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HomeMy WebLinkAboutWPO201600054 Plan - VSMP 2021-12-13GENERAL NOTES OWNER: WOODBRIAR ASSOCIATES PO BOX 5548 CHARLOTTESVILLE,VA 22905 ENGINEER: COLLINS ENGINEERING 200 GARRETT STREET, SUITE K CHARLOTTESVILLE,VA 22902 434.293.3719 SURVEYOR: LINCOLN SURVEYING 632 BERKMAR CIRCLE CHARLOTTESVILLE,VA 22901 434.974.1417 SURVEYOR: BOUNDARY OF THE SITE WAS PROVIDED BY LINCOLN SURVEYING IN FEBRUARY, 2013. TOPOGRAPHY PROVIDED BY THE ENGINEERING GROUPIE FROM AERIAL FLOWN TOPO IN JANUARY, 2007. TOPOGRAPHY SURVEY WAS LATER UPDATED IN DECEMBER OF 2015 AND THE WINTER OF 2020. SITE WAS FIELD VERIFIED IN APRIL OF 2020. TAX MAP PARCEL: TMP 032G0-00-00-001R4 D.B. 5225 PG. 676 TOTAL ACREAGE: TOTAL TMP AREA=27.351 ACRES; THIS PLAN's AREA=16.166 ACRES ZONING: PRD (ZMA 1991-00013, ZMA 1995-00005, ZMA 2004-00014, AND ZMA 2005-00009) USE: 13 SINGLE FAMILY DETACHED UNITS SETBACKS: FRONT 20 FEET MINIMUM SIDE 6 FEET MINIMUM REAR 5 FEET MINIMUM BUILDING HEIGHT: 35 FEET MAXIMUM STREETS: CURB AND GUTTER, PUBLIC STREETS EXISTING CONDITIONS: SITE IS MOSTLY WOODED UTILITIES: SITE WILL BE SERVED BY PUBLIC WATER AND SEWER PHASING: PHASE 6 - LOTS 126-138 (13 LOTS) FLOODPLAIN: A 100-YEAR FLOODPLAIN EXISTS WITHIN THE PROPERTY PER FEMA MAP #51003C0145D PANEL 145D (DATED FEBRUARY 4, 2005). THE 100-YEAR FLOODPLAIN IS OUTSIDE THE LIMITS OF THE PROPOSED 13 LOTS. STREAM BUFFERS: A WPO BUFFER EXISTS WITHIN THE PROPERTY. NO STREAM BUFFERS EXIST WITHIN THE LIMITS OF THE PROPOSED 13 LOTS. DATUM: NAD83 OPEN SPACE: 13.602 ACRES (84% OF TOTAL AREA) LOTS: 2.252 ACRES (14% OF TOTAL AREA) PUBLIC R/W: 0.312 ACRES (2% OF TOTAL AREA) CRITICAL SLOPES: EXISTING PRESERVED AND MANAGED STEEP SLOPES ARE SHOWN AND LABELED ON THE PLAN SHEET. PARKING: EACH SINGLE FAMILY LOT WILL HAVE TWO OFF-STREET PARKING SPACES. LIGHTING: NO STREET LIGHTING IS PROPOSED. LANDSCAPING: STREET TREES ARE PROPOSED ALONG SUNSET DRIVE, SEE SHEET 3 FOR DETAILS. RETAINING WALLS: RETAINING WALLS ARE PROPOSED. SIGNAGE: NO SIGNAGE IS CURRENTLY PROPOSED. ANY SIGNAGE WILL BE INCLUDED WITH THE FINAL SITE PLAN OR UNDER SEPARATE APPLICATION. WATERSHED: NORTH FORK RIVANNA (ABOVE WATER INTAKE) STREET TREES: STREET TREES SHALL BE PROVIDED ALONG ALL PUBLIC ROADS IN ACCORDANCE WITH COUNTY REQUIREMENTS. TRASH COLLECTION: TRASH RECEPTACLES SHALL BE MAINTAINED ON EACH INDIVIDUAL LOT. BUILDING SITES: EACH LOT CONTAINS A BUILDING SITE THAT COMPLIES WITH SECTION 4.2.1 OF THE ALBEMARLE COUNTY ZONING ORDINANCE. IMPERVIOUS AREAS: ROADS 0.25 AC. SIDEWALKS 0.07 AC. BUILDABLE AREA 1.08 AC. TOTAL 1.40 AC. FIRE FLOW: A FIRE HYDRANT FLOW TEST WAS COMPLETED NEAR THIS PROPERTY RECENTLY. THE PRESSURE HYDRANT (HYD. 12670) IS LOCATED APPROXIMATELY 0.2 MILES FROM THE SUBJECT PROPERTY AND RECORDED A PRESSURE DROP OF 25 psi (FROM 133 psi TO 108 psi) WHILE TWO FLOW HYDRANTS (HYD. 12671 & HYD. 12937) RELEASED FLOWS OF 1,118 gpm AND 1,082 gpm FOR A DURATION OF 2 MINUTES. NOTE: A PORTION OF THIS PROPERTY's PROPOSED OPEN SPACE IS LOCATED WITHIN A DAM INUNDATION ZONE. BRIARWOOD PHASE 6 VSMP PLAN AMENDMENT #1 (AMENDMENT #1 TO WPO 201600054) RIO MAGISTERIAL DISTRICT ALBEMARLE COUNTY, VIRGINIA h >`-- I i I I I I - I z-- �� ¢. o� — 5KU _ Z7 r `may, ,\ ` ` I • _ - � H PUBLIC R/W) (VAR WIDT � o d •e e - Jt x s�• I < `ram. / ------------ ,, I IN Po \ y> , r ® � i cl g . � 1 „ �eg I, — �p _ - --- - --------------- ------------- I T OWNER WOODBRIAR ASSOCIATES PO BOX 5548 CHARLOTTESVILLE, VA 22905 SHEET LAYOUT SCALE: 1" = 100' 2� yw3�v J VA ENGINEER COLLINS ENGINEERING 200 GARRETT STREET, SUITE K CHARLOTTESVILLE, VA 22902 434.293.3719 ,M L2 I�l MUM DRIVE VICINITY MAP SCALE: 1" = 2000' Sheet List Table Sheet Number Sheet Title 1 COVER 2 EXISTING CONDITIONS & DEMOLITION PLAN 3 EROSION & SEDIMENT CONTROL NOTES, NARRATIVE & DETAILS 4 PHASE I EROSION & SEDIMENT CONTROL PLAN PHASE II EROSION & SEDIMENT CONTROL PLAN 6 PHASE III EROSION & SEDIMENT CONTROL PLAN (NEW) 7 PHASE IV EROSION & SEDIMENT CONTROL PLAN (NEW) O 1 & 9 STORMWATER MANAGEMENT PLAN 10 STORMWATER MANAGEMENT DETAILS 10 TOTAL SHEETS VSMP PLAN AMENDMENT #1: BELOW IS A SUMMARY OF THE PROPOSED REVISIONS TO THE APPROVED WPO 2oi600054 PLAN: ZLTHE ROAD AND LOT LAYOUTS WERE MODIFIED. THESE REVISIONS CAUSED A MINOR INCREASE IN THE PROPOSED LIMITS OF DISTURBANCE, HOWEVER THE SAME GENERAL DESIGN CONCEPT WAS MAINTAINED FOR EROSION & SEDIMENT CONTROL AND STORMWATER MANAGEMENT. ZLSHEETS 6 & 7 WERE ADDED TO THE SET OF PLANS TO REFLECT EROSION & SEDIMENT CONTROL PHASES III AND IV. LEGEND I EX/STING CULVERT CULVERT 0 DROP INLET & STRUCTURE NO. CURB CURB & GUTTER PROPOSED PAVEMENT EC-3A DITCH 6» DEPTH OF EC-3A DITCH EC-2 DITCH g" DEPTH OF EC-2 DITCH EARTH DITCH DRIVEWAY CULVERT + BENCH MARK _ _ _ _ _ CLEARING LIMITS T VDOT STANDARD STOP SIGN EXISTING CONTOUR 200 PROPOSED CONTOUR 20o 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 10/8/20 0 SCOTTLR. CbLLINSZ Lic. No. 035791,E P 9/3/20 w¢ O`S'Inhrn r. E�Gl 0 C� 1� M M Cn N M zCC LrN 0 o z W� N W w > w z J J LL] 0 O CC G W Q > O = U w LU z) Ul Q w z w 0 W O LL ry O O LL O N U w J U 0 w w a N IOB NO. 122071 SCALE AS SHOWN SHEET NO. 1 / 1 / I 1 IIII I I l _ / I I _ I / I I I I I i t I / 1 I I , , r/ /,, I I I I , I I I I I I I / / / I,/! I I t I I I I I I I I I III I I t - - ---- t ,_ /' \ TMP NUMBER OWNER ACREAGE ZONING DB/PG '� ' , 11II i ' ' , „', / ' /\\ \ \ \\ \ ' I I ' r I I I I I ' / , I I \ ` I I u 1 1 \ 1 I 1 1 t \ \ 1 ' - -'` A 02000-00-00-01900 WOODBRIAR ASSOCIATES 100.51 AC RURAL 690 232 zFi / / ,,/l, / , / \�� -I, l I I I I I / . . , / I I 1,\ 1 \ I 1 1'\\\�- _� "'\_.� -1- '�<-- \ ', , / / / / / ,/,- , / ,''--♦ ``\ \\ `\ \ `\ ` I I�;;I I l l , 1 / I /I /' ,'I / /I'11 I , I, I;; \ 1 \ ll, + f l i t �` ,y _ \ _ ` I ' -_ '>� - \ _ /O\�` --/ I/ I l f / /'/,//,I,/ iI/_``\ \\\```\` \\ `` i I I I I I iiIi , /// /',' , f' I '\ 1i I 1 , 11IIII1 I' \ t >• c q F t - \`--I�-_\ --- � \ / B 032GO-00-00-001AO WOODBRIAR ASSOCIATES 3.04 AC PRD /, \ \ \ \ \ , \ \ \ \\ _ I I' ! I II I , , , / / , / / / I , 1 I I I III 1 6 \ -1._/ r q l//, /l ll /'/ ' - I l l r l / 1 I 1 I S•%�i "4Yi' f tv AI $' - ,` -\ -- - C 032GO-07-00-04400 ROBERT BELL ORJESSICASWEENEY 0.11 AC PRD 1749/069 O-!� -' I �.+1//� /l// ''�/ / '/\` \\ \\ \ \ \ \ \\ / / /, l f 11I,,, / ' / / / / / / f 1I III � 11, 111 I 11\1\1t\\`\r\11\\\\\\\\\\\, +(IIII\I + II 11 1 �_--- `I I 1 / / // / '/, '/ / \`\ ` \\ \\`\`\`\ \ \ `\ ,/ / / , l I I I / , , , l j / / / ' , / / I I I l I , 1 \ \ \ I \ \ + \ \ \ \\ I II 1 1 �. 1 -- - - \ - - _ _' /, / / / , I 1I 1 1 o \ Il 1 \ + \ l\ \ \II\\ \ \ \ \ + \ \ \ t I D 032GO-07-00-04500 JIHAD AND AMREEN KASSAMALI 0.11 AC PRD 4949/294`g --- // / . I\\\\ b 1 l \ \ \\ I \ \ \ \ \1\ �`-III ~ -------->,o- SIC R. LLINS�\\ \ \ \ \ \ \ \ \ ` \ / / , / / / , / , , , / / / / / /' , / , , t \ I 1 \ \ \ , \ \ \ \ \ + \ `. \ ' \\r ' -'�� \ / i E 032G0 07 00 04600 THOMAS AND KATHY HYRE 0.09 AC PRD 1211/688 O I-'+ �, ��, �'///,,r/�/, � / / ,. \ \ \ \ . / / /r,/, / / / / / / / \ I I I I �ry II I \\ +\\\\\ \\\\+\1 \I+ 1-I 1 \t\ � G', - \ '\ ----- _ \ \ \ ` \ ` \ \ \ ` ` , , t 11 \ I \ \ I , \ I \ \ /` o _ ,- ' J 032G0 07-00-04700 DAVID GAYLORD 0.11 AC PRD 1346/659 Lic. No. 035791/1 ',✓ /// it, ,ill( f / ,' / / -_ , \ ` \ \ \ ` \ e \ \ \ \ \ \ \- II/ , / , l / / / ' , J ' / / / / / ,/ / , / / . / \ \ \ I I I I 1 \ \ \ \ \ I \ \ \ \ \ , \ , \ \ 1 \ / _ _ \ \ `_ / , , _ \ \ \ \ I \ \ \ \ \ / / / t I ' ' l / d „ / I / / / / I /' / I \ I[ I 1 ) I \ \ \ \ \ ` \ \ , \ \\ \ \ \ \ I \ \ ` / \ \ 4( '$. /' / / , 1 I I 1 I r-' ' ' ' ` ` \ \ ` \ \ ` \ ' ' ' ' ' ' ' ' ' / ' ' , 1'. i I I b - j I I Ili III \\ \\ \\ \ ` ` \ ` ` ` \ \ \ ` \ \ +' t NO o - o- K. \ _ _ I// .�II G 032G0-07-00-04800 MICHAEL AND KAI HERINE PEARL 0.10 AC PRD 4514/719 �0 9/3/20 w¢ / / + - \ \ , ` / / ' / 'i /' ,/ ' ' '' i 1i I w,, 11 I 1 \ \\ \\ \\\\\\ \\ \\'\ ` \ W,I_ / / / _ \\\`\ \ \ \\\\ //,// // i // / // \ ,/II % II1III \\\\ \\\,\\\`\ r 0�)o- N E y _ \, _ _ // / , r I ' I r / / / , - \, \ \ \ \ ` \ \ \ `` \ , \ , \- , / // _ ! , / / / ,' /' /' _ i1 1 I /I- I I I \ \ \ \ \ \ \ \ ` \ \ \ \ \ \ \ \ ` `\ / _ _ _ _ , / / I I I111 / I /' - \ \ \ \ \ \ \ \ \ \ - , - ' I / ,/ / / \ \ \ \ \ \ \\ / - %, /\ o 4 H 032G0 07 00 01800 JO DE ICK BU 0.08 AC PRD 4677 257 `5'IpNAL E��l --_ , / I I , I11 r , / ,' t ` \ \ \ \ `\ \ \ ` , , �P , / /' / ,/ /' , 1 1 h + �\ \ \ \ \\ \ \ \\ \ , \ \\ \`\\ , \ ` _ --- ' F /M __ N o �,' S1 5 �\ / i� - - I 032G0-07-00-01800 RODERICK BURTON 0.08 AC PRD 3640/217 _ / I I III / ' / ,' �1 1 \ \ \ \ \ \ / / / . ,' /' / /',/ i r I! \� I 11 11 \ \\ \\`\\\\ \\�\\ \\\ \`\;\,\ \\\\`\\\ \\a y-__ oy NO t. 6 3.. -880 ..E.. ' / , - - S 7 1111 I I _ / , , ' _ / 'I I 1 E _ \ b L J 032GO-07-00-02500 BRIARWOOD HOA 0.66 AC PRD 781/574 I I , , I / , -\ ` \ \ \ \ \ \ ` 0 MANAGED SLOPES - I / \ \ \ \ \, -C ` 2 o I 'ii'' ' r / ' ' 1 \ \ \ \ \ \ ` \ / ///,' ' r I / I I I \ `""\`: \, - _ -- \ ` § K 032GO-07-00-02400 ANGELAMAWYER 0.08AC PRD 4366/589 --azo--_ --' i I I I III ,I r i / / I \ \\ `\ \\ \\ \\ \\ `� `\`\. ',' � ,I �''I r /'-'i''i' / i i , �Q r I \ \ \ \ \�� l :`"\ ,l .`�" - ---- I -� .d_ - I I 0 ,,- :� I l , lIl / / / \ \ \ ` \ \ PRESERVED SLOPES I I / I \ \ \ \ \ \ \ - - _ I / - _ \ o m I L 032G0-07-00-06700 WILLIAM VEST 0.08AC PRD 3271/292 __----- ---' , , , `\ ` \ - - - \ ` \ II \t % N ;ter` 1 M 032G0-07-00-06800 KENNETH MCLEAN 0.08AC PRD 4949/525 \ i - -------- ---- ,'/'', I / l / I I / \ \ \ \ \\ /'/ / I' / / ' / / ��`'. I `� \\ \ , `\, \ \ .\` _ __ _- - - - \ \` / / / / l I I I I I / / / \ \ `\ B - \e - ,,\'' y z P q N 032G0 07 00 06900 ACHMED AND STEPHANIE CONTEH 0.09 AC PRD 4893/263 / ; / , / r / , / , , / \ \ \ \ \ . \ .\ -\_ -' / / ' /' ' , / / / 1 1! t \ I I , ' / ' �h ,/ \ , \ - " �_ _- - -' - , ._ / ` ` I fi ( 1 1 / / ?- ' ___ r / , / , , , , , , i ,/ ., \\ \\ \ - � / I \ I , � ,,'e `, ; ; I 1 11 \ I I I N ' I U 032G0 07 00 07000 DAWN AND WILLIAM EADIE 0.09 AC PRD 3389/062 '' ,/ , l , i l l ,l / `\ `\ `\ \ `\ `\ ` . ,_ --'-,' I' / ' ' / ' / / / / \ \ \ 1 ' , /' !- ' .\ I-_ \`'o . 54 E - ; ;; _ \' ` ` I I / I 1 1 1 - iI III I „ , , \ ` . / / / /' ,' / / /' , , \ \ . 11 I , 1 563 19 5_ _ _ _ \\ - i -� P 032GO-07-00-07100 KIMBERLY AND STEVEN GEER 0.09 AC PRD 1346/267 _ ///// '//I' 1 A A vII A VA , vvv I-. , //j'/ ' / ' ' ' ' ' / I ' ' / _ _-_- - \ 87° ' `, `, `\I ,' ' ' , -' / ' I' , ' � ' ' ,' I Q 032G0-07-00-07200 BERNARD AND TOMOKO MARSHALL 0.09 AC PRD 1949/179 L8t}.. 