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Home My WebLink AboutWPO201500098 Plan - VSMP WPO VSMP 2018-02-06GENERAL NOTES DEVELOPER: RIVERBEND DEVELOPMENT COMPANY 321 E MAIN S, SUITE 201 CHARLOTTESVILLE, VA 22902 ATTN. ALAN TAYLOR ENGINEER: COLLINS ENGINEERING 200 GARRETT ST, SUITE K CHARLOTTESVILLE, VA 22902 (434)293-3719 PRE-APPLICA TION CONFERENCE. • FEBRUARY 24, 2014 TAX MAP NO.: 07600-00-00-049BO DB 3310 PG 743 65.90 ACRES 07600-00-00-049CO DB 3310 PG 743 5.45 ACRES 07600-00-00-051CO DB 3310 PG 743 5.10 ACRES TOTAL PROJECT AREA: 77.13 ACRES TOTAL TMP CURRENT AC. (+) AC. (-) AC. =FINAL AC. 76-498 65.90 AC + 0.59 - 0.00 =66.49 AC. 76-49C 5.45 AC + 1.15 - 0.53 = 6.07 AC. 76-51C 5.10 AC + 0.00 - 0.53 = 4.57 AC. = 77.13 AC. A BLA HAS BEEN RECORDED, WHICH ADDED 0.59 ACRES TO TMP 76-49B FROM TMP 89-73D. A BLA HAS BEEN RECORDED, WHICH ADDED 1.15 ACRES TO TMP 76-49C FROM TMP 76-518, A BLA HAS BEEN RECORDED, WHICH ADDED 0.53 ACRES FROM TMP 76-49C AND 0.53 ACRES FROM TMP 76-51C (1.06 ACRES TOTAL) TO TMP 76-51B. ZONING: ENTRANCE CORRIDOR, STEEP SLOPES OVERLAY, AIRPORT IMPACT AREA, AND FLOOD HAZARD OVERLA Y R-1 RESIDENTIAL (ALL PARCELS) -STANDARD LEVEL CLUSTER DEVELOPMENT BEING IMPLEMENTED IN THE RURAL AREA. -BONUS LEVEL CLUSTER DEVELOPMENT DENSITY STANDARDS ARE BEING IMPLEMENTED WITHIN THE DEVELOPMENT AREA. DENSITY- RURAL AREA: 0.97 DU/AG MAX WITH 30,000 SF MIN. LOTS WITH 100 FEET MIN. FRONTAGE DEVELOPMENT AREA: 1.2125 DU/AC. MAX WITH 20,000 SF MIN. LOTS WITH 80 FEET MIN. FRONTAGE BONUS LEVEL CLUSTER DEVELOPMENT CALCULATIONS.- STANDARD ALCULATIONS:STANDARD LEVEL GROSS DENSITY 0.97 DU/AC. +59 DENSITY BONUS FOR STREET TREES AS SPECIFIED IN SEC. 32.7.9 +109 DENSITY BONUS FOR MAINTENANCE OF EXISTING WOODED AREAS IN EXCESS OF 2090 + 109 DENSITY BONUS FOR SERVING ALL LOTS WITH AN INTERNAL ROAD SYSTEM 0.97 x [1+0.25] = 1.2125 DU/AC PROPOSED DENSITY- 31.97 AC. WITHIN RURAL AREA X 0.9700 = 31 UNITS ALLOWED 44.57 AC. WITHIN DEVELOPMENT AREA X 1.2125 = 54 UNITS ALLOWED 0.59 AC. FROM BLA WITH TMP89-73D X 0.0000 = 0 UNITS OPEN SPA CE: AREA #1: 22.49 AC. AREA #5: 0.21 AC. AREA #2: 0.18 AC. AREA #6: 0.13 AC. AREA #3: 0.39 AC. AREA #7.