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HomeMy WebLinkAboutSDP201400012 Plan - Approved 2014-07-18SITE DATA Pre - Development SITE PLAN NUMBER: SDP - 2013 -053 LEGAL REFERENCE: TM 46 PARCEL 18C SOURCE OF TITLE: DB 624 PAGE 193 OWNER: CROCKETT CORPORATION Paved 435 PARK STREET 0.1% CHARLOTTESVILLE, VA 22901 APPLICANT: MONTICELLO UNITED SOCCER CLUB 3,457,641 P. 0. BOX 7214 3,412,111 CHARLOTTESVILLE, VA 22906 Total ATTN: PAT REILLY ZONING: RA - RURAL AREAS SPECIAL USE PERMIT: SP201000036 1 8.97' MAGISTERIAL DISTRICT: RIVANNA 3 °38'40" BUILDING SETBACK: FRONT - 75' 1 13.47' SIDE - 25' S02043'102 "E REAR - 35' SOURCE OF BOUNDARY: ALBEMARLE COUNTY GIS MAPS. THERE ARE NO RECORDED PLATS FOR THIS PROPERTY. SOURCE OF TOPOGRAPHY: ALBEMARLE COUNTY GIS MAPS - USGS DATUM: 4 -FOOT CONTOURS �p FIELD RUN SURVEY BY MERIDIAN PLANNING GROUP, LLC. ON OCTOBER 30, 2013: 2 -FOOT AND 1 -FOOT CONTOURS. PAVING SPECIFICATIONS: PARKING: 6" VDOT 21A — o ENTRANCE: 6" VDOT 12A, 2" SM -9.5 PROPOSED USE: SOCCER FIELDS PARKING SCHEDULE: oz REQUIRED: 24 SPACES PER SOCCER FIELD m TOTAL NUMBER OF SOCCER FIELDS = 4 m PARKING SPACES = 24 *4 = 96 SPACES PROPOSED: 96 SPACES (INCLUDES 4 HANDICAP ACCESSIBLE SPACES) LOADING SPACES REQUIRED: 0 LOADING SPACES PROVIDED: 0 WATER AND SEWER: SITE WILL NOT HAVE WATER SUPPLY. PORTABLE TOILETS WILL BE LOCATED ON SITE SWM VOLUME CONTROL: SITE MEETS THE MS -19 1% RULE, THEREFOR, VOLUME CONTROL IS NOT REQUIRED. SWM WATER QUALITY: BIO- FILTER. C) PUBLIC WATER SUPPLY: THIS PARCEL IS NOT LOCATED WITHIN A PUBLIC WATER SUPPLY RESERVOIR WATERSHED. Q f— 1 and Use Table Description Pre - Development % Post- Development % Buildings 0 0.0% 0 0.0% Paved 4,943 0.1% 50,473 1.5% Pervious 3,457,641 99.9% 3,412,111 98.5% Total 3,462,584 100.0% 31462,584 100.0% LINE TABLE FOR CENTERLINE ACCESS ROAD LINE BEARING DISTANCE Ll N13 052'08 "E 14.06' L2 N29 047'13 "W 81.54' L3 S07 003'06 "E 32.13' L4 N01 030'02 "W 38.64" L5 N05 °08'42 "W 40.79" L6 N00 017'22 "W 47.52" CURVE TABLE FOR CENTERLINE ACCESS ROAD CURVE RADIUS ARC LENGTH CHORD LENGTH CHORD BEARING DELTA ANGLE C1 110.00' 83.81' 81.80' S07 057',32 "E 43 039'22" C2 559.00' 220.83' 219.40' N18 °22'108 "W 22 038'04" C3 159.00' 15.40' 15.40' S04016'34 "E 5 033'04" C4 141.00' 1 8.97' 8.97' S03 019'22 "E 3 °38'40" C5 159.00' 1 13.47' 13.47 S02043'102 "E 4 051'20" SIGNATURE PANEL APPROVALS DATE DEPARTMENT OF COMMUNITY DEVELOPMENT COVERSHEET PLANNER /ZONING EXISTING CONDITIONS /I fit 14 e ENGINEER !Ve C -201 ........ INSPECTIONS -� ARB • DEPARTMENT OF FIRE RESCU C -302 ........ 9— VIRGINIA DEPARTMENT OF TRANSPORTATION'S l HEALTH DEPARTMENT �1�:: vi L < < nu 5 S D 2 0 1 '_D FtNAL StTE lP L A N . L ID LAN E'P\'OStON & SEDtMENT CONT"u -F SWM 'ID-LAN & MtTt PLA-\, FOR A _QL K MONU 16 'T'AX MAIP 40", }' Alb C "LL 10" C R[5 %ANNA DISTR-'tCT. ALIDDEMAR"LE COUNTY, VtR'GtNtA - Ap ate mits '�a.:.: c� 0 100 —Year FI 'tc�,. i; TMP 46 -18C r CiROCKETT CORPORATION 79.495 Acres DB 624 -193 ZONED: RA USE: VACANT riticol Slopes lf. N 1 / v' I o c\, tot / t tiro } i Field 2 230'x394' a[ Field 4 VICINITY MAP c-oO SCALE: 1"= 2000' SHEET INDEX C -001 ......... COVERSHEET C -101 ......... EXISTING CONDITIONS C -102 ........ EXISTING CONDITIONS C -201 ........ SITE PLAN C -202 ........ SITE PLAN • SITE DETAILS C -302 ........ SWM PLAN & MITIGATION PLAN C -401 ........ i' C -402 ........ EROSION PLAN C -403 ........ EROSION DETAILS o z o � � i Soccer Field -,,- d �S = 230'x394' �p 0 o - — o (0 Q a' F t— , I � oz Q Q m m m m r U w w J � � W F— C) Q f— riticol Slopes lf. N 1 / v' I o c\, tot / t tiro } i Field 2 230'x394' a[ Field 4 VICINITY MAP c-oO SCALE: 1"= 2000' SHEET INDEX C -001 ......... COVERSHEET C -101 ......... EXISTING CONDITIONS C -102 ........ EXISTING CONDITIONS C -201 ........ SITE PLAN C -202 ........ SITE PLAN C -301 ........ SITE DETAILS C -302 ........ SWM PLAN & MITIGATION PLAN C -401 ........ EROSION PLAN C -402 ........ EROSION PLAN C -403 ........ EROSION DETAILS LEGEND PP POWER POLE SCC STORMWATER CONVEYANCE CHANNEL �I W va�� > �D �,vF�a UXz THTE� V W � � ' LO CD 0 , E o z I W 00 QR � o z o � � i Q d O = W 0 o - — o (0 Q a' F t— , I � oz Q Q m m m m r U w w J � � W F— C) Q f— o w p U �I W va�� > �D �,vF�a UXz THTE� V W - r Refer to Sheet C -302 "' 1itigotion�.Area . 2.2 Acres ...::::: Ec: :.. .::....::::::::::::::::::: °` 6u�d�n 9 S�t6QCk 7•. w. SOUTH FORK RIVANNA RIVER r�N✓t ail 200 0 200' 400' 600' SCALE: 1 " =200' � � ' 0 I � J � W i Q W 0 0 , I � 0 r l h r - r Refer to Sheet C -302 "' 1itigotion�.Area . 2.2 Acres ...::::: Ec: :.. .::....::::::::::::::::::: °` 6u�d�n 9 S�t6QCk 7•. w. SOUTH FORK RIVANNA RIVER r�N✓t ail 200 0 200' 400' 600' SCALE: 1 " =200' z _O I- D_ _ of V i– t— W W W o m m (D o z z 0 0 O Z � N � � 0 I � W � W Q W 0 0 � 0 z _O I- D_ _ of V i– t— W W W o m m (D o z z 0 0 O Z � N 0 � W � W W � 0 0 J � � W F— C) f— o w C SHEET NO. C-001 SHEET 1 of 10 MATCHLINE A. 13 A < < Q C14 0 0 N V) 0 0 0 M M M z Z Q M M cn LLJ Ld 0 < z (-D 0 Ld J. ' r. LLJ 0 -- ------ --- --- E, .. .... . ..... ..... C\2 > " 0 CO C) U 0 0 M CC) C) 0 U) cr) PE- 0 Q 0 ::3 UP4Z C) . . . . . ... QQ _Q .... .... - -- - - ------ --- 1140e ve Limits of rop 0 �WcPhic sl�r' v M ...... ...... LLJ J. CD Cj ----------- n CD c) a- Nk V) LIJ Ld Lij A 0 M M < C) C) M C) c; z j/ K < 0 0 'Y' I All IT F� '"Z j 7`1 SOP GFJ < 'v S40 LLJ Lj o- SHEET NO. Y_ "Y -7, —101 30' 30' 9V SCALE: 1 "=30' SHEET 2 of 10 I > le, ol MATCHLINE A. 13 A < < Q C14 0 0 N V) 0 0 0 M M M z Z Q M M cn LLJ Ld 0 < z (-D 0 Ld J. ' r. LLJ 0 -- ------ --- --- E, .. .... . ..... ..... C\2 > " 0 CO C) U 0 0 M CC) C) 0 U) cr) PE- 0 Q 0 ::3 UP4Z C) . . . . . ... QQ _Q .... .... - -- - - ------ --- 1140e ve Limits of rop 0 �WcPhic sl�r' v M ...... ...... LLJ J. CD Cj ----------- n CD c) a- Nk V) LIJ Ld Lij A 0 M M < C) C) M C) c; z j/ K < 0 0 'Y' I All IT F� '"Z j 7`1 SOP GFJ < 'v S40 LLJ Lj o- SHEET NO. Y_ "Y -7, —101 30' 30' 9V SCALE: 1 "=30' SHEET 2 of 10 MATCHLINE THIS SHEET SOTJT14 ZONE 30' 0 30' 60' 90' SCALE: 1 "=30' > 7 Gravel Ac s�- oad -41 iiii y � i � 1 r,� ZONE SOJJT14 ZONE A's.p. PT14 GPO No 30' 0 30' 60' 90' SCALE: 1 "=30' Y tt It - 1 1 cr 10 0 N z 3: It 7, Y tt It - 1 1 cr 10 0 N z 3: 0 E- C\2 �D Om O O 0 _,,.j 1 r�� A 7t V cr 10 0 N z 0 I-- n 6� 1 0 M m 0 0 0 C) U C-) Ims 7t V 0 N z 3: 0 E- C\2 �D Om CO C) -F (D 1 C\2 co co z < CD �aWCQ E- � &- "I' cq) w O (D cn < Of F- cr z P, 0 < m m m M Ld LLJ Z �;: 0 W 0 W 0 C::) CD < z Y UJ z 0 I-- n 6� 1 0 M m 0 0 0 C) U C-) Ims , V E- C\2 �D Om CO U) Q (D 1 C\2 co co z < CD �aWCQ E- � &- "I' cq) w co LL) z P, L.Lj Ld LLJ 0- Ict) C::) CD C-1 02 z 0 I-- n 6� 1 0 M m 0 0 0 C) U C-) Ims , V CO < CD LL) c/) L.Lj Ld LLJ 0- Ict) C::) CD C-1 02 z 0 I-- n 6� 1 0 M m 0 0 0 C) U C-) Ims SHEET 3 of 10 V sZ, LL) c/) L.Lj Ld LLJ 0- Ict) SHEET NO. C-1 02 SHEET 3 of 10 A 61 Lo CD < > > C) 0 C-4 0 0 D__ > 0 r 6i LIj 0 < < _j M M M r L M > 0 < z (D C) 0 0 LLJ Jr O LIJ C) O 4� Zr_ 0, --- - ------- (D CD /> (D . . .... .. ....... (D "s, Nei rb Lan nape Flood Zone AE T M er E, > U) c L) A C\2 U 1-4 CO CO z C) --- r� > CK) Q co CD Z6 �D 0 FT-1 0 14 < G-) 0 Z C: 0 U) 07 P, n CL ;U) CO ss :z y 0; � S _Q511 Pave Entrance Steel Gate te­- 4-Benchm' a Fk: Spike in ground Elev=361.21 - ------- ----- Critic I Slopes Limit' s of Top 0 p hic Su, rV y �Ve T Soccer Field 1 230'x394' ...... .......... . . .... ....... \- \> New Acces's Easement Ld --- r- 00 CD CI4 Q, 0 T C) C) C) 0 0 v) V) i LLJ LJ LJ M .. ... ..... C) C) --rj < U C.) d oo, C) 0 C-) CD )> M Gravel Ac Z (N </ /> Culvert K 36 -15" �.MF @ 0.9% z/ W"Inv=341.34 (D ....... .. ra Upper j =341.66 (D (D 0 31 )K_ 15 R New Access Easement CL CD 5 &JRFla g Pole CD 0 -Benchmark: Spike in ground 80 . 343 = Soccer Field 2 Elev < Y 230'x394' < ,, " ,l /4, z, _j F_ U) /> </ CD C) > LIJ .3 LLJ LLJ og� kf, ry CL JV) X. > 0 d p. so 9 " SHEET NO. o ` : `: f; f; ,`J`' >. "'`,�" Yr :'� f �;7 CD < C-201 0' 0 3 ..6 0 b 3 0,' 90' J%M WMM M M MATCHLINE B SCALE: 1 "=30' SHEET 4 of 10 MATCHLINE THIS SHEET ... H A EET . ..... LLJ Q x, k CD �_ Ilk " I> rK -0 J, 7k A C-5 N Y A Acce�, X� Gravel #no P jr J Culvert ZD 0- .. 36 P/� 0.9% 0 U1 0 1: )per 16=�41.66 --"Inv=341.34 0 0 75R New Access Easement 0 _j M M M A, M U) ED ED x Vl"_ &- - Flag Pole 5 R Benchmark: < Z Y o (_D 0 > Spike in ground Soccer Field 2 Elev=343.80 230'x394' p, f 1 > E, CQ CD � > 0 co 0 U q/ (D a) 00 I, '; K~ JA , .� ` �Jr�` `tf ..'y lr �`K ' ,` / t0,� U) > H CD P-4 E, U) co �D E, Hy Soccer Field 4 V cn x 0, UP4Z 230'x394' MATCHLINE B .01 C'3 dQ ­,4 V CD (D 2-1 4' 00 U) CD C)% <D > M 01 0 U) LTI (D A is � V V) 0 C) V CD (D U) U3 00 1 00 Olt I 0.0 5.7 0.0 0.1, 0. CD 60- Q) New Wood Tire Stop� 01 it (Typ) Lij 00 U) CD n Ln C) 0 SOIS New Gravel V S.P sogT14 Parking i Z: GP, New 8 R q Port—o—John 0) 341.7 b/ 30' 0 30' 60' 9 Uj W 38'R C�i E Q C:) SCALE: 1 " =30' EC -1 New Rip—Rap Forebay Berm `.K; /> 2' Wide, 1' Tall C) CD New Clean—Out . . . . . . New Bio—filter Provided every 50' Elev=341.0 cl� ARip —rap Wier Soccer Field 3 230'x394' /Q �4 A Cf) C Cf) LIJ Q, > LLJ Ld Ld soli Ttl 0- to SHEET NO. VA GRID �OP'Tli L, b C-202 30' 0 30' 60' go,/ SCALE: 1 "=30' MATCHLINE THIS SHEET SHEET 5 of 10 i, 3 394' Soccer Field 2 230'x394' ui \\ � � 1 t,. Bio - filter. Drainage Area {. Area = 1.6 Acres j Paved area = 35,490 SF 1 �I Filter Area Required: 35,490 *0.05 =1,775 SF 1 Filter Area Provided: 31' *58' =1,798 SF i C =0.6 Tc =5 Minutes } (� 12 =5.2 in /hr 1 Q2 =5.0 cfs it \ o ` i 1 ❑ 1 I , l i New Clean -Out I New Bio -fdter Provided every 50' r r { Elev -341.0 L - - . L �342b1 /, Rip -rap Wier C" f ` 34266 134GS1 (t4l.4e SCC DRAINAGE AREAS -30 SCALE: 1" = 50' 'gib i f 50' 0 50' 100' 150' 2 BIO- FILTER DRAINAGE AREA 50' 0 50' 100' 150' -30 SCALE: 1" = 50' SCALE: 1 " =50' SCALE: 1 "=50' STORMWATER CONVEYANCE CHANNEL DETAILS SCALE: NTS NOTES: 1. The area of stream buffer to be disturbed by this project is 48,050 SF. 2. The mitigation area required = 2 * 1.1 Acres = 2.2 Acres. 3. The mitigation area provided = 2.2 Acres. 4. New Plantings will comply with Option 1.b: For every acre or fraction thereof, plant 1,210 hardwood and /or pine seedlings on approximately 6'x6' centers without tree tubes and mats. 5. Seedlings required = 1,210 * 2.2 = 2,662 seedlings. 6. Seedlings shall consists of the following trees: Yellow Birch....... 600 White Ash ........ 600 Willow Oak ....... 600 Pin Oak ............ 862 5 MITIGATION PLAN DETAILS -30 SCALE: 1" = 200' Channe STORMWATER CONVEYANCE CHANNELS SCC W D LINING 1 0 1' VDOT EC -2 Blanket /Matting 2 0 1' VDOT EC -2 Blanket /Matting Soccer Field 4 230'x394' :•_::::::::::.y::::::: ...Mitigation Area::::::::::::::::::::: c .. 