON: PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TTHE COMMENCEMENT OF LAND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. THE PURPOSE OF THIS LAND DISTURBANCE ACTIVITY IS TO CONSTRUCT THE RESIDENTIAL HOMES AND THEIR CORRESPONDING ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND INFRASTRUCTURE FOR PHASE II OF THE PLEASANT GREEN DEVELOPMENT IN CROZET, VA. THIS PROJECT PROPOSES TO DISTURB 16.99 STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF THE FOLLOWING: MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL MEASURES: ac. OF LAND, IN ADDITION TO THE 1315 cc. ORIGINALLY APPROVED WITH WPO201900003. THE PROJECT WILL BEGIN ITS EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR CONSTRUCTION WITH THE PROPOSED ESC MEASURES IMMEDIATELY FOLLOWING PLAN APPROVAL, WHICH IS ANTICIPATED TO BE IN THE 301 SAFETY FENCE: 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. IT IS ANTICIPATED THAT THE CONTRACTOR WILL USE A CONSTRUCTION ENTRANCE, SPRING OF 2021. THE WORK IS ANTICIPATED TO BE COMPLETED WITHIN 18 MONTHS AND TO CONCLUDE IN 774E FALL/WINTER OF 2022. A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CON7ROL J. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR RIPRAP, OUTLET PROTECTION, DIVERSIONS, TWO SEDIMENT TRAPS, THREE SEDIMENT THE CONVERSION OF THE TEMPORARY SEDIMENT BASINS TO PERMANENT SKIM FACILITIES MAY OCCUR AT A LATER DATE IF PHASE Ill's MEASURE. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY AS THE FIRST STEP IN CLEARING. BASINS, INLET PROTECTIONS, AND SILT FENCES TO CONTROL SURFACE DRAINAGE. CONSTRUCTION OCCURS DURING THIS TIME FRAME. THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE EXISTING SITE COND177ONS• CAN BE CONSIDERED UNSAFE BY VIRTUE OF P07EN77AL ACCESS BY THE PUBLIC. MAINTAINED ON THE SITE AT ALL TIMES. THE AREA OF THE PROPOSED DEVELOPMENT CONSISTS OF OPEN FIELDS AND EXISTING WOODS WITH LIGHT UNDERBRUSH. THIS SITE 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN ACTIVITIES STOCKPILE LOCA7ONS SHALL BE ON SITE AND SHALL BE STABILIZED WITH GENERALLY SLOPES FROM THE NORTH TO POW£LLS CREEK LOCATED ALONG THE WESTERN PROPERTY LINE. THE SITE IS GENERALLY 302 CONSTRUCTION ENTRANCE.* INDICATED ON 7H(ESE PLANS INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR A TEMPORARY VEGETA77VE COVER. TEMPORARY STOCKPILE AREAS THAT ARE USED FOR GENTLY SLOPED AND IS WELL DRAINED. A STABILIZED GRAVEL CONSTRUCTION ENTRANCE LOCATED AT POINTS OF VEHICULAR WASTE AREASTHE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION STORING SOIL UNTIL A LATER TIME FOR SPREADING WILL REQUIRE MAINTENANCE & ADJACENT AREAS: INGRESS AND EGRESS ON A CONSTRUCTION SITE TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONTROL PLANN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING SHALL BE SURROUNDED BY SILT FENCE AT ALL TIMES. PERMANENT SEEDING WILL BE THIS SI7F IS BORDERED ON THE EAST BY RAILROAD TRACKS AND EXIS77NG RESIDENTIAL DEVELOPMENT. POWELLS CREEKS EXISTS TO CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE 6. AUTHORITY. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE THE WEST. THE EXISTING PHASE I PLEASANT GREEN DEVELOPMENT EXISTS TO THE SOUTH AND EAST. SILT FENCE WITH WIRE BACKING, THE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS CONSTRUCTION AC77WTIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE DIVERSIONS, SEDIMENT TRAPS, SEDIMENT BASINS, INLET CONTROLS, AND VARIOUS OTHER ESC MEASURES ARE PROPOSED TO LIMIT 774E DETERMINED BY THE PLAN APPROVING AUTHORITY. P07EN77AL FOR CONTAMINATION OF 774ESE ADJACENT PROPER77ES AND WATERWAYS 3.03 CONSTRUCTION ROAD STABILIZATION: PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR OFFSI7E LAND DISTURBANCE, 774E TEMPORARY STABILIZATION OF ACCESS ROADS SUBDIVISION ROADS PARKING 7 ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL 77MES DURING LAND DISTURBING ACTIVITIES AND DURING S17E DEVELOPMENT MORE. SELEC77ON OF SEED MIXTURE WILL DEPEND ON THE 77ME OF YEAR APPLIED. OFFS17E LAND DISTURBANCE IS LIMITED TO PUBLIC RIGHT-OF-WAY AND AREAS LOCATED WITHIN THE OVERALL PLEASANT GREEN AREAS, AND 07HER SITE VEHICLE TRANSPORTATION ROUTES WITH STONE IMMEDIATELY BOUNDARY. AFTER GRADING. TO REDUCE EROSION OF TEMPORARY ROADBEDS BY CONSTRUCTION UN77L FINAL STABILIZAT70N IS ACHIEVED. TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE TRAFFIC DURING WET WEATHER AND TO REDUCE EROSION AND SUBSEQUENT REGARDING 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED LEFT DORMANT FOR MORE THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH SOILS OF PERMANENT ROADBEDS BETWEEN THE 77ME OF 1N177AL GRADING AND FINAL FILTERING DEVICE. FAST GERMINATING VEGETA77ON IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SEE SOIL DESCRIPTIONS ON THIS PAGE AND THE PHASE l EROSION & SEDIMENT CON7ROL PLAN FOR BOUNDARIES, SOIL TYPES AND STABILIZATION. USE WHEREVER STONE -BASE ROADS OR PARKING AREAS ARE 9. 774E CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY GENERAL SOIL DETAILS. CONSTRUCTED, WHETHER PERMANENT OR TEMPORARY, FOR USE BY CONSTRUCTION AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR SELEC77ON OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED, CRI77CAL AREAS,• TRAFFIC. CLEANUP TO MAINTAIN THE EFFEC77VENESS OF THE EROSION CONTROL DEVICES SHALL POWELLS CREEK AND ITS IMMEDIATELY ADJACENT WETLANDS ARE LOCATED ON THE PROPERTY. THESE ARE LOCATED DOWNGRADIENT BE MADE IMMEDIATELY. 3.01 SAFETY FENCE - SAFETY FENCE IS PROPOSED AROUND THE SEDIMENT BASINS AND FROM THE PROPOSED DEVELOPMENT AND ARE CONSIDERED CRITICALLY SENSITIVE AREAS. THE EXISTING ADJACENT RESIDEN77AL LOTS, 305 SILT FENCE., 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. THE RAILROAD TRACKS/PROPERTY AND THE EXIS77NG ONSITE STRUCTURES PROPOSED TO REMAIN WITH PHASE lI DEVELOPMENT ARE A TEMPORARY SEDIMENT BARRIER CONSISTING A SYNTHETIC FILTER FABRIC il. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SEDIMENT TRAPS ALSO CRI77CAL AREAS. THE CONTRACTOR SHALL GIVE EXTRA ATTENT70N AND CAUTION IN AND AROUND THESE CRI77CAL AREAS TO R7 STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED TO SHALL BE INERT MATERIALS ONLY FREE OF ROOTS STUMPS WOOD RUBBISH AND • � � 3.02 CONSTRUC770N ENTRANCE - TO REDUCE THE AMOUNT OF MUD TRANSPORTED ENSURE SEDIMENT IS NOT DEPOSITED ON THEM. TREE PROTECTION FENCING, SILT FENCING, DIVERSIONS AND SEDIMENT TRAPPING INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, 12. OTHER DEBRIS. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. DEVICES SHALL ALSO BE INSTALLED AS A FIRST STEP IN LAND DISTURBANCE TO ENSURE THESE CRITICAL AREAS ARE MAINTAINED. AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL PER ZONING ORDINANCE SEC77ON 5.1.28. 3.03 CONSMUC77ON ROAD STABILIZATION - TO REDUCE THE EROSION OF TEMPORARY SEQUENCE OF CONSTRUCTION: CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 ROADBEDS BY CONSTRUCTION TRAFFIC AND TO REDUCE THE EROSION AND SUBSEQUENT i. CONTRACTOR SHALL NOTIFY THE ALBEMARLE COUNTY COMMUNITY DEVELOPMENT ENGINEERING DEPARTMENT TO SCHEDULE A AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW OF 774E CODE OF ALBEMARLE. REGARDING OF PERMANENT ROADBEDS BETWEEN THE TIME OF INITIAL GRADING AND PRE -CONSTRUCTION MEETING. AS INDICATED. 7HEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT 2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE PROTECTION FENCING SHALL BE MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL SHALL BE LIM17ED TO THE HOURS OF 7:00 AM TO 9.00 PM. FINAL STABILIZATION. CONSTRUCTION ROAD STABILIZATION WILL BE APPLIED TO THE INSTALLED. HANDBOOK (VESCH). 15. BORROW, FILL OR WASTE AC77WTY SHALL BE CONDUCTED IN A SAFE MANNER THAT CONTRACTOR PARKING & STAGING AREAS AS NEEDED. J. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING 774E CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM THE MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, J. SILT FENCE- SILT FENCE IS PROPOSED, WHERE SHOWN ON THE PLANS. INSPECTOR ON THE PROJECT. 307 STORM DRAIN INLET PROTECTION. PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY 4. INSTALLA77ON OF THE PROPOSED CONSTRUCTION ENTRANCE AND ADJACENT SEDIMENT TRAP A' SHALL OCCUR NEXT. THE A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 3.07 STORM DRAIN INLET PROTECTION- STORM DRAIN INLET PROTECT70N IS SHOWN ON CONTRACTOR SHALL APPLY CONSTRUCTION ROAD STABILIZATION AS NEEDED TO THE CONSTRUCTION ENTRANCE AND CONTRACTOR DROP INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR THE PLANS WHEN INLETS ARE CONSTRUCTED BUT THEIR SITE's CONTRIBU77NG DRAINAGE PARKING / STAGING AREA. CONTRACTOR SHALL ENSURE 774E CONSTRUCTION ENTRANCE DRAINS TO AN ADEQUATE E&S SYSTEMS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. INLET PR07EC77ON APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL CONVERT TO PERMANENT STORMWATER MANAGEMENT FACIL177ES WHERE APPLICABLE AREA IS STILL BEING STABILIZED. MEASURE, AS SHOWN. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DISTURBED DRAINAGE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE 3.11 TEMPORARY RIGHT OF WAY DIVERSION- A RIGHT-OF-WAY DIVERSION IS PROPOSED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE AREA. SALE OF ANY LOT, UNIT, BUILDING OR 07HER PORTION OF THE PROPERTY. PAVED SURFACE WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, 774E ROAD SHALL BE CLEANED 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING ACROSS THE CONSTRUCTION ENTRANCE, WHERE SHOWN ON THE PLANS. THOROUGHLY AT 774E END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND 3.11 7EMPORARY RIGHT-OF-WAY DIVERSION: IS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO 3.12 DIVERSION- PERIMETER DIVERSIONS ARE PROPOSED WHERE SHOWN ON THE PLANS. TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONS7RUCTED ACROSS CONSIST A 50/50 MIX OF ANNUAL RYGRASS AND CEREAL WINTER RYE, OR IN MARCH 3.13 SEDIMENT TRAP- TWO SEDIMENT TRAPS ARE PROPOSED. REMOVED IN 7H1S MANNER. DISTURBED RIGHTS -OF -WAY AND SIMILAR SLOPING AREAS. TO SHORTEN THE FLOW AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF 3.14 SEDIMENT BASIN- THREE SEDIMENT BASINS ARE PROPOSED. 5. THE INITIAL ESC CONSTRUCTION MEASURES, AS SHOWN ON THE PHASE I EROSION & SEDIMENT CONTROL PLAN, SHALL BE LENGTH 1I7H/N A SLOPING RIGHT-OF-WAY, THEREBY REDUCING THE EROSION P07EN77AL GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 8OLBS/f00SF. AL7ERNA77WS INSTALLED NEXT. THE CONTRACTOR SHALL BEGIN BY INSTALLING THE PERIMETER SILT FENCE AND TREE PROTECTION. PERIMETER BY DIVERTING STORM RUNOFF TO A STABILIZED OUTLET. GENERALLY EARTHEN ARE SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. 3.18 OUTLET PROTEC7ON-OUTLET PROTECT70N IS PROPOSED AT THE OUTLET OF THE MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTITY AND DIVERSIONS ARE APPLICABLE WHERE THERE WILL BE LITTLE OR NO CONSTRUCTION 18. PERMANENT STAB/L/ZA77ON SHALL BE LIME AND FER77L/ZER, PERMANENT SEEDING, AND SEDIMENT BASIN. SEE THE ESC PLAN FOR THE DESIGN LOCATION. SHALL BE MADE FUNC77ONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. TRAFFIC WITHIN THE RIGHT-OF-WAY. GRAVEL STRUCTURES ARE MORE APPLICABLE TO MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF, 3.19 RIPRAP- RIPRAP IS PROPOSED AT THE OUTLET OF THE SEDIMENT BASIN. 