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HomeMy WebLinkAboutWPO202000030 Plan - VSMP 2020-06-01GENERAL NOTES OWNER: CURRELL CORPORATION 35 OLD FARM ROAD CHARLOTTESVILLE, VA 22902 2415 DEVELOPER: HUNTER E CRAIG COMPANY 1900 ARLINGTON BOULEVARD CHARLOTTESVILLE, VA 22903 (434) 974-4500 ENGINEER: COLLINS ENGINEERING 200 GARRETT ST, SUITE K CHARLOTTESVILLE, VA 22902 (434) 293-3719 TAX MAP NO.: 06000-00-00-025AO COB17/568 TOTAL PROJECT AREA: 3.89 ACRES TOTAL NOTE: A BLA IS BEING PROPOSED WITH THIS SITE PLAN TO RELOCATE THE PROPERTY LINE THAT CURRENTLY PASSES THROUGH ONE OF THE EXISTING BUILDINGS. THE NEW PROPERTY LINE WILL BE LOCATED JUST TO THE WEST OF THE BELL -AIR MARKET BUILDING, AS SHOWN ON THIS PLAN. THE PROPOSED BLA WILL ADD AN ADDITIONAL 0.91 ACRES FROM TMP 60-25B TO THE PROPERTY (TMP 60-25A), WHEN COMPLETE. NO IMPROVEMENTS ARE PROPOSED WITHIN THIS 0.91 ACRES. THE PROPERTY LINE ADJUSTMENT (AS REQUESTED BY STAFF) IS THE ONLY MODIFICATION ASSOCIATED WITH THIS AREA. NEW TOTAL PROJECT AREA (AFTER BLA): 4.80 ACRES ZONING: C-1 COMMERCIAL ZONING. THE PROPERTY IS ALSO SUBJECT TO THE AIRPORT IMPACT AREA (AIA), ENTRANCE CORRIDOR (ARB), AND STEEP SLOPES OVERLAY DISTRICTS AS DESCRIBED IN SECTION 30 OF THE ZONING ORDINANCE. THIS PARCEL IS ALSO SUBJECT TO THE ACTION OF A SPECIAL USE PERMIT GRANTED IN 2004 WITH SP2004-00021 FOR A BALLET SCHOOL. TOPO & SURVEY: SURVEY PROVIDED BY ROGER W. RAY & ASSOCIATES IN AUGUST 2019. TOPOGRAPHY IS FIELD SURVEY PERFORMED BY ROGER W. RAY & ASSOCIATES. TOPO FIELD VERIFIED BY COLLINS ENGINEERING IN SEPTEMBER, 2019. DATUM: NAD83, NAVD 88 EXISTING CONDITIONS: RELATIVELY FLAT DEVELOPED SITE WITH (2) EXISTING COMMERCIAL BUILDING, PARKING, AND OUTSIDE GRAVEL STORAGE AREA. THE COMMERCIAL BUILDING PROPOSED TO BE RENOVATED FOR A CHANGE IN USE IS 28,960 SF AND THE EXISTING COMMERCIAL BUILDING THAT SHALL REMAIN (WITH NO IMPROVEMENTS OF CHANGES TO THE CURRENT USE) IS 17,425 SF. PROPOSED: THE EXISTING COMMERCIAL RETAIL BUILDING WILL BE RENOVATED FOR THE FOLLOWING USES: 2,500 SF RESTAURANT 5,000 SF COMMERCIAL RETAIL 18,180 SF COMMERCIAL OFFICE/COMMERCIAL RETAIL 3,280 SF MANUFACTURING/PROCESSING/ASSEMBLY/FABRICATION TOTAL SQUARE FOOTAGE: 28,960 SF EXISTING BUILDING TO REMAIN WITH CURRENT USES: 2,465 SF MEDICAL OFFICE 6,800 SF BALLET SCHOOL 8,160 SF COMMERCIAL OFFICE TOTAL SQUARE FOOTAGE: 17,425 SF WATER SUPPLY PROTECTION AREA: N/A WATERSHED / WATER RESOURCE AREA: RIVANNA RIVER DRAINAGE BASIN ALLOWABLE DENSITY: N/A PROPOSED DENSITY: N/A GREENWAY DEDICATION: N/A - EXISTING PAVED PATHWAY ON THE PROPERTY TO REMAIN BUILDING HEIGHTS: EXISTING (1) STORY BUILDING TO REMAIN. MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 65 FEET. NOTE: HEIGHT OF BUILDING OVER 40 FEET OR 3 STORIES SHALL PROVIDE A STEPBACK PER SECTION 4.20. EXISTING BUILDING HEIGHT = 18' SETBACKS: FRONT SETBACK: 10' BLDG. MINIMUM FROM R/W OR EXTERIOR EDGE OF SIDEWALK IF SIDEWALK IS OUTSIDE R/W. 30' BLDG. MAXIMUM FROM R/W OR EXTERIOR EDGE OF SIDEWALK IF SIDEWALK IS OUTSIDE R/W. 10' MINIMUM FOR OFF-STREET PARKING OR LOADING SPACES FROM ANY PUBLIC STREET R/W. SIDE & REAR SETBACK: MINIMUM: IF THE ABUTTING LOT IS ZONED RESIDENTIAL, RURAL AREAS, OR THE MONTICELLO HISTORIC DISTRICT: (I) NO PORTION OF ANY STRUCTURE, EXCLUDING SIGNS, SHALL BE LOCATED CLOSER THAN 50 FEET FROM THE DISTRICT BOUNDARY; AND (II) NO OFF-STREET PARKING OR LOADING SPACE SHALL BE LOCATED CLOSER THAN 20 FEET TO THE DISTRICT BOUNDARY. IF THE ABUTTING LOT IS ZONED COMMERCIAL OR INDUSTRIAL, ANY PRIMARY STRUCTURE SHALL BE CONSTRUCTED AND SEPARATED IN ACCORDANCE WITH THE CURRENT EDITION OF THE BUILDING CODE. MAXIMUM: NONE STEPBACKS: FRONT - FOR EACH STORY THAT BEGINS ABOVE 40 FEET IN HEIGHT OR FOR EACH STORY ABOVE THE THIRD STORY, WHICHEVER IS LESS, THE MINIMUM STEPBACK SHALL BE 15 FEET. SIDE & REAR: NONE PRIVATE TRAVELWAYS: CURB & GUTTER TRAVEL WAYS UTILITIES (WATER AND SEWER): COUNTY PUBLIC WATER AND SANITARY SEWER AGRICULTURAL/ FORESTAL DISTRICT: NONE EXISTING VEGETATION: TREES ALONG THE WESTERN PROPERTY LINE AND (3) LARGE TREES ALONG THE SOUTHERN