• 0.52 AC. AREA #4: 0.12 AC. AREA #8: 0.03 AC. TOTAL OPEN SPACE PROPOSED = 24.07 AC; 24.07 AC / 77.13 AC = 31.29' TOTAL OPEN SPACE REQUIRED: 77.13 x 259• = 19.28 AC. OPEN SPACE TO BE OWNED AND MAINTAINED BY THE HOA. ALL OPEN SPACE SHALL BE RESERVED IN A DEED FOR THE COMMON USE OF LOT OWNERS IN THE SUBDIVISION. TREE PRESERVATION: 14.65 ACRES / (77.13 AC TOTAL) =19.09 PROVIDED TREE PRESERVATION REQUIRED 77.13 x 209 = 15.43 AC. BUILDING HEIGHTS.- MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 35 FEET SETBA CKS.• FRONT 25' SIDE- 15' REAR: 20' SUBDIVISION STREETS. CURB & GUTTER WATERSHED: BISCUIT RUN / MOORES CREEK WATERSHED - THIS LAND IS NOT WITHIN A WATER SUPPLY WATERSHED AGRICULTURAL/ FORESTAL DISTRICT- NONE TOPO & SURVEY TOPOGRAPHY IS COMPILED FROM SURVEY BY A COMBINATION OF ROUDABUSH, GALE AND ASSOCIATES AND LOUISA AERIAL SURVEYS INC., JANUARY 2014, BELL SURVEYS AERIAL TOPO IN 2014, AND ALBEMARLE COUNTY RECORDED SUBDIVISION PLATS BOUNDARY INFORMATION IS COMPILED FROM BOUNDARY DATA PROVIDED BY ROUDABUSH, GALE, AND ASSOCIATES ON JUNE 26, 2014 AND ALBEMARLE COUNTY RECORDED SUBDIVISION PLATS. FINAL SITE PLAN SHALL INCLUDE AN UPDATED BOUNDARY SURVEY. DA TUM: NAD 83 EXISTING VEGETA TION: PARTIALLY WOODED LIGHTING: NO LIGHTING IS PROPOSED PHASING: SITE TO BE DEVELOPED IN A MINIMUM OF FOUR (4) PHASES. FINAL PHASE L/MJTS TO BE DETERMINED WITH CONSTRUCTION PLANS AND SUBDIVISION PLATTING. ALL OPEN SPACE MUST BE A MINIMUM OF 259 OR GREATER FOR EACH PHASE OF THE DEVELOPMENT. PARKING: 2 OFF-STREET PARKING SPACES SHALL BE PROVIDED ON EACH SINGLE-FAMILY LOT. ON -STREET PARKING SHALL BE PROVIDED ON ONE SIDE OF ALL GS-SSAR ROADS. BUILDING SITES: PARCELS 1-84 MAY NOT BE FURTHER DIVIDED. A MINIMUM OF 3,231 SF BUILDING SITE AREA IS PROVIDED ON EACH LOT. ONLY (1) DWELLING UNIT PER LOT SHALL BE ALLOWED. BURIAL SITES: NO CEMETERIES WERE FOUND DURING FIELD INVESTIGATION OF THE SITE. STREAM BUFFERS/FLOODPLAIN: THE STREAM BUFFERS SHOWN HEREIN SHALL BE MANAGED IN ACCORDANCE WITH THE ALBEMARLE COUNTY WATER PROTECTION ORDINANCE. THIS 100 -YEAR FLOODPLAIN LIMITS EXIST ON 77-1E SUBJECT PARCEL, PER ON FEMA MAP NUMBERS 51003CO229D & 51003CO245D ADOPTED FEBRUARY 4, 2005. THE PROPOSED DEVELOPMENT SEDIMENT BASIN OUTFALL STRUCTURES AND SANITARY SEWER EXIST WITHIN THESE LIMITS. THE PROPERTY IS NOT WITHIN A DAM INUNDATION ZONE. RETAINING WALLS: A RETAINING WALL IS PROPOSED AS A FEATURE OF SWM FACILITY A. MAX. WALL HEIGHT PROPOSED IS 75'. AREAS LOTS: 43 71 AC. RIGH T - OF- WAY.