2.2 Acres i "��� .............. .... ............................... ••./� 345 340 335 •r } i} + k k + k k k } kT } 1kt EC-1 A, + + _7T Forbay with Rip -Rap Berm Al + cr1 Height = 1' } r ;k + kk +, +} + kk ++ } + "k k + -P 3a + } + k k } } } C ni + + + k k k -1r k �+ k + + N + + k + + k } k k JC.7r k k Al } + + + + k k + + + } + + } }} } + k A- Al k} k A, + k 6" Perforated Drain Pipe 4'x15' Rip1Rap Wier ��'" An access agreement has been Elev= 341.50 provided that allows Albemarle County access to parcel for >r maintenance of Storm Water Management facility. A SECTION A -A 5 340 335 NOTES: 1. The bio- retention basin is not to be constructed until the site is adequately stabilized, according to the Water Resoureces Personnel (434) 296 -5861 2. The sand /soil /leaf mulch material must be inspected by Water Resources Personnel before installation of the bio- retention basin. (434) 296 -5861 3. The distance between cleanouts shall not exceed 50 feet. 3 BIO- FILTER DETAILS �-30V HORZ SCALE: 1" = 20' VERT SCALE: 1" = 5' PLAN VIEW T i} k k + k } }� + Al Jr k + k} } kk } + } + } + } -1" k } k k k } } k k A" Jr k 'P 'r k k k k k k } k k} k} '} .�, Al N + k k k k k k k } 4. rQ k k + k } k A- + } + k k k + k k + k + k Ile k A- Ar k k + Jr k k k Jr A, k} k k k k k }+ k { 4. A{ k k } } I 342.66 /341.91 i 341,46 W 345 340 04 SECTION B -B MS -19 ADEQUATE CHANNEL CALCULATIONS HORZ SCALE: 1" = 20' VERT SCALE: 1" = 5' J� EC Forbay with Rip -Rap Berm Height = 1' 31'x58' Bio- filter Elev = 341.00 ,�- Clean -out (typ) 600' -6" Non - Perforated Drain Pipe Q 0.5% Upper Invert = 337.75 Lower Invert = 334.75 r BIO- FILTER LANDSCAPING TOTAL NUMBER OF TREES AND SHRUBS REQUIRED ... 1,000 PER ACRE OF BIO- FILTER AREA OF BIO- FILTER ............. 0.041 ACRES TOTAL REQUIRED ................... 0.041/1,000 = 41 TOTAL PROVIDED .................. 41 LANDSCAPE SCHEDULE SYMBOL KEY NAME SPECIES QUANTITY Minimum Size T -1 Red Maple Acer rubrum 5 2" caliper T -2 River Birch Betula nigra 5 2" caliper T -3 White Ash Fraxinus 5 2" caliper americana ® S -1 Inkberry Ilex glabro 6 1' in Height ® S -2 Japanese Holly iles Crenata 10 1' in Height S -3 Creeping Juniper hJuniperus 10 1' in Height 342.61 0i .. 5 340 Bio - filter Drainage Area Area = 1.6 Acres C =0.65 Cll -P N Parabolic Channel LLJ J N S© I- ¢ O - C; Q < o Q�Qj W 0 Z 't O = O O Q o w w > > Z Q Q m M m o v z o 0 M t%! 0 w w ry 0 U p to W Wp U r � H t-� Z E-�C Z � I=-i 0 >_4 F4 'I w � a °D z �D E- c maw cri xx W w 00 Q O N 0 Ln O z O CK U Z Z W W w � � O O Z Z O o � � N �-i Tc =5 Minutes 4 12 =5.2 in /hr 09=51 4 rfs 2 -Year Flow Calculations Q n slope velocity Q 0.038 0.0049 2.1 5.4 Q-4 C Ew-i a UJ J ALBEMARLE COUNTY ENGINEERING GENERAL STORMWATER MANAGEMENT NOTES w W O w 1. All dams and constructed fill to be within 95% of maximum dry density and 2% of 0 optimum moisture content. All fill material to be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. SHEET N0. 2. Pipe and riser joints are to be watertight within stormwater management facilities. 3. For temporary sediment traps or basins which are to be converted to permanent C-3 02 stormwater management facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. SHEET % of 10 ^A. . .... .. - `._�,�• y r it r Ul ti / 4� to ,.""may -, � -< /' 1,Qi � 1Ul �� _,I R New Access Easement t � J "•�rF I� SR nag Pole ► i Benchmark: Spike in ground t : FJev= 343.80 4 r♦ r - `, / r \ v ! \ ' s 1 t d \ = 11 i is SC Drainaae Area 1 \ ° ♦1i Area = 0.8 Acres 1 t Tc = 5 minutes �f ! C = 0.5 1 SCC -1 m u 1 Drainage Area ° NOW 1i I i' Area = 0.4 Acres Tc = 5 minutes 1 �►C =0.5 Igo ,1 ! ► \ 1 tab ' 1 o.o ' zo.1' \ � � i > ; , ° 1 New Wood Tire Stop ! \ 1 .0, ! (Typ) ; ' t 1 9 � ! \ 1 `� (` • ! t 1 ! ► I 1 t t \ 1 1 1 1 New Gravel T ` I y' ew Parking a Port -o -John 1 S 1 3417 1 ! > ! 1 i 38 R ! `1. ;' EC- New Rip -Rap Foreboy Berm ' 2' Wide, 1' Tall ui \\ � � 1 t,. Bio - filter. Drainage Area {. Area = 1.6 Acres j Paved area = 35,490 SF 1 �I Filter Area Required: 35,490 *0.05 =1,775 SF 1 Filter Area Provided: 31' *58' =1,798 SF i C =0.6 Tc =5 Minutes } (� 12 =5.2 in /hr 1 Q2 =5.0 cfs it \ o ` i 1 ❑ 1 I , l i New Clean -Out I New Bio -fdter Provided every 50' r r { Elev -341.0 L - - . L �342b1 /, Rip -rap Wier C" f ` 34266 134GS1 (t4l.4e SCC DRAINAGE AREAS -30 SCALE: 1" = 50' 'gib i f 50' 0 50' 100' 150' 2 BIO- FILTER DRAINAGE AREA 50' 0 50' 100' 150' -30 SCALE: 1" = 50' SCALE: 1 " =50' SCALE: 1 "=50' STORMWATER CONVEYANCE CHANNEL DETAILS SCALE: NTS NOTES: 1. The area of stream buffer to be disturbed by this project is 48,050 SF. 2. The mitigation area required = 2 * 1.1 Acres = 2.2 Acres. 3. The mitigation area provided = 2.2 Acres. 4. New Plantings will comply with Option 1.b: For every acre or fraction thereof, plant 1,210 hardwood and /or pine seedlings on approximately 6'x6' centers without tree tubes and mats. 5. Seedlings required = 1,210 * 2.2 = 2,662 seedlings. 6. Seedlings shall consists of the following trees: Yellow Birch....... 600 White Ash ........ 600 Willow Oak ....... 600 Pin Oak ............ 862 5 MITIGATION PLAN DETAILS -30 SCALE: 1" = 200' Channe STORMWATER CONVEYANCE CHANNELS SCC W D LINING 1 0 1' VDOT EC -2 Blanket /Matting 2 0 1' VDOT EC -2 Blanket /Matting Soccer Field 4 230'x394' :•_::::::::::.y::::::: ...Mitigation Area::::::::::::::::::::: c .. 