3 / / / l _ ,___-_-__ ,,,, , / , '-- - I /" - _ J I I-- - - _ ad , I R 032G0-07-00-07300 CYNTHIAKELLYLIVINGTRUST 0.09AC PRD 4362/633 ',' //, _-___ `\`\ I\\ \\ - _"'' - aoaob _ - I _ _ /' II I , � `^ ,_ ,` - 5 032GO-07-00-07400 GREGORY AND RENEE SAMPSON 0.09 AC PRD 1406/477 _-^___' ,/, // I I I / l I / \ \ \ \ --_-_ - - - , °° ' c, 1 1 1 I I //, - _ ___�-_-- - _ - _ - - - _ ' p / /' , Il -MI / I. ;�T 032G0-07-00-07500 THIEN AND TRUCVAN NGUYEN 0.09 AC PRD 1691/714 --"- _----'' / / -\ , / / I ` I. `\ / / /,,, ,"I I ,' I ,' ' --- -�__--__----_______- - ' - / I I ,' , , H P / - - J - I"/' \, / / , / ' ,' --\ \\ `\ \ ". ,//.. _ ,,, / , / , . /' --_ _-;____,_ - I" , I - _-_-- I l , m U 032GO-01-00-01700 LORENZOANDTONIARIVERS 0.10AC PRD 2266/297 a - ----- - - - ' -__/ / i V 032G0-01-00-01800 SUSAN CHAMBERS -ROSE 0.09 AC PRD 3551/264 _ - 6.260 _ - / / / / A O� - _ 5 / ' / / , /' / / / - / /' ! I 1 I `- °va, °° - - ---- - - W 032G0-01-00-01900 KEVIN HINES 0.09 AC PRD 3824/468 m , -_ '-- /-^I,' ,' %,' /' /' EXISTINGABOVEGROUND _---- - °a°I,° , /, /' ,I' /' l /' l / / I - / ____ -,- - -- „- - ,l / - - X 032G0-01-00-02000 ALLISONALLEN 0.09AC PRD 4031/345 v, W� ---- /„ /' /' /JJ 9ELECTRICALLINE ------------- oa °°° - '- --- / 3�a75' �•�4 W Z I , iq I I" --- - -- ob ooa_°__ --- / /,// ./ / ,'' I , i ,I ,I /",/ /' / - I- - ___ - � Y 032G0-01-00-02100 ETERNANDJANICEYANG 0.09AC PRD 2981/173 <¢_ I , /' ' ,' ' /0°9/' ' /_� oa,000a baaa�oa6eao°aa 7 ol.�J�� ,i �% ,'/'/'l// ,' /' '' / .✓' 1 , /I / / ,' / '' '//�/ _--- - \. -rw �- ,- I- , E 5 //,, / / � cJ X Z 032G0 Ol 00 02200 DEBRAH SHELOR 0.09 AC PRD 1825/128 uO 1 , / /.o / I _ ______/ A o0� O iii� /' / , / , j / / / ,' ,.' ,,/,I / I ' / ' / ,/ - i - 1� �' R I 1 H Z ' e°° 15 � _ _ _ L 0 6 0 AA 032G0-01-00-02300 CARRIE O'CONNOR OR LISA ANNE LACROI O.10 AC PRD 4836/744 '' //,' °o°°' ,' -- --- _-------- 5 I ,' ' / / l I /, - ,I ; / , ' r�, - - \.4 9 �1 - i BB 032G0-01-00-02400 MLATIBE SEIDOU 0.11AC PRD 4921/70 u /o ,_ S19 43 %% 63 ' /'',',/ ,',/ / Lu � ' / ' I ,/', / / / ' , I ' / / /' 6 \ J _ 6" 1 CC 032GO-01-00-02500 MOONJAKE,LLC 0.10AC PRD 4740/31 / '°$ - i'/ �/ / / _ DID 032G0-01-00-02600 ADAM AND JAYDA EVERETT 0.09 AC PRD 4326/667 I ' ' ° / ,' EE 032GO-01-00-02700 BRIAN AND DEBORAH STOLLINGS 0.10 AC PRD 1919/571 _ / i //�� -- / I w VEXISTING o 1 , /' / / ' / / .' / / TREELINE �� r FF 032G0 01 00 02800 JOHNSON AND ENGLISH LE 0.17 AC PRD 4689/530 ,'/1 '�-- °pa�a"p°�'' , ,'' /'' ,'' '' ��' ° I %� ��� lt���0 i�a°, ,-,.-/. , ,:' , ,i / ,'„' ,' ,' ,' ' / _ /' °d� ' ,' r / / A ,.v BB I. v\ U I i / GG 032G0-06-00-03300 JAY AND TIFFANY THOMAS AS 0.12 AC PRD 4741/634 LEASING, LLC II °op0aa°oo° , / , OO. -' pp --i Kll�/ 'ga°�'//',",/ ,/ ,' ,//,/ / ,'/',' ,' ///�'/, - �t8- 'r , / ' / ' " \ \ / ' / / HH 032G0-06-00-03200 11N AND IAE-AH $HIM 0.15 AC PRD 4718/395 °q // 0° - I _i, //// ,/,�,'//'/'' --- , ,' / , ,, ,I�'ii/ii ��rie ,' i I I ' l ,I/ \ / ' !, „ __ _ _ '_ II 032G0-06-00-03100 RONAND AND DAISY ROSARIO 0.12 AC PRD ,// - / / ,' O 0° I//, . , / /// , </�., "/', // , ' , , ,, 1 I ,//// «°` _ / / / / I a / ' v v _ _ ,_ ' 1I/ / , ''�/ til JJ 032G0-05-00-000AO WOODBRIARASSOCIATES 1.70AC PRD 1556/097 vv•`--------- '-'"/',',' ,' p,,' _ ,!�// i i / �,- - I/ i ' i rill., �' `v i i ,, ,/ ,, ., / r v v , rI ! i T-_- o°O 2G0-00-00-001R °�� KK 0320000-00006A0 WOODBRIARAS$OCATIES 2.02AC PRD 1556/097 ___ f , \\ ,// '/' /' D© r QGti'\\ I LL 03200-00-00-006R0 UNIVERSITY OFVIRGINIAFOUNDATION PDIP �� ' % TMP. _ ` _ - _ ' �,' y p° 3 4 "'�' f h�O\` c MM 03200-00-00-004AO THE SIDNEY M HECHT LIVING TRUST 15.39 AC RURAL 4373/572 \ - , ,, IATES -- - - OWNER: WOODBRIAR ASSOC ,' ,„' �•1`' / - -� NN 02000-00-00-19200 JOAN KINDIG 11.89AC RURAL 3785 265 C. N - ,� ' /'' /' - 9 ACREAGE: z7.35i4 AC (TOTAL) '�v `-,/' �`�''� ,�, �o. `v / _ o, °°° Iol .w 00 032G0-06-00-03400 DAWSON GREGORY & TAMARA DAWSON 0.16 PRD 4922/62rn �. - o_ _ In / � a I I ( PROJECT) CT) I / ) G , - ` Q� , I I 1 I _ I_ _ PP 032GO-06-00-03500 YU, TAEHO & YUNJOUNG CHOI 0.16 PRD 5154/435 ACREAGE: 16.i66 AC THIS PRO ® _ - v v '° ° I -/ � _ -- ' - - %o' o 'I I' ZONING. PRD r'I - O �� QQ 032G0-06-00-03600 KIM, DUHOI &CHANG HO SEO 0.16 PRD 5001/199 I— o`s , - `v �` v v v 1 I .n^--- v I I I , v v 1 - o° 1 1 1 1 _ A `v �L i w yI � RR 032G0-06-00-036A0 JOHNSON, WILLIAM H &JULIE D JOHNSON 0.16 PRD 4952/553 v <1 o / 5 5/ 7 ) ��m I - - , I , , � DB PG �z 6 6 - v �Q� - � �_ - I � /- � _ _ -- ,, t - o° V v v v - .ram v v __ 1 v v - - / v - �- _ - __ ' " v V v v A A \ o , i< / I V - - _ - - , , .Qr '/ ° ` v` v `, v ,Y v v - v '4 EXISTING FIRE HYDRANT ASSEMBLY 1v v, II 11 v vi - _ _ v p - A v- - I v v v p °v- , / V, , a ' /,- `v v I vv �v vv �` EXISTING DRIVEWAY TO BE' �� AND GATE VALVE TO REMAIN v , Y\I I 1 IC I_ / � / ', ` ` v v v _ _ v y,, °� / k'' --- v REMOVED y I 1 - _ I - v ` - __ v A / - 'v v I A I A A / - ��y , I - ` ____ " /,%.%l�r ///qbo°' // ,'/ /' ,// - -, v v `I. ' / / _--` ` o. 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I--, "" - I ����1 YV i V' v � � �---- �'i,//,I"/�I',)'/,•K/I' �.I ��Z�` -I,� ���. /1 +VA--���+\ �:.,�' -\ >. �` ,�v � \\ � \y- 1 v�vv`v�w vvv _ _ �, I I- \v'v ,'C II ,� - ;d1/1,/r//l1'lr I/I/',/�/ -�I� ''A - V \. 1 A \�y-"' \ v 'I V v� v- ,�, /v ` I �,vvIv, - g „r,,: -//, ,,,, .1 --11 'I , �. '� � 1 v v v �• _ vv v , SHEEP NO. __ V A\. V AV I. AA V%A K1� _ , _ ..-- _ _�'_\ , I__-_I-c �+%Y _ ,__r I � \ - ` I , A , " (IN FEET) v v I v �I �� IV ` -���- y 11 , 4 y -,' %A v lI �� -ate '1 \- \ / 2 p , I..I 1 A t II I A i yvI - �,. - _�I, � 3 � v �` M V- 1 inch = 60 ft. ' L' 1 V A \ 11 Ill' I I I , v`s,5, ,'- "a" _ GENERAL NOTES 1. THE OWNER/DEVELOPER OF THIS PROPERTY IS: WOODBRIAR ASSOCIATES P.O. BOX 5548 CHARLOTTESVILLE, VA 22905 2. THESE PLANS HAVE BEEN PREPARED BY: COLLINS ENGINEERING, INC 200 GARRETT STREET, SUITE K CHARLOTTESVILLE, VA 22902 TELEPHONE: (434) 293-3719 FACSIMILE: (434) 293-2813 3. SOURCE OF TOPO & SURVEY: BOUNDARY OF THE SITE WAS PROVIDED BY LINCOLN SURVEYING IN FEBRUARY, 2013. TOPOGRAPHY PROVIDED BY THE ENGINEERING GROUPIE FROM AERIAL FLOWN TOPO IN JANUARY, 2007. TOPOGRAPHY SURVEY WAS LATER UPDATED IN DECEMBER OF 2015 AND THE WINTER OF 2020. SITE WAS FIELD VERIFIED IN APRIL OF 2020. 4. ZONING: PRD 5. TAX MAP AND PARCEL NUMBER: TMP 32G-1R4 6. USGS DATUM: NAD 83 7. LOCATION/ADDRESS OF PROJECT: SUNSET DRIVE PROJECT AREA: TOTAL TMP AREA=27.351 ACRES; THIS PLAN'S AREA=16.166 ACRES 8. SITE PHASING: CONSTRUCTION TO OCCUR IN ONE PHASE 9. PUBLIC UTILITIES: NO CONNECTIONS PROPOSED WITH THIS PLAN * COLLINS ENGINEERING SHALL NOT HAVE AUTHORITY OVER CONTRACTOR'S WORK, SAFETY PRECAUTIONS, SCHEDULES, OR COMPLIANCE WITH LAWS AND REGULATIONS. WE SHALL NOT ASSUME RESPONSIBILITY FOR ANY CONSTRUCTION STARTED PRIOR TO PLAN APPROVAL. EROSION &a SEDIMENT CONTROL MEASURES: STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF THE FOLLOWING: 301 SAFETY FENCE." A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY WRRIE OF P07ENTIAL ACCESS BY THE PUBLIC. J.02 CONSTRUC77ON ENTRANCE: A STABILIZED PAVED CONSTRUC77ON ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUCT70N SITE. TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT 7RANSPORTED ONTO PUBLIC ROADWAYS. 3.05 SILT FENCE: A TEMPORARY SEDIMENT BARRIER CONSIS77NG OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPOR77NG POSTS AND ENTRENCHED TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCT701V OPERAT70NS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND LOW-TO-MODERATF LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE WRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 3.07 STORM DRAIN INLET PROTECTION: A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. INLET PROTECTION APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERA77ONAL BEFORE PERMANENT STABILIZA77ON OF THE CORRESPONDING DISTURBED DRAINAGE AREA. 3.09 TEMPORARY DIVERSION DIKE." A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET. TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORM WATER RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON SITE DURING CONSTRUC770N. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE. 3.14 TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET" AND `DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING DRAINAGE AREA IS EQUAL TO OR GREATER THAN THREE ACRES THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR THE CONS7RUCT70N OF A TEMPORARY IMPOUNDMENT. 3.18 OUTLET PROTECTION: STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS. TO PREVENT SCOUR AT STORMWATER OUTLETS, TO PROTECT 7HE OUTLET STRUCTURE, AND TO MINIMIZE THE P07EN77AL FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMWATR FLOWS APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL SECTIONS. 3.19 RIPRAP: A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE W/7H FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT 7HE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE P07EN77AL FOR INFILTRATION AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND THE SOIL CONDITIONS WATER 7URBUL£NCE AND VELOCITY EXPECTED VEGETA7VE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS. 3.31 TEMPORARY SEEDING: 7HE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTA7ON BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PR07EC77ON TO BARE SOILS EXPOSED DURING CONSTRUCTION UN77L PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 3.32 PERMANENT STABILIZATION: THE ESTABLISHMENT OF PERENNIAL VEGETA7VE COVER ON DISTURBED AREAS BY PLAN77NG SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS TO PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER 7HAT IS EC GtiiiCAL, ADAPTABLE TO DTTE CGNOiTGNS, ArvD ALLVrYJ OELECTiOV Vf 7HE MVJT APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NA7URAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTIVITIES ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 3.38 TREE PRESERVAT70N AND PROTECTION: PROTECT70N OF DESIRABLE TREES FROM MECHANICAL OR 07HER INJURY DURING LAND DISTURBING AND CONSTRUCT70N ACTIVITY. TO ENSURE 7HE SURVIVAL OF DESIRABLE TREES WHERE THEY MLL BE EFFEC77VE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PR07FCT70N, LANDSCAPE BEAUTIFICA77ON, DUST AND POLLUT70N CONTROL, NOISE REDUCTION, SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN 7REE-INHABITED AREAS SUBJECT TO LAND DISTURBING AC77W77ES. 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOL177ON AND CONS7RUCT70N AC7T1477ES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH. SOIL DESCRIPTIONS 16- CHEWACLASILTLOAM -o%TO2%SLOPES SOIL CONSISTS OF VERY DEEP, SOMEWHAT POORLY DRAINED SOILS IN RIVER VALLEYS, SURFACE RUNOFFIS NEGLIGIBLETO LOW WITH MODERATE PERMEABILITY. iqB- CULLENLOAM -2%TO7%SLOPES . SOIL IS VERY DEEP, VERY FINE, AND WELL -DRAINED WITH MODERATE PERMEABILITY. FORMED IN RESIDUUM FROM MIXED MAFIC AND FELSIC CRYSTALLINE ROCKS. SOIL LOCATED ON UPLAND RIDGETOPS AND SIDE SLOPES OF THE PIEDMONT PLATEAU. 47D- LOUISBURG SANDY LOAM -iS%TO25%SLOPES. SOIL IS VERY DEEP, VERY FINE, AND WELL -DRAINED WITH RAPID PERMEABILITY. FORMED IN MATERIAL WEATHERED FROM FELSIC IGNEOUS AND METAMORPHIC ROCK. SOIL LOCATED ON SUMMITS AND SIDE SLOPES OF THE PIEDMONT UPLANDS, 47E- LOU ISBURGSANDYLOAM -25%TO45%SLOPIES. SOIL IS VERY DEEP, VERY FINE, AND WELL -DRAINED WITH RAPID PERMEABILITY. FORMED IN MATERIAL WEATHERED FROM FELSIC IGNEOUS AND METAMORPHIC ROCK. SOIL LOCATED ON SUMMITS AND SIDE SLOPES OFTHE PIEDMONT UPLANDS. EROSION CONTROL NOTES ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ES-J.