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HomeMy WebLinkAboutSDP201700032 Plan - Submittal (First) Initial Site Plan 2017-05-22ROADS EXISTING CULVERT -••• EARTH DITCH CULVERT DRIVEWAY CULVERT A DROP INLET & STRUCTURE NO. BENCH MARK CURB - - - - - CLEARING LIMITS CURB & GUTTER PROPOSED PAVEMENT VDOT STANDARD STOP SIGN EXISTING CONTOUR PROPOSED PERM PAVERS 200 PROPOSED CONTOUR EC -3A DITCH 240.55 PROPOSED SPOT ELEVA77ON 6'° DEPTH OF EC -3A DITCI �- GENERAL NOTES: 1. IMPERVIOUS AREA: ROADWAY= 28,567 (APPROVED) 7,670 (TOWNHOMES) = 35,237 SF (o.81 AC) SIDEWALK/DRIVEWAYS= 28,o18 (APPROVED) +4,450 (TOWNHOMES) = 32,468 SF (0.75 AC) BUILDINGS= 59,146 (APPROVED) 8,778 (TOWNHOMES) = 67,924 SF (1.56 AC) 2. ITE TRIP GENERATION: TRAFFIC IMPACT NUMBERS ARE BASED ON THE ITE TRIP GENERATION MANUAL, 8TH EDITION. PHASE I: CODES 210 WERE USED FOR THEiDEVELOPMENT PROPOSED 16 DWELLING UNITS ADT RATE - 9.57 VPD PER D I U =153 ADT (77 ENTER/76 EXIT) AM PEAK RATE - 0.75 VPH PER DU = 12 VPH (3 ENTER/9 EXIT) PM PEAK RATE - 1.o1 VPH PER DU = 16 VPH (10 ENTER/6 EXIT) CODES 230 WERE USED FOR THE DEVELOPMENT PROPOSED 15 DWELLING KNITS ADT RATE - 5.86 VPD PER DU = 88 ADT (44 ENTER/44 EXIT) AM PEAK RATE - 0.44 VPH PER DU = 7 VPH (1 ENTER/6 EXIT) PM PEAK RATE - 0.52 VPH PER DU = 8 VPH (5 ENTER/3 EXIT) PHASE II: CODES 230 WERE USED FOR THE DEVELOPMENT PROPOSED 11 TOWNHOUSE UNITS ADT RATE - 5.86 VPD PER DU = 64 ADT (32 ENTER/32 EXIT) AM PEAK RATE - 0.44 VPH PER DU = 5 VPH (1 ENTER/4 EXIT) PM PEAK RATE - o.52 VPH PER DU = 6 VPH (4 ENTER/2 EXIT) 3. THIS SITE CONTAINS BOTH MANAGED AND PRESERVED SLOPES AS SHOWN ON THIS PLAN. 4. ALL TRASH SHALL BE COLLETED BY A DRIVING DUMPSTER SERVICE -EACH LOT SHALL HAVE AN INDIVIDUAL TRASH CONTAINER. S. NO ON STREET LIGHTING IS PROPOSED WITH THIS PLAN. 6. THIS PROPERTY IS NOT LOCATED WITHIN ADAM INUNDATION ZONE. GENERAL NOTES OWNER/APPLICANT 06100 -OO -00-16500 DUNLORA I INVESTMENTS, LLC 455 SECOND ST SE, SUITE 400 CHARLOTT,ESVILLE, VA 22902 ENGINEER: COLLINS ENGINEERING 200 GARRETT ST, SUITE K CHARLOTTESVILLE, VA 22902 (434)293 3719 TAX MAP NO.: 06100-0q-00-16500 (DB 4657 PG 413) TOTAL PROJECT AREA: 8.55 A(7ES TOTAL PHASE i 7.45 AC PHASE H = 1.10 AC ZONING: R-4 RESIDEN TIAL (B Y -RIGH T) - NO PROFFERS PROPOSED USE. PHASE l I PREVIOUSLY APPROVED WITH 15 SINGLE FAMILY ATTACHED UNITS AND 14 SINGLE FAMILY DETACHED UNITS PHASE 11 - 11 TOWNHOUSES REQUIRED DENSITY 4 DWELLING UNITS PER ACRE PROPOSED DENSITY- PHASE 1 - 29 UNITS PHASE H - 11 UNITS TOTAL - 40 DU/8.55 AC = 4.67 UNITS/AC BONUS DENSITY AFFORDABLE HOUSING (6) TOWNHOUSE UNITS HAVE BEEN PROPOSED AS AFFORDABLE DWELLING UNITS ALLOWING FOR AN ADDITIONAL (5) MARKET RATE UNITS TO BE