2.2 Acres i "��� .............. .... ............................... ••./� 345 340 335 •r } i} + k k + k k k } kT } 1kt EC-1 A, + + _7T Forbay with Rip -Rap Berm Al + cr1 Height = 1' } r ;k + kk +, +} + kk ++ } + "k k + -P 3a + } + k k } } } C ni + + + k k k -1r k �+ k + + N + + k + + k } k k JC.7r k k Al } + + + + k k + + + } + + } }} } + k A- Al k} k A, + k 6" Perforated Drain Pipe 4'x15' Rip1Rap Wier ��'" An access agreement has been Elev= 341.50 provided that allows Albemarle County access to parcel for >r maintenance of Storm Water Management facility. A SECTION A -A 5 340 335 NOTES: 1. The bio- retention basin is not to be constructed until the site is adequately stabilized, according to the Water Resoureces Personnel (434) 296 -5861 2. The sand /soil /leaf mulch material must be inspected by Water Resources Personnel before installation of the bio- retention basin. (434) 296 -5861 3. The distance between cleanouts shall not exceed 50 feet. 3 BIO- FILTER DETAILS �-30V HORZ SCALE: 1" = 20' VERT SCALE: 1" = 5' PLAN VIEW T i} k k + k } }� + Al Jr k + k} } kk } + } + } + } -1" k } k k k } } k k A" Jr k 'P 'r k k k k k k } k k} k} '} .�, Al N + k k k k k k k } 4. rQ k k + k } k A- + } + k k k + k k + k + k Ile k A- Ar k k + Jr k k k Jr A, k} k k k k k }+ k { 4. A{ k k } } I 342.66 /341.91 i 341,46 W 345 340 04 SECTION B -B MS -19 ADEQUATE CHANNEL CALCULATIONS HORZ SCALE: 1" = 20' VERT SCALE: 1" = 5' J� EC Forbay with Rip -Rap Berm Height = 1' 31'x58' Bio- filter Elev = 341.00 ,�- Clean -out (typ) 600' -6" Non - Perforated Drain Pipe Q 0.5% Upper Invert = 337.75 Lower Invert = 334.75 r BIO- FILTER LANDSCAPING TOTAL NUMBER OF TREES AND SHRUBS REQUIRED ... 1,000 PER ACRE OF BIO- FILTER AREA OF BIO- FILTER ............. 0.041 ACRES TOTAL REQUIRED ................... 0.041/1,000 = 41 TOTAL PROVIDED .................. 41 LANDSCAPE SCHEDULE SYMBOL KEY NAME SPECIES QUANTITY Minimum Size T -1 Red Maple Acer rubrum 5 2" caliper T -2 River Birch Betula nigra 5 2" caliper T -3 White Ash Fraxinus 5 2" caliper americana ® S -1 Inkberry Ilex glabro 6 1' in Height ® S -2 Japanese Holly iles Crenata 10 1' in Height S -3 Creeping Juniper hJuniperus 10 1' in Height 342.61 0i .. 5 340 Bio - filter Drainage Area Area = 1.6 Acres C =0.65 Cll -P N Parabolic Channel LLJ J N S© I- ¢ O - C; Q < o Q�Qj W 0 Z 't O = O O Q o w w > > Z Q Q m M m o v z o 0 M t%! 0 w w ry 0 U p to W Wp U r � H t-� Z E-�C Z � I=-i 0 >_4 F4 'I w � a °D z �D E- c maw cri xx W w 00 Q O N 0 Ln O z O CK U Z Z W W w � � O O Z Z O o � � N �-i Tc =5 Minutes 4 12 =5.2 in /hr 09=51 4 rfs 2 -Year Flow Calculations Q n slope velocity Q 0.038 0.0049 2.1 5.4 Q-4 C Ew-i a UJ J ALBEMARLE COUNTY ENGINEERING GENERAL STORMWATER MANAGEMENT NOTES w W O w 1. All dams and constructed fill to be within 95% of maximum dry density and 2% of 0 optimum moisture content. All fill material to be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. SHEET N0. 2. Pipe and riser joints are to be watertight within stormwater management facilities. 3. For temporary sediment traps or basins which are to be converted to permanent C-3 02 stormwater management facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. SHEET % of 10 . .... .. - �� it r ry New Clean -Out I New Bio -fdter Provided every 50' r r { Elev -341.0 L - - . L �342b1 /, Rip -rap Wier C" f ` 34266 134GS1 (t4l.4e SCC DRAINAGE AREAS -30 SCALE: 1" = 50' 'gib i f 50' 0 50' 100' 150' 2 BIO- FILTER DRAINAGE AREA 50' 0 50' 100' 150' -30 SCALE: 1" = 50' SCALE: 1 " =50' SCALE: 1 "=50' STORMWATER CONVEYANCE CHANNEL DETAILS SCALE: NTS NOTES: 1. The area of stream buffer to be disturbed by this project is 48,050 SF. 2. The mitigation area required = 2 * 1.1 Acres = 2.2 Acres. 3. The mitigation area provided = 2.2 Acres. 4. New Plantings will comply with Option 1.b: For every acre or fraction thereof, plant 1,210 hardwood and /or pine seedlings on approximately 6'x6' centers without tree tubes and mats. 5. Seedlings required = 1,210 * 2.2 = 2,662 seedlings. 6. Seedlings shall consists of the following trees: Yellow Birch....... 600 White Ash ........ 600 Willow Oak ....... 600 Pin Oak ............ 862 5 MITIGATION PLAN DETAILS -30 SCALE: 1" = 200' Channe STORMWATER CONVEYANCE CHANNELS SCC W D LINING 1 0 1' VDOT EC -2 Blanket /Matting 2 0 1' VDOT EC -2 Blanket /Matting Soccer Field 4 230'x394' :•_::::::::::.y::::::: ...Mitigation Area::::::::::::::::::::: c .. 2.2 Acres i "��� .............. .... ............................... ••./� 345 340 335 •r } i} + k k + k k k } kT } 1kt EC-1 A, + + _7T Forbay with Rip -Rap Berm Al + cr1 Height = 1' } r ;k + kk +, +} + kk ++ } + "k k + -P 3a + } + k k } } } C ni + + + k k k -1r k �+ k + + N + + k + + k } k k JC.7r k k Al } + + + + k k + + + } + + } }} } + k A- Al k} k A, + k 6" Perforated Drain Pipe 4'x15' Rip1Rap Wier ��'" An access agreement has been Elev= 341.50 provided that allows Albemarle County access to parcel for >r maintenance of Storm Water Management facility. A SECTION A -A 5 340 335 NOTES: 1. The bio- retention basin is not to be constructed until the site is adequately stabilized, according to the Water Resoureces Personnel (434) 296 -5861 2. The sand /soil /leaf mulch material must be inspected by Water Resources Personnel before installation of the bio- retention basin. (434) 296 -5861 3. The distance between cleanouts shall not exceed 50 feet. 3 BIO- FILTER DETAILS �-30V HORZ SCALE: 1" = 20' VERT SCALE: 1" = 5' PLAN VIEW T i} k k + k } }� + Al Jr k + k} } kk } + } + } + } -1" k } k k k } } k k A" Jr k 'P 'r k k k k k k } k k} k} '} .�, Al N + k k k k k k k } 4. rQ k k + k } k A- + } + k k k + k k + k + k Ile k A- Ar k k + Jr k k k Jr A, k} k k k k k }+ k { 4. A{ k k } } I 342.66 /341.91 i 341,46 W 345 340 04 SECTION B -B MS -19 ADEQUATE CHANNEL CALCULATIONS HORZ SCALE: 1" = 20' VERT SCALE: 1" = 5' J� EC Forbay with Rip -Rap Berm Height = 1' 31'x58' Bio- filter Elev = 341.00 ,�- Clean -out (typ) 600' -6" Non - Perforated Drain Pipe Q 0.5% Upper Invert = 337.75 Lower Invert = 334.75 r BIO- FILTER LANDSCAPING TOTAL NUMBER OF TREES AND SHRUBS REQUIRED ... 