-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. ES-5-PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY 77-IE PLAN APPROVING AUTHORITY. ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLA77ON OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. ES-7.-ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL 77MES DURING LAND DISTURBING AC771/I77ES AND DURING SI7E DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. ES-8: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED WATER FILTERING DEVICE. 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 CONTROL NOTES 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION 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 PLAN 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 LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER 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 AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, 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. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY FREE OF ROOTS STUMPS WOOD RUBBISH AND OTHER DEBRIS. 1Z 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. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:00AM TO 9:OOPM. 15. BORROW FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL SUPPORT OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS AND DAMAGE TO ANY PUBLIC STREET BECAUSE 0 SLIDES SINKING OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL MAINTAIN REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND. MULCHING. SEEDING IS TO BE AT 75 LBS/ ACRE AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS 100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 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 180LBS/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 MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION WHEN MEASURES ARE NO LONGER NEEDED SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE DATE OF APPROVAL. (WATER PROTECTION ORDINANCE SECTION 17-204G.) 22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9) MONTHS AFTER THE DATE THE LAND DISTURBING ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE SECTION 17-207B) Paved construction entranee for erosion mntrol Plans -70' MIN. -045TRUCnoh, ' _F55 S 3M-3= =5+N41 10P CWPS[ rERSTING sr 2a I PAVEMENT �c�-- `- 6' uN 2'A ACG"o:WtE BASE PROFILE •JN4 20' MIN. -MSTFitICrXIR ,SPINET PAVED •G:E55 WASRACK EXISTING I 11 2X PAVEMENTS FM 2% 12' M.. URANAiE •MuS Exr'EIW ruu WF�TN �:! TO SEDIMENT OF INCRI AND OX011 1`_POS1VVE TRAPPPIG Orncr OPEFUrq.4 tPi�. iuv[ ahuNace TO SE000ENT ?; IR INC DEVICE SECTION A -A l F,uuulgw, wale lap of 1 mch nuwl Iw eblxOnl wrtb a nwmnmu I wib bap. ock Inrto6 saN a .Ilppbulx a wash Iws< wTtll a .halnda s4 1 1 udnluate . nFL,TaM Vtosme \Pu:llwdn unlst ba sued awac 6omtlM anb:mu la Wt .ggnooeJ senWte W ea to Ieuor<see4nmt All xeWuan •ha0 be pinmlM bow nncws yaw,h AaL-. Anahc:: oI wataunu en PAVED WASH RACK No SCA:.F DESCRIPTION OF EROSION & SEDIMENT CONTROL MEASURES: EROSION AND SEDIMENT CONTROL MEASURES: IT IS ANTICIPATED THAT A CONSTRUCTION ENTRANCE, TEMPORARY DIVERSION BERMS, RIGHT OF WAY DIVERSION, A SEDIMENT BASIN, OUTLET PROTECTION, INLET PROTECTION, AND SILT FENCE WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE ON SITE AND SHALL BE STABILIZED WITH A TEMPORARY VEGETATIVE COVER. PERMANENT SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE CONSTRUCTION ACTIVITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. 3.01 SAFETY FENCE - SAFETY FENCE WILL BE INSTALLED AROUND THE PROPOSED SEDIMENT BASIN. 3.02 CONSTRUCTION ENTRANCE - ONE CONSTRUCTION ENTRANCE SHALL BE INSTALLED AT SUNSET AVENUE EXTENDED. THIS WILL BE THE ONLY POINT OF INGRESS AND EGRESS TO THE SITE. CARE WILL BE TAKEN TO PROTECT ADJACENT ROADWAYS FROM TRANSFER OF SEDIMENT. 3.05 SILT FENCE- SILT FENCE WILL BE PLACED ON THE DOWNSTREAM SIDE OF DISTURBANCE WHERE NOTED ON THE PLANS. 3.07 STORM DRAIN INLET PROTECTION- IP WILL BE INSTALLED ON EACH PROPOSED INLET AS SHOWN ON THE PLANS. 3.09 TEMPORARY DIVERSION DIKE- DIVERSION DIKES WILL BE USED AROUND THE PERIMETER OF SITE DISTURBANCE WHERE SHOWN ON THE PLANS TO DIRECT RUNOFF TO ON -SITE SEDIMENT CONTROL FACILITIES. 3.14 TEMPORARY SEDIMENT BASIN- TEMPORARY SEDIMENT BASINS WILL BE INSTALLED WHERE SHOWN ON THE PLANS. 3.18 OUTLET PROTECTION- TO BE PROVIDED AT THE OUTFALL OF DRAINAGE PIPES WHERE SHOWN ON PLANS. 3.19 RIPRAP- RIPRAP SHALL BE INSTALLED AS OUTLET PROTECTION WHERE SHOWN ON THE PLANS. 3.31 TEMPORARY SEEDING- TEMPORARY SEEDING SHALL BE APPLIED WHERE SHOWN ON THE PLANS. 3.32 PERMANENT SEEDING- PERMANENTLY SEEDING SHALL BE APPLIED WHERE SHOWN ON THE PLANS. 3.38 TREE PRESERVATION AND PROTECTION- TREE PRESERVATION FENCING SHALL BE INSTALLED WHERE SHOWN ON THE PLANS. NO TREES SHALL BE HARMED OUTSIDE OF THE LIMITS OF TREE PROTECTION FENCING. 3.39 DUST CONTROL- DUST CONTROL SHALL BE APPLIED THROUGHOUT THE SITE WHERE SHOWN ON THE PLANS. ST ORMWATER MANAGEMENT: STORMWATER RUNOFF QUANTITY WILL BE TREATED WITH TWO LEVEL I BIORETENTION BASINS WITH DOWNSTREAM DETENTION. SEE STORMWATER MANAGEMENT PLAN SHEETS. MAINTENANCE: IN GENERAL, DURING CONSTRUCTION THE RLD OR CONTRACTOR ON -SITE WILL CHECK ALL EROSION AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH SIGNIFICANT RAINFALL. MONITORING REPORTS WILL BE REQUIRED FROM THE RLD IF NEEDED. SPECIFIC ATTENTION WILL BE GIVEN TO THE FOLLOWING ITEMS: a.SEDIMENT BASINS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. b.ALL INLET PROTECTION AND GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT THE GRAVEL WILL BE REMOVED AND CLEANED OR IT WILL BE REPLACED. c.ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO THE TOP OF THE BARRIER. d.ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD OR CONTRACTOR ON -SITE. THE CONTRACTOR WILL BE DETERMINED AT THE TIME THE CONTRACT IS AWARDED. IN ADDITION THE DEVELOPER MAY BE CONTACTED. UPON COMPLETION OF THE PROJECT THE OWNER WILL BE RESPONSIBLE FOR SITE MAINTENANCE. 3.001 SAFETY FENCE PERSPECTIVE VIEW PERSPECTIVE VIEW PLASTIC FENCE Source! Adapted from Comved Plastics and VDOT Road and Bridnc Standards a PERSPECTIVE VIEW METAL FENCE Raw 3.01-1 La EROSION CONTROL NOTES & NARRATIVE PURPOSE: ZA THE PURPOSE OF THIS LAND -DISTURBING ACTIVITY IS TO GRADE THE SITE FOR THE PHA jEYf} pEVELOPMENT IN THE BRIARWOOD SUBDIVISION. THE TOTAL ACREAGE TO BE DISTURBED WITH THIS PLAN IS 5( 97 jACRES. EXISTING SITE CONDITIONS: u� THE EXISTING SITE IS A VACANT, WOODED, HILLY PARCEL. THE SITE IS GENERALLY WELL DRAINED WITH PRESERVED AND MANAGED STEEP SLOPES. EROSION AND SEDIMENT CONTROL MEASURES HAVE BEEN DESIGNED TO CONFORM TO THE EXISTING SITE SLOPE AND PROTECT THE PERIMETER STREAMS AND ADJACENT PROPERTIES. ADJACENT AREAS: THE SITE IS POSITIONED SOUTH AND EAST OF DICKERSON ROAD AND WEST OF THE EXISTING HUMMINGBIRD LANE SUBDIVISION. IT IS BORDERED BY THE NORTH FORK OF THE RIVANNA RIVER TO THE SOUTH. 0 - L! IS U AN 5 PR POS D, UT I LI I D 0 PU LIC I HT -OF -WAYS, PUBLIC EASEMENTS Q AND TMP 32G-0128 (ONLY AFTER WRITTEN DOCUMENTATION PERMITTING DISTANCES IS PROVIDED). MANAGED AND PRESERVED STEEP SLOPES TO BE IMPACTED. STREAMS AND BUFFERS TO BE PROTECTED. WOODLAND PRESERVATION AREAS TO BE MAINTAINED AND PROTECTED WITH TREE PROTECTION FENCING. SOILS: SEE SOILS BOUNDARIES ON THE EROSION AND SEDIMENT CONTROL PLAN SHEET, AND DESCRIPTIONS ON THIS SHEET. SEQUENCE OF CONSTRUCTION: 1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. 2. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. 3. CONTRACTOR SHALL IDENTIFY THE LIMITS OF DISTURBANCE AND INSTALL TREE PROTECTION FENCING WHERE INDICATED ON THE PLANS BEFORE ANY SITE DISTURBANCE SHALL TAKE PLACE. CONTRACTOR SHALL ENSURE THAT TREES TO BE SAVED ARE FLAGGED ALONG THE LIMITS OF CLEARING AND PROTECTED. 4. INSTALL THE PAVED CONSTRUCTION ENTRANCE WITH WASH RACK AS SHOWN ON THE PLANS. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. INSTALL THE WASH RACK UPHILL FROM THE PROPOSED SEDIMENT BASIN. ACSA WILL DETERMINE THE APPROPRIATE METHOD OF SUPPLYING THE WASH RACK. PARKING AND CONSTRUCTION ENTRANCE AREAS SHALL BE CLEARED OF ALL VEGETATION, ROOTS, OR OTHER OBJECTIONABLE MATERIALS BEFORE CONSTRUCTION ROAD STABILIZATION IS INSTALLED. 5. CONTRACTOR DOES NOT HAVE PERMISSION TO CLEAR CUT THE SITE PRIOR TO INSTALLING THE PERIMETER MEASURES AS SHOWN ON THE E&S PLAN. CONTRACTOR SHALL EXPEDITE INSTALLATION OF THE PERIMETER EROSION AND SEDIMENT CONTROL MEASURES AND PROTECT THE SITE WITH THE LEAST AMOUNT OF TREE REMOVAL NECESSARY TO INSTALL THESE MEASURES. INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE PHASE I EROSION CONTROL PLAN SHEET. THIS INCLUDES THE SEDIMENT BASINS, SILT FENCE, AND DIVERSION BERMS. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, BERMS, AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 6. INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE I EROSION CONTROL PLAN. 7. ONCE ALL THE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE PHASE I EROSION CONTROL PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR CAN BEGIN GRADING OPERATIONS. SEDIMENT CONTROL PLAN. 10. ONCE ALL THE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE PHASE II EROSION CONTROL PLAN AND THE SITE HAS BEEN ROUGH GRADED TO THE EXTENT SHOWN IN ESC PHASE II, THE CONTRACTOR CAN REQUEST PERMISSION FROM THE COUNTY INSPECTOR TO PROCEED TO ESC PHASE III. 11. UPON OBTAINING PERMISSION FROM THE COUNTY INSPECTOR TO PROCEED TO ESC PHASE III, THE CONTRACTOR CAN EXPAND THE LIMITS OF DISTURBANCE, ROUGH GRADE THE LOTS & ROAD AND FINE GRADE THE FILL EMBANKMENT. AT THE TIME OF THE EMBANKMENT's FINE GRADING THE CONTRACTOR SHALL ALSO INSTALL THE PERMANENT RETAINING WALLS. ONCE THE EMBANKMENT HAS BEEN FINE GRADED, THE CONTRACTOR SHALL INSTALL A TEMPORARY DIVERSION BERM AT THE TOP OF THE FILL SLOPE TO REDUCE THE RISK OF ROAD & LOT RUNOFF FLOWING DOWN THE EMBANKMENT. 12, THE CONTRACTOR SHALL THEN INSTALL THE PROPOSED STORM SEWER RELOCATION. THE DROP INLETS SHALL BE BOARDED UP TO PREVENT SEDIMENT FROM ENTERING THE SYSTEM, ALLOWING THE STORM SEWER TO SERVE AS A CLEAN WATER BYPASS.THE INLETS SHALL BE BOARDED UP IMMEDIATELY FOLLOWING CONSTRUCTION. 13. FOLLOWING THE INSTALLATION OF THE STORM SEWER RELOCATION THE CONTRACTOR SHALL INSTALL 2 SEDIMENT BASIN 3. SEDIMENT BASIN 3's FOOTPRINT SHALL BE POSITIONED OUTSIDE THE LIMITS OF THE FOUNDATIONS FOR THE HOMES PROPOSED IN LOTS 132 & 133 AS SHOWN ON THE ESC PHASE III PLAN. THE CONTRACTOR SHALL ROUGH GRADE THE LOTS AND ROAD SUCH THAT RUNOFF ENTERS SEDIMENT BASIN #3, AS SHOWN ON THE ESC PHASE III PLAN. 9. CONTRACTOR SHALL INSTALL ANY REMAINING ESC CONTROL MEASURES SHOWN ON THE PHASE III EROSION & SEDIMENT CONTROL PLAN. 10. ONCE THE FILL EMBANKMENT HAS BEEN FINE GRADED & STABILIZED, THE RETAINING WALLS HAVE BEEN INSTALLED, THE BOARDED UP STORM SEWER RELOCATION HAS BEEN CONSTRUCTED AND THE LOTS AND RDA HAVE BEEN ROUGH GRADED TO THE POINT WHERE SEDIMENT BASIN #3's PRESENCE IS HINDERING THE FINAL FINE GRADING OF THE LOTS AND THE ROAD THE CONTRACTOR CAN PROCEED TO ESC PHASE IV. AT THIS TIME TEMPORARY SEDIMENT BASIN #3 CAN BE REMOVED. THE CONTRACTOR SHALL NOT PROCEED TO ESC PHASE IV AND SHALL NOT REMOVE SEDIMENT BASIN #3 WITHOUT PRIOR APPROVAL FROM THE ESC INSPECTOR. 