6. ONCE 774E PERIMETER EROSION CONTROL SILT FENCE AND TREE PR07EC77ON HAVE BEEN INSTALLED AND SEDIMENT TRAP A' ROADS AND OTHER RIGHTS -OF -WAY WHICH ACCOMMODATE VEHICULAR 7RAMC. INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT INSTALLED WITH THE CONSTRUCTION ENTRANCE, AND 774E COUNTY INSPECTOR HAS APPROVED THESE MEASURES, LIGHT CLEARING 1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING 3.32 PERMANENT SEEDING -PERMANENT SEEDING IS REQUIRED AND PROPOSED WITH THIS AND LAND DISTURBANCE MAY BEGIN FOR THE REMAINING PERIMETER CONTROLS THE CONTRACTOR SHALL BEGIN Wl7H 174E 312 DIVERSION: A CHANNEL CONSTRUCTED ACROSS A SLOPE WITH A SUPPORTING EARTHEN RIDGE ON SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL PLAN. INSTALLA77ON OF SEDIMENT BASINS B; 'C', D', AND 'E, SHOWN ON THE PHASE I ESC PLAN. FOLLOWING THE INSTALLA77ON OF THE LOWER SIDE. TO REDUCE SLOPE LENGTH AND TO INTERCEPT AND DIVERT FESCUE AND 0-57 PERENNIAL RYGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS 3.38 TREE PRESERVA77ON AND PROTECTION- TREE PROTECTION IS PROPOSED WITH THIS THESE MEASURES, THE CONTRACTOR SHALL INSTALL THEIR CONTRIBUTING DIVERSIONS AND ANY REMAINING SILT FENCE. STORMWA TER RUNOFF TO STABILIZED OUTLETS AT NON -EROSIVE VELOCITIES. APPLIES TO BE APPLIED AT 80LSS/100SF. ALTERNA77VES ARE SUBJECT TO APPROVAL BY THE PLAN. SEE THE ESC PLAN FOR THE REQUIRED LOCATIONS. FOLLOWING THIS, THE CONTRACTOR SHALL INSTALL ANY REMAINING EROSION CONTROL 17EMS AS SHOWN ON THE PHASE I WHERE RUNOFF FROM AREAS OF HIGHER ELEVATION MAY DAMAGE PROPERTY, CAUSE EROSION CONTROL INSPECTOR. 3.39 DUST CONTROL -DUST CONTROL IS REQUIRED AND PROPOSED WITH THIS PLAN. EROSION CONTROL PLAN. TEMPORARY SEEDING PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED. EROSION, OR INTERFERE WITH THE ESTABLISHMENT OF VEGETA77ON ON LOWER AREAS, 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH 7. ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED & ARE OPERATIONAL, DRAINAGE IS PROPERLY WHERE SURFACE AND/OR SHALLOW SUBSURFACE FLOW IS DAMAGING SLOPING UPLAND, RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIRED CONVEYED TO THESE MEASURES, AND THE ESC INSPECTOR HAS GRANTED APPROVAL, THE CONTRACTOR CAN BEGIN CLEARING AND WHERE THE SLOPE LENGTH NEEDS TO BE REDUCED TO MINIMIZE SOIL LOSS. IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE THE REMAINDER OF THE SITE VOLUME IS FILLED W774 SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN 8. AFTER CLEARING THE PROPOSED AREAS, THE CONTRACTOR CAN BEGIN ROUGH GRADING THE S17F TO THE CONTOURS SHOWN ON J.13 TEMPORARY SEDIMENT TRAP., NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION MAINTENANCE. THE PHASE 11 EROSION & SEDIMENT CONTROL PLAN. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A A TEMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT DYKES WHICH ARE COLLEC77NG SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE WITH A STONE OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AND REPAIRED IMMEDIATELY. IN GENERAL, DURING CONSTRUC7ON THE RLD OR CONTRACTOR ON -SITE WILL CHECK ALL TAKES PLACE. ADDITIONALLY, THE PREVIOUSLY INSTALLED SEDIMENT BASINS B, 'C, D, AND 'E, AND SEDIMENT TRAP A' AND AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED EROSION AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH SIGNIFICANT PERIMETER DIVERSIONS SHALL REMAIN OPERATIONAL AT ALL TIMES THROUGHOUT CONSTRUCTION AND SHALL BE MAINTAINED USE BELOW DISTURBED AREAS WHERE THE TOTAL CON7R1BU77NG DRAINAGE AREA IS WITHIN 30 DAYS OF FINAL SITE STABILIZATION WHEN MEASURES ARE NO LONGER RAINFALL. MONITORING REPORTS WILL BE REQUIRED FROM THE RLD IF NEEDED. SPECIFIC Q THROUGHOUT THEIR LIFE CYCLES. THIS WILL CONTINUE TO OCCUR EROSION &SEDIMENT CONTROL PHASE lI. LESS 7HAN 3 ACRES, WHERE 774E SEDIMENT TRAP WILL BE USED NO LONGER 7HAN 18 NEEDED, SUBJECT TO APPROVAL BY 774E EROSION CONTROL INSPECTOR. ATTENTION WILL BE GIVEN TO THE FOLLOWING ITEMS 9. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIEDD TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL MONTHS, AND IT MAY BE CONSTRUCTED EI7HER INDEPENDENTLY OR IN CON✓UNC77ON 21. THE E&S INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE E&S CONTROLS AS a.SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN GRADE IS REACHED ON ANY POR77ON OF THE SITE TEMPORARY SOIL STABILIZA7ON SHALL BE APPLIED WITHIN SEVEN DAYS TO WIN A TEMPORARY DIVERSION DIKE. NECESSARY IN THE FIELD AS SITE CONDITIONS CHANGE. IN ADDITION, NO SEDIMENT ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS BASIN OR TRAP CAN BE REMOVED WITHOUT WRITTEN AUTHORIZATION. 3.14 TEMPORARY SEDIMENT BASIN., &ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. A TEMPORARY STRUCTURE FORMED BY OCONSTRUC CONSTRUCTING AN EMBANKMENT OF COMPACTEDRELEASE SOIL ACROSS SOIL DESCRIPTION WILLCLOGGED THE AND CLEANED, OR ITGRAVEL GRAVEL WILL BE REMOVEDDRAINAGE BE REPLACED. 10' lS PROPERLY CONVEYEDGRADED, AGE THE ESCNSPECTORHAVE THE CONTRACTORCANDRAIN HAS GRANTED APPROVAL,ARE TO ALL IS THESE MEASURES, ANDEROSION A DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS c. ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR PROCEED WITH THE PHASE Ill ESC PLAN. THE INSPECTOR SHALL APPROVE THE CONVERSION OF SEDIMENT BASIN E' TO IN "WET" AND `DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO 7B- BRADDOCK LOAM-2 TO 7% SLOPES. SOIL IS WELL DRAINED WITH A MEDIUM RUNOFF DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE SEDIMENT TRAP E'. SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING - CLASSIFICATION, SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0 8 THICK. REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO THE il. THE CONTRACTOR SHALL BEGIN INSTALLATION OF THE UTILITIES, CURB AND GUTTER, WALLS, AND ROADS INLET PROTECT/ON DRAINAGE AREA IS EQUAL TO OR GREATER THAN THREE ACRES. THERE MUST BE THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". TOP OF THE BARRIER. SHALL BE INSTALLED ON ALL INLETS IMMEDIATELY FOLLOWING THEIR CONSTRUCTION. THE INLET SHALL BE SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR THE CONSTRUCTION OF A ALLINSPECTED d.MAI SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS TONE FILTER AFTER EACH RAINFALL EVENT AND REPAIRS SHALL BE MADE AS NEEDED. IF THE STONE FILTER BECOMES CLOGGED TEMPORARY IMPOUNDMENT. 8C3- BRADDOCK LOAM, 7-15% SLOPES, ERODED. SOIL IS VERY DEEP, WELL DRAINED, MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. WITH SEDIMENT SO THAT IT NO LONGER ADEQUATELY PERFORMS ITS FUNCTION, THE STONE MUST BE PULLED AWAY AND 318 ourL£r PRor£cnoN: AND MODERATELY PERMEABLE. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD CLEANED AND OR REPLACED. / STRUCTURALLY LINED APRONS OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES 0-9" THICK. THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". OR CONTRACTOR ON -SITE THE CONTRACTOR AT THIS TIME IS DIGS BROOK WOOD WITH 12. ONCE PROPOSED CONSTRUCTION IS COMPLETE, THE S17E IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE PLACED AT THE OUTLETS PIPES PIPES OR PAVED CHANNEL SECTIONS. TO PREVENT 17- CRAIGSVILLE LOAM-0 TO 2% SLOPES. SOIL IS WELL DRAINED WITH A VERY LOW - DIGS MAY BE REACHED AT 434 978 4435. IN ADDITION THE OWNER MAY BE CONTRACTOR CAN REMOVE THE EROSION & SEDIMENT CONTROL MEASURES. FINAL TIMING DETAILS ARE TO BE COORDINATED UT PROTECT THE OUTLET STRUCTURE, AND TO SCOUR AT STO07EN7ER OUTLETS; RUNOFF CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0 8" CONTACTED. UPON COMPLETION OF THE PROJECT, THE OWNER WILL BE RESPONSIBLE BETWEEN THE CONTRACTOR AND THE INSPECTOR FOR THE CONVERSION OF THE SEDIMENT BASINS TO PERMANENT SWM MINIMIZE THE S AL FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND THICK. THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". FOR SITE MAINTENANCE. NO ITEM SHALL REMOVED, THROUGHOUT ALL PHASES OF CONSTRUCTION, UNLESS THE UPSTREAM AREAS ARE CONCENTRATED ENERGY OF CONCENTRATED STORMWA7ER FLOWS. APPLICABLE TO THE OUTLETS OF ALL 25B- DYKE SILT LOAM-2 TO 77 SLOPES. SOIL /S WELL DRAINED WITH A MEDIUM RUNOFF STABILIZED AND THE INSPECTOR GIVES PRIOR PERMISSION. STABILIZED O PIPES AND ENGINEERED CHANNEL SECTIONS. CLASSIFICATION. SURFACE LAYER IS TYPICALLY SILT LOAM AND ABOUT 0-8" THICK. 13. THE CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE K17H THE J.19 RIPRAP: 36D- HAYESVILLE LOAM-15 TO 25% SLOPES. SOIL /S WELL DRAINED WITH A HIGH RUNOFF VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. A PERMANENT EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-7" THICK. 14. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL S17E STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT THE SOIL FROM THE DEPTH 70 THE WATER TABLE IS GENERALLY MORE THAN 80". STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESUL77NG FROM THE DISPOSITION OF CONCENTRATED RUNOFF WHILE ENHANCING THE P07ENTIAL FOR INFILTRATION, AND TO REFERENCE: WEB SOIL SURVEY ONLINE DATABASE, FOUND AT STABILIZE SLOPES WITH SEEPAGE PROBLEMS, AND/OR NON -COHESIVE SOILS. USE http://websoilsurvey.nres.usda.gov/appIWebSoilSurvey.aspx WHEREVER SOIL AND WATER INTERFACE AND THE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA77VE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS. GENERAL SLOPE (3:1 OR LESS) PER ACRE TOTAL LBS 331 TEMPORARY SEEDING. KENTUCKY 31 FESCUE 128 LBS. THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY RED TOP GRASS 2 LBS. SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION SEASONAL NURSE CROP 20 LBS. AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO 150 LIES FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS TO REDUCE DAMAGE FROM SEASONAL NURSE CROP SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PR07EC77ON TO BARE SOILS EXPOSED DURING CONSTRUCTION UN77L PERMANENT FEBRUARY 16 THROUGH APRIL ANNUAL RYE VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET AUGUST 16 THROUGH OCTOBER ANNUAL RYE 332 PERMANENT STABILIZATION: NOVEMBER THROUGH FEBRUARY 15 WINTER RYE THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY NOTES: PLANTING SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL IS ECONOMICAL, ADAPTABLE TO S17E CONDITIONS AND ALLOWS SELECTION OF THE TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTIVITIES, ALL AREAS WILL 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION RECEIVE A PERMANENT VEGETA77VE COVER. OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35. 338 TREE PRESERVATION AND PROTECTION: PS PERMANENT SEEDING SCHEDULE PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR 07HER INJURY DURING LAND J NO SCALE DISTURBING AND CONSTRUCTION ACTIVITY. TO ENSURE 774E SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, (STD. & SPEC. 3.32 OF VIRGINIA EROSION & WATERSHED PROTECTION LANDSCAPE BEAUTIFICATION DUST AND POLLUTION CONTROL NOISE REDUCTION, SHADE AND 07HER ENVIRONMENTAL BENEFITS WHILE THE LAND IS SEDIMENT CONTROL HANDBOOK, 3RD ED.) BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN 7REE-INHABI7ED n AT/•� n Source: Va. DSWC AREAS SUBJECT TO LAND DISTURBING ACTIVITIES. L7 ROSIOl\IinATTROL mTL7 S 339 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE K17H THE VESCH. ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. ES-7.•ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL 77MES DURING LAND DISTURBING ACTIVITIES AND DURING S17E DEVELOPMENT UN77L FINAL STABILIZATION IS ACHIEVED. ES-B.-DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED WATER FILTERING DEVICE. ES-9:7HE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRAC7CES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS V R 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONSTRUC770N CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ES-J.