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HomeMy WebLinkAboutWPO200400011 Plan - Stormwater Amendment Stormwater Management Plan 2006-12-18S06'35' 2" 40.00' 6.07' N 75'42' 28.14 FA �• , C58 )rl 2o 6 7 4 L= 251.80 C4 ��� ,�-�' nik / 1 e =/ o ' �� ,i G1� - 227. �'� G 2540 ti TM 78-Par.11 Hurt Investment Co. DB 1964-184 DB 1965-37 Use: Hotel Zoned: HC-EC TM 78-Par.12 North Pantops Townhouses LLC. DB 2102-281 DB 2102-271 DB 2088-461 Use: Vacant Zoned: R-6 r `r s4'q 32'14 "l+ TM 78A 001 304. 73 1 �; "1.13' Ashcroft r` F SW OF CINE 13Z r, 34 DB 693-780 r C-0Use: Residentail N44 4317 I >00 308.66' Zoned: PRD ASE - - - S44°43'17" DB 867-335MENT S4027'35„F W 20.73' LO------------- co�` ^`� ; 100' Ingress & Egress Oo Lq Easement 08 15900 N -94 N 00 J N r J III Jco / „ 00 �� -' "' / ; N55'23 23 W 299.73' z L0Co o CD c' 4OZ'06„ -�QZ9' �, ��" I �/ I h 5 52'S4,rE 39 O3 GG�O , �b��- i S49°14'46"E IF TM 78-Par.55A6 Westminster Canterbury Of The Blue Ridge Use: Residential Zoned: PRD DB 1594-87 `+ 553.55 0 G`°O IF / N6151.26' TM 78-Par.55D2 C17 L'33 �.� j Central Telephone Company of 18 C-16.8I, Virginia, Inc. 19C_3j21 sue. S°9� " W S57°02'06"E I Use: Communication Facility z �, Ln �, ,, 6 Zoned: R-6 Lc 95' 1 �o�p� o �, s- i ,d'��F IF\ 134.90' N �F DB 1528-718 Gz �� �� O�� o t,+ 11 o N TM 78-Par.12A „ , �9 �` �' =78.00 N47°14 51 W Montessori Community School E=80.19 �20 � 5� �� o � �, •o � ,�, DB 2943-364 C22 73.15 C21 �50 0 .� o. �, ', r� it �jS DB2941-185 �' .`L �- 9 �" , DB 2482-343 ,.,y TM 78-Par.55A4 Zoned: CO Exist';FI� ,,� 65' S52°51'48"E C31 North Pantovs Townhouses, LLC 0 1+ �� TM 78-Par.55A 26 R6 Zoning DB 2088-461 o o� Existing \ _ g District Use: Vacant + �`b Westminster Canterbury 20' Water \\ \\ o, o R15 Zoning District Zone-Zc-R-6---------_ �__ �� Of The Blue Ridge Easement 1 \ f'< N12'33 0 E o-_�,___,�,`a Ni S51'26'31 E_ CD LOT C S51'18 38 1`02 �- d°' DB 1502-503 140.26 121,057 SF 139.73' ;-. Use: Residentail 1 N47°35'15"E + '`,. \\ G" '�' , o t � % Zoned: PRD 41.34 \ J -) LOT B o S51'26 31' E o 1 1 Existing 20' .Water \� '\� TM 78-Par.12B M 0 175.37 w 3-D Pantos LLC w °' 13,204 SP �(; z 1 0 Easement i <::,:,:::.,> �, - P ' �, cn 1 i _ c DB 2801-57 �, 140.39 PM 78-Par.55D + Ln i 4 TM 78-Par.55A2 a,DB 2941-185 �, �� 1.752 Acres ,Y, 20.10 Nigel Bray 1 , i Corven &° Kathy Flynn N54°26'27"E ! i <: Existing _ DB 1515-677 i "' ' ` DB 1791-274 w :; 20 Sewer Easement z Ln Use: Vacant + o N47°3515 E ! = i LOT A r 21.81 + , Use: Restaurant t 33.96'— C',--__-DB 1815-709 0 17,933 SF OO Zoned: C-1 S58°29'36"W 1, > ► o New 20' Water -- _____— _- -v _ ► Zoned. HC-EC Easement i o ... IF ........._........__.____ __- .............. W.:_ �......... ..........-........ VDOT MON_..._.203.65 - _'h -+- 110.61' #b1'`2 - ---------------- - - ; LINE .6 N47"42 5 W-- - 150.08' N49°31'54"W �N47°17'21" V 148,99' S49°30'54"W 65.65' Route 250 C27 N49°31'54"W Total 100.00' .S46°11'42"E 265.31' Richmond Road L=51.74 (Total 86.111) Centel D13 1136Se613nt ( ) 18.84' 6.81' q N49°46'27"E N3752'17" too 0 100 20o son Var' bl R 1p0. W now za e �yY SCALE:1 = 100' 1 APPROVED by the Alb n-i,,rle County Community Dev lopment Department-- Date _� 7 z v v He .storm A,,,%rzYNJ ,%4er\-t DRAWING INDEX S1 of 9 SITE OVERVIEW S2 of 9 PRE—DEV DRAINAGE AREAS S3 of 9 PRE—DEV LAND USE S4 of 9 POST—DEV DRAINAGE AREAS S5 of 9 POST—DEV LAND USE S6 of 9 SWM#3 DETAIL S7 of 9 SWM#2 DETAIL S8 of 9 SWM#1 DETAIL S9 of ,9 DETAILS VICINITY I V In1 SCALE: 1" = 2000' pNNci�} U� -� LL °'mm N 4-1 LN L [� C Q =O — U o o '' L 4a atc &a-y,0 q F�t1.LCff 04'L TIM NY FLAY MILLER � 0402 030542 ty /2� 61, G� Revisions: NO. DESCRIPTION I DATE -n n 0 I � 00 O � 0 z o z a) LL_ �- a� 0 ci W I--1 O m � F- T M -0 Q) WU 0� 0 � 0 L Q o U a� O 0 c0 0 C0i o 0 0 .cd O (D ;::J O a) O cd O � � E­1 N W O • U1 O cd 00,1110 � P X\ �N�N \ DRIVE 01 �1 M �"Jr &"A!go 1 v�j7i7f� va" U 0 DB 1964-184 -87 Use: HoteJr DO I R GXiSt, p d #2 e f. 'a I TX 78— r.0aas 'antofJ wnhoases, LLC a8 088-461 .n/VI US, 250 m TdT 78 4g st intisteT entiat Zane RD B 1 9 -87 it '001, zoned Ty 78-Pa .55A omen & Ka y Flynn DB 1791 274 U Rest ant oned.. -EC 11 Qolp �J o ao /2J 1ti� r Q 700 1 —, cc C) W t� _ a3 z 675 Q U a.) o 600 EX e tS] Q T m r� o v CD V] LC7 Q l� Q to g Q O 0 Q t] vv � c c a e � O r P o O o ct t P'NTUPS ^ N Q --� cd Cd V • rt N r y7 O f•-L—•t L n 200 0 200 400 '00 Sheet No: . �7 1� SCALER = 200' C:� M DA-z Fontana Woods/Brush 38.2ac �v \ . \ - \ - � \ . \ - � . - . •�. - . iiiiiiiiiiii� DA-1 \ - \ . \ . \ . � - \ - \ • \ i �i �iiiiiiiiiii% Luxor W o o dsIBrusii•ijiiiiiiii•. • \ \ • \ - \ • \ \ - i • . iiiiiii] • h 4 0.4 . • \ . - \ / - - jjiiiiiiiiiii - - ac iiii • • • iiiiiiiiiii/;�� . \ - \ /iiii . - .!iiiiiiii /iii - -. • . \ - - \ \ \ \ \ • ii -iiiiiiiiii - - -iii . iiiii . \ . \ /iii - /iiiiii - /iii] . /iiiiii] • iiiiij • / � - \ - \ \ - \ . \ . \ \ /iiiii . iiiiiiiijiiiii - iiiiiii. • . ! . - //iiii/iii aaa aaa ° ° !'/%iiiiiiiii . a a s j����� �✓� a a s a a a s DA —1 a a a s a a a a a s a a a a a s a a a a a / /// a s a s a Montessorti a aaaaa a a aaaa ii o aaa a aaa 4 1 iiiiii /ice f= - aaaaa aaaaaaaa o as aaa a a aaa as a aaa ° a aaa a aaaaa as aa a aaaaa aaa as A � �' aaaaaaa aaa aaa Co rc al.aaaaaaa a a a a aaa --! -_ ___.,•�-_f�� - __ ------------ 4 ac ��7A �aa a a a a a- `-_-- -- — - - - - - - - - - -- � _ �---- --- - f + + U.S, 250 + U.S. 250 �1 n 0 DA— Ashcroft / 51 3 Note: \ DA-2 Pre Includes DA-3 Pre DA —2&3 -- ---__ _ Luxor -" Woods/Brush 14.3ac DA --,2&3 Westminster\ ha, O O J1 MOUNTAIN 1'! ote: rea Listed as C ercial on the ans A eos Listed as ommercial and Exi ting Town & j Country from the drology ---J Calculati s Packa e. ' PIP �r y r� ,S S' U.S. 250 U.S. 250 1 < 200 0 pKDAILU- LOL SCALE-1 = 0' ��c�p\LTH OFG/ `TIM HY R. MILLER CERTIFICATE No. 30542 l z- ONA L 1 Revisions: NO. I DESCRIPTION IDATE 3 -o I 0 I � W m �3 o o 0 � E � Z V N O Li IZ m � W T m v a � m U W M 200 400 -`= F- Q� C o 0 3 0 En Q o U (n O) C a 0 CD LH o