• 9.57 AC. OPEN SPA CE: 23.85 AC. IMPERVIOUS AREAS: SEE SWM CRITICAL SLOPES: CRITICAL SLOPES, MANAGED STEEP SLOPES, AND PRESERVED STEEP SLOPES ARE EXISTING ON SITE AS SHOWN ON THE PLAN. A PORTION OF THE EXISTING CRITICAL SLOPES AND PRESERVED STEEP SLOPES SHALL BE IMPACTED FOR THE PURPOSE OF INSTALLING SANITARY SEWER INFRASTRUCTURE. EXTRA CARE SHALL BE TAKEN TO LIMIT IMPACTS IN THESE AREAS TO THE MINIMUM NECESSARY TO CONSTRUCT THE SANITARY SEWER LINES, AS NOTED ON THE PLANS. ACSAjACSA UTILITY CONTRACTOR: UTILITY CONTRACTOR SHALL LIMIT CLEARING, EXCA VA TION, 7RENCHING TO MINIMUM NECESSARY TO INSTALL 8" SANITARY SEWER 7RANSMISSION LINE ACROSS CRI77CAL OR STEEP SLOPES RETAINING WALL NO7F- NO CANOPY OR UNDERSTORY 7REES SHALL BE PLAN7ED WI7HIN 7EN (10) FEET OF 7HE BACK OF 77 -IE TOP OF 7HE RETAINING WALL. PAVED PATH NO7F- 1, 60OLF OF 10' WIDE PAVED PA 7H WILL BE SHOWN ON (FUTURE) AMENDED ROAD PLANS FOR WINTERGREEN FARM SUBDIVISION. MfINTERGREEN FARM VSMP PLAN 1 #1 9 . -I I a 10W SCOTTSVILLE DISTRICT ALBEMARLE COUNTY, VIRGINIA SHEET LAYOUT SCALE: 1" = 150' DEVELOPER RIVERBEND DEVELOPMENT COMPANY 321 E MAIN ST, SUITE 201 CHARLOTTESVILLE, VA 22902 rYYY VSMP AMENDMENT #1 PROPOSED CHANGES: ATHIS PLAN WAS UPDATED TO INCLUDE A PROPOSED TRAILWAY ALONG SUNSET AVENUE. THE APPROVED WATER QUALITY, WATER QUANTITY AND TREATMENT VOLUMES WERE CROSS REFERENCED TO ENSURE THE DEVELOPMENT & SWM FACILITY A COULD ACCEPT THE MINOR INCREASE IN IMPERVIOUS AREA. l l_AJl_A.l_.L.LAJI_JIAJIAAJLJLJIAJLJIJ:JL_I lA A - ,k A- A A A A A A it A Ami A A A A ENGINEER COLLINS ENGINEERING 200 GARRETT STREET, SUITE K CHARLOTTESVILLE, VA 22902 434.293.3719 VICINITY MAP SCALE: 1" = 2000' LEGEND "A ,,,___._,,, EXISTING CULVERT CUL VERT BENCH MARK DROP INLET & STRUCTURE NO. CLEARING LIMITS CURB VDOT STANDARD STOP SIGN CURB & GUTTER EXISTING CONTOUR PROPOSED PA VEMEN T 200 240.55 EC -3A DITCH 6 - DEPTH OF EC -3A DITCH EC -2 DITCH 6" DEPTH OF EC -2 DITCH "A ,,,___._,,, EARTH DITCH DRI VE WA Y CUL VER T BENCH MARK _ CLEARING LIMITS VDOT STANDARD STOP SIGN EXISTING CONTOUR PROPOSED CONTOUR 200 240.55 PROPOSED SPOT ELEVATION TBC DENOTES TOP/BACK OF CURB TAB DENOTES TOP OF BOX APPROVED by the Albemarle County Community Development Department Date Z JkLijjw '#',S COTT 'R. COLLINS No. 35191 12�1 ��SS'j oNAL E�C�� z O F- a U in LU n z O V) w V) Z 0 W Q H Q N W ce z O H a U Lf) m n W z V > z LU ce te -HE PRO -1 THE SEDIMENT BASINS& INS [ALL I -ROL STRUCTURES IN ACCORDANCE WITH THE PROPOSED PLANS. TLET