-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. ES-4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES ES-5.-PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIA417ED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO 774E OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. 1992 3.07 1992 STONE 70' MIN. CONSTRUCTION .• COURSE 2% rEXISTING PAVEMENT cll t \-6" MIN. 21A AGGREGATE BASE PROFIL STONE CONSTRUCTION ACCESS � 2% 12% MIN. -ASPHALT PAVED WASHRACK 1 2% 12' MIN.- LID t-POSITIVE DRAINAGE -MUST EXTEND FULL WIDTH TO SEDIMENT OF INGRESS AND EGRESS OPERATION , TRAPPING DEVICE PLAN SECTION A -A EXISTING PAVFVFNT )RAINA'I TNT o v, A muwmuu water tap of 1 inch must be wnstalled with a mwtimmn 1 inch ballcocic shutoff vah a supplying a wash hose with a dianneter of 1.5 inches for adequate constant pressure. Wash water must be carried away from tine Enhance to art approved settling area to remove sedwnent. All se(6ruent shall be prevented from etiteriug stonu drawls, (htches or wate(eomsee PAVED WASH RACK GRAVEL CURB INLET SEDIMENT FILTER GRAKL FILTER* IY RUNOFF WATEF WIRE MESH GILTEREO WATER IT I _ SWAM ill G e CONCRETE GUTTER I? �PCURB INLET SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS rFHERE PONDING IN FRONT OF THE STRUCTURE IS NOT ❑KELY TO CAUSE a1CONVENI3NCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. • GRAVEL SHALL BE WOT y3, A357 OR 5 COARSE AGGREGATE. Source: Va. DSWC Plate 3.07-2 Source: Va. DSWC Ill -36 m-41 1 SET POSTS AND EXCAVATE A 4"X4" 2 STAPLE WIRE FENCING TO NO SCALE 3.07 1992 3.11 Plate 3.07-6 Source: Va. DSWC TRENCH UPSLOPE ALONG THE LINE THE POSTS. J. ATTACH THE FILTER FABRIC TO OF POSTS. THE WIRE FENCE AND EXTEND lT INTO THE TRENCH. FLO� III - 62 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. =III- EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. 05- Plate 3.11-1 0 z LL W L9 z In Ul z No. 35791 1/29/21 ti M ci N M d' I N O N N W J \J U) W 0 Q U LU U) W LU LV U) LU Of O N z J a w J � 0L ^ 06 CI..L LU ,G i V 1 Q 14 Q i--i z LU Cf) Lu T� I z J z z W O LU LL C� W 1 Q z W co (j' z LU J U) O W F w w w 0_ I (r) 182154 SCALE N/A SHEET NO. 5 U. PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL 4" EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE Source: Va. DSWC SUPER SILT FENC� EFFEC 77 VENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE SSE, (WITH WIRE -BACK IMMEDIATELY. NO SCALE woo / / / / LIMITS OF DISTURBANCE APPROVED- / 010 i ROPERTY LIMITS (TYP.) / / _ - WITH WP0203900003 — W PROPOSED LIMIT DISTURBANCE (TYP.) / / W W _ — iCONTRACTOR SHALL INSTALL / RAP/ DIVERSION ACROSS THE / W —/ / CONSTRUCTION ENTRANCE. _ — / �W / PHASE I DRAINAGE / / / X — SF —W _ / AREA TO SEDIMENT — — W w mom TRAP A = 2.2o ACRES \� // PROPOSED TEMP. RISER & _ / CONTRACTOR SHALL USE, PO ION OF THE XISTING EMERGENCY 000BARREL OUTFALL TO INLET \ ACCESS ROAD FOR THE PAVED CONSTRUCTION ENTRANCE. \ / / CONTRACTOR SHALL INSTALL A WASH RACK AND ENSURE A' \ / MINIMUM12'x7o'PAVEDAREAFORTHECONSTRUCTIONENTRANCE:.010 PROPOSED CONTRACTOR / k ` ` x — 'A IP / \\ �\ ._ IP STAGING AREA x F CULVERTTO 12x70 MIN. W/, WAS K BEREMOVECS' C /`. yj �SSEP PROPOSED CONCRETE WASHOUTAREA \ \ \ \ SCOTT/R. Ct°LLINS'Z No. 35791 a pow 1/29/21c�R �•SIONeT. EEC, DRAINAGE DIVIDE (TYP. LOCATION OF / \ \ ,' \ \ / / �I / . PORTA-POTTIES I " / / V / \ ��/ r / % // a a / / SOIL TYPE / ,��p / / z J / / \ v / il"✓ O a o %i' / ROPOSED18 DIVERSION. \ a / ° // \ \ �56 1 1 H LOCATION OF'' _ — — 3e8 DD CONTRACTOR SHALL ENSURE \ / a r / _ J / / / iS CY DUMPSTER \ POSITIVE SLOPE IS MAINTAINED.- I `�\\\ - / � I y4` (\ O V D r LIMITS OF DISTURBANCE APPROVED/ BERM SHALL BE STABILIZED AS / \ \ `, - - - - - / / / / / \ L FBI w m C A FIRST STEP IN DISTURBANCE _ _ _ _ _ - r \ o UCTION TRAFFIC SHALL \ / / WITH WP0201900003 / / R SITE ACCESS \ \ / / \ - - _ - -_ i / ' / f \ z a / LOCATION OF a \ / I \ \ �P ti% - �� ♦ \ \ FUELING AREA- - / I \ a \\\ C f a \ `/ m z U TS I \ CULVERT TO / / / / / / THE FUELING TANK SHALLIE COMPLETELY SURROUNDED BY I � a / l I `\\\ , S¢'�E/8 gS \\ -� / ' \ w C / / A 2' DEEP, z' WIDE EARTHEN BERM WITH A HEAVY MIL \ a / / ° �/ R /— BE REMOVED / / / \ / l ` \ \ CST FFr [� POLYETHYLENE LINING, OR BE PLACED IN AN IMPERVIOUS � - - _ - - _ J / / , \ \ \ .BEET �-�•T�:�` OPEN -TOP DUMPSTER WITH A SIDE DOOR. THE PROPOSED BERM OR DUMPSTER SHALL CONTAIN FUEL IN THE EVENT OF A SPILL. CONTRACTOR SHALL ENSURE VOLUME CAPACITY IS \ / / ` \\ \\ • \ I P I \ = w , / / / / / / 1095 LARGER THAN THE MAXIMUM VOLUME OF STORED FUEL. / \ SF - - EXISTING CUL-DE-SAC - - - - -- / / / \ "• / Lu \ \ ' - _ / TO BE REMOVED / / / / / / x N / �I r _ ® / � SANITARY E / ' u LV TO BE R OVED (PROPOSED 18" DIVERSION.- ' CONTRACTOR SHALL ENSURE REGRADE SO THAT ROADSIDE / / / /' / a / / SDI( /POSITIVE SLOPE IS MAINTAINED./ / /2 / DITCH OUTFALLS DIRECTLY // // / // / / TS/ \ BERM SHALL BE STABILIZED AS �'- IP / , VIA OVERLAND FLOW TO �\ / / / / / / / ^`� / A FIRST STEP IN DISTURBANCE. / EDIMENT BASIN C / / y\ / / / / / IP - _ % az9 REGRADE SO THAT ROADSIDE / / / / \ /L / ! = / ! - - Y 1 _ , / DITCH OUTFACES DIRECTLY / / / - - a a / / / TE PLLE LOb VA / / / i SOIL TYPE / / / / �' s PROPOSED STOCKPILE AREA TO BE a / / / j' / pRl TREET / VIA OVERLAND FLOW TO \ ENCOMPASSED BY SILT FENCE AT ALL TIMES Q i / SEDIMENT BASIN C �5B / / / / / / / / / / / / IP z7 PRIVATES " 4 LOT a ♦U N N N -/ TS / / / // _ v� DC / // / ---- / / �' // _ - --_ /�--_� / - LOT PHASE I DRAINAGE SOIL TYPE / / / / / / 1 \ \ SF / / % \ \ / Lu /— B / DID LENGTH=6z ' — — AREA TO SEDIMENT ] � S� v � / / D.A.=2.28 ac., Tc=22 min., / _ \ \ \ / / / / / �/ ( I \ / _ I LOT BASING=8.1zACRES / / /' C=o. Qz- icfs / / /' / / — _ — I zs /� — / 45, -4 / v ------ / / / i LOT M / —446-- / / ,( / / �v _J / / PHASE I DRAINAGE /— / / /l / �' // AREA TO SEDIMENT ,� I Lob / / / PROPOSED INSTALL SAND, KEEP OUT" SAF \ \ / / / / / // / \ \\ \ \ \ EXISTING TREELINE (TYP.) BASIN D = 6.05 ACRES j / / _ - - ` . - \ \ - - - - - - _ / / / " , � V------- ----_ ,� / // / �a � / / I LOOle ', � � / / I � / // � / / / - / / // LOT // / I (�7 --_ / PROPO / / / / / / ✓ / / / / / F I 04 LL Z _ - _ __ F SED i8' DIVERSION. / - }a&-- BIVI --- - CONTRACTOR SHALL ENSURE / \ - �' // �' / SOIL TYPE % / \ \ TP � �33- - � i i � / / / / / / / / � ' / ^'� � LOT LOT � � Q _- - - - POSITIVE SLOPE IS MAINTAINED. / / / / / / n SOIL TYPE \ ^ / SOILS / `"� / / / / / / ' / / // '� 2s 6D , � BERM SHALL BE STABILIZED AS / / / / I \ SF / LINE (TYP.)/ LIMITS OF DISTURBANCE APPROVED / / � \ / / /// / 6�� - / / 3 �/ 9 N J wA FIRST STEP IN DISTURBANCE. / / / I 8C3 \ / / / / / / tvj... - _ / l ]/ (NI a �/ / �-\ \ / / WITH WPOzoig00003. / Q. \ - �t EXISTING PLEASANT GREEN zo J PROPos�FDBAEFLES _----,-----�/ // A\ AIr �► ' �'; �� /� // / / /// / / ///� //�' �� Imo` b /� LOT PHASEIDEVELOPMENT T W < � O z9 DDLENGTH=632' /// / // , /-7////' O LOT //�/ / %� / \ \\� J .A.=3.62aC, TC=12 min., �/ ' _ �' / / / � / / / / // /' 30 / / // i \ � ' J /C=0-4Sr Q2=6.2 Cf5 i ! / / / / / /' \,. ,(I / ' / // / / / ' / LOT 4/ /\/� H� O 22/VJ - - / V _ _ , i,✓� / / / LOT .j � W PROPOSED VDOT STD. CLASS AlAI — — -- i / / / ' " 2°' ' • 31 ` / / / �► RIPRAP LINED OUTLET PROTECTION / / / _ — — — \ — _ / / f / PROPOSED 18" DIVERSION. / / / / / / I \ l� / / /- _ _ _ - / 'CONTRACTOR SHALL ENSURE / ///// / /I •. \\� ~ �+ • Z WITH FILTER FABRIC UNDERLAYMENT \ / / / / - / / � 5', s', -93p J / / / / / / - - J' - - - _ -' / / � / / / POSITIVE SLOPE IS MAINTAINED. � / / / /� � ] f LOT // �/ / � zy ,O (MIN L-8', W1=y. Wa-12. D=6") / r-- \ t DI) ERM SHALL BE STABILIZED AS / / / / /// / (' �f \ / `. / \ Lu D AFIRST STEP INDISTURBANCE . - / // /7//� \ // / / ��,,✓ J T G / 4 0 y / LEVEL SPREADER 0 ILL PIPE SHALL E i — — — l SF / / / /� TEMPORARILYBLOCKED DURING CONSTRUC TION, F ' ' �/ — ` / S DIL TYPE / / / I l I I =\\\ I �/s� �✓� _ LLJ DIRECTING RUNOFFTO THE PRIMARY / / / i I I A�Q<fC I \ \ \,��,/ TEMP. BLOCKAGE SHALL BE REMOVED AT THE TIME _ — i I / / / / / _ _ _ c'•, FTHE TEMP. BASIN'sREMOVAL. DOWNSTREAM /' / �/� / / \-- —� 36D p / I6bP&EDSAFETYFENC, -''e; S s \ V`��5(R, U PROPOSED OUTLET PROTECTION TO BE VDOT STD. / ' / - - ' - -" - / _ - - /� INSTALL SIGNS 'WARNING��, • • ,a V (, Y016 / / �1 - - - -' / ' / \ QUICK SAND KEEP OUT" T //�� LASS Al RIPRAP WITH FILTER FABRIC - - T / _ - - - / y �< _ XISTING ioo' WPO BUFFER (TYP.). / 9 w / - - - - ' i1NDERLAYMENT (L=8', W1=3', Wz=g', Dom) _ _ � / / � / - / � _ — ._ / -\ / / J \ \ � yj � q � - Lu z _---- _ ------ — — v v I _ qt ice/ 0 TING WETLANDS / / / \ \ S' \ _ � j ~ F/ \ — _ / / — i' — 1, � � ii T � �� A \ \ ,. - ��\ � OIL '� I � �/� �llq 'AIM 0 v'j / SEE SWM PLAN FOR '� / PROPOSED FLATVDOTCL. Al RIPRAP LINED / - - I / �'\ 1 / \ \ \ \ _ / ; `W Lu - / O )TLET PROTECTION WITH FILTER FABRIC l OUTFALL DETAILS • ^� * " FLOW DIRECTION ARROW (TYP.) \ S /\ \ y LOT I -I UNDERLAYMENT (L-28', W2= W2=12.T, D=28") / /_ PROPOSED LIMITS OF DISTURBANCE (TYP. \ \ \ \ \ 49Lu SE ~ STURBANCE (TYP. SEE SWM PLAN FOR LEVEL O \ \ // / - - - \ - _ _ \ / �o� \ LOT (n u) '- - - - - - - SPREADER DETAILS 1 / �/ \ \ - - - - _ _\ So Q TREE CLEARING (TYP. S �OiL TYPE \ ` ` - - \ `- - _ EXISTING too-YR FLOODPLAIN PER _ i ♦ \ \ \\ \ �' i� - _--� - - HEC-RAS ANALYSIS PERFORMED PROPOSEDVDOTSTDCLASSAI \\ \\ \ SF \\ w RIPRAP LINED OUTLET PROTECTION \ / 1 - - - - - - BY COLLINS ENGINEERING IN \ / / NN a ] -� � - , � � \ WITH FILTER FABRIC UNDERLAYMENT \ \ �. II \ \ � L.1_ Q / -\ ------ j 7 4Is, s ` \,D OP \\SOIL YP w \ APR 2019, SEE WPO 201 0002) `(MIN. L=8, Wa= . ' W2-az. ', D=6") \, \ O .: � I / / / \ PROPERTY LIMITS (TYP.) \ / - ✓ \ J ♦ \ EXISTING STREAM \ / r / - / \ \ L �� AIDE OUTFALL PI ALL E 1] / / / // / �� QII�� J +TEMPORARILY BLOCKED DURING / / / �/ L! ^ / ' / 1 ` \ - \ \ ✓ / - I \ :CONSTRUCTION, DIRECTING RUNOFF TO THE I..L \ \ \ / O WEB-L-S C _PROPOSED LIMITS O EE CLEARING (TYP.) \ e PRIMARY OUTFALL. TEMP. BLOCKAGE SHALL - - / / / \ _ Z - z- - \ I REEK BE REMOVED AT THE TIME OFTHETEMP. -� - - ASIN's CONVERSION. DOWNSTREAM (V PROPOSED OUTLET PROTECTION TO BE VDOT // \ STD.CLASSAlRIPRAP LINED OUTLET - _ - - \��r/'� / - \ \ TP PROTECTION WITH FILTER FABRIC o -- /� l -GRAPHIC AJAi / � // --_ A A� /- / \�(UNDERLAYMENTL8',Wi_AW2_g',D=18") — — — — — — ri SF O\ 'IIIII \ a tuF/SE SWMPAN �i-- -------_ \ AILS `� SOILTYPEOUTFACE DETIN -FEW 4 182154ft JOB NO. 00 - _ \ - _ PLAIN ` � � � � � - � � SE 10o Y FLObD / `�I - M H E - L _ ' �� \ �� \ \ 1 \ \ \ 1 PER HEC RAS ANALYSIS \ SCALE �\ -7��T, ETC �N \ 01\ �\ ��_ / SEE SWM PLAN F LEV / O SPIRE R DET - o 00 00 , 00�1 E PO ENGINEERING APRIL 2o1g, SEE / O Oo \ SHEET NO. SE SHEE'� a 9 (o I 6 SOILTYPE,/ 7B w \SCANGRPA�RO-9090 POa , � anon,100 \ 1111111110, *00 100 a5 E, / ;NOTE: NO CONSTRUCTION TRAFFIC SHALL f USE CLING LANE FOR SITE ACCESS TS ui C � i LLI W W100 looD- 71 / ♦ too PHASE I DRAINAGE AREATOSEDIMENT BASIN C=8.12ACRES SCOTT/R. MbLLINS'Z No. 35791 a pow 1/29/21) �'SIOMeT. E�Ol Z Z J a F u ` � Oud ^A d m c IF w (n f H` z O ¢ r - c W z .. H / Wof u ce `u Lu N N N / / / / / 6�� E / / / / / / ✓ PROPOSED SAFETY FENCE, SOIL TYPE \ (/ / �'- - - INSTALL SIGNS "WARNING lot*, i' / 71B / QUICK SAND, KEEP OUT" CSA r' / `` V 40P / / / i / \ RAINAGE DIVIDE (TYP.) �/ _ ces LOW DIRECTION ARROW (TYP.)