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HomeMy WebLinkAboutWPO201500098 Plan - VSMP WPO VSMP 2016-06-22GENERAL NOTE'S OWNER: WINTERGREEN FARM LLC C/0 R/VERBEND DEVELOPMENT INC 455 SECOND ST SE, SU/TE 400 CHARLOTTESVILLE, VA 22902 DEVELOPER: RIVERBEND DEVELOPMENT COMPANY' 321 E MAIN S, SUITE 201 CHARLOTTESVILLE, VA 22902 ATTN. ALAN TAYLOR ENGINEER: COLLINS ENGINEERING 200 GARRETT ST, SUITE K CHARLOTTESWLLE, VA 22902 (434)293-3719 PRE-APPLICA 77ON CONFERENCE. • FEBRUARY 24, 2014 TAX MAP NO.: 07600-00-00-049BO DB 3310 PG 743 65.90 ACRES 07600-00-00-049CO DB 3310 PG 743 5.45 ACRES 07600-00-00-051CO DB 3310 PG 743 5.10 ACRES TOTAL PROJECT AREA: 7713 ACRES TOTAL TMP CURRENT AC. (+) AC. (-) AC. =FINAL AC. 76-49B 65.90 AC + 0.59 - 0.00 =66.49 AC. 76-49C 5.45 AC + 1,15 - 0.53 = 6.07 AC. 76-51C 5.10 AC + 0.00 - 0.53 = 4.57 AC. =77.13 AC. A BLA HAS BEEN RECORDED, WHICH ADDED 0.59 ACRES TO IMP 76-498 FROM 7MP 89-73D. A BLA HAS BEEN RECORDED, WHICH ADDED 1.15 ACRES TO IMP 76-49C FROM TMP 76-51B. A BLA HAS BEEN RECORDED, WHICH ADDED 0.53 ACRES FROM IMP 76-49C AND 0.53 ACRES FROM TMP 76-51C (1.06 ACRES TOTAL) TO TMP 76-51B. ZONING: ENTRANCE CORRIDOR, STEEP SLOPES OVERLAY, AIRPORT IMPACT AREA, AND FLOOD HAZARD OVERLA Y R-1 RESIDENTIAL (ALL PARCELS) -STANDARD LEVEL CLUSTER DEVELOPMENT BEING IMPLEMENTED IN THE RURAL AREA. -BONUS LEVEL CLUSTER DEVELOPMENT DENSITY STANDARDS ARE BEING IMPLEMENTED WITHIN THE DEVELOPMENT AREA. DENSITY: RURAL AREA: 0.97 DU/AC. MAX WITH 30,000 SF MIN. L07S WITH 100 FEET MIN. FRONTAGE DEVELOPMENT AREA: 1.2125 DU/AC MAX WITH 20,000 SF MiN. LOTS WITH 80 FEET MIN. FRONTAGE BONUS LEVEL CLUSTER DEVELOPMENT CALCULATIONS: STANDARD LEVEL GROSS DENSITY 0.97 DU/AC. + 59 DENSITY BONUS FOR STREET TREES AS SPECIFIED IN SEC. 32.7.9 + 109 DENSITY BONUS FOR MAINTENANCE OF EXISTING WOODED AREAS IN EXCESS OF 209, + 109 DENSITY BONUS FOR SERVING ALL LOTS WITH AN INTERNAL ROAD SYSTEM = 0.97 x [1+0.26] = 1.2125 DU/AC PROPOSED DENSITY 31.97 AC. WITHIN RURAL AREA X 0.9700 = 31 UNITS ALLOWED 44♦57 AC. WITHIN DEVELOPMENT AREA X 1.2125 = 54 UNITS ALLOWED 0.59 AC. FROM BLA WITH TMP89-7 3D X 0.0000 = 0 UNI IS OPEN SPA CE. AREA #1: 22.49 AC. AREA #5: 0.21 AC, AREA #2: 0.18 AC. AREA #6: 0.13 AC. AREA #3: 0.39 AC. AREA #7: 0.52 AC. AREA #4: 0.12 AC. AREA #8: 0.03 AC. TOTAL OPEN SPACE PROPOSED = 24.07 AC; 24.07 AC / 77.13 AC = 31.29 TOTAL OPEN SPACE REQUIRED: 77.13 x 259 = 19.28 AC. OPEN SPACE TO BE OWNED AND MAINTAINED BY THE HOA. ALL OPEN SPACE SHALL BE RESERVED /N A DEED FOR THE COMMON USE' OF LOT OWNERS IN THE SUBDIVISION. TREE PRESERVATION: 14.65 ACRES / (77,13 AC TOTAL) 19.07. PROVIDED TREE PRESERVATION REQUIRED 77.113 x 209 = 15.43 AC. - BUILDING HEIGHTS:' MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 35 FEET SETBA CKS.° FRONT 25' SIDE: 15' REAR: 20' SUBDIVISION STREETS. • CURB & GUTTER WATERSHED: BISCUIT RUN / MOORES CREEK WATERSHED - THIS LAND IS NOT WITHIN A WATER SUPPLY WATERSHED AGRICULTURAL/ FORESTAL DIS7RICT NONE TOPO & SURVEY.• TOPOGRAPHY iS COMPILED FROM SURVEY BY A COMBINATION OF ROUDABUSH, GALE AND ASSOCIATES AND LOUISA AERIAL SURVEYS INC., JANUARY 2014, BELL SURVEYS AERIAL TOPO /N 2014, AND ALBEMARLE' COUNTY RECORDED SUBDIVISION PLATS. BOUNDARY INFORMAT70N IS COMPILED FROM BOUNDARY DATA PROVIDED BY ROUDABUSH, GALE, AND ASSOCIATES OPV JUNE 26, 2014 AND ALBEMARLE COUNTY RECORDED SUBDIVISION PLATS NOTE- FINAL S17E PLAN SHALL INCLUDE AN UPDATED BOUNDARY SURVEY. DA TUM. • NAD 83 EXIS77NG VEGETATION: PAR77ALLY WOODED LIGHTING: NO LIGHTING IS PROPOSED DEVELOPED IN A MINI 4 PHASES. FINAL PHASE ITE TO BE DE MUM OF FOUR PHASING: S () N PLA T77NG. DETERMINED WITH C UCTIDN PLANS AND SUBDIVISION LIMITS TO BE ONS7R ALL OPEN SPACE MUST BE A MIN/MUM OF 259 OR GREATER FOR EACH PHASE OF THE DEVELOPMENT. PARKING: 2 4FF--S7REET PARK/NG SPACES SHALL BE PROVIDED ON EACH SINGLE-FAMILY LOT, ON -STREET PARKING SHALL BE PROVIDED ON ONE SIDE OF ALL GS-SSAR ROADS. BUILDING SITES. • PARCELS 1-84 MAY NOT BE FURTHER DIVIDED. A MINIMUM OF 3,231 SF BUILDING SITE AREA IS PROVIDED ON EACH LOT. ONLY (1) DWELLING UNIT PER LOT SHALL BE ALLOWED. BURIAL SiTE'S. NO CEMETERIES WERE FOUND DURING FIELD INVES77GATION OF THE SITE, STREAM BUFFERS/FLOODPLAIN: THE STREAM BUFFERS SHOWN HEREIN SHALL BE MANAGED /N C ORDINANCE. 7NE ALBEMARLE WITH M LE COUNTY WATER PROTECTION R ACCORDANCE THIS 100 -YEAR FLOODPLAIN LIMITS EXIST. ON THE SUBJECT PARCEL, PER ON FEMA MAP NUMBERS 51003CO229D & 51003CO2450 ADOPTED FEBRUARY 4, 2005. THE PROPOSED DEVELOPMENT SEDIMENT BASIN OUTFALL S7RUCTURES AND SANITARY SEWER EXIST WITHIN THESE LIMITS THE PROPERTY /S NOT WITHIN A DAM INUNDA 77ON ZONE. RETAINING WALLS A RETAINING WALL IS PROPOSED AS A FEATURE OF SWM FACILITY A. MAX. WALL HEIGHT PROPOSED IS Z5'. AREAS. • LOTS: 43.71 AC. RIGHT OF -WAY 9.57 AC. OPEN SPACE. 23.85 AC. IMPERVIOUS AREAS: SEE SWM CRI77CAL SLOPES: CRITICAL SLOPES, MANAGED STEED SLOPES, AND PRESERVED STEEP SLOPES ARE EXIS77NG ON 517E AS SHOWN ON T)HE PLAN. A PORTION OF THE EX/SPNG CRI77CAL SLOPES AND PRESERVED STEEP SLOPES SHALL BE IMPACTED FOR THE PURPOSE OF INSTALLING SANITARY SEWER 1hVFRASTRUCTURE, EXTRA CARE SHALL BE TAKEN TO L114IT IMPACTS /N THESE AREAS TO THE MINIMUM NECESSARY TO CONSTRUCT THE SANITARY SEWER LINES, AS MOlED ON THE PLANS. ACSA/ACSA U77LI TY QMZRACTOR: U77LITY CONTRACTOR SHALL LIMIT CLEARING, EXCAVA770N, TRENCHING TO MINIMUM NECESSARY TO INSTALL 8" SANITARY SEWER TRANSMISSION LINE ACROSS CRI77CAL OR STEEP SLOPES RETAINING WALL NOTE.• NO CANOPY OR UNDERSTORY TREES SHALL BE PLANTED WITHIN 7FN (10) FEET OF THE BACK OF THE TOP OF THE RETAINING WALL. PAVED PATH NO 7E. 1, 60OLF OF 10' WIDE PAVED PA 7N WILL BE SHOWN ON (FUTURE) AMENDED ROAD PLANS FOR WINTERGREEN FARM SUBDIVISION. MfINTERGREEN FARM VSMP PLAN WPO 20150009E, SCOTTSVILLE DISTRICT ALBEMARLE COUNTY, •r' \ ,' \ \ �' .� / / ,� ,� X,` / ` 1-1 - i ` , "� \ , I /' L-- , / � i^�---i - `\ - ' 'T^•.. /-.- t r.. \\ ,r/r'« a e +moi ' \ k t / ' w `' `` % 7 .*,��''y«'•«.4'.?1iffi+as°P I 'K ice. \ •�\ `k _--•,' j' ,.ti: ��: r i'. *•+ t/ \ s � 4! / a,. �.; m O psi' I -'. t �j,:,,, . -i I ( / y t , i -3 -� - I I -1 � - �� -- "I ,-�-�-- /-- X, , \ L�' ` A, r r rte,- J�/�v I``�`' /� '` �. iw «big' �4�iAi •�'E \•+i Is .✓,' �^ /` `\ +' I, 1��' «Tian �'t,14+ .{/!/ /' PIf , \ I i a ', \ r . . S 'p? 4S J� o yr .°.::tit:«`'a«x"`b"'•° +Jb•; 1 .l t � " : , 3 __ 1iJi { o. f 1 1 �,�~ ' tae?. .,,SOA .,?. 1 , ..s -.K E f• �` ,� Y'. y, sr 14'}441 i _ _. • v 'Ift� , - ay,7 :`. IL �r � 11 s / {')i I 1 .;.:;:.:;f; -: ` Vit,, ', ,i�i f' ._. Y / \\ / I °, ,\. ...:I \ \\. } t 11{444 _ J.._. x. I'll., . 'i I "Z '+fab~' :/•.• ss; -7,W,; • (" �� J f / F f f J <' a, e .' 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M T 1 t / / , / \, OWNER WINTERGREEN FARM LAND TRUST 600 PETER JEFFERSON PARKWAY #130 COLLINSENGINEER 200 GARRETT STREET, SUITE K CHARLOTTESVILLE, VA 22902 434.293.3719 .. - , , ­ 11-... ­­­­­ - ----- �' , 1"'.'..'''. ��t \, i i -, �, �.,,,+,, q\ti.\a\� :., , � 7 $ 'tit... % ` *� . ,", = 11 �� 4 rte 6 rii°: �:b?:bab1:«`A..°4 ♦,gym'!" a« �e 4 ° -::ae- - _ 1 x. I'll., . 'i I "Z '+fab~' :/•.• ss; -7,W,; • (" �� J f / F f f J <' a, e .' ' f # t r f f 7 /YM y'v�l v., i z wv y_f I r \ Yc / /,� /' ! /.:'•i fj\\\:s`.t1.rf,l, ( `I ��e / -�;sv .N�:^ \ �,\ ` \'\1 s.N'.= J ;f s r J F f / /! l k ✓ J / ° # 1 I i r \ 6 ,z: I l ,y.. a,. s' l «ni.- : r k. . w 1' K"<,%r. '^?r:k::x :.f .?,...•:` 3>x7:''nr - l �ff \ * / r Yt:<\:> -Y: r,•.�! :,, y:, Fir" <,�s <r.:` -f 'I\\ -�'\ , t~7 .\ I Ir!{: k.:: :i f` ` \ aai�`= l:,.l"fes .-' h'\- Y f d n %r l: � ✓L E �lz�l.1-111 i- Y r A I Ls z r < o f t i~a`a.J`f:2' `.^. - r i :�. `^ .rte- •S�4`T'=.`'." �`' , � .'+' a � di:�' � ?7:� 4: � •.. 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M T 1 t / / , / \, OWNER WINTERGREEN FARM LAND TRUST 600 PETER JEFFERSON PARKWAY #130 COLLINSENGINEER 200 GARRETT STREET, SUITE K CHARLOTTESVILLE, VA 22902 434.293.3719 .. - , , ­ 11-... ­­­­­ - ----- �' , 1"'.'..'''. ��t .­,­ - I � %., - , , �� � %, �­ ­­ . - -, �, �.,,,+,, ' '- �' Jnr_ :., , � 7 $ 'tit... t . .... ....:. - ¢ w ..-' . fir'- :[y��cg.�ry 4 11 �� 5 rte 6 ,J r,oa "r 'T -- :: araS rem ,os E&S PLAN - PHASE 1 9 E&S PLAN - PHASE I %jam, :GA,- \ E&S PLAN - PHASE II 11 E&S PLAN - PHASE II 12 • �, t f,4''I.4t' y kaa `y'y JCYersarY lkldsJe n - 1. - E&S DETAILS & CALCULATIONS 15 --k-\ 16 MITIGATION PLAN \, . q ru d ter+ - otu, ,U"$y' - @T, ti 9' fix: \: A", y -._: Pack �.,x T ,s sips Cruu �� f Ws SITS ff ra11 & y t71 :.' UryEveYait1.Y glace} e: N- - 637 t y, 4y -: yG/ �'L/IfYFQ""� S'234rifYJ14�e -n P, ­.--l., sa,,,„ - _. _ ' k 3 % fC iWYEti'1;1tSGIttlOI �. M.1.1. ig 7 t11 Lr Ya - I :: �lrCT 1V US'_ - n 1.} 11111 ✓� - ` s1. a • f•4Yt�31"1 it VICINITY MAP SCALE: 2000' Sheet Lint Table Sheet Number Sheet Title 1 COVER z EXISTING CONDITIONS AND DEMOLITION PLAN 3 PRE -DEVELOPMENT SWM PLAN 4 POIST-DEVELOPMENT SWM PLAN 5 STORIMWATER MANAGEMENT DETAILS 6 STORIMWATER MANAGEMENT DETAILS 7 E&S NARRATIVE &NOTES 8 i E&S PLAN - PHASE 1 9 E&S PLAN - PHASE I 10 _ E&S PLAN - PHASE II 11 E&S PLAN - PHASE II 12 E&S PLAN - PHASE Ili 13-- E&S PLAN - PHASE Ill �4 E&S DETAILS & CALCULATIONS 15 E&S DETAILS & CALCULATIONS 16 MITIGATION PLAN 16 .LEGEND TOTAL SHEETS „ .. EXIS77NG CULVERT DRI VE WA Y CUL VERT CUL VERT BENCH MARK A DROP INLET & STRUCTURE NO. as CURB EXISTING CONTOUR CURB & GUTTER PROPOSED CONTOUR ---200 PROPOSED PAVEMENT -' . EC -3A DITCH TBC DEN07ES TOP/BACK OF 6„ CURB TIB DENOTES TOP OF DEPTH OF EC -3A DITCH - -_® . EC -2 DITCH 6 " DEPTH OF EC -2 DITCH TOTAL SHEETS „ .. EARTH DITCH DRI VE WA Y CUL VERT BENCH MARK - - CLEARING LIMITS as VDOT STANDARD STOP SIGN EXISTING CONTOUR 200 PROPOSED CONTOUR ---200 240.55 PROPOSED SPOT ELEVA77ON TBC DEN07ES TOP/BACK OF to ,1 1-4 CURB TIB DENOTES TOP OF ,q �.. o BOX APPI�DV�D by the Albemarle County Community Develct)ment Department Date 1 . -1./:ti fir, File ` QTL ,-f,;, T7- z '7(-- IW r : �; SCOTT" R. COLLTNS z L J U Na. 35791 , - .� - �c��31-,'ONAL ��\A z _O t V) w a z Ln > Uj LL, Ln \ 1�0 10 t0 10 10 fn ` t� � � L O a r, N N M M M L9 z r*,_ c ! 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N (I d' z i N :5 Q CL 0) N LU N CL < W � -j > L9 F- 2: � W I- o e r IrN a z cc J LU T < Q = LL W c) C) IG I zo W7 w WF, F-- Ul D cy. , c G U) Lr) �; W ce y L1.1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiim W N CC L, U) � 7 J� Z L F- 0 j3: Wcr u W Q W (5 1), 0 0 0 11-1N LAO LU j 11 t3 n t w y 2 Z o a va JOB NO. 42o9so 11 SCALE n 0 11 AS SHOWN ° SHEET NO. a 1 v) N - VIT 0, REUFIELDS COM 078r4t00I0003600 A'' COMMUNITY GROUP '1� ZONING; PPRDD ^77 ASSOCLAT ION W AC. /T, 1.748 SCOTT R, COLLINS'- N '57 o. 9i 7__ Z ISTING RM I I - I I '-' - "" .\ / D 0NAL T(ON RE L LOTHWER, OR HEATHER L V S . - !�� )PE P CE ZONING: PRD E #FIELDB COMMUNITY C 25.87' OD 03M AC. 1 86' 27" 48.36"W u I FI 5!g. AC '0 4 - I WIS ',-��,J-00 I I I _ , < -) -1 - - ', " 1 0 " -0 !61 7 - ----- OAP t, �7,-"- " -, 0. 1 �?a FIE, b -to 630 Si6`.27'48.36W 11 I 07OR00200037W VA -00 j4 " - 5101(LE� RnBERT 1 OR Soo. -41 SKk" A ZONING: PRD j 0.32 AC, iY. EXISTING 18' RWSA 07OR002DO03WO If QUEEN, GARRETT S Oft WATERLINE A GENERAL NOTES: SHEILA M AA' ",!� 07ORM400WW NIN PRO Im I A, "'E G' - A00 Z 1. FLOODPLAIN EXISTS ON THE SUBJECT SITE PER FEMA FLOODPLAIN MAPS #51003CO229D & #51003CO245D. WILLS, JEFFREY L OR i ISTING 8- SANITARY SEWER ELIZABETH B BAKER J/ 2. STREAM BUFFER EXISTS ON THE SUBJECT PROPERTY. ZONING: PRO ZO 0.275 AC. 3. BEFORE BEGINNING SITE WORK, THE CONTRACTOR SHALL INVESTIGATE AND VERIFY THE EXISTENCE AND LOCATION OF C, " I 1 1, / / I I > UNDERGROUND UTILITIES, MECHANICAL AND ELECTRICAL SYSTEMS, AND OTHER CONSTRUCTION AFFECTING THEWORK. BEFORE CONSTRUCTION THE CONTRACTOR SHALL VERIFY THE LOCATION AND INVERT ELEVATIONS AT POINTS OF CV CONNECTION OF SANITARY SEWER, STORM SEWER, AND WATER -SERVICE PIPING; UNDERGROUND ELECTRICAL SERVICES, 07GROO40000WO DER an NEIVELL, ALEXANDER OR CATION DATA FOR WORK RELATED TO PROJECT THAT MUST ALEJANDRA EXISTING TRE . ELINE (TYP.) 0,278 AC. V, TO BE IMPACTED- 0 BE PERFORMED BY PUBLIC UTILITIES SERVING THE PROJECT SITE. ZONING: PRD STEEP SLOPES Z AND OTHER UTILITIES. THE CONTRACTOR SHALL FURNISH LO / 1 EXISTING MANAGED � "I - - I __1 - - 4. CONTRACTOR SHALL VERIFY SIZE, TYPE& LOCATION OF EXISTING WATER LINES ON THE SITE. ZONING: PRI) U AC. UJ 's P '_ ".1 1 V -- GEORGE A THOMP ROWUEY� DAMAEL Z N 490 48'28.57W -�-34.01" 0 REXRWE ,4 ZONING: it 0. 188 AC. > LU f Z, 4 f 1PO ER r EN FARM Q6 STREAM BUFF IN. I V�U /A RICKARD H P.U�L. 0.211 AC. ZONNG:PRD AC. >< J/ N-06* 25'46.00*E _J 0.219AC r N nONF11jn% 83.00' f CO EXISTING DRIVEWAY 4 07611004 Z `2& 46.00"E tf 0 Z/ TO BE REM(Z�VED­ 7\ N1 6`2& 46.00"E 50., 0 f MURPHY, Wl�,- M ICHAEL REV TIA FTAL SUSAN TI T ISTING STRUCTURE MURPHY S Z 0 N I N G: P. 77RM-DT' E 13 AC� TO BE REMOVED 48' 5 PFAFFENBERMG 9 v 2.11' MICHAELP 0 10 MO "d zi -EXI S CO T /v , //,, ZONING: P t STING tENNI'� CO 0222 AC. BE REMOVED 4i'46 06-W J A N23 S, J RURALAREA W N N15* 42'01.00'W 0 EVEL PMENT, 3E. PRD /X-1 "W ZO L84' BOUNDARY 43 ___N21 OV 58.00-W N26* 25.00"W al 32.97' 142.53' x 07 J 0 BE REMOVE ZONINX ce 1 AC. to `UD (STING HOUS UJ r DEILY, 7 Z, N -I z \0 y or t 1 41 DEVrIT E YO UJ PO " N� A PRD -A 01W 10 W&RIMMIWO VN"AA S I REAM BUFFER N261 5T 27.00'W Z^13 I ING 120' LU 31.09' Z L C, < yJ N -�_N26' 5r 2T.00"% UJ 0 _J in LU VEPCO EASEMEN V, "A Horl-ow __ 10 T V) < _06RGE FARM, WC - ------ Z 0 _V ZONING: R+RE�SIDENfU LU 0 L) TO BE REMOVED N27' 42- 21.00-W -EXISTING- 18.43' 39 82' z A UJ Z ALSEMARL COU A% Z OMPM40003100 IT 0 EXI 7.56, 0 /* 21 H AUTHOR BE REMOVED'�, n_ ZONING: P , , -- i / // " \ N Z - __ - / �--- ---r/ Z-, k-4 10345AC.-� V) _jJ gg Z 0 UJ 1 U0, WFU zz f Z Z 0 N 'MI > < --�EXISTINIG MANAGED STEEP SLOPES 29' 42'03.00"W 5'1 0 Z 5 0 -A "W 511 N28 \ . �4 )\/ V, 43'23.00 EXISTING BARN_L,,�, STING TREELINE (TYP) STREAM BU"hK 86.7Z -- ----- -4 LU D LLJ => LU L) < 7 _N L --TO BE IMPACTED PROPERTY LINE (TYP. N IRA �_3 H OWMr 00", In Lij LU a� LU Cie A U) Ce LIJ CL LLJ FXI ISTING TREELINE "PL), V) V) k -A STING MANAGED,'// v STEEP SLOPES IN iu> ai -W 'STEEP SLOPES (TYP.) �_j 4* 02.61 04- 19.57-W_ PACTED Ott TO BE IM. N31 9.94' 99.92' m 07BROODODDOIOO _411 N27* 5(Y 41.00"W L _7 RMFE DSCOMMUNITY d N - 01; 11 -_ --- _- _­ - -` 2� 37.75' =LA.1�141,C THE EXISTING CRITICAL SLOPES (TYP., 0 OX NC ASSOC .7� ZONING: PRD t,-, V/ V kc, 0" EXISTING 100-Y FLOODPLWAI 1,4 -, -­,� 1 '4 - - . - - - FIRE HYDRANT @ 4 V 45.344 _0 EXISTING RWS' "t -AN V ib Ln TO BE RE V TIRM 'W/W 1Y. 4 @ EXISTING STREAM /,�og� N25* 51'47.35W @ 4W a @ LOCATED /v UJ v -- ---- t , " , tt " 1 ) 80.67' tt , 10 0 A ""I'l < 7 EXISTING 18" RW 4 4 ..... . ... . A." 2011'4 7' @ ---STREAM BUFF WATERLINh l, 100, WPd W 0. N N23* 51'34.60"Vi 37.37' N 0"// INO 3T 17.68"W-1 N2! M =,B�.1,TRWTIE8 1A V N7 f" y 0 L9 .,AQ - X, VVa NTIAY -;k/ o7 / t vw ISTING TREELINE (TYP.) CY) g" Fr 41 @ �72 �570 CY) M-0/4 R, R1 �V R �� y EFOI. IMIAIIIIINI� cy� f L:--i0tI.81, K--2300.19 t Cy) Z 02.54 fl C\1 AVH_A_ R & LUZ I VELASQUEZ M J X/1 AP x A'I�Z I / -"- __ --. M It, N1, , t _101 Al a R 078DO00=180 �W gg' gv -----S23* 32 CY) i,,MNN, "? V, 411 ON 09.k"E J, -t, I-- .6WAC. -rgXISTING, S I REAM W M BERM BAP71ST CHURCH ETAL AV­1-­­­ 69* 12'02.60"E ZONING., R-1 RESIDENTIAL S220 21'41.12"E rIN CRITICAL S I! 1MAC. 0 'EXISTING CRITICAL SLOPES (TYP) x, J Z =54.55, R=2275.19 @ 2- y 25.OV 0.49' LOPES (TYP.) K "01,100 ggill SID Z TRUSTEES @ L=35,85, R=600 C:) IN A=001.37 EXISTING PRESERVED A=00142 a STEEP SLOPES (11 T F.) 0) =96,78. R--693.77 N C\1 / � 141 % 1 1 M 0 M cQ S2 9'02.12*E 82.36' 1. E .00 :42 f K NO , , I 10 2"4 CL RURAL AR_ IT) n EXISTING A tVtLUPMtN I LAJ �g Z L 60.63, R7-39 DRANT BOUNDA, A=00,.- 0 5m AWN" m T S56* 24'55 N "Q N16* 54'53,, lIx, ��,N86' 54`37.11 5-E il-4 � X i 1� 1 8.56"' LAN6'ffW; WCHARD H�.� 61 Z 1 BARMCK & "ES N ZONING: F N DEINLEIN TRUST RD 0 4 Cf) 1 2 t, Z A /� \ �F Wly/ rry ZDIONG; R 0A 4 RFSbENFT 'N 7,DA1GOR LU CR' LP .q A BA UJ 2 g MOUNTAIN LOt4 . P -3 v, INS LLI �0 11_1\ 1-1, - �/10 An" L9 �g/ OX X gia, 06, 20'SANITARYi 7g 15K < N10 *E p - gw EWER EASEMtN 11 bl"), 41 WSA General Water and Sanitary Sewer Notes (revised February 2011): �,P, I I 'D.B. 3190, PG. 654 74.14' < V �1 �,"'Mkl .,ggg gpM IN 3 17.28*WL,-"'/1 ;W11O M 0 g E-000MM U. _IAM J I A EXISTING 8' SANITARY SEINE VON 0 Ag g 4. R a. All materials and methods of construct on shall comply with the latest version of the General Water and Sewer Construction Specifications as adopted by the Albemarle County Service Authority on January R LU 401 15, 1998, except as modified below or in Special Notes. 0 b. RWSA shall approve all construction materials and methods of construction. A prieconstruction N� UJ p conference shall be held with RWSA prior to the start of any work. -i -:f, �4// K W LU Z -J 49.82' 4! S40* 39'08.65rE Wg Al Ce 0 V c. The contractor shall be responsible for notifying Miss Utility (1 -800-552-7001 S41* 03'1924"E # Al d. RWSA Engineer (Victoria Fort at (434) 977-2970 ext. 205 shall be notified three business days prior to 17.14' _D) the start of construction. 852' 7,TffiN N EM 'NNIM.� 1Mk1.A,.'11 14,: Y 090EMD00,0200 U) CEORW. -a A M All 18.79' /Z Im Ul 0 13' 49.42-9, 4 Elf e. All work is subject to inspection by RWSA staff. No tie-ins to the existing system shall be made without Y, IST G lL N 'Al -/W No e wy mg - - 80 EX STING 12' ACSA "N" ERLINE ISTIN SERVED ` FIRE HYDRAN I coordination with and the presence of RWSA staff. No work shall be conducted on RWSA facilities on �/X/V;,/ Ce. Z tr /// I LU TO REMAIN, -SLOPES(TYP) 7 I E -Er weekends or holidays without special written permission from RWSA. g,,,,�g g� & UJ 10-f 0111 iiiiwiiiiiiiii rr, f. The location of existing utilities as shown on the plans is from data available at the time of design and is x- 01� V 0- 3W 08.65"E SLOPE LEGEND 0 36,48' _4 not necessarily complete or accurate, The Contractor shall be responsible for the! verification of the M cf) y location, size and depth of all existing utilities, both surface and subsurface. The Contractor shall S33` 06'01.76"E STING 8* SANITARY SEWER immediately notify the Engineer o '1Z �� W. . �;�, P 1� f any discrepancies between the plans and field conditions. The JA I 35 CRITICAL SLOPES UJ \--"ZO�N 2.16"E Contractor shall use due diligence to protect all utilities and structures from damage at all times, S24` 48' LU 20.34' whether shown on the plans or not. Damage to any existing utilities shall be repa[ired by the Contractor ilk F_ rr MANAGED STEEP SLOPES rr to the original condition at no additional cost to the Owner. EXISTING 12-ACSA/---' fj�l �1, ,, WATERLINE 0 py `A, g. Erosion and sediment control facilities shall not be permitted in the RWSA easement without special < 014 ) ` V1 it Z v - otherwise by RWSA in writing. A i h, No blasting shall be permitted within 100 feet of RWSA facilities without written permission and RWSA W PRESERVED STEEP SL 3, gq written permission from RWSA. No grading shall be permitted in the RWSA easement unless permitted IP 'RE g. 'R OPES C\1 e7 'g," ap -blast survey may be .......... J� u Ae. proval of the blasting plan, Ground monitoring during blasting and a pre KOM I, required. For blasting within 100 feet of any operative RWSA sewerlines, bypass pumping and/or pre - M -CCTV may be required. RWSA may also require certification from a licensed professional NO;' A� LU and post eng Im 7 ineer stating that the proposed blasting will not damage any RWSA facilities. Damage to any ,o y 01.,?��',�'X/* -1;'t' AM N N utilities due to blasting shall be repaired by the Contractor to the original conditioni at no additional cost to the Owner. MIN M, A M mum sep 0 LU The contractor shall observe mini N aration requirements for utility crossings. When a crossing is 3: made under an existing facility, adequate structural support shall be provided for the existing pipe. The TIN, JOB NO. V A 021, ffi GRAPHIC SCALE '10 Ce CL U) 100 0 50 100 200 400 '0 area of the crossing shall be backfilled with compacted 57 stone to the springline,of the existing pipe. 4,� �4 N g a j . New water main installations shall be pressure tested, chlorinated, flushed and have water samples SCALE IN FEET approved prior to making any permanent connection to the public water system. Approved methods of /t y':, I inch 100 ft. filling and flushing new water mains will be required to prevent any contaminationi of the public water 122 W N system. 100' I \1W k. No permanent structural facilities will be permitted in the RWSA easement, This iincludes building M overhangs, retaining walls, footers for any structure, drainage structures, etc SHEET NO. 0 tk/R 1. Trees are not permitted in the RWSA easement. ............... . P W, < Op 7 I Z, `v �x S____ COLLINS�� OPEN SPA r/ (`C)TT�R fl � \x, �_'-Oo_sa�70FIIIR D OTb C E. ARZ� PROTECTED FROM -�r X—A No. 35791 V _1A THE -FiY-AT. <\ TURE DEVELOPME�4Tr _FU t V, 6. -10NAL j 7 �A/ X .2� J 4W A\* 4 01 WIN&4, NIP V ........ .... \ .. ........... 1114 .......... . ....... .... -hrs. . ................ 41� QTALTc=o.26 Z 0 5 44� >/ z 4* i0o!-O­F'OLFlwj A ELI�V=V(Tc=o.2i hr§,) ............ ...... i;�� �FD .......... FLOW w/ A ELE_V--4V (Tc=o.o5 hrs.) u .7 - LU 'SPAPE�',AR . . . . . . . . . . . . . ... z ..... . F-TUR5,D VELOP 0 U Aw > uj ce IV: k x _v N� jV4. X ................... ? V k 4 .......... AV DA'C' (DRAINS 707Z iRTH) 8.47 ac- Tll�-­ 11,�.", 491 CN=72-K Z _1P x 491 7_6�0.26 h K bl< 4W' KA VV lz LLJ 41, 1 Pi 4fp Z La v X: .... A f k Z (DRAINS 75_THE",5,0UTH, X, FACYLJTY,9 IS LOCA") qw / ...... Z. WHERE PROPOSED S*V IJ zx�_ - g, ui TOTAL5 CN=719 11 .97 ac. t T4 - T 023h 9� .. . ........ ....... 'ANN'' T�TAL T60.1 his. ........ �, 2oo'OF (RLF w/ A ELEWT:� (Tc - %+j i '4C. FL0Wwj A ELEV=677,,`.(rTrc=o'03 rs. z 4� 0 5 5 40- ......... 40 Lij N f LL z 's 0 7 ........... U) > 4$r 0 .. ..... .......... , . ... <.;z - � ... / ME , , I X y ........ �A 4$ Z 0 -S yl + L!4$; a 4W 4dik R, -4, m N_ AA 4w IALU 1-4 1-1 'N s", 4w N A-- STEF-P-SLOPES 10 < 41* 1EIMPACTED�ftP.-Y-SLI6 //Z 4481 x, jo OF-CONC.F (�W­w/ A ELEy5ia16'(T�7-,o(6 'N" ........ (0 --- 50a. ......... ..... .... .. 7 �7 47_' .... ...... TOT , x, N NC_ F ! " �B�g,7 �, Ksl_ _, . ............ *98 ........... 5 CID @ 0. xx:: x ov- : crm, 'S, /_""fQ'YQRe'0V @ J @ V, nl /% g- ...... SOO—- f 2 00 .......... @ ....... @ c @ ------ N MR ......... ...... ...... . ........... n R @ x " 21, Y.: v VV V_ 4W t -,gm Avn 19, @ Z 0 X n M T,7 4- m 49c -- L) ---502 86 7 a X M 481,\ Tyr—__ ............ ....... @\ X LARGELY COMPO 'IF'Vrmja�URBED OPE�SPA IT amy- @ g x kLATVV, 10 f LOCAt S7 : : Z 15� Y11ELOPMENT BYPAS OF PR C -T___ :,OF.PR V :��-�MTVRiDEV ',OPME� TeT ... ............ 0 P,0c ---(DRAIA(S sti) S��M A'ISL&A�F6) OF I LITY �p _,�P --w Z C K�M He. .0 25,U5 aC. .......... ....... PRMOSEP/SWM EXISTING -ICN-sq4, 'FACIYTY'A' _x T 24 hrs.,/ PRESERVED STEEP �,n SLOPES (TYP.) AV Z f I Z J "Sc - INS O�NOfil� DA�D` WE" ti ii, -- (DRA g @ WERE PROPOSE9 ........... /V i 6 rACLITY D ISILOCA A", ac. Ix 1 PIP 3_ j @ @ V CN=62,!� x -"Tc= o.26 hrs. A TOTAL Tc =o.24 hrs. I if P LFw1AELEV=6'(Tc=0.2i hrs.) 149?' CqNC.F�OWw/AE�LEV.��3&(T!�-�O_P3hrs., lie O� V 0� TOTXL i c=6.2t, nrs---'- "FLOW ELEV=53'CTc=0.03 hrs k v X J 00- Op OLF w/AELEV=5' (Tq7-00 _n CONC. 4w 0 N, X/ �'a w :i."g/ f 4* 41p 44W x. r p, m 41W X6 -1. '' -, , , , LOC DEPRESSION v ........... Z "5 qw IX NOW 41 R f Q X ';X m F _4 I/ \K, A V Z� 4. -7- , 1-D" al. /6' Y ---------- (Y) (Y) cf) (3) c� 't cr) z c\j 5 C) CL a) c\j c\j Z < uj uj Ld (D > < z U) I F—M m L.0 uj 0 __j U. F_ LLJ LU LU z uj C/) f rVA %V�w 0 u jy i ui LU rr" UJ > U) z uj ce- ui LJ < C� N Ul 30B NO. 142098 SCALE 1 =801 SHEET N 3 < U-) t7. z Lo U F - Z Lu z 0 U Zcezow D 0 u W Lu CL M w a z ul X: ;�_ 0 u LU p- �: Z 0 U ce w 0. a LU 0 u =, ou cj� uj 8- a w w Zf V-1 a Lnu 1--_ U z =) 0 U ce w CL a LU m: 2: 0 u Z u 2: uj < m cl W P. -I 2 LA. a j;j En > 5 , uj ED jrj ce rv, ce. 4w IALU 1-4 1-1 'N s", 4w N A-- STEF-P-SLOPES 10 < 41* 1EIMPACTED�ftP.-Y-SLI6 //Z 4481 x, jo OF-CONC.F (�W­w/ A ELEy5ia16'(T�7-,o(6 'N" ........ (0 --- 50a. ......... ..... .... .. 7 �7 47_' .... ...... TOT , x, N NC_ F ! " �B�g,7 �, Ksl_ _, . ............ *98 ........... 5 CID @ 0. xx:: x ov- : crm, 'S, /_""fQ'YQRe'0V @ J @ V, nl /% g- ...... SOO—- f 2 00 .......... @ ....... @ c @ ------ N MR ......... ...... ...... . ........... n R @ x " 21, Y.: v VV V_ 4W t -,gm Avn 19, @ Z 0 X n M T,7 4- m 49c -- L) ---502 86 7 a X M 481,\ Tyr—__ ............ ....... @\ X LARGELY COMPO 'IF'Vrmja�URBED OPE�SPA IT amy- @ g x kLATVV, 10 f LOCAt S7 : : Z 15� Y11ELOPMENT BYPAS OF PR C -T___ :,OF.PR V :��-�MTVRiDEV ',OPME� TeT ... ............ 0 P,0c ---(DRAIA(S sti) S��M A'ISL&A�F6) OF I LITY �p _,�P --w Z C K�M He. .0 25,U5 aC. .......... ....... PRMOSEP/SWM EXISTING -ICN-sq4, 'FACIYTY'A' _x T 24 hrs.,/ PRESERVED STEEP �,n SLOPES (TYP.) AV Z f I Z J "Sc - INS O�NOfil� DA�D` WE" ti ii, -- (DRA g @ WERE PROPOSE9 ........... /V i 6 rACLITY D ISILOCA A", ac. Ix 1 PIP 3_ j @ @ V CN=62,!� x -"Tc= o.26 hrs. A TOTAL Tc =o.24 hrs. I if P LFw1AELEV=6'(Tc=0.2i hrs.) 149?' CqNC.F�OWw/AE�LEV.��3&(T!�-�O_P3hrs., lie O� V 0� TOTXL i c=6.2t, nrs---'- "FLOW ELEV=53'CTc=0.03 hrs k v X J 00- Op OLF w/AELEV=5' (Tq7-00 _n CONC. 4w 0 N, X/ �'a w :i."g/ f 4* 41p 44W x. r p, m 41W X6 -1. '' -, , , , LOC DEPRESSION v ........... Z "5 qw IX NOW 41 R f Q X ';X m F _4 I/ \K, A V Z� 4. -7- , 1-D" al. /6' Y ---------- (Y) (Y) cf) (3) c� 't cr) z c\j 5 C) CL a) c\j c\j Z < uj uj Ld (D > < z U) I F—M m L.0 uj 0 __j U. F_ LLJ LU LU z uj C/) f rVA %V�w 0 u jy i ui LU rr" UJ > U) z uj ce- ui LJ < C� N Ul 30B NO. 142098 SCALE 1 =801 SHEET N 3 : I �� n,-,,,. -1- , - !9 — V \ \ _� I \ ,N� �,,� \11��,"X.11'171, ��, / �1� - .. - )11'1� C - _,:: ­-_­ � . .. - -, ­ - ­ --- __ I 11 — — -- \\ / / 7 N / \� \ - ­ _� / - \ N ��­Iy IV 1, : . � I , ­­� � -1 _ " I � 77 .71 \ .-- 7 7 7 777 7 1 ,-,�, 7 /' 7 77 7 � 1� \ I 11" " � - I/ I - \ �� ��, - � - — / - STORMWATER MANAGEMENT SUMMARY '\ � , 1\ 1�1 ­�_�, _-� -M / - / -- / / / / / \ — �_ \ IN \ rI 1,1'_�,�`,�,,�..�, ­&­ — ..... , �, �A , " / I — ,� . � - - - � / / \ , \ , _', A— — _� THE CONTRACTOR SH L RETROFIT THE SEDIMENT BASINS & INSTALL THE PROPOSED STORMWATER MANAGEMENT FACILITIES. THE CONTRACT70111 SHALL / / / / ( I I 1, �, , N , -� ._. :. : - . " ,,� ­ � . ­ . __ " I �� / / / I/ \ \ \ \ -�� N \ \ i \ I '� \ . .2,-- - 1.11-.1.1 � I _____L / - - .11 _� � R S LANS. -,, -- / / / z / / -- , I ", :�� . .K.- - __., INSTALL SEDIMENT FOREBAYS, AQUATIC BENCHES, WETLAND SHELVES AND THE OUTLET CONTROL STRUCTURES IN ACCORDANCE WITH THE P OPO ED P " ,.- I __ I __ V--.-1-.. I ..­�­.,:��.­", . 11- - __7 ___ � -.1-1-1 Q - I - 1_1� I , I I _. _S 7L � / I , � _;1 ')\ I , \ , 1� � - 1-1 � \ \ __ F I, \ , \ 11 � I - � � - , CONVERSION OF THE BASINS SHALL OCCUR O_ NLY AFTER COUNTY INSPECTOR APPROVAL AND SHALL BE IN ACCORDANC W I H VESCH & VSMH IRE UIREMENTS. I / I I / \, - - \ \ I ,h, I N I . � % � - , , � � ��`, �_� \ 1: 1�* �' , I I \ \ � - I' 0. , , _1� , I \ \ _____�T _\ I \ - THE PROPOSED PLAN UTILIZES A CLUSTER DEVELOPMENT THAT MINIMIZES LAND DISTURBANCE AND MAXIMIZES OPEN SPACES AND BUFFER PRESERVATION. z III � / OPEN SPACE. AR . . ""r- .%� , , �� � -1 mp/1-I LAyourr TO mmmin ITS IMPERVIOUS FOOTPRINT AND TO MINIMIZE THE AM � - - , 00 !MPLEMENTS CREATIVE DE"- GNS WITH THE Ro , / � \ \ - - I ­� \ �?� . - � '11��\ ,`,,�: �::­ �� , \ �, ///-- - - - ! - �/ r/ / � ,,- ___ - ? \ / ......- / . � / /' / Z/ �' \ \ 1�1�,-/ �5aE-OFPROTt'.'M \ \ ,�41 /I I , - N� �\%, \ ___/1 , � �N k- / -_ 7- .2, ,,�, � " .", kY��-%,::/ _1k OUNT OF �! - � I Z/N \ \ \_ \ "I �r\ � A�, I , , ,� ') I .,� \ , 1, .1-11 / � THE PLAN ALS / , / I , 1-1 \, I , . .. - I \ �� _z� _,O.N,--� - - ,_ '%_1 _ PROTECTED FR�M ! 1 ", , - , ,.� _ � �., �_� � ... _� � , \ I I : EVELOPMENT -Z \ ,:�z f \ i � , . ''.. �_� N - ) _N / -, , _N ; I ,� , N - . I - EVEL P � . --�,- � , 7- �� , � - ME .. r / / � .� ,-- -,, - - � � . - , END RESULT IS A DEVELOPMENT THAT REQUIRES A TOTAL PHOSPHOROUS LOAD REDUCTION OF 20.14 Ibs/yr. THE D \ \ � / '/ / NNN��_FU 4 1 Z�,__�_\, , . � y � / I / r CO CALCULATIONS FOR I I HEP T�j .1 _�� ", , � -� -- -9 hirs. I / ­_ I - 4�� \-,- N­�, - \ ,,, \ IN li i ­ -1 EVIDENCE OF THIS COMPLIANCE. , I \ ' / . I ... z "I ��x �::: \ ,4 -TOTAL Tc=o.i GRADING REQUIRED. THE I - ACHIEVES WATER QUALITY " MPLIANCE BY REMOVING A TOTAL PHOSPHOROUS LOAD OF 20.79 Ibs/yr. PLEASE SEE THE ATTACHED VRRM I I z \ \ __ , , . , I% 1, \\\,\, I \ \ 1N ,� �'. / - � - , �/ I /11 \ \ I /f.-,'. �'­ ' ;��, I - ' -- _�,­ �_ - `�,,\, \ I WJL�tl I - , _, - _� -_ , " :Loo'OF OU _t =91 I C=0-201 I I \ X NN, \ \ \ - _", - - �-- I I. ­�, %rl ,_ _,'y, �, ,,,_� - V/ (r ,� ,�, ,�, - 1�', ---- � � � I I \ \ \ - \ / . __'J;� ., - z, �� - 11 \ / � � ___ \ \� �� , ./ 7111� �1 3.-io: OF CONC. PLOW,w/ A ELEV=-ilil �� TICES IN ACCORDANCE WITH THE JULY 2013 DRAFT VSMK \ \ !I .%,.,�.,. z - - ," "''. , 115 " THIS DEVELOPMENT ALSO UTILIZES ENVIRONMENTAL SITE DESIGN (ESD) TECHNIQUES AND PRAC _/ \ \ / '�, / � / / "I �, .�, I \ - I ............ � -, I 1\ > \ CHANN�L FLOW 0 5 ftl,- �­ , , . _� \ "I � � I . , , " , '_ , �, *101 , , � EXAMPLES OF THE ESD TECHNIQUES AND PRACTICES PROPOSED ARE AS FOLLOWS: / \ \ \ �� \ / ) I k, I I I /� I ,�%,X__­111__ I . �-,�?'� - � / I` X , ---_ � -,/ f " -- ��,';Ix­j .. - , - �� I - -) , , , - __ 1. �, -, , I , , `�11 - . ­ , � , ­� - A. ESD PRACTICE *1: THE � 1� X , - � � 1, - , ­_ - - _'��111 � I, � , - \ � "?" t , - - � i I __/ _,-,--­,�a, -,d / I 11 1\ I , '_ -, __" 1 3 -- 11- I �� , - __x .- _­�_ � � PROPOSED PRESERVATION OF UNDISTURBED NATURAL AREAS. ,� I l! � '� � ,4:/)�, _____ , X _?�' - /­��'11� - ­,,�, ___� \ \ \ \ \ / - /_1 / IN __ _/ \ -- i I � I \ � X \ � \ � X P, _1\ I - I ------- --- � - . I 1, 1, � - -- _____ - - . I i Z;� ,---,r P & THE UNDISTURBED NAI`URAL AREAS stiovIN, THIS / , k i i I \ \ � . ��, f�. / 11� / 3� , � � . I ,-:,- `7-_ , I V- 1. Ay � I \" r - �, , . ! ), 3�-_,� - , I 17HIS IS ACCOMPLISHED THROUGH AN EASEMENT DEDICA RON OF THE STREAM BUF�FE I I � i \ ,�.� ,�Z, - -` , � ,, , , , / //�/ I , 11 I , V:< . � —; � I I ?_1 / ) \ \ . i \ \ /� \ \ I , I \ " , I �/ � ,-, ­ , .�, I ( ,,, ---,,-w- " - / I I I I ^ - ,- � - " I \ 100 I I ,. ____�z -, , , . , , " I , , - , 11 , \ I . i I . . __�, / i EASEMENT WILL PROHIBIT FUTURE DEVELOPMENT AND DISTURBANCES WITHIN 7HE STREAM BUFFER AREAS OUTSIDE OF THOSE jPROPOSED � � I- .... 11. __. - - , 411��N _', ".. % / � / / "� I - ,� ___ 1.\ I \ ,� � ) � ..... ,;x ----,, "'T 'I-,' � / I \ \ \ . %�11 WTH THIS PLAN AND THOSE APPROVED BY THE COUNTY) , V� , ,­.­ _�'11. �, "", - ',,� ', * 1� '--, � - I \ - 1� ,�o . , \ / , 1. , --� S , / / / I N �/�_ I 1�_ 1� - T --' '� III \ - " :,."', \ " _�' /,�_ I , � N", 7, ", ,� ,,- ";:\ - , \ � - ... " B. ESD PRACTICE #2: THE PROPOSED PRE, ERVATION OF RIPARIAN BUFFERS. I � � I � - � . 11 , i 1, - ` I - 1� �, ,­ - , � . � - - - - -"_- I - - � - � I � ", I - -1 - - - - -Z Ad -T I . , . - I . !,- I 11 I , __ __ - -1 - - - /!�_ !,:�MJC7) n' ju ji SE�,� f)�--!-,vr,A? ( - .4 ,1 t : ; � � � 1. I '(11 1-f...- - 11 .�, , -, it, - - , _55��',,� -11 ),?�l wlml) _Qr;,J: JAI FQ,� ;P- C-.,Q,I�E �d CiIF, Tj_14: QTK�jC Qi IK _-j:� i i i I z 1� . ­­-, 1 ,,.--- - I , '. __ U- I : �. _ - . I . I I � _� I I- I I - - 11 ,,,A I- � , - I - , - -, � ' ' .ys Y'� 4r I --- _­ "I __ - �11 -Il- I 1-1 - � - I -.-- I i ­"'i�W___ � k � ­��­­ ;`Iffl�u 1H T�t ,7' f - F"� �'­­f` ­'­/ . I / . I . \ N � � ; 1� "', 1_\ '.... ... I _11 / N - / I . 7--� _ - _­ \ I I __ 1\ __ �, 1, -1 ." C. ESD PRACTICE #3: THE PROPOSED PRESERVATION OR PLANTING OF NATIVE TREES / / / I � \ . ,-'.,:�� _­ \�, ____ / \ ,,, /I " �',, ,��'11 - / \ � ,\ / 11 /"' - 1�� , - - ; HE PROPOSED DISTURBANCES IN THE EROSION & SEDIMENT CONTROL PLAN. THE LIMITS OF / \ I "","."..""', \ __-, � -, \ '_1 /1" _­ , � (THIS IS ACCOMPLISHED THROUGH 4,IU177NG T � i" i I \ 11 \ / / I DISTURBANCE REMAIN OUTSIDE THE LIMITS OF EXISTING NA 77VE TREES THAT ARE PROPOSED TO REMAIN. SEE THE ROAD PLANI FOR THE L / .., — -7 1-1 \ ) I ( I 11- - 4�",�, _1 �, \ \ ,\ .1%, .... ... ..- I / ./ - - 11 // / � I 1-1 ____ \ :.,."� �, ____ / " - _­ . I ...... �.,.,�'. / I ,_ - -1 I ..I_ ... / -, ..... lu .. . ..... �_ � .--- ... I .. ... 1.1'...'%, - I . __5 I I - TREE PRESERVATION AREAS. ADDITIONALLY MITIGATION PLANS ARE PROPOSED.) / I � It / I ___ . ...'.'. _5%�e - - _ ...... .......... - � � 1 ...,...,.........."...,.."..",�.. D . ESD PRACTICE *4: THE PROPOSED AVOIDANCE OF DISTURBANCE WITHIN FLOODPLAIN AREAS. / / / - .. I.. 1\ __ / - - �.............,...,.........."...,..'�..",�.., � '' * � - (THIS DEVELOPMENT LIMITS DISTURBANCES TO THE FLOODPLAIN AREAS WHERE POSSIBLE.) - I / / / ) I - It / , ,,�, I .",�":..', I , ...%........ \ I "' -­-J-1-�_ - ___ ­__ I \ \ \ \ � .1 \ 11 ....... I . . . . . . . I . . . I I . � . . I / / ,LO , E. ESD PRACTICE #5: THE PROPOSED AVOIDANCE OF DISTURBANCE WITHIN STEEP SLOPES WHERE POSSIBLE. / / � I � / , 0 ... I., . I ,,, __ , UA " ,.,.: ... / � - I 1 1-4 - / ­.N�%. ".Vl ....... 'kP\ _� - �'.'.,.'.,.'.,�.l.",.,.'.*.'."'.'- I - DEFINED S T _�_ I ... * � .......... V""- -- �_ I - LOT 62 ... * .............. � / - (THIS DEVELOPMENT LIA41TS DISTURBANCES TO ALBEMARLE COUNTY EEP SL OPES.) _1J / I / I / / _� -1. ... .,:­�%...1.111 1, � __ ,/_ � + ,_ \ (� 9,) - .......V. I 1� '' ­ 1/'...'." �,� .... - 1 —7--,-- — — I \/ .. 1* .. .. ..... ­ ­­ ... � I \ \ ,......,.. I 0 , F. ESD PRACTICE #6: THE PROPOSED DESIGN FITS THE TERRAIN. Ir ___�_ - - '1� '�_�_�",%%"'.'..' ""*.'.*.""'.'�"'.'.""'.'., Z 1. r, r, \ i � I / / / �� ... 11:_7�.. "'' � __ I � , . .111. 11, ...... I ... I , / 1, - � (THIS DEVELOPMENT LIMITS LOT GRADING, HAS MINIMAL DISTURBANCES WITH THE PROPOSED ROADS AND PLACES SWU FACILITIES IN / / __/ - �; � ......... �%%,­ 'V.'.'.'A .... �.. "I I 11, ..... .... . . . / ) / / J r \ .I.I..".I........"'."... ". 1%, , . \1 . I ­ � 1:1 ......... . 1, / / I I EXIS77NG LOW AREAS OUTSIDE OF STREAM BUFFERS, FLOODPLAW AREAS & EXISTING POWER EASEMENTS) .� ­'..''. � ... ­ - I I ...... 1. ­ .... �. I b I ........... 1. � I., - / / " I I \1 __ I/ � / /.. I .... ­ ... I 1. I :I'-- . .. 11. I ..... I ..... 11 G. ESID PRACTICE #7: THE PROPOSED DEVELOPMENT IS LOCATED IN LESS SENSITIVE AREAS / I � � � ", - ... . ....... _'. - I. �__ _/ � � � /�11_ \ X 1\1 11 %. .1 '�.V.".'V ........ . . �� .......... � 1, ...''.. . 1'� . . , 11 i \ t . �, .....,..� ........ tr� - 1. - I ­ I... . --sag. - /_ �,� \11 � . _ �. ... - � ... _ . I / / I / 1-1 ....... � I ... - � ... _ . I I ,EAM - /_ ) . (THIS DEVELOPMENT AVOIDS DISTURBANCES TO THE MORE ENVIRONMENTAL SENSITIVE AREAS, INCLUSIVE OF THE STEEP SLOPES, 57REA BUFFERS AND FLOODPLAIN AREASJ� � ,/ 1_� ./ .. ..... ''. ,:�:�:�::,- -.-.-�:�:.:,:-:-: - � ....... I .... I ... � E i .... ... � ­ I ..... I .............. � : z ____�\ J� /I _, ­ . I... , I I ... ��.....,.",""......"�".,..�......�...,.,...�.. - �, I __ 1-1 -1 / I ... ­ 1-1.1. , _. -524 - '. -/1 - i I I . H. ESID PRACTICE *8: REDUCED LIMITS OF DISTURBANCES 1-1 1-1 �'. .%.%.� V..,.. . -1 ."'...V.V� ....... ,�' . - �, � - 4 / A 61 ) / / � . ....... :,;,; .,,.V::.V.. ../ \ I �, -_ r � ._-1 ) ,_ . I . ,..`,� X., I I ...... �,.­ 1( I/ � I ____ ­_ I (THIS PROJECT CLUSTERS ITS DEVELOPMENT AS IS EVIDENT IN THE PROPOSED LAYOUT AND AVOIDS DISTURBANCES IN THE MORE - X __ IV.. I � . � i�� . 7;�v * . . , I , ..".."...,...,.,.,.,. 1. I t I � r 6 . . .... .. I I - -------h Q �1 It __�_ Af`��,' a!�,Vfrt�OT . EC . TED' I * , * ' ' ' ­.'.'� . .','. . -,-- ---,,� - , � / SENS177VE AREAS ALONG THE STREAMS.) � �, el,��17 -a: . - ... 1. I 1. � I / / I . / / / . . " ' "", '"' / --- . ... v,A _.: - 1. ESD PRACTICE #9: PROPOSED USE OF OPEN SPACE I / / - �_- I - - E , . :��:.',_- - ��.­' __ ., _ I I I ... -1 I , , , ''' -.-, / / ', .... . .. ITECTIER-FROM.'-v, . � I - .­ --,-,-- i _�_� , , - .���-�'.-*,.�'�:�:�� ...'... --- 1, / . � I 1. 1. - ,$F,Aq . %;_� - ."', _ _. R�6,,'� / . . HE RIGHT-OF-WAY AND LOTS. THE - - // � \-, /,/// - ._ . -,,, �/ � .. I - (THIS PROJECT CLUSTERS ITS DEVELOPMENT AND U77LIZES OPEN SPACE OUTSIDE OF THE LIMITS OF T ..'...".1 - �%,.F.6T !�5U VY_L�4r , CLUSTER DEVELOPMENT STRA TEGY YIELDS OPEN SPACES IN EXCESS OF 257.) __ __ / // / � -, _ . .,.,.,.'1 , _I` / - ­ - - ­� , I I \ / �,`� , I � I ­��- I I - � �Uj� . - I ____ --.-, ___ - - � J. ESD PRACTICE *10: CREATIVE DEVELOPMENT DESIGN __ - / // , I- " -"":�:�:;,C*� , ""' 7 7.q -p , I 1� / � - �', '� ­___ --- <�*** 11 \ -11, . , ,_ - LOT 60 ____ k�, � .... ... I .... ;'V. '. � � I... ,.�..."'V,V"'."'. , � ... � ...... I __ . . ..... , - . I - ---_- - � ,�-_ '� " '' ..,. �'..%..." ___� - - GRADING, I I 1�1 - I �, ." / I -1 (THE CLUSTERED DEVELOPMENT NTH SIGNIFICANT OPEN SPACES, COUPLED WTH THE ROAD DESIGN RESULTING IN LIA417ED LOT // 1. .. � , �, �'.. ...... - l �;. I �: �, � - PROVIDES FOR A CREATIVE DEVELOPMENT DESIGN THAT LIMITS DISTURBANCES IN A LOW IMPACT FASHION CONSIS7ENT WITH CHAPTER 6 OF � "I'' ,1. '�_,"V .��.,..­, / 1 ___ � // / / N� - A. � I , .1.%1.V'...,. - ." -.-- - I �I.Vl' .."'.'' I .. I � " I . _ _ 11��_:�" I I I I I I I I I , ..' - � � I - THE 2013 VSUH DRAFT) 11. .. "'.......'... 1_..V,.._,%.'%1 �� . I I __ _ _ V / / / _� .il'.�' -, � .!�� %\ t / / I I _K� ESD PRACTICE *11: REDUCED ROADWAY WIDTHS AND LENGTHS I- // / / � 1-1 .V.�,: '' .,Z�....1.'%1,.'_ __ 1. \ / LOT ( I . . �... 17'."'. -, \ � I / I .. I ... 1. 1. . 11 I � ,l.%1*" .... .. � , , , , / / , - I HE PROPOSED PLAN U77LIZES THE SHORTEST WIDTHS ALLOWED BY IADOT ALSO, THE PLAN MINIMIZES THE LENGTHS OF ROADWAYS BY 1-1 . , � I .11 . . �. -%1...1..1... .. .,..]� .. . ;-I'-- _____ _1� � .X-11 I : pl.f_��'.V.'_., If. 1 I I ­. ... ... "i,� � __ z HAVING VARIOUS CUL -OF -SACS FOR LOT FRONTAGE AND DOES NOT PROPOSE SINGLE FRONTAGE LOTS, MEANING ALL ROADWIA YS HAVE ____ 1_�) "I -1 -,� . , . . I � ,/ 11 , -7 .. (T _// / / //�) , . � / \ � . � I LOTS ON EITHER SIDE OF THE ROAD, HEREBY MINIMIZING ROADWAY FRONTAGE PER LOT.) / /,�� I I ..IIII.� ... _'_ � .... /,. ,, - .." - ,-;!t;�,- __ � f I I Jil __ . . I - : 'N',//�� "'' ��.,,�'� , ­­/.''...... I . ----. ­ __­ /,I . " , �����:�,!.:�:.�,i.:.�,.,..",�",.,".,''�".''.*.* . / I 1, / __� I L. ESD PRACTICE 412: REDUCED IMPERVIOUS FOOTPRINTS - �-�y:,�."--;.. ,e , i � I .".. ..".." .1.7.1..'�,� 11 � 1 7 ­... .. ......1. 1'.1.11 .. ­'� � i � I ­_\ "I I . . , < . ERE A41NIMIZED TO THE FULLEST EXTENT POSSIBLE.) �__, 71\1 /// _-, -- / , , . � - I , - /. � , ..'/'.'.' .... / *­�`_ / i 1 i I / ( I ... __--l- / (IN A CCORDA NCE IN TH ESD #1 1, THE ROA D WA Y IMPER WOUS A REA S W \, -, � ./I � .I: -v 111.1-1....... _____ ,_ � M. ESID PRACTICE #17: USE OF BUFFERS IN ,-, / � __ .fv....'v..., I 1. ­,./�:/-:-:�.:./.. 1. . I � ____ ... I � � I � ''I - Lo 9 , I , . � I:.:,".:.�, I � \ IN, �,;_,�'�'. � -I .. I �', 1. I 1. 1/. I 1. ­ .1 '1-11 / //) I � ,� " __ - , �:.�:.:,��.�,:,:� , , �.�j,.��,;,,.3 :; . � I � - -1 \ PROVIDING INFILTRATION AND STORMWATER FILTERING OF POLLUTANTS AND SEDIMENT RECYCLE NUTRIENTS, AND MAXIMIZES ON-SITE `N -- / / i - \ H ESD #17, THE NA77JRAL SITE FEATURES OF FLOODPLAINS AND UNDISTURBED VEGETATED AREAS REDUCE RUNOFF, IN 11 � I (IN ACCORDANCE MIT I -,__�t / / � ""," , ; )(-71 1 � I ___ I '' �.. �',._ ,� I . ,/V / / ­'J� I I "'r I I " ..­V�!'�'1'1­4. P-K, ,­,�, /. -, ", / ) � 11 \ 11 / ... /�:.�./����/����:.:,�:.-,,.��-����,��>�,� ... ........... - -,\ / I / / I ... � 1�9 ... : . 1��,11,'X� .... �'...�',.% ". -,P / � \ \ �,Z ­_ I � _1� 1_/ ­,­ � ..... X / ; / I I I � STORAGE OF STORMWATER.) 11 / I II "."'. . I.. I 1. . , , I - � I . / I ! I I ,1 1. ... .. N. ESD PRACTICE *20., USE OF BUFFERS 1 ", "I / . I .... 7 %y: . / \_ . ,4 / //�,/ / / / , \1 \ \ - ""..V, 11 _\ , I I /111 ­ .. ?. , // I, , / / / ... "I � "I - 1-1. `NLOT 11 (THE PROPOSED GRADING PLAN AND VTRM WATER QUALITY CALCULA 77ONS ALLOW FOR THE REAR POR77ONS OF SPECIFIC LOTS TO DRAIN I, "// I . . , . I 114 .� ...... �� �<' g.? ... ..... .. . / / \ x, , . . . , , . ��/��.,_ � I . - , , . . �/, , * " / . .%... ..., . . .. -..�..., '1� _', / . , . ,; - - � I // "I / ,.","...,.., \ z / ..... . / / ,.","...,.., . ­ __ A WAY FROM THE ROI F \� I .. , I " I 1 ; I / - ID ANDIOR HOMES TOWARDS TO THE BUF ERS.) IN, 1-1 /I ... � I / / // I I- _____.1 _/ 11 "/ ..... ­ � . �, I I I- . I . I . I I 11, I * I I I / 11 �N. / / I / 1. /' I ...... 11.1 "."'. - . - ', - _;:� ( / .:_/,..-z,�/ - , / / � � ,'�9 ��%% - 11 \ - - - . . . . v) .:/. ., , � I ­\ 1.1.1.%, / + � - - I � I / / . ­ :::-:'. ..� . 11, - f' ' - *4 4f# // ,i,','.� �` , ., -,��:: :J/ / . I , ,.'....V. I/ � \�, \ Nt "",,/ N' / , ::::��:�:::�f .,,.�: .,:��. / --/, , � � // z / . -:.,]:�:,:��, .'..-."',, �_, 5 IZI, ­,.­%%% '-'-x � � .., --�:,/:::�.`::"".�:�:�:: , " ... .., i ..... I - I General Construction 'notes or Stormwater Management Plans " I.. _'­)�'."'_ / ... ��::::::::::/. ::::::_ __ ,/ _�' - " , \ _­ ­­­ ­1111.�. p ,, , ----- / I , � -1.1— \ V , , J 0 , " - -1 �, , , ,�'' .. '/ .... . , I " / - .*..,.,.:::]::::�:�::::::::.-,;.J.::�:�:::::"::::...,,I I .....,.,.�n ­ - .....�.. n - I z 11 .1 .... i.l. All dams and constructed fill to be within 95% of maximum dry N, ,--- \ \ I, / \ 4v, �, .... V. , .,/.. I . , I I , / / 1, , i // / i", / -1 ) / .. ,,\ - I . . , . . I . � - .1.1 \11 � �.,./-. - A.", - -/�"�.,:::�:�:.'::::::���:�"1"..:,�, , I .i -1 density and 2% of optimum moisture content. All fill material to be / /I �_ \ * - .11.1 � , I Ill -,/, , \ / / / / ,, I' i�­: ..... X 1. 1%V.% ......". � I .*.,.,. ... /-�:��*:�'.�,/,:.�::��/����/�*�����:.- - I f 'WT 54 ".%V. ..... - I - - approve / 1.1'.� ... �'. /...." t � t "I / I I I .,.,.,.,.,. __ . ....... I / . I .... .. - .... .... ...... .. __ . I ..... . 11 ... I... - .. I ... - ... d by a geotechnical engineer. A geotechnical engineer is to be / / � 1-1 \ \/ __ __ I /':-�./ . . ..' /I . . I.. 1.1 / /_ � 1 / I 1 , 1, I' I I // k, .1 ... I � , I / \, �% I . - 1. ­ , , . , I , . , I , . � present during construction of dams. � "' �_ � / Vol , � - - .....'��.,.:,:.�-,.,:../"�.�,�-�.:/: ! 1, / / . / DA 1B1 �. ...... - I ­....... � ____ - / � \ '� � -i ..... [:�:: :::�:J�:" / / / / � /, 1 1 ,f f I I \ - ...... . -:��1.1,1: .1-1/-1. k 11 .. .1 ..: - \ c ...... /� ..... ­ � - . . /I / , � (7REA TED) ' ........'�.,V��,�.,...,,... �'-*/.% ... 1� .,--- \ ...... ....... .. .......... .. / I I 11 / I \ I :1:1�.`%` - , 2 * Pipe and riser joints are to be watertight within stormwater , /l / , / \ " / , , , /' / / �\ \ '� I/ � � � M ment facilities. I/ - -11- I— .1 ..... ...'' '' / / " , \ / I 1, J '/ V ,/ / TOTAL \ , / - ­ � ...... I . � I / co I Ir I � I : ". *. "�,�.(,O,..:,: , �/". �:: � / I I � \\ I . 11 " I I / // ,\ 1P Di A 4 '.....- I ­­ '.�/­ � -USTE 3. For temporary sediment traps or basins which are to be converted 1_\ -1, .. . i. 11 ) ; _ac� onage \ / \ - - /, - / /� I I 1�� ,\ / - _- / '... / I ,�/ I 0 ,/ J UNA :D �= : IN, , . I / I / I I I I i / " __ � ", - / Y I . - ;iC.:.: , . I / 1 ­_ - 5 - ) .. management facilities; conversion is not to \ \/ , - .VIV; , , // I 1.1, / �, - , to permanent stormwater \ / :V�'Ak-�� /. f., �. - '�D ED VRRM �DN=79 / \ "Ilir �-% ", ../.-,v.1-�.,-- - / \ /� I I �� , rN= "," / \ \ . . :,��-".-:7,d , - , / / / 1 , J 'IT I . � - --- �, , take place until the site is �stabilized, and permission has been N- \ I ��', , .� , 1 ! ! I I /'/":5�- ­ '. : I . / , � ... ... I I %--V. AU I 111.1j. ---' " .1 , � f , \� / , . '.., 1;�'.%V. , ­ I I 1 �� I , / obtained from the County erosion control inspector. IN \ I - - � - , , .,..,.,.,. , � . ­,:-� �.��:.: ..... *­ // / / T � 1 I/ ,,, 1 1 � \ LOT 53 I,- \ " / , / ,/ I f� "' \ \ \ / I . � . ........ ­ � - �:�Y:::��� "? `.. 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I :H�NNEL FLOW4 a5i: ft/s (Tc=o.o� hrs.) , , , , , , , , .." , N ) , ", , .