11. IN ESC PHASE IV, THE CONTRACTOR SHALL COMPLETE THE ROUGH GRADING OF THE SITE AND THE ROAD. A THIS TIME THE CONTRACTOR SHALL ALSO INSTALL THE REMAINING STORM SEWER STRUCTURES AND UTILITIES. THE CONTRACTOR SHALL INSTALL INLET PROTECTION IMMEDIATELY FOLLOWING THE INSTALLATION OF ANY DROP INLETS. THE BOARDED UP INLETS INSTALLED IN ESC PHASE III CAN BE ACTIVATED IN ESC PHASE IV. THESE INLETS, IN ADDITION TO THE OTHER PROPOSED INLETS, SHALL RECEIVE TREATMENT VIA INLET PROTECTIONS. 12. ONCE THE LOTS AND ROAD ARE ROUGH GRADED, THE CONTRACTOR CAN INSTALL THE ROAD's CURB AND SUBBASE. THE CONTRACTOR MAY ELECT TO DELAY THE INSTALLATION OF THE ASPHALT'S TOP COAT TO REDUCE THE RISK OF PAVEMENT DAMAGE. 13. FOLLOWING THE ROAD's CONSTRUCTION, THE CONTRACTOR SHALL INSTALL THE SIDEWALK. 14. THE CONTRACTOR SHALL INSTALL ANY REMAINING ESC CONTROL MEASURES SHOWN ON THE PHASE IV EROSION & SEDIMENT CONTROL PLAN. 15. ONCE THE SITE IS FULLY STABILIZED, AND T E DOINTRACTOR RECEIVIES PRjIOjR APPROVAL F E S INSPECTOR, SEDIMENT BASINS #1 & #2 SH 16 TH 0 H T H C T C P O S PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 17. ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN CONVERT THE SEDIMENT BASINS TO THE PERMANENT STORMWATER MANAGEMENT FACILITIES. NO E&S ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. 18. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 19. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. SH, SLI TABLE 331-B ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS -QUICK REFERENCE FOR ALL REGIONS' Rate BLEW a Dates Species bs. acre Sept. 1- Feb. 15 50150 Mix of Annual Ryegrass (Lolfurt multi-Borum) & 50 - 100 Cereal (Winter) Rye (Secale cemalel Feb. 16 - Apr. 30 Annual Ryegrass 60 - 100 (Lolium multi -Gomm) May i - Aug 31 German Millet 50 (&taria italira) Source: Va. DSWC TOTAL LBS GENERAL SLOPE (3:1 OR LESS) PER ACRE KENTUCKY 31 FESCUE 128 LBS. RED TOP GRASS 2 LBS. SEASONAL NURSE CROP 20 LBS. SEASONAL NURSE CROP 150 LBS FEBRUARY 16 THROUGH APRIL ANNUAL RYE MAY 1 THROUGH AUGUST 15 ('OXTAIL MILLET AUGUST 16 THROUGH OCTOBER ANNUAL RYE NOVEMBER THROUGH FEBRUARY 15 WINTER RYE NOES: 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35, OPS PERMANENT SEEDING SCHEDULE NO SCALE (STD. & SPEC. 3.32 OF VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK, 3RD ED.) FENCING AND ARMORING v b-e f11,, FENCE �I a III I �I� IIII VI 1111� i,I y I I I I>A• © I� :. s� CORRECT•a -i1 I �N Y / A!7LL r am aa- CORRECT TRUNK ARMORING TRIANGULAR • a FENCE TABLE 3.39-A ADHESIVES USED FOR DUST CONTROL Water Application Dilution Type of Rate Adhesive (Adhesive: Water) Norzle Gallo Acre Anionic Asphalt Emulsion 7:1 Coarse Spray 1,200 Latex Emulsion 125:1 Fine Spray 235 Resin in Water 4:1 Fine Spray 300 Acrylic Emulsion (Non -Traffic) 7:1 Coarse Spray 450 Acrylic Emulsion (Traffic) 33:1 Coarse Spray 350 Source: Va. DSWC ATTACHFO.TERFABRIC TOSTAKESORP05TS& ENTENDITINTO TREND DENSTAKE ' POST 'TH=SWIN. E ICAVATED5 BACKFILLEDA COMPACTED SIL T FENCE 8(WITHOUT WIRE SUPPORT) 3.05-2 NO SCALE P •SLOPES, NE-4TECTIVE COVERINGS MAY BE APPLIED ACROSS THE SLOPE. .1WHERE THERE IS A BERMBRING THE MATERIAL P VER THE BERM ••II �II II II _____ ___ _ TERMINATIbo THE INSTALLATION, TURN THE END UNDER 4 AND STAPLE AT 12 INTERVALS. IN DITCHES APPLY PROTECTIVE COVERING PARALLEL f0 THE DIRECTION OF FLOW. USE CHECK SLOTS AS REQUIRED. AVOID JOINING MATERIAL IN THE CENTER OF THE DITCH IF AT ALL POSSIBLE. BERM ANNCRItD ANCHOR - - I- I- I�T-T I _I�iT�i�l PRSTECONGPCVEEARALLEL TO THE DIRECTION OF FLOW AND ANCHOR SECURELY. BIM SOIL STABILIZATION BLANKET NOTE. TREATMENT2 SOIL STABILIZAT70N MATTING MATERIAL SHALL BE INSTALLED AS NOSCALE REQUESTED BY THE ALBEMARLE COUNTY EROSION CONTROL INSPECTOR `H W w tJ SCOTTTR. C$LLINS'? Lic. No. 035791,E A 9/3/20 ,4j CD N M 'a Ul z J J 0 U M M M N d" M I N O N N Q LU J J W LU Q U I LU U) LU LU U) w V O N r� 1 z LU 0 z LU z 0- 0- 1 LU 2 0 0 0 Q ALL W LU Q Q z 0 z 0 U LU G F1 0 LU 06 z 0 1� 0 LU JOB NO. 122071 SCALE N/A SHEET NO. 3 NOTE: TOTAL LIMITS OF DISTURBANCE i APPROVED WITH WPO 2o1600054 F TP - - / / / = 3.9z ACRES. / // 6�' / ` _ - SCOTT R. LLINS� MANAGED SLOPES / / � / U Lic. No. 035791 p O / SF ,/ �/ /' 0 PRESERVED SLOPES 9/3/20 f� EROSION & SEDIMENT CONTROL PHASES I & II -- - - - �`66 - /cl - /' \ \ \ \ LIMITS OF DISTURBANCE (TYP.) — - 468- �SSIONAL I ��\ \ \ \ \ \ O PROPOSED LIMITS OF CLEARING (TYP.)OR O / ♦ / — / / / / / \ c, @ ♦ DID ♦ �1 It �' / / ` /� / v v �� ♦ 4�SOIL DESCRIPTION (TYP.) - Sell � I ♦� \ /! ° / / / I \ \ \ +® PROPOSED DIVERSION BERM. ® CONTRACTOR SHALL ENSURE ^�♦ ♦ LOCATION OF ♦ ;IPOSITIVE SLOPE MAINTAINED, ♦ w� - 00 I FUELING AREA ,�. i \ I TP 18' BERM PROVIDED. BERM ♦♦♦ 0 DID SHALL BE STABILIZED AS AFIRST STEP IN DISTURBANCE ♦♦♦♦ o o LOCATION OF •• ♦ ' / / �� DUMPSTER -- �� / 1 17l" EXISTING ♦Ln ISTING PRESERVED ♦ L-� E 0 ,. ♦♦ ESC PHASE I ` -. \. o EEP SLOPES (TYP.) 4*4 rN U N ■ ■ ■ ■ / .. \ I / \ \ \ Z ' ♦ SBi DA=o.68 AC. ,1® �� 0 z O ® TC=1o.5 MIN. ® DRAIN AGE �.\ \ \ TP '' Y / \\\ O /// � T o \ \ SEE SHEET FOR SBi A \ \ \ i > ._O° DESIGN INFORMATION �� +4� EXISTING TREELINE (TYP.) W \\ �/♦ �w I PROPOSED ° LOCATION OF ♦ STOCKPILE SBl P PORT -A -POTTY v v v Op � ♦ AREA SHALL BE �Q ■ SURROUNDED ♦ BY SILT FENCE V A V 'ramp ♦� \ I 1 x ry• ��~fir DD \ j �SOILLINE (TYP.) ,_�- ♦♦ �� '� iFLOW DIRECTION ARROW (TYP.) ��� off' ♦ SF ♦® \ $ / 4z ®� 1 \ �� ♦ // r --v v v ESC PHASE I vv yv A ( \� \ 1\ �\ t �\ � vv v ®♦fit♦®��,u ♦ // /'' �v vv SB2DA=434AC. v y v v�v v I �, \, 1 • PROPOSED DIVERSION BERM. / CONTRACTOR SHALL ENSURE// "\ \\ \\ Cw=o.35 \\ \\ \\ \\\\\ \\\\.\I'.12'x7o'MIN. CE1, / I \ POSBERM PROVIDED. A ERIMED r�/ / \\ Tr-11.5 MIN. \ \ \\ \\ \ \ \\\ \\ \\ \ \\\ \ \\\\ \ SHALL BE STABILIZED ASAy \V A \\ A \ A\\\ \ \\\ \\ \ \ VAAA�� / M Lu SF FIRST STEP IN DISTURBANCE / M _ 4oS000000� 15 4111, O_ / // �� y v v v y` v v v v / M Lu �_U ---- \\O �. ♦♦ /♦ /�♦�`� � ��\\� \ \ \ \\ \\ \I l/ / -_,�� �\�\\ \ \�\\\ 1 \ \ \ ♦ice --/ / � N Z Q d ♦♦♦ F 40 v v\ \\\\ \ !/ // \\ v\y\V �\ V 1 o / / N W v Op �o ■■ \v AV A A\ \\ \ / /� �� vvv A re v Op TP ti titi �ti \ V A V AA \\ I W v F �dv0 DC v r \ v ova ao / / I 00 \ p \ ��� Db/ k°� v�o� y w 01 I"_ W cp v O ab` / t 406 d(�♦ 'sz III / V i / P L9 o t I l V G �--� V A 404 SEE SHEET 8 FOR SBz _ V O ���1 / Paz.. DESIGN INFORMATION _ ,.� TP �� AAA.A I A �/' �y �� \'��� / Q LL.I / 1 �' z \ o / - -- / /\ - Q U 0*6 _ 99 - _ _ \ _ PROPOSED LIMITS OF CLEARING (TYP.) O O VG — / \ UJCn -- / LIMITS OF DISTURBANCE (TYP.) - �% „ V / W I _ o W Lu � (n 1� ♦, / � J I / — I I I ■ I I W �' Q p 1 I I I r U)EXISTING O y P AGED / ♦ — ON ZONE TYP. STEEP SLOPES (TYP.) / Lu ♦� a STATE DAM INUNDATI /' ♦♦ <� — � —� JOp a I I I I I I I I � / i-- - Q I �I I I I I I I I I I 1, ♦ _ _ __ I ,� � (.� Q i, ♦ PL `v �; oI � 1, I I I I I II � I ! I� � I I♦ ' I I __ \V PROPERTY LINE (TYP.)— a U) V 1 I hHIC tiC1�LF� \ 1 1 � i� _ ♦i� I I roe No. 30 0 15 \ 30 60 A 1 \ 120 ` 3_ I I moor x• 1 22071 i i 1 \ C R11 ' ��■ SCALE �� r I A SHEET NO. 4 NOTE: TOTAL LIMITS OF DISTURBANCE APPROVED WITH WPO 2o1600054 � TP // ��� ( I & II) = 3.92ACRES. MANAGED SLOPES SF ! > ! / PRESERVED SLOPES \ / � _ / - EROSION &SEDIMENT CONTROL PHASES I & II '� � / _ — \ \ \ \ \ \ " PROPOSED LIMITS OF CLEARING (TYP) LIMITS OF DISTURBANCE (TYP.) .) � O 1 PROPOSED DIVERSION BERM. CONTRACTOR SHALL ENSURE i45 @ POSITIVE SLOPE MAINTAINED, 18" BERM PROVIDED. BERM '1 • • I I I ♦�)L V1 \ \ / / ! SHALL BE STABILIZED AS A . - DD • / Iwo I / I �' / / ' V A \ FIRST STEP IN DISTURBANCE ®� • r I IV•� LOCATION OF /// i ♦ \ / PS � � � - FUELING AREA � � \ � ♦ /' / i' n � A � TP DID .S LOCATION OF y.♦� - - o DUMPSTER Q, Q / / • � �'� EXISTING PRESERVED ♦ O �®: 1 LOCATION OF STEEP SLOPES (TYP.) �� � � � � \ � / \ ° PORT -A -POTTY a U, EXISTING TREELINE (TYPJ - \ Q. 4So i O TS ESC PHASE II y /♦ \ SB-i DA2.79 AC. o\\ TP j SEE SHEET 8FOR SBi , ♦%-� _ /\ --- .O DESIGN INFORMATION �♦ �� '... � CW=0.45 - • �� \�- - �;10 / Tc=13 MIN. — v �\ — v 11�0� (D - 4.,l� V • A V A `? PROPOSED DC • �J �� ` \ \ \ � J V/ m 0z N / W 47 SCOTT/R. Cl7LLINS7 Lic. No. 035791 ,� P 9/3/20w4 \o �Sl Onrnt. EEC'` SBl STOCKPILE �V j O �• AREA SHALL BE SURROUNDED o ♦ BY SILT FENCE •- \ \ a TS • y c� ,-.y DD �. ,, / FLOW DIRECTION ARROW (TYP.) , SF star -Job O � �® �� �_: DRAINAGE DIVIDE (TYP J I \ -, a ♦ / \� ®Ps10 42 lop I Q �•� :,� • 0 C 46 ••1� 12'X70' M N. CE \ • �v v O) � I 1 Al L9 T__11 yv SF v ��s TS C. C�46S00� 600G�6�bb�� O \ - \ _ _ _ i' `PROPOSED DIVERSION BERM. ® PS o — — _ _ - i i CONTRACTOR SHALL ENSURE — POSITIVE SLOPE MAINTAINED, 430 18" BERM PROVIDED. BERM O 0 SHALL BE STABILIZED AS A FIRST STEP IN DISTURBANCE vO o DID A \ O V 1 \ ti 404 v EO�SF v a s \ O r, NOTE: SLOPES STEEPER THAN 3:2 D \ n SHALL BE PLANTED W/ JUNIPER O� / - I � \ r � V @ ' \ fir' JD 406 '� �' ♦♦�ZO \ O A '04 SEE SHEET 8 FOR SB2 �0? DESIGN INFORMATION _ i l 0 .� v O v - O O -,O SF \\ U I o I a STATE DAM BREAK �INUNDATION ZONE, TYP lO O O c � d, \\ @ , d N vO 0 O co w +' / C Z •® SF Q Lu SB-2 DA=2.22 AC.TS • �� � _ o �� Q Cw=o. o / r Q �-PN III J I- TC=9. MIN. �� •®pvv �/ / P �� A�-� Z Z w - F- w i L9 0 nyyvv ti �- G Lu TP SF PSG �✓ v z 06 / PROPOSED LIMITS OF CLEARING (TYP.) ` - - ��� Y l0 O % / ' • \p \ / / ! �• 4�• 1 H w 0 LIMITS OF DISTURBANCE (TYP.) V / D rQ _ (n W / /♦♦ ' " _ 1 LLl �' w • I' I II II♦�♦♦ ! / / �, I Z I I l l ♦ / I O a EXISTING MANAGED / ♦♦/' / W - STEEP SLOPES (TYP.) !� _ n _ I_--- Q ♦♦ - 1 �i/ Q / ♦ ♦ - - � I I I I ♦/ S F- I �--� r�� O 1--1 1 • ♦ - PL N *• � I q I �' i I . i I co PROPERTY LINE (TYP.) u U) � I vCrR 1hHIC tiC' lLE v • -412 2�-f"•� I _ \V JOB NO. 30 0 15 30 60 120 1 I x, _��____�— — A 122071 — "SCALE ' SHEET NO. v �� v v� v y vv y v y-�1�1��__, - 11 5 , 00090Ob0b��60d� / // / ^/—,. �T 450 _ NOTE: TOTAL LIMITS OF DISTURBANCE ASSOCIATED WITH THIS DEVELOPMENT=5.79 ac. (3.92 ac. WERE PREVIOUSLY PERMITTED WITH WPO 2o1600054) CONTRACTOR SHALL INSTALL FINAL �� % 458- c - / i qQ EMBANKMENT GRADES & FINAL RETAINING i - 68 _ p \\I —�'�� 4 EROSION &SEDIMENT CONTROL 47 SCOTT/R. Cl7I Lic. No. 035791 ,� P 9/3/20�4 �o �Sl Onrnt. E��` - - - - - i \ % WALLS WITH ESC PHASE III AS SHOWN. / $ - sj - PHASES III & IV LIMITS OF PRESERVED STEE -- — t 478SLOPES TYP. _ / 0 / DISTURBANCE, TOTAL AREA=5Jg ac. / MANAGED SLOPES - - - J / / o > �� ! !' _ /' j 4go (3.9z ac. PREVIOUSLY PERMITTED) / oo482 0 PRESERVED SLOPES - / / o / :� ■ h ♦� / i� - / ♦♦ 482 i ��♦♦ CONTRACTOR SHALL INSTALL A BERM, AS - ' /� �♦ i �� /7 / / / / /i APPROVED WPO 2oi600054 �� ♦� SHOWN, ATTHE TOP OFTHE FILL ESC PHASES I & II LIMITS OF ♦ EMBANKMENT. BERM TO REDUCE THE RISK OF _ i ♦ / ♦ / OO O DISTURBANCE, TYP. - �. o / ROAD & LOT RUNOFF DURING CONSTRUCTION / i A ♦ / � FLOWING DOWN THE EMBANKMENT. dlw � / �� ♦�*� Ib�� i �a - v ///���7///�F��° -- -� k/ / / \ Ln ESC PHASE III SB- DA- 3.21 ac. 3 / k IN ESC PHASE IIITHE CONTRACTORS �° � a � , HALL INSTALL THE y.i i • PROPOSED STORM SEWER RELOCATION. THE DROP INLETS SHALL BE BOARDED UP TO PREVENT SEDIMENT �ti' / i / i ! .4@1 LLi FROM ENTERING THE SYSTEM, ALLOWING THE STORM @o v ■ ♦ �"� .