/ S' - - / / / / / / N Z / EXISTING MRf\GED / / / / / / / / / / / / / - c \ / del / / -� A ( / STEEP SLOPE P) PROPOSED 28" DIVERSION. CV CONTRACTOR SHALL ENSURE / I / zc O/ PROPOSED z8" DIVERS�D4 - / Q POSITIVE SLOPE IS MAINTAINED. D / / CONTRACTOR SHALL ENSURE / / -�5ti c J ` / , / / / \ \ ��/ % / / // / BERM SHALL BE STABILIZED AS / / POSITIVE SLOPE IS MAINTAINED. / / / N a \ ` / / -� / i /\ PROPOSED LIMITS OF DISTURBANCE (TYP.) / / / / A FIRST STEP IN DISTURBANCE./ / BERM SHALL BE STABILIZED AS- I f' - - N \ / / //// /) // / / \ �'� / / / / // / // / / / AFIRST STEP)NDISTURBANCE. / / � Q J DID - > O TS / --- _ > � TS / / / / / / — — / / / / Lu /� �/ / / / / / / / J SOIL TYPE � A / / / / � � H Z B / PHASE I DRAINAGE / �j / // ,/ / // I // / / / / / — �� O AREATOSEDIMENT / / // U BASIN B=4.96ACRES j / j /---- EXISTINGTREELINE(TYPJ // // / / //, / // / / /// /- W Lu PRO0OSEDa8'CLEAN WATER V\ DIVERSION. CONTRACTOR _ _ _ _ _ _ W PROPOSED VDO TD. C SS AI RPPRA LINED / . SHALL ENSURE POSITIVE SLOPE / / - - - - - - - \ - - ' i ' / / / / / / / C) CC i OUTLET PROTECTION WITH FILTER FABRIC - IS MAINTAINED. BERM SHALL B W / J \ - / / / / / �' / / / J G UNDERLAYMENT L-8', Wi= Wz= D-iu" / - - - / ` / / / STABILIZED AS A FIRST STEP IN - i _ - - _0000 \ DISTURBANCE. / / / C _ - -�� 5`IF z < Lu DD LENGTH=369' _ - PHASE I DRAINAGE _ _ - - '/ / i - / / / / I/ 1 D.A.= zo ac. Tc=iz min. / / / / 4. � // / / AREA TO SEDIMENT -_748-' _-- „-: � _ i �� 7 C=o.45, Qz=7.z cfs / / - - - - / - - / / 4. 3 - � � � BASIN E= S ACRE$ - PINOSTAOLLSIGNS�WARNING // / � / / _ � / PROPOSEDVDOI STD. LASSAII / / / / / ,ftfti i — — — _ — — _ / SA / / / / / / — ' Lu UJ 7 RIPRAP LINED OUTLET PROTECTION / / / � / 1� �� / / — i / ' QUICK SAND, KEEP OUT Z ppyOPERTY LIMITS (TYP J WITH FILTER FABRIC UNDERLAYMEN / / i � / - _ _ - - - - - - - - _ / / / / / PROPOSED LIMITS OF DISTURBANCE (TYP. — O (MIN. L=8', Wi=y.S', Wz=aa. D=6") / i / / `' _ _ ' ' — �' _ / — — i / / / / / / / / / /� — — _—!— — — — — — — � �/ I —I 1 ` / / /' - - , / DD LENGTH=475' / — / // / / / / / / / -PROPOSED LIMITS OF TREE CLEARING (TYP. " (LLB O �i / — - D.A.=2.3o ac., Tc=iz min., / C=owoo .45, Qz=3.93 Cfs ciao— / / / / / / / / J W EXISTING PRESERVED `� / / / y' / / // / TS / _ - J — ' - - \ \ \ _ O' ^ry / / / / / / / / // W W �OPOSED SAFETY F NCE, / / , - _ STEEP SLOPES (TYP.) INSTALL SIGNS "WARNING �' / / /' —z,� / / \ / �F / QUICKSAND KEEP OUT" i / / s � / / / � � \ � // / / �- SOIL TYPE � -- � - ��u � / / / � -� (� � / � ~ z W � / / i / / // 8C / / / (n (n = / / / 3 / ` PROPOSEDVDOTSTD.CLASSAI — \ ` / o / / / XISTING ioo' WPO BUFFER (TYP.) Q / / — — / / / / RIPRAP LINED OUTLET PROTECTION / / / V ) \ / PROPOSED i8" DIVERSION. J / ( I U - 5; - ) \ G' y / CONTRACTOR SHALL ENSURE / / / i WITH FILTER FABRIC UNDERLAYMENT— / ' 1 / W POSITIVE SLOPE IS MAINTAINED. / / / i MIN. L=8', Wr Wraz. D=6" BERM SHALL BE STABILIZED AS PROPOSED VDOT STD. CLASS Al RIPRAP LINED ' (I / / PROPOSED LIMITS OF DISTURBANCE (TYP.) - _ Q Lu A FIRST STEP IN DIST}1RBAN �. / i - / / , / / OUTLET PROTECTION WITH FILTER FABRIC \ b DD / / / / / - - � / i I - \ _ J- (� OP UNDERLAYMENT (L=8', W34, W2=9', D=i8") ) (D J _ / ROPOSED LIMITS OF TREE CLEARING (TYP.) / A 1 ( O gang/��\ PROPOSED VDOT STD. CLASS Al RIPRAP LINED / XISTING ioo-YEAR FLOODPLAIN (TYP.) ' / - N EXISTING ioo' WPO BUFFER (TYP. / / / /� �� ' OUTLET PROTECTION WITH FILTER FABRIC J A , ' GRAPHIC SCAL low/ r / "' UNDERLAYMENT L=8' Wi= Wz= D=iB" // �/ / OP ( 3', �', ) z� \40 o so 4o eo /. ia6 I / / / LEVELSPREAbER OUTFALL PIPE SHALL BE TEMPORARILY T gaI BLOCKED DURING CONSTRUCTION, DIRECTING RUNOFFTO / / TP , THE PRIMARY OUTFALL. TEMP. BLOCKAGE SHALL BE REMOVED i I / AT THE TIME OF THE TEMP. BASIN's CONVERSION. / ) / / _ - 52- - - - -1 \ _ - / // / SEE SWM PLAN FOR LEVEL / \ - - . \ \ SEE SWM PLAN FOR J SPREADER DETAILS / , ' 0 / / / EXISTING ST EA y l 40 1 1- OUTFALL DETAILS / \ - / / _ SOILS LINE (TYP.) ` - - EXISTING ioo-YEAR/ 9 1 V -� „ �. - ,� /,4/ / / �� / / / / / ( / SOIL TYPE FLOODPLAIN TYP. / D - ` - - V - - - / / / / ( ) OPOSED LIMITS OF TREE CLEARING TYP. ROPOSED LIMITS OF DIST CE TYP.) / / / - T \ 1 < 1 (( �� — ��\ ( ) �\- / / / / / / 4P + / --E)CSTING zoo-YR FLOODPLAIN PER 17- - PROPOSED FLAT VDOT CL. Al RIPRAP LINED / + ' HEC-RAS ANALYSIS PERFORMED OUTLET PROTECTION WITH FILTER FABRI - _ BY COLLINS ENGINEERING IN C, / / / / / UNDERLAYMENT (L=iS', Wi=6' Wz=7.5' D-i&' — J ® APRIL 2019, SEE WPO 201900027) / / / / ✓Will 0 w a v) JOB NO. 182154 SCALE 1"=40' SHEET NO. 7 CONTRACT R SHALL USE A PO ION OF THE EXISTING EMERGENCY y ACCESS ROAD FOR THE PAVED CONSTRUCTION ENTRANCE. CE DCONTRACTOR SHALL INSTALL A WASH RACK AND ENSURE A=_= - ., i s, - ) \ j / // / w C / MINIMUM 12'x70' PAVED AREA FOR THE CONSTRUCTION ENTRANCE." z x / PROPOSED CONTRACTOR / STAGING AREA �x x r a / �\ / \ PHL�ISE 2'x70' MIN. WAS �CK SF PROPOSED CONCRETE / \ \\ �j \ \ / / %//// ` � 1 WASHOUTAREA / \ \ \/, / / — / LOCATION OF N / \ \ / \ / / j �5� / ) / / / / PORTA-POTTIES a ' \ o/ / / // i -- — / `\ \ r \ \ \ //ice✓ �// Z z a ROPOSED18"DIVERSION. CONTRACTOR SHALL ENSURE \ a / ., J POSITIVE SLOPE IS MAINTAINED. I \ \ - / is CY DUMPSTER BERM SHALL BE STABILIZED AS / \ • • i •'\ \ \ / \ V m C / LIMITS OF DISTURBANCE APPROVED/ / ♦ \ ° _ _ - - - - '/\/ > \ \ L w o J WITH WPOzoig00003 FIRST STEP IN DISTURBANCE UCTION TRAFFIC SHALL / R SITE ACCESS \ / / / LOCATION OF �P FUELING AREA THE FUELING TANK SHALLIE COMPLETELY SURROUNDED BY > 0 A z' DEEP, z' WIDE EARTHEN BERM WITH A HEAVY MIL \ \ a / / l\ \\ / �7Cs RFF\`, / �I /r LLn POLYETHYLENE LINING, OR BE PLACED IN AN IMPERVIOUS / OPEN -TOP DUMPSTER WITH A SIDE DOOR. THE PROPOSED / \ Q) / / / I BERM OR DUMPSTER SHALL CONTAIN FUEL IN THE EVENT OF / / I / A SPILL. CONTRACTOR SHALL ENSURE VOLUME CAPACITY IS \ \ f SLOPES GREATER THAN 3:1 SHALL BE PLANTED WITH NATIVE STEEP SLOPE \ \ I \ O io% LARGER THAN THE MAXIMUM VOLUME OF STORED FUEL. \ r MIX WITH ANNUAL RYEGRASS BY ERNST CONSERVATION SEEDS AT ARATE OF / I P \ \ \ 6o LBS. PER ACRE, OR 1 LB PER i,000 SF, UNLESS SPECIFIED OTHERWISE. I SF \ • . O w L J , — / / / DRAINAGE DIVIDE (TYP.)" LL J - - - / / / / / PROP SED 18\ DIVERSION. CONTRACTOR SHALL ENSURE / / / ysi > POSITIVE SLOPE IS MAINTAINED. BERM SHALL BE STABILIZED AS/ IP / / / A F RST STEP IN DISTURBANCE.IP / PROPOSED STOCKPILE AREA TO BE ENCOMPASSED BY SILT FENCE AT ALL TIMES / // /� IP 2' pRIVATESTREE / TS DC _ _ - - - 4 Los - ----- / / / / \ --_738-- PHASE II DRAINAGE PHASE II DRAINAGE , -' // // / / \ \ SF AREA TO SEDIMENT / / _ _--� — } LOT L9 AREATOSEDIMENT // // // / \ \\ BASIN D-6.z4ACRE5 // -// / '\ / j --- // 16 BASIN C = zo.95 ACRES - _ / / / / \ \ - - _ / / I \ ' - - LOT- / 446-- i/ / / / \ r/ � /� � �-' � I z5 � /I LOT DC -- / / v v --- --- --- / / /-� / I I ( / �� I Iv\ 7 c7 --- PHASE II ---�\\ // // / / i'- I I LOT / POSED'SAFETY FENCE, - - / \ \ / / / - / / i 7 I . • / INSTALL SIGNS "WARNING SAF QUICK SAND, KEEP I /\ LOT / LOT 27 / M Q -,:> , , ,. `... _ _ -PROPOSED i8" DIVERSION. / I \ \/ / / / / / ✓ / / 11 F I ' / / I - N L.L z CONTRACTOR SHALL ENSURE / / \ \ ��- _ � ' � i �- % / � / � / l � • I / / % ' T / POSITIVE SLOPE IS MAINTAINED. / / / / ^ \ \ TP /' �/ / / i i / / / LOT / / / / LOT O Q a a BERM SHALL BE STABILIZED AS / / / / / I \ -' \ SF / - / / / ig � J \ � - / / LIMITS OF DISTURBANCE APPROVED / � / / / � � / / N a A FIRST STEP IN DISTURBANCE. / / / �� \ \ / WITH WPOzoz 0000 . / / / / / •' �� EXISTING PLEASANT GREEN J Q LOV1PROPOs D BAFFLES PHASE I DEVELOPMENT T > O — // LOT \ \ f / \V `A i ////�/ A ° U W u PROPOSED VDOT STD. CLASS AI — — — -- / - / / / / 2. — ' • I 3 / / z \ / - TECTION_ / f / ROPOSEDz8' DIVERSION. i� z % - / 'CONTRACTOR SHALL ENSURE / / / \ / — WITH FIL ER FABRIC UNDEUTLET RLAYMENT \ \ — — _ _ i / / / / / ��\ LOT / / \ L�y ' - (MIN L-8', Wz=q. Wz=zz. D=6") / / / ' - - _ _ - / / POSITIVE SLOPE ISMAINTAINED. // / f 3z // // \ Y m O < W 6, s', �-30 / / i , ERM SHALL BE STABILIZED A5 i � A FIRST STEP IN DISTURBANCE. LEVEL SPREADER 0 LL PIPE � I I SF �, i ✓ Q TEMPORARILY BLOCKED DURING CONSTRUCTION, — / iY / / — — / DW DIRECTING RUNOFFTO THE PRIMARY OUTFALL. / ' �-,iz / / / — II I 9 A� �G� c —TEMP. BLOCKAGE SHALL BE REMOVEDAT NSTRE TIME _ — i / ��5 / / _ — — / kb!PCSED 5A TY FEN ° $�fC \� l /V`� Oj��G I ' TEMP. BLOCKAGE TEMP. BASIN's REMOVAL. DOWNSTREAM — / / / \ — — — — — _ _ _ _ / I INSTALL SIGNS "WARNING I s \ I \ ��(V� SCR 0 \ PROPOSED OUTLET PROTECTION TO BE VDOT STD. — / — — ' — — — _ LASS AlRIPRAP WITH FILTER FABRIC / �1 �' — — i — — / / — — — \ QUICK SAND, KEEP OUT" �T \tom { �Q�\C ` Y / — XISTING ioo' WPO BUFFER (TYP.). / — _ — — — — ° ? i1NDERLAYMENT (L=8', WI-3', W2-9', Dom) _ _ / / / / -� Lu LU z / \ / — .g TING WETLANDS \ ` I of / D / / ' — — / / /' _/ ✓' y/ — — OPOSED VD STD. CLASS Al \ �7 0 F L T W V W / — SEE SWIM PLAN FOR PROPOSED FLAT VDOT CL. Al RIPRAP LINED / — I / �• ` \ \ RIPRAP LINED OUTLET PROTECTION — OUTLET PROTECTION WITH FILTER FABRIC l y / _ i \ / \ WITH FILTER FABRIC UNDERLAYMENT W OUTFALL DETAILS e ^ FLOW DIRECTION ARROW (TYP.) \ /� , / Z � I~ -I UNDERLAYMENT(L=z8', Wz= Wz=zz.7', D=z8") // \; ,� / — \ / f \ S ® \ \ \\\ ( 4 5', ) y• LOT / \ � / i � � � MIN L=8, Wi Wz-az D 6 PROPOSED LIMITS OF DISTURBANCE (TYP. \ \ \ \ 49 W STURBANCE(TYP. — ' O \ \ ji — — — \ — — \ / \ � \ \ LOT (n SEE SWM PLAN FOR LEVEL --- -- 5 J — — — — — — — SPREADER DETAILS j \ — — — — TREE CLEARING (TYP. s / , \ _ _ - --- \- - EXISTING ioo-YR FLOODPLAIN PER i ♦ \ \\ \ Q ---- — — — —� — _ PROPOSED VDOT STD. CLASS Al , \ 0 V / i� ` — — _ _ — - HEC-RAS ANALYSIS PERFORMED \ SF , \ W � RIPRAP LINED OUTLET PROTECTION \ \ BY COLLINS ENGINEERING IN WITH FILTER FABRIC UNDERLAYMENT \ \ \ II \ \\ APRIL 203.9, SEE WPO 202900027) `(MIN. L-8', W1=4.5', W2=12.6', D-6") PROPERTY LIMITS (TYP.) \ / — ✓ / \ \ J / ` D ` \ \ OP \ \ \, / / / // / W EXISTING STREAM \ / r / \ LE EL � ADE 0 TFALL PI ALL E ��QII�� J TEMPORARILY BLOCKED DURING / / / / -. L! / / 1` \ _ - - - \ \\ \ ✓/ I ` \ CONSTRUCTION, DIRECTING RUNOFF TO THE \ \ - - - - / \ / _ \ \ \ 2 \ \ J ) O W�� S CRE - PROPOSED LIMITS O EE CLEARING (TYP.) \ e PRIMARY OUTFACE. TEMP. BLOCKAGE SHALL - - / / O _--- L Z --- EK-- �� A \ \ VA BEREMOVED ATTHE TIME OFTHETEMP. j N ASIN's CONVERSION. DOWNSTREAM PROPOSED OUTLET PROTECTION TO BE VDOT / / \---------.--_ ---�/ \-----------i/\ �\\ \ \'/ \ �� \ �� \ o� // \ TD.CLASS AIRIPRAP LINED OUTLET TP PROTECTION WITH FILTER FABRIC o GE�APHIC �C // ��v \v �� _ / \ \ '(UNDERLAYMENTL8',Wi- Wz-9',D-18") SEE SWMPLAN F SF O 1 1 1 \ w l II o --------- I `,� I 1 SOILTYPE w — \ \ \ OUTFACE DETAILS J I 'T a /// / �� i -� / _ �� // --- - �� A �v �� rtiNE1'-}� \ A \ V V I \ u .�/ f :1 1 I z7 --- --- 4 \\ \ JOB NO. FimcfF 40 ft \ �\ \ \\ ^\ 2 II 11 I \ 182154 - v 0>P 5E ioo-Y FLOODPLAIN / - - - - - - _ _ _ �� \ 1 \ I PER HEC-RAS ANALYSIS \ SCALE / / --_-- ---- �\ 1 I \\ \\ / SEE SW LEV \ \ \ /I\00 O - - M�TC H I �I E - / ERFORMED BY COLLINS o 1\ �\ 1' =4O' \ - ENGINEERING IN APRIL 203 SEE / Oo Oo � SE SHEE'� �i 9 7) o a SPIRE R DIET o Oo OO PO zoi 000z / OO e I \ \ SHEET NO. w - - r I DC / I WIN r \ / / too 00 100 ❑ s / / �00 mom SCOTT/R. Ct�LLINS'Z No. 35791 a pow 1/29/21) �'SIOMeT. E�Ol / \LROc P� e�8e / / ' \ / / 1 / / 100 / u 00 u / ❑ / / /' / / \\ / \ // \ / ' / / /' / /� / / F NOTE: NO CONSTRUCTION TRAFFIC SHALL u USE CLING LANE FOR SITE ACCESS '' C / / ❑ \ w (n f /♦ / \ \ / / / / — -� J f Lu 1010 / ` ' / ' \ \ / W 0 00 DRAINAGE AREA TO SEDIMENT /// // \ \ / \/ // \ \ / // ' / / / // ❑// BASIN C=so.95ACRES G�\NaQ�Eo,�6��s / \ / \ / \ / / / / / / DC / / ❑ \ / NG 5 RO H N � N N / ♦ / \ / / // / Ey.