BOUNDARY. ADDITIONAL LANDSCAPING AND VEGETATION ALONG THE NORTHERN PROPERTY LINE. LIGHTING: EXISTING LIGHT POLES AND BUILDING LIGHTING SHALL REMAIN AS IS. NO ADDITIONAL LIGHTING IS PROPOSED WITH THE SITE PLAN AMENDMENT. ANY PROPOSED LIGHTING MUST COMPLY WITH REQUIREMENTS OF SECTION 32.7.8 & SECTION 4.17 OF THE ZONING ORDINANCE. LANDSCAPING: A LANDSCAPING PLAN IS PROVIDED WITH THE FINAL SITE PLAN IN ACCORDANCE WITH ALBEMARLE COUNTY ORDINANCE SECTION 32.7.9, SEE SHEET S. STREET TREES SHALL ALSO BE INCLUDED WITH THE LANDSCAPING DESIGN TO INCORPORATE STREET TREES EVERY 40' ALONG THE ROADWAYS. TRASH RECEPTACLES: A PROPOSED TRASH DUMPSTER IS PROPOSED ON -SITE FOR TRASH SERVICE FOR THE BUILDING. PHASING: THIS SITE SHALL BE DEVELOPED IN ONE PHASE. PARKING REQUIRED: RESTAURANT: 2,500 SF x 13 SPACES/1000 SF = 33 SPACES RETAIL: 5,000 SF x 80% x 1 SPACE/100 SF = 40 SPACES COMMERCIAL OFFICE/RETAIL: 28,805 SF x 80% x 1 SPACE/200 SF = 115 SPACES BALLET SCHOOL: 8 PARKING SPACES MANUFACTURING/PROCESSING/ASSEMBLY/FABRICATION: 1 SPACE/EMPLOYEE ON THE LARGEST SHIFT (7 EMPLOYEES) = 7 SPACES 1 SPACE/500 SF OPEN TO PUBLIC (500 SF) = 1 SPACE (2 SPACES MIN. FOR CUSTOMER PARKING) GAS STATION/RETAIL (TMP60-25B): 2,350 SF x 80% x 1 SPACE/100 SF = 19 SPACES TOTAL PARKING REQUIRED: 224 SPACES REQUIRED PARKING PROVIDED: TOTAL PARKING SPACES PROVIDED = 224 SPACES (96 EXISTING PARKING SPACES AND 128 PROPOSED PARKING SPACES - 22 PAVERS, 99 NEW ASPHALT, 7 NEW STRIPED ON EX ASPHALT) NOTE: THERE WILL BE A PARKING EASEMENT ON THE TMP60-25B PARCEL FOR THE EXISTING 15 PARKING SPACES BEHIND THE RETAIL STORE. IVY ROAD COMMERCIAL REDEVELOPMENT PLAN VSMP SAMUEL MILLER MAGISTERIAL DISTRICT ALBEMARLE COUNTY, VIRGINIA \ \ y R=2962.75 L=206.8f ( a, TARY WER MT. `\ 2706 78) TEM P OSMTR ` (D. 2706 \ \ \ \ \ \ \ \ \ \ \ \ T.M.P 60-25 ROSSER ASSOCIATES D.B. 1083-50 D.B. 635-308 PLAT ZONING: HC HIGHWAY COMMERCIAL 1 \ USE: COMMERCIAL OFFICE 95.V) "6f e6 SHEET LAYOUT SCALE: 1" = 60' �o ��OCNCq �o F<FCTR C \a e pow \ q�✓Y � �-�FgSFMF�T � � t o /. 6• PROPOSED 3,280 SF '2 OF MANUFACTURING/ PROCESSING/ ASSEMBLY/& FABRICATION ' xri PROPOSED i8,.Bo SF COMMERCIAL OFFICE/RETAIL T.M.P. 60-24A UNIVERSITY OF VIRGINIA FOUNDATION D.B. 5184, PG.139 ZONING: RA USE: RURAL/RESIDENCE NOTE: LAST (4) SPACES DO NOT COUNT TOWARD OVERALL PARKING 6 20 XXX o G '\ FENCE EXISTING •�• ° MEDICAL OFFICE EXISTING °• SPACE BALLETSCHOOL (2,465 SF) (6,800 SF) GRAPHIC SCALE 30 60 120 ( IN FEET ) I inch = 60 ft. spa EXISTING i4 OFFICE SPACE 8,26o SF 'o `\ PROPOSED 5,000 SF PROPOSED 2,500 SF I PO �0 \ COMMERCIAL RETAIL RESTAURANT O° FENCE \ EXISTING \� \ GAS STATION/ \ , r CONVENIENCE - STORE 2,350 SF -----_� __ ---- -- LO /Ij � I .. I - _ _ 22 F L- 15'< ° $„ / - a -- I WI AOW � � IGN ° POL£°SIGN°o"e SIGN SIG ° SIGN • �o 051GN 0 SIGN -, ---- - - --------- - - _--------- --------------------- o�E ��SaaD ---_-- - - _ v v POLE _ - N7 t 16'00 o�F - - _ _ _ _ - - - - _-------- L 3�87.3�4 PEAR SIGN - - - - - _- - - 240 WATER LINE & (D.B. 1560-435) ----------------------- ------------------------------- T.M.P. 76C-A-01 1 CANTERBURY LLC D.B. 4648, PG.380 ZONING: R-1 RESIDENTIAL USE: SINGLE FAMILY DETACHED LOT RETAINING WALLS: NO RETAINING WALLS ARE PROPOSED WITH THIS PLAN. A STONE WALL, FOR SCREENING PURPOSES ONLY, IS PROPOSED ALONG IVY ROAD ADJACENT TO THE PROPOSED PARKING LOT. RECREATION: N/A CRITICAL SLOPES: MANAGED STEEP SLOPES ARE EXISTING ON SITE AS SHOWN ON THE PLAN. NO IMPACTS TO MANAGED SLOPES ARE CURRENTLY PROPOSED WITH THE DEVELOPMENT. BURIAL SITES: NO CEMETERIES WERE FOUND DURING FIELD INVESTIGATION OF THE SITE. LAND AREA: (TMP-6025A WITH PROPOSED BLA ADJUSTMENT) - TOTAL ACREAGE (4.80 ACRES) EXISTING BUILDINGS: 46,385 SF - 1.06 AC. (22.2%) PROPOSED PAVED PARKING AND TRAVELWAYS: 48,753 SF - 1.12 AC. (23.3%) SIDEWALKS: 5,013 SF - 0.12 ACRES (2.5%) EXISTING PARKING AREA/GRAVEL STORAGE: 46,450 SF - 1.06 ACRES (22.1%) OPEN AREA / LANDSCAPING AREA 62,487 SF - 1.43 ACRES (29.9%) IMPERVIOUS AREAS: 146,601 SF (3.37 AC) TOTAL PAVED PARKING AND CIRCULATION AREA: 100,216 SF T.M.P. 76C-B-01A