� SEWER TO SERVE AS A C EAN WATER BYPASS. L �♦ �1�cpV 1 / EROSION & SEDIMENT CONTROL PHASES �- \� \ III & IV LIMITS OF DISTURBANCE _ _ p\14, �i \ ° a°cQ +� . ♦ .♦ p COINCIDES WITH PROPERTY LINE o ESC H S III SB- A �V A V A A = . �� v �� ` � � / � / DA=o. i ♦ I�� " \ \ \ 1 I 1 \ � CRS PROPOSED CONTRACTOR O � 4 ♦♦ \ \ Q PARKING&STAGING AREA S �% p ♦ ♦♦ - V A \ce LOCATION OF DUMPSTER �* �� A O q4 SF ° o • \ ` \ \\ THE FUELING TANK SHALL BE COMPLETELY SURROUNDED BY A z' DEEP, z' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE LINING. THE LOCATION OF DOUBLE PROPOSED BERM SHALL CONTAIN FUEL IN THE EVENT OF A SPILL. WALLED FUELING TANK CONTRACTOR SHALL ENSURE BERM VOLUME IS lo% LARGER THAN THE - Z \ -POTTIES MAXIMUM VOLUME OF STORED FUEL. CONTRACTOR MAY ELECTTO PROPOSED STR. 446. CONTRACTOR SHALL DELAI� F "�� ` \ LOCATION OF PORTAUTILIZE AN OPEN TOP DUMPSTER IN LIEU OFTHE EARTHEN BERM. \ INSTALLING THE UPPER PORTION OF THE MH-i & ITS FRAME a LOCATION OF RAIN GAUGE O° \ : SB & COVER, ALLOWING FOR THE MANHOLE's 048" BASE TO _ " \\ \ \\ \ ■ \ SERVE AS A RISER. RISER RIM DURING CONSTRUCTION \ ♦ - f=474.5o'. THE DOWNSTREAM 024" PIPES SHALL SERVE AS \ \ O o' ♦ - THE BARREL & CONVEY THE CLEAN WATER.__ o �'- SBi ♦ _480— s^ 1zX7o MIN. ■ \ \ L _ PROPO ED BA�CFLES Fs �r ♦♦ram ��� l L9 O� Q o v - ♦ 473 \ E ♦ ` \ \ \ t-I Cl \ \ qa A ♦ ♦ vv ♦ ♦ ♦♦�■ �■ ♦ �.� IP whoe�— v v o' �® ♦♦ ♦ ♦ �47uj 8 ♦♦ v s �' ��\ �� N I ♦ P IPOSED S)3 TO BE LOCATED U SID - A ���� ■ 1 V TP��,♦� THE FOOTPRINTS OFTHE BUILDINGS FOR---, \� \ �� I �� , ■ V A N ®� LOTS 232 & 133, AS SHOWN. 46o A 490 ♦ V ■ - - / V O Z x y. 48y v �, v \\ �, �� vv \ N W d O 440 �� \ \ V A \ VV �� ��� �� IP ♦ \ J 438 �_ �. \ \ \ \ \ \ \ \ \\ / \ 0 G \ CONTRACTOR SHALL INSTALL FINAL W \ ♦♦ \ \\ \\ \ �\ ■ ♦ \ > J ,Q EMBANKMENT GRADES& FINAL RETAINING v \ v v v v v --- �� .� �� /- / WALLS WITH ESC PHASE III, AS SHOWN. SF 430 �� �� \ A \ \ \ �� _ - - - - _ V / w CO)Lu o- --\ r 4zO DA=o.6 ac. 4 \ 4 ��� y \\ �. r _--� V \ \ V�\xjA\\\ 1\V ♦ / / / 0 _ o o ESC HASE III SB-z sy Sy \ \ \ \ Lr- W -- - \\ � � _ �� V I I I � I �) l / / // % � � U `� \ \ \ hCONTRACTOR SHALL INSTALL A BERM, ASO SHOWN, ATTHETOPOFTHE FILL W EMBANKMENT. BERM TO REDUCE THE RISK OF f �ui _ O \ @ o �o�� A B / ROAD & LOT RUNOFF DURING CONSTRUCTION o V \ o d ` FLOWING DOWN THE EMBANKMENT. i♦ i' ` W ul rjrj0 6 W G W vv O o00���do� �� ��v �� � W °kp z 0� Lf) C) Q -- V -� ° ° - �6'- G _ d \ \ O 3,96 O SF - \k \ 1 1 APPROVED VAPO zoz600054 I 1 w \ - ®�' � _ �, � o - � \ V I� ESC PHASES I & II LIMITS OF � \ v 0� �� 1 1 1 V A DISTURBANCE, TYP. I � o a 1 ■ "— - /< 1 _ �, \ F _III III _ ��■ _ tO 1 1 Q — _ I r I I -- I� - _ o � � / i I O � � o -oo ■■■■ ■ 3�1 STATE DAM BREAK TP �, �� MANAGED STEE i ♦ w F J a LOPES, TYP. o INUNDATION ZONE, TYP. I I �` \ � � SL — -■� _ -— I I I I I I I I � i r � ♦ i i �� / / �__ __.. i JOB NO. PROPOSED SWM FOREST ■ / �I ♦ - 122071 GR-WHIC �('!\LE & OPEN SPACE ESMT, TYP. I i SFSCALE 30 0 15 30 60 120 0'cl,I 1 \V 111 O 11 Llgry I I I cb SH O. \' I I I I Intl; = il1 II. V 1 1 1 1� I I I �� I I II I II 1 I I \ V— \ — I� �l " 3 t i V.J -u - - - - NOTE. TOTAL LIMITS OF DISTURBANCE ASSOCIATED 00 - - ° - E °°� / _ ___�b��°�°-°° _ _ � WITH THIS DEVELOPMENT 5.79 ac (3.92 ac WERE - - - - /' ' � °%" j j �x PREVIOUSLY PERMITTED WITH WPO 2o1600cI54) 450 - SCOTT R. LLINS�Z U Lic. No. 035791 I / "o / /i i / / / / / /� — 0�0 9/3/20 �4 458 �41(, - - / / o j _ - _ _ -_ EROSION & SEDIMENT CONTROL NAL - - - - - 7 / \ - - - g % \ \k - PHASES III & IV LIMITS OF PRESERVED STEEP ��- 4 P SLOPES TYP. _ ' DISTURBANCE, TOTAL AREA=5.79 ac. 0 3 MANAGED SLOPES. _ / - IP / / ._ (.g2 ac. PREVIOUSLY PERMITTED) / oo i // ���iii; TP PRESERVED SLOPES - / a / /x APPROVED WPO 2oi600054 o /. ESCPHASES I&II LIMITS OF i � �5� DISTURBANCE, TYP. _ _ �/� u� / / � / � g � / / � / f \ / r r /j / / / f I uj Oo Q v QQU EROSION & SEDIMENT CONTROL PHASES � _g \ \ q` III & IV LIMITS OF DISTURBANCE f' \ COINCIDES WITH PROPERTY LINE c� PROPOSED CONTRACTOR \ PARKING & STAGING AREA � vI �w _ A V I 3 LOCATION OF DUMPSTER " ! / Do o / o % _ THE FUELING TANK SHALL BE COMPLET00 ELY SURROUNDED BY A 2' DEEP, - - -�� o SF / o \ y�va '� _ _ ^H V A z' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE LINING. THE - - A / _a• LOCATION OF DOUBLE PROPOSED BERM SHALL CONTAIN FUEL IN THE EVENT OF A SPILL. - rn 0 / ` 446 i -� \ \ "'` "` '' / WALLED FUELING TANK CONTRACTOR SHALL ENSURE BERM VOLUME IS lo% LARGER THAN THE / / \ LOCATION OF PORTA-POTTIES MAXIMUM VOLUME OF STORED FUEL. CONTRACTOR MAY ELECT TO \ \ F / / o V A s \ *� \� LOCATION OF RAIN GAUGE UTILIZE AN OPEN TOP DUMPSTER IN LIEU OF THE EARTHEN BERM. v V 0 482 v IP 12'X70' MIN.,' O7 / �+ v \ sQ 88 v C E ro ` \ \ Tl co 478 — — • TP / / �4titi 46C --� 490 o \\ \\VA � 0\\v \ �\ \ � �\ \ "�v\ \ O� Q 4 W N w OL 45° V w� A v v- V A V / b I / Q Q / aQ�66�-06DO02SD4-66600 s \\ \ \ ' J / 44° v O i--T— — -- ado vv v v vvvv�� � — � / IP � I /t� v�ZO / - - - \ 86 / ---- --- \ o - _ s \ P W - r ` Y \ Lu � oCb ZS �'� O 1 v S F I � Q�Y r up ui \ \ boo , — T3�2 \ \ d ob o a i \ - / / /ul W _ . . \ Jv \ +// . _ - _ OQ " - 6 b�Cb 40 / / I N x � W / I N � ^^ Lu L.L �. I rn v a \ - , r o I IP , \ 0 0 \ _ @ o \ k \ APPROVED WPO zol600 I x. � � � 1 O Jo54 \ —/ W I \ �' - o \ ESC PHASES I & II LIMITS OF Z \ ` \ �.� — o 1 \ 1\ ©� i`. 10 y S+ o �� f DISTURBANCE, TYP. 1 - _ I - J Q . . . . . . . . . . . . - - - ��, ---- I — / O L..L /� I w oI I I I l i l � ;l I P I \ \.STATE DAM BREAK TP MANAGED STEE - w \ . I _. w \ INUNDATION ZONE TYP. \ \ \ \ \. { i i SLOPES, TYP. / - - / / +� - al _ a to . / — _ — ' I I, 'I - °a - JOB NO. PROPOSED SWM FOREST L 2Z \ I (-- v �vv � I I I I I f I I I � � _ A \ / _ 1 �71 j I I , \ I � \ GIB PHIC SCALE \\ \ \ \ \ ( & OPEN SPACE ESMT TYP. - _ -_ C 30 \ \ \ 6 i5 _ sa .\ . 60 . . 120 \ J I I S F ` - SCALE \ \ / 1 � 1 = 30 o �d 1 -- \\ I _ I4 non Ja Et.' v �v �� V — -- V v v A© o I I v v A _ 0�3 AMENDED SEDIMENT, BASIN #3 (PHASE III) � v 4S- O _, PROPOSED STIR. 446. CONTRACTOR SHALL Co� '" �� � QELAY INSTALLING THE UPPER PORTION OF THE CO- MH"" & ITS FRAME & COVER, ALLOWING FOR THE MANHOLE's 048" BASE TO SERVE AS A RISER. RISER RIM DURING CONSTRUCTION 474-50. PROPOSED BAFFLES ` \ THE DOWNSTREAM 024" PIPES SHALL SERVE AS HE BARREL& CONVEY THE CLEAN WATER. 473 \ 478 Sediment Basin #3 (PHASE III) Design drainage area (acres) 3.21 basin Volumes: (using 2' contour intervals) elevation (ft) contour area (sf) volume (cy) 468.00 988.0 0 470.00 1301.0 84.5 472.00 1643.0 193.3 473.00 3540.0 287.1 474.00 4009.0 426.8 476.00 5022.0 760.5 478.00 6134.0 1173.0 wet storage: wet storage required (cy) (67*DA) 215.1 dewatering orifice elevation (ft) 472.23 wet storage provided at this elevation (cy) 215.1 available volume before cleanout (cy) (34*DA) 109.1 cleanout elevation (ft) 470.42 distance from cleanout to orifice (ft) (> V) 1.8 dry storage: dry storage required (cy) (67*DA) 215.1 principle spillway crest (ft) 474.50 dry storage provided at this elevation (cy) 295.1 diameter of dewatering orifice (in) 8.0 diameter of flexible tubing (in) (orifice+2') 10.0 runoff: C (use 0.45 for bare earth) 0.45 tc (min) 10 12yr 4.10 Q 2yr 5.92 1 25yr 6.00 Q 25yr 9.53 principle spillway: available head (ft) 1.00 diameter riser (in) 48 spillway capacity, Qp (cfs) 9.53 diameter trash rack (in) 72 barrel length (ft) 86.12 head on barrel through embankment (ft) 3.97 diameter of barrel (in) 24 MW. 1' WI SPILLWAY 2' WITHOUT CREST OF EMERGENCY SPILLWAY DESIGN HIGH WATER (25-YFL STORM ELEV.) O.S. MN. 1.0' ------- ------ RISER CREST ORY ' STORAGE DEWATERING oeACE WET ' STORAGE SET}MENT CLEANC R POINT (• VIET" STORAGE p EDUCED TO C design high water (ft) 475.50 top of dam (ft) 478.00 top width of dam (ft) 10.0 bottom of basin (ft) 468.0 approx bottom dimensions: 28'x4Z upstream face slope: 2:1 downstream face slope: 2:1 baffles: YES length of flow, L (ft) 25 effective Width, We (ft) 170 L / We (baffles not required if > 2) 0.1 collars: YES depth of water at spillway crest (ft) 6.50 slope of upstream face (Z 1) 2:1 slope of barrel (Sb) 0.0453 % length of barrel in saturated zone (Ls) 39.07 number collars required 2 dimension of collars 4.0' x 4.0' emergency spillway: NO required capacity (Q25-Qp) (cfs) 0.00 bottom Width (ft) N/A slope of exist channel (fUft) WA IN, minimun length of exit channel (ft) WA crest of spillway (ft) WA Sediment Basin #1 Sediment Basin #2 Sediment Basin #3 Area, ac. Area, ac. Area, ac. Erosion & Sediment Control Phase 1 0.68 4.34 Erosion & Sediment Control Phase II 2.79 2.22 - Erosion & Sediment Control Phase 111 0.41 0.67 3.21 SEDIMENT BASIN BAFFLE DETAIL NO SCAL E SHEETS OF 4'x8'x$' EXTERIOR PLYWOODOR EQUIVALENT I I I I I I I I I RISER CREST ELEVATION I I I 4' I I I I I POSTS MIN. SIZE 4" SQUARE OR 5" ROUND. SET AT LEAST 3' INTO THE GROUND 8' FLOW i A Sediment Basin #1 Design MIN. r WISPILLWAY Y WITHOUT CREST OF EMERGENCY SPILLWAY drainage area (acres) 2.86 DESIGN HIGH WATER basin volumes: (using 2 contour intervals) (25-YR. STORM ELV.) elevation (ft) contour area (so volume (cy) 0.5• 418.00 740.0 0 MN. 1.0' _ _ 420.00 1568.0 83.6 RISER CREST 422.00 2590.0 236.0 ' DRY. STORAGE DDIEM¢ NG 424.00 3747.0 469.4 WET * STORAGE 426.00 5205.0 799.5 „Tn SEDIMENT CLEANOUT POINT (' WET ' STORAGE REWCED TO 34 C.Y./ ACRE) wet storage: wet storage required (cy) (67*DA) 191.6 design high water (ft) 424.50 dewatering orifice elevation (ft) 421.42 top of dam (ft) 425.00 wet storage provided at this elevation (cy) 191.6 top Wdth of dam (ft) 10.0 available volume before cleanout (cy) (34*DA) 97.2 bottom of basin (ft) 418.0 cleanout elevation (ft) 420.16 approx bottom dimensions: 19'x74' distance from cleanout to orifice (ft) (> V) 1.3 upstream face slope: 2:1 downstream face slope: 3:1 dry storage: dry storage required (cy) (67*DA) 191.6 baffles: NO principle spillway crest (ft) 423.50 length of flow, L (ft) 90 dry storage provided at this elevation (cy) 219.4 effective width, We (ft) 38 diameter of dewatering orifice (in) 4.0 L / We (baffles not required if > 2) 2.4 diameter of flexible tubing (in) (orifice+2") 6.0 collars: YES runoff: depth of water at spillway crest (ft) 5.50 C (use 0.45 for bare earth) 0.45 slope of upstream face (Z 1) 2:1 to (min) 13 slope of barrel (Sb) 0.75 % 12yr 3.70 Q 2yr 4.76 