\SSS.�P"CE / ' / / / / S / / ROPOSED SAFETY FENCE, INSTALL SIGNS "WARNING QUICK SAND, KEEP OUT" S \ / \ RAINAGE DIVIDE (TYP.) 4 / LOW DIRECTION ARROW (TYP) 1 N L / EXISTING /M GED/ /V❑\ \— '----'' //❑/''/❑/ /// l / ////�` A/ // � J — — — STEEP SLOP04 Z � Q 7/N � CVPROPOSED LIMITS OF DISTURBANCE (TYP.) J SLOPES GREATER THAN 3:1 SHALL BE PLANTED WITH NATIVE STEEP SLOPE ;-@—/ /LLIMIX WITH ANNUAL RYEGRASS BY ERNST CONSERVATION SEEDS AT ARATE OF / / PHASE II DRAINAGE now 6o LBS. PER ACRE, OR m LB PER i,000 SF, UNLESS SPECIFIED OTHERWISE. / / / / ` / j / J H1 O / ❑ AREA TO SEDIMENT / — — — — — / / / / / / / / / / ' / ® ~� U BASIN B=4.96ACRES / / --- / / / /a /r /// / / / 07 w \ ` / ❑ / ^ / / / — DC _ ss _ / / PHASE II DRAINAGE / / / / / / / / / W // / \\ PROPOSED 28" CLEAN WATER / / /' = /'— — ---' // AREA TO SEDIMENT P DIVERSION. CONTRACTOR / / _ _ BASIN E = o ACRES _ / / W PROPOSED VDO STD C S� Al RIPRA LINED .SHALL ENSURE POSITIVE SLOPE - - - ' - - ' 4• 3 �� O / OUTLET PROTECTION WITH FILTER FABRIC -' IS MAINTAINED. BE SHALL B i UNDERLAYMENT (L-8', W14, Wz=9', D-iu") / / / / \ STABILIZED ASAFIRSTSTEPIN, / / _� / - ---' ' - %� DISTURBANCE. F �1 ' QLu LL Old /� /// '// \ �� // // / / /// ❑ / /// // /--//-- ----- PROPO}S SAFET NCE, / / / / / ///-_--/ / Y PROPOSEDVDor�S❑LASSAI,/ / / / /' -- -/ INSTALLSIGNS"WARNIN // / / DDi'/ /' /' /' / / �' ' �' Lu w Z / \ / - QUICKSAND, KEEP OU - / / / '" O RIPRAP LINED OUTLET PROTECTION � / / / / / � / / � / ppyOPERTY LIMITS (TYP) WITH FILTER FABRIC UNDERLAYMEN / / i� / — _ ' , — — — �❑ / / / / / / / / PROPOSED LIMITS OF DISTURBANCE (TYP. _ �H/� (MIN. L=8', Wi=y.S', Wz=az. D=6") V / -PROPOSED LIMITS OF TREE CLEARING (TYP. ul LL EXISTING PRESERVED **kOPOSED SAFETY FENCE, \ / / / �/ // / / '' T� }42' — — / // / / //I L H Lu STEEP SLOPES (TYP.) INSTALL SIGNS "WARNING SAF / / / / a3 \ \ / 5F \ / QUICK SAND, KEEP OUT" / DC / / / -i - / / - - _ - �'hu / / / ( / -- ~ ` Lu XISTING ioo' WPO BUFFER (TYP.) r a U) PROPOSED VDOT STD. RIPRAP LINED OUTLET PROTECTION WITH FILTER FABRIC UNDERLAYMENT— W �_%/� / (MIN. L=8', WI=4.S; W2=12.5', D=6") -�� / / / ) / / ''� PROPOSED LIMITS OF DISTURBANCE (TYP.) — — \ / PROPOSED VDOT STD. CLASS Al RIPRAP LINED / / w OUTLET PROTECTION WITH FILTER FABRIC j' \ Q OP UNDERLAYMENT (L=8', W34, W2=9', D=i8") \ ) f n ROPOSED LIMITS OF TREE CLEARING (TYPr / A O PROPOSED VDOT STD. CLASS Al RIPRAP LINED / XISTING moo -YEAR FLOODPLAIN (TYP)` EXISTING moo' WPO BUFFER (TYP. / / / : - RIPRAP` GRAPHIC SCAL N / / ' OUTLET PROTECTION WITH FILTER FABRIC J A -756-- / V Au.�-� / / / / / i.�/ / �\ / OP UNDERLAYMENT (L=8', Wm=3', Wz=9', D=mB") �\40 o zo 40 so / / /i®6 LEVELSPREAbER OUTFALL PIPE SHALL BE TEMPORARILY T BLOCKED DURING CONSTRUCTION, DIRECTING RUNOFF TO/ ' TP - / THE PRIMARY OUTFALL. TEMP. BLOCKAGE SHALL BE REMOVED ��.�../ 952— _ _ ._ , \ \\—— / / AT THE TIME OF THE TEMP. BASIN'sCONVERSION. / SEE SWM PLAN FOR LEVEL / / /' \ / ( � , / / / SEE SWM PLAN FOR J SPREADER DETAILS / / EXISTING STREA y 40 / / / �/ o OUTFALL DETAILS JOB NO. EXISTING moo -YEAR/ 9 1 V < S ❑ /' / / / �n� / / / / / / /' / 182154 FLOODPLAIN (TYP.) /✓ D — — — �\ _ \ — — — / / / / / / / — — / „ \ ' / _ OPOSED LIMITS OF TREE CLEARING TYP. / — / / ROPOSED LIMITS OF DIST CE (TYP.) / _ / / / / SCALE 1 < 1 (f �` � _ ��\ ( ) / �� - � / / _ / / - / � OP + / - --E�STING zoo-YR FLOODPLAIN PER / / j `� l � � / _ -/ \ "'/ '' � ' // / / � ' 1"=40' / / / PROPOSED FLAT VDOT CL. Al RIPRAP LINED / + ' HEC-RAS ANALYSIS PERFORMED , - / OUTLET PROTECTION WITH FILTER FABRI - BY COLLINS ENGINEERING IN / - - - �' / / / SHEET NO. /C, �' / / /' UNDERLAYMENT (L-25', Wm=6' Wz=7.5' D-i8") — J ® APRIL zom9, SEE WPO zom9000z7) / /' ' ✓ _ _ _ - / / / // / j �' y v \ \ ✓ \\ \ / / .. 400' 00 00 I — \ PEE — — i ♦ / ♦ / RP�PRooJslBe ♦ ♦ ♦ \ / w—- / IP _ — NO : NO CONS CT ON TRAFFIC SHALL�_. U E CLING LAN F TE ACCESS 6 s / — -- ♦ Ii s CIP Lu I / \ p/1 �SCOTT/R. Cb3,LINSZ u No. 35791 a o� 1/29/21c�R �5''SIOMAT. E�Ol ZZ O J e ` C u d' m C IF ,,A^A W (n f r H z ¢ - 4 Z .. U H Wof u uj ln; as o u 00 ' w 00 ow 41111111 / / / / /' / / PHASE III DRAINAGE Lu AREA TO SEDIMENT s .. ¢ °� N BASINC=9.66ACRES ROP �6 75 / R POSEDSA E YENCE \ \ / i Lu O / ` / I INSTALLSIGNS"WARNING QUICK SA D KEEP OUT" � \ J/ _ _ RAINAGE DIVIDE (TYP.) / / / \ / / / / /� I x_ 177 / LOW DIRECTION ARROW (TYP.) / / / ro — IP �� CA CII _ r M \ / \XISTINGM GED // /// / // \ -- / O /y / 4gl/ // / r /c / STEEP SLOPES(TYP.) / / / / PHASE III DRAINAGE AREATOSEDIMENT \ \ BASIN B=7.83ACRES — // I / / M M / / / W � J PROPOSED LIMITS OF DISTURBANCE (TYP.) / IF / v/ / / a Q\ O 1 750 ��/ / / c� 756� / / / / / u uj Lu / PROPOSED VDO STD. \CLASSAI RPPRA LINED \ / / — — _ �' ' ' 8 / / / / / / OUTLET PROTECTION WITH FILTER FABRIC . / / — - �/ 1s / /� PES GREATER THAN z=g', D=i8 ") / / / / S 3a ALL BE PLANTED WITH NATIVE STEEP SLOPE UNDERLAYMENT (L=8', Wi=3', W> RYEGRASS B RNST CONSERVATION SEEDS AT A RATE OF / _ �13s /'/ / �./. /� 6o LBS. PER ACRE, OR 1 LB PER i oo SF, UNLESS SPECIFIED ISE — .'I-2� ui PHASE III DRAINAGE AREA TO SEDIMENT TRAP S=o.81ACRES 06 / PROPOSED VDOI S1 D. LASS AI, y / / / ,' /.... .. �- -_ `-.--• I -.— — / / — — -7q4- — — _ _.. � /i /. i iw W \ / k / RIPRAP LINED OUTLET PROTECTION / / *: 6 / — _PROP SED SAFETY NCE;"'� --_ _ PROPOSED LIMITS OF DISTURBANCE (TYP. —' OPERTY LIMITS (TYP.) WITH FILTER FABRIC UNDERLAYMEN '/ .r / �-� i' / / rn INSTALL SIGNS "WARNING (MIN. L=8', Wi=4.5', Wz=aa. D=6�.) / / / s 6� _ — / QUICK SAND, KEEP OUT" P / \ — r►/ O PROPOSED LIMITS OF TREE CLEARING (TYP. � - f C� Lu EXISTING PRESERVED *4pkOPOSED SAFETY STEEP SLOPES (TYP.) INSTALL SIGNS "WARNING SA / / /1♦/:—//r /1 736 F QUICK SAND, KEEP OUT" ----- W >� 3 °� / / XISTING ioo' WPO BUFFER (TYP. \ /� - /� PROPOSEDVDOTSTD. CLASS AI �- — I / / — / / / RIPRAP LINED OUTLET PROTECTION v / 74 / �� L Q TT_ / WITH FILTER FABRIC UNDERLAYMENT—. \ � � �' / : I (MIN. L 8', Wa=4.5, W2=12.5, D 6) T, PROPOSED VDOT STD CLASS AI RIPRAP LINED I PROPOSED LIMITS OF / OUTLET PROTECTION WITH FILTER FABRIC I DISTURBANCE (TYP.) 1 \ G Q W / -- QP. UNDERLAYMENT(L 8, Wi 3, Wz g', D i8') / PROPOSED ROCK WEIR OUTFALL l \ 1 I ROPOSED LIMITS OF TREE CLEARING (TYP.) - �\ I \ C ) -,PROPOSEDVDOTSTD. CLASS AI RIPRAP LINED XISTINGi00-YEARFLOODPLAIN(TYP.) GRA_P JSCAI}, \ N ( / OUTLET PROTECTION WITH FILTER FABRIC J EXISTING ioo' WPO BUFFER TYP. / / / \ \ / OP ) ao o zo ao `./ UNDERLAYMENT (L 8', Wi=3', Wz=g', D=iB" — — / / LEVELSPREAbER OUTFALL PIPE SHALL BE TEMPORARILY` T �58- / / BLOCKED DURING CONSTRUCTION DIRECTING RUNOFFTO r" \— TP / THE PRIMARY OUTFALL TEMP BLOCKAGE SHALL BE REMOVED _ IN FE _ — — c — — _ _ _ \\ — AT THE TIME OF THE TEMP. BASIN's CONVERSION. / SEE SWM PLAN FOR LEVEL / — - _ ��— — SF _ / /� / SEE SWM PLAN FOR / / - — EXISTING STREAM — — 1 igeh r 40 / / / / / �' 952 \ \ / / OUTFACE DETAILS_ I SPREADER DETAILS — — \, / / / /� / a \ \ / -- / ,/' —J� -- �- � / ' / .�-'i /// JOB NO. EXISTING ioo YEAR /9 I \ \ — — / / / — — — // — \ _ _ —t _ / / 182154 FLOODPLAIN(TYP.) D ——.\ _— --- -I_! / ----� l l� / // /�__ // / _ f OPOSED LIMITS OF TREE CLEARING (TYP.) PROPOSED LIMITS OF DIST CE (TYP.) — _ — — \ /' / — , — _ —.�--_----- / /�/ SCALE PROPOSED FLAT VDOT CL Al RIPRAP IN 111 =40' z // OUTLET PROTECTION WITH FILTER FABRI — J — — _ — — — — �' / / SHEET NO. j % _: / i j:% / / i UNDERLAYMENT (L=iS', Wi 6', W2=7.5' D=18") STORMWATER MANAGEMENT FACILITY 'C' DETAIL, SCALE 1"=30' CONTRACTOR SHALL CALL THE COUNTY I NSPECTOR& ENGINEERING DEPARTMENT 24-HOURS BEFORE, ANY EFOREANY / / \ \ \ / / / -- - • s y\. \ \ \ ANTICIPATED CONSTRUCTION ACTIVITIES FOR THE BMPs.THIS- ISINCLUSIVEOFWHENTHEUNDERGROUNDDETENTION SYSTEM SUBGRADE IS READY FOR PIPE CONSTRUCTION, BUT BEFORE STONE BEDDING IS INSTALLED. SEE THIS SHEET FOR SCALED PROFILES OF THE SWM FACILITY, TYP. \ PROPOSED UNDERGROUND DETENTION SYSTEM TO ATTENUATE RUNOFF©© \ \ \ \ + CAUSED FROM THIS DEVELOPMENT. SEE THIS SHEET & SHEET zo FOR DETAILS. 0120" INV. 719.45' \ PROPOSED ACCESS MH w/ STAIRS FOR INSPECTION & \ 012C" INV. 719.42' _ \ \ MAINTENANCE, TYP. ACCESS MH TO BE LOCATED UPSTREAM & RESTRICTIVE STEEL WEIR PLATE, AT LOW POINT, TO / / DOWNSTREAM FROM RESTRICTIVE WEIR PLATE AND NEAR THE - _ INFLOW POINT AT THE HIGH END OF THE SYSTEM, AS SHOWN. \ \ DRAIN THE SYSTEM. SEE DETAIL ON THIS SHEET. / y 39.00 LF O 05%' \ PROPOSED STR. C-io1, A LOWER 0i8" LOW -FLOW O - F -\- - - \ OUTFALL CARRYINGTHE TREATMENT VOLUME \ \ FLOW & SMALLER STORM EVENTS- \ 0120" IN 7196s': \; PROPOSED 61' LONG FLAT LEVEL SPREADER C. LS TO HAVE A 1z DEEP PLUNGE POOL & 6" WIDERIGID LIP. LS TO INCLUDE AVDOT CL. Al RIPRAP -- / �� S \ \ i p� O \ /\ °\ ''-. PROPOSED ROADWAY & SIDEWALK TO ,\ \\ PROVIDE ACCESS TO SWM FACILITY. LININGI NDASLANK ENT DOWNSTREAM E Al / / /y \` J \� \ b RIPRAP LINED EMBANKMENT DOWNSTREAM / 717. T \ �3 \ ' 0120" I�i�N✓✓✓V. 719.65 \ \3 / FROM THE RIGID LIP EXTENDING TO THE EXISTING / / GRADE. ALL RIPRAP TO INCLUDE FILTER FABRIC / 0-10': MAX • I \ - UNDERLAYMENTS&BEA MIN. OF 18"DEEP. SLOPE= 2%� i 3 / PROPOSEDSTR.Cao9,AING LARGER STORM HIGH -FLOW - - _ - / BYPASS OUTFACE CARRYING LARGER STORM EVENTS (31.51 LF , \ \ \ ✓ / -/\\�� T ° 1 \ \ OF 0z8" HDPE (al zo.34%,=7z5.gz, 10=7ig.5z) S \ 717.4 �2 "PROPOSED STR. C-io7, A 08" LOW -FLOW OUTFALL CARRYING \ \/\ 0-35': MAX. THE TREATMENT VOLUME FLOW TO LEVEL SPREADER'C'(6.00 LF PROPOSED VAR. WIDTH. OF 08" HDPE Cal i.o%, II=718.42, 10=718.35) SWM&ACCESS ESMT. \ / �.LQPE= 3% 7I'6. 5 j. C\, PROPOSEDSTDA P LINED O RON _. WITH FILTER FABRIC UNDERLAYMENT (L=B, W1=, W2=9', D=28") . \ S 718.35- BEGINNING OF LEVEL SPREADER EXISTING 100-YR FLOODPLAIN PER \ \�717.1- BOTTOM OF LEVEL SPREADER j HEC-RAS ANALYSIS PERFORMED \ \ \ �\ `ti�� IN �� ii \ �. BY COLLINS ENGINEERING IN APRIL \ \ \ \ \ 2019, SEE WPO 201900027. /�°� � I \ I� 718.1- TOP OF LEVEL SPREAD70 ER \ \ \ \\ '�j ' 71 16 7161.65 71714 II w `I I c \ \ PROP SED 35'Lx6i W VEGETATED FILTER ( I 1 I\ \\ \ \ , I \ \\ / / \ / \ \ • • . \ \ \ A STRIP. FILTER STRIP TO BE UNIFORMLY GRADED TO THE SLOPES SHOWNTO \ \ \ \y\ \ o \ ENSURE SHEET FLOW BELOW THE LEVEL C \ \ \ \ �s SPREADER. CONTRACTOR TO TIE BACK PROPERTY \\ GRADES AT 6:1&PREVENT SOIL LINE, TYP. \ \ COMPACTION BY HEAVY EQUIVALENT \ WITHIN THE LIMITS OF THE FILTER STRIP. \ \ \\ SEE SHEET zo FOR ADDITIONAL FILTER \ \� ` 2+ STREAM` \ \ \ STRIP DETAILS& DESIGN REQUIREMENTS. n / Y 3 JFFER; YR PROPOSED VARIABLE WIDTH SWM &ACCESS ESMT. \ \ \ \ \ \ \ \ \ \ PROPOSED FLAT VDOT CL. AI RIPRAPX, LINED OUTLET PROTECTION WITH \ \ \ \ \ \ \ \ FILTER FABRIC UNDERLAYMENT (L 28',W14.5,W2=1z.7,D 28") -726 STORMWATER MANAGEMENT FACILITY 'D' DETAIL, SCALE 1"=30' CONTRACTOR SHALLCALLTHE 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. / P(ROPFERTY LINE, TYP._/ / L / / / / EXISTING 100-YR FLOODPLAIN PER / HEC-RAS ANALYSIS PERFORMED / BY COLLINS ENGINEERING IN APRIL / 2019, SEE WPO 201900027) R PI I ) / / 1� 1 / PROPOSED 42' LONG FLAT LEVEL SPIRE 'D'. LS TO HAVE A 22" DEEP PLUNGE PC / 6" WIDE RIGID LIP. LS TO INCLUDE A' / CL. Al RIPRAP LINING AND ASLOPED31 VDOT CL. Al RIPRAP LINED EMBANKI / DOWNSTREAM FROM THE RIG EXTENDING TO THE EXISTING GRADE ' RIPRAP TO INCLUDE FILTER Fi UNDERLAYMENTS & BE A MIN. OF 18" 1 �I ( STR/D-105 PROPOSED VARIABLE WIDTH \ SWIM & ACCESS ESMT. \ f PROPOSED SWM FACILITY'D'. SEE THIS I"/ SHEET & SHEET 20 FOR DETAILS. / \ 0120" INV. 695.53' j ICTIVE STEEL WEIR PLATE, AT LOW POINT, TO AIN THE SYSTEM. SEE DETAIL ON THIS SHEET. ISED STR. D-1o1, AN ELEVATED 018" HIGH -FLOW SS OUTFALL CARRYING LARGER STORM EVENTS 98 ` n EE THIS ISHEET FOR C - SCALED PROFILES OF HE SWM FACILITY, TYP. I i SZF D�1p3 r/E pr STR 104 r `1+ OO O RQd \ \ \ \ J 0120" INV. 695.74' - - - 71 G" + • \ � 111 1111 ' v \ \ \ / PROPOSED ACCESS MH w/ STAIRS FOR INSPECTION & {6A 0.'69 MAINTENANCE, TYP. ACCESS MH TO BE LOCATED UPSTREAM & DOWNSTREAM FROM RESTRICTIVE WEIR PLATE AND NEAR THE HIGH END OFTHE SYSTEM, AS SHOWN. 