BERRANG, KATHI D.B. 1998, PG.378 ZONING: R-1 RESIDENTIAL USE: SINGLE FAMILY DETACHED LOT STREAM BUFFERS/FLOODPLAIN: NO STREAM BUFFERS ARE LOCATED ON THE PROPERTY IN ACCORDANCE WITH THE ALBEMARLE COUNTY WATER PROTECTION ORDINANCE. THE PROPERTY ALSO DOES NOT LIE WITHIN THE LIMITS OF A 100-YEAR FLOODPLAIN, PER FEMA MAP NUMBER 51003CO267D ADOPTED FEBRUARY 4, 2005. NO IMPACTS ARE PROPOSED FOR ANY STREAM BUFFERS OR 100 YEAR FLOODPLAIN LIMITS WITH THE REDEVELOPMENT OF THE PROPERTY. THE PROPERTY IS NOT LOCATED WITHIN A STATE DAM INUNDATION ZONE OR FEDERAL DAM INUNDATION ZONE. STORMWATER MANAGEMENT: 2.52 ACRES DISTURBED. THE SITE DECREASES IMPERVIOUS AREA WITHIN THE DISTURBED ACREAGE. THE POST -DEVELOPMENT TP LOAD REDUCTION FOR THE SITE IS 0.74 LB/YEAR. STORMWATER MANAGEMENT FOR THE PROPOSED IMPROVEMENTS ON THE SITE AND WATER QUANTITY REDUCTION SHALL BE ACCOMMODATED WITH ONSITE FACILITIES. THESE FACILITIES, SHALL INCLUDE PERVIOUS PAVERS AND LANDSCAPED GRASS DRY RETENTION AREAS. ADDITIONAL WATER QUALITY NUTRIENT CREDITS MAY BE UTILIZED TO ACHIEVE THE NECESSARY REMOVAL RATES FOR THE DEVELOPMENT. A FINAL WPO AND VSMP PLAN SHALL BE SUBMITTED FOR REVIEW AND APPROVAL, PRIOR TO LAND DISTURBING OPERATIONS AND PRIOR TO FINAL SITE PLAN APPROVAL. NOTE: ALL ROOF DRAINS SHALL DISCHARGE IN A MANNER NOT TO CAUSE A PUBLIC NUISANCE AND NOT OVER SIDEWALKS. Roy Wheeler Realty Cc 0 0111 St. Anne's-Belfield["„ School Belfield Campus `1 PNRAO Central Development Laboratory �i9nr Wooy,Cn 5 � C 250 Atlantic Research Group 0 SUBJECT AREA Pedia Univ, of Charl 8 Q b aj The Market at Bellair Grey _el Iler - State Farm Faulconer Construction Co., Inc _ ® 00 O 9 Q1dj`yR d Printing & Copying Services 25D University of Virginia Police Department Teague Funer., 2s, VICINITY MAP SCALE: 1" = 1000' LEGEND ROADS EXISTING CULVERT DROP INLET & STRUCTURE NO. CURB CURB & GUTTER PROPOSED ASPHALT PROPOSED CONCRETE PROPOSED PAVER OMPERWOUS) BENCH MARK as VDOT STANDARD STOP SIGN zoo EXISTING CONTOUR SHEET INDEX SHEET COVER SHEET 1 EXISTING CONDITIONS & DEMOLITION PLAN 2 EROSION &SEDIMENT CONTROL NARRATIVE 3 EROSION & SEDIMENT CONTROL PLAN - PHASE I 4 EROSION & SEDIMENT CONTROL PLAN - PHASE II 5 EROSION & SEDIMENT CONTROL PLAN - PHASE III 6 EROSION & SEDIMENT CONTROL PLAN DETAILS 7 STORMWATER MANAGEMENT PLAN 8 TOTAL SHEETS 8 NOTES: CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES SHOWN ON PLANS IN AREAS OF CONSTRUCTION PRIOR TO STARTING WORK. CONTACT ENGINEER IMMEDIATELY IF LOCATION OR ELEVATION IS DIFFERENT FROM THAT SHOWN ON THE PLANS, IF THERE APPEARS TO BE A CONFLICT, AND UPON DISCOVERY OF ANY UTILITY NOT SHOWN ON THE PLANS. THE CONTRACTOR MUST LOCATE ALL SURFACE AND SUB -SURFACE UTILITIES PRIOR TO ANY WORK ONSITE. ANY SIDEWALK AND/OR CURB DAMAGE IDENTIFIED IN THE SITE VICINITY DUE TO PROJECT CONSTRUCTION ACTIVITIES AS DETERMINED BY THE VDOT INSPECTOR SHALL BE REPAIRED AT THE CONTRACTOR'S EXPENSE. SIDEWALK WILL BE REPLACED AT THE DIRECTION OF THE VDOT INSPECTOR. ANY EXISTING SIDEWALK THAT IS CURRENTLY DAMAGED AND IN NEED OF REPAIR OR NOT IN COMPLIANCE WITH CURRENT STANDARDS SHOULD BE REPLACED AS PART OF THIS PROJECT AS WELL. IN ADDITION, ANY EXISTING CG-12S ALONG THE PERIMETER OF THE SITE SHOULD BE UPGRADED TO MEET CURRENT STANDARD IF NEEDED. ALL SIGNING AND PAVEMENT MARKINGS SHALL BE CONSISTENT WITH THE MUTCD. ADDITIONAL NOTES: 1. ALL GRASS AND LANDSCAPING AREAS SHALL BE PRIVATELY OWNED AND MAINTAINED. 2. THE STREETS IN THE DEVELOPMENT SHALL BE PRIVATE TRAVELWAY AND TRAVELWAYS AND WILL NOT MEET THE STANDARDS FOR ACCEPTANCE INTO THE SECONDARY SYSTEM OF STATE HIGHWAYS AND WILL NOT BE MAINTAINED BY THE VIRGINIA DEPARTMENT OF TRANSPORTATION OR THE COUNTY OF ALBEMARLE. 