length of barrel in saturated zone (Ls) 34.02 1 25yr 6.20 Q 25yr 7.98 number collars required 2 dimension of collars 3.7' x 3.7' Principle spillway: available head (ft) 2.50 emergency spillway: YES diameter riser (in) 30 required capacity (Q25-0p) (cfs) 3.22 spillway capacity, Qp (cfs) 4.76 bottom width (ft) 25 diameter trash rack (in) 42 slope of exist channel (fUft) 15.0 % barrel length (ft) 68 minimun length of exit channel (ft) 10 head on barrel through embankment (ft) 9.01 crest of spillway (ft) 424.50 diameter of barrel in 15 Sediment Basin #2 (PHASE Q Design drainage area (acres) 4.34 basin volumes: (using 2' contour intervals) elevation (ft) contour area (so volume (cy) 404.00 3073.0 0 406.00 4103.0 264.9 408.00 5251.0 610.4 410.00 6508.0 1045.1 wet storage: wet storage required (cy) (67*DA) dewatering orifice elevation (ft) wet storage provided at this elevation (cy) available volume before cleanout (cy) (34*DA) cleanout elevation (ft) distance from cleanout to orifice (ft) (> 1') dry storage: dry storage required (cy) (67*DA) principle spillway crest (ft) dry storage provided at this elevation (cy) diameter of dewatering orifice (in) diameter of flexible tubing (in) (orifice+2") runoff: C (use 0.45 for bare earth) tc (min) 12yr 4.00 Q 2yr 125yr 6.60 Q 25yr principle spillway_ available head (ft) diameter riser (in) spillway capacity, Qp (cfs) diameter trash rack (in) barrel length (ft) head on barrel through embankment (ft) diameter of barrel (in) 290.8 406.15 290.8 147.6 405.10 1.05 290.8 407.90 301.9 4.0 6.0 0.35 11.5 6.08 10.03 2.10 30 6.08 42 48 5.76 15 Sediment Basin #2 (PHASE II) Design drainage area (acres) 2.12 basin volumes: (using Z contour intervals) elevation (ft) contour area (so volume (cy) 404.00 1140.0 0 406.00 1985.0 114.3 408.00 2942.0 295.6 410.00 3999.0 551.7 wet storage: wet storage required (cy) (67*DA) dewatering orifice elevation (ft) wet storage provided at this elevation (cy) available volume before cleanout (cy) (34*DA) cleanout elevation (ft) distance from cleanout to orifice (ft) (> 1') dry storage: dry storage required (cy) (67*DA) principle spilway crest (ft) dry storage provided at this elevation (cy) diameter of dewatering orifice (in) diameter of flexible tubing (in) (orifice+2") runoff: C (use 0.45 for bare earth) tc (min) 12yr 4.30 Q 2yr 125yr 7.00 Q 25yr Principle spilMa�T:. available head (ft) diameter riser (in) spillway capacity, Qp (cfs) diameter trash rack (in) barrel length (ft) head on barrel through embankment (ft) diameter of barrel (in) 142.0 406.31 142.0 72.1 405.24 1.1 142.0 407.90 144.8 4.0 6.0 0.4 9.5 3.65 5.94 210 30 3.65 42 48 5.76 15 MINA-WISPILLWAY CREST OF EMERGENCY Y WITNOUT�SPILLWAY NIGH WATER STORM ELEV.) DRY, STORAGE WEr ' STORAGE TTT SEDIMENT CIFANOUT PRINT (' WET ' STORAGE REDUCED TO 34 C.Y./ ACRE) design high water (ft) top of dam (ft) top width of dam (ft) bottom of basin (ft) approx. bottom dimensions: upstream face slope: downstream face slope: baffles: length of flow, L (ft) effective width, We (ft) L / We (baffles not required if > 2) collars: depth of water at spiAvay crest (ft) slope of upstream face (Z 1) slope of barrel (Sb) length of barrel in saturated zone (Ls) number collars required dimension of collars emergency spillway: required capacity (025-Qp) (cfs) bottomwidth (ft) slope of exist channel (fUft) minimun length of exit channel (ft) crest of spilway (ft) RISER CREST DOEEMC�D R 408.90 410.00 10.0 404.0 38'x95' 2:1 3:1 YES 67 77 0.9 YES 3.90 2:1 0.75 IN, 24.12 2 3.2' x 3.2' YES 3.95 25 15.0 % 10 408.90 MN.,WI SPILLWAY CREST OF EMERGENCY WITHOUT SPILLWAY DESIGN HIGH WATER (25-YR. STORM ELEV.) Ds --- - MIN. TO. I-- RSER CREST DRY ' STORAGE pEWATEPoNC DEMCE WET * STORAGE SE CNT CLEANOUT POINT (•TO A STORAGER EWCED design high water (ft) top of dam (ft) top width of dam (ft) bottom of basin (ft) approx bottom dimensions: upstream face slope: downstream face slope: baffles: length of flow, L (ft) effective width, We (ft) L / We (baffles not required if > 2) collars: depth of water at spillway crest (ft) slope of upstream face (Z 1) slope of barrel (Sb) length of barrel in saturated zone (Ls) number collars required dimension of collars emergency spillway: required capacity (Q25-Qp) (cfs) bottom width (ft) slope of exist channel (fUft) minimun length of exit channel (ft) crest of spilway (ft) 408.90 410.00 10.0 404.0 21'x89' 21 3:1 YES 54 56 1.0 YES 3.90 21 0.75 % 24.12 2 3.2' x 3.2' YES 2.29 25 15.0 % 10 408.90 ` �APPRZJVED SED I ASIN #2 (PHASE I) 40 C �40 404 ` APPROVED BAFFLE S + 401 0000' + 40 \ 0 0 0 08 APPROVED 30" CL. III RCP STANDPIPE W/ O 9 TRASHRACK SHALLSERVE AS THE RISER_ STRUCTURE. RISER RIM ELEV.=407.90' 6L:0 J ' \ APPROVED D.5" CL. III RCP BARREL W/ VDOT STD. EW i - (48 LF, INV. IN=403.50', INV. OUT=403.14) \� \ \ AMENDED 2 'WIDE VDOT CL. IPRAP (; 1 _ - \ �02 CREST ELEV.=408.90' \k APPROVED VDOT #3COARSE AGGREGATE: OUTLI \ PROTECTION W/GEOTEXTILEFILTER FABRIC a UNDERLAYMENT(L=iz W=6', D=z' MIN.)\ ` 'o 'I + a ,PPROVED SEDIMENT- ASIN #2 (PHASE II)� a + 0 lA06 APPROVE - 404 - - �6OObb000) o \ a 00,6 41 - 4 \000 0004 89 o00 \+ 408 � w 089 APPROVED 30" CL. III RCP STANDPIPE W/ 0 "TRASH RACK SHALLSERVE AS THE RISER_ STRUCTURE. RISER RIM ELEV.=407.g0' 0�-0-0 _ APPROVED 15" CL.III RCP BARREL- W/ VDOT STD. EW-i - (48 LF, INV. IN=403.50', INV. OUT=403.10 4 AMENDED 2 'WIDE VD T CL. IPRAP q \+ b CRESTELEV.=4o8.go' \� APPROVED VDOT #3 COARSE AGGREGATE OUTLET a - - PROTECTION W/ GEOTEXTILE FILTER FABRIC' \ (a UNDERLAYMENT (L=12', W=6', D=2' MIN.) 4a6 SCOTT/R. 17t7LLINSZI Lic. No. 035791 L_ 9/3/20 PA &IOnrAT. E '� CD N M rn L91� ti Z4t 0) M Cn N _ M z d' N LU Q U-) O J W N z N W LLJ W ? Q as W J QLU J W O L9O �- ref J Z V 1 = > o U ' z W Y w w W Q ~ w Q V) ~ = z ZW C) ® Ln Cl) O LU W O w of LL Q ® p N N U w J U O w w 0- Ln JOB NO. 122071 SCALE 11IOE SHEET NO. 8 rKC-UCVCLUYI,ICIN I J�I=IVHKIU IJI,HLC Ur J. =0U J DA A & B Existing Impervious Areas (Water Quantity) Existing Residences 5,350 sf Existing Driveway to TMP 32G-01-28 1,300 sf Total Pre -Development Impervious Areas (Water Quality) (Limits Defined by the ESC Limits of Disturbance) Existing Driveway to TMP 32G-01-28 1,300 sf Existing Roads 6,600 sf ;:, - Existing Roads 6,600 sf Existing Sidewalk 100 sf ' ) /' \ " - Existing Sidewalk 100 sf 13,350 sf Tc- MIN. 0.10 hrs. 8,000 sf 100' OF OLF w/ L ELEV 34' .(Tc=0.07hfs.) �.\ �� `130' OF CF w/ A ELEV =20`^,I / / - / I I / �I >� ♦♦ �i �� (Tc-0.01hrs) �' w i ' i r l ' ♦ 1 I I 1 / l l ,4I ♦♦ ��1�N��= i i i I 7 r 1 �. ♦ r I at 0 ONES son oil. o. >'� �`�., Tc- 012 hrs. ■ I 100"017OLF w/ A ELEV,=12' ' ■7/ (Tc-,0,11hrs.) & --' i'? - �� I DAC(OFF ;I \\ I I� 1 1 ■ I rl 1 I 1 1, . 350' OF CF.'w/-4 ELEV.=66���_'-V A v ■ 1 j .LOCATION OF I 496 ac 1 I \ I \ 1 �� ■ L t _ (Tc=0.01 hrs.) PROPOSED SWM P.Y 1. I / A 1 A v i V ■ / A' Sc=o.i4 hrs.. 1 I 1 �'� I ■ [ / // 1 FACILITY'A' I. PRE-DEV. DAA&B \ • '� ��� �--- \''Y<\ \ Ilt� 11 CN=36.2 \ ���-yi IAA I • v \ q 1 Tc=o.22hrs. �r I v. A �! " 1 A v A • V A A \ Tc= MIN. 0.16 hrs. ♦ v / 100' OF OLF w/ A ELEV.=6' (Tc-0.14 hrs.) & 1 J Tc= 011 hrs.. \ �\ 260OF OF w ' Tc-0.02 hrs. 'LOCATION OF ' / A ELEV.=19( ) NATURAL-- 7 .. PROPOSED SWM 100' OF OLF w A ELEV.-v T I \ o LOW � n •� FA ILITY'B' '(fc o =O.TOhrs.. & o '�o `'comes 320' OF CF"w/ A ELEV. 7 ' �,_v.., 0 �Ir1� �"\ -\\ •� \ ROPOSED ESC LIMITS OF DISTURBANCE BOUNDARY LINATURAL ��1 • J3 DEFINES THE VRRM WATER QUALITY BOUNDARY. ' COW " .' �S. \ \I t\\,1\\I,i / I TOTAL ESC LIMITS OF DISTURBANCE AREA=5.79 ac.'\ B , too -YEAR • • _ / FLOODPLAIN. ® - ��. \\i II : C i 1 // .•« a\ //// �� . _ (TYP.) ®. _ I � MANAGED 5TEEP�*I 1 SLOPES YP. ' - - / R ) ♦ I I 1 ♦ Nt _ � / PRESERVED STEEP c � .\ ■ 1 � I II L I_, � 1 \ `� � SLOPES (TYPJ 1■ 11 1��1-11 Ilr �� !•\�\_` -=r- ,�� MANAGED SLOPES ,. ■ I' \ -_/ - PRESERVED SLOPES _ � �. n;;,. '- � �■■■I!-1, i ill -ate III el➢ I 4[ � � \/' `i II \ �/ \ \t/ _ - I WATERSHED SUMMARY (For Onsite Areas Only & the Energy Balance Computations) Pre -Development Post -Development Area, 1-year 2-year 10-year Area, 1-year 2-year 10-year CN CN ac. Flow, cfs Flow, cfs Flow, cfs ac. Flow, cfs Flow, cfs Flow, cfs 72.7 3.86 0.10 0.18 11.53 DAA & B 59.0 4.70 1.21 2.99 9.93 62.1 0.84 0.10 0.12 0.17 70.8 4.70 0.20 0.30 11.70 WATERSHED SUMMARY (For Basin Capacity / 100-year Freeboard Check only) Area, 100-year Backwater Freeboard During CN ac. Elev., ft 100-yr Design Storm 3.86 Post-Dev. DA A+ DA C 72.7 424.97 1.03' 4.76 76.1 8.62 SWM FOREST & OPEN SPACE EASEMENT (SCALE OF 1"=80') E \ Y. l YY \ l 1 i I .\ / o rr I \ i / 3 o \ / P SED SWM ROPO \ / / o. FOREST& OPEN SPACE III.. IY -/ / _ EASEMENT, TYR. 1 C o I a i _ w I \ I I 1 - rll \ i i I I I I 1 / I / 1 'I PROPOSED SWM FOREST& OPEN SPACE EASEMENT=5.36 ac. EASEMENT TO SERVE AS A BEST MANAGEMENT PRRLTICE & \ L - I .PROHIBITS FUTURE DEVELOPMENT& -- I DISTURBANCES WITHIN`IT. \;�\ 1© _- PROPOSED LIMITS OF 1 \\ 1 DISTURBANCE IS L I \\'s OUTSIDE THE LIMITS �l I OFTHE PROPOSED i SWM FOREST&OPEN i I � R SPACE ESMT TYP. i I \ I I --- I I I \ {r I \ IQ, f \ - f \ I 1 V PROPOSED SWM FOREST & OPEN . SPACE EASEM ENT COI N C IDES _ \ a ,IPIIIIIIIIj#Ij lij ljll III ��`,y'-- �I IIIS II , \ I WITH THE PROPERjY LINE- �. I I' u:1 U 1\ - A ' f IJ J.J J A POST -DEVELOPMENT SCENARIO (SCALE OF 1"=80') DA A Post -Development Impervious Areas (Water Quantity) Total Post -Development Impervious Areas (Water Quality) Proposed Road Improvements 14,925 sf - (Limits Defined by the ESC Limits of Disturbance) Existing Roads to Remain 1,975 sf Proposed Road Improvements 14,925 sf Existing Residences 5,350 sf Proposed Lot Improvements 28,990 sf Proposed Lot Improvements 26,760 sf Proposed Driveway Improvements to TMP 32G-I 900 sf M Proposed Driveway Improvements to TP 32G-I 900 sf �� r .♦ _r ♦ Proposed Sidewalk Improvements 3,100 sf Proposed Sidewalk Improvements 3,100 sf \ \ \ \ Existing Road Improvements to Remain 4,225 sf Existing Sidewalk Improvements to Remain 100 sf Existing Sidewalk Improvements to Remain 100 sf 53,110 sf ♦ �t ♦ 52,240 sf J , . � j '\ ,�_ p l / is \ l �'� ♦ --� . / I I DA B Post -Development Impervious Areas Water uantit � I � _ ♦ � _ - � / Retaining Wall Blocks 1,100 sf 8� ♦� / /V y i _ - - / / / / : _r, Ra ,; Tc= MIN. 0.10 hrs. CIVM5z.6 40' OF OLF w/ 0 ELEV.=6' (Tc=0.05 hrs.) r 600' OF OF @ 10 ft/s (Tc=0.02 hrs.) r1 DAC(OFFSIT- 1� ■ I / 1 a 4.76 c CN-\\ \ i ■ 1. I__ - r 1 € 2 I I 1 1 N ■ I_T- o - &t / -.. - 7 A i 'a ♦♦ _.. ^- ��. S: - , '\., , , �\ _ � ��.'� ,ZJ - r I t Tc o.i4 hrs._..i.� 1 I � 1 \ �l I • 6Te= MIN. 0.16 hrs. ♦ ' - ♦ � �1 1 100' OF OLF w/ A ELEV.-6' (Tc=0.14 hrs.) & / �/ ®�° "J���-:, \ 260' OF OF w/ A ELEV.-19' (Tc=0.02 hrs.) �� \' NATURAL ' i \ _LOW V \ Tc- MIN. 0.10 hrs ,.. •. � � ♦ v 100' OF OLF w/ A ELEV. _ Tc=0.08hrs. & 1�. / " \ --___ --- ( ) ;,. � �,� ♦- - ROPOSED ESC LIMITS OF DISTURBANCE BOUNDARY / _ - --_- 75' OF OF w/ A ELEV.