1,000 PER ACRE OF BIO- FILTER AREA OF BIO- FILTER ............. 0.041 ACRES TOTAL REQUIRED ................... 0.041/1,000 = 41 TOTAL PROVIDED .................. 41 LANDSCAPE SCHEDULE SYMBOL KEY NAME SPECIES QUANTITY Minimum Size T -1 Red Maple Acer rubrum 5 2" caliper T -2 River Birch Betula nigra 5 2" caliper T -3 White Ash Fraxinus 5 2" caliper americana ® S -1 Inkberry Ilex glabro 6 1' in Height ® S -2 Japanese Holly iles Crenata 10 1' in Height S -3 Creeping Juniper hJuniperus 10 1' in Height 342.61 0i .. 5 340 Bio - filter Drainage Area Area = 1.6 Acres C =0.65 Cll -P N Parabolic Channel LLJ J N S© I- ¢ O - C; Q < o Q�Qj W 0 Z 't O = O O Q o w w > > Z Q Q m M m o v z o 0 M t%! 0 w w ry 0 U p to W Wp U r � H t-� Z E-�C Z � I=-i 0 >_4 F4 'I w � a °D z �D E- c maw cri xx W w 00 Q O N 0 Ln O z O CK U Z Z W W w � � O O Z Z O o � � N �-i Tc =5 Minutes 4 12 =5.2 in /hr 09=51 4 rfs 2 -Year Flow Calculations Q n slope velocity Q 0.038 0.0049 2.1 5.4 Q-4 C Ew-i a UJ J ALBEMARLE COUNTY ENGINEERING GENERAL STORMWATER MANAGEMENT NOTES w W O w 1. All dams and constructed fill to be within 95% of maximum dry density and 2% of 0 optimum moisture content. All fill material to be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. SHEET N0. 2. Pipe and riser joints are to be watertight within stormwater management facilities. 3. For temporary sediment traps or basins which are to be converted to permanent C-3 02 stormwater management facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. SHEET % of 10 Soccer Field 4 230'x394' :•_::::::::::.y::::::: ...Mitigation Area::::::::::::::::::::: c .. 2.2 Acres i "��� .............. .... ............................... ••./� 345 340 335 •r } i} + k k + k k k } kT } 1kt EC-1 A, + + _7T Forbay with Rip -Rap Berm Al + cr1 Height = 1' } r ;k + kk +, +} + kk ++ } + "k k + -P 3a + } + k k } } } C ni + + + k k k -1r k �+ k + + N + + k + + k } k k JC.7r k k Al } + + + + k k + + + } + + } }} } + k A- Al k} k A, + k 6" Perforated Drain Pipe 4'x15' Rip1Rap Wier ��'" An access agreement has been Elev= 341.50 provided that allows Albemarle County access to parcel for >r maintenance of Storm Water Management facility. A SECTION A -A 5 340 335 NOTES: 1. The bio- retention basin is not to be constructed until the site is adequately stabilized, according to the Water Resoureces Personnel (434) 296 -5861 2. The sand /soil /leaf mulch material must be inspected by Water Resources Personnel before installation of the bio- retention basin. (434) 296 -5861 3. The distance between cleanouts shall not exceed 50 feet. 3 BIO- FILTER DETAILS �-30V HORZ SCALE: 1" = 20' VERT SCALE: 1" = 5' PLAN VIEW T i} k k + k } }� + Al Jr k + k} } kk } + } + } + } -1" k } k k k } } k k A" Jr k 'P 'r k k k k k k } k k} k} '} .�, Al N + k k k k k k k } 4. rQ k k + k } k A- + } + k k k + k k + k + k Ile k A- Ar k k + Jr k k k Jr A, k} k k k k k }+ k { 4. A{ k k } } I 342.66 /341.91 i 341,46 W 345 340 04 SECTION B -B MS -19 ADEQUATE CHANNEL CALCULATIONS HORZ SCALE: 1" = 20' VERT SCALE: 1" = 5' J� EC Forbay with Rip -Rap Berm Height = 1' 31'x58' Bio- filter Elev = 341.00 ,�- Clean -out (typ) 600' -6" Non - Perforated Drain Pipe Q 0.5% Upper Invert = 337.75 Lower Invert = 334.75 r BIO- FILTER LANDSCAPING TOTAL NUMBER OF TREES AND SHRUBS REQUIRED ... 1,000 PER ACRE OF BIO- FILTER AREA OF BIO- FILTER ............. 0.041 ACRES TOTAL REQUIRED ................... 0.041/1,000 = 41 TOTAL PROVIDED .................. 41 LANDSCAPE SCHEDULE SYMBOL KEY NAME SPECIES QUANTITY Minimum Size T -1 Red Maple Acer rubrum 5 2" caliper T -2 River Birch Betula nigra 5 2" caliper T -3 White Ash Fraxinus 5 2" caliper americana ® S -1 Inkberry Ilex glabro 6 1' in Height ® S -2 Japanese Holly iles Crenata 10 1' in Height S -3 Creeping Juniper hJuniperus 10 1' in Height 342.61 0i .. 5 340 Bio - filter Drainage Area Area = 1.6 Acres C =0.65 Cll -P N Parabolic Channel LLJ J N S© I- ¢ O - C; Q < o Q�Qj W 0 Z 't O = O O Q o w w > > Z Q Q m M m o v z o 0 M t%! 0 w w ry 0 U p to W Wp U r � H t-� Z E-�C Z � I=-i 0 >_4 F4 'I w � a °D z �D E- c maw cri xx W w 00 Q O N 0 Ln O z O CK U Z Z W W w � � O O Z Z O o � � N �-i Tc =5 Minutes 4 12 =5.2 in /hr 09=51 4 rfs 2 -Year Flow Calculations Q n slope velocity Q 0.038 0.0049 2.1 5.4 Q-4 C Ew-i a UJ J ALBEMARLE COUNTY ENGINEERING GENERAL STORMWATER MANAGEMENT NOTES w W O w 1. All dams and constructed fill to be within 95% of maximum dry density and 2% of 0 optimum moisture content. All fill material to be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. SHEET N0. 2. Pipe and riser joints are to be watertight within stormwater management facilities. 3. For temporary sediment traps or basins which are to be converted to permanent C-3 02 stormwater management facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. SHEET % of 10 342.61 0i .. 5 340 Bio - filter Drainage Area Area = 1.6 Acres C =0.65 Cll -P N Parabolic Channel LLJ J N S© I- ¢ O - C; Q < o Q�Qj W 0 Z 't O = O O Q o w w > > Z Q Q m M m o v z o 0 M t%! 0 w w ry 0 U p to W Wp U r � H t-� Z E-�C Z � I=-i 0 >_4 F4 'I w � a °D z �D E- c maw cri xx W w 00 Q O N 0 Ln O z O CK U Z Z W W w � � O O Z Z O o � � N �-i Tc =5 Minutes 4 12 =5.2 in /hr 09=51 4 rfs 2 -Year Flow Calculations Q n slope velocity Q 0.038 0.0049 2.1 5.4 Q-4 C Ew-i a UJ J ALBEMARLE COUNTY ENGINEERING GENERAL STORMWATER MANAGEMENT NOTES w W O w 1. All dams and constructed fill to be within 95% of maximum dry density and 2% of 0 optimum moisture content. All fill material to be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. SHEET N0. 