3. THE PROPOSED DEVELOPMENT SHALL BE SERVED BY PUBLIC WATER AND SEWER. PROPOSED TRIP GENERATIONS: (ITE TRIP GENERATION, 10TH EDITION) 2,500 SF RESTAURANT = 280 VPD (25 VPH AM & 25 VPH PM) 5,000 SF COMMERCIAL RETAIL = 534 VPD (19 VPH AM & 46 VPH PM) 18,180 SF COMMERCIAL OFFICE/RETAIL = 177 VPD (21 VPH AM & 21 VPH PM) 3,280 SF MANUFACTURING/PROCESSING/ASSEMBLY/FABRICATION = 13 VPD (2 VPH AM & 3 VPH PM) 2,465 SF MEDICAL OFFICE = 86 VPD 6,800 SF BALLET SCHOOL = 26 VPD (4 VPH AM & 6 VPH PM) 2,350 GAS STATION (6 PUMPS): 1,467 VPD (96 VPH AM & 116 VPH PM) TOTAL PROPOSED TRIPS/DAY: 2,570 VPD EXISTING TRIP GENERATIONS: (ITE TRIP GENERATION, 10TH EDITION) 28,960 SF COMMERCIAL RETAIL/HARDWARE = 265 VPD (32 VPH AM & 78 VPH PM) 2,465 SF MEDICAL OFFICE = 86 VPD 6,800 SF BALLET SCHOOL = 26 VPD (4 VPH AM & 6 VPH PM) 2,350 GAS STATION (6 PUMPS): 1,467 VPD (96 VPH AM & 116 VPH PM) TOTAL EXISTING TRIPS/DAY: 1,844 VPD TOTAL INCREASE IN TRIPS/DAY: 726 VPD �TH 077 SCOTT R. COLLINS'­_� �J Lic. No. 035791,�L' �' �S'S' AL E�OZ z O J a r- U 2: Zw� O o U)z Q o H > w 1■■1 W ce 1 W N Q 0 C'7 ZCY) N I� co N W N N W Lij J_ >^^ U) 1 VUj 2 U wLij U) L1J Zw U) JLij � IJ Q 0 CD N V\l 1 z LSLJ O W LLJ 0 L. j LL LU J w Q U � LLU \w G / G O O U U 0 Q O/ 0. \_ H� Ln N JOB NO. 192171 SCALE 1 ff=60' SHEET NO. 1 IRO ou D s� ��A o R=2962.75 � ` �3y L=206.85 -PROPOSED DRAINAGE ? DIVIDE (TYP.) N( MH SOILS fl PROPOSED STOCKPILE LINE LOCATION, SURROUNDED BY - _ , ' - _ , ® SILT FENCE. STOCKPILE TO BE 2 \ a SAKI FR�Y SEEDED IF LEFT UNDISTURBED ESM T. ` ? fl FOR OVER 7 DAYS. (D.B. 270 �� o PO L l TEMP! ONST \ � oN'-_\ � C SMT. T TP PROPOSED TREE (D.B. 27 � SOIL � PROTECTION � � 4 T 36C FENCING /1NSA X X-X-X-X X X-X� IX \ S68 _ V� '` oRT� T/0 EXISTING 12" RWSA 91 x /I/ VCP SANITARY 0/� ` , R / /N SEWER SHALL NOT x x ? E4 / BE DISTURBED ` kFE X-X-X-X� AREA OF EXISTING FC 1 R/0' R s` GRAVEL AND PAVEMENT TO BE \ (O pO \ \ REMOVED B 2 �FR -- - - -- --- 62� 00 8 T EXISTING FENCE OA TO BEREMOVED° , T.M. 60-25A ti 12 OT A 1 EXISTING CEDAR o RES LIGHTPOLE AND ° OVERHEAD POWER DI ° TO BE REMOVED \PQL v PROPOSED TOP= 82.0 V=578.5 SEDIMENT TRAP#3 PHASE I DA=o 34 AC AP AIR PUMP B BOLLARD CO CLEANOUT DI DROP INLET FC FILLER CAP FH FIRE HYDRANT GM GAS METER LP LIGHT POLE MH MANHOLE MW MONTIORING WELL P POLE PT PROPANE TANK S SIGN TB TELEPHONE BOX UL UTILITY LID WM WATER METER WV WATER VALVE YH YARD HYDRANT OVERHEAD UTILITY LINE FENCE GUARDRAIL i EXISTING GATE TO T.M. 60-24A BE UNINSTALLED A D UNIVERSITYD.B. F5184G1NIA PG.139 UNDATION _ XISTING STORM - g \ ZONING: RA EXISTING STORM T EPLACED AR°' IN PHAS fl USE: RURAL/RESIDENCE _����. TO BE DEMOLISHED '; � � IP A XI ESTIN�_DI TOP TO BE PROPOSED i O ' LOWERED FROM a S ` \ SEDIMENT TRAP i S60.7o TO l � � � 560.4 TO ALLOW POSITIVE - PHASE I DA=2.46 AC DRAINAGE FROM TRAP 'L0 EXISTING �P. . EXISTING STORM MANAGED SHALLREMAIN TO SLOPES TO CONVEY SEDIMENT REMAIN fl IRON TRAP OUTFLOW. PIPE x SHALL BE UPGRADED X I -F-0tJ N D IN PHASE II �� 02' - - - �SCOTT R. COLLINS U Lic. No. 035791,1, N C ZONAL E� TOP-581.9 GRAVEL \ IP - - - - - - \ V-578.8 r NVJN= OUT= I I ° X DL TO ' - - fl �j IP 555.50 55.27 WA 15" CMP - - -_ - - - - NOTE: LAST (4) SPACES DO NOT \ \ EXISTING GRAVEL IN v D - COUNT TOWARD OVERALL PARKING Lu V_ AREA TO BE _ 555.36g g g I' DI ° 559.050 NV.IN= /1 \ \ REMOVED FOR CgNC i 555.28 CY) 1••` � � INV OUT= INV.OUT= � 20' fl C PROPOSED ��� - - -- - -- 9 555.50 555.18 G /IMPROVEMENTS ° 6" PLASTIC B s �l ENTRANCE INV IN-555 68 ° x x x N V 1 EXISTING STORM EXISTING BUILDING ENTRANC 562.35 TO BE DEMOLISHED CIP SHALL BE PROTECTED 562.42 n DI fl co \ IN'- PROPOSED � OP= 59.8 � O� IN PHASE III 55 - WITH RIPRAP RING ON SF SILT FENCE SIG V-5 8.4 SOUTH SIDE OF LIMITS OF PROPOSED D ° O ° EXISTING DI DISTURBANCE 2.52 ac. ( ) 1 STORY ° CI E P STUCCO ° PROPOSED TREE \ D = g °ry \ TREE D c� CONCRETE fl C N Z I --I PROTECTION O EASEMENT n 8c BLOCK o- - - _ _ _ _ ° S O FENCING \ \ EXISTING GRAVEL I FOR BUILDINGS 1,z (5,250 SF) ova ° DECK I� uj U J _ D ENCROACHMENT n a D p ^ � AREA TO BE ° 1,, ° REMOVED FOR \ �0� PROPOSED ENTRANCE a I FRAME 1 ° _ WALL fl Tq //O Q_ Q \ \ LANDSCAPING I 562,43 INV IN- BLDG. �/ \ O � I/� Q7) INV IN 555.3 �� Q WILgLOW 554.8ENTRANCE I CONC. DI fl W 1 ENTR 1 560,07 560.06 CASINGS POLE s36 J w \ 3 S2 00 J _ F )TORY METAL D156.93 j PLANTER S�0 62 % W Q \ \ STEPS DI z > >00 FRAME fl Cn Q J B ICK ENTRANCE DIT P= 9.7 OLE W (28,60 SF) CONC. PLANTER S EPOS -ENTRANCE 559.80 �w I