CONI THE CONTRACTOR SHALL RETROFI POSED STORMWATER MANAGEMENT FACILITIES. THE CONTRACTOR SHALL ENT FOREBAYS, AQUATIC BENCHES, WETLAND SHELVES AND THE OU STORMWATER MANAGEMENT SUMMARY INSTALL SEDIM V Total Proposed impervious Areas CONVERSION OF THE BASINS SHALL OCCUR ONLY AFTER COUNTY INSPECTOR APPROVAL AND SHALL BE IN ACCORDANCE WITH VESCH & VSMH REQUIREMENTS. 192,125 sf F Sidewalk 56,100 sf SCOTT* R. COLLINS THE PLAN ALSO IMPLEMENTS CREATIVE DESIG Roadway IN z IN NO If 01 s/ �Tj s/yr. THE MINIMIZES LAND DISTURBANCE AND MAXIMIZES OPEN SPACES AND BUFFER PRESERVATION. THE PROPOSED PLAN UTILIZES A CLUSTER DEVELOPMENT THAT NS WITH THE ROAD/LOT LAYOUT TO MINIMIZE ITS IMPERVIOUS OOTPRINT MIZE THE AMOUNT OF GRADING REQUIRED, THE END RESULT IS A DEVELOPMENT THAT REQUIRES A TOTAL PHOSPHOROUS LO Residences 180 600 sf s/y8 U- No, 35791 DEVELOPMENT ACHIEVES WATER QUALITY COMPLIANCE BY REMOVING A TOTAL PHOSPHOROUS LOAD 0 0, 7 %ZE MITHE ATTACHED VRRM x 0 sf 15,60 CALCULATIONS FOR EVIDENCE OF THIS COMPLIANCE, AMENDMENT's Trailway THIS DEVELOPMENT ALSO UTILIZES ENVIRONMENTAL SITE DESIGN (ESD) TECHNIQUES AND PRACTICES IN ACCORDANCE WITH T X;, 444,425 sf HE ]ULY 2013 DRAFT VSMH. V,� ONAL Subarea 'A' impervious Areas z� EXAMPLES OF THE ESD TECHNIQUES AND PRACTICES PROPOSED ARE AS FOLLOWS: Roadway 84,125 sf ,AL AREAS. A. ESD PRACTICE THE PROPOSED PRESERVATION OF UNDISTURBED NATUP F SHO Sidewalk 25,000 sf (7711S IS ACCOMPLISHED THROUGH AN EASEMENT DEDICA RON OF THE STREAM BUFFER & THE UDISTURBED NATURAL A EAS mv. THIS sf VEL GPM M BUFFER AREAS OUTSIDE OF THOSE PROPOSED Is EASEMENT WILI PROHIBIT FUTURE D' EN r AND D' TURBANCES V11THIN THE STREA, Residences (31 Full + 2 Half Lots) 68,800 MYTH THIS PLAN AND THOSE APPROVED f xi in moer E I vious Areas to Remain 38520 s B Y IHE� COUNTY) 13� ESD PRACTICE #2: THE PROPOSED PRESERVATION OF RIPARIAN BUFFERS, T AMEINNID� -N I S I (THIS IS ACCOMPLISHED THROUGH THE EASEMENT DEDICATION NOTED ABOVE IN ESD PRACTICE FOR THE S7REAM BUFFER,) railway 34 sf -k-A-A--A A C� ESD PRACTICE #3: THE PROPOSED PRESERVATION OR PLANTING OF NATIVE TREES 225,785 sf (7IIIS IS ACCOMPLISHED TH LIMITING THE PROPOSED DISTURBANCES IN THE EROSION & SEDIMENT CONTROL PLAN. THE LIMITS OF ROUCk 57,850 sf ----- — ---- - 'Subarea '13' Proposed Imperviou NCE REMAIN OU TS/DE THE IS OF EXISTING NA T1 VE TREES 7HA T ARE PROPOSED TO RE A A L 7HE ROAD PLAN FOR THE M _)NALL Y ITIGA PON PLANS ARE PROPOSED. TTLEE PRESERVATION AREA5. ADDIR( Roadway NSidewalk 17,450 s f (THIS DEVELOPMENT DISTURBANCES TO 7HE FLOODPLAIN AREAS WHERE POSSIBLE D, ESD PRACTICE #4: THE PROPOSED AVOIDANCE OF DISTURBANCE WITHIN FLOODPLAIN AREAS. 