CONSTRUCTED. *SIGNIFIES THE PROPOSED AFFORDABLE UNITS OPEN SPA CE, REQ: 2.14 AC OF DEVELOPMENT AREA (259); PROV OPEN SPACE A (2.09 AC) + OPEN SPACE B (0.09 AC) = 2.18 AC (269) THE OPEN SPACE WILL BE DEDICATED TO THE HOA. BUILDING HEIGHTS: MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 35' SETBACKS. • FRONT MIN AND 25' MAX SIDE. • 10''I BUILDING SEPARATION REAR: 20 MIN AND NO MAX SUBDIVISION STREETS: PHASE I I,- CURB & GUTTER (PARKING ON ONE SIDE ONLY) PHASE Ill - UNITS FRONTING ON RIO ROAD WITH ALLEY ACCESS FOR PARKING WATERSHED: THIS PA 'CEL IS NOT IN A WATER SUPPLY PROTECTED AREA - SI SITE DRAINS TO MEADOW CREEK. AGRICULTURAL/ FORESTAL DISTRICT.• NONE TOPO & SUR VEY• TOPOGRAPHY AND BOUNDARY INFORMA TION PROVIDED WITH ON-GROgND SURVEY BY CARDINAL SURVEY IN SEPTEMBER 2016. NOTE. TOPOGRAPHY HAS BEEN UPDATED FOR PHASE I LAND DIS TURBz NCE. DA TUM: NAD 83 EXISTING VEGETATION: PARTIALLY WOODED WITH EXISTING RESIDENCE STRUCTURES LIGHTING: NO LIGHTING IS PROPOSED PHASING: THIS PLAN IS PHASE 1/ OF DUNLORA PARK RECREATION: NOT APPLICABLE/NOT REQUIRED TOTAL NUMBER OF ATTACHED UNITS = 26 (3O UNIT!5 OR MORE REQUIRES A RECREATION AREA) PARKING: PHASE &1 2 OFF-STREET PARKING SPACES SHALL BE PROVIDED FOR EACH DWELLING UNIT + 1 SPACE PER (4) UNITS FOR GUEST PARKING. TOTAL PARKING REQUIRED: 22 SPACES ON THE LOTS + (3) GUEST SPACES TOTAL PARKING PROVIDED: 22 SPACES ON THE LOTS + (6) GUEST SPACES BUILDING SI TES- PARCELS 1-40 MA Y NOT BE FURTHER DI VIDED. ONL Y (1) DWELLING UNIT PER LOT SHALL BE ALLOWED. BURIAL SITES. NONE STREAM BUFFERS/FLOODPLAIN: THERE IS A PORTION OF A WPO STREAM BUFFER LOCATED AT THE SOUTHEAST CORNER OF THE SITE. THERE IS NO 100 -YEAR FLOODPLAIN LIMITS ON THE SUBJECT PARCEL, PER FEMA MAP 51003CO229D; FEBRUARY 4, 2005. OFFSITE DISTURBANCE. • NO OFFSIDE DISTURBANCE IS PROPOSED WITH THIS PLAN, EXCEPT FOR THE TIE-IN CONNECTION TO THE SANITARY SEWER W17HIN Ei1STING U77LITY EASEMENT. LANDSCAPING: STREET TREES ARE PROPOSED ALONG THE NEIGHBORHOOD STREETS IN ACCORDANCE WITH ALBEMARLE COUNTY LANDSCAPING REQUIREMENTS. LAND AREAS, • OPEN SPA CE. 2.50 AC. (297.) LOTS 4.27 AC. (APPROVED) + 0.60 AC. (TOWNHOMES) = 4.87 AC. (569) ROW DEDICATION: 1.07 AC. (APPROVED) + 0.18 AC. (TOWNHOMES) = 1.25 AC. (159) TMP 06100-00-00-16000 COMMONWEALTH OF VA (VDOT) (D.B. 4622, PG. 523) �Cj G 4� %/ ," PHASE LINE . LOT 26 ; ✓ f z 42 / SFA 5 437 S F PROPOSED Sheet List Table Sheet Number Sheet Title 1 OVERALL LAYOUT & DEVELOPMENT PLAN 2 EXISTING APPROVED CONDITIONS 3 GRADING AND UTILITY PLAN 4 STORMWATER MANAGEMENT, NOTES, & DETAILS W me \, t^ Gj \ (FROM DUNLORA PARK ; ! I—, \ \ �L ,-.. � � . 1 / ,\ ROAD PLAN) - r , j� D U) < C 1 RIGHT-OF-WAY ESTABLISHED WITH 1 *�`p �'j j 72 . 