V=5 9.1 BLDG. 15" 560.07 _ rn � W ' TRIPLE I INV UT- © AUTO � METAL F J ASH 5 4.7 �, SPKR 1 STORY a • , �9 BLDG. FRAME(D O ' \ \ ALLOW DITCH ADJACENT TO ENTRANCE RAMP BRICK DI �; BLDG. O J I EXISTING \ I I I 562.43 12,175 SF nnn/// BUILDING TO REMAIN PAVED ( ) NEW BOUNDARY PLA TER T.M.P 60-25 OO LINE FOR MANAGED I �� ROBBER ASSOCIATES SLOPES TO � � � �� �, ` �\ I OPERATIONAL IN PHASES I & II - D.B. 1083-50 \ . WHILE DEMOLITION &ROUGH PROPERTY 20' D.B. 635-308 PLAT REMAIN13, 7C0NC. _ ( ) O GRADING IN PROGRESS PROPOSED RIGHT OF 11 CONC. (� v ZONING: (HC) HIGHWAY COMMERCIAL \� ` I WAY DIVERSION O OO ENTRANCE ENTRANCE TOP-559.36 BOX U USE: COMMERCIAL OFFICE L I 560.03 560.03 �4 IN\ = I V= 56. LID � ENTRANCE PR POS DS ICE 562.40 DIM NT I 1 � EXIST. SAN � � � � � � � � I 0 TR P #z �� PAVED _ 556.34 5..5, U HBOX DI © PAV D � W 2 O BBB ° z \ _ I SEWER I I< PH SEi A.o34A .` T.M. 60-25B _ T INK ALIGHT \ LOCATION OF ENTRANCE 1 LOT B WM D559 69 I POL PT ° °u POLE - w I PORTA-POTTIES 562.30 >�GQ F 77 ( TB UL ° POLE CC 1.71 ACRES CLEANOUT � ° UL ° FENCE LIGHT � G PROPOSED B B GAS 1 STORY o ° o O I -I i EXISTING LANDSCAPING LOCATION OF I OU / / v 554. SILT FENCE- INVOUT a ° m ATM D ° � EXISTING GAS ` SE ° METER BRICK ADJACENT TO BUILDING TO RAIN GAUGE ' BE REMOVED METER TO BE I N ° 556.24 BLOCK & D BLDG a D ul `J�J RELOCATED FDCTING LOCATDOUBLE ION_O MAGNOLIAS LEANOU X 5 II FRAME ®w OVERHANG ' OVERHAN WALLED I ENTRANCE I AP ° ° B ° FUELING TANK _ _ _ J B° g WWA W06 �---J - --J' I BUSHES °� � , < < RETAINING YH \/ERHANG GAS PUMPS ER BOLLARD' 0 GRAVEL WALL IGN ° °, ° °° °D° °°° ^° ° ° °° STING 4" SANITARY MAGNOLIA UTI ITY MW °LIGHT °° O PROPOSED SEWER LATERAL TO BE B X I POLE° ° CONCRE°TE° H DD x EXISTIN PAVEMENT O __- CQN� o >_ i p1 DIVERSION REPLACED WITH NEW I LOCATION TO BE R MOVED STEPS ° ° v / EXISTING TREES TO I LIGHT D ETAL D D W > O DIKE 6" PVC SEWER LATER a D � � � BE REMOVED � 21 � '�,i5cy DUMPS ER, i� 5- - POLE °° CANOPY WILLOW TP �,-- ---- -- -- - OAK - O °° n ° °° ° ° ° °° D °° °�OHE ° EXISTING CONC. k VV'i � '�E R ' o D ° ° ' °a H o OHE i i _ O OHE? ° RAMP TO BE M WM��- - � � � ° � °° ° ° POLE °° ° oHE SIGN ° D ° Q REMOVED �/ GN D D (D _ _ SIGN SIGN \ OHE ° �� „ _ FH o �OHE oHE O SIGN WATER XO OHE - `� � SIGN O O 15, - - - PQL� F%- SIGN URB METER C) SOIL WILL W NJK ISTING TRF� - B _ NV IN= CURB MANHOLE ). OAK PAS IRON TO�EMA(N RB - �% �/ 11711-4 - / TOP=568.06 19�' � _ _ I TOP- 0 (� - O _ ING ASPHALT FOU D - - - - - - / / (LID SEALED) `"-� - _ _ PATH TO BE RELOCAT -W- i _ POLE - -_ - I F� SS PEAR - - _ _ IRO IyI �' 16'00,>W 197.�0 --� o , , IP Sd �87.34 Sd0- - S U SbD _ - - - - - SbD SdU - "' �JUND ROCK T�� P7 O _ _ SdD PROPOSED PAVED INVOUT= 7'3 WALL - - S F- SIGf` oHE `7 °-E--- d9 d9 33 u P -C)HE - _ CONSTRUCTION --- w F i - _ - - & GUTTE CE w Sd9 ENTRANCE (12 x70 _ _ _ SHOWN ,U•S• ROUTE 250 IVY ROAD _ Q - 564 Sd9 MIN. w - a cn d 9 WATER LINE & LIMITS OF PROPOSED - RACK DOWN GRADIENT - - - - - - AS 80 WIDE ON PLAT IN D.B. 296-432 JOB NO. oir 24" _ I�tv IN SI Sd9 - DISTURBANCE (2.52 ac.) FROM R/W DIVERSION - _ - (D.B. 1560-435) 192171 .55 INV UT= PROPOSED SIL EXISTING 4" DI - - - - - GRAPI IIC SCALE � �=565.54 5 o S 9 TOP OF DROP INLET Sd9 V IN=560.28 SE FENCE ADJACENT FIRE LINE TO BUILDING ELEVATION = 555.23 SCALE NV.IN= 250 Y RUAD 6_432 - TO ROUTE 250 ao o s 30 60 20 1 ►►-30► - GAS LOCATION OFCONSTRUCTIC) U.S. RUONEPLAT IN D B 2g � EXISTING WATER GAS -POKING & STAGING WITH CRS 80 WIDE LATERAL & METER TO SHOWN AS SHEET NO. SHE BE REPLACED ( IN FEET ) I inch = 30 ft. 4 ` PRE-ReDEVELOPMENT SCALE 1"=50' ` WATER QUANTITY ` BOUNDARY USED FOR CHANNEL AND FLOOD PROTECTION ANALYSIS PO EXISTING IMPERVIOUS -- `� GRAVEL TRAVELWAY I s68- GRAVEL / \ EXISTING ASPHALT \ I - INV.IN= 562.98 q INV.IN= 556.39 \ \ \ DI TOP 12' \ \ \ 565.42 F�V�D GRAVEL EDAR v v v A �FENCv y Pi26E \ \ \ `44 POST- Re D EV E LO P M ENT Post -Development Impervious Areas- Water Quality ; ` SCALE 1"=50' (Defined by the Limits of Disturbance)�H o��� DA A Proposed Asphalt Parking &Circulation 53,464 sf � TO PROPOSED DRY Proposed Concrete