2. Pipe and riser joints are to be watertight within stormwater management facilities. 3. For temporary sediment traps or basins which are to be converted to permanent C-3 02 stormwater management facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. SHEET % of 10 r � H t-� Z E-�C Z � I=-i 0 >_4 F4 'I w � a °D z �D E- c maw cri xx W w 00 Q O N 0 Ln O z O CK U Z Z W W w � � O O Z Z O o � � N �-i Tc =5 Minutes 4 12 =5.2 in /hr 09=51 4 rfs 2 -Year Flow Calculations Q n slope velocity Q 0.038 0.0049 2.1 5.4 Q-4 C Ew-i a UJ J ALBEMARLE COUNTY ENGINEERING GENERAL STORMWATER MANAGEMENT NOTES w W O w 1. All dams and constructed fill to be within 95% of maximum dry density and 2% of 0 optimum moisture content. All fill material to be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. SHEET N0. 2. Pipe and riser joints are to be watertight within stormwater management facilities. 3. For temporary sediment traps or basins which are to be converted to permanent C-3 02 stormwater management facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. SHEET % of 10 Q-4 C Ew-i a UJ J ALBEMARLE COUNTY ENGINEERING GENERAL STORMWATER MANAGEMENT NOTES w W O w 1. All dams and constructed fill to be within 95% of maximum dry density and 2% of 0 optimum moisture content. All fill material to be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. SHEET N0. 2. Pipe and riser joints are to be watertight within stormwater management facilities. 3. For temporary sediment traps or basins which are to be converted to permanent C-3 02 stormwater management facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. SHEET % of 10 Soccer Field 1 5 &1�Flog Pole New Access Easement Spike in ground Soccer Field 2 Elev=343.80 01 :11 Vb CD 01 TURBANC LLJ LJ CD Nie!b Land ape Flood Zone AE T er co CO UMZ 000 0 001, 0000(,60 W Pav-A Entrance Steel Benchmar Spike in ground pes S Of h. New Access Easement CD C14 js CD J. CL Gravel Accp_5Fr'k� Culvert d� Upper ffiv=341.66 ID Cb CD LLJ is LIJ SHEET NO. C�401 tz_ Contractor shall minimize impact to existing trees when installing drain pipe. Soccer Field 4 Contractor shall minimize — impact to existing trees when installing drain pipe. SOIJ SCALE: 1"=3O' / / � \ ` —J C14 & ck� 0 Gravel Ac 'Rood Culvert Upper Ihv=341.66 0 1- V, Inv=341.34 15 R New Access Easement 5� 5-� 5-: &--Flag Pole J1 0 0 Z C) Spike in ground LJ LLJ Soccer Field 2 Elev=343.80 C-) co MATCHLINE C .0, W! 0 �q CD CD CD OrTI CD cn CD CIO CD 0. CD New Wood Tire Stop LIMIT OF DISTURBAN LLJ New Gravel 'Y Parking New 341.7 y —Rap orebay Berm Ea)l New Rip New Bio—filter P ) NVI ed every 50' L 342,61( .34 Rip—rap Wi LL� L LIMIT)S OF DISTURBANCE Soccer Field 3 LP LLJ Contractor shall minimize impact to existing trees when installing drain pipe. 7) Uj LLJ SOIJ VA SHEET NO. C,- 4 0 2 M E __ -TH E ET LWWYW SCALE: 1 "=30' MATCHLINE THIS SHEET \ � \ \ \ / \ \ \ \ . \ � T \ � \ ` —J C14 & ck� 0 Gravel Ac 'Rood Culvert Upper Ihv=341.66 0 1- V, Inv=341.34 15 R New Access Easement 5� 5-� 5-: &--Flag Pole J1 0 0 Z C) Spike in ground LJ LLJ Soccer Field 2 Elev=343.80 C-) co MATCHLINE C .0, W! 0 �q CD CD CD OrTI CD cn CD CIO CD 0. CD New Wood Tire Stop LIMIT OF DISTURBAN LLJ New Gravel 'Y Parking New 341.7 y —Rap orebay Berm Ea)l New Rip New Bio—filter P ) NVI ed every 50' L 342,61( .34 Rip—rap Wi LL� L LIMIT)S OF DISTURBANCE Soccer Field 3 LP LLJ Contractor shall minimize impact to existing trees when installing drain pipe. 7) Uj LLJ SOIJ VA SHEET NO. C,- 4 0 2 M E __ -TH E ET LWWYW SCALE: 1 "=30' MATCHLINE THIS SHEET Stone Construction Access 70' Min----- - 3" SM -2A Asphalt 717 Cinno T _ 9% SIODP_ Existing Grade B t- � Stone - -� Construction Access 12' Mi Positive Drainage To Sediment 2% Slope Trapping Device SECTION A -A Filter Cloth NOTE: A minimum water tap of 1" must be installed with a minimum 1" ballcock shutoff valve supplying a wash hose with a diameter of 1.5" for adequate constant pressure. Wash waster must be carried away from the paved construction entrance to an approved settling area to remove sediment. All sediment shall be prevented from entering storm drains, ditches, or watercourses. PAVED CONSTRUCTION ENTRANCE SCALE: NTS - - -36 ` .......348....._....._..... �- ...,.,.. 16 SILT FENCE STD. & SPEC. 3.05 - VA. EROSION AND SEDIMENT CONTROL HANDBOOK (1992) NO WIRE BACKING WITH WIRE BACKING 16" - p�ol� �1 � __�Awp __11�.411 PROVIDE I" TUCK OR SUITABLY REINFORCED TOP END SECTION 16" - __. roo I - _: ___ - �_, �, IV iiw 4 01!0� EMBED 8" OF FILTER CLOTH IN TRENCH TO ANCHOR BOTTOM OF CLOTH COMPACT THOROUGHLY 10' MAX 9�r____/"MESH WIRE `` n PROVIDE I" TUCK OR SUITABLY REINFORCED TOP END SECTION _--� -4 u EMBED 8" OF FILTER CLOTH IN TRENCH TO ANCHOR BOTTOM OF CLOTH. COMPACT THOROUGHLY 2 SILT FENCE (SF) -40 SCALE: NTS i, MESH SHALL BE A MINIMUM ur 14 GUAGE AND SHALL HAVE A MAXIMUM MESH SPACING OF 6 ". `.4 / 1 .......�. % // v� L1 3 :1E OUTLET TO AT AREA WITH ) DEFINED CHANNEL - d50 = 6" 0% - II- dd =12" I SECTION A -A FILTER CLOTH-] KEY IN 6 " -9 "; RECOMMENDED FOR APRON LINING SHALL BE ENTIRE PERIMETER 3 OUTLET PROTECTION (OP) -40 SCALE: NTS V, f l / . 4 SOILS MAP -40 SCALE: 1" = 200' ■ ■ ■■■ SCALE: 1 00 t PERMANENT & TEMPORARY STABILIZATION ' Permanent seeding shall be applied within seven (7) days after final grading is completed. 