- ��,�� - �/,/��11 �11��' _`� , � / _____j ", / / ,�- 1___�,_ �11 /, " � 1, ,_ �'� E,_ ;-�,. � I \ � , . I , , , �� / 0 ., " / :1 �� � 142098 , . I., I- -1 4 '4`�l ,,, ,'?-- -3 1 � / ­ e / / ­­� 11 , \ I " � -r,,'t�?�, I ,��� --- I I "I -, , ,,�,',,�,ly�,�,r,,,�?,�l,,',�;":"�5 'L �� / \ � � . .. � 1� 1 _ - - , � " � � -` I / ____ - _. � z , I I I t / \ / / " I +.'��;�" / F� i -l" , i �K� � .r " � ��11 I\ \ ,�� " , , , � ,� �i , -11" :22,��,,,�.-.,,., ... _­'. � I / , , - , - ­ I I � � -1 ,_� I 1, I "I ,� I I , 17, , . - � � . I I __0"/, ,,,I I � I I z " , I M , , , �, � , vx,,',,'/ � ,� � i, I F,11- I / � ? � , ,,,� � I I " 1�. — ,-- � -f /;( �� / I \ - - i I \ \ � I !�, \ � e / __ 11 / -1, I 11 I - , I �� \__1' �, / � ,V.4,,"� " / I 1 / --- �� �,,,,K�'0',,'�!�,', �'� , 1� ! " . "k- , I . ----,,!'- 1-1 I 1:��, N 11 __ J ' - , � �-� I" k`_�11` ��' "-- k ��i �", � : �� * // I ,; � �1, . I 2 " � I , , "', ( r- 11 = 801 � , DA'D' � 79,3 6,75 0,62 1 25 �-,.___'.--_,,:- ,1 1-1 11 ) 11,�111,�, I ----- ­ , . , i " �1 I" `[ � � ­ 1 �,,,�,,.1,4---,>�, 1 � �-,,,,,, �)4 I �,','�,,�],,�..� �,:��i�� . \ '- " /' / , ��" 11 / 4 1 " 1XX -, Q * * , j�::�I� �,�ij�, .. ���i�!I� �.. ��,,, , -Y, , "' ,.;,X,-'­�y.,­y,--�, i � �1� .., I / � 8.16 4.67 5.63 1 � I I " /i 1 / " "' , ,�, �� � � .­­ . I I/ �/ � , \_ -,J, , � ., � \ ,_ 1. DAT' 61.9 1.41 1.17 1.36 N�,,�\ \,� ioo'OF 0 j/1 I if / // 1__�, -1, K�-­ I . : �//Jy/ //--\ � , i , -11- "`N�f __ / ".. � \ 11 I/ . h / 1�_,� 1 "' � ,. __ I . I kk . 1, 9 ,,�" , " . I __ ___) � 19 L - L mo� hrsj , , I , /// / 11 I _0 � 11_1�1�'1111_ t " � I . i , "I i i I- . � - - , " "I , ,g%'-"-'- � � / , SHEET NO. � I __ 250'OF %N�, FLON r,s.y I / I � � 1 � I , - - \ � / ___11 � f I " - a 'C' 3.57 i 370' 1 - /I // �1,/ �,'�X��,�P,"".,�_11,�,,� I � -, ,, ".., '1� / , IN, � I ,/.fl I It. ) � I I I z / ', � I -.1-1 ... -.11 ­.�­­­ .... ­ NOTE: ", � //"-// ----\ / `<` 11, -A , �_ �L' ]DA 1 72.8 � 8.47 10.45 11.67 1 82.8 1.55 � / / 17 4, 'I-.-- , . - , '/ / / ", 1� �,-, " � � i il,�III .-II.I. ­ / , . I 1"' ""', "" "I I '' . / Il / / I i ! ­__­ � " � -HE PROPOSED LIMITS OF DISTURBANCE SHOWN TOTALS 47.4 acres. __ � ," '1� \ 4 � // 11 � I / �11"`�.' f, .......... 1 � !!, � t 1:­�__ NKN�w ��A ­ V. �­ � �. 1/' '11'1_�111_ -1 ,� � / / - ,/,/ �11 �� — �, 1 � __... � N__-� I I � ---,,,�'\ � � - - I ... I .., . I I -- I Total= 48.45 Total= 48.45 - I , �� � - 11.1 ­ 4 / / - - / , 7 . �.:_ - . - I A., , ,:� '. "1 1�/ / Iltz: , / �����,­,­­­i��­' ,1111___-'1,1_1-,. -F-11-1 1-1-1 I / I - 11 , - � 7 , �, 11 I/ /,//� , , -/ I / � \ I � , IA_ - 11 I �� __ I- ___ - _,__ z 1, � � �Xo \ 'I-,' . �, - - __ i I LEVEL I RETENTION BASIN 'A' \ - " ' yY 62.o0 .00'Bw ITiil' -_`- ;' 7 _._. 0 _ _ (SCALE 1"=30') - - - o ll+ii i _ -_ 1.1-- / / / j 1. ___-..._.... i . i \ 1 !l / t I�x // I il � ,, 46y.oa°TW r + -zzi , i _ _� \ ' \ i+ -'FI 1 a PROPOSED 3og'LONG RETAINING „i ° /- _ - _ .�~��,�� - �;`��`� \� ii!I I-\ �� WALL wJ VARIABLE HEIGHTS j __._..__ �� _ 1 'r/ \ EXPOSED WALL HEIGHTS, NOT / INCLUDING FOUNDATION, ARE \ \ / //� r __'__.` ._,. ' _ _. ____ ! , „.• j. >HOWN WITH SPOT SHOTS. TYPICAL � -H. �1I� -'_ ABOVE GROOUND WALL HEIGHT=7.5' // Ir r % .. ,1 11 i, - rF % /. _ �_- _-- � .--- t _I � i I � -xo' WIDE G DED EARTHEt \' i� �\ /11 ,!' . • `' j j ACCESS RAD. MAX. so9b _- ,/ y _LON%ITUDINAL SLOPE & 29- _ - -.. 1-._t_1 tt ! 1 Il s / 1 f j \\ r / �,. PRO@-05EI7-. i 1 ' �- 4 � !.I! I , CRO sS SLOPE-- -... ` "' ' / ' .. I , / w.MWSE= s` MAX.I. A - . Iril II / / . 45 . (.I'll ---/"'/' - /,_ . T \ / / 1 ' ///_ / J fi'/ / ! i.:..:/,:.:_..._A / , : _ __.._ `:.�__ ,.._- 'k , ti_ _r... •t it 4. / _w,_ .. _ \ `i ,- , Y . -s /f - 4� N _ _ I -=i l I- _ -- - i I / _ ., - _+o _ -i I1-Ili.r. + ~ \ . _III-- I ___.11, / / S TY ENNCH AT 1 ` -. --- / • AEE •'`` ^ - - \ / FOREBAY PERMANEN f `I _til �.I i=' I ; x @ - ROO.L-ELEV:'45s`IS.4i WIDE,'2' DEEP ''` -r = = -,- - j i I - `- _ , 'r - - _ -1 - _. ` x _ - - �_ r �m . rr- m tFl; i I1=! (I ' - </ PROPOSED 64,00'-0%8-_ .y 0 / _ 1=; - -III- I ill=�� =t I,1=� _ _ __C} : III RCP'BARREL AT A.. i �� / f �i - I� I mill L. l=ill (� tl+L�W o.5oS4i (INV IN- 432'f 1i� ii Il- II ID' {� I_ c,s I UT -4-6.o0') I-1I:q I I 11111 . _ _ �f1 Ilil -` _ - PROPOSED VARIABLE -- iI^ I( ✓ f- ( fWI�HSWM&ACCES'. ___ ._-_ ILII / I .-____ ____ __--.._ EASEMENT if 4 , r / �� � ~ crJ/ �' 457.00E �- _.__ _ f �, \ / //% j .. �- / � , e i �/J (O...� I & 31, _ / J �\ \ ! 2' WIDE FOREBA P i /0 no- (0 O 'f \? ' 5o WIDE PROPO ED GRASS SEE IS SHEET FOR , OF DAM ELEV. =452'w/ LED PROFILE OF � so°WIDE RIPRAP LINED LINED EMERGENCY SPILLWAY (PROPOSED VDOT #3 COA GGREGATE � �^ �� W/ 4:15IDE SLOPES & CREST OUTLET PROTECTION w/ GEOTEXTILE FILTER ALIGNMENT (TYP.) / FOREBAY SPILLWAY ELEV-454-75' FABRIC UNDERLAYMENT & VDOT STD. ES -1 \ ' u ``.v, /V j CREST ELEV. 450' (L=6', W1=4.5', W2=10.5', D=2' MIN.) .` ' � PROPOS D 4' DEEP PROPOSED 0 6" CL. III RCP STANDPIPE w TIRASH RACK SHALL SERVE AS / 3 / \ I, FOREBAY TO PROVIDE THE RISER STRUCTURE, SEE TRASH RACK DlETAIL ON THE NEXT SHEET, RISER STRUCTURE SHALL HAVE A RIM ELEVATION=453.75' WITH AN 08" '\; PRETREATMENT LOW FLOW ORIFICE INVERTAT ELEV. %':. TO PREVENT FLOTATION UPLAND OF WET 45 : ! THE RISER BASE AND BARREL CONNECTION SHALL BE FIRMLY rsr 10' WIDE TOP OF DAM ?'POND• M DED fi"INTO AN %$" THICK CONCRIETE FOUNDATION THAT 1S s< f /fJ%j ELEVATION=456.5' , .�-_- ----- 6k6', AND BURIED BELOW/ GROUND. ,, / f .'. RETAINING WALL NOTE: �< I '101 NO CANOPY OR UNDERSTORY TREES SHALL f 3 NAD 83 , BE PLANTED WITHIN TEN (10) FEET OF THE r` �� '�- i . BACK OF THE TOP OF THE RETAINING WALL. � _ :, _._: ? 6 LEVEL II RETENTION BASIN 1B' .. ' __�__' �. _... _. r - 1 { (SCALE: 1 "=30') . . . . . . . . . . L . ✓ L , . . . . . \ . . . . - - / • • PROPOSED V,ARtABLE'V ' "' . • .r/ _ , f . . . �' `// . PRI~SERVATION EASEMENT \ . j/i " 11/ ' '�. . / : ; 11 ' ®�, \ . , ! ;! P,ROPOSEb VARIABLE-WI[-TH :j/ . - - 1\ \ t l I � "`'' .:..;- ' /SWM&ACCE9 EASEMENT. >- . , . . , . . _' / ,4 ..:.,. / ROPO D 4' DEEP FORE6AY'TO l � \ \ . -" ^~- ,� / f P IDE PRU4 EATMENT ' _ ��__ ' - _ ' �� � -. PLANA OF WET POND. ' �/ ~- \ N 1 ' ` � f f PO R ESM 1" \'. , - -- ''^ II � �� I - o - / r% < 't WETLANI�I S ELF (1 / r- / - - __ �: 1 ! _ __ D MAX. PONVDI G DE H) ' . 7 '.- ''� / ,. ....---- r ,.\ - __\ Y z giOFp \per .OF P F E0 / / _ co ,Vsi 5 �ti`ti _ 4 _ _ _ _ _ _ - J - O�E� 't SEN ?r�'f I'� �f w . _ -'i _ _ _ _ _ f ` P E THIS S4 -E -T FOR - - r _~ / SCALED PROFILE O / J -1 1 --------- 4 G/ \� kJ t ��. �` ALIGNMENT(TYP. / � --_-- P \1 11' - .50% ' / /` /- .. PRQPOSED' , ' f I1-$, OF , a , - /----- \� MWSE =478 i �' ? / rt t�• \ . 5 ... 10' WN E TOP _IF DAM,. --_-_ v' > O - . / j i-_ I. -SAFETY BENCH AT ` - (� t�%.., 1 _-_.--ELEVATION= .. I I , � � . � - 11 - I_ ftn _00 � � . � 4 , � I. . � .� I � . I I .1 I I � I � 7 -1 ,-e� , I , _. � I I , - , _- _- 7x, I � , -N o � _: I - �m rm r I o to �:4 atitobre �I 1'I , ","r ... ,. TYPICAL 140MOGEN OUS EMBANKMENT 112,109 �. CHI I MN EY DRAIN f ure A-1 , Hamo etwo s Emb4n vtew ,m1, ee of a Controh StormtxTm ROUND SERIES TRASH PACK (OR EQUIVALENT) N ETI~ i;#,aNIR01„5 STANDARD 60 INCH PACK SHOWN IN IN�iE iii�,AENSIQN5 8 am HOP E STRIXTU RAL, PLA" C 15Y PLASTIC U' ISS, KC, IDE VIEW I OMETRI StarmRaxTv, Round Series for Concrete Manhole _, Pert No. DIM A Dim 9 Din C Mit iD Min 00 RS -24 37 X 24 V� f8 24 cif 1&36 21Y i4va 407% S6 43 fid 2i►)i/ i 5r * S727 • ff • I s o.rrt. e L T'€IC Plastic Sautiions, Inc. i OMER PO ;f aK 4396, x*WSter:r VA 22&X M4 Wnr, Wer, VA 22W (moi Al"47,27 phom PROECT. iM 722-22-19 fax 1 1/wWW.i zr-s WdM, i°r FORE,a Npl y AMVV F I' SPILLa A, - ieo£L Ali £f r a i nIi t `�. VLUME r 9 k^E. SET, H J' i N P6-�fi ��i�+. ,P .E ,`EC'iV.-1=D :0E-7EI',4TWjN l=-xICVl'_{ 0. CONCRETE STRUCTURE DiMENSIt7NVS INSIDE STRUCTURE TilMEN$ [ON j OUTSIDE STRUCTURE DIMENSION i AV'A.Il:MLA OPTIONS CROSS SPACINIC FOR OVI�RHANO HDPE ANTI -'SORT PIA` (REQ'D FOR ESC) DATE aft BY; AFM Or!: DETAIL: 'T IE : ' S'PLLINAV X )u RR -14 ( %.ir ATER a r, _ k .- • as 1= # TI ,sin Bim';."a r` a I� i BENCH _ 1-t A .. A /1�' IaF _ ■I 1 01 T; I JLC+ r [ lf=x iF c I0 FILE. E 1 EP41 ?E 1..:1 ,L;�4. t L r I 0L,J E "L�..FE�I QI Fypi ^-ai Evended T�e'I�eati ` ai DETaii t EXTENDED DETENTION BASIN CONSTRUCTION NOTES: FACILITY PLANTING SPECIFICATIONS: LEVEL 1 1. LEVEL 1 EXTENDED DETENTION BASINS SHALL HAVE A TURF GROUND COVER, SUCH AS GRASS, MULCH OR SOME OTHER FORM OF A VEGETATIVE GROUNDCOVER. LANDSCAPING BEYOND THIS IS OPTIONAL FOR LEVEL 1. FACILITIES, BUT IS NOT REQUIRED. 2. THE PROPOSED SIDE SLOPES OF THE BASIN, EXCLUSIVE OF THE FOREBAY & EMBANKMENT, SHALL BEA MAXIMUM OF 4:1 TO PROMOTE SETTLING & REDUCE THE RISK OF EROSION. THE PROPOSED FLOOR SLOPES, EXCLUSIVE OF THE MICROPOOL & FOREBAY, SHALL HAVE A SLOPE RANGING FROM 0.5%-1.0%. LEVEL 2 1. THE PROPOSED SIDE SLOPES OF THE BASIN, EXCLUSIVE OF THE FOREBAY & EMBANKMENT, SHALL BE A MAXIMUM OF 4:1 TO PROMOTE SETTLING & REDUCE THE RISK OF EROSION. THE PROPOSED FLOOR SLOPE'S, EXCLUSIVE OF THE MICROPOOL, DEEP POOL & FOREBAY, SHALL HAVE A SLOPE RANGING FROM 0.5%-1.0%. 2. THE PLANT SELECTION SHALL PROMOTE DIVERSE WILDLIFE AND WATERFOWL USE WITHIN THE STORMWATER WETLAND AND BUFFER. 3. THE LANDSCAPING PLAN SHALL ALLOW THE POND TO MATURE INTO A NATIVE FOREST INTHE RIGHT PLACES, BUT" YETKEEP MOWABLE TURF ALONG THE EMBANKMENT AND ALL ACCESS AREAS. 4. 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. .,. 'A Z/i',^LT`s.T'_'�`.� vP PFS iix C IP,,i_;...v `.-2f� S.'�S'^ TI. n -r .YTE !'1C !tT f �;`, T E�'T f_',.1 !T1A/>; :'2^ �S?(`AetS Tl _. nr�,L`,YP!1'I! 1N,'1 4A(Ly-rr r„1 SLr,r�. r3 rc nl, y-i(1t?!.^i+ E'?,-?4AF ,r -r, P0l 4f), €fie P!,AA,NFNJT STRUC T URES (E.G., BUILDINGS) SHOULD NOT BE CONSTRUCTED WITHIN THE BUFFER AREA. EXISTING TREES SHALL BE PRESERVED IN 'i HE BUFFER AREA DURING CONS, RUCTION. 6. 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. 7, 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 NURSERY STOCK, 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. 5. 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 BEEN 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. 1O.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 DESIGNER. 13.MINOR FIELD ADJUSTMENTS MAY BE 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 SUFFICIENTTO 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. 18.THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR PLANT MATERIAL THAT HAS BEEN DAMAGED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR'S CONTROL. FACILITY CONSTRUCTION 1. AN ED POND MAY SERVE AS A SEDIMENT BASIN DURING PROJECT CONSTRUCTION. iF THIS IS DONE, THE VOLUME SHALL BE BASED ON THE MORE STRINGENT SiZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENT VS. WATER QUALITY TREATMENT REQUIREMENT). INSTALLATION OF THE PERMANENT RISER SHALL BE INITIATED DURING THE CONSTRUCTION PHASE, AND DESiPGN ELEVATIONS SHALL BE SET WITH FINAL CLEANOUT OF THE SEDIMENT BASIN AND CONVERSION TO THE POST -CONSTRUCTION ED POND IN MIND. THE BOTTOM ELEVATION OF THE ED POND SHALL BE LOWER THAN THE BOTTOM ELEVATION OF THE TEMPORARY SEDIMENT BASIN. APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT DiSCHA1RGE OF TURBID WATERS WHEN THE BASIN IS BEING CONVERTED INTO AN ED POND. 2. ED PONDS 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 AND 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. THE CONTRACTOR SHALL ALSO ADHERE TO THE CLAY LINER SPECIFICATIONS OUTLINED IN TABLE 14.4 BELOW: Table 14.4. Clay Liner Specificauorrs Source- vVirgmla Stomiwater Management Handtmk (1993y 7. UPON COMPLETION OF THE EMBANKMENT GRADING, THE CONTRACTOR SHALL EXCAVATE/GRADE UNTIL THE APPROPRIATE ELEVATION AND DESIRED CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OIF THE ED POND. 8. CONTRACTOR SHALL THEN CONSTRUCT THE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS. 9. FINISH CONSTRUCTION OF ALL OUTLEiF STRUCTURES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION. 10.THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOiLS WITH TEMPORARY SEED MIXTURES APPROPRIATE FOR THE POND BUFFER. ALL AREAS ABOVE THE NORMAL POOL ELEVATION(S) SHALL BE PERMANENTLY STABILIZED BY HYDROSEEDING OR SEEDING OVER STRAW. 14.THE CONTRACTOR SHALL THEN INSTALL THE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS. 15.ALL CONSTRUCTION SHALL ADHERE TO THE VIRGINIA DEQ POST CONSTRUCTION BMP CLEARINGHOUSE REQUIREMENTS SET FORTH IN DESIGN SPECIFICATION NUMBER 15. FACILITY MAINTENANCE: MAINTENANCE OF ED PONDS IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE POND. 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 FOREBAY. 2. MONITOR THE GROWTH OF WETLANDS, 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 POND 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 POND 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 CHECKTO SEE WHETHER VALVES, MANHOLES AND LOCKS CAN BE OPENED AND OPERATED, 9. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE POND FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING, AND MAKE NEEDED REPAIRS IMMEDIATELY. FACILITY INSPECTION: MULTIPLE INSPECTIONS ARE CRITICAL TO ENSURE THE BASIN(SO 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 EXTENDED DETENTION BASIN'S CONSTRUCTION PROCESS: 1. PRE -CONSTRUCTION MEETING 2. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) 3. EXCAVATION/GRADING (E.G., INTERIM/FINAL ELEVATIONS) 4. EXTENDED DETENTION BASIN INSTALLATION (E.G., INTERIM AND FINAL ELEVATIONS) 5. INSTALLATION OF THE EMBANKMENT, THE RISER/PRIMARY SPILLWAY, AND THE OUTLET STRUCTURE(S). 6. PLANTING PHASE (WITH AN EXPERIENCED LANDSCAPE ARCHITECT PRESENT) 7. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) _, T'errrteabitity. ASTM D-2434 Perr'treability ASTM fD-24:34 Cn9sec 1 x "lQ Plasticity Index of Clay ASTM D-4231424 � .l6 \ Not less than 15 Licluld Limit 4f Clay ASTM 0-221E % Not less than 30 Clay Paoticles Passing ASTM, D-422 % Not less than 30 C:Iga. carnpadlon ASTM D-2215' VW Lt{f j k'�a4i 9Ea°,4s of stantlaril p Octor ti_ Source- vVirgmla Stomiwater Management Handtmk (1993y 7. UPON COMPLETION OF THE EMBANKMENT GRADING, THE CONTRACTOR SHALL EXCAVATE/GRADE UNTIL THE APPROPRIATE ELEVATION AND DESIRED CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OIF THE ED POND. 8. CONTRACTOR SHALL THEN CONSTRUCT THE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS. 9. FINISH CONSTRUCTION OF ALL OUTLEiF STRUCTURES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION. 10.THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOiLS WITH TEMPORARY SEED MIXTURES APPROPRIATE FOR THE POND BUFFER. ALL AREAS ABOVE THE NORMAL POOL ELEVATION(S) SHALL BE PERMANENTLY STABILIZED BY HYDROSEEDING OR SEEDING OVER STRAW. 14.THE CONTRACTOR SHALL THEN INSTALL THE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS. 15.ALL CONSTRUCTION SHALL ADHERE TO THE VIRGINIA DEQ POST CONSTRUCTION BMP CLEARINGHOUSE REQUIREMENTS SET FORTH IN DESIGN SPECIFICATION NUMBER 15. FACILITY MAINTENANCE: MAINTENANCE OF ED PONDS IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE POND. 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 FOREBAY. 2. MONITOR THE GROWTH OF WETLANDS, 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 POND 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 POND 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 CHECKTO SEE WHETHER VALVES, MANHOLES AND LOCKS CAN BE OPENED AND OPERATED, 9. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE POND FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING, AND MAKE NEEDED REPAIRS IMMEDIATELY. FACILITY INSPECTION: MULTIPLE INSPECTIONS ARE CRITICAL TO ENSURE THE BASIN(SO 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 EXTENDED DETENTION BASIN'S CONSTRUCTION PROCESS: 1. PRE -CONSTRUCTION MEETING 2. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) 3. EXCAVATION/GRADING (E.G., INTERIM/FINAL ELEVATIONS) 4. EXTENDED DETENTION BASIN INSTALLATION (E.G., INTERIM AND FINAL ELEVATIONS) 5. INSTALLATION OF THE EMBANKMENT, THE RISER/PRIMARY SPILLWAY, AND THE OUTLET STRUCTURE(S). 6. PLANTING PHASE (WITH AN EXPERIENCED LANDSCAPE ARCHITECT PRESENT) 7. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) Ver DEQ STORMWATER DESIGN SPECIF ATION 14�; ,,SECTION,4. TTIUAL.DE i UL S dipp6R 5HRf IF ,wETL,k"r'a fLO/RL Z v a ETl t iG ,,J L to--t-ow pl;r v, iz Rw?,X r 19,, EFII"L was f �rf'R1; TV nEf Tt 1 ?- 1 a` aFiE13dV i1'IEPEq 7�r?, 6,iJs 14.2`F Iro MOL ONZ 1FiEFEP�"TC°TABiE' ALQIj1P-SA9NT`�I11 11 1 A 2 Fr R:VC_` t1C>r1r ,_1 :»-w-----,..�•. � � '�, �' I "-1 �H. it' f aiEJvtEf irB? -� `:�` - i i} �, r"' � "'-.`�-`:.- 'x . I "it 4f ,rub ]� aF r it 4 -1 Ii I YW. '� 1 ' 1119 1 pigr , `` i � . 11 I 11 ( - _ I r /!t1--/� Lm:r'ac» , t It,r '- F01,40 AIERA �t .r '�.'w� FLI `s t' �r :T' A,,yt{�iDt l<�;�E E'fFl}'^�' tt• F l -r0 "fit it{�:I �.�i. -'FOR 0. Atl,'OLD . � '.Y ?P,F_-�"9Pi,F�rj TAi9L9'14� ,Q .R_14 LI F4�'�'9 4' �rJA 1�a X= -H L2 R'ECT0j;;iEis%r?1,tT i 1. I 'i-����ISTWeA . 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P1RQF1La 1"1VITOk VPPE i°IdLif i� ETLAiLl�l'r AQUTA.TC 1,11K.1 H 4 I I I I I _� � \ �� r 1 �1-7,7_! i -";7�1' °7� ,'sj`--»�'�rI...f-1 �;-.[I 1t -t .� _.s..-.__..__.._._. x �'t .»�.r {� 'o ,1d' t 11 fly".^.`l i.�' �2 Y i.Lr 7! - : f ._.,._ ,�,� ` HIGH ,��0N "R"{'y', 1 eF_ 11i7NO N0, ,, L i �� {I _rI .i t, I I�.._ I r ;` ! t i Ir I I .., I ) _ � ' T s i Tz e'u✓L� a {i.x'� i I,. i I. -:,t, s ;� _ t�� - L t r „. ii F iI.r L11 t i [l ir) I l)r Il �) FII F, ls>3 y l P i:f FL h� 6 6:1""'!., I'' v i ins t 1 Tit^ I 11 r€t i.. r•^f k ,1!' it Ira t 7 2 gE'r`E� T � :SEC' rt r G F0'1 ' I AIE L2ItA ' ir'oi!A _ POOL _ Vi' LLIME , AND F_E;2'n,,f1,tkND'Pi' ,AKOI i C14A.T4r�[L: g1 ECrtDN'aTf nt ,3Ei'.o .a Fig llrre 14 't. Wet' Pond L Siglil cftematfcs LIVET POND CONSTRUCTION NOTES: FACILITY PLANTING SPECIFICATIONS: 1. THE CONTRACT0R: SHALL CSIABU SH AN D MAi NTAI N A VEGETATIVE COVERAG E i N TH E PO N D AN D ITS BU FF ER. 2. THE CONTRACTOR SHALL ALSO INSTALL THE WETLAND SHELF AND AQUATIC BENCH PLANTINGS, AS REQUIRED, AND USE NUTRIENT RICH SOIL IN THESE AREAS TO PROMOTE HEALTHY GROWTH AND ROOT DEVELOPMENT. 3 PLANT SELECTION! SHALL PROMOTE DIVERSE WiLDL IFE AND WATERFOWL USE WITHIN THE STORMWATER WETLAND, AQUATIC BENCH AND BUFFERS, 4. WOODY VEGETATION MAY NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEET OF THE TOE OF THE EMBANKMENT NOR WITHIN 25 FEET FROM THE PRINCIPAL SPILLWAY STRUCTURE. 5, A VEGETATED BUFFER SHALL BE PROVIDED THAT EXTENDS AT LEAST 25 FEET OUTWARD FROM THE MAXIMUM WATER SURFACE ELEVATION OF THE WET POND, PERMANENT STRUCTURES (E.G., BUILDINGS) SHALL NOT BE CONSTRUCTED WiTHiN THE BUFFER AREA. EXISTING TREES SHALL BE PRESERVED IN THE BUFFER AREA DURING CONSTRUCTION IF POSSIBLE. 6. 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 P;lFNTCROOT PENETRATION ANDTHEEFOREMAY LEAD TO PRF A T RFMORTA T.Y CR i SS CF VIGOR. F . PLANTING SHALL .__ BE THREE TIMES DEEPER AND WIDER THAN THE DIAMETER OF THE ROOT BALL FOR BALL -AND -BURLAP STOCK, AND FIVE TIMES DEEPER AND WIDER FOR CONT AINER-GROW1-3-1 OCK. 7. 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. v'i�iTRAC OR REQUIREMENT I S 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 NURSERY STOCK, 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. 5. 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 CONSTRUCTION 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 BEEN 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 DESIGNER. 13.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. 18. THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR PLANT MATERIAL THAT HAS BEEN DAMAGED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR'S CONTROL. FACILITY CONSTRUCTION: 1. THE CONTRACTOR SHALL USE THE WET POND AS AN E&S CONTROL STRUCTURE, IF SHOWN IN THIS MANNER ON THE APPROVED ESC PLANS. IF APPLICABLE, THE WET POND SHALL SERVE AS A SEDIMENT BASIN DURING PROJECT CONSTRUCTION. IF THIS IS DONE, THE VOLUME SHALL BE BASED ON THE MORE STRINGENT SIIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENT VS. WATER QUALITY TREATMENT REQUIREMENT). 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 WET POND IN MIND. THE BOTTOM ELEVATION OF THE WET POND SHALL BE LOWER THAN THE BOTTOM ELEVATION OF THE TEMPORARY SEDIMEN T BASIN. APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT DISCHARGE OF TURBID WATERS WHEN THE BASIN IS BEING CONVERTED INTO A WET POND, 2. WET PONDS SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THEPOND 15 COMPLETELY STABILIZED. IF THE PROPOSED POND SITE WILL BE USED AS A SEDIMENT TRAP OR BASIN DURING THE CONSTRUCTION PHASE, THE CONTRACTOR SHALL DE -WATER, DREDGE AND RE -GRADE THE SEDIMENT CONTROL FACILITY TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE. 3. THE CONTRACTOR SHALL ASSEMBLE CONSTRUCTION MATERIALS ON-SITE, MAKING SURE THEY MEET DESIGN SPECIFICATIONS AND ARE PREPARED AT STAGING AREAS WHEN POSSIBLE. 4. THE CONTRACTOR SHALL CLEAR AND STRIP THE PROJECT AREA IF REQUIRED TO THE DESIRED SUB GRADE. 5. THE CONTRACTOR SHALL INSTALL E&S CONTROLS PRIOR TO CONSTRUCTION, INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION PRACTICES. ALL AREAS SURROUNDING THE POND THAT ARE GRADED OR DENUDED DURING CONSTRUCTION MUST BE PLANTED WITH TURF GRASS, NATIVE PLANTINGS, OR OTHER APPROVED METHODS OF SOIL STABILIZATION. 6. THE CONTRACTOR SHALL ALSO EXCAVATE THE CORE TRENCH AND INSTALL THE SPILLWAY PIPE. T THE RISER AND APPLICABLE OUTFLOW STRUCTURES SHALL BE INSTALLED, AND THE CONTRACTOR SHALL ENSURE THE TOP INVERT OF THE OVERFLOW WEiR IS CONSTRUCTED LEVEL AT THE DESIGN ELEVATION. 8. THE CONTRACTOR SHALL CONSTRUCTTHE EMBANKMENTAND ANY INTERNAL BERMS IN 8 -TO 12 -INCH LIFTS, COMPACTION SHALL BE COMPLETED iN LIFTS WITH APPROPRIATE EQUIPMENT. THE CONTRACTOR SHALL ALSO ADHERE TO THE CLAY LINER SPECIFICATIONS OUTLINED IN TABLE 14.4 BELOW: Table 14.1. Clay Liner Specific atflerrs _, T'errrteabitity. ASTM D-2434 �,. ` I X 10 PiasticAy Index of Clay lj��' i f f'f tJ ,WC{:�' t bran § fI1". % Not less than 15 � .l6 \ ASTM D-2216 % sX ,I 9 k Olay Particles Passing ASTM D-422 I i a r �,; Not less than 30 Clay Compaction 1 6\ 1 . 