1rel a, W LL DUNLORA PARK ROAD PLAN ; \ , �_. G3 \ / 7 , ;' LL �. LU rr 0 3?*�O _ f; ` D�cS \,\ ��� PROPOSED SEGMENTED /i �r (' 1' I- �i 1/ U / C \� RETAINING WALL i Q z ; Vr. 1, Dc� �Q (MAX HT. 4') I l� z r �� i' �' i 0IN b ROLL TOP CURB r l z i I..L Co ��� TMP 06100 00 00 165CO a m \\ , . , . .;.;� 1 LAWRENCE E. MARTIN, JR. l rt �,, ', C\i (D.B. 4552, PG. 15) ! l 1trl s LU \ 3' CONC. SIDEWALK Ld'1 0 � LU C j JOB NO. Q 111 !%!;,! GRAPHIC SCALE �1` i f; !(,r l;,3 _ 152115 20 0 10 20 40 80 1 f� I f 1it SCALE c >> �\ IN FEET f r ' � l !r` / it If �r�l '� SHEET NO. c \ �� ` 1 inch = 20 ft. / MATCH/ N -SE OI I Lot Area I Buildable Area Lot 30 _ � 4,797 sf � 1,652 sf Lot 31 1,897 sf 1,065 sf_ Lot 32 2,006 sf 1,183 sf Lot 33 1, 995 sf 1,176 sf Lot 34 _ 1,904 sf _1,081 sf Lot 35 2,348 sf �mn 1,145 sf Lot 36 2,389 sf 1,196 sf Lot 37 1, 954 sf 1,127 sf Lot 38 Lot 39 2,032 sf 1 199 sf _2,095 sf _. 1,252 sf Lot 40µe 2,711 sf 1,544 sf \, t^ Gj \ (FROM DUNLORA PARK ; ! I—, \ \ �L ,-.. � � . 1 / ,\ ROAD PLAN) - r , j� D U) < C 1 RIGHT-OF-WAY ESTABLISHED WITH 1 *�`p �'j j 72 . 1rel a, W LL DUNLORA PARK ROAD PLAN ; \ , �_. G3 \ / 7 , ;' LL �. LU rr 0 3?*�O _ f; ` D�cS \,\ ��� PROPOSED SEGMENTED /i �r (' 1' I- �i 1/ U / C \� RETAINING WALL i Q z ; Vr. 1, Dc� �Q (MAX HT. 4') I l� z r �� i' �' i 0IN b ROLL TOP CURB r l z i I..L Co ��� TMP 06100 00 00 165CO a m \\ , . , . .;.;� 1 LAWRENCE E. MARTIN, JR. l rt �,, ', C\i (D.B. 4552, PG. 15) ! l 1trl s LU \ 3' CONC. SIDEWALK Ld'1 0 � LU C j JOB NO. Q 111 !%!;,! GRAPHIC SCALE �1` i f; !(,r l;,3 _ 152115 20 0 10 20 40 80 1 f� I f 1it SCALE c >> �\ IN FEET f r ' � l !r` / it If �r�l '� SHEET NO. c \ �� ` 1 inch = 20 ft. / MATCH/ N -SE OI I Q G C C L C C C L C v - z Q v Q S C C C S U Z C C i C C L L C d C S GENERAL CONSTRUCTION NOTES FOR STREETS 1. CONSTRUCTION INSPECTION OF ALL PROPOSED ROADS WITHIN THE DEVELOPMENT WILL BE MADE BY THE COUNTY. THE CONTRACTOR MUST NOTIFY THE DEPARTMENT OF COMMUNITY DE ELOPMENT (296-5832) 48 HOURS IN ADVANCE OF THE START OF CONSTRUCTION. 2. UPON COMPLETION OF FINE GRADING AND PREPARATION OF THE ROADBED SUBGRADE, THE CONTRACT R SHALL HAVE CBR TESTS PERFORMED ON THE SUBGRADE SOIL. THREE (3) COPIES OF THE TEST RESUL IS SHALL BE SUBMI TIED TO THE COUNTY. IF A SUBGRADE SOIL� CBR OF 10 OR GREATER IS NOT OBTAINABLE, A REVISED PAVEMENT DESIGN SHALL BE MADE BY THE DESIGN ENGINEER AND SUBMITTED WITH THE TEST RESULTS FOR APPROVAL. J. SURFACE DRAINAGE AND PIPE DISCHARGE MUST BE RETAINED WITHIN THE PUBLIC RIGHT-OF-WAY OR WITHIN EASEMENTS PRIOR TO ACCEPTANCE BY THE COUNTY. ALL DRAINAGE OUTFALL EASEMENTS ARE TO BE EXTENDED TO A BOUNDARY LINE OR A NATURAL WA TERCOURSE. 