Loading Area 1,719 sf RETENTION BASIN Proposed Concrete Sidewalk 5,385 sf ` p 1.41 ac. Public Road 5,208 sf SCOTT R. COLLINS-Z' CN=88, Tc=0.15hr. (D� WATER QUANTITY 65,776 sf U Lic. No. 035791,1, BOUNDARY USED FOR ` - _ CHANNEL AND FLOOD Overall Net Increase in Impervious Area -662 sf PROTECTION ANALYSIS (Within the Proposed Limits of Disturbance) ASS 1SO� I` ZONAL F' I EXISTING RWSAzz" ` VCR SANITARY SEWERPOL LIN - PROPOSED DRY DA C 14 RETENTION BASIN BYPASS FLOW TOTAL 1.46 ac. / �\ CN=85, Tc=0.22hr. `� o �. PROPOSED STORM CONVEYANCE STRUCTURES ` I 7 \ \ \ 6 ' O J ` \ d Q V DAD BYPASS FLOW (� U --- -- ---� - 4• TcaO m DA A-D\ - - ` \ N=9 = .19h 0 cn PAVED � 'GRAVEL �/ \ v C r. 6" PIPE _,r _.,its INV.IN= 556.55 _ ---- GRAVEL \ LIGHT \\ IN 8 � \ \ \ POLE \ 5 .9.9 \ N 7145' I 12" CMP 0 \ �s RRP EXISTING STORM CONVEYANCE STRUCTURES, TYP. \ LIMITS OF PROPOSED DISTURBANCES (2.52 ac.), �II USED FOR WATER QUALI ANALYSIS \ \ r r 9" WILLOW \ i r f NO PROPOSED CHANGES TRIPLE / TO THE EXISTING ASH BUILDING FOOTPRINT \ N \ \ I ROMP ` EXISTING DITCH I I - - - - i 0 \ 21" OAKOW �Go / / /SOON SIGN- �- 4 c u r1 S = Sd� -- STORMWATER MANAGEMENT NARRATIVE: OVERALL SUMMARY: THE PROPOSED STORMWATER MANAGEMENT PLAN COMPLIES WITH PART IIB MINIMUM REQUIREMENTS. THE STORMWATER RUNOFF RATES, VOLUMES AND VELOCITIES RESULTING FROM THIS ReDEVELOPMENT WILL BE IMPROVED PRIOR TO EXITING THE PROJECT. PLEASE SEE THE ATTACHED STORMWATER MANAGEMENT CALCULATIONS PACKET FOR EVIDENCE OF THIS COMPLIANCE. SUMMARIES OF THIS DATA ARE PROVIDED ON THIS PLAN SHEET. THE PROJECT SHALL UTILIZE A DRY RETENTION BASIN, PERMEABLE PAVERS, AND NUTRIENT CREDIT PURCHASE TO MEET STORMWATER QUALITY AND QUANTITY REQUIREMENTS FOR THE SITE. STORMWATER QUALITY SUMMARY: THE VRRM SPREADSHEET FOR ReDEVELOPMENT WAS USED FOR THIS PROJECT AND THE STORMWATER QUALITY AREA BOUNDARY EQUALS THE LIMITS OF DISTURBANCE ASSOCIATED WITH THIS PROJECT. THIS ReDEVELOPMENT PROJECT REQUIRES A TOTAL PHOSPHOROUS REMOVAL OF 0.74 lb/yr. THE REMOVAL OF A PORTION OF THIS REQUIRED PHOSPHOROUS LOADING IS MET THROUGH THE BEST MANAGEMENT PRACTICE OF A LEVEL I PERMEABLE PAVEMENT PARKING LOT. SUBAREA 'DA B' IS TREATED VIA THE LEVEL I PERMEABLE PAVEMENT. THE PROPOSED PERMEABLE PAVERS GENERATE A PHOSPHOROUS REMOVAL RATE OF 0.33 lb/yr. THE REMAINING 0.41 Ib/yr PHOSPHOROUS REMOVAL WILL BE MET VIA NUTRIENT CREDIT PURCHASE. STORMWATER QUANTITY SUMMARY: CURRENTLY, THE EXISTING SITE AREA FLOWS OFFSITE UNTREATED. THE EXISTING SITE WITHIN THE LIMITS OF DISTURBANCE CONSISTS OF A LARGE BUILDING, SPRAWLING GRAVEL PARKING AREA, AND PAVED TRAVELWAY. THE PROPOSED PLAN WILL MAINTAIN THE EXISTING BUILDING, REMOVE THE GRAVEL AREA AND RECONFIGURE THE SITE TO PROVIDE ASPHALT TRAVELWAYS AND PARKING, WHILE DECREASING THE SITE OVERALL IMPERVIOUS AREA. THE PROPOSED PARKING AREA AT THE REAR OF THE BUILDING WILL FLOW TO A DRY RETENTION BASIN, WHERE STORMWATER FLOW WILL BE CAPTURED AND DETAINED BEFORE RELEASING TO THE EXISTING SITE STORM SEWER. THE DRY RETENTION BASIN PROVIDES DETENTION FOR THE 1, 2, 10, AND 100-YEAR STORM WITH 1' FREEBOARD PROVIDED IN THE 100-YEAR STORM. THE PARKING AT THE FRONT OF THE BUILDING SHALL BE TREATED BY PERMEABLE PAVERS, WITH OVERFLOW TO A NEW DROP INLET THAT SHALL TIE INTO THE EXISTING SITE STORM SEWER. FOR THE PURPOSES OF THIS ANALYSIS, THE PERMEABLE PAVER DRAINAGE AREA 'B' IS CONSERVATIVELY CONSIDERED UNROUTED. CHANNEL AND FLOOD PROTECTION SUMMARY: THE PROJECT POINT OF ANALYSIS IS THE 'EXISTING STRUCTURE PARKING LOT', WHICH IS AN EXISTING DROP INLET AND POINT OF ON -SITE STORM DRAIN CONFLUENCE LOCATED IN THE EXISTING DRIVE AISLE ON THE PROPERTY. FROM THIS STRUCTURE THE EXISTING STORM FLOWS TO THE IVY ROAD PUBLIC STORM DRAINAGE SYSTEM. THIS PROPOSED PLAN IMPROVES THE 1, 2, AND 10-YEAR STORM FLOWS TO THIS POINT OF ANALYSIS. FLOOD PROTECTION FOR THE SITE IS MET THROUGH 9 VAC 25-870-66, SUBSECTION C.2.b. CHANNEL PROTECTION FOR THE SITE IS MET THROUGH 9 VAC 25-870-66, SUBSECTION B.1.a. WATERSHED SUMMARY Area, 1-year 2-year Flow, 10-year Flow, CN ac. Flow, cfs cfs cfs DA A-D(Pre-Dev.) 