95% of slanoafd prWor densfty VW Lt{f j k'�a4i Annually * Open up the riser to access and fest the uali>fes • Repak broken mechanical component's, I needed • I s o.rrt. e L T'€IC O tine duri the L ,,,second year ftabvirstruction g A` l -OPE p at.r Coptslball.txt;i FaT,w �•t,. Every 5 to 7 years • �* 1. 0 W Qf2 0 t x ;, f ' I _. 3.'..�."'l.�. H l'- Lroaa i t q. T pki t i L' f :F t 1000-1- I,--!-'1,'8_ ,q o 16 C 114 1 -(,t.R _. ry _jw 0 w "' i Sll x , are J ;. moi! �. f '4., O In z C L . t,i ljti arcs �ITIL F f En. acct ►U 2: �t W - }111. V 4 y .� .y- N.j. ( ,.+..'i7TiYY"'nY �-:��il�w r.- .. 1�,s1'.,_;.- El :'��. r Y*�1�•i'f� C) U) + t a z z 0 W I HDPE t,:,,,ar 1 , frs rl>, d,n ,s}; 2 C {{ .I-1 t', 1'i i,�(3 r:37i, 1;,.: c ..j_l'. rj� CL z 0 CL : I Aa`.�` ti , , LU U) 2~ a LLI O LU 0 s le IN 0 tri I V)U + 2 t 0 P ) tr fu. 0 'u o I.,- ci 1 1_ skiPr ' P t.A s u.'ti -c ,,.,,.f � -,t Yr:.rT,71 R-1 F. -,,aT F O, �, ),P1 '�I L y1 i iyi °'t '�, l4llt.-il :,f Si) .."f:�l,I F..,+':sr�..; tr� '* :CT -i �� INC. Pt:t_1r, _61M17 k9, !lis ,. ?•��:'-,.,,�,Msn Ver DEQ STORMWATER DESIGN SPECIF ATION 14�; ,,SECTION,4. TTIUAL.DE i UL S dipp6R 5HRf IF ,wETL,k"r'a fLO/RL Z v a ETl t iG ,,J L to--t-ow pl;r v, iz Rw?,X r 19,, EFII"L was f �rf'R1; TV nEf Tt 1 ?- 1 a` aFiE13dV i1'IEPEq 7�r?, 6,iJs 14.2`F Iro MOL ONZ 1FiEFEP�"TC°TABiE' ALQIj1P-SA9NT`�I11 11 1 A 2 Fr R:VC_` t1C>r1r ,_1 :»-w-----,..�•. � � '�, �' I "-1 �H. it' f aiEJvtEf irB? -� `:�` - i i} �, r"' � "'-.`�-`:.- 'x . I "it 4f ,rub ]� aF r it 4 -1 Ii I YW. 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P1RQF1La 1"1VITOk VPPE i°IdLif i� ETLAiLl�l'r AQUTA.TC 1,11K.1 H 4 I I I I I _� � \ �� r 1 �1-7,7_! i -";7�1' °7� ,'sj`--»�'�rI...f-1 �;-.[I 1t -t .� _.s..-.__..__.._._. x �'t .»�.r {� 'o ,1d' t 11 fly".^.`l i.�' �2 Y i.Lr 7! - : f ._.,._ ,�,� ` HIGH ,��0N "R"{'y', 1 eF_ 11i7NO N0, ,, L i �� {I _rI .i t, I I�.._ I r ;` ! t i Ir I I .., I ) _ � ' T s i Tz e'u✓L� a {i.x'� i I,. i I. -:,t, s ;� _ t�� - L t r „. ii F iI.r L11 t i [l ir) I l)r Il �) FII F, ls>3 y l P i:f FL h� 6 6:1""'!., I'' v i ins t 1 Tit^ I 11 r€t i.. r•^f k ,1!' it Ira t 7 2 gE'r`E� T � :SEC' rt r G F0'1 ' I AIE L2ItA ' ir'oi!A _ POOL _ Vi' LLIME , AND F_E;2'n,,f1,tkND'Pi' ,AKOI i C14A.T4r�[L: g1 ECrtDN'aTf nt ,3Ei'.o .a Fig llrre 14 't. Wet' Pond L Siglil cftematfcs LIVET POND CONSTRUCTION NOTES: FACILITY PLANTING SPECIFICATIONS: 1. THE CONTRACT0R: SHALL CSIABU SH AN D MAi NTAI N A VEGETATIVE COVERAG E i N TH E PO N D AN D ITS BU FF ER. 2. THE CONTRACTOR SHALL ALSO INSTALL THE WETLAND SHELF AND AQUATIC BENCH PLANTINGS, AS REQUIRED, AND USE NUTRIENT RICH SOIL IN THESE AREAS TO PROMOTE HEALTHY GROWTH AND ROOT DEVELOPMENT. 3 PLANT SELECTION! SHALL PROMOTE DIVERSE WiLDL IFE AND WATERFOWL USE WITHIN THE STORMWATER WETLAND, AQUATIC BENCH AND BUFFERS, 4. WOODY VEGETATION MAY NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEET OF THE TOE OF THE EMBANKMENT NOR WITHIN 25 FEET FROM THE PRINCIPAL SPILLWAY STRUCTURE. 5, A VEGETATED BUFFER SHALL BE PROVIDED THAT EXTENDS AT LEAST 25 FEET OUTWARD FROM THE MAXIMUM WATER SURFACE ELEVATION OF THE WET POND, PERMANENT STRUCTURES (E.G., BUILDINGS) SHALL NOT BE CONSTRUCTED WiTHiN THE BUFFER AREA. EXISTING TREES SHALL BE PRESERVED IN THE BUFFER AREA DURING CONSTRUCTION IF POSSIBLE. 6. 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 P;lFNTCROOT PENETRATION ANDTHEEFOREMAY LEAD TO PRF A T RFMORTA T.Y CR i SS CF VIGOR. F . PLANTING SHALL .__ BE THREE TIMES DEEPER AND WIDER THAN THE DIAMETER OF THE ROOT BALL FOR BALL -AND -BURLAP STOCK, AND FIVE TIMES DEEPER AND WIDER FOR CONT AINER-GROW1-3-1 OCK. 7. 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. v'i�iTRAC OR REQUIREMENT I S 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 NURSERY STOCK, 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. 5. 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 CONSTRUCTION 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 BEEN 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 DESIGNER. 13.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. 18. THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR PLANT MATERIAL THAT HAS BEEN DAMAGED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR'S CONTROL. FACILITY CONSTRUCTION: 1. THE CONTRACTOR SHALL USE THE WET POND AS AN E&S CONTROL STRUCTURE, IF SHOWN IN THIS MANNER ON THE APPROVED ESC PLANS. IF APPLICABLE, THE WET POND SHALL SERVE AS A SEDIMENT BASIN DURING PROJECT CONSTRUCTION. IF THIS IS DONE, THE VOLUME SHALL BE BASED ON THE MORE STRINGENT SIIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENT VS. WATER QUALITY TREATMENT REQUIREMENT). 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 WET POND IN MIND. THE BOTTOM ELEVATION OF THE WET POND SHALL BE LOWER THAN THE BOTTOM ELEVATION OF THE TEMPORARY SEDIMEN T BASIN. APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT DISCHARGE OF TURBID WATERS WHEN THE BASIN IS BEING CONVERTED INTO A WET POND, 2. WET PONDS SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THEPOND 15 COMPLETELY STABILIZED. IF THE PROPOSED POND SITE WILL BE USED AS A SEDIMENT TRAP OR BASIN DURING THE CONSTRUCTION PHASE, THE CONTRACTOR SHALL DE -WATER, DREDGE AND RE -GRADE THE SEDIMENT CONTROL FACILITY TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE. 3. THE CONTRACTOR SHALL ASSEMBLE CONSTRUCTION MATERIALS ON-SITE, MAKING SURE THEY MEET DESIGN SPECIFICATIONS AND ARE PREPARED AT STAGING AREAS WHEN POSSIBLE. 4. THE CONTRACTOR SHALL CLEAR AND STRIP THE PROJECT AREA IF REQUIRED TO THE DESIRED SUB GRADE. 5. THE CONTRACTOR SHALL INSTALL E&S CONTROLS PRIOR TO CONSTRUCTION, INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION PRACTICES. ALL AREAS SURROUNDING THE POND THAT ARE GRADED OR DENUDED DURING CONSTRUCTION MUST BE PLANTED WITH TURF GRASS, NATIVE PLANTINGS, OR OTHER APPROVED METHODS OF SOIL STABILIZATION. 6. THE CONTRACTOR SHALL ALSO EXCAVATE THE CORE TRENCH AND INSTALL THE SPILLWAY PIPE. T THE RISER AND APPLICABLE OUTFLOW STRUCTURES SHALL BE INSTALLED, AND THE CONTRACTOR SHALL ENSURE THE TOP INVERT OF THE OVERFLOW WEiR IS CONSTRUCTED LEVEL AT THE DESIGN ELEVATION. 8. THE CONTRACTOR SHALL CONSTRUCTTHE EMBANKMENTAND ANY INTERNAL BERMS IN 8 -TO 12 -INCH LIFTS, COMPACTION SHALL BE COMPLETED iN LIFTS WITH APPROPRIATE EQUIPMENT. THE CONTRACTOR SHALL ALSO ADHERE TO THE CLAY LINER SPECIFICATIONS OUTLINED IN TABLE 14.4 BELOW: Table 14.1. Clay Liner Specific atflerrs SDurce_ Virgins Stormwater Management Hare (19991 9. EXCAVATION AND GRAD NG TO THE I APPROPRIATE ELEVATIONS AND DESIRED CONTOURS SHALL BE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE POND. 10.THE EMERGENCY SPILLWAY SHALL BE CONSTRUCTED IN CUT WHERE POSSIBLE, OR IN STRUCTURALLY STABILIZED SOILS. 11.THE OUTLET PiPES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION, SHALL BE INSTALLED. 12.EXPOSED SOILS SHALL BE STABILIZED WITH TEMPORARY SEED MIXTURES APPROPRIATE FOR THE POND BUFFER. ALL AREAS ABOVE THE NORMAL POOL ELEVATION SHALL BE PERMANENTLY STABILIZED BY HYDROSEEDiNG OR SEEDING OVER STRAW. 13.THE POND BUFFER AREA SHALL BE PLANTED WITH A VEGETATIVE GROUND COVER AND THE CONTRACTOR SHALL THEN INSTALL THE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS. 14. ALL CONSTRUCTION SHALL ADHERE TO THE VIRGINIA DEQ POST CONSTRUCTION BMP CLEARINGHOUSE REQUIREMENTS SET FORTH IN DESIGN SPECIFICATION NUMBER 14. FACILITY MAINTENANCE: MAINTENANCE OF THE WET POND(S) IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE POND. DURING THESE INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER: - 1. MEASURE SEDIMENTCCU ULATiO A M N LEVELS 1N THE FOREBAY, 1. MONITOR THE GROWTH OF WETLANDS, TREES AND SHRUBS PLANTED, AS APPLICABLE. RECORD THE SPECIES AND THEIR APPROXIMATE COVERAGE, AND NOTE THE PRESENCE OF ANY INVASIVE PLANT SPECIES, AS APPLICABLE. 2. INSPECT THE CONDITION OF STORidiWATER INLETS TO THE POND FOR MATERIAL DAMAGE, EROSION OR UNDERCUTTING. 3. 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. 4. INSPECT POND OUTFALL CHANNEL FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, ETC. 5. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES. 6. INSPECT CONDITION OF ALL TRASH RACKS OR FLASHBOARD RISERS FOR EVIDENCE OF CLOGGING, LEAKAGE, DEBRIS ACCUMULATION OR OTHER FAILURES. 7. 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, 8. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE POND FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING, AND MAKE NEEDED REPAIRS IMMEDIATELY. 9. REPAIR AND REPLACE AS NECESSARY. 10. PLEASE SEE THE TABLE BELOW FOR ADDITIONAL MAINTENANCE MEASURES ABOVE AND BEYOND THOSE OUTLINED ABOVE: Table 14.6. Typical Wei Pond Maihimian e Tasks and Freilvercyr • 22L- T'errrteabitity. ASTM D-2434 Cm/sec I X 10 PiasticAy Index of Clay ASTIV D-4231424 % Not less than 15 Liquid Limit of Clay ASTM D-2216 % Not less than 30 Olay Particles Passing ASTM D-422 % Not less than 30 Clay Compaction ASTM, D-22'16 ce 95% of slanoafd prWor densfty SDurce_ Virgins Stormwater Management Hare (19991 9. EXCAVATION AND GRAD NG TO THE I APPROPRIATE ELEVATIONS AND DESIRED CONTOURS SHALL BE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE POND. 10.THE EMERGENCY SPILLWAY SHALL BE CONSTRUCTED IN CUT WHERE POSSIBLE, OR IN STRUCTURALLY STABILIZED SOILS. 11.THE OUTLET PiPES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION, SHALL BE INSTALLED. 12.EXPOSED SOILS SHALL BE STABILIZED WITH TEMPORARY SEED MIXTURES APPROPRIATE FOR THE POND BUFFER. ALL AREAS ABOVE THE NORMAL POOL ELEVATION SHALL BE PERMANENTLY STABILIZED BY HYDROSEEDiNG OR SEEDING OVER STRAW. 13.THE POND BUFFER AREA SHALL BE PLANTED WITH A VEGETATIVE GROUND COVER AND THE CONTRACTOR SHALL THEN INSTALL THE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS. 14. ALL CONSTRUCTION SHALL ADHERE TO THE VIRGINIA DEQ POST CONSTRUCTION BMP CLEARINGHOUSE REQUIREMENTS SET FORTH IN DESIGN SPECIFICATION NUMBER 14. FACILITY MAINTENANCE: MAINTENANCE OF THE WET POND(S) IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE POND. DURING THESE INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER: - 1. MEASURE SEDIMENTCCU ULATiO A M N LEVELS 1N THE FOREBAY, 1. MONITOR THE GROWTH OF WETLANDS, TREES AND SHRUBS PLANTED, AS APPLICABLE. RECORD THE SPECIES AND THEIR APPROXIMATE COVERAGE, AND NOTE THE PRESENCE OF ANY INVASIVE PLANT SPECIES, AS APPLICABLE. 2. INSPECT THE CONDITION OF STORidiWATER INLETS TO THE POND FOR MATERIAL DAMAGE, EROSION OR UNDERCUTTING. 3. 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. 4. INSPECT POND OUTFALL CHANNEL FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, ETC. 5. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES. 6. INSPECT CONDITION OF ALL TRASH RACKS OR FLASHBOARD RISERS FOR EVIDENCE OF CLOGGING, LEAKAGE, DEBRIS ACCUMULATION OR OTHER FAILURES. 7. 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, 8. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE POND FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING, AND MAKE NEEDED REPAIRS IMMEDIATELY. 9. REPAIR AND REPLACE AS NECESSARY. 10. PLEASE SEE THE TABLE BELOW FOR ADDITIONAL MAINTENANCE MEASURES ABOVE AND BEYOND THOSE OUTLINED ABOVE: Table 14.6. Typical Wei Pond Maihimian e Tasks and Freilvercyr • mowing -'twe a year al Remove detaris and blockages Ouarteriy or after €rUajar- sbrms (� 1 inch of rainfall), _ TRapair untlercut, aroded, aW bare soil areas • rowing Twice a year e Sfwrelirte cleanup to remove tach, debris afd f>oatables ce + A felt maintenanm inspection Annually * Open up the riser to access and fest the uali>fes • Repak broken mechanical component's, I needed • Pond buffer and aquatic ch reinforcement plantings O tine duri the L ,,,second year ftabvirstruction g Forebay Sediment Removal Every 5 to 7 years • Repair pipes, the riser aftd spithyay, as nee e.d From :5 to 25 years FACILITY INSPECTION: MULTIPLE INSPECTIONS ARE CRITICAL TO 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 EXTENDED DETENTION BASIN'S CONSTRUCTION PROCESS: 1. PRE -CONSTRUCTION MEETING 2. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) 3. EXCAVATION/GRADING (E.G., INTERIM/FINAL ELEVATIONS) 4. WET POND INSTALLATION (E.G., INTERIM AND FINAL ELEVATIONS) 5, INSTALLATION OF THE EMBANKMENT; THE RISER/PRIMARY SPILLWAY, AND THE OUTLET STRUCTURE(S). 6. PLANTING AND VEGETATIVE STABILIZATION PHASE (WITH AN EXPERIENCED LANDSCAPE ARCHITECT PRESENT) 7. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) EMBANKMENT NOTES: AFTER AN INVESTIGATION OF THE SiTE's SOiLS, SITE ViSITS, AN ANALYSIS OF THE SURVEYED TOPOGRAPHY AND AN EXAMINATION OF VA DEQ APPENDIX A: EARTHEN EMBANKMENT (REQUIREMENTS vs. RECOMMENDATIONS), THE APPLICANT HAS PROVIDED A COMPREHENSIVE EMBANKMENT DESIGN THAT DOES NOT NEED A GEOTECHNICAL STUDY ATTHIS TIME. SUCH IS 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 ONS SHEET. BERMS TNI HEET RM 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 R N5 TY ASTM D698 AND HAVE A MINIMUM OF 95% OF MAXIMUM DRY DENSITY AND 2% OF OPTIMUM MOISTU RE CONTENT. ALL FILL MATERIAL AND CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS. - z 0 F W 0 z 0 V) w z 0r M Uj D W ce kDU 4 GO L ;�-0 w a t^ Wq a V-4 �, 4 in d U 0 W Qf2 0 0 ,q o z _ P _jw 0 w z O O In z C L ►U 2: 2:0 W C) U) < E_ z >~ z z 0 W r z 2 C Q� rj� CL z 0 CL LU U) 2~ a LLI O LU c V)U tau 'u o L" co tD 10 10 10 W \ Q f V z2 ;6.`i 6 i O ; ice.. � � I- 1-4 :V r'V M M M L9 0') h- N 14ItZ d' I w C\I 15 0 CL CV N CL < 2: > _j W W j > 11�111111111 _j 0 (I) I z W W F- 5" M U aC (D a z Cr < < 6 <t z ill = LL <C �m r 1 U �= C r I � ° i � ■ y ., ...J Wa z o W W'�- -- W ,� f -- Ul ::) 2: Q U VL (D cy-i 2 r )�y�1�;j U �Im! Cf � C W � � C � Wo_ WEL s m , I- jj� � �2� nw I- J 11 �o I- P.-Ici> W 0 - 3: wy C w r<� '..J 0 00 O = n ti 0 0 O w � _! -' l^ it, (� w °' 0U+„j JOB NO. 6 c, /� © `' 142098 a SCALE ' ' AS SHOWN ;V . SHEET N0, ` 'v a; fi ° N F� � c - LEGEND GENERAL NOTES EROSION CONTROL NOTES DESCRIPTION OF EROSION & SEDIMENT ,EROSION CONTROL NOTES & NARRATIVE AOS 1. THE OWNER/CLIENT OF THIS PROPERTY IS., ES -1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION CONTROL MEASURES.- : ES. AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND WNTERGRE v FARkIlS LLC MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS O EXISTING CULVERT CIO RIVERBEND DEVELOPMENT INC THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA EROSION AND SEDIMENT CONTROL MEASURES CULVERT 455 SECOND ST SE, SUJTE 201 REGULATIONS VR 625-02-00 EROSION AN SEDIMENT CONTROL IT IS ANTICIPATED THAT A CONSTRUCTION ENTRANCE, CONSTRUCTION ROAD CHARLOTTESVILLE VA, 22902 REGULATIONS STABILIZATION, TEMPORARY DIVERSION DIKES, RIGHT OF WAY DIVERSION, Q DROP INLET & STRUCTURE NO. 2. THE DEVELOPER OF THIS PROPERTY IS: ES -2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO SEDIMENT TRAPS AND BASINS, OUTLET PROTECTION, INLET PROTECTION, CULVERT RIVERBEND DEVELOPMENT COMPANY THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE INLET PROTECTION, AND SIL T FENCE WILL BE INSTALLED TO CONTROL SURFACE CURB 321 E MAIN ST, SUITE .201 COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO CHARLOTTESVILLE VA, 2'2902 THE FINAL INSPEC77ON, DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIA TEL Y FOLLOWING ALL CURB & u I rtn ATTN. ALAN TAYLOR ES -3. ALL EROSION AND SEDIMEN' I CONTROL MEASURES ARE TO BE PLACID PRIOR LAND DISTURBANCE ACTIVITIES TEMPORARY STOCKPILE AREAS WILL BE PROPOSED PAVEMENT J. THESE PLANS HAVE BEEN PREPARED BY' TO OR AS THE FIRST STEP IN CLEARING. MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM AREAS TO BE GRADED COLLINS ENGINEERING, INC ES -4:A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE ON SITE __.,�__ . 7f, •-, TA TWIT.^v 200 GARRETT STREET, SU17E K RF MAINTAINFI? ON THF SITF AT ALL TIMES "•--ry• t'.:^,. -•-` L.• vr, mor Pat tn;"it TT'a-e'.F s+: ?'^ 1Px ✓krill d5 /1 _ AA�:.R t,3t _ '^T.�ratd di'LP?^. ;d}t rig 7-.^6&^A?^!3?f E,T.e"'E^TA T;3F^ �.^.4 fL�-!;? rfi9,Y .:4 ti '.^R!7 .. .... ... $ ,,-v_ -^ -^ :,Z; ;^ :�. s: ^.>-:: _ A-••� ^, .. ...- ... - --_.., ?WVLi--3i,1iLL �.r� .3 i1110iL7.C.i_U f3'iiia s''i 3#..-ti`Iii.ft-: f-ilL t Y`Y_. u9L_ff57i fx'- Lr ,.�''v`L.f i. /7 ieY3:ii f'S...F `%i t". ,_ C - .`I"'lTr�!T. !t! ssdl.�Y�`TYF�fY�;l C� ' oiNU 1. �ISlt.%f°[•ErWC, ACtrlsjllES !?i" A? EAS i.�%f"lER THAr'�l' Ll I14,1l Ui ir_ Yi!--�, ✓/-•i ZZ9 I DEPTH OF EC -3A DITCH TELEPHONE (434) 293--3719 INDICATED ON THESE PLANS (INCLUDING BUT NOT ,LIMITED TO, OFF-SITE SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE 6"' 4. SOURCE OF TOPO & SURVEY- TOPOGRAPHY COMPILED FROM A COMBINATION OF BORROW OR WASTE AREAS THE CONTRACTOR SH EXCAVATED AND WHERE CONSTRUCTION AC77VITIES HAVE CEASED, PERMANENT - D EC -2 DITCH SURVEYS BY ROUDABUSH, GALE AND ASSOCIATES AND LOUISA AERIAL SURVEYS INC. SUPPLEMENTARY EROSION CSHALL SUBMIT A CON7ROL PLAN TO THE OWNER FOR REVIEW AN SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE JANUARY 2014, BELL SURVEYS AERIAL TOPO IN 2014, AND ALBEMARLE COUNTY APPROVAL BY THE PLAN APPROVING AUTHORITY. LEFT DORMANT FOR A YEAR OR MORE, SELECTION OF SEED MIXTURE WILL RECORDED SUBDIVISION PLATS. BOUNDARY INFORMATION /S COMPILED FROM ES -6: 7HE CONTRACTOR IS RESPONSIBLE FOR INSTALLA77ON OF ANY ADDITIONAL 6" DEPTH OF EC -2 DITCH BOUNDARY DATA PROVIDED BY ROUDABUSH, GALE, AND ASSOCIATES ON JUNE 26, DEPEND ON THE TIME OF YEAR APPLIED. TEMPORARY SEEDING WILL BE 2014 AND ALBEMARLE COUNTY RECORDED SUBDIVISION PLATS EROSION CONTROL MEASURES NECESSARY TO APPIRPREVEV7 EROSION AND PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE EARTH DITCH SED/MENTATION AS DETERMINED BY THE PLAN APPfROVING AUTHORITY. ...--..• 5. ZONING: R-1 RESIDENTIAL ES-7.DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST GERA41NA77NG 6. TAX MAP AND PARCEL NUMBER: 07600-00-00-04980, 07600-00-00-049CO3 MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIV177ES AND DURING VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS, SELECTION OF DRIVEWAY CULVERT 07600-00-00-051CO SITE DEVELOPMENT UN77L FINAL STABILIZA77ON IS ACHIEVED. SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. BENCH MARK Z USGS DATUM. NA VD 29 ES -8: DURING DEWATERING OPERATIONS, WATER WILL BE )PUMPED INTO AN + & LOCATION/ADDRESS OF PROJECT.' SUNSET AVENUE EXTENDED & APPROVED WATER FILTERING DEVICE. 3.01 SAFETY FENCE - BE AMBROSE COMMONS DRIVE ES -9:77-1E CONTRACTOR SHALL INSPECT ALL EROSION COW 7ROL MEASURES AF SAFETY FENCE WILL INSTALLED AROUND ALL - - - CLEARING LIMITS 9. TOTAL ACREAGE OF SITE: 77.13 ACRES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. PROPOSED SEDIMENT BASINS AND SEDIMENT TRAPS. 10. TOTAL ACREAGE OF DISTURBANCE: 47.40 ACRES ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS 3.02 CONSTRUCTION ENTRANCE - ONE COIVSTRUC77ON ENTRANCE SHALL BE VDOT STANDARD STOP SIGN 11. PUBLIC UTILITIES' CONNECT TO EXIS77NG PUBLIC SEWER AND WATER OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. INSTALLED AT THE ENTRANCE TO THE SITE OFF CARROLL CREEK DRIVE. THIS - - - -200- - - - EXIS77NG CONTOUR * COLLINS ENGINEERING SHALL NOT HAVE AUTHORITY OVER CONTRACTOR'S WORK, EROSION CONTROL NOTES WILL BE 7HE ONLY POINT OF INGRESS AND EGRESS TO THE SITE. CARE WILL BE SAFETY PRECAUTIONS, SCHEDULES, OR COMPLIANCE WITH LAWS AND REGULATIONS. TAKEN TO PROTECT ADJACENT ROADWAYS FROM TRANSFER OF SEDIMENT ---- 200 PROPOSED CONTOUR WE SHALL NOT ASSUME RESPONSIBILITY FOR ANY C0NS77?UC77ON STARTED PRIOR TO 1. THE PLAN APPROVING AUTHORITY MUST BE N077FIED ONE WEEK PRIOR TO THE 3.03 CONSTRUC77ON ROAD STABILIZATION - CRS WILL BE INSTALLED ALONG THE PLAN APPROVAL. PRE-CONS7RUC77ON CONFERENCE, ONE WEEK PRIOR TO 7HE COMMENCEMENT OF LAND CONSTRUC77ON STAGING AREA. 2¢0.55 1 PROPOSED SPOT ELEVA77ON DJSTURBlNG ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL JNSPEC770N. 3.05 SILT FENCE- SILT FENCE WILL BE PLACED ON THE DOWNSTREAM SIDE OF ,,-��^ TBC DENOTES TOPIBACK OF CURB EROSION & SEDIMENT CONTROL 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CON57RUC7ED AND MAINTAINED TAB DENOTES TOP OF BOX ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND DISTURBANCE WHERE NOTED ON 77-1E PLANS MEASURES, SEDIMENT CON7ROL HANDBOOK AND VIRGINIA REGULA77ONS VR 625-02-00 EROSION AND 3.07 STORM DRAIN INLET PROTECTION- IP WILL BE INSTALLED ON EACH - �M AT �� �� ��� �r SEDIMENT CONTROL REGULATIONS OPrILIOC IAu P'T c SHOWN n, ruEE PLANS * VIRGINIA EROSION & SEDIMENT CONTROL STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SMALL B IN ACCORDANCE J. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO &E PLACED PRIOR TO OR AS a "v' "" .,"'� EROSION CONTROL HANDBOOK SPECIFICATION NUMBER WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL THEI ST STEP IN CLEARING. 3.08 CULVERT INLET PROTEC77ON - CIP SHALL BE APPLIED TO THE INLET OF * PRA077CES USED IN THIS SEC77ON CONSIST OF THE FOLLOWING: G 4 A OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE THE PROPOSED CULVERTS ALONG CARROLL CREEK DRIVE AS NECESSARY MAINTAINED ON THE SI TF AT ALL TIMES STB I -i- -► STRAW BAIL BARRIER 3.04 ,3,01 SAFETY FENCE: 5. PRIOR TO COMMENCING LAND DISTURBING AC77W77ES IN AREAS OTHER THAN INDICATED DOWNSTREAM OF THE PROPERTY A PR07ECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. ON THESE PLANS (INCLUDING, BUT NOT LIM17ED TO, OFF S(7F BORROW OR WASTE 3.09 TEMPORARY DIVERSION DIKE- DIVERSION DIKES WILL BE USED AROUND THE S - TEMPORARY DIVERSION DIKE 3.09 TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO PER/METER OF S/7F DISTURBANCE WHERE SHOWN ON THE PLANS TO DIRECT APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED THE OWNER FOR REVIEW AND APPROVAL BY 7HE PLAN APPROVING AUTHORITY. RUNOFF TO ON-SITE SEDIMENT CONTROL FACILITIES UNSAFE BY WR77JE OF POTEN77AL ACCESS BY THE PUBLIC. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADD177ONAL EROSION ST mom oo TEMPORARY SEDIMENT TRAP 3.13 CON7ROL MEASURES NECESSARY TO PREVENT EROSION AND' SEDIMENTA77ON AS 3.13 TEMPORARY SEDIMENT TRAP- TEMPORARY SEDIMENT TRAPS WILL BE 3.02 CONSTRUCTION ENTRANCE: DETERMINED BY THE PLAN APPROVING AUTHORITY. INSTALLED WHERE SHOWN ON 77 -IE PLANS. AC LOCATED AT POINTS OF Z ALL DIS77JRBED AREAS ARE TO DRAIN TOAPPROVED S A STABILIZED PAVED CONSTRUCT70N ENTRANCE Wl1H A WASH RACK LO PSEDIMENT CONTROL MEASURES AT SB SEDIMENT BASIN 3.14 VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION S/7E, TO REDUCE THE AMOUNT OF ALL TIMES DURING LAND DISTURBING AC71077ES AND DURING' SITE DEVELOPMENT UNTIL 3.14 TEMPORARY SEDIMENT BASIN- TEMPORARY SEDIMENT BASINS WILL BE MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. FINAL STABILIZA77ON IS ACHIEVED. INSTALLED WHERE SHOWN ON THE PLANS. 3�---- INLET PR07EC77ON 3.07 CONS7RUC77ON ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE 8. DURING DEWA7FRING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING 3.18 OUTLET PROTECTION- TO BE PROVIDED AT THE OUTFALL OF DRAINAGE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS. DEVICE. PIPES WHERE SHOWN ON PLANS. SF SILT FENCE 3.05 9. THE CON7RACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND 303 CONSTRUC77ON ROAD STABILIZATION: AFTER EACH RUNOFF PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR J. RIPRAP- RIPRAP SHALL BE INSTALLED AS OUTLET PROTECTION WHERE 0 THE TEMPORARY STABILIZATION OF ACCESS ROADS, SUBDIVISION ROADS, PARKING AREAS, AND CLEANUP TO MAINTAIN THE EFFEC77VENESS OF THE EROSION CONTROL DEVICES SHALL BE SHOWN ON THE PLANS. � CONSTRUC77ON ENTRANCE 3,02 OTHER S17E VEHICLE TRANSPORTA77ON ROUTES WITH STONE IMMEDIATELY AFTER GRADING. TO MADE IMMEDIATELY. 331 TEMPORARY SEEDING- TEMPORARY SEEDING SHALL BE APPLIED WHERE CE off._ r,TSIREDUCE EROSION OF 7EMPORARY ROADBEDS BY C0NS7RUC77ON 7RAFFIC DURING WET WEATHER 10. ALL FILL MA7FRIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. SHOWN ON THE PLANS. AND TO REDUCE EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WAS7F AREA. EARTH FILL 7HE TIME OF IN177AL GRADING AND FINAL STABILIZATION, USE WHEREVER STONE -BASE ROADS SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER 3.32 PERMANENT SEEDING- PERMANENTLY SEEDING SHALL BE APPLIED WHERE CHECK DAM 3.20 OR PARKING AREAS ARE CONSTRUCTED, WHETHER PERMANENT OR TEMPORARY FOR USE BY DEBRIS SHOWN ON THE PLANS. 8 , CONSTRUCTION TRAFFIC 72, BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN DAYS OF COMPLETION PER ZONING ORDINANCE SECT70N 5.1.28. 3.35 MULCHING -MULCHING SHALL BE APPLIED TO ANY SEEDED AREA AS a TEMPORARY FILL DIVERSION 3.10 305 SILT FENCE. 13. ALL INERT MATERIALS SHALL BE TRANSPOR7FD IN COMPLIANCE WI7H SEC77ON 13-301 OF DEEMED NECESSARY FOR STABILIZATION AND GROWTH. THE CODE OF ALBEMARLE. i A TEMPORARY SEDIMENT BARRIER CONSlS77NG OF A SYN7NE77 C FILTER FABRIC STRETCHED 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING iNDUS7RlAL-TYPE POWER EQUIPMENT SHALL 3.36 SOIL STABILIZA770N BLANKETS AND MATTING BfM SHALL BE EMPLOYED ACROSS AND ATTACHED TO SUPPOR77NG POS75 AND ENTRENCHED, TO INTERCEPT AND DETAIN BE LIMITED TO THE HOURS OF 7.•OOAM TO 9: DOPM. WHEREVER SHOWN ON THE PLANS OR WHERE SLOPES EXCEED J. 1 SLOPE. S1 CONSTRUC77ON OPERA 17074 N DV DIVERSION 312 SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING 15. BORROW FILL OR WASTE AC77WTY SHALL BE CONDUCTED IN A SAFE - ���- ORDER TO PREVENT SEDIMENT FROM LEAVING THE S/7E•, AND TO DECREASE THE VELOCITY OF • L MANNER THAN 338 TREE PRESERVATION AND PROTECTION TREE PRESERVATION FENCING MAINTAINS LA7ERAL SUPPORT OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS PROJECT DESCRIPTION: THE. PURPOSE OF THIS LAND -DISTURBING ACTIVITY IS TO DEVELOP THE PROPERTY FOR AN 85 LOT SINGLE FAMILY DEVELOPMENT INCLUDED IN THE LAND DISTURBANCEACTIVITYARE THE ROADS, UTILITIES, AND STORMWATER MANAGEMENT INFRASTRUCTURE FOR THE DEVELOPMENT. THIS PLAN SHALL BE UTILIZED FOR THE DEVELOPMENT OF THE 85 LOTS. THE PROPERTY IS A TOTAL OF 77,13 ACRES AND THE TOTAL LAND DISTURBANCE FOR THE PROJECT IS 47 4 ACRES: EXISTING SITE CONDITIONS: THE SITE IS CURRENTLY WOODED WITH GRASS FIELDS. EXISTING STRUCTURES AND DRIVEWAYS EXIST ON SITE THAT WILL BE REMOVED WITH THIS EROSION & SEDIMENT CONTROL PLAN. THE TWO ACCESSES TO THE PROPERTYARE FROM SUNSET AVENUE EXTENDED AND AMBROSE COMMONS DRIVE. AN EXISTING STREAM BISECTS THE SITE, AND THERE ISA .100 YR FLOODPLAIN AND STREAM BUFFER ON THE PROPERTY FROM EXISTING STREAMS THE SITE IS BORDERED TO THE SOUTH BY THE MDSBY MOUNTAIN SUBDIVISION AND BEREAN BAPTIST CHURCH. THE REDFIEDS SUBDIVISION IS LOCA TED TO THE NORTHAND WEST OF THE PROPERTY. TO THE EAST OF THE SITE /S SUNSETA VENUE EXTENED. ACROSS SUNSET DRIVE EXTENDED EXIST SINGLE FAM/L Y HOMES AND THE FUTURE SUNSET OVERLOOK SUBD/VISION OFFSITE LAND DISTURBANCE: (2) CONNECTIONS TO EXISTING SANITARYSEWER FACILITIES FOR THIS DEVELOPMENT WILL OCCUR OUTSIDE THE LIMITS OF THE PROPERTY. THE SUNSETDR/VE EXTENDED IMPROVEMENTS ASSOCIATED WITH THIS PROJECTAREALSO OUTSIDE THE LIMITS OF THE PROPERTY: EASEMENTS SHALL BE OBTAINED FOR ANY WORK THAT TAKES PLACE OFFSITE. CRITICAL AREAS: CRITICAL AREAS ON THE SITE WILL BE PROTECTED DURING THIS LAND DISTURBING ACTIVITY. EXISTING STREAMS SHALL BE PROTECTED FROM ANY EROSION ENTERING FROM THE DEVELOPMENT OF THE PROPERTY. THE SITE WILL BE PROTECTED WITH DIVERSION DITCHES, S/l T FENCE, AND SED/MENTBASINSAND TRAPS. ADDITIONALLY, THEREAREA NUMBER OFSTEEP SLOPES LEADING DOWN TO THE STREAMS ON THE PROPERTY THAT WILL BE MAINTAINED AND PRESERVED, CARE MUST BE TAKEN WHEN INSTALLING UTILITIES INCLOSE PROXIMITY OF THE SLOPES AND CREEKS TO ENSURE THAT THESEDIMENT DOES NOT REACH THE STREAM FROM THE CONSTRUCTION ACTIVITY. IOUs. SEESOIL SCHEDULE ON THIS SHEET AND THE PHASE I PLAN SHEETS FOR THE LOCATION OF THE SOILS PHASE 1 SEQUENCE OF CONSTRUCTION: 1. NOTIFYALBEMAIRLE COUNTY TO SCHEDULE PRE -CONSTRUCTION MEETING AS REQUIRED. Z NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. 3. CONTRACTOR SHALL INSTALL TREE PROTECTION FENCING BEFOREANYSI T E DISTURBANCE SHALL TAKE PLACc C-Offi RACT OR SHALL USE TREE PROTECTION FENCING TO STAKEOUT THE LIMITS OF CLEARING AND DISTURBANCE ON-SITE. CONTRACTOR SHALL ENSURE THAT TREES TO BESA VED ARE FLAGGEDALONG THE LIMITS OF CLEARING TO ENSURE THE PROPOSED TREE PRESERVAT/ONACREAGE IS MET. . 4. INSTALL THE PHASE I PAVED CONSTRUCTION ENTRANCE ON SUNSET AVENUE EXTENDED WITH WASH RACKAS SHOWN ON THE PLANS. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TR.4NSPORTOFSED/MENTBY(VEH/CULAR) TRACKING ONTO THE PAVED SURFACE. WHERESED/MENTIS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLYAT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BYSHOVELING OR SWEEP/NG AND TRANSPORTING TOA SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BEALLOWED ONLYAFTER SEDIMENT /S REMOVED IN THIS MANNER. ACSA WILL DETERMINE THEAPPROPRIATE METHOD OF SUPPLYING THE WASH RACK. INSTALL THE PARKING AND STAGING AREA W/TH CONSTRUCTION ROAD STABIL/L4 TION. CONSTRUCTION ROAD STABILIZATION SHALL CONSIST OF 4" OF 21A GRAVEL IN THE PARKING AREA, AND 8" OF 21A GRAVEL /N ANY PORTION OF THE CONSTRUCTION ENTRANCE WHICH /S UNPAVED. PARKINGAND CONSTRUCTION ENTRANCEAREASSHALL BE CLEARED OFALL VEGETATION, ROOTS, OR OTHER OBJECTIONABLE MATERIALS BEFORE CONSTRUCTION ROAD STABILIZATION IS INSTALLED. .5. INSTALL THE INITIAL PHASE / PER/METER CONSTRUCTION MEASURESAS SHOWN ON THE PHASE/ EROS/0N CONTROL PLAN SHEETS. THIS INCLUDES 2 SEDIMENTBAS/NS. SIL TFENCEAND DIVERS/ON DIKES SHALL ALSO BE /NSTALLEDA T THIS TIME. STAB/L/ZA T/DN MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES, AND DIVERSIONS JMMED/ATELYAFTER INSTALLATION MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED ASA FIRST STEP WITH ANY LAND DISTURBANCEACTIV/TYAND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. E. INSTALL ANYREMAINING EROSION CONTROL ITEMSAS SHOWN ON THE PHASE I EROSION CONTROL PLAN. Z ONCEALL THE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE PHASE/ EROSION CONTROL PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR BEGIN GRADING OPERATIONS. GRADING OPERATIONS FOR PHASE I INCLUDE FILLING THESOUTH-EAST PORTION OF THE SITE, B. ROUGH GRADE THE SITE TO TH E CONTOURSWN H N THE S D O EROSION CONTROL PLAN. LAN EN SURE THAT THE DIVERSION DIKES 1 SMA NTA/NA POSITIVE SLOPE TO DIVERT ALL RUN-OFF TO THE SEDIMENT BASINS, AS SHOWN ON THE PHASE/ EROSION AND SEDIMENT CONTROL PLAN ONCE THE PHASE/ GRADING OPERATIONS ARE COMPLETE, PHASE H CAN COMMENCE. SHEET FLOWS AND LOW- TO-MODERA 7E, LEVEL CHANNEL L FLOWS. THE SILFEN CE BARRERS , SHALL 8E INSTALLED WHERE SHOWN ON THE PLANS. NO TRE SHALL BE ES HA SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FIL IFR SEDIMENT PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS; AND DAMAGE TO ANY PHASE 11 SEQUENCE OFCONSTRUCTIDN: HARMED OUTSIDE OF THE LIMITS OF TREE PROTEC 0 FENCIN PS PS PERMANENT SEEDING 3 32 D. EY SHALL BE INSPEC7FD IMMEDIA TFL Y PUBLIC STREET BECAUSE 0 SLIDES, SINKING, OR COLLAPSE. PROTEC77ON G. 1. CONTRACTOR SHALL INSTALL TREE PROTECTION FENCING BEFOREANYSJTE DISTURBANCE SHALL TAKE PLACE. CONTRACTOR SHALL USE a LADEN RUNOFF FROM SHEET FLOW AS INDICATE TH 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL MAINTAIN, OR AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE Wl7H THE VIRGINIA EROSION & A1NTAlN, REMOVE CONVERT 3.39 DUST CONTROL- DUST CONTROL SHALL BE APPLIED THROUGHOUT THE SITE TREE PROTECTION FENCING TO STAKE OUTTHELIMITSOFCLEARINGANDDISTURBANCEON--SITE. CONTRACTOR SHALL ENSURE THAT TO PERMANENT STORMW47FR MANAGEMENT FACIL177ES WHERE APPLICABLE ALL EROSION SEDIMENT CONTROL HANDBOOK (VESCH). CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, WHERE SHOWN ON THE PLANS. TREES TO BESAVED ARE FLAGGED ALONG THE LIMITS OF CLEAR/NG TO ENSURE THE PROPOSED TREE PRESERVATION ACREAGE IS MET. TO TO --, TOPSOILING 3.30 UNIT, BUILDING OR OTHER POR77ON OF 774E PROPERTY 2. INSTALL THE PHASE 11 PAVED CONSTRUCTION ENTRANCE ON AMBROSE COMMONS DRIVE WITH WASH RACKAS SHOWN ON THE PLANS. 07 DRAIN INLET PROTECTION: 3. STORM 17. TEMPORARY STABILIZA77ON SHALL BE TEMPORARY SEEDING .AND MULCHING SEEDING IS TO STORMWATER MANAGEMENT CONSTRUCTION ENTRANCE TO BEINSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP BE AT 75 LBSIACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A SHALL BE MADE TO M/NIMIZETHETRANSPORTOFSEDIMENTBY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERESED/MEN'TIS C!P 'i CULVERT INLET PROTECTION J. INLET OR CURB INLET. TO PREVENT SEDIMENT FROM EN7FR/NG STORM DRAINAGE SYSTEMS STORMWATER RUNOFF QUANTITY WILL BE TREATED ON-SITE 17-IROUGH THE USE (VEHICULAR) PRIOR TO PERMANENT STABILIZATION TION E THE DISTURBED AREA. SNORT DRAINAGE ON APPLIES 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL IWNIFR RYE, OR IN MARCH AND APRIL To OF BIOFIL TERS. SEE STORMWA IFR MANAGEMENT PLAN SHEETS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLYAT THE END OF EACH DAY: SEDIMENTSHALL CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. WHERE STORM DRAIN INLETS ARE TO BE MADE OPERA 77ONAL BEFORE PERMANENT BE REMOVED FROM THE ROADS BYSHOVELING OR SWEEPING AND TRANSPORT/NG TO A SEDIMENT CONTROL DISPOSAL AREA. STREET STABILIZA77ON OF THE CORRESPONDING DISTURBED DRAINAGE AREA. STRAW MULCH IS TO BE APPLIED AT CONTROL NS CTOR. rA77VEs ARE SUBJECT TO WASHING SHALL BEALLOWED ONLYAFTER SEDIMENTS REMOVED IN THIS MANNER. ACSA WILL DETERMINE THEAPPROPRIATE METHOD DC DC DUST CONTROL J. 39 APPROVED S THE COUNTY EROSION CONTROL INSPECTOR. OFSUPPLYJNG THE WASH RACK. INSTALL THE PARKINGAND STAGING AREA WITH CONSTRUCTION ROAD STABILIZATION. CONSTRUCTION y3. D8 CUL VERT INLET PR07frVON: 18. PERMANENT STABILIZA77ON SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MAINTENANCE.° ROAD STABILIZATION SHALL CONSIST OF 4" OF 21A GRAVEL IN THE PARKING AREA, AND 8" OF 21A GRAVEL IN ANY PORTION OF THE MULCH. AGR/CUL7URAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS 1000SF, IN GENERAL DURING CONS7RUCTlON THE RLD OR CONTRACTOR ON-SITE WILL CHECK A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS A PREVENT INCORPOR 7ED INTO THE TOP 4-6 INCHES OF SOIL. FERRUZER SHALL BE APPLIED A , CONSTRUCTION ENTRANCE WHICH/S UNPAVED. PARKINGAND CONSTRUCTION EN RA TSD -- TEMPORARY SLOPE DRAIN 3.15 SEDIMENT FROM ENTERING, ACCUMULATING !N AND BEING TRANSFERRED BY A CULVERT AND A T N T NCEAREASSHALL 8E CLEARED OFALL VEGETATION, ALL EROSION AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH CO O A 10-20-10 NUTRIEN Ml P A ROOTS OR OTHER OBJECTIONABLE MATER! DISTURBED 1000LBS/ACRE AND CONSIST FT JK. PERMANENT SEEDING SHALL ALS BEFORE CONSTRUCTION ROAD STABILIZATION /S INSTALLED. OF IS BED O DRAINAGE SYSTEM PRIOR TO PERMANENT STABILIZA77ON ASS C/ATED PROJECT AREA. TO PROVIDE EROS/ON CONTROL AT CULVERT INLETS DURING THE PHASE OFA BE APPLIED AT !BOOBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND SIGNIFICANT RAINFALL, MONITORING REPORTS WILL BE REQUIRED FROM THE RLD IF 3. INSTALL THEIN/TIAL PHASE it PERIMETER CONSTRUCT/ON MEASURESAS SHOWN ON THE PHASE /J EROSION CONTROL PLAN SHEETS. Ti#'JS PROJECT WHERE ELEVATION AND DRAINAGE PATTERNS CHANGE, CAUSING ORIGINAL CON7ROL 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS STRAW MULCH IS TO BE APPLIED NEEDED. SPECIFIC ATTENTION WILL BE GIVEN TO THE FOLLOWING ITEMS INCLUDES 3SEDJMENTBASINSAND 1 SEDIMENT TRAP. SILTFENCEANDDIVERSI DIVERSION SHALL ALSO BE INSTALLED AT THIS SA I� � SAFETY FENCE 3.01 a. SEDIMENT BASINS AND OR TRAPS WILL BE CLEANED AND MAINTAINED /N O TIME. MEASURES TO BE INEFFEC171/E OR /N NEED DR REMOVAL. WHERE CULVERT AND ASSOCIATED AT $OLBSf100SF. AL7ERNA77VES ARE SUBJECT TO APPROVED BY 7HE COUNTY EROSION � STABILIZATION MEASURES SHALL BEAPPLIED TO EARTHEN STRUCTURESSUCHASDAMS, DIKES, AND D/VERSIONSIMMEDIATELYAFTER DRAINAGE SYSTEM /S TO BE MADE OPERA77oNAL PRIOR TO PERMANENT STABILIZA77ON OF THE CONTROL INSPECTOR. ACCORDANCE WITH THE VIRGINIA EROSION &SEDIMENT CONTROL HANDBOOK. INSTALLATION MEASURES INTENDED TO TRAPSED/MENTSHALL BECONSTRUCTEDASA FIRSTSTEP WITHANYLAND DISTURBANCE �--� DISTURBED AREA. 19. MA/N7FNANCE.• ALL MEASURES ARE TO BE INSPECTED WEEICLY AND AFTER EACH b.ALL INLET PROTECTION AND GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR (RWDI , TEMPORARY RIGHT -OF WAY 3.11 RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE -GRAVEL IS ACTIVITYAND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE, E/ DIVERSION J. 09 7EMPORARY DIVERSION DIKE: IMMEDIA TFL Y. SILT 7RAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME CLOGGED BY SEDIMENT,' THE GRAVEL WILL BE REMOVED AND CLEANED, OR IT WILL 4• INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE 1/ EROSION CONTROL PLAN. A 7EMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING IS FILLED WI7H SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY BE REPLACED. 5. ONCEALL THE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE PHASE Il EROSION CONTROL PLAN AND THE TO ACHIEVE A GOOD STAND OF GRASS SILT FENCE AND DIVERSION DYKES WHICH ARE DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET TO DIVERT C. ALL SIL T FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERM/NTNG OR COLLEC77NG SEDIMENT TO HALF 7HEIR HEIGHT MUST BE CLEANED AND REPAIRED DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL INSPECTOR HASAPPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR BEGIN GRADING OPERATIONS GRADING OPERATIONS SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH IMMEDtA7FLY. BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO STORMWATER FLOWS. APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL FOR PHASE RlNCCUDEALL OF PHASE /OF THE ROAD CONSTRUCT/ON PLANS ROUGH GRADE 771ES1TE TO THE CONTOURS SHOWN ON AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER .5TORMWATER RUNOFF MUST BE 20. ALL TEMPORARY EROSION AND SEDIMENT CON7ROL MEASURES ARE TO BE REMOVED THE TOP THE BARRIER. it. tSLOPE j oR I.ESS1 PER THE PHASE Il EROSION CONTROL PLAN. ENSURE THAT THE DIVERSION DIKES MA/NTA/NA POSITIVr". SLOPE TO DIVERT ALL RUN-OFF TO SLP TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, ED d. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A 'DOD STAND 3. INSTALL THE UTILITIES AND ROADS AS SHOWN ON THE PHASE N EROSION & SEDIMENT CONTROL PLAN. THIS INCLUDES PHASE HOF THE THF SEDIME N NT BAST SASS OWN ON THE P H HASE///EROSION AND SEDIMENT CONTROL PLAN. SITE DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. MAINTAINED. !S MA/NTA/HED. AREAS SHOULD BE FERTILIZED AND RESEEDED 'A5 NEEDED. 6• ROUGH GRADE THE SITE TO THE CONTOURS SHOWN ON THE EROSION CONTROL PLAN. ENSURE THAT THE DIVERSION DIKES MA/NTA/NA MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE. 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WIININ I YEAR OF IN CASE EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD THE DA7F OF APPROVAL. (WATER PR07EC77ON ORDINANCE SECTION 17-204'.) POSITIVE SLOPE TO DIVERTALL RUN-OFF TO THE SEDIMENT BAS/NSAND TRAP, AS SHOWNON THEPHASE H EROS/ONANDSEDIMENT J. 13 7EMPORARY SEDIMENT TRAP.,22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENCIDED AREAS Wl7HIN NINE (9) OR CONTRACTOR ON-SITE THE CONTRACTOR WILL BE DETERM/NED AT THE TIME THE A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT THE SOIL FROM THE EROSIVE CONTROL PLAN. A 7EMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A MONTHS AF7ER 7HE DATE 7HE LAND DISTURBING AC77WTY COMMENCED. (WA TER CONTRACT IS AWARDED. IN ADD177ON THE OWNER MAY BE CONTACTED, MR, ALAN 7 INSTALL THE UTILITIES AND ROADS AS SHOWN ON THE PHASE 1i EROSION & SEDIMENT CONTROL PLAN. THIS INCLUDES PHASE I OF THE STONE OUTLET TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG PROTEC77ON ORDINANCE SECTION 17-2078) TAYLOR, UPON COMPLE77ON OF THE PROJECT, THE OWNER WILL BE RESPONSIBLE THE PHASE 111 EROSION CONTROL PLAN. SEDIMENT BASIN #S SHALL REMAIN /N PLACERS THE UPSTREAMAREAS OF THE PHASE 11 ROAD CONSTRUCTION PLANS. INLET PROTECTION SHALL BE INSPECTED AFTER EACH RAINFALL EVENTAND REPAIRS SHALL BE MADEAS ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. USE BELOW DISTURBED AREAS WHERE THE TOTAL CON7R/BUTTNG DRAINAGE AREA IS LESS THAN 3 ACRES, WHERE THE FOR SITE MAINTENANCE. I SOIL DESCRIPTION CULPEPER SANDY LOAM 7 TO 15% SLOPES ( ) NEEDED. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT SO THAT IT NO LONGER ADEQUATELY PERFORMS ITS FUNCTION, THE ! � PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND � 4�_ STONE MUST BE PULLED A WA YAND CLEANED AND/OR REPLACED. INSTALL ANYREMAINING EROSION CONTROL ITEMSAS SHOWN ON SEDIMENT TRAP WILL BE USED NO LONGER THAN 18 MON IHS, AND IT MAY BE CONS 7RUCTED EITHER INDEPENDENTLY OR /N CONJUNC77ON Wl7H A TEMPORARY DIVERSION DIKE. 13D - CA TOC77AI SILT LOAM (15 TO 257. SLOPES) 7HE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA77VE COVER, ETC., THE PHASE H EROSION CONTROL PLAN. CONSISTS MOSTLY OF YELLOWISH RED AND RED CLY LOAM ABOUT 40 THICK, AND SUBSTRATUM TO A DEPTH OF ABOUT SOIL /S MODERATELY DEEP, WELL DRAINED WITH MODERATELY RAPID PERMEABILITY. SURFACE LAYER IS BROWN SILT 8. PERMANENTORTEMPORARYSOILSTAB/L1ZATION SHALL BEAPPLIED TODENUDEDAREASWITHINSEVENDAYSAFTERFINAL GRADEIS 314 7FMPORA RY SEDIMENT BASIN: LOAM ABOUT 7" THICK; UPPER SUBSOIL LAYER TO ABOUT A DEPTH OF 22" THICK AND IS A STRONG BROWN SILT LOAM, REACHEDONANYPORT/ONOFTHES/TE. TEMPORARYSD/L STABILIZAT/ONSHALLBEAPPLIED WITH/N SEVEN DAYS TODENUDEDAREAS' REACHED ONANYPORTION OF THE SITE. TEMPOR4RYS01L STABILIZ4 TION SHALL BEAPPLIED WITHIN SEVEN DAYS TO DENUDED AREAS' A 7EMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE LOWER PART OF SUBSOIL TO A DEPTH OF ABOUT 28" IS BROWN AND YELLOWISH RED SILT LOAM. }O I- � THATMAIYNOTBEATFINALGR4DEBUTWILL REMAIN DORMANT(UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT FORMED BY C0N57RUC77NG AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. VARY 15 WINTER RYE 3.31 TEMPORARY SEEDING: STABILIZATION SHALL BEAPPLIED TO AREAS THATARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS /N "WET" AND "DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SET7LE OUT. APPLIES BELOW 13E - CA TOC 77N SILT LOAM (25 TO 45% SL OPES) I 9, AFTER PHASE 11 GRADING OPERA TIONS HA VE BEEN COMPLETED AND PHASE / OF THE CONSTRUCTION PLANS HAS BEEN INSTALLED AND DISTURBED AREAS WHERE THE TOTAL COUSTN7RDRAINAGE AREA IS EQUAL TO OR SOIL IS MODERA TEL Y DEEP, WELL DRAINED Wl TH MODERA TEL Y RAPID PERMEA BIL TY. SURFACE LAYER IS BROWN SIL T SOIL IS VERY DEEP, WELL DRAINED, AND MODERA TEL Y PERMEABLE SOILS ON UPLANDS. SURFACE LAYER IS A DARK STABILIZED, PHASE N CAN COMMENCE. B SU GREATER THAN THREE ACRES. THERE MUST BE SU SPACE AND APPROPRIATE LOAM ABOUT 7" THICK, UPPER SUBSOIL LAYER TO ABOUT A DEPTH OF 22" THICK AND IS A STRONG BROWN SILT LOAM, W1 TH APPROPRIATE RAPIDLY GROWNG ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTA77ON BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL M I•' f ! I i i RRM ► • • RRi Ri 4 R R • • Y . i i .•f•• 1�*4 i •,�R ��MII•►•,i•ks�• ♦ •1I�R.,1f� i. RRi�.• r!r� s •�•;.�y!_f�7.�1y� sus =Yew! ' qui*{� ♦ .i lsf�f rs4 .... ifs''!' ff• ,- �-! • Y TOPOGRAPHY FOR 7HE CONSTRUCTION OF A TEMPORARY IMPOUNDMENT. LOWER PART OF SUBSOIL TO A DEPTH OF ABOUT 28" IS BROWN AN YELLOWISH RED SILT LOAM. PNIASE /Il SEQUENCE OF CONSTRUCTION: GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND 1. GRAD/NG OPERA 77ONS FOR PHASE /// /NCLUDEALL OF PHASE H OF THE ROAD CONSTRUCT/0N PLANS ROUGH GRADE THE SITE TO THE 3.18 OUTLET PROTEC770N.