4. GUARDRAIL LOCA TIONS ARE APPROX/MA TE EXACT LENGTH, LOCA TION AND APPROPRIA TE END TREA TMEN ITS WILL BE FIELD VERIFIED AT THE TIME OF CONSTRUCTION. ADDITIONAL GUARDRAIL MAY BE REQUIRED AT LOCATIONS NOT SHOWN WHEN, IN THE OPINION OF THE COUNTY ENGINEER, OR DESIGNEE, IT IS DEEMED NECESSARY. WHEN GUARDRAIL IS REQUIRED, IT SHALL BE INSTALLED FOUR (4) FEET OFFSET FROM THE EDGE OF PA VEMENT TO HE FACE OF GUARDRAIL, AND ROADWAY SHOULDER WIDTHS SHALL BE c INCREASED TO SEVEN (7) FEET. 5. WHERE URBAN FROSS SECTIONS ARE INSTALLED, ALL RESIDENTIAL DRI VEWA Y ENTRANCES SHALL CONFORM TO VDOT CG -9(A, B OR C). 6. WHERE RURAL CROSS SECTIONS ARE INSTALLED, ALL RESIDENTIAL DRI VEWA Y ENTRANCES SHALL CONFORM TO VDOT STANDARD PE -1. 7. COMPLIANCE WITH THE MINIMUM PAVEMENT WIDTH, SHOULDER WIDTH AND DITCH SECTIONS, ASrOWN ON THE TYPICAL PAVEMENT SECTION DETAIL, SHALL BE STRICTLY ADHERED TO. 8. ROAD PLAN APPROVAL FOR SUBDIVISIONS IS SUBJECT TO FINAL SUBDIVISION PLAT VALIDATION. SHOULD THE FINAL PLAT FOR THIS PROJECT EXPIRE PRIOR TO SIGNING AND RECORDATION, THEN APPROVAL OF THESE PLANS SHALL BE NULL AND VOID. 9. ALL SIGNS OR OTHER REGULATORY DEVICES SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES AND THE ALBEMARLE COUNTY ROAD NAMING AND PROPERTY NUMBERING ORDINANCE AND MANUAL. 10. TRAFFIC CONTROL OR OTHER REGULATORY SIGNS OR BARRICADES SHALL BE INSTALLED IN THE OPINION OF THE COUNTY ENGINEER OR DESIGNEE, BY THE DEVELOPER WHEN N GHEE NECESSARY IN ORDER TO PROVIDE SAFE AND CONVENIENT THEY ARE DEEMED NECES ACCESS 11 • THE SPEED LIMITS TO BE POSTED ON SPEED LIMIT SIGNS ARE 5 MPH BELOW THE DESIGN SPEED, OR AS DETERMINED BY VDOT FOR PUBLIC ROADS. CD- 0 CD -2 CROSS -DRAINS UNDER TO BE INSTALLED UNDER 12. VDOT STANDAR 1 R R THE SUBBASE MATERIAL AT ALL CUT AND FILL TRANSITIONS AND GRADE SAG POINTS AS SHOWN ON THEI ROAD PROFILES INSPECTION IS REQUIRED FOR ALL STORM SEWERS AND CULVERTS 13. A VIDEO CAMERA l ARTS Q THAT ARE DEEMED INACCESSIBLE TO AD0T OR COUNTY INSPECTIONS. THE VIDEO INSPECTION SHALL BE CONDUCTED IN ACCORDANCE WITH VDOT's VIDEO CAMERA INSPECTION PROCEDURE AND WITH A VDOT OR COUNTY INSPECTOR PRESENT ALBElit ARLE COUNTY GENERAL CONSTRUCTION NOTES 1. PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RIGHT-OF-WAY, INCLUDING CONNECTION TO ANY EXISTING ROAD, A PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION (VDOT). THIS PLAN AS DRAWN MAY NOT ACCURATELY REFLECT THE REQUIREMENTS OF THE PERMIT. WHERE ANY DISCREPANCIES OCCUR THE REQUIREMENTS OF THE PERMIT SHALL GOVERN. 2. ALL MATERIALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPECIFICATIONS AND STANDARDS OF VDOT UNLESS OTHERWISE NOTED. 