=40' NATURAL o S I� DEFINES THE VRRM WATER QUALITY BOUNDARY. (Tc=0.00hrs.) o - -LOW �; I:I - \\, -"\'- % I TOTAL ESC LIMITS OF DISTURBANCE AREA=5.79 ac. / Lo / l ♦ / too -YEAR I, '\ ... V. __".. ■ 3 I (� / �♦ � /' �.,.. • \ / / FLOODPLAIN ® MANAGED +� _ SLOPES(TY.) AV 'eKESERVED STEEP- o - - ■ 1 i I III{ I(\ v v\ _ ��' / `55,LOPES(TYP.) " ■ IIr "I ! _tS__ III Ih �I I\\ \�. __ �_ / I MANAGED SLOPES i��_ ■ L PRESERVED SLOPES \.- �\ - - - -7■I -: "-, / i I �, - I-- I General Construction notes for Stormwater Management Plans i. All dams and constructed fill to be within 95%of maximum dry density and 20/0 of optimum moisture content. All fill material to be approved by a geotechnlcal engineer. A geotechnical engineer is to be present during construction of dams. 2. Pipe and riserjoints are to be watertight within stormwater Management facilities. 3. Fortemporary sediment traps or basins which are to be converted to permanent 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. APPROVED DETENTION BASIN CONSTRUCTION NOTES: FACILITY PLANTING SPECIFICATIONS: 1. THE DETENTION BASIN SHALL HAVE TURF GROUND COVER, SUCH AS GRASS, MULCH OR SOME OTHER FORM OF A VEGETATIVE GROUNDCOVER. LANDSCAPING BEYOND THIS IS OPTIONAL AND IS NOT REQUIRED. 2. THE PROPOSED SIDE SLOPES OF THE BASIN SHALL BE A MAXIMUM OF 2:1 TO REDUCE THE RISK OF EROSION. THE PROPOSED FLOOR SLOPES SHALL BE GRADED TO PROVIDE POSITIVE DRAINAGE AT ALL TIMES TO THE RISER STRUCTURES. 3. WOODY VEGETATION SHALL NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEET OF THE TOE OF THE EMBANKMENT NOR WITHIN 25 FEET OF THE PRINCIPAL SPILLWAY STRUCTURE. 4. A VEGETATED BUFFER SHALL BE PROVIDED THAT EXTENDS AT LEAST 25 FEET OUTWARD FROM THE BASIN TOP OF DAM ELEVATION. PERMANENT STRUCTURES (E.G., BUILDINGS, SHEDS, etc.) SHOULD NOT BE CONSTRUCTED WITHIN THE BUFFER AREA. EXISTING TREES SHALL BE PRESERVED IN THE BUFFER AREA DURING CONSTRUCTION IF AT ALL POSSIBLE. S. THE SOILS IN THE STORMWATER BUFFER AREA ARE OFTEN SEVERELY COMPACTED DURING THE CONSTRUCTION PROCESS TO ENSURE STABILITY THE DENSITY OF THESE COMPACTED SOILS CAN BE SO GREAT THAT IT EFFECTIVELY PREVENTS ROOT PENETRATION AND, THEREFORE, MAY LEAD TO PREMATURE MORTALITY OR LOSS OF VIGOR. AS A RULE OF THUMB, PLANTING HOLES SHOULD BE THREE TIMES DEEPER AND WIDER THAN THE DIAMETER OF THE ROOTBALL FOR BALL -AND -BURLAP STOCK AND FIVE TIMES DEEPER AND WIDER FOR CONTAINER -GROWN STOCK. 6. AVOID SPECIES THAT REQUIRE FULL SHADE, OR ARE PRONE TO WIND DAMAGE. EXTRA MULCHING AROUND THE BASE OF TREES AND SHRUBS IS STRONGLY RECOMMENDED AS A MEANS OF CONSERVING MOISTURE AND SUPPRESSING WEEDS. CONTRACTOR REQUIREMENTS: 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK COVERED UNDER THESE PLANS. 2. LANDSCAPE CONTRACTOR SHALL REFER TO THE STANDARDIZED LANDSCAPE SPECIFICATIONS FOR THE STATE OF VIRGINIA FOR ADDITIONAL INFORMATION. THE CONTRACTOR SHALL ABIDE BY ITS CONTENTS; HOWEVER ANY NOTES OR SPECIFICATIONS ON THE PLANS SHALL SUPERSEDE THOSE OUTLINED IN THE SPECIFICATIONS MANUAL (COPIES ARE AVAILABLE FOR A FEE FROM THE VIRGINIA CHAPTER OF THE AMERICAN SOCIETY OF LANDSCAPE ARCHITECTS, VIRGINIA NURSERYMEN'S ASSOCIATION, INC. AND THE VIRGINIA SOCIETY OF LANDSCAPE DESIGNERS). 3. ALL PLANT MATERIAL SHALL MEET THE MINIMUM SPECIFICATIONS AND STANDARDS DESCRIBED IN THE CURRENT ISSUE OF THE AMERICAN STANDARD FOR NURSERYSTOCK PUBLISHED BY THE AMERICAN ASSOCIATION OF NURSERYMEN 1250 STREET NW SUITE 500 WASHINGTON DC 20005. 4. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFY THE DESIGNER OF ANY VARIANCE FROM THE PLAN. S. THE LANDSCAPE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ANY ONSITE UTILITIES (CALL MISS UTILITY 1-800-552-7001 BEFORE ANY EXCAVATION). 6. REFER TO THE APPROVED FINAL SITE PLANS FOR ANY DETAILED SITE INFORMATION. 7. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES. 8. PLANTS WILL BE PREPARED FOR SHIPMENT IN A MANNER THAT WILL NOT CAUSE DAMAGE TO THE BARK BUDS BRANCHES STEMS OR OVERALL SHAPE OF THE STOCK. CONTAINER GROWN PLANTS WILL BE TRANSPORTED IN THE CONTAINERS IN WHICH THEY HAVE GROWN. 9. ALL PLANT MATERIAL, UNLESS OTHERWISE SPECIFIED, SHALL BE UNIFORMLY BRANCHED AND HAVE A VIGOROUS ROOT SYSTEM. PLANT MATERIAL SHALL BE HEALTHY, VIGOROUS, AND FREE FROM DEFECTS, DECAY, DISEASES, INSECT PEST EGGS, AND ALL FORMS OF INFESTATION. ALL PLANT MATERIAL SHALL BE FRESH FREE FROM TRANSPLANT SHOCK OR VISIBLE WILT. PLANTS DEEMED UNHEALTHY WILL BE REJECTED. 10, ALL CONTAINER STOCK SHALL HAVE BEEN PROPAGATED IN A CONTAINER LONG ENOUGH FOR THE ROOT SYSTEM TO HAVE DEVELOPED SUFFICIENTLY TO HOLD ITS SOIL. CONTAINER STOCK WITH POORLY DEVELOPED ROOT SYSTEMS WILL NOT BE ACCEPTED. 11. PLANTS NOT INSTALLED ON THE DAY OF ARRIVAL ON SITE SHALL BE STORED AND PROTECTED BY THE CONTAINER. OUTSIDE STORAGE AREAS WILL BE SHADED AND PROTECTED FROM THE WIND AND SUN. PLANTS STORED ON SITE SHALL BE PROTECTED FROM ANY DRYING AT ALL TIMES BY COVERING THE BALLS OR ROOTS WITH MOIST SAWDUST, WET BURLAP, WOOD CHIPS, SHREDDED BARK, PEAT MOSS, OR OTHER SIMILAR MULCHING MATERIAL. 12. THE OWNER RESERVES THE RIGHT TO SUBSTITUTE PLANT MATERIAL TYPE, SIZE AND/OR QUANTITY. ANY SUBSTITUTIONS MUST BE APPROVED BY THE INSPECTOR INITIALLY, AND THEN THE DESIGNER. 11 MINOR FIELD ADJUSTMENTS MAYBE NECESSARY DUE TO SITE CONDITIONS (EX: ROOTBALL AND UTILITY CONFLICT). MAJOR ADJUSTMENTS MUST BE APPROVED BY THE DESIGNER. 14 NO PLANTING SHALL OCCUR WHEN THE SOIL IS FROZEN. 15. PLANT MATERIAL SHALL BE PLACED IN EXISTING SOIL WITH EACH PLANTING PIT EXCAVATED TO A SIZE SUFFICIENT TO CONTAIN THE ENTIRE ROOT BALL OR ROOT MASS, WITHOUT CRAMPING ROOT STOCK. 16. THE CONTRACTOR SHALL MAINTAIN A ONE 1 CALENDAR YEAR 90%CARE AND REPLACEMENT WARRANTY FOR ALL PLANTINGS. THE PERIOD OF CARE AND REPLACEMENT SHALL BEGIN AFTER INSPECTION AND APPROVAL OF THE COMPLETE INSTALLATION OF ALL PLANTS AND CONTINUE FOR ONE CALENDAR YEAR. 17. THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE PLANTING ON A DAILY BASIS. I& THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR PLANT MATERIALTHAT HAS BEEN DAMAGED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR's CONTROL. FACILITY CONSTRUCTION 1. THE DETENTION BASIN MAY SERVE AS A SEDIMENT BASIN AND/OR TRAP DURING PROJECT CONSTRUCTION. IF THIS IS DONE, THE VOLUME SHALL BE BASED ON THE MORE STRINGENT SIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENTS VS. STORMWATER TREATMENT REQUIREMENTS). INSTALLATION OF THE PERMANENT RISER SHALL BE INITIATED DURING THE CONSTRUCTION PHASE, AND DESIGN ELEVATIONS SHALL BE SET WITH FINAL CLEANOUT OF THE SEDIMENT BASIN AND CONVERSION TO THE POST -CONSTRUCTION POND IN MIND. APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT DISCHARGE OF TURBULENT WATERS WHEN THE BASIN IS BEING CONVERTED INTO AN DETENTION BASIN. 2. THE DETENTION BASIN SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THE POND IS COMPLETELY STABILIZED. IF THE PROPOSED POND SITE WILL BE USED AS A SEDIMENT TRAP OR BASIN DURING THE CONSTRUCTION PHASE, THEN THE FACILITY WILL BE DEWATERED, DREDGED AND RE -GRADED TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE. 3. INSTALL E&S CONTROLS PRIOR TO CONSTRUCTION OF THE BASIN, INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION PRACTICES. ALL AREAS SURROUNDING THE BASIN THAT ARE GRADED OR DENUDED DURING CONSTRUCTION SHALL BE PLANTED WITH TURF GRASS, NATIVE PLANTINGS, OR OTHER APPROVED METHODS OF SOIL STABILIZATION. 4. CONTRACTOR SHALL EXCAVATE THE CORE TRENCH AND INSTALL THE SPILLWAY PIPE DURING THE ESC PHASE. 5. CONTRACTOR SHALL ALSO INSTALL THE RISER, OUTFLOW STRUCTURE AND/OR THE BARREL(s) DURING THE ESC PHASE TO ENSURE THE TOP INVERT OF THE OVERFLOW WEIR IS CONSTRUCTED LEVEL AT THE DESIGN ELEVATION. 6. THE CONTRACTOR SHALL THEN CONSTRUCT THE EMBANKMENT AND ANY INTERNAL BERMS IN 8 TO 12-INCH LIFTS AND COMPACT THE LIFTS WITH APPROPRIATE EQUIPMENT. 7. UPON COMPLETION OF THE EMBANKMENT GRADING THE CONTRACTOR SHALL EXCAVATE GRADE UNTILTHE APPROPRIATE ELEVATION AND DESIRED CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE BASIN. 8. CONTRACTOR SHALL THEN CONSTRUCT THE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS. 9, THE CONTRACTOR SHALL THEN FINISH CONSTRUCTION OF ALL OUTLET STRUCTURES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION. 10. THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOILS BY HYDROSEEDING OR SEEDING OVER STRAW. 11. THE CONTRACTOR SHALL THEN INSTALLTHE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS. STORMWATER MANAGEMENT NARRATIVE: THE PROPOSED PLAN PROVIDES STORMWATER TREATMENT FOR THE CONSTRUCTION OF BRIARWOOD's LOTS 226-238 (UNDER SEPARATE REVIEW), THIS VSMP PLAN ADHERES TO PART IIB REQUIREMENTS FROM ASTORMWATER MANAGEMENT STANDPOINT. THE SUBMITTAL PACKAGE DOCUMENTS ASSOCIATED WITH THIS PLAN SHOW WATER QUALITY COMPLIANCE BEING METTHROUGH THE BEST MANAGEMENT PRACTICE OF OPEN SPACE PRESERVATION. THIS PLAN ALSO COMPLIES WITH PART IIB COMPLIANCE BY THE ATTENUATION OF FLOWS IN THE DETENTION BASINS. PLEASE SEE THE ATTACHED STORMWATER MANAGEMENT CALCULATIONS PACKET FOR FULL DETAILS OF THE PLAN's COMPLIANCE. FACILITY MAINTENANCE: MAINTENANCE OF THE DETENTION BASIN IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE FACILITIES. DURING THESE INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER: 1. MEASURE SEDIMENT ACCUMULATION LEVELS IN THE BASIN. 2. MONITOR THE GROWTH OF THE GROUNDCOVER AND ANY TREES AND SHRUBS PLANTED, AS APPLICABLE. RECORD THE SPECIES AND THEIR APPROXIMATE COVERAGE, AND NOTE THE PRESENCE OF ANY INVASIVE PLANT SPECIES, AS APPLICABLE. 3. INSPECT THE CONDITION OF STORMWATER INLETS TO THE BASIN FOR MATERIAL DAMAGE, EROSION OR UNDERCUTTING. 4. INSPECT THE BANKS OF UPSTREAM AND DOWNSTREAM CHANNELS FOR EVIDENCE OF SLOUGHING, ANIMAL BURROWS, BOGGY AREAS, WOODY GROWTH, OR GULLY EROSION THAT MAY UNDERMINE EMBANKMENT INTEGRITY. 5. INSPECT BASIN OUTFALL CHANNEL FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, etc. 6. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES. 7. INSPECT CONDITION OF ALL TRASH RACKS, REVERSE SLOPED PIPES OR FLASHBOARD RISERS FOR EVIDENCE OF CLOGGING, LEAKAGE, DEBRIS ACCUMULATION OR OTHER FAILURES. 8. INSPECT MAINTENANCE ACCESS TO ENSURE IT IS FREE OF WOODY VEGETATION AND CHECK TO SEE WHETHER VALVES MANHOLES AND LOCKS CAN BE OPENED AND OPERATED. 9. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE BASIN FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING. 10. OWNER OR CONTRACTOR SHALL MAKE NEEDED REPAIRS IMMEDIATELY. FACILITY INSPECTION: MULTIPLE INSPECTIONS ARE CRITICALTO ENSURE THE BASIN(s) ARE PROPERLY CONSTRUCTED. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND INSPECTOR PRIOR TO INSTALLATION. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR WITH THE ENGINEER AND INSPECTOR DURING THE FOLLOWING STAGES OF THE DETENTION BASIN's CONSTRUCTION PROCESS: 1. PRE -CONSTRUCTION MEETING 2. INITIALSITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) 3. EXCAVATION GRADING e.. INTERIM FINAL ELEVATIONS 4. EXTENDED DETENTION BASIN INSTALLATION (e.g., INTERIM AND FINAL ELEVATIONS) 5. INSTALLATION OF THE EMBANKMENT THE RISER RIMARY SPILLWAY AND THE OUTLET . STRUCTURE s T /P ( ) 6. PLANTING PHASE (WITH AN EXPERIENCED LANDSCAPE ARCHITECT PRESENT/DIRECTING) 7. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) $LOfRIRBX Tm ROUND SERIES TRASH RACK CONCRETE MANHOLE STANDARD 60INCH RACK SHOWN DIMENSIONS IN INCHES PLAN SIDE VIEW Stonni Round Series for CD=ete Manhole Will SfmA OIms Mime MIe ID M603 TIL24 17% K a.14 . 24 M *..% 21% 14 1*14 ■ 43 a 16. 27 ]B 54 . O 57 *9 2734 isV ii an 70 Plastic Solutions. Inc. OLSTONER PO 5.4386, VA,d,c . VA 22606 u W tag NkQc 11a, OVI.S�, VA 7ZW I6771 e77.57a7 phow PRO E67 154q 722-22191w halx//www.plastic-eaWam.mn 'cm LWMS.. MG ISOMETRIC CONCRETE STRUCTURE DIMENSIONS INSIDE STRUCTURE DIMENSION OUTSIDE STRUCTURE DIMENSION AVAILABLE OPTIONS GROSS BRACING FOR OVERHANG NIMERNTI-VORTEX PLATE DATE: DPAWN at APPD Ill DETAIL ;CO TT R. LLINS Lic. No. 035791 n 9/3/20 L91� fy C'7 Z "' _ N M z W UI N Q N z J W N W 1- I Q W >Lji Q LU p J z 06 Z \J / IIB z Q J J w ^ � ~ � Z OL9 J LL N L.L Q (n Z > 'LU U Q W 1 ' Y c G LU Ul M < Q Z LLJ W O� Q SOMEONE M O J LU o LU of L.L J < Q rc 0 0 C:) H� N co U w J H V w F H w of cL w JOB NO. 122071 SCALE AS SHOWN SHEET NO. 9 c C U 0 U C 0 I UKFIWA I CK PIANAULFICIN I I-At-11-1IT A" UC I AIL(JC.ALC Uri _=3U-) APPROVED BASIN FLOOR PRESERVED SLOPES TO ---� IS HAVE P, SITNE SLOPES REMAIN,INDISTURBEDII` / TO THE RIS R's LOW -FLOW i� // ORIFICE ALL LOCATIONS i / I Q WIDTHSW ACCESS MAINTENANCE ESMT.co 1 \ 1 O O AMEND D ,o' WIDE VDOT CL. I r� RI PRA C�Ei@Cl"�'C'7 �'- LLWAY CREST ELEVATION=424 50' \ I (io' TOP OF DAM ELEV. = 426.007 0 Q� i / e0 e. SEE THIS SHEET FOR��r APPROVED SCALED CA, 00 PROFILE ('(YR.) Q 31 d/ Q�.. �: / �io: WIDE o. 1+00 _ OEM GRA55� / (De � LINE ACATH a6 ✓ N', 0+75 APPROVED 030" CL. III RCP STANDPIPE w/ TRASHRACKS SHALL SERVE AS THE RISER STRUCTURE. RISER STRUCTURE RIM ELEV: 423.50' w/ ONE (1) 01.5„ LOW -FLOW ORIFICE w/ INVERT ELEV. 418.0 . Cf� QPPgOVEETRISER BASE ANDEARREL \` , / AEL wlV D-015�CL. III RCP \ \ _ ONNECTION SHA%�LLL�E FIRM!<YEMBEDDED ���//yy-- 0 EL w)VDOT STD. EWa(68LF, .NTOAREINFORffiD18'THICK'CONCRETE -`-� = An NV. IN 4i6.00,INV-0UlT=41549') \ NNDATION THAT IS xS'�ANQ IS BURIED—�— v- ( O 'yo PS - PS_ \ ,BELOW,THE LIMITS OF TI-IE.BASIN�ABIIdGl= �_ V i1-/ _ "-1 % \ \ \ n pPFVFNT FLOATAMN,_, �! ! AGGREGATE \ APPROVED VDOT#3 COARSE \\\ OUTLET PROTECTION w/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT (L=10', W=S, D-2' MIN.) \ O o \ \ \ 0 ". 0 `� EMBANKMENT NOTES: AFTER AN INVESTIGATION OF THE SITE's SOILS, SITE VISITS, AN ANALYSIS OF THE SURVEYED TOPOGRAPHY AND AN EXAMINATION OF VA DEQAPPENDIX A: EARTHEN EMBANKMENT (REQUIREMENTS vs. RECOMMENDATIONS), THE APPLICANT HAS PROVIDED A COMPREHENSIVE EMBANKMENT DESIGN THAT DOES NOT NEED A GEOTECHNICAL STUDY AT THIS TIME. SUCH 15 THE CASE DUE TO THE PRECAUTIONARY EMBANKMENT DESIGNS PROPOSED. A SUMMARY OF THE EMBANKMENT DESIGN REQUIREMENTS ARE LISTED BELOW, MANDATING THE CONTRACTOR MEET THESE REQUIREMENTS AT A MINIMUM. THE EMBANKMENTS SHALL HAVE A COMPACTED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN ON THIS SHEET. BERMS AND SPILLWAYS SHALL BE STABILIZED WITH EC-3 MATTING & THE REMAINING DISTURBED SLOPES SHALL BE STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST OF ML, CL, SC OR GC SOILS & BE FREE OF WOOD, ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL. COMPACTED FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 95%OF MAXIMUM DRY DENSITY AND 2%OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL AND CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS. 51 UKMWAI tK MAINALatMtINI rALAL1IY 15 Ut IAIL (JL.ALt Ur I"=SU'J U —438 \\ >\\\S u � Y� 4Z s��\ S\ \\ L c 4iz 16, ; RTO � \ ry G � D W AMENDED 0 WIDE - I � , M GRASS z LINED ACCESS ROAD Ixti 0�: �" -APPROVED BASIN FLOOR SHALL HAVE `y � - POSITIVE SLOPES TO THE RISER's / APPROVED 030" CL III RCP rs LOW -FLOW ORIFICE IN ALL LOCATIONS STANDPIPE w/ TRASHRACKS SHALL q \ / SERVE AS THE RISER STRUCTURE. LY ER STRUCTURE RIM ELEV.=407.90' _ ; Fo ONE (1) 02"LOW-FLOW ORIFICE Nam' b O+ 0- + '0 w/INVERT ELE/V.=404.00. \ � 1+O -1,/ 9<0POSEDNAR. o� — -_� ° ,� O w _ Y 0 yq N IDTH'�WWJvYACC�fz55 & - l� / ' MAINTENANCE ESMT� APPROVED RISER BASE AND BARREL CONNECTION pq pRCTVED-0s5" CL. III RCP I PPROVED 25' WIDE GRASS LINED SHALL BE FIRMLY EMBEDDED 6" INTO A °� -BARREL w/ VDOT STD. EIN-1 `ti EMERGENCY SPILLWAY CREST REINFORCED 18" THICK CONCRETE FOUNDATION p (48L1NV.iN=4o_3_5a', INV. 1±?5 i ELEVATION=4o8.9o' THAT IS 5'xS, AND IS BURIED BELOW THE LIMITS °� _ OUT= 4 o 3.vt) -- -.L I (lo' TOP OF DAM ELEV. = 410.00') OF THE BASIN GRADING TO PREVENT FLOTATION. - e APPROVED VDOT #3 COARSE AGGREGATE O APPROVED STORMWATER MANAGEMENT BASIN B NOTES: _ -- OO OUTLET PROTECTION w/ GEOTEXTILE FILTER THE REVIEW, PROPOSAL & INSTALLATION OF THE RETAINING OO 0 FABRIC UNDERLAYMENT (L=12', W=6', D-2' MIN.) C WALL ARE NOT PART OF THIS SET OF PLANS. THE RETAINING WALL DESIGN WILL BE REVIEWED SEPARATELY. m O t F,. b/e' lie hole single BldP orlrlce DEBRIS CALF Isometric HDPE w,Ih holes and 1/4- plate .,:ccLio❑ / manufactured by Ploatic SolaUona Inc or cq�al ElevaLiori 435 AP ROVED 030" CIE. III RCP STA 4DPIPEw TRASHRACKS SHALL S ERVE AS FEE RISE 430 STRUCTURE RISER STRUCTL RE RIM 430 ELE .=423-50 w/ONE O 01.5"LDW-FLO\ APPROVED VED BA IN FLOOR . ORIFICE / INVE ELEV.--4 8.00. SHALL AVE POS TIVE SL PES TO TH ORIFICE IN ALL LOCATIOr.S Zr z 5 425 CONT ACTOR HALL qSTALL1 HE EMBANKMENT IN ACC RDANCEwITHE DETAII 1; 4 NOTE; SHOWN ON HIS SHE N p T. N N 420 420 'ROPO ED GRADE o -2%MA . FLOOR ELEV.- 418.00' 415 415 APPROVED RI ER BASE AND BARREL XISTIN CONNECTIC N SHALL BE FIRMLY GRADE EMBEDDED 6" INTO A REINFORCED A.. THICK ONCRE EFOUN CATIONT IATIS 5'x5', A D IS BUR) D BELO THE LI ITS OF APP OVED 0 5" CL. III CP BARR L 1CTH BASING ADING O PREVE T w/ VDOT ST . EWa( BILE, INV. 4 =4i6.00', NV. OUT 415.49') 4 10 MO00 ELOLL 00 `t It d 0+00 0+50 1+00 1+So 1+75 SWM FACILITY A SECTION PLASTIC P-o SOLUTIONS Sax 43Ba itownesler to "U604 INC. 677—e77-6727 arepl.m U-wlwmcam �1 A ENDE o'cylyROTC . RIPRA I LLWAY CREST ELEVATION=424.50' (io' TOP OF DAM ELEV. = 426.00') APPROVED VDOT #3 COP AGGREGATE OUTLET PROTECTION w/ GEOTEXT FILTER FABRIC UNDERLAYN (L=10', W=5', D=2' MIN. APPROVED BASIN SPIL SLOPES SHALL BE 4:1 C TO PROVIDE A SM VEHICULAR TRANSITI( THE ACCESS ROAD & T THE GRASS LINED SF SWM FACILITY A SUMMARY Elevation, ft. Area of Contour, sf Volume, Cf 418 616 0 420 1,437 1,996 422 2,558 5,937 424 3,810 12,264 426 5,191 21,229 I, 430 1/2" zinc plated hook attached with 3/8' faAener I/4- HOPE plate (optional) HDPP, structural plaatw with 2-1/8" holes and 1/4" plate manufactured by Plastic 8olutlons Inc. or equal oho" with opnooal plate Perforated cc FOUNDATION DRAIN SECTIONA-0: TITICAL GRAPHICAL DETAILS Homogeneous fill I Cut off trench-4' below eliltabbl material Sail «rock L----------- J TYPICAL HOMOGENEOUS EMBANKMENT filt r sl0�s dmin Sand, Ironi or rod outlet }� JRnck toe %47rur sitkal filter CHIMNEY DRAIN rill or gravel Blanket drain BLANKET DRAIN Rock or grovel drom Tranoition filter TOE DRAIN Figure A-Ia. Homogeneons Einbankiirenrs lr .Seepage Controls PROFILE SCALES 430 1"=5, (U) i"=5o'(H) RSE EXISTIN GRADE LE ENT 425 1 425 .WAY SIDE 4 o I R FLATTER OOTH / PRG ROPOS D GRADE (LLWAY. 420 420 LUW a0 C! L'Flto 00 J J W W ry N 4 N 6 l7 l7 It' 't w w 0+50 0+75 APPROVED BASINS A & B NOTES; i. SEE DETAIL ON PREVIOUS SHEET FOR RISER TRASHRACKIFRAME & COVER. 2. STATE APPROVED TRASH RACKS SHALL BE INSTALLED ON ALL ORIFICE OPENINGS. SEE DETAIL ON THIS SHEET, OR EQUIVALENT, FOR ORIFICE TRASHRACK DETAIL. 3. A REINFORCED CONCRETE FOUNDATION SHALL BE INSTALLED ON THE RISERS AS SHOWN & SHALL MEETTHE MINIMUM SPECIFICATIONS SET FORTH IN THE VESCH SPEC. #3.14. 415 2=41 APPROVED BASIN FLOOR „ SHALL HAVE POSITIVE SLOPES TO THE RISER's LOW -FLOW ORIFICE IN ALL LOCATIONS 405 052a% kAA APPROVED RISER BASE AND BARREL CONNECTION SHALL BE FIRMLY EMBEDDED 6" INTO A REINFORCED 18" THICK CONCRETE FOUNDATION THAT 15 5'x5', AND IS BURIED BELOW THE LIMITS OF THE BASIN GRADING TO PREVENT FLOTATION. 00 0 w W (n LL w Li)H N W lei 0+50 COUNTY OF ALBEMARLE Department of Community Development 11,Rf V\� Construction Record Drawings (As -built) for VSMP The following is a list of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdreins. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 5. Current physical and topographic survey for all earthen structures, Ponds should include a survey of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required for alterations from the design. 6. Plants, location and type. 7. Plans and profiles for all culverts Pi Risers Weirs and Drainage Structures - Display the P e Peg+ e g P Y installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design. 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 9. Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. 11. Guardrail, fences or other safety provisions - Display the constructed location of all safety provisions; fences, guardrail, including the type, length and applied end treatments, compared to design, 12. Material layers — biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths, Include inspection reports, boring or test pit reports and materials certifications. Biofrlter media must be an approved state mix. 13. Access roads — show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams. 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. SWM FACILITY B SUMMARY Area of Volume, Elevation, ft. Contour, sf Cf 404 107 0 406 567 614 408 1,145 2,292 410 1,826 5,237 APPROVED 030" CL. III RCP STANDPIPE w/ JCISTIN TRASHRACKS SHALL SERVE AS THE RISER GRADE 415 STRUCTURE. RISER STRUCTURE RIM ELEV.=407.90'w/ONE (1) 02'LOW-FLOW ORIFICE w/ INVERT ELEV.=404.00, APPROVED 25' WIDE GRASS LINED EMERGENCY SPILLWAY CREST ELEVATION=4oB.go' /♦10 (1o'TOPOFDAM ELEV.=41 8L.W 415 CONTRACTOR SHALL INSTALLTHE EMBANKMENT IN ACCORDANCE w/ THE DETAILS & NOTES SHOWN ON THIS SHEET. 405 - APPROVED 015" CL. III RCP BARREL w/ VDOT STD. EW-i (48LF, INV. IN=403-50', INV. OUT=403.14') APPROVED BASIN SPILLWAY SIDE SL SHALL BE 4:1 OR FLATTER TO PROVI SMOOTH VEHICU LAR TRANSITION A 00 THE ACCESS ROAD & TO PROTECT GRASS LINED SPILLWAY. 0 APPROVED VDOT#3 COARSE It 1 O AGGREGATE OUTLET N a0 It PROTECTION w/ GEOTEXTILE It S FILTER FABRIC UNDERLAYMENT (L=12', W=6', D=2' MIN.) 1+00 1+25 SWM FACILITY A SPILLWAY SWM FACILITY B SECTION 415 EXISTIN GRADE 410 410 ZZ OPES� DE A -ONG THE 405 405 W W n d J J W W N L7 0 s W w 0+50 SWM FACILITY B SPILLWAY SCOTT/R. 0!'UINS'Z Lic. No. 035791,' 9/3/20 J m Z J OE ti C? CM N V 1 N O W C� N N W > W ZJ J_ > W L90 Z� W' W Ul 0 W Z NW L.L 1— NW 0L JQ 0 O C) N U w J H- b ~ 0 W OrOr w a JOB NO. in 122071 SCALE AS SHOWN SHEET NO. 10 I