1 / ✓j" 0120" INV. 695.87' / a= 101i0" INV 69581' \\ o _ 71/ av 0120" INV. 695 60' / -0120" INV. 695.66' 26.00 LF PROPOSED ROADWAY & SIDEWALK TO -. STIR D-102/ / PROVIDE ACCESS TO SWM FACILITY. _ / PRO POSED STR. D 107, A LOWER Oz5" LOW FLOW OUTFALL CARRYING THE TREATMENT VOLUME FLOW & SMALLER STORM EVENTS (6.88 LF OF O15 HDPE Cal 3.78%, II 695.47, 10=695.21) � / 00 '11 PROPOSED 08" LOW -FLOW OUTFALL CARRYING THE III= TREATMENT VOLUME FLOW TO LEVEL SPREADER'D' SLOPE-V12% (7548 LF OF 08" HDPE Cal o.So%,11=6g5.11, 10=694.73) \ � / PROPOSED VDOT STD. CLASS Al RIPRAP LINED OUTLET PROTECTION I , g� / WITH FILTER FABRIC (UNDERLAYMENT L 8, W1=3', W2=g', D=aB') lll-1 PROPOSED FLAT VDOT CL. Al RIPRAP LINED \ \ ' \ / OUTLET PROTECTION WITH FILTER FABRIC \ 693.6 O/�j / IAV 7 // I.: / / IIII11=11 / UNDERLAYMENT (MIN. L=9', Wz=6', W2=6', D=28') \ + .� \ �; / 694.73- BEGINNING / / 1 111- E OF LEVEL SPREADER / I / OB0T / / /LEVEL SPREADER 0 / 0-35': MAX. 693.05 \ f�° 9 / III \ QO / , 694.5- TOP OF / /WP0' STREAM IIEIII / / SLOPE 3% \ / / / [ LEVEL SPREADER BYIFFER,-TYP. PROPOSED Lx z'W VEGETATED FILTER 4 6 35' 4 STRIP. FILTER STRIPTO BE UNIFORMLY i GRADED TO THE SLOPES SHOWN TO. ENSURE SHEET FLOW BELOW THE LEVEL \ t� SPREADER. CONTRACTOR TO TIE BACK \ / GRADES AT 6:1&PREVENT SOIL \ COMPACTION BY HEAVY EQUIVALENT / WITHINTHE LIMITS OFTHE FILTER STRIP. SEE SHEET 20 FOR ADDITIONAL FILTER STRIP DETAILS & DESIGN REQUIREMENTS., \\ 6 3.8 693. 5 "PROPOSED 100-YR FLOODPLAIN PER HEC-RAS / 1 -'.ANALYSIS PERFORMED BY COLLINS ENGINEERING IN APRIL 2019, SEE WPO 201900027) III \ \ E PROPOSED 0120"CMP UNDER DETENTION SYSTEM AT o.5o%(F 18 OF COVER REQUIR 10-yr PEAK WSE= 2-yr PEAK WSE= 1-yr PEAK WSE= PROPOSED STR. C-iog, A HIGH -FLOW BYPASS OL LARGER STORM EVENT' HDPE Cal 20.34%, II= PROPOS OUTFJ FLOW & SA PROPC THE TREA 745 745 740 740 XISTING GRADE 735 735 PROPOSED iROUND GRAD 11NIMUM =D, TYP.) 730 Ll PLATE. 730 PROPOS DWEIR SE THIS SHEET&SHEET2 FORDET ILS. 729.98 726.78 725.96 VDOT 4 H-i 725 RIM=72 .zo 725 ROPOSE D FLAT DOT CL. I RIPRAP J ELEVATED 018" LINED C UTLET PROTECTIC NWITH TFALL CARRYING _STR C-102 FILTER FABRIC NDERLA MENT (32.51 LF OF 018" VD T MH-1 (L=28', W1=y.5', 2=1z.T, =28") 725.92, 10=719.51) Af RIM 724.10 720 719.42 719.40 Q :D STR. C-1o1, A LOWER 018" LOW -FLOW ,LL CARRYING THE TREATMENT VOLUME IALLER STORM EVENTS (33.4o LF OF 018 HDPE Cal z.66%, II 719.40, 10 718.5i) 715 ISED STR. C 1o7, A 08 LOW FLOW OUTFALL CARRYING WENT VOLUME FLOW TO LEVEL SPREADER C (6.00 LF - OF 08" HDPE Cal 1.o%, 11=718.41, 10 1 =718-35) PROP SED STR C-1o3, A Oi8" HI H-FLOW -105' BYPAS OUTFA L (59.72 L F OF 0z8' HDPE Cal 018"HIGH-FL W BYPASS 71 0 4.49%, 1=729.42, 0=726.67 OUTF LL WITH VDOT E -1 71 0 8 .6z LF OF H PE % 11=716.57,1 =712.20) J J L0 N O Ln ^ r7 ww N11) N N C7 C7 n r^ r^ r n r n W li PROFILE SCALES r=5' (V) 1'=50'(H) 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 FALL AND WINTER MONTHS. INSPECTIONS SHALLTRIGGER 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 TW ICE A YEAR TO PREVENT FURTHER WOODY GROWTH AND SPOT RE -VEGETATION OFTHE 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 AT A MINIMUM: 1. ENSURE FLOW PATHSARE NOTSHORT-CIRCUITED INTHE LEVELSPREADER ANDTHROUGH 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%OF THE FILTER STRIP AREA. IN THE EVENT MAINTENANCE IS REQUIRED DURING THE ABOVE NOTED INSPECTIONS, CORRECTIVE MEASURES SHALL BE COMPLETED IMMEDIATELY. 710 S II D-2o, 705 RVDOT MH- 1 =7o6.5i PROPOSE RADE PROPOSED STR. D-203, AN O18" HI H-FLO\A BYPASS OUTFALL (118.6g LF OF 01 " HDPE 700 @ 2.87%, 11=695.78, 10=692.3 ) PROPOSED STR. I -io5, AN 18" -14 4 HIGH-F OW BYP SS OUTF LL VDOTM -1 W/ VD0 ES 1(1 . 7 LF OF 18" RIM=6g5 00 HDPE Cal 1.o0 , 11-692.1 , 10=692 03) 695 m PROPOSED FLAT VDOT C. Al RIPRAP LINED rL ITI T DDnTC TlnKl \A/ TU CII TC De DDIr PROPOSED STR. D-1oi, AN ELEVATED 028" HIGH -FLOW OUTFALL CARRYING LARGER STORM EVENTS (6.6o LF OF O18" HDPE Cal g.og%, 11=703.50, 10=7o2.go) PROPOSED WEIR PLATE, SEE THIS SHEET & SHEET zo FOR DETAILS. 705 PROPOSED SWM FACILITY -D', A 0120" CMP UNDERGROUND DETENTION SYSTEM Cal o.5o%. 10-yr PEAK WSE=705.28 2-yr PEAK WSE=704.16 1-yr PEAK WSE=703.48 NG .• . PROPOSED STR. D-107, A LOWER 015" LOW -FLOW OUTFACE CARRYING THE TREATMENT VOLUME FLOW & SMALLER STORM EVENTS 6.88 LF OF 01 "HDPE . 8% 11=6 10=6 .21 ( 5 Qa 3 7 95 47, 95 ) PROPOSED 08" LOW -FLOW OUTFALL CARRYING THE TREATMENT VOLUME FLOW TO LEVEL SPREADER'D' (75-48 LF OF 08" HDPE Cal o.5o%, 11=695.11, 10=694-73) >> UNDERLAYMENT (MIN. L=g', Wi=O6' W=6', D=18") J n l W D 00J w W . D r,0m OO m 0) 7 CD co c0 c0 W Ll_ PROFILE SCALES 1"=50'(H) 0+50 1+00 1+50 2+00 2+50 2+75 SWM FACILITY D SECTION 0120" WEIR PLATE'C' DETAIL NOTE: SCALE:1"=5' WEIR PLATE TO BE SECURELY BOLTED, OR SIMILARLY FASTENED, TO THE DETENTION SYSTEM. 9.54' ELEV.=729.42' (TOP OF PIPE; OVERFLOW WEIR IS HYDRAULICALLY EQUIVALENTTO AN ORIFICE WITH AN APPROX. DIAMETER OF 026.53" ELEV.=725.92' INSTALL TRASH RACKS ON ALL ORIFICES, TYP. SEE THIS SHEET REINFORCED 12 GA. FOR DETAIL, OR EQUIVALENT. STEEL PLATE ELEV.=719.4 2' (BOTTOM OF F MANUFACTURE / INSTALL ONE (1) 05" LOW -FLOW ORIFICE IN THE STEEL WEIR PLATE ATTHE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION 729.42') UNDERGROUND DETENTION SYSTEM CONSTRUCTION NOTES: CONTRACTOR REQUIREMENTS: 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK COVERED UNDER THESE PLANS. 2. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFY THE DESIGNER OF ANY VARIANCE FROM THE PLAN. 3. REFER TO THE APPROVED CONSTRUCTION PLANS FOR ANY DETAILED SITE INFORMATION. 4. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES. 5. THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE UNDERGROUND DETENTION SYSTEM ON A DAILY BASIS. FACILITY CONSTRUCTION: 1. UNDERGROUND DETENTION SYSTEMS SHALL ONLY BE ACTIVATED AFTER THE CONTRIBUTING DRAINAGE AREAS ARE COMPLETELY STABILIZED. IF THE LOCATION OF THE UNDERGROUND DETENTION SYSTEM WILL BE USED AS SEDIMENT TRAP OR BASIN DURING THE CONSTRUCTION PHASE, THE CONTRACTOR SHALL DE -WATER, DREDGE AND RE -GRADE THE SEDIMENT CONTROL DEVICE TO THE DESIGN DIMENSIONS REQUIRED FOR THE UNDERGROUND DETENTION SYSTEM. 2. THE CONTRACTOR SHALL ASSEMBLE CONSTRUCTION MATERIALS ON -SITE, MAKING SURE THEY MEET DESIGN SPECIFICATIONS AND ARE PREPARED AT STAGING AREAS WHEN POSSIBLE. 3. THE CONTRACTOR SHALL ADHERE TO THE MANUFACTURER's MINIMUM REQUIREMENTS AND THE REQUIREMENTS SHOWN ON THIS PLAN. FACILITY MAINTENANCE: MAINTENANCE OF THE UNDERGROUND DETENTION SYSTEM(S) IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE FACILITY. DURING THESE INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER: 1. ENSURE SEDIMENT ACCUMULATION DOES NOT OCCUR WITHIN THE PIPE SYSTEM. 2. INSPECTTHE CONDITION OF STORMWATER INLETS TO THE PIPE SYSTEM FOR MATERIAL DAMAGE. 3. INSPECTTHE PIPE SYSTEM FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES. 4. INSPECT OUTFALL CHANNEL(S) FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, ETC. 5. INSPECT CONDITION OF ALL TRASH RACKS FOR EVIDENCE OF CLOGGING, LEAKAGE, DEBRIS ACCUMULATION OR OTHER FAILURES. 6. INSPECT MAINTENANCE ACCESS TO ENSURE IT IS FREE OF WOODY VEGETATION. 7. INSPECTTHE ACCESS MANHOLES TO ENSURE THEY CAN BE OPENED AND OPERATED. 8. REPAIRAND REPLACE AS NECESSARY. FACILITY INSPECTION: MULTIPLE INSPECTIONS ARE CRITICAL TO ENSURE THE UNDERGROUND DETENTION SYSTEM(S) ARE PROPERLY CONSTRUCTED. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND INSPECTOR PRIOR TO INSTALLATION. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR, WITH THE ENGINEER AND INSPECTOR, DURING THE FOLLOWING STAGES OF THE UNDERGROUND DETENTION SYSTEM-S CONSTRUCTION PROCESS: 1. PRE -CONSTRUCTION MEETING 2. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) 3. EXCAVATION/GRADING (E.G., INTERIM/FINAL ELEVATIONS) 4. WHEN THE DETENTION PIPE SUBGRADE IS READY FOR PIPE CONSTRUCTION, BUT BEFORE STONE BEDDING IS INSTALLED. 5. AFTER STONE BEDDING IS PLACED AND COMPACTED BUT PRIOR TO PIPE INSTALLATION. 6. ATTHE TIME OFTHE PIPE INSTALLATION. 7. AFTER PIPE INSTALLATION, BUT PRIOR TO PLACING BACKFILL & FILL OVER THE SYSTEM. 8. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) 0120" WEIR PLATE'D' DETAIL NOTE: WEIR PLATE TO BE SECURELY BOLTED, OR SIMILARLY FASTENED, TO THE DETENTION SYSTEM. OVERFLOW WEIR IS HYDRAULICALLY EQUIVALENTTO AN ORIFICE WITH AN APPROX. DIAMETER OF 022.64" INSTALL TRASH RACKS ON ALL ORIFICES, TYP. SEE THIS SHEET FOR DETAIL, OR EQUIVALENT. SCALE: i"=5' 8.00' MANUFACTURE / INSTALL ONE (1) 02.25" LOW -FLOW ORIFICE IN THE STEEL WEIR PLATE AT THE LOW POINT OFTHE DETENTION SYSTEM (INVERT ELEVATION 695.5o) ELEV ELEV NFORCED 12 GA. STEEL PLATE ELEV.=6g5.5o' TT/R. C>1LLINSZ No. 35791 ,a 1/29/21 _�4J Zz O a O N U w ca D Z J Z O .a-, F > z W 7 T_ I%- co C>7 F � N 01 4 co F in Lij J \J_ U) V/ J 1- 4 W LIJ Lu Q uj I� LL 0 Ln U w tu a t=Jl JOB NO. 182154 SCALE AS SHOWN SHEET NO. 18 1 1131 G R-74zs7' - * _ / F E 74z:83 /� ✓ / \ / / PROPOSED 2o' PUBLIC DRAINAGE EASEMENT 180 G R- z6 742.5oi -~ ,.• / _ / / / / 1 1 •'., J •.: .: i 35 / s �- 56' PU 1SCOTT R. LINS Z I / - - - - - - 'PROPOSED DRAINAGE SYSTEM 1 / / / 11 11 MCCOMB STREET / � '� LOT G R 740 PROPOSED 8" HDPE ROOF/FOUNDATION DRAIN - _ \ \ 2 ' / I D B QI IC STREET / 1 O $3 SYSTEM w/io' PRIVATE EASEMENT (TYP.) / / 2 / 8234 PG. z / / U No. 35791 � 179 F - %5,0 79'� I ° � . / . i • PROJECT BOUNDARY (TYP. 97 o / \ / z �3y / \ \ l'�0 1/29/21 yvD-26/ \ \ PHASE III LOT ,F (FUTURE) ROPOSED DRAINAGE SYSTEM _ / z o I LOT 1 / /// \\ \ - _ \ / / ti 177F R�oh7p7PY w ` / 8 \\ 3 \ PROPOSED 8" HDPE ROOF%FOUNDATION DRAINf / i AR7 • ,� -_ - YP-2 Y+ / � ' \ \ � _ SYSTEM w/ io' PRIVATE- EASEMENT (TYP J YD-2A�T.�a-` .� 78. � •r \\ �\ \ �' \ / / xh� O ;'/ ,4/c F � � 5 / //�/------- . 73533- r� . • 34 I// 34 / ,736 \ \ 26B \ \ \ \ - _ / / F� / so FFE=73 3zB � .. • , , >; .. \ \ \ / , / 4-h�.. : ? _ SMT 7 433 � - - - - ^�� p.�-�-E PROPOSED 12-- HDPE ROOF/YARD DRAIN / SYSTEM w/io' PRIVATE EASEMENT(TYPJ - - - - - - ('�� S / /' M Q Fs\ FFE=733 5 58 / / 023xo son- /Z z1 p 5y34 P \/J j//"� m .-. 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LL . _ � \ M � 7 0, / / / FFE=7383 6z / 55 f I c \ = I FFE= 78. 7 Fj FE 738. o \• 736 FFE 737 3 /) �. . �`. / / j .. T/ R= i .6 BSMT 730;831 736 73 33 1 / - SMT-7z L 00 / 7 7 7 I - FFE= LOT I BSMT 7z8.5o f I? / / Job »; A =730.1 - ` !' ` / LOT 33; / LOT / 1 / LOT ' -/ �px ✓ / 0.8 63 /__ - )1�33 \ F / \ \ z6 / / 1 I \ L 79 I � LOT � / LOT I I f LOT I � .• ` •' • `.• `.• `. . • 6. F; _ � ,So � �+ �. .. - � 73 / 54 � \ 1 78 7 0 77 r 6 T= z6.1 I � 7 7 / � .. � oo -, . \ SMT=721.00 � I L I 7 1 7z8 P 1 75 I\ .. � ,. , . •. - / .: / '` � LOT r- - �i l I I 1 I I I I I I I .