• 16 - CA TOC77N SILT LOAM (15 TO 257. SLOPES) RUNOFF TO DOWNSTREAM OR OFF-SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS CONTOURS SHOWN ON THE PHASE 111 EROSION CONTROL PLAN. ENSURE THAT THE DIVERSION DIKES MAINTAIN A POSITIVE SLOPE TO S7RUCTURALL Y LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED SOIL IS MODERA TEL Y DEEP, WELL DRAINED WITH MODERA TFL Y RAPID PERMEABILITY. SURFACE LAYER IS BROWN SILT 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35. DIVERT ALL RUN-OFF TO THE SEDIMENT BASINS, AS SHOWN ON THE PHASE Il/ EROSIONAND SEDIMENT CONTROL PLAN AT THE OUTLETS OF PIPES OR PAVED CHANNEL SEC77ONS To PREVENT SCOUR AT LOAM ABOUT 7" THICK; UPPER SUBSOIL LAYER TO ABOUT A DEPTH OF 22" THICK AND IS A STRONG BROWN SILT LOAM; 2. ROUGH GRADE THE SITE TO THE CONTOURS SHOWN ON THE EROSION CONTROL PLAN ENSURE THAT THE DIVERSION DIKES MAINTAIN A ATTACH FILTER TO STAKES.?i� tE EXND if WTO VHOODEN STAKE O STEEL POST, = 5' MIN. EXCAVATED SOIL BACKFILLED AND COMPACTED 4"x4" TRENCH J SIL T FENCE (D C W rH 0 U T WRE SUPP,; NO SCALE STORMWATER OUTLETS, TO PR07ECT 774E OUTLET STRUCTURE, AND TO MINIMIZE 174E P0IF1V11AL FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED LOWER PART OF SUBSOIL TO A DEPTH OF ABOUT 28" IS BROWN AND YELLOWISH RED SILT LOAM. PCISIRVESLOPETODIVERTALLRUN-OFF TOTHESED/MENTBASINS, AS SHOWN ON THE PHASE IIIEROSIONANDSEDIMENTCONTROL LOS STORMWATER FLOWS. APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL PLAN it. tSLOPE j oR I.ESS1 PER SEC 77ONS. 21B - CULPEPER SANDY LOAM (2 TO 77. SLOPES) 3. INSTALL THE UTILITIES AND ROADS AS SHOWN ON THE PHASE N EROSION & SEDIMENT CONTROL PLAN. THIS INCLUDES PHASE HOF THE 4♦ ce SOIL IS DEEP, WELL DRAINED SOILS SURFACE LAYER IS A BROWN SANDY LOAM ABOUT 4" THICK, SUBSOIL LAYER ROAD CONSTRUCTION PLANS. INLET PROTECTION SHALL BE INSPECTED AFTER EACH RAINFALL EVENTAND REPAIRS SHALL BE MADEAS KENTUCKY 31 FESCUE 128 LBS. 3.19 RIPRAP: CONSISTS MOSTLY OF YELLOWISH RED AND RED CL LOAM ABOUT 40" THICK; AND SUBSTRATUM TO A DEPTH OF ABOUT NEEDED. IF THESTONE FILTER BECOMES CLOGGED WITH SEDIMENTSO THA TITNO LONGER ADEQUA TEL YPERFORMS 175 FUNCTION,. THE RED TOP GRASS 2 LBS. A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT THE SOIL FROM THE EROSIVE ;.0 r4 ;6 50" CONSISTS OF YELLOWISH RED, STRONG BROWN, AND RED SANDY LOAM. STONE MUST BE PULLED AWA YAND CLEANED AND/OR REPLACED. INSTALL ANYREMAINING EROSION CONTROL ITEMS AS SHOWN ON SEASONAL NURSE CROP 20 Les. FORCES OF CONCEN7RAIFD RUNOFF SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE w� no ,-4 1-1 F- THE PHASE 111 EROSION CONTROL PLAN. SEDIMENT BASIN #S SHALL REMAIN /N PLACERS THE UPSTREAMAREAS OF THE PHASE 11 SEASONAL NURSE'ROP 150 LBS ENHANCING THE P07FNTlAL FOR INF7L TRA 71074, AND TO STABILIZE SLOPES WITH SEEPAGE 21C - CULPEPER SANDY LOAM 7 TO 15% SLOPES ( ) CONSTRUCTION PLAN ARE FILLED. ONCE THE UPLAND AREAS ARE CONSTRUCTED AND STABILIZED,SEDIMENT BASIN #$ CAN BE REMOVED ! � PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND � 4�_ SOIL IS DEEP, WELL DRAINED SOILS. SURFACE LAYER IS A BROWN SANDY LOAM ABOUT 4" 7HICK; SUBSOIL LAYER AND THE CUL-DE-SAC, AND RELATED DRAINAGESTRUCTURESAND UTILITIES MAYBE INSTALLED.. FEBRUARY 16 THROUGH APRIL ANNUAL RYE 7HE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA77VE COVER, ETC., CONSISTS MOSTLY OF YELLOWISH RED AND RED CLY LOAM ABOUT 40 THICK, AND SUBSTRATUM TO A DEPTH OF ABOUT 4. PERMANENTORTEMPORARYSOILSTAB/LIZAT/ON SHALL BEAPPLIED TO DENUDED AREAS WITHIN SEVENDAYSAFTERF/NAL GRADE IS MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET ANNUAL RYE ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS. w � 50" CONSISTS OF YELLOWISH RED, STRONG BROWN, AND RED SANDY LOAM. REACHEDONANYPORT/ONOFTHES/TE. TEMPORARYSD/L STABILIZAT/ONSHALLBEAPPLIED WITH/N SEVEN DAYS TODENUDEDAREAS' AUGUST 16 THROUGH OCTOBER � 0 W nL }O I- � NOVEMBER THROUGH FEB VARY 15 WINTER RYE 3.31 TEMPORARY SEEDING: 278 - ELIOAK SILT LOAM (2 TO 7% SLOPES) THAT MAY NOT BEAT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT NOTES: 7HE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING V WEn SOIL IS VERY DEEP, WELL DRAINED, AND MODERA TEL Y PERMEABLE SOILS ON UPLANDS. SURFACE LAYER IS A DARK STABILIZATION SHALL BEAPPLIED TO AREAS THATARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL W1 TH APPROPRIATE RAPIDLY GROWNG ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTA77ON BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL M I•' f ! I i i RRM ► • • RRi Ri 4 R R • • Y . i i .•f•• 1�*4 i •,�R ��MII•►•,i•ks�• ♦ •1I�R.,1f� i. RRi�.• r!r� s •�•;.�y!_f�7.�1y� sus =Yew! ' qui*{� ♦ .i lsf�f rs4 .... ifs''!' ff• ,- �-! • Y YELLOWISH BROWN SILT LOAM ABOUT 6" THICK; SUBSOIL LAYER TO A DEPTH OF ABOUT 40" MOSTLY OF YELLOWISH RED S ONCE PHASE 111 OF & SEDIMENT CONTROL PLAN /S COMPLETEAND WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE IT VESCH STD. 3.32. TESTS AND APPLIED I ACCORDANCE W H GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND AND RED SILTY CLAY LOAM; SUBSTRATUM LAYER IS ABOUT 20 THICK OF YELLOWISH RED, RED, LIGHT RED, AND REDDISH TEMPDRARYMEASURESARENOLONGERNEEDED,ANDONCETHElNSPECTORHASGIVENAAPROVAL, THECONTR.ACTORCANREMOVETHE i RUNOFF TO DOWNSTREAM OR OFF-SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS YELLOW SILT LOAM. EROSION CONTROL MEASURES. NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35. EXPOSED DURING CONSTRUCTION UN77L PERMANENT VEGETA77ON OR OTHER EROSION CONTROL 4 ' PERMISSION. SEDIMENTBAS/NS#1, 3, & 4SHALL BECDNVERTED TOSTORMWATERMANAGEMENTFACILITIES, MEASURES CAN BE ESTABLISHED. 270 - ELIOAK SILT LOAM (7 TO 15% SLOPES) 6. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVINIG PERMANENT SEEDING SCHEDULE SOIL IS VERY DEEP, WELL DRAINED, AND MODERA TEL Y PERMEABLE SOILS ON UPLANDS. SURFACE LAYER IS A DARK ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT PS 332 PERMANENT STABILIZATION THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY PLANTING „ YELLOWISH BROWN SILT LOAM ABOUT 6 THICK; SUBSOIL LAYER TO A DEPTH OF ABOUT 40 MOSTLY OF YELLOWISH RED CONTROL HANDBOOK. NO SCALE r + SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS TO AND RED SILTY CLAY LOAM, SUBSTRATUM LAYER IS ABOUT 20" THICK OF YELLOWISH RED, RED, LIGHT RED, AND REDDISH Z UNLESS OTHERWISEAUTHORIZEDBYTHE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENTAND THE DISTURBED SOIL AREAS {STD. & SPEC. 3.32 OF VIRGINIA EROSION & PERMANENTLY STABILIZE DIS77JRBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO YELLOW SILT LOAM. RESULTING FROM THE DISPOSITION OF TEMPORARYMEASURES SHALL BE PERMANENTLYSTAB/L/ZED TO PREVENTFURTHER EROS/ONAWD SEDIMENT CONTROL HANDBOOK, 3RD ED.) S17E CONDITIONS, AND ALLOWS SELEC77ON OF THE MOST APPROPRIATE PLANT MATERIALS TO SEDIMENTATION. IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLE77ON OF 27D - ELIOAK SILT LOAM (15 TO 25% SLOPES) CONS7RUC77ON AC77W77ES, ALL AREAS WILL RECEIVE A PERMANENT VEGETA77VE COVER. SOIL IS VERY DEEP, WELL DRAINED, AND MODERATELY PERMEABLE SOILS ON UPLANDS. SURFACE LAYER IS A DARK YELLOWISH BROWN SILT LOAM ABOUT 6" THICK; SUBSOIL LAYER TO A DEPTH OF ABOUT 40" MOSTLY OF YELLOWISH RED 3.35 MULCHING: APPLICA71ON OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO 7HE SOIL SURFACE. TO AND RED SILTY CLAY LOAM, SUBSTRATUM LAYER IS ABOUT 20» THICK OF YELLOWISH RED, RED, LIGHT RED, AND REDDISH ALBEMAWCOUNTY PREVENT EROSION BY PR07FC77NG THE SOIL SURFACE FROM RAINDROP IMPACT AND REDUCING YELLOW SILT LOAM. CONSTRUCTM ENTRANCE THE VELOCITY OF OVERLAND )FLOW. TO FOS7ER THE GROW7H OF VEGETA77ON BY INCREASING . AVAILABLE MOISTURE AND PRZOWDING INSULA77ON AGAINST EXTREME HEAT AND COLD, AREAS 29B - FAUQUIER SILT LOAM (2 TO 77. SLOPES) � CURB INLET m ' "" WHICH HAVE BEEN PERMANENIILY SEEDED SHOULD BE MULCHED IMMEDIATELY FOLLOWING SOIL IS VERY DEEP, WELL DRAINED, AND MODERATE PERMEABILITY. SURFACE LAYER IS A REDDISH BROWN SILT LOAM 7O' MIN. SEEDING. AREAS WHICH CANINOT BE SEEDED BECAUSE OF THE SEASON SHOULD BE MULCHED '" ABOUT 7 THICK, SUBSOIL LAYER IS ABOUT 30 THICK CONSISTING OF RED AND DARK RED SILTY CLAY LOAM; $" sM-u "m''w 10" °01 m la- �. USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER WITH PLAN77NGS OF TREES, SHRUBS, SUBSTRATUM LAYER TO A DEPTH OF ABOUT 60" OF RED, YELLOWISH RED, AND STRONG BROWN SILT LOAM. PAMIM OR CERTAIN GROUND COVERS WHICH DO NOT PROVIDE ADEQUATE SOIL STABILIZA77ON BY THEMSELVES, CAN BE USED I(N CONJUNC77ON WITH TEMPORARY SEEDING. 29C - FAUQUIER SILT LOAM (7 TO 15% SLOPES) ' 21A txuERsw�1 C SIDE ELEVATIONAGGRO"M WE 3.36 SOIL STABILIZA77ON BLANKETS & MAT77NG: SOIL IS VERY DEEP, WELL DRAINED, AND MODERATE PERMEABILITY. SURFACE LAYER IS A REDDISH BROWN SILT LOAM \"�""`�' ewarwt: THE INSTALLA77ON OF A PR07EC77VE COVERING (BLANKET) OR A SOIL STABILIZA77ON MAT ON A ABOUT 7" THICK, SUBSOIL LAYER IS ABOUT 30" THICK CONSIS77NG OF RED AND DARK RED SILTY CLAY LOAM, -----� 7W MM. PREPARED PLAN77NG AREA OF A STEEP SLOPE, CHANNEL OR SHORELINE. TO AID IN SUBS7RATUM LAYER TO A DEPTH OF ABOUT 60" OF RED, YELLOWISH RED, AN STRONG BROWN SILT LOAM. 7 M Ct" Oft EROSION ON CR,177CAL AREAS BY PROVIDING A MSCROCL/MATE' WHICI.1 PROTECTS CONCRETE BLOCK wa Asnmm EM OF PAv'T YOUNG VEGETATION AND PRO)M07FS ITS ESTABLISHMENT. APPLIES ON SHORT, S7EEP SLOPES 30C3 - FAUQUIER SILTY CLAY LOAM (7 TO 15%, SLOPES) WIRE SCREED_ _- _ ,�- t WHERE EROSION HAZARD /S HIGH AND PLAN77NG IS LIKELY TO BE TOO SLOW /N PROVIDING GRAVEL* FII TER 0 ADEQUATE PROTECTIVE COVER. 32C - FLUVANNA SILT LOAM (7 TO 159 SLOPES) OR #5 COARSE AGGRE-GA7E 12' MM. ExffmG SOIL IS VERY DEEP, WELL DRAINED, AND MODERATELY SLOW PERMEABILITY. SURFACE LAYER 1S A DARK GRAYISH BROWN 2x-- -,T 3.38 TREE PRESERVATION AND PRO7FC77ON: PROTEC77ON OF DESIRABLE 77REES FROM MECHANICAL OR OTHER INJURY DURING LAND OR YELLOWISH BROWN FINE SANDY LOAM ABOUT 5'" THICK; SUBSOIL LAYER TO A DEPTH OF 55" IS BROWN OR YELLOWISH ,, BLOCK &GRAVEL CURB INLET _ Ip `�� __ DISTURBING AND CONSTRUCAON AC77WTY. TO ENSURE THE SURVIVAL OF DESIRABLE 7REES RED CLAY; SUBSTRATUM LAYER 1S ABOUT 20" THICK CONSISTS OF BROWNISH YELLOW, YELLOWISH RED, AND DARK RED SEDIMENT FILTER moo" Wm A, WHERE 7HEY WILL BE EFFEC77rVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED SILTY CLAY LOAM. NO SCALE + Wo aV9M IS 4`0 PLAN PRO7FC770N, LANDSCAPE BEAIU77FICA770N, DUST AND POLLUTION CONTROL, NOISE REDUC770N, VIEW SHADE AND OTHER EN VIRONAMEN TAL BENEFITS WHILE THE LAND /S BEING CON VER TED FROM 33C - FLUVANNA SILT LOAM (7 TO 15% SLOPES) IMM A O,vrD raN FOREST TO URBAN -TYPE USES APPLIES IN TREE-INHAB17E'D AREAS SUBJECT TO LAND"" i/WZ" WATER HWRANT T14 FRO'3T . DISTURBING AC77W77ES. 39C - HAZEL LOAM (7 TO 15% SLOPES) �12' ► PROHYORN1r 3' OF n� ,RW MV ,V 3.39 DUST CONTROL. SOIL IS MODERA TEL Y DEEP AND EXCESSIVEL Y DRAINED. SURFACE LA YER /S A DARK BROWN LOAM ABOUT 12" THICK; FLM FABRICOFA:' EM of PAVEMENT. REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOL177ON AND CONSTRUC77ON AC77W77ES. TD PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM SUBSOIL LAYER TO A DEPT OF 20" CONSISTS OF BROWN CHANNERY FINE SANDY LOAM, SUBSTRATUM LAYER IS ABOUT CHANNERY FINE SAIVDY LOAM. RrTrumcm e' COWAD N°J 31 Y3mmum 10" THICK OF BROWN SECTIt7N A -A ' i EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY i PRESENT HEALTH HAZARDS, ,TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. 39D - HAZEL LOAM (15 TO 25% SLOPES) '" 1 Nom A MOM" WATO TW OF 1' S REt o DUST CON7ROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF„ DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE SOIL IS MODERATELY DEEP AND EXCESSIVELY DRAINED, SURFACE LAYER /S A DARK BROWN LOAM ABOUT 12 THICK, Z} 10. I - - I- -1IM WA MINIMUM WASH NOME OTA. OF 1 S" VESCH. SUBSOIL LAYER TO A DEPT OF 20" CONSISTS OF BROWN CHANNERY FINE SANDY LOAM, SUBSTRATUM LAYER IS ABOUT - K5 AVW 701IP CONST &M 10" THICK OF BROWN CHANNERY FINE SANIDY LOAM 1 9 ars 64B - ORANGE SILT LOAM (2 TO 77. SLOPES) $• wom0w SOIL IS DEEP, POORLY TO MODERATELY WELL DRAINED, AND SLOW PERMAEABILITY. SURFACE LAYER IS A DARK GRAYISH BROWN LOAM ABOUT 8" THICK; SUBSOIL LAYER TO A DEPTH OF ABOUT 25" CONSISTS OF YELLOWISH BROWN OR LIGHT OLIVE BROWN CLAY SUBSTRATUM LAYER IS ABOUT 10" THICK OF OLIVE SANDY CLAY LOAM. DD) TEMPORARY DIVERSION 93D - WATT SILT LOAM (15 50 257. SLOPES) SOILS ARE MODERA TEL Y DEEP, SOMEWHA T EXCESS/ VEL Y DRAINED WI TH MODERA TEL Y RAPID PERMEABILI TY. SURFACE LA YER IS BLACK AND DARK OLIVE GRAY CHANNERY SILT LOAM ABOUT 10" THICK, SUBSOIL LAYER TO A DEPTH OF ABOUT 12'" CONSISTS OF OLIVE GRAY CHANNERY SILT LOAM; SUBSTRATUM LAYER IS ABOUT 14" THICK OF BLACK STREAKED WITH OLIVE GRAY AND OLIVE YELLOW CHANNERY SILT LOAM. - ATTACH FILTER TO STAKES.?i� tE EXND if WTO VHOODEN STAKE O STEEL POST, = 5' MIN. EXCAVATED SOIL BACKFILLED AND COMPACTED 4"x4" TRENCH J SIL T FENCE (D C W rH 0 U T WRE SUPP,; NO SCALE 1992 3.08 Source: Adapted from VDOT Standard Sheets and Ya. DSWC Plate 3.08-1 . TLC : 49 TABLE 3.31-B ACCEPTABLE TEMPORARY SEEDING PLANT b'IATERIAIS -QUICK JltEF1:I1:ENCE FOR ALL P.r,GJ0NS" Rate Planting 1�a►es fi cie., 1k acre' Sept, i - Feb. 15 50/50 Mix of .Aaartual Ryegrass (i oliuma multi -Etat m) & 50-100 Cereal ()Winter) Rye . (Seoale c=&_) Feb. 16 - Apr. 30 Annual Ryegmss 60-100 (Lalw ,mmi41-(lorurt) May 1 - Aug 31 German Millet 50 (Setaria italica) Snurce: Va, T7,5WC 'I �, ( 16 r-11 71 y\ 1 Ji " . _ � SCOTT/R. COLLINS-Z" r) No. 35791 'T V IIAL v�,��%O) z O E V) 0 z O V) w ice z 0 H N W 0 TEMPORARY j 4♦ ce r' iii a :' a]1'�-w TAY �•+1.+. r..iM{i,t[ �. �, - g ;.0 r4 ;6 w� no ,-4 1-1 F- 0 M TYPICAL GRAVEL STRUCTURE I 0 p _� COMPACTF!) 4_301L ! � � I � 4�_ '' U) w 2: O Cn h th 0 co V9 o U - � w � ZQ tn 1~ � 0 W nL }O I- � zU tu �: � 0 W i TYPICAL EARTHEN �STRUCTURE DSWC Plate 3.11-1 1, V WEn a• D W I Imt - ,..� � - r _p /..�... I, _' , M I•' f ! I i i RRM ► • • RRi Ri 4 R R • • Y . i i .•f•• 1�*4 i •,�R ��MII•►•,i•ks�• ♦ •1I�R.,1f� i. RRi�.• r!r� s •�•;.�y!_f�7.�1y� sus =Yew! ' qui*{� ♦ .i lsf�f rs4 .... ifs''!' ff• ,- �-! • Y °C �y.a � • " r ., .+„ 4 ' ..•.•. .h. i•s h•i ..*.• h'•4 •ifs•a�a i• a ai , N•• .. 1. •IN ', , r + 1992 3.08 Source: Adapted from VDOT Standard Sheets and Ya. DSWC Plate 3.08-1 . TLC : 49 TABLE 3.31-B ACCEPTABLE TEMPORARY SEEDING PLANT b'IATERIAIS -QUICK JltEF1:I1:ENCE FOR ALL P.r,GJ0NS" Rate Planting 1�a►es fi cie., 1k acre' Sept, i - Feb. 15 50/50 Mix of .Aaartual Ryegrass (i oliuma multi -Etat m) & 50-100 Cereal ()Winter) Rye . (Seoale c=&_) Feb. 16 - Apr. 30 Annual Ryegmss 60-100 (Lalw ,mmi41-(lorurt) May 1 - Aug 31 German Millet 50 (Setaria italica) Snurce: Va, T7,5WC 'I �, ( 16 r-11 71 y\ 1 Ji " . _ � SCOTT/R. COLLINS-Z" r) No. 35791 'T V IIAL v�,��%O) z O E V) 0 z O V) w ice z 0 H N W 0 j ce ;.0 r4 ;6 w� no ,-4 1-1 F- 0 M 0 p z H Q z O '' U) w 2: O Cn h th 0 co V9 o U - � w � ZQ tn 1~ � 0 W nL }O I- � zU tu �: � 0 W CL W Ln V WEn a• D W ww V) °C w a 'n W � � a w,-. cmc � N tD W ,moi i S O Q � .-t ,-i ,.� ,� to � � � M L9 {37 z r�_ T_ C? { 1) C7 CV dw CIO d' I CU a) LLJ N .> LL ._._i _J L9 �_ W 0 zirQ W c) I v F___ D W W LU � Ir U) J F_ jLLI Q� Cr Q 0 0 C z :5 Uj Q. j imL g 2: Ce (f) J I 0 37z .. O P_ UT Ij < F_ , . 2 UL. z W W z �� o W 0 W W ce C;6 N 0 z t= ay 0 W H V J w o F__4 3LD w �1, J 0 Cj, cl 11 U , w tu- S. p W N X: 1. V) . JOB NO. ,, �42�98 SCALE O NIA SHEET NO. 7 - �00REMOVE EXISTING TENNIS COURT- ' \ `` �~-.~ ` \ .``` \ MA [(_HI ��| U��U� � *�U�U� �»��U-&-l| �- ^~~ ^ -�~^�-^ ^~ ~~~�� a./A|noateha|sand nnethodsofconstrucdonshaUcon1pk/w�hthe |ate�version ufthe6enera|VVater | 9 / / /^ �� �_~' -' //'-PROPOSED WITH U�� ��U ���U ���-������ and SevverConstruction Spechlcationsasadopted bv'heA|bennaMeCounty Service Author�von �^/r�'�'^���nw���// ^�~ PLAN '``^ January 15,�ggO,except asrnodiGedbe|ovvurinSpecial Notes. ' / / / / '�-� ____��� _~,.~' \/~ \ \ \ b.RVYSAsha||approvea||comstruct)onrnateria|sandnnethodsnfconstruction.Apreconstrocfion /�. COLLINS _ � / � \ \ conferencesha||behe|dvvithRVVSAprior tnthe start ofany vvork. 35781 ~� FL�A�/\|�E -`� \ ,'` � �-���Nl�JVE E�m{S|| / // /� /�/' � //' '--- -- --- --- \\ \\ ` cThe contractor shaUberesponsible for notifying ��issUti|ity . No. -_-___'�,_ d�R\�SAEng|neer(VicLohaF�rta� shaUbe- t'f�dth/eebusinessdaysphorto |' !the start of construction. ILI /e All work is subiect to inspection by RWSA staff. No tie-ins to the existing system shall be made -he -resence of RWSA staff. No work shall be conducted on RWSAwith, - coordination with and ilouifacilities on weekends or holidays without special written permission from RWSA.f. The location of existing utillities as shown on the plans is from data available at the time of design andlocation, size and depth of all existing utilities, both surface and subsurface. The Contractor shallSTOCKPILE Vimmediately notify the Engineer of any discrepancies between the plans and field conditions. TheSURROUNDED RVATIOIZ Contractorshall use due diligenceto protect all utilities and structures from damage at all times,AREA SHALL BE '.i TREE PRESEwhether shown on the plans or not. Damage to any existing utilities shall be repaired by theSILT FENCE PHASEIContractor to the original condition at no additional cost to the Owner.0 BY10 WPg. Erosion and sediment control facilities shall not be permitted in the RWSA easement without specialSTREAM BUFFER\%,' SED BASIN 2PROPOSED DIVERSION BERM. + written permission from RWSA. No grading shall be permitted in the RWSA easement unlessCW 0-35 permitted otherwise by RWSA in writing.ROWCONTRACTOR SHALL ENSURE TC 16.0 MIN.(TY;') Xh. No blasting shall be permitted within ioo feet of RWSA facilities without writtenpermission and ZRWSA approval of the blasting plan. Ground monitoring during blasting and a pre -blast survey mayNAGPOSITIVE SLOPE MAINTAINED, LSHALL BE STABILIZED AS ATPberequired. For blasting within loo feet of any operative RWSA sewerlines, bypass pumping and/orFIRST STEP IN DISTURBANCEpre- and post -CCTV may be required. RWSA may also require certification from a licensedprofessional engineer stating that the proposed blasting will not damage any RWSA facilities.UjAN (TYP'. EXISTINGLIMITS OF DISTURB C� _2Damage to any utilities due to blasting shall be repaired by the Contractor to the original condition at Zno additional cost to the Owner. 0S i. The contractor shall observe minimum separation requirements for utility crossings. When a crossinis made underan existing facility, adequate structural 5upportshall be provided for the existing pipe.0� SOIL DESCRIPTION (TYP.)The area of the crossing shall be backfilled with compacted 57 stone to the springline of the existingOVE E) 16S SOIL LINE MP.)PROPOSED EC MA77ING K`elNew water mai.-,;ns+alla+;ons shall be pressure tes edREQUIRED FOR SLOPESGREATER THAN 3' approved prior to making any permanent connection to the public water system. Approvedmethods..... of filling and flushing new water mains will be required to prevent any contamination of the public% water system,PROPOPOSED DIVERSION BERM. STOCKPILE00OSED SAFE00CONTRACTOR SHALL ENSURE k. No permanent structural facilities will be permitted in the RWSA easement. This includes buildingD 'LOCATION OFSURROUNDE---QUICK SAND, KEEP OUT" I(SEE HEET E-XIS�iING' MA'N'AGEb POSITIVE SLOPE MAINTAINED,—- overhangs, retaining walls, footers for any structure, drainage structures, etc.STEEP SLOPES (TYP.)--,- 18" BERM PROVIDED. BERMT DID'FOR DESIGN PS 1. Trees are not permitted in the RWSA easement.FIRST STEP IN DISTVRBANCE60000 052LUIORTP LAcm/A nON, AND TRENCHING TO THE MINIMUMNECESSARY TO INSTALL THE 8" SANITARY SEWERLINE ACROSS CRITICAL OR STEEP SLOPES TO ASSURE'00see LOCATION OF(S FjPHASEIPORTAIN i5F SED BASTPT SFMRUj_49P 0ALCONTRACTOR SHALL ENSURE0 ZONING:EAM466 n 12 X70 0.45 AC,POSITIVE SLOPE MAINTAINED,,18" BERM PROVIDED. BERMEXIST SERVED% SHALL BE STABILIZED AS A --,FIRST STEP IN DISTURBANCElipSTEEP SLOPES (TYP.)ING PRDDCONTRACTOR SHALL ENSURETHPOSITIVE SLOPE MAINTAINEDZ 18" BERM PROVIDED. BERMSHALL BE STABILIZED AS AFIRST �STEP IN DISTURBANCESTINSTALLED WITH THE PHASE I EROSION &00, WPO @ NO UCTURES36,00AND PIPES 35,37,43,49,51., & 59 SHALL BESTREAM BUFFER , STR-60, ALL OTHER STRUCTURES SHALL BE P UjSF 1-4 �44, � +*m+,���n���oc/nm/n��cwe/ /n-- 482 --��--/ �p\ INSTALL - / \ i \ \ � / KT�N �FTHE PHASE 11 EROSION 2U|~^ 8A�C��EP�UT" 0JMc'� LPLAN':Loo'-YEAR~=�` K`nY" SF \ --'- - ^ TD LAVASSEUR, ROGER ZONING: R-4 RESIbENTIAL KCP Illy OUTFALL P)IPE L9 DESIGN INFORMATIO AT RED GREATER THAN 3:1 TECHO TRUSTEESS 100, WPO 07600000005180 SIDENTIAL STREAMBUFFER ZONING: R- NT co 3.933 AC. LU EXISTI�G 4 STEEP SLOPES TO DRAINAGE DIVIDE (TYP.) 482 C\j CL EXISTING CRITICAL SLOPES SF \BERGLAND, FRANK Z IN�YRIVII -1 ION Z FOR DESIGN < Lij PROPOSED 4UNIP l! PLANTINGS REQUIRED FOR S OPES IV 04 V k IN RAV INLET SEDIMENT FILTE TS Uj R-1 RIESIDEI NE OR �ADELANE Ak LPROPERTY LI 500 Uj ZOI$IING: R-* RESIDENTIAL CRISPENS,,DAVID\G OR, ARA D Ul 10 X, 06 ZOJING: R-1 RESIDENTIAL f LIMITS I/ /I I CE DIVERSION DIKE CAN BE INSTALLED AND AREA ff NOTE' ZONIN I RESIDENTIAL OFSI E FILLED, AS SHOWN, ONCE THE INSTALLATION U IMENT BASIN i HAS BEEN COMPILE rr S OF DI OF SED 0OW06" 1_4� S R �P 0 0000000400 Nd -1 RESID PROPOSE LA INGS�- LU REQUIRED FOR SLOPES 090 LU PENAV`AL ONS GREATER THAN ZONJNG. -1 RE IDENTIAL STEEP SLOPES (TYP) JOB NO. 0.1/92 AC QL GRA //SC ALE 01�i��,� yto "t";/ P 090E000000 GINA MITCHELL., 50' INITIAL 7, J11 4� SON C OR KATE A SH EET NO. � ko LU�qko � � � LU � � 0 Uo- ce W � UO ce Uj � fle �� o � m� CL � LU 0.m LU , STR-60, ALL OTHER STRUCTURES SHALL BE P UjSF 1-4 �44, � +*m+,���n���oc/nm/n��cwe/ /n-- 482 --��--/ �p\ INSTALL - / \ i \ \ � / KT�N �FTHE PHASE 11 EROSION 2U|~^ 8A�C��EP�UT" 0JMc'� LPLAN':Loo'-YEAR~=�` K`nY" SF \ --'- - ^ TD LAVASSEUR, ROGER ZONING: R-4 RESIbENTIAL KCP Illy OUTFALL P)IPE L9 DESIGN INFORMATIO AT RED GREATER THAN 3:1 TECHO TRUSTEESS 100, WPO 07600000005180 SIDENTIAL STREAMBUFFER ZONING: R- NT co 3.933 AC. LU EXISTI�G 4 STEEP SLOPES TO DRAINAGE DIVIDE (TYP.) 482 C\j CL EXISTING CRITICAL SLOPES SF \BERGLAND, FRANK Z IN�YRIVII -1 ION Z FOR DESIGN < Lij PROPOSED 4UNIP l! PLANTINGS REQUIRED FOR S OPES IV 04 V k IN RAV INLET SEDIMENT FILTE TS Uj R-1 RIESIDEI NE OR �ADELANE Ak LPROPERTY LI 500 Uj ZOI$IING: R-* RESIDENTIAL CRISPENS,,DAVID\G OR, ARA D Ul 10 X, 06 ZOJING: R-1 RESIDENTIAL f LIMITS I/ /I I CE DIVERSION DIKE CAN BE INSTALLED AND AREA ff NOTE' ZONIN I RESIDENTIAL OFSI E FILLED, AS SHOWN, ONCE THE INSTALLATION U IMENT BASIN i HAS BEEN COMPILE rr S OF DI OF SED 0OW06" 1_4� S R �P 0 0000000400 Nd -1 RESID PROPOSE LA INGS�- LU REQUIRED FOR SLOPES 090 LU PENAV`AL ONS GREATER THAN ZONJNG. -1 RE IDENTIAL STEEP SLOPES (TYP) JOB NO. 0.1/92 AC QL GRA //SC ALE 01�i��,� yto "t";/ P 090E000000 GINA MITCHELL., 50' INITIAL 7, J11 4� SON C OR KATE A SH EET NO. � V @ 7 @ @ LIMITS OF DISTURBANCE (Typ.) 0 H Co., FLOW 6IR ECT16 RROW X� UL) Z` __15S E T E @ X�ITING TREAM MATC TO INI�` 0761100401 00 Ljj V, Q__ COTT COLLINS SF DEILY, BA ARA J @ Oo, EXISTING ioo-Y ZONING- RD R 4�, U, FLOODPLAIN No. 15?91 �1� EXISTING STREAM ------ .. . ... ul X V LU IV @ /7 lw ON L 100, WPO g 0 A PROP D Lu EAM BUFFER RAYDO, BENJAMIN J OR 0 STOCKPILE AKY C y \\-,.'AREA SHALL BE .22 AG. SURROUNDED PHASE I 4 1�7 106, wpo \�y S NCE q -AAA R� i;=_ *ge A 7.24 AC. �x 076PRO6� R, SA PROPOSED DIVERSION BERM. CW 0,35 x Z,� SIN( Hq SINGE x CONTRACTOR SHALL ENSURE r:'W�/ . . . . . . Tic 16.0 MIN. Zoym: �RD .7D g d POSITIVE SLOPE MAINTAINED, W / . .. ... 