3. EROSION AND SIL TA TION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED EROSION CONTROL PLAN AND SHALL BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR OTHER CONSTRUCTION. 4. ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED, AND MULCHED. 5. THE MAXIMUM ALLOWABLE SLOPE IS 2:1 (HORIZONTAL: VERTICAL). WHERE REASONABLY OBTAINABLE, LESST SLOPES OF 3•• 1 OR BETTER ARE TO BE ACHIEVED. 6. PA VED, RIP -RAP OR STABILIZA TION MA T LINED DITCH MA Y BE REQUIRED WHEN IN THE OPINION OF THE COUNTY ENGINEER, OR DESIGNEE, IT 1S DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL. 7. ALL TRAFFIC CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES. 8. UNLESS OTHERWISE? NOTED, ALL CONCRETE PIPE SHALL BE REINFORCED CONCRETE PIPE -CLASS Ill. 9. ALL EXCA VA TION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 CFR PART 1926). I MOTES 1 THS §Ts.V Mr`.'1 d_ PRECAST OR CAST; IN PLACE 7 CONGI{ IE I'3 aL UL ASS �'..i Ir CA '.N FLfiGk, .{7ut� s'RE nil 31 CURE .APING A RTDPJS OS 3GO r ET OR LEI'' 11LON( rAC,'OF (J; 3' Y; -L OF PAP E 1111R /,Is aAD'if, iIFF I 4_ At+[ F'T:l n -41 Lt Y�1 9E CELLYED AS !ALGA;. ACCEPTABLE AL IF CURB IS EX REEE E.lr:r-_.. ,R��,{ry pp� �*@F V ' ST1•U YLJ AS�EJ C.i ksUriO H(riL '.A,tin E•i0 51Fs'dOAagS P L'S.uN. 1-T SHEET O: SUS �,1lRn!N'jA fs.'.Y, 2�Ot::h� f7" ".1tz,C`,'sP.^.k YhT1nN Face lo? Curb 1 -bin ...-R1ft3in j - !overt Line 2inJ 18in - Solis D Soils Tota lS % of Total Forest/open (acres) 0.00 1.09 ,� /I R, RB in 12 1.09 13 Managed Turf (acres) T , 4.37 0.00 p'! �' 437 51 - L ,. -1 I 1. " _-1 _ k - M1 y i 3.it , - - BuRder 0piion Acea be s '�Button] of cyfb ,,, may concrete.'/ may follow slope of 1 8.62 sub -base provided h-'� a minln:um dept` ,- P---1 of 7 inclies is maintained, N I ft in 2ft0in Rolitop Curb ROAD NOTES GRADING 1. THE LATEST EDITION OF THE ROAD & BRIDGE SPECIFICATIONS, THE ROAD & BRIDGE STANDARDS OF THE VIRGINIA DEPARTMENT OF TRANSPORTATION SPECIFICATIONS SHALL GOVERN THE MATERIAL AND CONSTRUCTION METHODS OF THIS PROJECT. 2. WHERE UNSUITABLE MATERIAL IS ENCOUNTERED IN THE ROADWAY, IT SHALL BE REMOVED FROM THE ENTIRE ROAD RIGHT OF WAY WIDTH AND REPLACED WHERE NECESSARY WITH SUITABLE MATERIAL TO THE SATISFACTION OF THE ENGINEER. J. ALL GROWTH OF TREES AND VEGETATION SHALL BE CLEARED AND GRUBBED FOR THE ENTIRE EASEMENT. OTHER TREES AND VEGETATION WHICH OBSTRUCT SIGHT DISTANCES AT ROAD INTERSECTIONS SHALL BE REMOVED. 4. ALL VEGETATION AND OVERBURDEN TO BE REMOVED FROM SHOULDER TO SHOULDER PRIOR TO THE CONSTRUCTION OF THE SUBGRADE. DRAINAGE 1. ALL PIPE CULVERTS, EXCEPT PRIVATE ENTRANCES, SHOWN HEREON ARE TO BE RCP WITH A MINIMUM COVER OF ONE (1) FOOT. 2. STANDARD UNDERDRA/NS (CD -1 OR CD -2 OR UD -4'S) TO BE PROVIDED AS INDICATED ON THE PLANS, OR WHERE FIELD CONDITIONS INDICATE J. ALL DRIVEWAY ENTRANCE PIPES SHALL BE A MINIMUM OF TWENTY (20) FEET IN LENGTH AND HAVE A MINIMUM DIAMETER OF FIFTEEN (15) INCHES AND SHALL BE PLACED IN ACCORDANCE WITH THE VIRGINIA DEPARTMENT OF TRANSPORTAION SPECIFICATIONS UNLESS OTHERWISE NOTED ON PLANS. 