1� TEMPORARY SEEDING SPECIFICATIONS: J' February 16 through April 30: !l' i Use Annual Ryegrass at 60 to 100 Ibs /acre. May 1 through August 31: Use German Millet at 50 Ibs /acre. September 1 through February 15: r Use a 50/50 Mix of Annual Rye and Winter Rye at 50 to 100 Ibs /acre. 3 PERMANENT SEEDING SPECIFICATIONS: February 16 through April 30: Kentucky 31 Fescue - 128 Ibs /acre; Annual Rye - 20 Ibs /acre. May h August 15: " Y 1 through Kentucky 31 Fescue - 128 Ibs /acre; Foxtail Millet - 20 Ibs /acre. August 16 through October 31: Kentucky 31 Fescue - 128 Ibs /acre; Annual Rye - 20 Ibs /acre. November 1 through February 15: Kentucky 31 Fescue - 128 Ibs /acre; Winter Rye - 20 Ibs /acre. ......... •.... MULCHING SPECIFICATIONS: Straw or hay at a rate of 2 tons /acre. Must be anchored. Spread with mulch blower or by hand. EROSION & SEDIMENT CONTROL NOTES 1A ES -1: Unless otherwise indicated, all vegetative and structural erosion and sediment control practices will be constructed and maintained according to the minimum standards and specifications of the Virginia Erosions and Sediment Control Handbook and Virginia regulations VR 625 -02 -00 - o Q Z; ES -2: The plan approving authority must be notified one week prior to the pre- construction conference, one week prior to the r- v commencement of land disturbing activity, and one week prior to final inspection. F_- ES-3: All erosions and sediment control measures are to be placed prior to or as a first step in the 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 limited to, oN � off -site barrow or waste areas) the contractor shall submit a supplementary erosion control plan to the owner for review and -, 0 approval by the plan approving authority. C14 V) 0 o Q Of ry ES -6: The contractor is responsible for installation of any additional erosion control measures as necessary to prevent erosion and sedimentation as determined by the plan approving authority. o L m m m Z Q Q ES -7: All disturbed areas are to drain to approved sediment control measures at all times during land disturbing activities and m C) Z o 0 during site development until final stabilization is achieved. o Q Z � � w o = ES -8: During dewatering operations, water will be pumped into an approved filtering device. o v ES -9: The contractor shall inspect all erosion control measures periodically and after each runoff- producing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made immediately. Erosion Notes: 1) All Entrances except the approved construction entrance shall be blocked in such a manner as to not allow access to the site. 2) The developer shall reserve the right to install, maintain, remove and /or convert to permanent structure all erosion and sediment control measures required by this plan regardless of the sale of any lot. (� El 9E 3) A video camera inspection is required for all storm sewers and culverts that are deemed inaccessible to VDOT inspections and � p are to be accepted into VDOT's maintenance and program and ownership. The video inspection shall be conducted in accordance �j �D M U with VDOT's video inspection procedure and with a VDOT and /or county inspector present. In addition, if high- density polyethylene 0Ny r4 a � M (HDPE) pipe or pipe system, the contractor and a representative from the pipe manufacturer should hold a pre - construction (`� w > 00 Z meeting for installation. i =d a W -t EROSION MAINTENANCE SCHEDULE E-�'f� C)� ALBEMARLE COUNTY ENGINEERING H CO a Z GENERAL CONSTRUCTION NOTES FOR EROSION & SEDIMENT CONTROL �J�n4 w controls an a daily basis until the site is stabilized and especially after a heavy rainfall t0 assure that 1. The plan approving authority must be notified one week prior to the pre- construction conference, one week prior to Z all controlls are in place and that none have been damaged. Any damaged control shall be repaired the commencement of land disturbing activity, and one week prior to the final inspection. C 2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and Z specifications of the Virginia Erosion and Sediment control Handbook and Virginia Regulations VR 625 -02 -22 Erosion W ~ and Sediment Control Regulations. 3. All erosion and sediment control measures are to be placed prior to or as the first step in clearing. 4. A copy of the approved erosion and sediment control plans shall be maintained on the site at all times. ,� 5. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but not limits by spreading on site or hauling away if not suitable for fill. to, off -site borrow or waste areas), the contractor shall submit a supplementary erosion control plan to the owner 1:2) for review and approval by the plan approving authority. 6. The contractor is responsible for installation of any additional erosion control measures necessary to prevent erosion be inspected and repaired after each rainfall and cleaned if sediment has accumulated to half of the and sedimentation as determined by the plan approving authority. H 7. All disturbed areas are to drain to approved sediment control measures at all times during land disturbing activities device s original height. and during site development until final stabilization is achieved. 8. During dewotering operation water will be pumped into an approved filtering device. 9. The contractor shall Inspect all erosion control measures periodically and after each runoff- producing rainfall event. 4. All earthen structures such as diversion dikes and berms shall be checked daily during construction for Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made immediately. breaching by equipment. Repairs shall be made immediately. 