88 5.34 10.03 13.13 22.75 DA A (Post-Dev.) 88 1.41 1.51 2.10 4.76 DA B (Post-Dev.) 90 0.46 0.95 1.23 2.07 DA C (Post-Dev.) 85 1.46 2.46 3.27 5.83 DA D (Post-Dev.) 94 2.01 4.93 6.18 9.97 Totals= 5.34 9.85 12.78 22.63 LEGEND: AP AIR PUMP B BOLLARD CO CLEANOUT DI DROP INLET FC FILLER CAP FH FIRE HYDRANT GM GAS METER LP LIGHT POLE Pre -Development Impervious Areas- Water Quality (Defined by the Limits of Disturbance) Existing Dirt Parking 1,636 sf Ex i sti ng G rave I Parking 43,277 sf Existing Concrete Parking 1,739 sf Existing Asphalt Parking 13,121 sf Existing Sidewalk 1,457 sf Public Road 5,208 sf MH MANHOLE MW MONTIORING WELL P POLE PT PROPANE TANK S SIGN TB TELEPHONE BOX ILL UTILITY LID WM WATER METER WV WATER VALVE YH YARD HYDRANT OVERHEAD UTILITY LINE FENCE GUARDRAIL CONCRETE GRAVEL PAVEMENT MANAGED SLOPES 66,43i TO STR EXISTING \ \ _ AR z _J PARKING LOT \ \ - - O O Q 5.34 ac. r- T \ EXISTING CN=88, Tc=0.26hr. \ Z MANAGED �O� .. \ \ � � � i--i V �,., Zoe W SLOPES TO REMAIN EXISTING PROPERTY LINE A C \ _ TO BE RELOCATED YP FL - _ - - WITH A BLA - W I PROPOSED BLA-o.gi I ACRES TO I SUBRACTED FROM I ? TMP 6o-25B AND �/ A v •° ° I ADDED TO 60-25A SIG _ \ I II sic _ FEAc Water Quantity Site Coverage ` \ °° Pre -Development Drainage Areas A-D Coverage Summary \ i IMITS OF PROPOSED „J FEAc ° Existing Dirt Parking 1,639 sf ` \ } .52 ac. _ _ DISTURBANCES (2 � e• % USE D FOR WATER QUALI Y% ° Existing Gravel Parking 43,968 sf Existing Concrete 4,118 sf ANALYSIS ` \ � I • s /I� „ ° ° ° 6 I Existing Asphalt 43,898 sf " I i n Existing Buildings 42,464 sf `) CD Existing Woods 51,543 sf Q � v r � � � Existing Lawn 44,980 sf 0 POINT OF WATER 232,610 sf i ' 0 POINT OF WATER QUANTITY ANALYSIS UANTITY ANALYSIS / Q ' 6 NO PROPOSED CHANGES Q EX STR PARKING LOT Post -Development Drainage Area A Coverage Summary 1 O f OT P g g ry TO THE EXISTING L-- 1\ ' Proposed Concrete Sidewalk 1,645 sf a I •k BUILDING FOOTPRINT 1 I 1 I Proposed Asphalt 28,758 sf ' v 0 III Existing Buildings 0 sf I Proposed Woods 17,034 sf CONTRACTOR SHALL INSTALL Proposed Lawn 13,982 sf A 12" WIDE, 6" DEEP PEA I 61,419 sf GRAVEL STRIP IMMEDIATELY UPLAND OF THE CURB/EDGE OF PAVEMENT WHERE I ` Po S B C A i t D l D t Pos-eveopmenranage Area overage Summary II ` Po PERVIOUS RUNOFF DRAINS \ I ^ EXISTING ASPHALT i Proposed Concrete Sidewalk/Pavers 6,033 sf ONTO THE PERMEABLE I EXISTIN ASPHALT i (o L.L INV Proposed Asphalt 5,230 sf PAVERS, TYPICAL. THE 8 I I I INV co Existing Buildings 0 sf 12"Wx6"D PEA GRAVEL STRIP I I r Proposed Woods 235 sf SHALL SERVE AS Proposed Lawn 8,539 sf PRE-TREATMENT TO AVOID 20,037 sf SEDIMENT WASH -ON. �' T 0000 I _ M 0 =� Post -Development Drainage Area C Coverage Summary __0000 _\ vv w1�8 w o posed Asphalt 8,015 sf Proposed Concrete Sidewalk 1,283 sf Existing Buildings 13,750 sf x _ v _ / - g/ p z o slcN n- Proposed Lawn 24,048 sf / b� PDev Proposed Woods 24,048 sf OSED PERMEABLE PAVERS TO PROVIDE O STORMWATER QUALITY TREATMENT. THE UJ - - - �L 63,598 sf ,- PERMEABLE PAVERS SHALL ACT AS AN CV N \ s PEAR Sd9 Sd� TO PROPOSED / _ POLE N , s INFILTRATING DEVICE FOR INITIAL RUNOFF, CV G Sd9 Post -Development Drainage Area D Coverage Summary PERVIOUS PAVERS / / , PROVIDING GROUNDWATER RECHARGE. ANY /1 z d� Proposed Concrete Sidewalk 3,733 sf 0.46 ac. SIG\ „E�°„E- d� EXCESS RUNOFF NOT INFILTRATED SHALL BE Q �L CN=90, Tc=0.23hr. / - _ DIRECTED TO UNDERDRAINS AND BE SLOWLY \ O J - Proposed Asphalt 38,Z02 sf r 64 Sd9 RELEASED WHILE THE STORM WATER IS Existing Buildings 28,714 sf _ ��_ S�� DETAINED. DURING SIGNIFICANT RAINFALL J 1121- _ Proposed Woods 10,226 sf - -9 - IVY ROAD LU UJIVY ROAD _ _ �s _ - - EVENTS THE TERTIARY RUNOFF WILL FLOW - - Proposed Lawn 6,680 sf �W S 9� ' _ INTO DROP INLET 2 FOR EMERGENCY BYPASS. J 87,555 sf Concrete Pagers Permeable ,Jdant Material Open -g Faded 3-- Bedding Course -- r Base Reservoif J t Open -graded Ar _Subbase Reservoir Li riderdrain ` (as requ1Ted) Optional Geotextfle '-- lender Subbase Uncarnpacted Subgrade Soil Figure 7.3. Typical Detail (.Source: Smith. 