4. ALL DRAINAGE EASEMENT SHALL BE CLEARED AND GRADED TO THE SATISFACTION OF THE ENGINEER. DRAINAGE EASEMENTS SHALL EXTEND TO A POINT DEEMED AS NATURAL WATER COURSE PA VEMEN T 1. AN ACTUAL COPY OF THE CBR REPORTS l TO BE SUBMITTED PRIOR TO THE PLACEMENT OF THE AGGREGATE RE ATE BASE MATERIAL. IF THE SSV VALUES ARE LESS THAN 10, THE DEVELOPER WILL BE REQUIRED TO SUBMIT FOR ENGINEERS APPROVAL THE PROPOSED METHOD OF CORRECTION 2. SUBGRADE MUST BE APPROVED BY THE ENGINEER FOR GRADE, TEMPLATE AND COMPACTION BEFORE F RE BASE IS PLACED. 3. TEST REPORTS ON SELECT MATERIALS MUST BE SUBMITTED SHOWING THE MATERIAL MEETS REQUIRED GRADATION FOR TYPE l lI OR I/1 PR IOR TO PLACINGG AGGRE ATE BASE. 4. THE REQUIREMENTS TO PUGMILL AGGREGATE BASE WILL BE WAIVED IN THE EVENT THAT THE SURFACE COURSE IS BEGINNING AT THE COMPLETION OF THE INSTALLATION OF THE AGGREGATE BASE. IN THE EVENT THAT THE SURFACE COURSE OURSE IS APPLIEDlOR TO 6' PR 0 DAYS THE PUGMILL REQUIREMENT EMENT WILL APPLY 5. THE USE OF AN AGGREGATE SPREADER IS REQUIRED WHEN PLACING AGGREGATE BASE. 6. BASE MUST BE APPROVED BY ENGINEER FOR DEPTH, TEMPLATE, AND COMPACTION BEFORE SURFACE TREA TMENT IS APPLIED. 7. PRIME COAT MUST BE APPLIED TO BASE MATERIAL PRIOR TO PLACEMENT OF ASPHALT (PRIME COAT RC -250 © 0.3 GAL./SQ. YD.). 8. BITUMINOUS SURFACE TO BE APPLIED IN ACCORDANCE WITH CURRENT VIRGINIA DEPARTMENT OF TRANSPORTATION SPECIFICATIONS. 9. ENCROACHMENT- POSTS, WALLS, SIGNS, OR SIMILAR ORNAMENTAL STRUCTURES THAT DO NOT ENHANCE A ROADWAY'S CAPACITY OR TRAFFIC SAFETY, SHALL NOT BE PERMITTED WITHIN THE RIGHT OF WAY. ONLY THOSE STRUCTURES SPECIFICALLY AUTHORIZED BY PERMIT ISSUED BY VIRGINIA DEPARTMENT OF TRANSPOR TA TION MAY BE L OCA TED WITHIN THE STREETS RIGHT OF WAY. NOTE: MANDATORY INSPECTIONS AT THE FOLLOWING PHASES ARE REQUIRED FOR ROADS THAT ARE PROPOSED TO BE STATE MAINTAINED: INSTALLATION OF ANY ENCLOSED DRAINAGE SYSTEM BEFORE IT IS COVERED ii. INSTALLATION OF ANY ENCLOSED UTILITY PLACEMENTS WITHIN THE RIGHT-OF-WAY BEFORE BEING COVERED. iii. CONSTRUCTION OF THE CUTS AND FILLS, INCLUDING FIELD DENSITY TESTS, BEFORE PLACEMENT OF ROADBED BASE MATERIALS. iv. A FINAL PAVEMENT DESIGN, BASED ON ACTUAL SOIL CHARACTERISTICS AND CERTIFIED TESTS, SHALL BE COMPLETED AND APPROVED BEFORE THE PAVEMENT STRUCTURE IS PLACED. v. PLACEMENT OF BASE MATERIALS, INCLUDING STONE DEPTHS, CONSISTENT WITH THE APPROVED PAVEMENT DESIGN, PRIOR TO