10. All fill material to be taken from an approved, designated borrow area. 11. All waste material shall be taken to an approved waste area. Earth fill shall be inert materials only, free of roots, F__ stumps, wood, rubbish, and other debris. 12. Borrow or waste areas are to be reclaimed within 7 days of completion per zoning Ordinance Section 5.1.28. 13. All inert materials shall be transported in compliance with Section 13 -301 of the code of Albemarle. with silt. All repairs shall be made immediately. 14. borrow, fill or waste activity involving industrial -type power equipment shall be limited to the hours of 7:OOAM to 9: OOPM. 7) O 15. Borrow, fill or waste activity shall be conducted in a safe manner that maintains lateral support, or order to minimize w w 6. All seeded areas shall be inspected regularly to see that good stand is maintained. Areas will be any hazard to persons, physical damage to adjacent land and improvements, and damage to any public street because of slides, sinking, or collapse. re- fertilized and re- seeded as necessary. 16. The developer shall reserve the right to install, maintain, remove or convert to permanent Stormwater Management 7. After construction operations have ended and disturbed areas have been stabilized, all berms and Facilities (where applicable) and all erosion control measures required by this plan regardless of the sale of any lot, unit, building or portion of the property. sediment - trapping devices may be removed after removal, the ground shall be restored to its natural C-4 03 or proposed condition to include establishment of permanent vegetation. Removal of any control is 17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75 Ibs /acre, and in the months �r of September to February to consist of a 50/50 mix of annual ryegrass and cereal winter rye, or in March and April SHEET ° N° of 10 to consist of annual Rye, or May through August to consist of German Millet. Straw mulch is to be applied at o o CD 80lbs /100SF. Alternatives are subject to approved by the County Erosion Control Inspector. o ° 18. Permanent. Stabilization shall be lime and fertilizer, permanent seeding, and mulch. Agricultural grade limestone shall be applied at 90lbs /1000sf, incorporated into the top 4 -6 inches of soil. Fertilizer shall be applied at 1000lbs /acre and consist of a 10 -20 -10 nutrient mix. Permanent seeding shall be applied at 180 Ibs /acre and consist of 95% Kentucky 31 or tall fescue and 0 -5% perennial ryegrass or Kentucky bluegrass. Straw mulch is to be applied at 80lbs /100sf. Alternatives are subject to approved by the County Erosion Control Inspector. 19. Maintenance: all measures are to be inspected weekly and after each rainfall. Any damage or clogging to structural Z measures is to be repaired immediately. Silt Traps are to be cleaned when 50% of the wet storage volume is filled o with sediment. All seeded areas are to be re- seeded when necessary to achieve a good stand of grass. Silt fence n and diversion dykes which are collecting sediment to half their height must be cleaned and repaired. z 20. All temporary erosion and sediment control measures are to be removed within 30 days of final site stabilization, vi L,, w when measures are no longer needed, subject to approval by the County Erosion Inspector. w M 21. This plan shall be void if the Owner does not obtain a permit within 1 year of the date of approval. (Water (D Protection Ordinance Section 17 -204G) 22. Permanent vegetation shall be installed on all denuded areas within nine (9) months after the date the land z z disturbing activity commenced. (Water Protection Ordinance Section 17 -207B) o 0 � � N EROSION MAINTENANCE SCHEDULE C)� 1. The Site Superintendent or his representative shall make a visual inspection of all erosion and sediment Q controls an a daily basis until the site is stabilized and especially after a heavy rainfall t0 assure that all controlls are in place and that none have been damaged. Any damaged control shall be repaired prior to the end of each workday to include re- seeding if necessary. ~ 2. All silt trapping devices shall be cleaned out at 50 percent capacity and sediment shall be disposed of ,� W by spreading on site or hauling away if not suitable for fill. 1:2) 3. Gravel Outlets shall be checked regularly for sediment buildup that may prevent drainage. Controls shall be inspected and repaired after each rainfall and cleaned if sediment has accumulated to half of the H O device s original height. ►--i 4. All earthen structures such as diversion dikes and berms shall be checked daily during construction for 0 breaching by equipment. Repairs shall be made immediately. Ld F__ 5. Silt fences shall be checked after each rainstorm to assure they have not fallen or become clogged with silt. All repairs shall be made immediately. 7) O w w 6. All seeded areas shall be inspected regularly to see that good stand is maintained. Areas will be a � re- fertilized and re- seeded as necessary. SHEET N0. 7. After construction operations have ended and disturbed areas have been stabilized, all berms and sediment - trapping devices may be removed after removal, the ground shall be restored to its natural C-4 03 or proposed condition to include establishment of permanent vegetation. Removal of any control is contingent upon approval of the County Inspector. L �� J� SHEET 10 of 10