52,675 sf Residences (24 Full + 1 Half Lots) E ESD PRACTICE #5: THE PROPOSED AVOIDANCE OF DISTURBANCE WITHIN STEEP SLOPES WHERE POSSIBLE, Existing Impervious Areas to Remain 15350 sf F� ESD PRACTICE #6: THE PROPOSED DES' — ----- FITS THE TERRAIN. (THIS' DEVELOPMENT LIMITS LOT GRADING, HAS MINIMAL DISTURBANCES WITH THE PROPOSED ROADS AND PLACES SVIM FACILITIES IN HIS DEVELOPMENT DISTURBANCES TO ALBEARLE COUNTY DEFINED STEEP SLOPES.) 143,325 sf L EXISTING LOW AREAS OUTSIDE OF STREAM BUFFE _N r,5) -RS, FLOODPLAI AREAS & EXISTING POWER EASEE ----- -- - ... -ED IN LESS SENSITIVE AREAS .... .. G ESD PRACTICE #7: THE PROPOSED DEVELOPMENT IS LOCATE 'Subarea 'C' Proposed Impervious Areas z 0 8,000 sf 2,050 sf (77HIS PROJECT CLUSTERS 17S DEVELOPMENT AS /S EVIDENT IN THE PROPOSED it Roa ay (THIS DF VEL OPEN T A VOIDS DIS TURBA NCES TO THE A40RE EN V IRONMENTAL SENSITIVE AREAQ INCLUSIVE OF THE STEEP SLOPES, STREAM BUFFERS AND FLOODPLAIN AREAS.) H, ESD PRACTICE #8: REDUCED LIMITS OF DISTURBANCES R _S IN THE MORE AND AVOIDS DISTU BAN C� LAYOUT Sidewalk SENSITIVE AREAS ALONG THE STREAMS) '[Reidrlwenres (d Full + 0 Half Lots) 8,600 sf U U) 18650 sf LIMITS OF THE RIGHT-OF-WAY AND LOTS. 7HF I . ESD PRACTICE #9: PROPOSED USE OF OPEN SPACE (77HIS PROJECT CLUSTERS ITS DEVELOPMENT AND UTILIZES OPEN PACE OUTSIDE OF THE ........... 'y 'N SPA CES IN EXCESS OF 251-..) ......... . .. .... Subarea V Proposed Impervious Areas 0 ELDS OPL CLUSTER DEVELOPM[N7 STRATEGY YIL ...... J. ESD PRACTICE #10: CREATIVE DEVELOPMENT DESIGN U) -1E CLUSTERED DEVELOPMENT WITH SIGNIFICANT OPEN SPACES, COUPLED WITH THE ROAD DESIGN RESULTIG IN LIMITED LOT GRADING, > PRO WDES FOR A CREA R VE DE IIEL OPMEN T DESI GN VA T L/410TS DISTURBANCES N A LOW IMPACT FASHION CONSISIENT WITH CHAPTER 6 OF LU (TI Roadway 42,150 sf ........... 