PLACEMENT OF THE PAVING COURSE OR COURSES, FOLLOWED BY FIELD DENSITY AND MOISTURE TESTS AND THE PLACEMENT OF A PAVING COURSE AS SOON AS POSSIBLE. vi. CONSTRUCTION OF PAVEMENT, INCLUDING DEPTH AND DENSITY, UPON COMPLETION AS PART OF THE FINAL INSPECTION. vii. THE CONTRACTOR IS RESPONSIBLE FOR CONTACTING VDOT A MINIMUM OF ONE WEEK PRIOR TO EACH OF THE ABOVE PHASES OF CONSTRUCTION TO SCHEDULE AN INSPECTION. viii. FAILURE OF THE CONTRACTOR TO SCHEDULE THESE INSPECTIONS WILL REQUIRE ADDITIONAL TESTING OF THE ROADS AT THE DISCRETION OF VDOT OR MAY LEAD TO THE ROADS NOT BEING ELIGIBLE FOR STATE MAINTENANCE. RIW CG -2 CURB 2-:1-3:1 42IAoar sroNE BASE CIL R1W ROLL TOP POINT OF CURB FINISHED GRADE pX 1.5" SURFACE COAT 2:1 M TO BE APPLIED 2q 2% 3' 1 BASE SUBBASE WALLS H I ( 14' 0.5) (TRAVEL LANE) j 17.5' BIC -81C -- VA R, /C-B/CVAR. WIDTH PRIVATE ACCESS EASEMENT (5' A4/N.) 4" CONC. /�/\//\/\ /\/\/\/\/ \\/\\\//✓/,\//,\! - 4" 21-A STONE BASE CONCRETE SIDEWALK NO SCALE (TZAR IYIDTII PRIV,4TE ACCESS EASEff,EIVT) SM -9.5A Illllillllllllllllllllllllllllllllllllllll INTERMEDIATE COURSEBM-25 0''1''!'!11'1!11! 1, BASE COURSE, VDOT #21 1,00 . , i§'..,, .;f K-0 A" j OR #21B DEPENDING ON MR F-10AT-0900 R4 ULTIMATE TRAFFIC L Im- A.,.. 1_ COMPACTED � a , ASPHALT ! ROADS NO SCALE STORMWATER MANAGEMENT PLAN & TRIP GENERATION 1"=6r3' . 1 'zi'(_�i') --- --- , ,- 1-1 - _­,' __ l / _ - _. - _il - , . -.` , ;. \ - KC. 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' "'`. .•, �\ -:` ., : ,' ' � ,+,. "M., ,.,fc: .Ery Y.... J' � b"F �yu..e,m _ r , r _ / ', r ./ _ F - - '- i v -l. C r t�'-' 5 r �, ''� � ` i r l r;r t r k 1 I;1 L, illi /1", ri 1 I .. r �,J . /' ,1 t /; %: A i' :. /� y! / +A - r, t f „t/ r.:' I �.r - ti. y / \;\. / I r ;\ .\ t"a�(f I .frig /. .: , *, `y? ° _,� . \, /< \. i x. 0 k- i'; f J �. ;. 9 \, _ ,../ .,' r t .r I' \ ,, C. - y ,',''1,\, -"1� "I . ',' , , �" /" / ,e' � I / 3a r , �11 .. / .. \ / \. ./ �, Irl rj,, \ / ',�''>, .'/ // , ,fes . i :/ "'.W 'rt ` '\4 zx � I _ ` '- f i - - „r`. ,j, ::'' /,'' / /r/% r,r f r w / 1 _ - r`_. ff r a "_ r� \ r, r. f f l �''r /r ,o M1 THIS PROJECT HAS BEEN ANALYZED AS A PART OF THE APPROVED DUNLORA PARK DEVELOPMENT PARCEL CURRENTLY UNDER CONSTRUCTION. THE PROPOSED 11 TOWNHOME DEVELOPMENT REQUIRES AN ADDITIONAL PHOSPHOROUS REDUCTION OF 0.3o LB/YR. THE PROPOSED PROJECT WILL PURCHASE CREDITS TO MEET ANY ADDITIONAL WATER QUALITY REQUIREMENT NOT MET BY THE PHASE I BIOFILTER AND THE OPEN SPACE PRESERVATION. Approved Onsite Impervious Areas (Water Quality) Roadway 29,600 sf Sidewalks & Driveways 22,110 sf Buildings 64,700 sf Total = 116,410 sf Proposed Plan Onsite Impervious Areas (Water Quality) Roadway 8,600 sf Sidewalks & Driveways 4,013 sf Buildings 8,778 sf Total= 21,391 sf Total Parcel Onsite Impervious Areas (Water Quality) Total= 137,801 sf TRIP GENERATION CALCULATIONS 3 TRIP GENERATION BASED ON ITE TRIP GENERATION MANUAL (8TH EDITION) 11 TOWNHOUSE UNITS (CODE 230) ADT: 64 VPD (32 ENTER/ 32 EXIT) AM PEAK: , VPH (1 ENTER/ 4 EXIT) PM PEAK: 6 VPH (4 ENTER/ 2 EXIT) Drainage Area B Draina¢e Area A Lana[ Cover (acres) ___- -_ Jam, . _- 1 ;;; ,' _�._ - �,, _- ..-_. 111 Z*'` it �, t ,: �, ) - ! 7 I > ( r .r',' t'' �,- ` ' r r i w r r , 1, i- r l ' J , ii�, I/' ! 1 fr r 'r i; rl! f �; i_ 1t: ry r,; ., \ z' DEQ Virginia Runoff Reduction Method New Development Compliance Spreadsheet - Version 3.0 SM? Design Specifications List: 2011 Stds & Specs Site Summary Total Ra€nfall= 43 inches Site Land Cover Summary Up, date SUM Mclry.5fleef j . ._ .____:. ...i Print t rp,r; 1 , Print ____._____j _ ......::.......:I Site Tv and Land Cover Nutrient Loads Site Rv A 541IS B Soils Solis D Soils Tota lS % of Total Forest/open (acres) 0.00 1.09 0.00 0.00 1.09 13 Managed Turf (acres) 0.00 -- - 4.37 0.00 0.00 437 51 impervious Cover (acres) 0-00 3.16 0,00 0.00 3.it 37 8.62 100 Site Tv and Land Cover Nutrient Loads Site Rv 0_45 Treatment Volume ft3I 14,189 TP Load (Ib/yr) 8.91 TN Load (lb/yr) 63.77 �Total TP Load Reduction Required 5.18 Vblvrl Site Compliance Summary Total Runoff Volume Reduction (ft) 7,189 Total TP Load Reduction Achieved Totals (lb/yr) 5.08 Total TN Load Reduction Achieved (lb/yr) 37.12 Remaining Post Development TP Load 0:32 (Ib/yr) 3.84 Remaining TP Load Reduction (lb/yr) Impervrow Cower (ac Yom] Required 0.30 -otal Phosphorus Available for Removal in D.A. B (lb/yr) 1 ,6i i Ir Post Development Treatment Volume in D.A.B (ft;)1M O� l� o scazT R. coLLi�rs� U Lic. No. 035791,1 SIONAL 0�/O) Z O J n~. < V) ,L r_ ce Lf) tn U.i =) z Q (n Z H N ~ > z h- LLa M Uj Ce r® I-ia r1j 0 LO A$Oii5 $$QPIS ' x$0815 I L)Soils Totals land Cover Rv rarest/Open Space (a ores) '', 0 06 klaragNd TU.`f (acres) 0:32 - Ci.�31 Nil N 0 26 iiiiiiii Impervrow Cower (ac Yom] 07,49 11:L 6.,49 '', [}95 Total [f'30 -otal Phosphorus Available for Removal in D.A. B (lb/yr) 1 ,6i i Ir Post Development Treatment Volume in D.A.B (ft;)1M O� l� o scazT R. coLLi�rs� U Lic. No. 035791,1 SIONAL 0�/O) Z O J n~. < V) ,L r_ ce Lf) tn U.i =) z Q (n Z H N ~ > z h- LLa M Uj Ce r® I-ia r1j 0 LO z L9 11:L r CY? LLi 0') P---1 mt V) in ina 0 1i< a Y . 9 F---1 /ice '_ (z) ) ') 0'W �- �- C' C\j 1--4 LLJ O C\j z 0� Q) W 06 N > i U C` Uj 1 ! U L O o - LL fn L.. L C � L {j-�j \/ 0 L U f LJ J 77 u U 0 � L '_-c tD LL 0 3: z LLJ O C °+ -1 c 3 0 z rr O C C c -) = 0 �. 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