3.8" BERM PROVIDED. BERM L ING C kE (TY�_. �001700 RITI(CAL SLOPtS OF D 5TURBA' SHALL BE STABILIZED AS A RIA R Ix '-FIRST STEP IN DISTURBANCE LIMITS OF DISTURBANCE YO "ING: PRD- f Nr 'TRE ERVATION AREA (TYP. z 4S6 0 w" tkiTt 076RO040( -TREELINE (TYP.) R E PRE EXISTI N G A ALBEMkRLt106UNfY _17 SERVI ,,-E THORI S _bESCRIPTION (TYP.)-,.,, u /X 11r, ZONI OIL U) AC, W j PROPOSED EC MATTING z 0 REQUIRED FOR SLOPES Ylka�\L S zw EXIiTIINGC�I I-PPiiS 1.00, WPO 4-9 Ln STREAM BUFFER GREATER THAN 3-1 PROPER PROPOSEDS f, Q INSTALL SIGNS "WARNING C A I IL PET -iz. QUICK SAND KEEP OUT' ALIMITS OF DISTURB TY LINE P) /'4/ IXAAR AF6� FENCE *9 LIJ LIJ X/1"'ll: Lj x Li ...... SOIL Nt I YV.) FOR DESIGN PS - x INF R AT -C" �Y /uj Lu F SF ALSLC /EXISTING CRITIC t h 'k Luuj E @ "z EXISTING TREELIN (TYP.) V) x, SF J_ J� 'SCRIPTION (T,l A. SOIL DE C% E`SHEET 14 FOR OP uj SE @ u ------ DESIGN INFORMATION F- @ -k ra z, U) @ Ski LIMITS & DISTURBANCE (TYP.) 41 5F _X" --x ZZ4 uj @ 03 EXISTING io Y, y" z qPES FLOODPLAIN CRITICAL SL EXISTING 1 V I KEE PRESERVATION AREA (TYP.) v i�6 T H @ 0 INE D S tHis sHE T 46,9� @ J @ LIMITS OF DISTURBANCE (TYP.) _2 V j EAM no LIMITS OF D Z/ EXI TING STIR 'z/- z 0 EXISTING ioo-YR x, @ TP u ul) z ui --"NOTE: TOTAL LIMITS OF DIS 0 REDFIELDS COMMUNITY Lu "AIN FIELD ASSOCIATION INC C/O PROPOSED WITH THIS PLAN 47.4o ACRES. COMMUNITY GROUP > XX )8 OOQO 0�73QG LC 0 LG' ZONING: PRO q lzamj�u:,R 1.748 AC. PFCAL ARE& '4 :�:R FIELDSCOMMUNITY 4 Ile 2 AU 001 Ljj — ------ T R OOOOOBO "X f SOCIATION INC C/O C /sC 'ROUP ).,, ALE -7- __ ­7�--- 1 0 0 F, 0.991 AC. 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Lu REMOVE EXISTING < 076OOb000049B,? `STRUCTURES fiA WINTEkGREEr% FAR LAND p, TRUST; kI �D;�BARRI& &I 076ROO40001 100 JAMES N I C) MURPHY, EDWARP MICHA RUSTqES, USF "X, c:) 1100 XEINI� I I I D'I S' 1000 0 REV T/A ETAL JIM SERVAtIdN -05. 109 A6. & SUSAN,�­ 1w -1 " I '_, L%,: " ZONING:4 D c\j RANDALL MURPHY REV`T/A IREEPRE t 'N 2 ETAL AREA (TYP.) 1V ZONING: PRD X Lu X2 F b 0.213 AC� STOCK' PILE REMOVE�EXIST/ G/' A s__ uj KEA SHjALL 13E:. FENCES SURROUINDED 076ROO40001200 JOB NO. 18 V PFAFFENBERG MI BY SILT FENU, . MR # OR BRYNA C S EM ZONING: PRD BLOCK AND GRAVEL OP 142098 0,222 AC, 7__T SEDIMENT FILT Aw D 77 2 SCALE t LOf 46 4) 0 =5 5F .... ------- SHEET NO. 00, SON R JR 0 \IVIATC�U� ET 076RO04 13 1 " , u RM. 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XTILE i>u OUTLET PROTECTION W/ GEOTE FILTER FABRIC UNDERLAY GUYEN, PHUONG-UYE MENT,\ 41 (W2=4.5', W2=7.5' L=6' D=2'MIN.),, ZONING: R-1 RESIDE 46 AC. LAO HEATHER IM -IT F DS/TURB� 50 076ROO100000BO L so ANCE X I Tly NOTE: SED N 5 SHALL IMENTLAS' �OMMUNI A40CIATIqN INC C/O 1 BE FILLED AFTER ALL CONSTRUCTION CO MUNITYiGROL LLJ Rep 00 1P STABILIZATION ACTIVITIES IN THE FIELIDS 44#1 UPLAND AREA HAVE BEEN COMPLETED. cb EPSHEET14FOR r THIS POINT, SEDIMENT BASIN 5 CAN �A 090E0 DESIGN INFORMATION BE REMOVED, AND REMAINING CUL-DE-SAC, UTILITIES, AND DRAINAGE PENA L ONS VORILSESA ZONJN, nAL STRUCTURE STALLED. f CE Op 2 X70 + 4f DD 441 T, 'kESERV�Tl N REA(TYP.) 0i TRE�P co 10 to �_, *E00000002 HI iNUF_QKKMAI 4& ZONING: R-,VRESI TIAL 5 TP E 5EESHEETi L( LOT68 0.1 r L /,L 48 AC FOR DESIGN �S B55 7 HAS 11 LOT6' f INFORMATION 7 W 'SED BASIN c� AGE DIVIDE (TYP.) DRAIN L:bT 62 A 3--3o AC. I 076RON0000500 7 P V SI N BERM. co P q WILLS, JEFFREY L OR ELIZA�E H Tc 8.o MIN. 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NFOR , ­ 'L / , - - I' I w 076ROO400 REXROD UJ SF .,r,7 I '\LOT 71 ui UJ 74 ul uj P.) `LIMITS OF DISTU vquvu u) PU, LI DRA ice 06 ZONIN 076RO LL! 0. c Lij z ;Wv/2 uj 0 �BLOC)e rDGRAVEL DROP ' / // / - / / 4 INLET SEDIMENT FILTER U) 4w 076ROO40001C LANGMAN, M,� THAW 100 4(k* 0 OING ...... AC. UJ 4% rr uj _S'0F 4W ...... LIMI1 61STURE ri- # - I i \ \ \ I , -3 07600600049BO I io ,o .. - < WINTERGREEO FARO LAND1 076R00400C 11100 TRUST; RICHARD) RBARRICK �OT 54 MURPHY, EIDWARO"MICH). JAMES 0 REV T/A ETAL & 14USAN f ZONING.,i­_ V \'65,109 AC. 0 RANDALL MURPHY RE I/A TREE PRESE VAt1dN LOT 47 ETAL P AREA (TY, ft ZONING: PRD I P Lu op, �� * /_ 0.213 AC. T 48 STC)CKPILE $f Lu rn REA SHALL BE�- 41111 ui F SURROUNDE �7- ­:l`-BYSI1LTFENC� JOB NO. RAVEL ZONING: PRD bT PFAFFENBERG M1( 076RO OR BRYNA C S EM BLOCK G 'r, D T INLET SEDIMENT FILTI:P 0.222 AC. 142098 Lit CALE S 70N�, T iN MATC I D S OP LOT 52 LOT,53. OT 50 LOT� 46 50 00 SHEET NO. P MARK MERSON RJR OR LAU L t 1-4 3.2 '&IVERSION BERM., MATC 0 13 L.. IVu I Vr Ljl,�) Dmi-Ic'M T 1-.) I VK SEDIMENT BASIN #3 DETAIL (SCALE 1."=20') Lo +f'lIR.�I � I LKA-Y YTTn M'T"l l .v.vnvrv.v.... SECiRON A -A PIPE OUTLET TO R.AT AREA WITH NO OcnNEp CHANNEL f' d PLAN OUTLET Q28277 NO SCALE Sediment Basin #3 Design CREST OF EMERGENCY SPILLWAY drainage area (acres) 16.24 basin volumes: (using 2' contour intervals) 7.14 elevation (ft) contour area (sf) volume (cy) 476.00 8451.0 0 478.00 10896.0 714.6 480.00 13632.0 1621,2 482.00 16604.0 2739.2 484.00 19803.0 4085.9 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 requilred (cy) (67*DA) principle spillway crest (ft) dry storage provided at this elevation (cy) diameter of dewatering orifice (in) diameter of flexiblle tubing (in) (orifice+2") runoff: C (use 0.45 for bare earth) tc (min) 12yr 3.60 Q 2yr 125yr 61.10 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) 1088.1 478.82 1088.1 552.2 477.52 1.3 1088.1 481.60 1370.0 8.0 10.0 0.43 14.5 25.14 42.60 2.40 36 42.60 54 68 7.50 18 MIN. 1'Wt SPILLWAY 2' WITHOUT CREST OF EMERGENCY SPILLWAY DESIGN HIGH WATER drainage area (acres) (28-1M STORM ELEV.) 7.14 basin volumes: (using 2' contour intervals) bottom of basin (ft) 477.93 ------- ``I�� 476.00 RISER CREST " DRY " STORAGE !' 478.00 3805.0 DEWATERING DEVICE " WET" TRA S 0 Gi; 4812.0 565.9 SEDIMENT CLEANOtii PON (" WET • STORAGE REDUCED 5920.0 962.7 484.00 TO 34 C,Y./ ACRE} 1445.3 design high water (ft) 482.60 top of dam (ft) 484.00 top width of dam (ft) 10.0 bottom of basin (ft) 476,0 approx. bottom dimensions: 75'x155' upstream face slope: 3:1 downstream face slope: 3:1 baffles: NO length of flow, L (ft) 185 effective width, We (ft) 88 L 1 We (baffles not required if > 2) 2.1 collars: YES depth of water at spillway crest (ft) 5.60 slope of upstream face (7-1) 2:1 slope of barrel (Sb) 0.53% length of barrel in saturated zone (Ls) 33.71 number collars required 2 dimension of collars 3.7x3.7' emergency spillway: YES required capacity (Q25-Qp) (cfs) 17.48 bottom width (ft) 80 slope of exist channel (ft/ft) 25.0 % minimun length of exit channel (fit) 40 crest of spillway (ft) 482.60 TOP OF DAM = 484.0 36" RCP RISER W/ 6`x6'x18" CONCRETE RISER FOUNDATION [-RIM ELEV.' 48x.6 SEDIMENT BASIN #2 DETAIL (SCALE,"=20') Sediment Basin #2 Design design high water (ft) 479.45 drainage area (acres) 478.4 7.14 basin volumes: (using 2' contour intervals) bottom of basin (ft) 477.93 elevation (ft) contour area (sf) volume (cy) 476.00 2898.0 0 478.00 3805.0 247,5 480.00 4812.0 565.9 482.00 5920.0 962.7 484.00 7129.0 1445.3 485.00 7771.0 1721.1 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 (fit) 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) 1 2yr 3.50 Q 2yr 1 25yrr 5,80 Q 25yr rinciple spillway available head (ft) diamleter riser (in) spilimy capacity, Qp (cfs) diamreter trash rack (in) barrel length (ft) head on barrel through embankment (ft) diameter of barrel (in) SOt3 design high water (ft) 479.45 top of dam (ft) 478.4 EXISTING GRADE 242.8 bottom of basin (ft) 477.93 approx. bottom dimensions: 1.5 upstream face slope: - downstream face slope: 478.4 475 482.00 length of flow, L (ft) 484.3 effective width, We (ft) 5.0 y - PROPOSED GRA�E 7A • - i t . ,t: t • ' 't1=11' 111' It' 'Il' tl. 475 [OUTL BASfN-F ..00R=X76.0' "...r 0.42 slope of upstream face (Z1) TI 18" R P BARREL length of barrel in saturated zone (Ls) 17.39 450 " WET ' sTaRacE PROTECTION INV IN. 475.36, INV OUT. 475.00 24 required capacity (Q25-Qp) (cfs) 17.39 bottom width (ft) 36 =68,0, S=0.53% minimun length of exit channel (ft) 7.50 crest of spillway (ft) 438 , IIIIIMIrrI ♦ Irrriaiair irrrrrurrrrrr ♦ , t s.. I / nirrrrrrirr r. r f ♦♦ ♦ riiii&Nr�rrrf f : 11.!t.I1.G°�*♦♦♦���%'I�♦I♦/I/Ilrrlr�%rrrrl�j%rl�'r/%/%/,♦� ; I�I�Ii�irrrrrirar/Ir/rla.r/I/I/�aaa 438 ( A♦�1+e M•r r rirrME NAFJJ r r 1-1i`v�!,1♦♦jtliiii�iii�rriii i� jf%i��s�� "If:-11��I�Iirfrrrrrr.Irr. X11=11-` L=75.0, S=o.67% °o �a Cn 0 o m 0 °o o $ In h O O Cq N 00 ,� W 00 0 "6 O W tq00 available volume before cleanout (cy) (34*DA) -0+25 0+00 0+50 1+00 1+50 SEDIMENT BASIN #3 PROFILE (SCALE1"=40 2+00 2+50 2+75 c, i � �f1ifC f!�=1 ! -I r 1 -; SIL T FENCE sF (WITH WIRE SUPPORT 0D NO SCALE - _ -1 c� II_ c� 11- =1 Flow r =HII-i EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. TOP OF DAM = 485.0 DESIGN HIGH WATER (28 -YR. S70RU ELEY.) a .s' MIN,•^1 CRY ' STORAGE " WET. STORAGE - SETSIMENT CLEANOUT' FAINT (` WET " STORAGE REDUCED TO 3A C.Y./ ACRE) MIN, I' SW SPILLWAY CREST OF EMERGENCY 2' AITHOUT SPILLWAY RSER CREST CE NG 478.4 design high water (ft) 479.45 top of dam (ft) 478.4 top width of dam (ft) 242.8 bottom of basin (ft) 477.93 approx. bottom dimensions: 1.5 upstream face slope: - downstream face slope: 478.4 baffles: 482.00 length of flow, L (ft) 484.3 effective width, We (ft) 5.0 L ! We (baffles not required if > 2) 7A • - i t . ,t: t • ' 't1=11' 111' It' 'Il' tl. 475 collars: depth of water at spillway crest (ft) 0.42 slope of upstream face (Z1) 15 slope of barrel (Sb) 10.50 length of barrel in saturated zone (Ls) 17.39 number collars required " WET ' sTaRacE dimension of collars 3.00 emergency spillway: 24 required capacity (Q25-Qp) (cfs) 17.39 bottom width (ft) 36 slope of exist channel (ft/ft) 75 minimun length of exit channel (ft) 7.50 crest of spillway (ft) 18 , 24" RCP RISER W/ 6'x6'x18" CONCRETE RISER FOUNDATION FRIM ELEV. 482.0 483.00 485.00 10.0 476.0 41'x76' 2:1 3:1 YES 90 65 1.4 YES 6.00 2:1 0.67% 36.99 2 3.8'x3.8' NO NIA NIA NIA %D N/A NIA 50o EXISTING GRADE 36" RCP RISER W/ 6'x6'x18" CONCRETE RISER FOUNDATION. RIM ELEV: 453.75 MIN. 9° WI SPILLWAY 2' WITHOUT CREST OF EMERGENCY SPILLWAY drainage area (acres) 21.31 -------OUTLET - DESIGN HIGH WATER '(26 -YR. STORM ELE ,) PROTECTION volume (cy) D.8' t 448.00 11105.0 �iX ti ;., .,. •s;:,•.,.; ;-.�� -� ' � '' ` • - i t . ,t: t • ' 't1=11' 111' It' 'Il' tl. 475 900.5 RISER CREST 452.00 15494.0 ,� BASIN FLOOR=476.o' .' • 454.00 19076.0 3241.7 " WET ' sTaRacE GRADE 18' RCP BARREL 456.00 22892.0 PROPOSED GRADE %'�♦+♦♦♦O++p+♦�••!.ob•.•.o 450 iii ♦ 1 1 I 1p rim f:::<::ni�rn 1 I I 'i♦�4�i+''i♦piliiiri��':iiiiiia�iiiirh�i:.:: I NV IN. 476.00, INV OUT. 475,00 •r:•QN♦�♦�0�+�'�9��+iiiiiiii%ii%iii ;I'r�r��iii. r ♦ - s t • t 11:11:1'%�i ��+♦ii �ii�:::i.= .I , ♦ , I ri r I �: ♦ ♦ ♦ rill rrr���r. I I J , r ♦ ♦ ! saw ♦ o I I f d f , IIIIIMIrrI ♦ Irrriaiair irrrrrurrrrrr ♦ , t s.. I / nirrrrrrirr r. r f ♦♦ ♦ riiii&Nr�rrrf f : 11.!t.I1.G°�*♦♦♦���%'I�♦I♦/I/Ilrrlr�%rrrrl�j%rl�'r/%/%/,♦� ; I�I�Ii�irrrrrirar/Ir/rla.r/I/I/�aaa 438 ( A♦�1+e M•r r rirrME NAFJJ r r 1-1i`v�!,1♦♦jtliiii�iii�rriii i� jf%i��s�� "If:-11��I�Iirfrrrrrr.Irr. X11=11-` L=75.0, S=o.67% 1: � 11:11:11:11:�1:11�1_�11:11:,1:11=�11.- / I r • pri 1427.8 CO O O Cq 451.00 top of dam (ft) 456.50 rn -;r N 10.0 available volume before cleanout (cy) (34*DA) 724.5 bottom of basin (ft) -0+25 0+00 0+50 1+00 1+50 2+00 2+25 SEDIMENT BASIN #2 PROFILE (SCALE '"=40') SEDIMENT BASIN #z DETAIL (SCALE 1"=20) Via,_ $ �� ..� a w 3 Tf c zC}6 Ic s ,G _F A I T yg OUTLET OTECTION W/ 1 -y GEOTEXTIL FILTER FABRIC UNDERLAYMENT. L=1o', W1=7. ', W2=12. ', D=2' MIN.) j 00 0 \\ VD, TSS! W-1 `\ \i,, I -A ,ter+ VDOT #3 COARSE AGGREGATE OUTLET PROTECTION W/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT. (L=6', W2=4.5', W2=1 .5', D=2' MI OP t r 0 tt k 1 00� 0+5 i E�X 11 f 1 t y r - v -- �`so S FETY E CE - \ % J / 'A\ It u� \ \ -I tk I 0 ! \\ ° I i \ SB1 It �� 1 ` , h VFt fi c r 18" RCP �ARREIL j ! INV IN. 446.32 N tir , n i INV OUT, 446.00 j I L=,64.0' S=O 50% ! t ! 456` t I 36" RCP RISER W/ j 6'x6'x18" CONCRETE �ISER FOUNDATION 4,/ 0 '-I i -G 13 450 f r l k / I I I I 1 i 458 I / - I N. t ! ! - r - -- �� 460- 0 60 ; ��( i i__ i I !E t i- - (, I- - a,� - 11_.-_�I : _..I I_ __ I r_ ,_�, I , _ I I r: - ! i-- - - ! - Irl:___ ' I I , ,_i :_I , : I I --� -1 l I�( .I I I :- s -il!„ 1 _ SEDIMENT BASIN BAFFLE DETAIL NO SCALE SHEETS OF 4'x8'xj' EXTERIOR PLYWOOD OR EQUIVALENT 8" RISIER CREST ELEVATION 1 I I 4' 1 1 1 1 i t I I I POSTS' MIN. SIZE 4" SQUARE I rl II I F 4'74 Sediment Basin #1 Design OUTLET - - PROTECTION 36" RCP RISER W/ 6'x6'x18" CONCRETE RISER FOUNDATION. RIM ELEV: 453.75 MIN. 9° WI SPILLWAY 2' WITHOUT CREST OF EMERGENCY SPILLWAY drainage area (acres) 21.31 basin volumes: (using 2' contour intervals) DESIGN HIGH WATER '(26 -YR. STORM ELE ,) elevation (ft) contour area (sf) volume (cy) D.8' t 448.00 11105.0 tt-tit. �t ;., .,. •s;:,•.,.; ;-.�� -� ' � '' ` • - i t . ,t: t • ' 't1=11' 111' It' 'Il' tl. IL �.� 900.5 RISER CREST 452.00 15494.0 ,� " DRY' STORAGE -- ti::�.'.'.':,.^::.'. .' • 454.00 19076.0 3241.7 " WET ' sTaRacE GRADE 456.00 22892.0 4793.9 �,f�p��o,��//riirric::a>Tn xn�j,dlil�i►:: %'�♦+♦♦♦O++p+♦�••!.ob•.•.o ..::::.....:. iii ♦ 1 1 I 1p rim f:::<::ni�rn 1 I I 'i♦�4�i+''i♦piliiiri��':iiiiiia�iiiirh�i:.:: I _- - ♦ ♦ t '♦ • IJI:II:ICI:11:�1'h�i♦i+i♦i+i++♦+i'•'•'•'!9:::="====::.• ♦ ♦ ♦......... . ♦♦ .. • t � ♦ •r:•QN♦�♦�0�+�'�9��+iiiiiiii%ii%iii ;I'r�r��iii. r ♦ - s t • t 11:11:1'%�i ��+♦ii �ii�:::i.= .I , ♦ , I ri r I �: ♦ ♦ ♦ rill rrr���r. I I J , r ♦ ♦ ! saw ♦ o I I f d f , IIIIIMIrrI ♦ Irrriaiair irrrrrurrrrrr ♦ , t s.. I / nirrrrrrirr r. r f ♦♦ ♦ riiii&Nr�rrrf f : 11.!t.I1.G°�*♦♦♦���%'I�♦I♦/I/Ilrrlr�%rrrrl�j%rl�'r/%/%/,♦� ; I�I�Ii�irrrrrirar/Ir/rla.r/I/I/�aaa 11..1♦ riiii rigs -:� ..♦wiwiraw.aw�w 1111=11=1t.:II=11-1 . ( A♦�1+e M•r r rirrME NAFJJ r r 1-1i`v�!,1♦♦jtliiii�iii�rriii i� jf%i��s�� "If:-11��I�Iirfrrrrrr.Irr. X11=11-` � � 1: � 11:11:11:11:�1:11�1_�11:11:,1:11=�11.- / I r • 4'74 Sediment Basin #1 Design OUTLET - - PROTECTION 36" RCP RISER W/ 6'x6'x18" CONCRETE RISER FOUNDATION. RIM ELEV: 453.75 MIN. 9° WI SPILLWAY 2' WITHOUT CREST OF EMERGENCY SPILLWAY drainage area (acres) 21.31 basin volumes: (using 2' contour intervals) DESIGN HIGH WATER '(26 -YR. STORM ELE ,) elevation (ft) contour area (sf) volume (cy) D.8' t 448.00 11105.0 0 450.00 13240.0 900.5 RISER CREST 452.00 15494.0 1963.6 " DRY' STORAGE -- ti::�.'.'.':,.^::.'. DEWATMO 454.00 19076.0 3241.7 " WET ' sTaRacE GRADE 456.00 22892.0 4793.9 INV IN. 446.32, L=64.0, S=0.50%_-- 456.50 24215.0 5230.1 SEDIMENT CaAHOW POINT (" GEERR)EDUCED 412 TO 34 C3 f wet storage: wet storage required (cy) (6i7*DA) 1427.8 design high waiter (ft) 454.75 dewatering orifice elevation (ft) 451.00 top of dam (ft) 456.50 wet storage provided at this elevation (cy) 1427.8 top width of darn (ft) 10.0 available volume before cleanout (cy) (34*DA) 724.5 bottom of basin (ft) 448.0 cleanout elevation (ft) 449,59 approx, bottom dimensions: 88'x212' distance from cleanout to orifice (ft) (> 1') 1.4 upstream face slope: 2:•1 downstream farce slope: 3:1 dry storage: dry storage required (cy) (67*DA) 1427.8 baffles: NO principle spillway crest (ft) 453.75 length of flow, IL (ft) 205 dry storage provided at this elevation (cy) 1633.0 effective width„ We (ft) 92 (diameter of dewatering orifice (in) 8.0 L I We (baffles not required if > 2) 2.2 diameter of flexible tubing (in) (orifice+2") 10.0 collars: YES runoff: depth of water at spillway crest (ft) 5.75 C (use 0.45 for bare earth) 0.46 slope of upstream face (Z:1) 2:1 to (min) 13.5 slope of barrel (Sb) 0.5% 12yr 3.70 Q 2yr 36.27 length of barrel in saturated zone (Ls) 35.2 125yr 6.10 Q 25yr 59.80 number collars required 2 dimension of collars 3.8';03.8' principle spillway: available head (ft) 2.75 emergency spillway: YES diameter riser (in) 36 required capacity (Q25-Qp) (cfs) 23.53 spillway capacity, Qp (cfs) 36,27 bottom width (ft) 50 diameter trash rack (in) 54 slope of exist channel (ft/ft) 25.0 % barrel length (ft) 64 minimun length of exit channel (ft) 35 head on barrel through embankment (ft) 8.75 crest of spillway (ft) 454.75 diameter of barrel (in) 18 475 OUTLET - - PROTECTION 36" RCP RISER W/ 6'x6'x18" CONCRETE RISER FOUNDATION. RIM ELEV: 453.75 EXISTING GRADE 45 _ t BASIN FLOOR=448.0' 18" RCP BARREL PROPOSED GRADE 425 INV IN. 446.32, L=64.0, S=0.50%_-- INV OUT. 446.00 412 rn OR o In o o 00 I ®0 N � � 00 06 It c6 c6 %t In Ln -0+25 o+aa 0+50 1+00 1+5o Z+00 2+Sa 3+oa 3+50 3+75 SEDIMENT BASIN #a. PROFILE (SCALE "'=40') 40�1_ SCOTTOLLINS'�; NO. <)a j9_l � ��- rrr ry�C"�roNAL Z (n W Z O In w Ce � C .-I n C .�I h aUj `c t- U Z J C `u Z c 2: L U 03 U1 � p D (n U Z Q o Z a t -1 C ? o W 2 LU C Lu In 'n w w w w ,0 'U : r , rl ,-, •,,,, tV f V M M M Cn _" r � l� U� t'7 � CO N C z 1 I Z cv O N ~ WN > .� W < -1 \ rU W , V) tD I-� I-- < O Z T_ � ' _ L � ll N 3 U ON I cy- - W W WZ I- � O = M U� L I-- Z } W 3 W W a r W CZ U a� � J �t 7 O lJ 0 _ J C7 tr�"9 C o N UJ L� 0 » V a+ v Uj_ l O LU N � o CL US i BN • JO 0 a 142098 SCALE 0 AS SHOWN , N SHEET NO. o n 1l+ v �y SEDIMENT TRAP #i- DETAIL (SCAB X WEIR OUTFALL (L=26', =si 6" D=2'MIN.) 'A I sediment I rap 1 Design 24" RCP RI ER W/ 4'X4'X18" CONCRETE 24'1 RCP RISR W/ 4'X4'x18" COCRETE RISER FOUNDATION. RIM ELEV: 473.60 525 drainage area (acres) (<3) 1.57: drainage area (acres) ....... . .... DESIGN HIGH WATER -traia volumes: basin volumes: (using 2' contour intervals) top width of dam (ft) '(25 -YR. STORM ELEV.) I elevation area (sf) volume(cfY volume {cy) ....... . ... ............. i 1368 531 0 0.0 0 ------ 532 1672: 1,517 56.2: 671.4 3:1 533 2002t 3,3521 124.1: 1471.6 DWI STORAGEDMATERING . ...- . _" V, 534 2357. 51529' 204.8: 2408.1 ^ WET STORAGE ........... 535, 2737, 8,074 299.0 L / We (baffles not required if > 2) SENMENTCLEANOUT POINT WET . STORMUCED 536 3142 11,0114 407.8: 15" RCP BARREL INV IN. 5og.o, INV OUT. 5o8.o L=45 -O', S=2.22% �collars: wet storag e: 450 .. ...... ... .. ........... .. IN. 468.57, INV OUT. L=76.o', S=0.75% wet storage required (cy) 105.2 493.1 design high water (ft) 474.60 bottom of stone weir 'storage 533 00 top of dam (ft) 476.00 wet storage provided at this elevation (cy) wet p"r-,o,\,4-d ed, at this elevation (cy),; 124.1 10.0 available volume before cleanout (cy) (34*DA) 250.2 slope of wet storage sides 2:1 cleanout elevation (ft) 470.73 approx. bottom dimensions: 70'x186' distance from cleanout to orifice (ft) (> 1') 1.0 upstream face slope: 2:1 dry storage: 45 bottom of trap elevation (ft) 531 dry storage: dry storage required (cy) (67 -DA) 1052 :bottom trap dimensions: 29x50' 493.1 crest of stone weir 535.00 top of dam elevation (ft) 536: length of flow, L (ft) 'or at this elevation"(cy) 174.9 width of dam (ft) 6 95 slooe of dry storage sides 2:1: top trap dimensions 49'x73 SEDIMENT BASIN #4 DETAIL (SCALE,."=,,') 0 0 1 #3 COARSE AGGREGA 1 E OUTLET PROTECTION W/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT. 00 (EP by 000�1 EE- RCP BARREL INV IN, 468-57 INV OUT. 468.00 . ...... L=76.0', S=0.75% -47o _----- -- ----- _ 474 476 472 j 1=1 470 r z� _SAFETY FENCE O� C � BA FLE 24" RCP RISER W 4'X4'n8" CONCRETE RISER FOUNDATION V 470 472--- rl 474 48o 478 484- ---- --7-490 496 0 . . ... .... ... Sediment Basin #4 Design SEDIMENT CLEANOUT POINT vo . STORAGE GE REDUCED 24" RCP RI ER W/ 4'X4'X18" CONCRETE 24'1 RCP RISR W/ 4'X4'x18" COCRETE RISER FOUNDATION. RIM ELEV: 473.60 525 MIN. I'M SPILLWAY 2' WITHOUT CREST OF EMERGENCY SPILLWAY drainage area (acres) 7.36 DESIGN HIGH WATER 516.00 basin volumes: (using 2' contour intervals) top width of dam (ft) '(25 -YR. STORM ELEV.) I 250.6 elevation (ft) contour area (sf) volume (cy) 510,10 approx. bottom dimensions: 470.00 8233.0 0 ------ - - ----- - 472.00 9921.0 671.4 3:1 RISER CREST 474.00 11710.0 1471.6 DWI STORAGEDMATERING . ...- . _" V, DEVICE 476.00 13599.0 2408.1 ^ WET STORAGE ........... 