a 0 � o � w O O � o O a) E-I Q (f � o i oo ISheet No S-3 mote: Areas Listed as ncon tained on t ontain all the Areas Listed under DA-1 Uncontained from the Hydrology Calculations Packag; \��1��,_ Note:M,, ��Nv Uncontained Area is Part �, of Avemoore Development IN� and will be Required to„�, Provide Stormwater Managment =�^J on Site. k A— , con as 50 Ac. otal1 ' x J C. f `x Y V / f % x - x - % - x % e o Note: Area Listed as Fontana (1/2 Acre Lots) and Fontana on the Plans Correspond with the Area Listed as Fontana (1/2 Acre Lots) from the Hydrology Calculations Packzge, Areas Listed as Townhomes on the Plans Correspond with the Single Area Listed as Townhomes from the Hydrology Calculations Package. D —1 ''' y tar►, ond; �%2 A cre 32.35 c i i • A oe 4.6 ac . - CAI;'. i it I ! I 1 �I I I I I I t. / r ' Co Me gal ';'•;kN i s --------------- U.S. 250 Note: Area Listed as Commercial on the Plans Correspond with the Areas Listed as Commercial and Town & Country from the Hydrology Calculations Packageti Areas Listed as Undeveloped on the Plans Correspond with the Single Area Listed as Q Undeveloped from the Hydrology Calculations Package. .Y 1 i nuur�uuuu DA —2 Fontana r- AX— DA ` ';;ods/Brush=!%!:!'",:':� /i''' •/./!/ ,./'i,�%',./i '.,l,.i// i'i•, , 'is/'•/'i/;.'•jai•'' ,'%' Q N N > N ° -1 C N L 0 0 Wo _c N o E o07 v O 4. T � ya a,�c nHYR. S "ONAL EN�� Revisions: N0. DESCRIPTION I DATE —3 1 1'II F i-+- L !% i; ' /; _ 11 1 LL }-r-7-r-1- L_L_I _I 1 r I I 1 ' , '• i , (1) '0' {I- LL- 0- 4--h -Lf- ' i -1_ i-r-, r- _ \ . I- `+ L I 1-, , , - , - - 1 1 I i - I I- - f- -r L- L ' -l-•. ' 1 , ;=-g- r- I i-t x N x x ,L 1 m � I-;_r I r-ram-t _ I ~' I I I T' / I 11 1 K 'I1 I T i I I I 1�- _•_ 1 1 - r-7._ x Y x x x � - -t• r- -!_i_ 1_I_1 - -1- L-1-_ _ :' T Y Y x z% x f W �_�- m -D *_�, I 1 , 1-T'_'_ _1-t_ - -J ' I_ ' T,_r_i -' -i-i'i-�- • - '-r rl-}1�t, 1 �_� " � x "xxx % x % Tn' i��-_J p � - T� _1 •.b ' L- 1 I L t.J_ _ _• y j? � Y x Y x % K L � _� _i_f_L - - � • 1 I I r, l_ - 1-i Y x K x Y " x x r - - +-+ - -L- - ' 1 ' _' _f '-;- �•- Y % K Y % k t-1•-+- y I ' -7' - + �e�=f' J 1 x% Y x V 1 T K x 11 r lr- I I-T-�+-�- �-r-f-' �1 I I '.' - �_1 1�,,-I-I'� - K x Y x K% Y%% I / _} I I ,• -�-r - -!_ _ 1 y_l_ 1 1I- -r rl-'1' '774'1 -r-�-'1-'-1-J- V'rLTt;- _ x x Y Y x Y x K x Y K a x j,- "+'1--1+-'t_1-1'_r-1-�T-1--1-- ' x x x Y O O -17I- 1 x% Y x " k % Y x Y x -T- �' ' j x Y a x Y= x Y Y x x% x K x x V) .1 -1- - 1 I --=r.r. x % % � J " • x Y x to I.C) 1 rJ ti t 1 TT 1_i'�-1 -T-_� I, I I'T r Y x Y ay,Y-It-i %� J r a o I ,� , '1- , - i x Y Y TAT in Q C C +� •� .� Qi % x x Y K Y x x i K Y `` �D � 0 -� -'- Y Y x x K% x x k x Y x x 1. x,, x x Y z ` L.- 1- 0`Q x x Y% —j—,Y; , 1 Y x Y%% x x I 1 —Y _ Y x x x x x Y Y x x x x % x x Y z x • x % ct 44 Li !r�(CLL '- L_ r 1 Y YK x K x x x x L d • 11��..�'II' t_�_i _4_H_L_I ' I-1 _r_r I y1 I t _L � y 1 1 1f+_ Y x x� �� D � •�-cdJ 1 r 1 0 �--i �_ O _ I T- W } r 0 I + _ o fj `5 -I - I - I 1 CD O - r- I -1 '-tom -T - D 1 � I U O - -L cd I I 0 1 1 1 1 DD I J_ i 1 D e 1 I J _ O 1'. 