- .. \ . - . •, . , . , : � LOT - GAR=73433 -,., / f� 6 l// _ \ , , 8a ''' ,�4��. �h / LOT / / / 1 1 \ �� - - I I % - J I/ � I _ J � y - �' LIB • O'S1 ., . • ', - •. • `. �" / - - FFE=735.00 12 °" • _+ � • , 4 � / / // YD 1A 53 � �,� \ 2 7t5.67 r w��Q�O 7 FFE - -- --- - `� =.w. . • ,-`. • �- . � / / LOT - / LOT / / / �� \ LOT BBMT- 28 / / / I 18 0 a 3 w C N LOT19xs, \ \ ------� / _• \ 2 / - /\ o - GAR= 2 LOT N - -•-. 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(ft) (°k) IN OUT Type LENGTH ELEVATION \ '�v / / /' LOT o A b W I �• OAN �-� Q 16A 15 28.26 0.81% 727.50 72Z27 RCP DI-3B CG-6 6 735.50 \ O / 66 /� �h �� t ' _\ \ �; �` �• U) H� w 16 DI-3B CG-6 10 735.42 \ \ 0 \ \ V A \ �� h hoy . j �� -. // �� " _ �� LU LL v A 15 15 104.11 1.03% 727.17 726.10 RCP A A Vim" Co �P '� % / �J A EXISTING STREAM v v v v v 14 DI-3B CG-6 6 734.00 A \ \ / LOT 0' / / ./L9 Q \ A 13 15 90.62 L74/o 726.00 724.42 RCP A Vim" / � -,� O' 1' - �� \ \ \ \ O O O O O O 0� "'��/ O O O O / - - - - O Q 0 \ \ \ \ 11 24 93.89 1.68% 719.58 718.00 RCP 12 DI-36 CG-6 8 730.42 _ ` DRAINAGEODEASEMENT PUBLIC\ 65 / 'LL\ .'�8�^ +e` V e `y w p \ 00000000 \00 \ 10 DI-3B CG-6 10 723.58 / \ .\.' �'�` '� -+ Q 1.79% 711.50 709.83 RCP _ _ _ 2 / : 7 \ +\ Q 8 DI-3B CG-6 10 715.58 - / \ \ \ `� \ '�• 5 L ��QO 7 24 49.19 1.02 /0 708.00 707.50 RCP \ X \,V. /QO06 MH - - 713.00 /' \ 4 ,, nn \ \ _ - - -_-_- - - - coO 5 24 47.50 1.58% 701.00 700.25 RCP _ _ \ y JI \ \ `� • \ \ `. \ \ LOT W V \�� \ - - - - - - - \�� \\/\ \\� / \� 4 MH - - 705.50 ��\ \Q \\ / \ \•`,�+` '\ �'\ C`' -y \ Z Z 3 24 121.37 1.15% 698.50 697.10 RCP \ \ \Q� \ \ / \ • ` 'l-`-•� • " \'`,�•�. // \ LOT LU 2 MH - - 702.00 - - - - \ \ • �' y \- I \ 50 W w ^\ 1 24 41.50 1.20% 697.00 696.50 RCPUl \\\\�\ \\ \\ -�., • \+' \ ��\ , \ \ LU PROPOSED UNDERGROUND STORMWATER MANAGEMENT. = • - ` •� `.� �� I I \ \ w V 8B DI-3B CG-6 10 715.33 FACILITY D -SEE VSMP PLAN FOR DETAILS`� \ \ 8A 15 28.04 0.82% 708.33 708.10 RCP (WP0202000053) \ _ • \.LL \ ° \ \ \ \ i' 26 DI-3B CG-6 12 734.25 \ \ \ \O \ '\• ae �•'a / •� I l \ \ ` i j i / / F- L0 25 15 29.74 0.50% 727.17 727.02 RCP \ \0 \ \ / `\+' ` • + ' \ ` ` I / \ - / w Q 24 MH - - 734.25 �\''\�\ /\/ •�.�`.' .\`. �`4\y •/ I I O ' / �'�'/� � w \ \ \ \ \ \ 23 15 27.74 0.87% 726.92 726.68 RCP \ \ ` \ \ \ \ \ 22 DI-3B CG-6 8 731.92 \ \ \ \ \ _ / \ \`, .+ ,4 Q 21 15 147.12 2.77% 726.58 722.50 RCP'.. \ \ \ A060 PROPOSED SWM FACILITY & \ .\ i ` • ` • • • • UI \ \ 20 DI-3B CG-6 8 728.42 \ W MAINTENANCE EASEMENT \ / / t. I \\ r 19 18 22.32 1.03% 721.08 720.85 RCP \ \\ I I \ u0O 7 A(•1' .' , �.,• I I I I I \- ®�--^` r/-- O \ 18 DI-1 729.00 \ \ \ I 1 1 0 \ �• i . \ O 17 18 20.90 0.72% 720.75 720.60 RCP A \ 1 0 1 / • /' •` • � � �- - � - �� i ivi i? 1zB DI-3B CG-6 10 73o.5s I 1 V 00 / •� � . � 1 -I` I vv� / \ \ \ \ \ \ \ 12A 18 27.78 0.90% 720.50 720.25 RCP \ \\ I / / /'� \ // /' -'1 `` �4= "-" +- ••-V`�`, 1` ` .4 S \ `.0 SEE VSMP PLAN (WP0202000053)/ \ SI rl=��- FOR SWM OUTFALL DESIGN \ 1 s 1 p © ♦ \ \ \ \ 20B DI-3B CG-6 8 728.50 \ / / f0 / \ _ _ cov,_ - - 20A 15 27.68 1.16% 721.50 721.18 RCP 0 \ / / QO / ---- _ 1 11 r`� 1 0 LU_ \ O� OOP / I I m r) x / A IHP C SCALES vvvv v o O // c�r) O -vyv ]oB No.In / YD 1 B z" Yam Drain 717.00 O v / \ / 30 o 30 60 _120 _\\ \ 12 65.80 4.06% 714.00 711t33 HDPE YD-1A 1 1 12" Yam Drain - - 714.33 MEN\ 12 1 47.80 1 2.09% 711.33 710.33 HDPE ( W FEET ) \ YD-1 I I I I12" Yam Drain - - 713.33 1 inch = 30 ft. �\ 12 1 41.30 1 2.01% 1 710.33 709.50 HDPE Drainage Easement Chart Pipe No. Size (inches) Max Depth (feet) Easement Width Required (feet) Easement Width Provided (feet) 3 24 5.6 15.2 20 5 24 7.7 19.4 20 7 24 7.9 19.8 20 O'aO IOO,OOIO,�i� I •f/ m / \ 182154 O00p �(Oi'�1 II I I iI� l I` M O 0 �/ PROPOSED "YARD DRAIN SYSTEM / / / / -------- / % 22 SC C _ w/ 2o' PRIVATE EASEMENT (TYP.) TT bLLINS Z - ROJECTBOUNDARY(TYPJ / U ONo.R35791 i�l . • „ w / / / / / LL • . ' ' D o - 7s .00 T w - w w N w - _ I o� 1/29/21 vQj / o� 758 - W � w------------- ! / - ~`�-; " _ . ••` YD b ". . `.76iLL � ._` Y75 B w -W _ � - 11, w � w j �SSIor / YD 4 W r. . " I 1 / / LOT '', I . . . . • / " . ------- LOT . . • • ' • ` - 66:. ' r • `. " • /' �� .PROPOSED 8"HDPE ROOF/FOUNDATION DRAIN W � I 1 ' LOT 1 1 152 SYSTEM w/ io' PRIVATE EASEMENT (TYP.) YD-4E _ 7s7 LOT nc, LOT 5 , / \150- - / / OT 148 149 ._m y' m A y., 4, 58. ' 68B 1 T L� T G). T 3s J'� V1.J e .7, 'e .' -Tm M• M�--r-�-Nt - - h� / LOT 47nc my mom' m� �, \ \ : -T 11 �. 11 ,1 �I J ��l 'I .' .. '.'`.'`. ". 'LL.'. ° rY- T_ - M-m M M PROPOSED WALL LOT 1 6 \ m + v r °o M7 _{ �! - /- I / -�BLICJS p / �; 4 11 `;1 : 'm °_ Q- - J_ - -,,--- . ' . • . . , ., . ' - m o . 25+00' - z z+5o B. Sz rREET MAINTENANCE EASEMENT ro .o o / / M + 2 +5 z + p { LOT 145 T \ J o - o o _ ' . .. • .. 5 4 5 z +o0 23+00 34; PG zo> / LOT i o;---J - :_- ---_ II :• ii 26+44 / LOT 1 m y n \ a Illi 6 Tw 43 m �' , ` .01 \ i o - \ fib t / - 7 4 I LOT 142 G o __ --- - -- / o _ � 5 - 6 . 76o BW 1 1 � m�A � � °�' o,, o �- a, � i _--► �.52 , •- ;T -� - - � _-- _ �• _ EX-3z. I LOT 4 np g �.o �" 756 - - _ - --___-_- - 66 - -- - PROPOSED WALL - (MAX. HT. = 4') c G* c "o;> U, .- = - PROP - � ' / DRAINAGE DESCRIPTIONS �i o - _ V l I. ` 8B . :� mLET _ y�+O. - + / /� PROPOSED 20' PUBLIC \ J PIPE INFORMATION INLET INFORMATION � r- z 4 Ira I ° to / DRAINAGE EASEMENT STIR. NO. DIA. LENGTH` SLOPE INVERT INVERT Curb SLOT RIM a M _ PROPOSED 8" HDPE ROOF/FOUNDATIO DRAIN I i o +, -+ ° \� / - m 6.PUBLICSTRE ! ° MATERIAL INLET TYPE f g ° - m + O _ - (in.) (ft.) (h) IN OUT Type LENGTH ELEVATION U CO o_ SYSTEM w/io'PRIVATEEASEMENT(TYP) m'o - o `, %' r o M �- _ �7 5 0 '� / 3s6 DI-3B CG-s m 7as.oa O w o �I / +00 PROPOSED 8" HDPE ROOF/FOUNDATION DRAIN 36A 15 33.24 1.20% 738.00 737.60 RCP o m 762 6o B /M. o _ { ^n G SYSTEM w/ zo' PRIVATE EASEMENT (TYP.) 3s DI cG� s 74a.75 F w 26 -�� / /'/� 2$+5° .i _ - 1� - 1 - y T n fn A ' 35 15 162.53 4.25% 737.50 730.60 RCP U) DI-36 CG-66 737.42 > EXISTING 12" CMP 46B 15$/ N 1 n y J / i 34A C' • - _,� +O° ° - - o ' F _ -n C [n Z7 15 33 57 1 19% 730 50 730 10 RCP U CULVERT TO REMAIN /� / ° m / / �\ 1 T C fn w u O i�i + 34 DI-3B CG-6 10 737.33 1 0 1 T =T1 G� T�11. j0 J o LOT 1 - p / 33 18 36.83 0.62% 730.00 729.77 RCP 47 49 48- n y n n U I -�-�- - -- - - PROPOSED DRAINAGE SYSTEM 1_ T 0' " m �, LOT 153 a�16° 3zs DI-3B ccs 10 738.25 - - - - T C. rn 56 J J `^a LOT27.72 0.54% 729.67 729.52 RCP i� +5 LOT „ c - „ , N 54 f I c 0 756 46A 29 44 n rn J j� J O iT1 32 DI-3B CG-6 10 738.25 - - - /- I �� _ CLING LANE - Y ``°' LO 156 T 155 °, °�rX o' PUBLIC RIw I °n r l •"`I { m w �v _ - 3 >° C O+pO.� -�_/� ° � LOT 1 '• �.r 30 24 17439 052% 72942 72852 RCP DI-3B CG-6 8 744.75 \ 5 3 N G R-756 0 i63 ° J 57 -� a -. � ^'I ,-� � � \ 29 24 47.57 0.88% 728.42 728.00 RCP 2+00 LOT ' LOT �58 1 _ _ m m / , za MH 746.58 3 G R LOT 1 1 �• 1 LOT LOT ' 160 159 1 / - - - \ - - � - - - 27 24 11.31 1.50% 727.00 726.83 RCP Q 755. 3 N 162 161 F YD-zE / 756 38 DI-1 - - 735.33 N 37 15 29.70 1.08% 730.92 730.60 RCP ;V PHASE II 1 -�� //�.- �,�.,�."• .. { •r (FUTURE) EXISTING 12" ClP I 1 F =75733 _FFE=� 165 - - t �. . , . S" e ( / 46 CULVERT TO REMAIN / 39 0 ! - ` / 45 15 58.26 2.87% 752.42 750.75 RCP MH 75zs2 "° 1 ^ .. -r/ \ .`366•' __� ---- _-_ 44 MH - - 756.00 0 �5. �lR=754 o LOT 1 YDZH 4 O / 4600� . LU ., 1 _ 75• ' . ' -D-2D i / Z ' \ / 42 18 111.16 3.66% 747.17 743.10 RCP DI-3B CG-6 10 750.92 \ F�=755�1 166 \ I J 1 1 .' .' ` " � LL "-LL` • ` _ - - " ''• .F / � _ �'\ PROPOSED 8" HDPE ROOF/FOUNDATION DRAIN 138° PROPOSED 8" HDPE ROOF/FOUNDATION DRAIN'. • `r y% / LOT } 36 41 18 100.34 3.14% 743.00 739.85 RCP -� / 61 _ _--- SYSTEM w/ io' PRIVATE EASEMENT (TYP.) I . , SYSTEM w/ 10' PRIVATE EASEMENT (TYPJ •�. / 6A aoB DI-3B ccr> a 7az5o LOT GAR- o/ " -L�T- • `S- ` ` ` - : 1�4 R 7 6'}7 / - 40A 24 27.69 1.16% 739.75 7-- - RCP / G 4 _- 137 FFE-755 37 40 1 1 DI-36 CG-6 8 747.50 39 24 54.76 1.52% 739.33 738.50 RCP w o YD 3D 183 G R 744• /! / _L9 z � / oo LOT GAR 40/0 3 e� Lr PROPOSED 12' YARD DRAIN S. - / _ - -_ J I w I 1 6 FFE=754300 ° FE " 'w/ io' PRIVATE EASEMENT (TYP.) EM . I / E=745 Sq g o% / _ - - aeA 15 34.70 oss°� 7aa.17 7azs3 Rcp DI 3c CG-6 10 755.25 / 3 4z YD-zG t2. o I LOT _ - U - W / I I / _ �, - ", . - ` • ` I ' / / / 48 DI-3C CG-6 10 755.25 r _ II `74 $3 `, • `. ' • • ',•" "_�� I 182 GAR=7433 .P ! / 47 18 99.52 0.56% 747.83 747.27 RCP / PROJECT BOUNDARY (TYP. I -� QAR-751. 7 LOT o �•� , FFE= 1 h / / \ \jilta w - 9 - ±LL V w / 75- - -- /o fE-751.8 16 : ±': + 6i Io 3 / / / \ ash DI-1 7sz7s (vj y - o n I 744 7 1 lA / / / / / II r LOT II .1. 1' - • • '•-� "`.,C• I I 181 G R= I p' y / / / 1 - 46A 15 33.59 1.49% 753.50 753.00 RCP ® 0) 1 GAR 1.6 fl L" _ PROPOSED 12" YARD DRAIN SYSTEM I 1 " -75 7 0 YD-2F • F 74z �7 i N w/ io'PRIVATE EASEMENT(TYr.) I I 6/0 3 V 1 L _� 748 I "I. " I- YD-3C �35 FFE=75z33 p% = E 74z.83 � � CULVERT 1 ES 1 758 33 � 7 h - - • `• �' • `'! ', • `, `d/ � / � LOT / � / _3 / � 15 16.38 12.21% 756.00 754.00 RCP � (� -1 / / / ❑ YD-3E LOT -75 .00 .' . • `, •'. .' . ", . ", •' - _ 744 _ 180 GAR=7413° I / / / / \ 526 DI-36 CGE 10 755.n / / / / / 7 .00 134 FFER 1y6f 7 t +� dv �46 1 - -' / - $ I FE=74z.1} 7°01... / 52A 15 27.63 0.83% 748.25 748.02 RCP N J / o - = 9 F 3 ' _ - _ - - - - 52 DI-3B ccs 10 755.17 ' I C -� L� L PROPOSED 8" HDPE ROOF/FOUNDATION DRAIN i� -/ _� - I - Q J _ - - - - -T • �. LOT --- ' -- --- / / \ \ 51 15 163.33 2.71°h 747.92 743.50 RCP %ol� LOT G;AR- 0. 'L7 I I - I GAR 740 83 �/ SYSTEM w/ io' PRIVATE EASEMENT (TYP.) I I 1 F E-75� 03'' 70 PROPOSED 12" YARD DRAIN SYSTEM- 1 so DI-3B CG-6 10 749.00 N i 79 FFE 49 15 64.16 1.82% 741.42 740.25 RCP r 33 VATEEASEMENT(TYPJ� / A 1 I I LOT �� - / LOT LOT -� w/io' PRI I � I o° / / \ w 6 / 5 170 LOT LOT LOT I " LOT �� / 50B DI-36 CGa a 7as.00 75 749 7 7a 171 1]2 - i I / R o A T LOT LOT I LOT GAR= 6 4 m o 173 ��74 �75 LOT I 1]g �Q 37 7 1 /I /� \ 50A 15 zzss o.a3% 7a1.7s 741.5z RCP _ I LOT 13z FFE 75033 �- I r OPO DR /LLI --- --- I I LQT- 12g 130 YD-36 33 - SED 128 -n 'n G1 � - � � � � �; a o° �. ° � 1°76 I ` '�j� -I / �� /� R AINAGESYSTEM V A � J Q LY7T 12] ➢'l D I R=749.00 Sa/� + _ I � YD 2E 12" Yard Drain 746.00 LOT LOTS n n' uE_\ ---�� Q Q II �I u w I I I G�R=7395° 12 20.3o as3% 7a2.00 7a1.00 HDPE J Q J 2� I 749 7 o YD-2D 12" Cleanout 745.25 -r, _ m n u, w - 3 0 o °-'=2-w. Q � � � n I� w 177 oh �° / 3 � � A � 4 „ _ _ _ LO 1z 1 ,-n c� m u � � � ,, � � ko I i0i F .. I � v - - - --o , - � � � � -- a � � I .' I F��4_ 7 �i l I Gv m� V v 1z sass s.7z% 7a1.00 73e.00 HDPE > Z 3 n �_ ---- n-__ 'Y I I1�/' 3 I 4 i • 7 �� __' �� ` �1?_�-. I . .I• • . �i� - I ,1, Q / / 3$ \ \ \ YD-2C 12" Yard Drain - - 742.00 12 -n L,_-, � � 11 � � w � � YD- OA _ 1 YD_3A - __- - -- --_`_ - ��- :__ -_- �io �o i- �. �- - . • .50' / I I - V A 12 69.50 3.65% 738.00 735.50 HDPE - a Q ^ °� ° ° w , -- -- w YD-2B 15" Yard Drain - - 739.00 �i m in I w �� __ '.-_. . _ - �,r, _ - - - -- ' • -� ' •>. - - - - - __ - -.--_ ----- . y " _ �, >: o i 12 55.90 0.89% 735.50 735.00 HDPE -. - y J _ YD-2A 12" Yard Drain - - 738.50 O L w 440o - .. \ -_j 3 ,--- . \ -- - _ `.-.T- 73533 '� � i � -h / - '� - " � '" "SLL 3 \ 12 60.30 1.66% 735.00 734.00 HDPE N YD iA .• S ' \ LL e I - PROPOSED 8 HDPE ROOF/FOUNDATION DRAIN \ YD-2 12" Yard Drain 738.00 _1.�, PROPOSED 8" HDPE ROOF/FOUNDATION DRAIN / - `• " `• ' - / 304 \ \ w N - - - M. SYSTEM w/ 10' PRIVATE EASEMENT (TYP.) ..; •. +. 