2009) Permeable Pavement SIx 1 m Marie W BQdikig LaYSF (ai� airecw 0 r71a urapmrgr) Fi�S�rybli: I. d1J�r. ) I;� Pol ato Uncler 1, &2,e&6 .1.0 ❑vC Figure 7.4. Typical Section Permeable Pavement Level I wn-woue rhle c01&5 13{5j4 PERMEABLE PAVER INSTALLATION GENERAL NOTES: U) LU Q LU 1. EACH LAYER/LIFT OF NO. 2 AND NO. 57 STONE REQUIRES A MINIMUM CENTRIFUGAL FORCE COMPACTION OF 53,000. UJ 2. CONSTRUCTION & PREPARATION OF PERMEABLE PAVERS, STONE BASE AND UNDERDRAIN SYSTEM SHALL BE IN ACCORDANCE w/ MANUFACTURER w UJ SPECIFICATIONS. 121L V 3. CONTRACTOR SHALL CONDUCT A GEOTECHNICAL INVESTIGATION OF THE SOIL UNDERNEATH THE PROPOSED PAVERS AFTER FINAL GRADE HAS BEEN O Q ACHIEVED TO DETERMINE THE INFILTRATION AND CBR RATINGS. CONTRACTOR SHALL PROVIDE THE ENGINEER WITH THESE RESULTS PRIOR TO ORDERING AND INSTALLATION OF THE STONE BASE FOR THE PERMEABLE PAVERS TO ENSURE AN ADEQUATE DESIGN. IF A CBR RATIO OF THE L9 J z PAVERS UNDERLYING SOILS IS LESS THAN 4% THEN THE CONTRACTOR SHALL COMPACT THE SOIL TO AT LEAST 95% OF STANDARD PROCTOR DENSITY. 4. ALL OPEN GRADED STONE LAYERS SHALL BE CLEAN & DOUBLE WASHED IN ACCORDANCE WITH DEQ REGULATIONS. "CLEAN" STONE IS SCREENED TO H-111 C SIZE AND THE BULK OF THE FINES/DUST IS REMOVED, BUT THERE IS STILL DUST ON THE STONE. "WASHED" STONE IS WASHED THROUGH THE Z G U SCREENING PROCESS AND/OR MANUALLY WASHED. U 5. WHERE UNDERDRAIN CLEANOUTS ARE PROPOSED WITHIN PAVED AREAS & ARE SUBJECT TO VEHICULAR TRAFFIC, CLEANOUTS SHALL BE ENCASED IN LL 018" CONCRETE PAD FOR THE UPPER 24". THE CLEANOUT FRAME & LID SHALL BE CONSTRUCTED OF CAST IRON, OR A SIMILAR MATERIAL THAT IS i w STRUCTURALLY FORTIFIED. UJ 6. THE PERMEABLE PAVERS' STONE BASE SHALL HAVE A FILTER FABRIC UNDERLAYMENT BENEATH IT. UNDERLAYMENT SHALL BE CAPABLE OF PASSING W �e C RUNOFF THROUGH IT TO ALLOW FOR ADEQUATE INFILTRATION. CONTRACTOR SHALL WORK CLOSELY WITH THE UNDERLAYMENT's MANUFACTURER UJ Q ENSURING THE SELECTED MATERIAL IS SUFFICIENT AND ALL CONSTRUCTION REQUIREMENTS ARE MET. 7. THE PERMEABLE PAVER STONE BED SHALL INCLUDE 4" UNDERDRAINS, AS SHOWN, WITH 1% MIN. WITH POSITIVE DRAINAGE. PROPOSED DRY RETENTION BASIN DETAIL 2: : C SCALE: 1"=20' O G FIGURE 7.4 SITE -SPECIFIC NOTES: U) ( � 1. THE 'PERMEABLE JOINT MATERIAL' SHALL BE VD # # 89 8 OR AGGREGATE IN THE �/ OT 9 Ln OPENINGS BETWEEN THE PAVERS. # DRIVE ISLE T SERV ~ O 2. THE 'OPEN -GRADED BEDDING COURSE' SHALL BE 2" THICK VDOT #8 AGGREGATE. AS R ENTIO BASIN w 0 3. THE 'OPEN -GRADED BASE RESERVOIR' SHALL BE 4" THICK VDOT #57 CLEAN STONE. - - - - SAFETY BEN Z LLI < U) RESERVOIR TO BE CRUSHED AGGREGATE. - - - - - - - - - 4. THE 'OPEN -GRADED SUBBASE RESERVOIR' SHALL BE 9" THICK VDOT #2 CLEAN STONE. RESERVOIR TO BE CRUSHED AGGREGATE. O - 0 5. THE 'GEOTEXTILE UNDER SUBBASE' SHALL BE TENSAR TX-5 TRIANGULAR GRID, OR / EQUIVALENT. 6. THE 'UNDERDRAIN' SHALL BE 4" PERFORATED RIGID PVC WITH A MINIMUM 1% SLOPE. NOTE, \ RB CUT TYP.) T PROVID ` UNDERDRAINS LOCATED OUTSIDE OF THE PERMEABLE PAVERS SHALL BE RIGID ST MW ER INF OW TO ONd-, T NON -PERFORATED PVC PIPES WITH A MINIMUM 1% SLOPE. THE UNDERDRAINS SHALL HAVE \' LLl > A 12" DEEP x 24" WIDE STONE INFILTRATION SUMP LOCATED BENEATH THE PIPE. \\ STIR 16 4" ADS SER W/ ASH R CK \ RIM=559. General Construction notes for Stormwater Management Plans \ 3:I 16 4-3" MID FL ORIFICES T 558.7 Q L^ , 1. All dams and constructed fill to be within 95% of 3-4" LOW FLO RIFICES AT 556/48 U T 1 maximum dry density and 2% of optimum moisture content. PIPE 15 - 15" A BARREL Q Nt All fill material to be approved by a geotechnical engineer. INV 556.48, S=O. %,L=147.41' 0 A geotechnical engineer is to be present during N N construction of dams. 0 2. Pipe and riser joints are to be watertight within stormwater Management facilities. _ _ 3. For temporary sediment traps or basins which are to be J converted to permanent stormwater management facilities; S F conversion is not to take place until the site is stabilized, F_ F- and permission has been obtained from the erosion control \ w w inspector. \ - O Lu \ cr_1 _ V 3:1 JOB NO. \ 192171 \ V SCALE 1►►-50I \\ \ SHEET NO. \6, 8