201,3 V5MH DRAFT, ide S walk 11,600 sf THr K. ESD PRACTICE #11: REDUCED ROADWAY WIDTHS AND LENGTHS RP, Fdences (5 Full + 8 Half Lots) 19,350 sf PROPOSED HS A! HE PLAN MINIMIZES 7HF Eu ROADWAYS BY ... . ... . (THE PLAN UTILIZES S, OR TES T WID I -LOWED BY 'IDOT AISO, 7 L , G THS 0, EANING 73,100 sf CUL --SACS FOR LOT FRONT -DE /A IIING VARIOUS AGE� AND DOLS NOT PROPOSE SINGLE FRONTAGE LOTS. ME ALL ROADWAYS HAVE - - --------- ESD PRACTICE 1"17: USE OF BUFFERS _S ON EITHER SIDE OF THE ROAD, HERE13Y MINIMIZING ROADWAY FRONTAGE PER LOT LO ED IMPERVIOUS FOOTPRINTS L. ESD PRACTICE #12: REDUCI Subarea 'E' Proposed Impervious Areas - WITH ESD ill, THE ROADWAY IMPERIOUS AREAS WERE MINIMIZED TO THE FULLEST EXTENT POSSIBLE.) -E (/N ACCORDAN(. M. Roadway 0 sf GETATED AREAS REDUCE RUNOFF, I/N ACCORDANCE VVITH ES0 FLOODPLAINS AND UNDISTURBED VE #17, THE NA TURA L S FE FEA TURES OF Sidewalk 0 sf TS AND SEDIMENT RECYCLE NUTRIENTS, AND MAXINTIZEES ON-SITE PROVIDING INFILTRATION AND STORMINATER FILTERING OF POLLUAN STORAGE OF STORMAiATER.' Residences (0 Full + 5 Half Lots) 5,37S sf S,375 sf (THE PROPOSED GRADING PLAN AND VTRIV WATER QUALI TY CALCULA TIONS ALLOW FOR 7HE PEAR POPTIOl"IS OF SPECIFIC L 0 IS TO DRAIN N, ESD PRACTICE #20: USE OF BUFFERS -E Proposed Impervious Areas Outside of Subareas A A W4 Y FROM THE ROAD ANDIOR HOMES TOWARDS TO THE BUFFERS.) .. .... .... R LU Genera Construction notes for Storrinwater Manacement Plans 0 sf y I' j 0 sf -ns and constructed fil to be Wl:qin 9'% ot� rTiaximum dry ...... d a r 25,800 sf density and 2% optimum rno!stu--_ content. Alk fill material to be S oadway 0 All idewalk 'Fences (9 Full + 6 Half Lots) ap, 25,800 sf . ......... i�, Milanagement' facilities. lser joints a -e �o be walertight within slormwater 2. Pipe arid r ocs, n Led raps or '17or temporary sediment t ns wh'c' are to be conver' ng construction of dams. Resid -oved by a geotechnical engineer, A geotechnicc! engineer is to be present duri, Lu perm --orrinwater management facili 'es; conversion is not Icke lace until the site is stabilized, and permission has been Ce Ilk �nspector. obtained from the County erosion, con trol ,o anent s i . ...... .. . ..... 0 U pervious Area 394 �f s YT�?stra 'a y. w Iw 225,785 sf ProlDosed I mr)ervious reas ca Uj Z) ........... 7 _j 0 < Uj IN N T A 4 V _j lx 41il k Pl?, L 1 -year C N Area, ac. Flow, 2 -yea r Flow, CN 1 -yea r Area, ac. Flow, 2 -year CNI 1 -year 2 -year Area, ac. cfs cfs cfs Flow, cfsA r Yr,� -% Flow cfs Flow cfs X7)�Z_Lxnn0l DAW 58.4 25.85 9.46 11.68 68.5 22.80 2.12 3.20 C 68.5 22.80 2.14 DAV 73.9 5.97 10.38 11.55 1 82.0 15.94 3.72 3.90 1 1-8W 15.94 3.72 3.90 IN N T A 4 V _j lx 41il k Pl?, L