98 5.0 L / We (baffles not required if > 2) SENMENTCLEANOUT POINT WET . STORMUCED 7.0 15" RCP BARREL INV IN. 5og.o, INV OUT. 5o8.o L=45 -O', S=2.22% �collars: TO 34 CY./RAGEACRE) 450 wet storage: INV IN. 468.57, INV OUT. L=76.o', S=0.75% 468.o0 -1 wet storage required (cy) (67*DA) 493.1 design high water (ft) 474.60 dewatering orifice elevation (ft) 471.75 top of dam (ft) 476.00 wet storage provided at this elevation (cy) 588.0 top width of dam (ft) 10.0 available volume before cleanout (cy) (34*DA) 250.2 bottom of basin (ft) 470.0 cleanout elevation (ft) 470.73 approx. bottom dimensions: 70'x186' distance from cleanout to orifice (ft) (> 1') 1.0 upstream face slope: 2:1 N/A % 45 downstream face slope: 3:1 dry storage: crest of spillway (ft) NIA 15 dry storage required (cy) (67*DA) 493.1 baffles: YES princiiple spillway crest (ft) 473.60 length of flow, L (ft) 120 dry storage provided at this elevation (cy) 722.0 effective width, We (ft) 95 diameter of dewatering orifice (in) 6.0 L / We (baffles not required if > 2) 1.3 diameter of flexible tubing (in) (orifice+2") 8.0 u a collars: YES runoff: depth of water at spillway crest (ft) 3.60 C (use 0.45 for bare earth) 0.47 slope of upstream face (Zi) 2:1 tc (miin) 11.5 slope of barrel (Sb) 0.75 % I 2yr 4.00 Q 2yr 13.84 length of barrel in saturated zone (Ls) 22.27 1 25yir 6,60 Q 25yr 22.83 number collars required 2 dimension of collars 3.1x3.1 principle spillway: available head (ft) 2.40 emergency spillway- YES diameter riser (in) 24 required capacity (Q25-Qp) (ofs) 8.99 spillway capacity, Qp (cfs) 22.83 bottom width (ft) 40 diameter trash rack (in) 36 slope of exist channel (ft(ft) 25.0 % barrel length (ft) 76 minimun length of exit channel (ft) 35 head on barrel through embankment (ft) 6.60 crest of spillway (ft) 474.60 diameter of barrel (in) 15 F i yr ur L,P%Ivl = 4/0-u Soo SEDIMENT CLEANOUT POINT vo . STORAGE GE REDUCED 24" RCP RI ER W/ 4'X4'X18" CONCRETE 24'1 RCP RISR W/ 4'X4'x18" COCRETE RISER FOUNDATION. RIM ELEV: 473.60 525 493.8 -----OUTLET 514.00 511.25 top of dam (ft) 516.00 PROTECTION top width of dam (ft) ' �ING 250.6 bottom of basin (ft) 509.0 510,10 approx. bottom dimensions: EXIS GRADE 1.1 475 2:1 downstream face slope: 3:1 493.8 baffles: YES 513.00 length of flow, L (ft) 85 PROPOSED GRADE 98 5.0 L / We (baffles not required if > 2) 0.9 7.0 15" RCP BARREL INV IN. 5og.o, INV OUT. 5o8.o L=45 -O', S=2.22% �collars: YES 450 depth of water at spillway crest (ft) INV IN. 468.57, INV OUT. L=76.o', S=0.75% 468.o0 -1 2:1 12 438 2.22 IN 10.06 length of barrel in saturated zone (Ls) 26.34 16,77 number collars required 2 01 0 0 0 0 0 CO nl emergency spillway: NO 24 to W .6 6 Ln 00 00 M Nt 36 slope of exist channel (fVft) -0+25 0+00 0+50 2+00 3.+50 2+00 2+25 1 SEDIMENT BASIN #4 SEDIMENT BASIN #4 PROFILE (SCALE 2"=40') SEDIMENT BASIN #5 DETAIL (SCALE "=,O') A OP VDOT #3 COARSE AGGREGATE OUTLET PROT C ION W1 GEOTEXTILE FILTER FABRIC UNDERLAYMENT.' (L=6', W:1=3.75',,W2=7.25', D=2' MIN.) 0 I \\ I­yy 0 0 Cry -y - 5o8 2.5" RCP BARR L 1NV IN. 5og. NV OUT. 5o --I-=45.0', S=2. Ln +SAFE Y FENCE 1.101 24" RCP RISER W/ 4'X4'x18" CONCRETE 111=11FOUNDATION SB i Al 128' ----------------- ---- --L-509-------------------------'� 510 512 /7 Sediment Basin #5 Design drains = area (nrrac) 737 MIN, 1: W1 SPILLWAY CREST OF EMERGENCY 2 WITHOUT SPILLWAY DESIGN HIGH WATER basin volumes:�using 2 contour Intervals}25-YR STORM ELEy. elevation (ft) contour area (sf) volume (cy) 509.00 5623.0 0 IAN, 1.0, 510.00 6274.0 920,2 SER CREW (Aly, STORAGE ...... DEWA7MNO 512.00 7652.0 735.1 ..... . ....... UMCE 514.00 9130.0 1355.9 WE7 STORAGE 516.00 10710.0 2089.9 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+Z') runoff: C (use 0.45 for bare earth) to (min) I 2yr 190 Q 2yr I 25yr 6.50 Q 25yr principle spilt gym available head (ft) diameter riser (in) spillway capacity, Qp (efs) diameter trash rack (in) barrel length (ft) head on barrel through embankment (ft) diameter of barrel (in) SEDIMENT CLEANOUT POINT vo . STORAGE GE REDUCED 24" RCP RI ER W/ 4'X4'X18" CONCRETE TO 34 CY,/ ACRE) 525 493.8 design high water (ft) 514.00 511.25 top of dam (ft) 516.00 530.1 top width of dam (ft) 10.0 250.6 bottom of basin (ft) 509.0 510,10 approx. bottom dimensions: 52'x128' 1.1 tl 2:1 downstream face slope: 3:1 493.8 baffles: YES 513.00 length of flow, L (ft) 85 514.9 effective width, We (ft) 98 MIN, 1: W1 SPILLWAY CREST OF EMERGENCY 2 WITHOUT SPILLWAY DESIGN HIGH WATER basin volumes:�using 2 contour Intervals}25-YR STORM ELEy. elevation (ft) contour area (sf) volume (cy) 509.00 5623.0 0 IAN, 1.0, 510.00 6274.0 920,2 SER CREW (Aly, STORAGE ...... DEWA7MNO 512.00 7652.0 735.1 ..... . ....... UMCE 514.00 9130.0 1355.9 WE7 STORAGE 516.00 10710.0 2089.9 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+Z') runoff: C (use 0.45 for bare earth) to (min) I 2yr 190 Q 2yr I 25yr 6.50 Q 25yr principle spilt gym available head (ft) diameter riser (in) spillway capacity, Qp (efs) diameter trash rack (in) barrel length (ft) head on barrel through embankment (ft) diameter of barrel (in) UUILEI PROTECTION 7 TOP OF DAM = 484.0 SEDIMENT CLEANOUT POINT vo . STORAGE GE REDUCED 24" RCP RI ER W/ 4'X4'X18" CONCRETE TO 34 CY,/ ACRE) 525 493.8 design high water (ft) 514.00 511.25 top of dam (ft) 516.00 530.1 top width of dam (ft) 10.0 250.6 bottom of basin (ft) 509.0 510,10 approx. bottom dimensions: 52'x128' 1.1 upstream face slope: 2:1 downstream face slope: 3:1 493.8 baffles: YES 513.00 length of flow, L (ft) 85 514.9 effective width, We (ft) 98 5.0 L / We (baffles not required if > 2) 0.9 7.0 INV IN. 5og.o, INV OUT. 5o8.o L=45 -O', S=2.22% �collars: YES depth of water at spillway crest (ft) 4.00 0.35 slope of upstream face (Zl) 2:1 12 slope of barrel (Sb) 2.22 IN 10.06 length of barrel in saturated zone (Ls) 26.34 16,77 number collars required 2 01 dimension of collars 3.3'x3.3' 3.00 emergency spillway: NO 24 required capacity (025-Qp) (cfs) N/A 16.77 bottom width (ft) N/A 36 slope of exist channel (fVft) N/A % 45 minimun length of exit channel (ft) NIA 6.00 crest of spillway (ft) NIA 15 Uj (n C) U 0� LLJ UUILEI PROTECTION 7 TOP OF DAM = 484.0 -0+25 0+00 0+50 1+00 SEDIMENT BASIN #5 PROFILE (SCALE 1"=40') 1+50 2+00 2+25 SCOTT r R COLLINS CD No. 35791 _Ial Z 0 24" RCP RI ER W/ 4'X4'X18" CONCRETE 525 ISER FOUNDATION, RIM ELEV: 513.0 In 1-i 4' rM %0 to to 'q to i1 'q ko O tin Uj ce EXISTING GRADE 500 BASIN FLOOR=Sog.o' i LGRADE 488 to -1 - L 15" CP BARREL PROPOSED INV IN. 5og.o, INV OUT. 5o8.o L=45 -O', S=2.22% LLJ 21 LLJ Z 0 < P Z LU X rL P 0 -41 C4 0 co 00 Nt rl-� r! F, Cn It U 2: 0 '6 1H 0 rZ In Ln In 01 -0+25 0+00 0+50 1+00 SEDIMENT BASIN #5 PROFILE (SCALE 1"=40') 1+50 2+00 2+25 SCOTT r R COLLINS CD No. 35791 _Ial L9 Uj Z CY) CO CY) CV r) 'Tt I CY) Z It I- (,/) N = IN I Z W C\j O. M C) r L - C\j < LU " Q. I < Z> Lij _j > U > co L9) I V) LLJ < 0 Lij > Z cc < LJL W 0 0_110 LIJ W Uj Z 0 (D�. LU ce Z LLJ LU W U) Z UJI LU 06cr_ij 'j rr G < 0 C) o C:) LLJ ui _j LLJ ul JOB NO. 142098 SCALE AS SHOWN SHEET NO. 15 Z 0 uj In 1-i 4' rM %0 to to 'q to i1 'q ko O tin Uj ce to to -1 U r uj LLJ 21 LLJ Z 0 < P Z LU X rL P U F U 2: z LU 2: 0U Z LU 2: a Z 0< t" (ri _j U � Z a2 U Z U 2 C L > Uj Q! U LLJ =' 8 Uj (n C) U 0� LLJ IIJ 0- a Uj C L C U all Cie C-1 UjU V) U j Ce u a L9 Uj Z CY) CO CY) CV r) 'Tt I CY) Z It I- (,/) N = IN I Z W C\j O. M C) r L - C\j < LU " Q. I < Z> Lij _j > U > co L9) I V) LLJ < 0 Lij > Z cc < LJL W 0 0_110 LIJ W Uj Z 0 (D�. LU ce Z LLJ LU W U) Z UJI LU 06cr_ij 'j rr G < 0 C) o C:) LLJ ui _j LLJ ul JOB NO. 142098 SCALE AS SHOWN SHEET NO. 15 uj In 1-i 4' rM %0 to to 'q to i1 'q ko O tin L9 Uj Z CY) CO CY) CV r) 'Tt I CY) Z It I- (,/) N = IN I Z W C\j O. M C) r L - C\j < LU " Q. I < Z> Lij _j > U > co L9) I V) LLJ < 0 Lij > Z cc < LJL W 0 0_110 LIJ W Uj Z 0 (D�. LU ce Z LLJ LU W U) Z UJI LU 06cr_ij 'j rr G < 0 C) o C:) LLJ ui _j LLJ ul JOB NO. 142098 SCALE AS SHOWN SHEET NO. 15 Z /< \< KX I -p I N� k, -0 kll� ­ 1AA­ i 1_�irNxl A� i ; -1 t S r� M V! r\; 1 C- �1 � A _r _,kic, ANIn no t- A n - INUI r_r�ut�=u vvilm MID DrESIGINIFED WHEN 11 1 UD UU0 lnt-�J kJ 01 1,)1-11\J1N0 t-\1NL,1/',A\ U /-\Lt- 1. u D I OBSTIRI "' R _.� DIFFERENCES EXIST THAT MAY NOT HAVE BEEN KNOWN DURING DESIGN. SUCH CONDITIONS SHALL IMMEDIATELY BE L p Tr"\ THE AT A OFSPONSIBIl IT'v FOR ROUGHT U ITENTION OF THE LANDSCAPE ARCHITECT. THE CONTRACTOR ASSUMFq COMPLETE ALL NECESSARY REVISIONS DUE TO FAILURE TO GIVE SUCH NOTIFICATION, 2. ALL PLANT MATERIAL SHALL BE APPROVED BY THE LANDSCAPE ARCHITECT PRIOR TO ITS ARRIVAL ON SITE. SEE SPECS. 3. ALL AREAS WITHIN THE PROjECT LIMITS OR DISTURBED BY CONSTRUCTION OPERATIONS AND NOT OTHERWISE SPECIFIED SHALL BE SEEDED PER SPECIFICATIONS. Landscape Notes TOR TO USE EXTRFMF CARF AND CAUTION AS NOT TO DAMAGE ANY TREES SCHEDULED TO REMAIN OUTSIDE LIMITS 1� CONTRAC 0 CONSTRI��`��" I tDISTURBANCE /k.N[) TREE FENCING S'ERVE Ac ""I'S OF CONS71 J I u I U N. N 1. �vk_, 1 !QN� L11V11 1 --D UF -) 1 _-D 1 (j. . L.; A u 1 N �­ HN Ij L_ V /-A �) U IVI 1 1 0 1_,� I I, �_j 2. NO CONSTRUCTION EQUIPMENT OR STORAGE SHALL OCCUR WITHIN DRIPLINE OF EXISTING TREES. PRIOR TO MOBILIZATION CONTRACTOR SHALL CONTACT LANDSCAPE ARCHITECT (LA) TO DISCUSS TREE PROTECTION EFFORTS. ALL TREE PROTECTION S-TRUCTION ACTIVITIES SHALL TAKE PLACE MEASURES SHALL BE APPROVED BY LA AND/OR TREE ARBORIST BEFORE ANY CON3 0 -SITE. CONTRACTOR TO MONITOR TREES FOR STRESS AND/OR DAMAGE AND ADVISE LA AND TREE ARBORIST IF ANY OCCUR N -0. 3. CONTRACTOR TO NOTIFY LANDSCAPE ARCHITECT AND/OR TREE ARBORIST 48 -HOURS IN ADVANCE OF ANY CONSTRUCTION ACTIVITY NEEDED WITHIN ANY TREE PROTECTION MEASURE, ALL TREE PROTECTION MEASURES SHALL BE REPLACED IN ORIGINAL LOCATION ONCE WORK HAS BEEN COMPLETED. NO WORK SHALL BE DONE WITHIN DRIPLINE OF EXISTING TREES UNLESS APPROVED BY TREE ARBORIST OR LANDSCAPE ARCHITECT PRIOR TO WORK. '41- �,, ""ki, , "'r �, �, , �� " I x V 4. ALL WORK TO BE PERFORMED BY THE CONTRACTOR WITHIN THE DRIPLINE OF ANY EXISTING TREE OR TREE PROTECTION AREA SHALL BE DONE IN A MANNER SENSITIVE TO ENSURING NO DAMAGE WILL BE DONE TO THE EXISTING TREES. THE PREFERRED A", ""k METHOD FOR GRADING SMALL AREAS WITHIN THE DRIPLINE SHALL BE DONE BY HAND. LARGER AREAS TO BE GRADED MAY BE DONE WITH A SMALL BOBCAT/TRACT-HOE. CONTRACTOR TO DISCUSS METHODS OF GRADING WORK WITH LANDSCAPE Z' L 4(o ARCHITECT AND TREE ARBORIST PRIOR TO COMMENCING ANY SUCH WORK WITHIN DESIGNATED TREE PROTECTION AREAS OR A, x, WITHIN EXISTING DRIPLINES. LEcTRIt EASEMENT (TYP.) N, 5. ALL PLANTS HAVING A QUANTITY GREATER THAN ONE (1) SHALL BE MATCHED AND SUPPLIED FROM THE SAME SOURCE (PER 'v, .......... SPECIES). I WPO /3.00, f 4< I UFFER 21 \_,\ -,\" �"., . J, I I I [ j ( STREAM B "'Q / I I x 6. CONTACT LANDSCAPE ARCHITECT AT THE TIME OF PLANT MATERIAL DELIVERY, BEFORE ANY SUBSTITUTIONS OR CHANCES, IF SCHEDULED TYPES ARE UNAVAILABLE, AND FOLLOWING INSTALLATION. ALL PLANT SUBSTITUTIONS SHALL BE APPROVED BY THE 432SF OF PROPOSED LANDSCAPE ARCHITECT PRIOR TO PLACEMENT OF ORDERS. 4 v T RBED ARE I THIN v ISIUR ED EAWI V" / / THE iodWP0 STREAM BUFFER., '�'P`ROPOSE'D'MITIGATIONI 'N" 1"1 7. LANDSCAPE ARCHITECT SHALL INSPECT AND APPROVE ALL PLANT MATERIAL AT TIME OF DELIVERY AS WELL AS AFTER INITIAL AREA #5,'17,137 SF PLACEMENT PRIOR TO PLANTING. CONTRACTOR TO NOTIFY LANDSCAPE ARCHITECT 48 -HOURS PRIOR TO DELIVERY. 4 8. PLANT LOCATIONS TO BE REEVALUATED AND REVISED, IF NECESSARY, AFTER FINISHED GRADING. v "j 9. MULCH IN PLANTERS AND PLANTING BEDS TO BE CLEAN AND FREE FROM PEST AND DISEASES. MULCH SHALL BE APPLIED TO A 2 -INCH DEPTH. MULCH RINGS 24 -INCHES MIN. IN DIAMETER ARE TO BE PLACED AROUND ALL TREES NOT LOCATED IN j, X ". , " \ -SHREDDED HARDWOOD. jEXISTING STREAM /",. I "', ', " " \ " , �, ", "." , 11 � /. - / PLANTING BEDS. MULCH TO BE DOUBLE Ma, EXISTING i2o'VEPCO UTILITY EASEMENT. X REA CURRENTLY CLEARED, NO NEW PLANTINGS 10.CONTRACTOR TO VERIFY ALL QUANTITIES BETWEEN PLAN AND PLANT LIST AND REPORT ANY DISCREPANCIES TO THE Jf SHALL TAKE PLACE WITHIN THE EXISTING EASEMENT. LANDSCAPE ARCHITECT IMMEDIATELY PRIOR TO ORDERING. V IT, v� 11.ALL STREET TREES WITHIN THE PUBLIC RIGHT OF WAY SHALL BE MAINTAINED BY THE HOMEOWNERS ASSOCIATION. A, '67 5 SF OF PROPOSED K "n IS I URBED AREA WITHIN E iodWP0 STREAM BUFFER 7 \A v x ---- ------ ........ .. ..... x Z mz,� Z I 135,277bt-OF PROPOSED Z. k/1, v k ISTURBED AREA WITHIN X.') I III: ioo' WPO STREAM BUFFER v, Z 'Z y L g';, fln� 0_1 'A EXISTING TREELINE cryp.) _4 � I Z /� L 4 q, ... N, y AREA #4: 9,675 SF " x P 40POStD MIfIGATI11 N ­ k 7- Z-gg ... ..... .. EXISTING MANAGED g �7_ V 100'WPO 4V SLOPES (I /STREAM BUFFER - t EXISTING CRITICAL SLOPES Cryp PROPERTY LINE (TYP 21 V- 841 SF OF PROPOSED 0 IST URBEDAREAWITHIN THE 2oo'WPO STREAM BUFFER -PROPOSED MITIGATION— - #3' 8,258 SF g 0_ PRESERVED EXISTING REELINE P. ,,Q (TY T -STEEP� SLOPES (TTr,; x, 91v x , X ..... . ............ "j . - --- ------ - v 6 4,507 SF�Of PIR POSED �2 DISTURBED AREA WITHIN '15 t:Ah E 0? 77 ­ THE 2.00'WPO STR; AM BUFFER ING STIR f tW 07- @ ,a 100, WPI Z, TREAMI BU X IFFER�' E TING ioo-YR XIS' FLOOPPLAIN g, 4 M xg - t f \7 g& W7,Z 4, " - 7 PROPOSED MITIGAI ION Z__ m AREA #2: i6,oic 1`1 % f N K,Z-0 Ry NA '�A k 09, M1111�1� R -PROPOSED MITIGATION AREA #1: 37,104 S Xx 0,, �4 < MITIGATION NOTES: 1. THERE IS A ioo'WPO STREAM BUFFER ON THIS SITE, AS SHOWN ON THE PLANS. 2. ALL PROPOSED DISTURBED AREAS WITHIN THE loo'WPO STREAM BUFFER, BUT NOT WITHIN THE EXISTING 120'VEPCO EASEMENT, SHALL PROVIDE TWICE AS MUCH AREA FOR MITIGATION. AAI�!� A�. A -rFr% MN/ & A 1'. 1 K 1-rr- N I A A -1 M I _r r1I mtj I _010E "REE"ENTS.r BE E E -1 1 E BY 3. REDA S e -I 1 A LL BE rr`R`TEzC_ 1 u 0 1 ivit,\ Im I C"t llq�_ rAu UL -M 114 1 -D I k_� UL_ I L/ U I THE OWNER PRIOR TO PLANTINGS. 4, ALL MITIGATION PLANTINGS SHALL COMPLY WITH THE RIPARIAN BUFFERS GUIDANCE MANUAL BY CBLAD. S. DCR's RIPARIAN BUFFERS MODIFICATION & MITIGATION GUIDANCE MANUAL DEFINES A CANOPY TREE AS A TREE THAT REACHES 35'IN HEIGHT OR LARGER WHEN MATURE. THE MANUAL DEFINES AN UNDERSTORY TREE AS A TREE THAT MATURES TO A HEIGHT OF 12'TO 35'. A LARGE SHRUB IS DEFINED AS A SHRUB THAT REACHES 1 o'OF HEIGHT OR GREAT FRALT MATURITY, AND A SMALL SHRUB IS DEFINED AS A WOODY PLANT THAT CAN REACH UP TO io' OF HEIGHT AT MATURITY. WINTERGREEN FARM MITIGATION APPROVED PLANT LIST SYM BOTANICAL COMMON NAME SIZE CANOPY TREES AR ACER RUBRUM RED MAPLE 11/2" - 2" ca I. MA MAGNOLIA GRAN DI FLORA SOUTHERN MAGNOLIA 11/2" - 2" ca I. QC QUERCUSCOCCINEA SCARLET OAK 11/2" - 2" cal. TD TAXODIUM DISTICHUM BALD CYPRESS 11/2" - 2" cal. UP ULMUS PARVIFOLIA'ALLEE' ALLEE ELM 11112" - 2" ca I. UNDIERSTORY TREES AG AMALANCHIER x GRANDIFLORA SERVICEBERRY 3/4" - 11/2" cal. CC CERCIS CANADENSIS REDBUD 3/4" - 11/2" cal. CIF CORNUS FLORIDA DOGWOOD 3/4" - 11/2" cal. L1 LAGERSTROEMIA INDICA CREPEMYRTLE 13/4" - 11/2" ca I. MV MAGNOLIA VIRGIN IANA SWEET BAY MAGNOLIA 13/4" - 1112" cal. EVERGREEN TREES CD CEDRUS DEODARA DEODAR CEDAR 4'-6'ht. IN ILEX x'NELLIE R STEVENS' NELLIE STEVENS HOLLY 4'-6'ht. JV JUNIPERUSVIRGINIANA EASTERN RED CEDAR 4'-61 ht. MU IMAGNOLIA GRAND I FLO RA'LITTLE GEM' LITTLE GEM MAGNOLIA 4'-61 ht. TG JTSUGA 'GREEN GIANT' GREEN GIANT ARBORVITAE 4'-6'ht. LARGE SHRUBS AS ALNUS SERRU LATA HAZEL ALDER SHRUB T-41 ht, Km RHODODENDRON MAXIMUM GREAT RHODODENDRON SHRUB T-41 ht. SIR SAMBUCUS RACEMOSA RED ELDERBERRY SHRUB 3'-41 ht, VP jVIBURNUMPRUNIFOLIUM IBLACK-HAW VIBURNUM SHRUB 18'-4' ht. SMALLSHRUBS HA HYDRANGEA ARBORESCENS WILD HYDRANGEA SHRUB 15"-1811 ht. RIP RHODODENDRON PRINOPHYLLUM ROSE AZALEA SHRUB 15"48" hL. VN VIBURNUM NUDUM POSSU M -HAW VI BU RN U M SHRU B 15"48" ht. GROUNDCOVER AA APIOS AMERICANA GROUNDINUTVINE 15"-18" ht. JT JUNCUSTENIUS SLENDER RUSH 1511-i8l' ht. XS XANTHORHIZA SIMPLICISSIMA YELLOW ROOT SHRUB 15"-1811 ht. PROPOSED IMPACTED AREA: 43,731 SQ. FT. OF STREAM BUFFER IS PROPOSED TO BE IMPACTED REQUIRED MITIGATION: 87,462 SQ. FT. = 2.oi. ac. PROVIDED MITIGATION: 88,193 SQ. FT. = 2.02 ac. PLANTING REQUIREMENT FOR EVERY 400 sf (OR 20'X20'SECTION) SHALL CONTAIN THE FOLLOWING: THE WATERSIDE 50% OF THE BUFFER: ONE (1) 121" - 2" CALIPER CANOPY TREE OR LARGE EVERGREEN AT 6' TWO (2) CALIPER UNDERSTORY TREES OR EVERGREENS AT 4' OR 4 ONE (i) UNDERSTORY TREE AND TWO (2) LARGE SHRUBS AT 3'7 THREE (3) SMALL SHRUBS OR WOODY GROUNDCOVER AT 15"-18" THE LANDWARD So% OF THE BUFFER: BARE ROOT SEEDLINGS OR WHIPS AT 2,220 STEMS/ACRE, APPROXIMATELY 6'O.C. (600 MINIMUM PLANT SURVIVAL REQUIRED AFTER TWO GROWING SEASONS) OR CONTAINER GROWN SEEDLING TUBES AT 700 PER ACRE, APPROXIMATELY 8'O.C. (490 MINIMUM PLANT SURVIVAL REQUIRED AFTER TWO GROWING SEASONS) THE REQUIREMENTS ABOVE EQUATE TO THE FOLLOWING: MITIGATIaNIAR&A #i: WATERSIDE So% OF BUFFER (38) 1.121'- 2" CALIPER CANOPY TREES OR LARGE EVERGREENS AT 6 (75) -1"- i�," CALIPER UNDERSTORY TREES OR EVERGREENS AT 4' OR 4 (38) UNDERSTORY TREES AND (75) LARGE SHRUBS AT 3'-4' (113) SMALL SHRUBS OR WOODY GROUNDCOVER AT 15"-18" LANDWARD 5o% OF BUFFER (35S) CONTAINER GROWN SEEDLING TUBES APPROXIMATELY 8' O.C. MITIGATION AREA #2: WATERSIDE 50% OF BUFFER (n) i-' " - 2" CALIPER CANOPY TREES OR LARGE EVERGREENS AT 6 (22) -�`- CALIPER UNDERSTORY TREES OR EVERGREENS AT 4' OR 4 (n) UNDERSTORY TREES AND (22) LARGE SHRUBS AT 3'-4' (33) SMALL SHRUBS OR WOODY GROUNDCOVERATiS"-i8" LANDWARD 50% OF BUFFER (3.88) CONTAINER GROWN SEEDLING TUBES APPROXIMATELY 8'O.C. MITIGATION AREA #3: WATERSIDE 50% OF BUFFER (18) 1j" - 2" CALIPER CANOPY TREES OR LARGE EVERGREENS AT 6 (36) CALIPER UNDERSTORY TREES OR EVERGREENS AT 4' OR (18) UNDERSTORY TREES AND (36) LARGE SHRUBS AT 3'-4' (54) SMALL SHRUBS OR WOODY GROUNDCOVER AT 15"-18" LANDWARD 5o% OF BUFFER (16) CONTAINER GROWN SEEDLING TUBES APPROXIMATELY 8'O.C. MITIGATIONAREA #4: WATERSIDE 50% OF BUFFER (18) a�f - 2" CALIPER CANOPY TREES OR LARGE EVERGREENS AT 6 (36) 4 a" - iT' CALIPER UNDERSTORY TREES OR EVERGREENS AT 4' OR (18) UNDERSTORY TREES AND (36) LARGE SHRUBS AT 3'-4' (54) SMALL SHRUBS OR WOODY GROUNDCOVER AT 3.5"-18" LANDWARD So% OF BUFFER (40) CONTAINER GROWN SEEDLING TUBES APPROXIMATELY 8'0.C, MMIGA TION AREA #5., WATERSIDE So% OF BUFFER (30) 1-' " - 2" CALIPER CANOPY TREES OR LARGE EVERGREENS AT 6 (6o) 2"- il" CALIPER UNDERSTORY TREES OR EVERGREENS AT 4' OR 1 (30) UNDERSTORY TREES AND (6o) LARGE SHRUBS AT 3'-4' (89) SMALL SHRUBS OR WOODY GROUNDCOVER AT 3.5"-18" LANDWARD 5o% OF BUFFER (86) CONTAINER GROWN SEEDLING TUBES APPROXIMATELY 8'O.C. 0. '0 N ­ 'R 01 >ry- 011;�,_J�!�Fl A x A ISTING TRtIELIKt (TYP.),:�' IT, _1 N 1, f I i j , �' �,,gfow)XIX \ , \ \ t Z ST "P.), lo 1 1 MfS OF DI URBANCE , llm, Rg Z zg, 17 X 1 LIMITS OF DISTURBANCE CrYP.) , NIP J/ z @ 4/ IN'S I a xk_ ISTING SfPt��/ 4,0, UK �;A (vE, No"' A z ,E5(ISTINdCRITICALISLOPES(TYP.) a", 2 M -Imm gum [STING STREAM tjO 1 1 C SCAL� �g sa, N 100 200 /40 -M, 10 f 01 it �M EXISTING CRIT OPES (rYP.)- —77 -7 N" 10 N ICAL SL" W, m N P Y � I ( IN FEET 4", 1 7m, V jk gl IN 49 1 inch 100 ft. /Z W & '01 va 41 x,� 00 0: L g gg 0-W �M7 g N�N A"R "z OR 5 DP 7 - 'RE, -g �,Z '�,ggr -p. I dggM ;W ."A W-0 p x g /,,w EXIST 'g, WATI J 6 V -"v /g, �S, x a 7 TH 0) SCOT I' /Pt ("OLLINS �7_ No� 35791 I�Ll z 0 u to uj 0 z 0 R U) z 0 LU NOTES: 1. SET TREE PLUMB PRIOR TO STAKING. uj 2. XLL PRUNING IS RESTRICTED TO THE REMOVAL OF DEAD AAD BROKEN BRANCHES AND SHALL BE PERFORMED UNDER BACKFILL TO TERMINATE---\ AT TOP OUTSIDE LIMITS OF THE SUPERVISION OF THE LANDSCAPE ARCHITECT, ROOTBALL -d REFER TO TREE C� 3. D)O NOT ALLOW AIR POCKETS TO FORM WHILE BACKFILLING. ADDMULCH OVERTOP OF uj STAKING DETAIL z 0 _j 4, IMMEDIATELY SOAK PLANT WITH WATER. ROOTBALL AND PLANTING PIT LIMITS, BEGINNING AT NO MORE Lu :3 z UJ 0 5. SEE IRRIGATION PLANS/ DETAILS/ SPECIFICATIONS AS THEY THAN 1" DEPTH AT TRUNK AND TAPERING UP TO A DEPTH OF a Z 0 t-4 V) _j u r Z uj *-.4 2j, RELATE TO THIS INSTALLATION. 3" AT PLANTING PIT LIMITS, U) �_4 > Lu z 8 Q� Z THEN TAPER TO PROPOSED UJ 0. uj D 8 0� uj CL 0 Lu FINISHED GRADE u') ul m Lu U) > VARIS TYP TREE GUYING DETAIL CONSISTS OF 2 GUYS,SET 120' AROUND PLANT PIT ON "UPHILL" SIDE SPECIMEN SHRUB (AS SPECIFIED ON _7 DRAWINGS) TRENCH EDGE AROUND ENTIRE AREA TO BE REFER TO TREE MULCHED nu�.j I BnLL REFER TO TREE STAKING DETAIL STAKING DETAIL i COMPACT EXCAVATED SOIL CUT AWAY ALL WIRE BASKETS AND/OR NON -BIODEGRADABLE INN' WITH CULTIVATED, ORI-GINA-L SOIL' FROM 'PLANT TO FORM ROOTBALL PIT PIT EXCAVATION IF LOOSE. IF TRENCH EDGE AROUND ON DOWNHILL SIDE OF TREE 4" ROOTBALL WRAPPING AFTER FINAL TREE PLACEMENT. EXCAVATED MATERIAL IS NOT LOOSE, SUBSTITUTE WITH ENTIRE AREA TO BE MULCHED MIN. BURLAP ROOTBALL WRAPPING ACCEPTABLE TOPSOIL TRENCH EDGE AROUND ENTIRE AREA TO BE TO BE UNTIED FROM TRUNK AND CUT AWAY TO A POINT AT LEAST 1/2 DISTANCE DOWN MATERIAL. AMEND BACKFILL PER SPECIFICATIONS. COMPACT REFER TO ROOTBALL PIT DETAIL MULCHED ROOTBALL. BACKPILL IN LIFTS BY FOOT. WATER THROUGHLY AT 1/2 DEPTH. REFER TO ROOTBALL PIT mv DETAIL FOOTBALL SCARIFY BASE OF PLANT PIT WHEN EXCAVATING PIT: BREAK RETURN AND COMPACT LOOSE H00 rB )rB LL ROO I Bf1,LL 1111111111011 E M, THROUGH AND LOOSEN ALL HARDPAN (REMOVE A$ NECESSARY TO FACILITATE EXCAVATED MATERIAL TO PLANT PIT TO ESTABLISHED INN DRAINAGE) PROPER DEPTH PRIOR TO PLANT PLACEMENT WIN N N NOTES: 1, NOTIFY LANDSCAPE ARCHITECT OF ANY SITUATION WHERE SOIL CHARACTERISTICS ARE NOT REFER TO ROOTBALL PIT AGREEABLE TO. THESE PLANTING CRITERIA,OR -WHERE. CONDITIONS -RAISE CONCERNS -IN NOTES: NOTES: DETAIL TERMS OF PLANT SURVIVABILITY OR WARRANTY. 1. SET TREE PLUMB PRIOR TO STAKING. 1. SET TREE PLUMB PRIOR TO STAKING 2, CONTRACTOR TO NOTIFY LANDSCAPE ARCHITECT OF ANY PLANT DAMAGE EXPOSED BY, ALL PRUNING IS RESTRICTED TO THE REMOVAL OF DEAD AND BROKEN BRANCHES AND 2. ALL PRUNING IS RESTRICTED TO THE REMOVAL OF DEAD AND BROKEN BRANCHES AND OR INCURRED DURING, PLANTING PROCESS. 2,SHALL BE PERFORMED UNDER THE SUPERVISION OF THE LANDSCAPE ARCHITECT, SHALL BE PERFORMED UNDER THE SUPERVISION OF THE LANDSCAPE ARCHITECT TREE PLANTING LD -004 TREE PLANTING ON SLOPE W-006 r3 LD -007 SHRUB PLANTING r4 ROOTBALL PIT LD -001 SECTION N.T.S. SECTION NJ.& Q12� SECTION N,T.S. SECTION N.T.S. TH 0) SCOT I' /Pt ("OLLINS �7_ No� 35791 I�Ll z 0 u to uj 0 z 0 R U) z 0 LU uj ce in C� Lu uj Cn z 0 _j Lu Lu :3 z UJ 0 0 Z LLJ a Z 0 t-4 V) _j u r Z uj *-.4 2j, 0 u �: Z U) �_4 > Lu z 8 Q� Z UJ 0. uj D 8 0� uj CL 0 Lu u') ul m Lu U) > uj Lr' 10 10 10 ID 10 LU 1-4 r4 V-1 V-1 " ;� Lu z CY) CY) m C\1 Tt (y) w C\j w C\j C\j Z Ld U) UJI Lu F_ F_ 0 z_j CC M W c) LLJ F_ ul D W w uj F_ W F_ F_ Lu cc LL 0 00 0 CL CL z _j r) z 0 < 0 > LmL 3 Lu Lu 0 uj U z :1 -J, b tu- uj M JOB NO. 142098 SCALE 1 -100, SHEET NO. 16