34 i/ -73 16B \ 12 31.50 1.59% 734.00 733.50 HDPE Q �o SYSTEM -M 5 I o M / 6 \ \ (%� N T ° ` . - \ 3zB l PROPOSED>2" HDPE ROOF/YARD DRAIN \ YD-2H 12" YaM D ain 753.83 U SYSTEM w/ io' PRIVATE EASEMENT (TYP.) - - - 12 70.40 6.39% 749.83 745.33 HDPE w 06 _\ __. M M �2... -.' / \.' YD-2G 12" Yard Drain - - 749.83 5 -- -.. -2$+5 \ __� ___- .: .; .. ,•. '.. >,:. ;-.,�. .. � .. ..•.: '-..' I--.' � M, � �3+Sp.' m m � M 3.�� 12 36.00 13.89°k 745.33 740.33 HDPE / `..�/ / 2 + �-O r� - 1 - M� YD-2F 12" Yard Drain - - 744.33 5° - - . ' . '. `. ` `. . `" . ` . ` �- - 4 SOi / - _' ,-12 +00 36 \ nl 2 +00\ : M 12 84.85 5.69% 740.33 735.50 HDPE - 4 A UBLOI REE 3 zz+So - �� W -r z / \ 11 I oo• REVERSE SLOPE / PROPOSED DRAINAGE SYSTEM M X V / \ - _ YD4C 12" Yard Drain 756.00 U) w . ;, � -- �-, \1 ', r f I ^. DRAINAGE BENCH. • '� `LL • " I ..: I m - - - 3 -` -2z+oo 12 s5.2o 0.77% 752.00 75t5o HDPE � .. YD-013 12" Yard Drain 756.00 • _.MAINTENANCE EASEMENT � _ ° .. �... �5 _. , , o I _. � - �'' 1iAR`- 1 • •' • ` •" • I I' - -- ) r. - S • 16•' 12 28.50 0.60/ 751.50 751.33 HDPE LLI `J a n --- GAR=751.0o I" 1 ", '� .` " . •" . • AGAR= I fi - - , f 1 _E=74 I o I„ .� i ---- GAR=75 FE=751.67 fFE= I z M- 1 m _r .... -% , _:: 1 - __. ___ .�'�, I :'1. �I .00 �-. " �• . " „ • �. 745. - - -- - _ - I _. "'--.. � �� ., I ; � V- -_ 12 68.60 0.96°h 751.33 750.67 HDPE L_ - YD-4A 12" Cleanout 756 67 � GAR= 1 FFE=753 WO I-SMT-741.83 740 B p 7 z GAit T43. I LL ---- 754 7 I 1 / I� `f FFE o' R= i. o I I I ^-. " ` z I I I 2 T =-, - . . . . 744 I 74 �_ - - - - / . :I I rry. �` ..' VD-0 12" Cleanout 756.n - -- FfE=7 4.8 75 743 z5 f e �38" LOT 740 ' • 12 18.65 0.91% 750.67 750.50 HDPE �'', ., I f GAR=755.67 { I 5 _. 3 I I I � TOT I 35,75 r 6 . .. I B� = 4.1711 I 4z. }- : -I I - I I _ - - - -� - - - \" ". • `. "�: '; , � • '.e ` " // / �n � Q GAR= FFE= 6. _J / 1=5{vTT=745.00 LOT I 73 _,82 GAR 740.00 738� I r -- ,, 757 33 75 33_- / I I . ... .- 7 S.00 , I BSM -7 33J - - GAR=738.57 I I I GAR I GAR=737 33 I GAR=7 67 I ; . . ' I LOT T LOT FFE=740.67 737 7 \ iT" `. /• YD4E 12" Yard Drain 757.00 ~ v , =758.67 ,' I II FFE=758.0o BSMT=746.50. 1 84 I - -' i I 7 6=739.33 1 FFE-738: o FFE- I. 1 .' . _ LOT 8 II, ✓ y 6' y YD- A I BSMT=73o.83; I I 736 = 8 736 737 33 i, 1. , . . - _ 12 s8.ao 1.71°i 7s3.00 7s2.00 HDPE J Q =75933 7 6 T=748.17 6 5 - S , I 81 7 4 LOT L BSMT=}z9.5o � _ =728.171 �Sl�l 7.50 I . " " $ 1 LOT 86 7� I r PROPOSED WALL_- 1. I / I` = I I BSMry 72 .501 YD4D 12" Yard D ain 756.00 4T=749-50 '' i 8o LOT 7 z I I / \ I ,', . /, " `. (. 0 w -MAX. HT. - 6 • ` - • ` �� ,` - ` ' `. ` ' Aft 12 29.95 2.24% 752.00 751.33 HDPE J (MAX.( ) / l - o PROPOSED i2 YARD DRAIN SYSTEM I I I I j LOT J, y J LOT 87 I I I - " = J 73, L 79 LOT Lai j LOT �- 1 73 5 - / I I I J I I 6, 88 / 8 ' wl� 'PRIVATE EASEMENT(TYP.) J I I 8 17 o I 77 / I � - ` ' ` J` ' _ _ � ___ " � � , LL YD- __ � I I- i I � I �� 7 I � 76 \ >-]rJ . . . BS'w1T }2 YD-3D 12" Yard Drain 752.00 Q LOT 7 11 I PROPOSED WALL I It - 3 t_ o - � J . ' 7y6• . r � .., I I I � 7z8 \ " . • `� •:. • / r n 1 T G-102 / / / f 12 48.80 4.10% 748.00 746.00 HDPE MAINTENANCE EASEMENT 2- - / ' - I L - 0� - MAINT 6 - �� _- `-� / / 7g6 / TW " LL \ 734 I I - _J J. \ ` YD-3C 12" Yard Drain - - 750.00 89 I / 733 - / ! \ \ ' O ----- �� I I / � PHASE I I � / 12 50.00 2.34°h 746.00 744.83 HDPE / z TW-7z7BW 7 0\ \ I \.' `.' O J L - YD 3B 2" Yard Drain 748.33 01 71BBw �\ / - - -` �'„ '\,. / / / 12 24.00 2.42% 744.83 744.25 HDPE / 734 7z6 LL ` \ \ o I I� I / 1 :J - - - - -\ - YD-3A 12" Cleanout - - 749.00 _- �_ �742i741 / j " ".�!`• ..' `.�1 `�• `.� `.' `. `" \\ \ �•" • `� --' ; � - - - _ /,\� / / - \ ` � / �\.. - 12 49.55 1.51% 744.25 743.50 HDPE YD-3 12" Cleanout - - 748.75 .�T / \ \' - - 20 ��-",_ - �`,� 12 19.90 2.51% 743.50 743.00 HDPE PROPOSED WALL m \ oo \ \ - - - - - - - `� / 7 _ (MAX. HT. = 7') / \ \ \ \ / . T / _ -� (� S b / k - PROPOSED WALL / i \ \ _' _ �� - YDJG 2" Yard Drain 757.00 u w - �IPROPOSED1� \ PROPOSED WALL Too' WPO BUFFER (TYP.) - - - ± \ p w 1. " ", • ` UNDERGROUND STORMWATER MANAGEMENT \ - - - - _ - / y2� / / / - - \`� `.`".. 12 e215 a.e7% 753.00 7as.00 HDPE _ (MAX. HT. = 6') _ _ FACILITY'C' - SEE VSMP PLAN FOR DETAILS \ (MAX. HT. = 4') _ r // \\ - -�-' - -J--------- / _ GRAPHIC SCALE -\ \- �. V • .'��. . ..: (WP0202000053) \ / \ YD-3F 12" Yard Drain 753.00 Qi .� - �- 4 �`�. '� 12 67.35 1.48°h 749.00 748.00 HDPE JOB NO. \\ Z •� YD-3E 15"Yard Drain - - 752.00 182154 _ _ i 30 / 0 / V5 30/ 60 / ` - 120_"` `" +•'• + e •-r` /DO QO ^�� \ �z0 ��PROPOSEDSWMFACILITY&� / _ -- - -w\ - 12 52.75 3.7s% 7aa.00 7as.00 HDPE _O O �O O SEE VSMP PLAN (WP0262000053) \ \ / / - LU " - - SCALE ----I?� MAINTENANCE EASEMENT /-_ _ „ , / / / - O �O QO QO QO QO 0 QO i O O� FOR SWM OUTFALL DESIGN DO \ - - - \ / - - - - - O _ - _ _ - Ur - - - - y`. LL , YD-SA 12" Yard Drain 735.00 1 = 30 �n��n1® IN FEET ) - -� \-- _,�_ _ - _ �•-�� 12 16.00 15.63/ 730.00 727.50 HDPE SHEET NO. 1`d' / / - - _ O/ / ' - - - - - - O O\ �O �O 1\- - , \ / / / / ' - - - YDS °O 12" Cleanout - - 731.00 ` -� ----- -- 1 inch = 30,- 9 ioo-YEAR FLOODPLAl. (TYP.) Q �� - - i \ - - - - - - / - - , - 12 16.80 14.88% 724.00 72150 HDPE O / / / /Q / / SCOTT R. LINS'Z / / \ O O\ / / / / \ O, / 910� / / O / / / _ No. 35791 / p �S1/29/21 SIONAL li LU W 1U) PROPOSED 12" YARD DRAIN SYSTEM w/ zo' PRIVATE EASEMENT (TYP.) YD3G z EXISTING SANITARY SEWER MANHOLE MH-EX-12PROPOSED - - - - 759J5 7 5 YSTEM wD/P o'RPRIOVFATOE EASEMEONTD(TYP J / 7. / H o / / \ - 1 RIM TO BE RAISED FROM TO 6o.z 757.00 'A Ln EX. INV. IN=747.73,EX. INV. OUT=747.65 V/ z o � LU / ' 1 PROPOSED 8" HDPE ROOF/FOUNDATION DRAIN S % / w Ce SYSTEM w/ io' PRIVATE EASEMENT (TYP.) YD-6C ' � S /' -- k ■ W�/ - -PROJECT BOUNDARY (TYP.) 758.00/ - - - - _ LOT L PROPOSED 8" HDPE ROOF/FOUNDATION DRAIN y"%-� - m LOT LOT 122 ' 1 '- T SYSTEM w/ 20 PRIVATE EASEMENT (TYP.) 1 LOT 12p 121 T ➢ / 60 \ , 7D 11 „ c / / \ EXISTING SANITARY SEWER MANHOLE (MH-EX-u) 7 - LOT Yin 9 m i YD-6B 757� - -n c� m �n / RIM TO BE LOWERED FROM 762.92 TO 8.00 - \ ' \ EX I-75 Yp_ - LOT 118 , EX. INV. IN=745 99, EX. INV. OUT= 8z - 62 \ , � 745� 7 ---- - - LOT T � I / 756.67 _ s�117 T y. io �-� u✓ 6A _- '�- � LOT 116 r"A PROPOSED 12" YARD DRAIN SYSTEM- _ - - - _ LOT w/ io' PRIVATE EASEMENT (TYP.) ` ',, LOT c 114 - / PROPOSED 20' PUBLIC 76o y"k i LOT 112 c m A A / DRAINAGE EASEMENT -- 111 �n v m Y Jv J 'm 'o u' - CD.. LOg n G0 \ A �° o o e - M. M a " \\ a o.-+oo� N Vm"co 78 m / / / / / �•` ` •` LOT o5 mA�-- o � G T �jm co o / / 104 _, m � -LA`J o w ' o k +00 �58 \ - / S L9 � / / / / / . • ..y ..LL , �/... " r- - � O � 1n. -o �\ U o� J o iw�1. ig 315 o - /�. - M 6oB - 64A _ 2+00 _ l - 75 CC) y ' o i o o -3 - FFE A = �' / 754.67 TB. \ \ R=75933 I BWT=749 0) 00 \ O� i F E=76o.00 \ / / FFE-758.67 _ M 3 GAR= 00) LOT 75 BSMT=75o.17 Ch _ 7 7 LOT z 7g6 \ - 7 FFE= 33+p0 4 \ - - \ ( GAR=75 67) \ 74483, \ LOT i rn 9 / / \ / / ✓ , % \ / O� M / s t - FFE 3 \ go 1 8 N J �/ PROPOSED DRAINAGE SYSTEM M55�'7.TE \ \ 1 \ LOT / / / /. / • / _ / / / \ D r. s- + o, G R 75 ,17)-T�749•So) O � O u / / � .- .` . ,. . "• . "-"`.��". ".•• � � \ ''' \��-m •. -� \ �M" _- \ FFE- _� � -- 7 � � -_ _, N T= .00\\ \ LOT \ ) � - Q \ / \ Goh / - - - 7 749 I N / ♦ o l / ° - 4'. '. . _ -,G R= +oo S \ - GAR-7 .fi7 - - 8,0% 1- _ /\ FFE 33 COT Q I I LOT 34+50 - \' G y48,5° \ /, / / i qR ` . - `. . .. " . LL . " . ..• " . ". - . `, � . ` ,� /. /- ` . • . •" . • PROPOSED SWM FAC L TY & \\, \ / .:. 9 _ - \ ( FFE 757783 '', ( 93 \\ \ \ � \ \ \ - r / 101 _ - - '1 � \- - LOT:. - • " " l . " . " . LL . - - '.� .. `. •LL . "' .� : ' "'� • •.. • -" .. • . MAINTENANCE EASEMENT � `, �` \ ( 44 _ \ ( j PROPOSED24 PUBLIC _ - - = 7rj \ _ - _ 74 / / W � PROPOSE GAR ( __ \- \ - \ � - \\ - 1 / \ J Q DRAINAGE EASEMENT 5 -\ E-7 3 LOT ( - - / N GAR= 74 95 ` ��\ � \ . - • '. '. - ' ', . • � . "'- '.. `" . � ` PROPOSED STOR(v1WA7 R .." - • ••-.. GAR-75733 / . • � .�. y .� �1 1 `, - - -i 1 1 FFE_ 75 •303 \ \ \LOT 8 \ J\ \ \ ( O \ - � - -74-J ` e % '. � z , 1 � J / . `• . `, . •• . •• . " .MANAGEMENT FACILITY'B' - � ` . /. • , . . - ..' :/ FFE=758.00 �t _ I GAR-75 -$3 754 iv1T-747�17 { _ VSMP PLAN FOR DETAILS,',.F- _ / \ • . • " • . • . . • . (WP0202000053) , •i - . • . . " ..... / � 10o G 1 T=746.671`1 \ / � - - � .e/."" . /. • - - � . FF LOT- r LOT I1 \ 7 w -- �36 = 1. / W Q ✓ Q _ f 99 PROPOSED WALL / •i-' / OO U Q Vim`•:• / o _ % 74 .50" • MAINTENANCE EASEMENT06 Oo � 1•y',� �5Y -�•�` iLU ce- w � - . i ' � - _ / �``" • 'r ` ','� . • . �•,'"" : -/ / � Y \ - - % - - "'far-% " i% ` ` /` -%'1 1 - - - - -1 ' i 388 \, ` .'"/ - - - � �,-' "'�` ; / •� . / ®� ♦2 744 PROPOSED WALL _ 742, IX z z ------ \ _ - MAX. HT.-6' %• O LU Ilk O \ \ - - ' \ . ` S ` / / \ y" 1'. PROPOSED SWM FACILITY & \ , �j Q - - - - - j. . LL . / / ioo' WPO BUFFER / \� _ \ �\ \ \ \\ / _ -' - / / / PROPOSED SWM FACILITY & MAINTENANCE EASEMENT / / / - - - /o O O \-• (\ "O P--_LU - \\ \ \\ /----�J ".'•• """ .` / /� / // \ I G i OOOOO\`-/ L1J V MAINTENANCE EASEMENT H \y \\ \ \ /" / ioo-YEAR FLOODPLAI O DO // / U Q SEE VSMP PLAN (WP0202000053) / / / / O / \ FOR SWM O_UT,FALL DESIGN PROPOSED VDOT STD. ES-i & CLASS Ai IPRAP LINED / / / - - ' - _ _ - / / / / / I / \ J LU Q \I \ \ \\\ \\ \ OUTLET OUTLET PROTECTION w/FILTER FABRIC -' / f j ' / /O O O O a0 ® ® 0 00 a D DODO O O O O % X \ // / // / O OQ� p p o (\� J \ UNDERLAYMENT(L=zo' W>=6' W2=12' D=z. ') / O OO \ \1 \ \ / // / '/ V�O - Z------' - -_ �jpOoOoo �� Oo0®�C�500oO \ / / OoQO �C J \ ---748- _ t_\QO� �0 _ oO Q PROJECT BOUNDARY (TYP.)- \ Z �O O�EXISTING STREA - - 744 �® - / DRAINAGE DESCRIPTIONS PIPE INFORMATION INLET INFORMATION STIR. NO. DIA. (in.) LENGTH* (ft.) SLOPE (%) INVERT IN INVERT OUT MATERIAL INLETTYPE Curb Type SLOT LENGTH RIM ELEVATION 64B DI613 CG-6 8 756.75 64A 15 27.68 1.16% 749.75 749.43 RCP 64 DI-313 CG-6 8 756.75 63 15 134.83 1.04% 749.33 747.93 RCP 62 13I613 CG-6 8 755.33 61 15 32.18 1.03% 747.83 747.50 RCP 60 DI-3C CG-6 6 755.08 59 24 48.14 0.66% 747.17 746.85 RCP 58 DI-313 CG-6 6 755.58 57 24 44.05 0.73% 746.75 746.43 RCP 56 MH - - 752.67 55 24 138.65 1.25% 746.33 744.60 RCP 54 DI-1 - - 749.50 53 24 61.03 1.23% 744.50 743.50 RCP 60D DI-7 - - 754.50 60C 24 48.25 1.04% 749.00 748.50 RCP 60B DI-3C CG-6 12 754.67 60A 24 56.66 0.71% 748.50 747.27 RCP YD-6D 24" Yard Drain - - 758.67 12 102.40 c 755.17 754.00 HDPE YD-6C 12" Yard Drain - - 758.00 12 89.35 c 754.00 753.00 HDPE YD613 15" Yard Drain - - 757.00 12 56.00 c 753.00 752.33 HDPE YD-6A 12" Yard Drain - - 756.67 12 75.90 c 752.33 751.50 HDPE YD6 12" Cleanout - - 756.00 12 19.35 c 751.50 750.00 HDPE 68B DI-313 CG-6 8 754.75 68A 15 34.86 0.72% 747.75 747.50 RCP 68 DI6B CG6 6 754.75 67 15 206.62 0.97% 746.00 744.00 RCP 66 DI-313 CG-6 6 749.75 65 15 176.53 1.12% 742.50 740.52 RCP 66B DI613 am 10 749.83 66A 15 34.85 0.66% 742.83 742.60 RCP I / / / ® O O N \ \ \ �, OO p O ---- \ oy/ QO o Q -c -__ GRAPHIC SCALE \\ Ce> SCR / \ O O0� 0 O O 30 0 15 L-30 60 \\ -70- ------ -- / �� \ --- ` / / / -/ 1 // / d In 30 o \ 0 - - ----- ---- / - ---' o0 s \ \ _ / OoO 1 \ ��OOoQOQO�Q6�� \ \\ / 182154 ®Ce1QoQOOo� ----- -_ O \ O O QO Iy� OO O ( IN FEET ) / // O O DO OO O�-O-��O \ \ /' - �- SCALE OO(O 1 inch = 30/Kt. // _�OQ-__ - ---_ __ -®� ' ! �� - - - - / OO DOD OOOO OOP I OO // QO�O�----------- - \ - - SHE �\ �OOOO O -\ OOO-- -,- - _ _ �Q'®®��?Ce?��C�Ce} L-� �0�� - �QOO�� 900�000000 - - ET NO �- , O \ Q0 0 - \ - - - - \ \\ - -- _ 10 Drainage Easement Chart Pipe No. Size (inches) Max Depth (feet)l Easement Width Required (feet) Easement Width Provided (feet) 53 24 7.1 1 18.2 24 55 24 8.6 1 21.2 24 57 24 9.6 1 23.2 24 C 0 U C 0 U 0 0 C