1� %c O r l _ D t } •Y , � 1 � O D I z.. D t P N a tier .� 1 1 '�- O �i i R f- �f PA To 250 • --I D Q S 5� O (t a >� r Ct ' r U.S. 250 1 CJ r- I U.S. 250 0 �� O r q � 200 0 200 400 60 Sheet 1V o y 1V �J 5 I I I \ \ \ \ \ \ \ (' \ I \ — --- -- \ \\ \\ �\ \\ 1 � \�—Ji// /—..-'_..._ \ \ �� NOTES: ; = a.� E 1. A geotechnical study of the soils to be used in constructing the L _ embankment as well as the embankment foundation must be completed. Q N N co Q A geotechnical engineer certification of the adequacy of the foundation o Q and soils to be used in the embankment is required before construction U @ o begins. Send all geotechnical reports to the attention of Mark Chambers J s s — �' / / — \ \ \ \ — — _ — — — \ at the County of Albemarle Department of Community Development, 401 +J \\ \ \ \ \ \ \ _ �mm McIntire Road, Room 211, Charlottesville Virginia 22902-4596. 2. A geotechnical inspector must be present to monitor the construction E L. n i� \ \ 1 \ \ of the embankment and test compaction. The minimum compacted = v density will be 95% with the moisture content within 2% of optimum. O 0 t0!) Compaction reorts must be submitted to the Attention of Mark Chambers 0 0 at the above address. E \ 3. The embankment must be constructed in a manner to meet all the 0 \ — — — — — — I _ / \ \ \ �\ requirment specifications of Minimum Standard 3.01 of the Virginia Q A . \ \ \ \ \ \ \ \ \ \ \ \ —, _ / / / / 55 _ _ \ \ Stormwater Managment Handbook. LTH of \ \a \ Exist. 20'-INL ��� �\ \ \ \ \ -- �<--� -- __ --�. -- -� — —'--� `��\�\\\� `\\ \\ \\ 1 I` �� _— —_ _ iG/`'V Z \ Easement to �\ \ \ \ �� / / �— � e Aban '1 T � ` \�o' Aaae \ \ \ \ � � ( / -, , \ \ \ \\ \ � � \ \ \\ \ \\ �\ \\\\ \\ \ �\� -' -, ^ - - --- _ � TIM HY R. MILLER a 1� 1 \ \ \ \ `- I / 5 \ \ ` _ _ CERTIFICATE No. \ \ \ E semNnt \TYP _ \\\ 1 \ \\ \ \ \ \ -��-� \ \ \ \ \ 30542 _ \ _ fJ �_J C. \ \ \ \ \ \ \ \ i , \ � \ � �� � / s \ ,\ \ \ \ � ` � — _ _ _ � � \ \ \ \ \ \ \ _ � \ \ \ N0. DESCRIPTION DATE 1 Cnt Comments 09.25.0E 2 Cnt Comments 12.06.0E QJ 530___ rn _--------- Q \ \ \ \\ \ \ \ \ \ \ \ Re \ \ \\ \ \ \ \ \ \ \ I \ ) ) // o Imbunkhien't-Detail \ \\\ \\\ \\�----------__--__---_� \\ \\\\ �\ �\ �\ a 11 l �� > ) / /�lif z 36 5tru�ture\ \ \ \ \ \ \ \ \ \ \\ \ \ \ 20 Access'— p' ;/`F, .� DOLT \ \ \\ \ \ \ \\ \ \ \ \\\ \ •\ \ �\ �_ _ P-Ease rrrerTt—,Typ � I I o 00 t DI 7 � f- I / 0 Access \ \ \ ✓ — \ \ , I I I I \ l I ' I Easement, Typ. \ — pb New Stormwate SWM Facility Easment toI� I `' \\ \ \;'' /\/ l Abe Dedicated t(>-4blic Use 1 r 1 I //� 1 Management Facilit j \ 1 \ <\ ( \ ' ( I I I I / / I / \ 1 I I I I I f\ A \ \ \ / SWM-3 / �� \1 —� \ . Main#ehance WSE = 488 � / / i o \ Access Road a_ l I I I a o FOPEBAY / l > / / / / / 44� / �l \ , _ Rip -Rap i / / / / / / / / / / / \ \ \ \ \ \ 1 I I I / / / 0) 0) Weir 1 I l / / / / / / /� / \ \ \ \ \ I I I I / / / / / / � — qu tic Bench J 1 / / / i // / /,/ // / 1 \ 1 1 1 I I I I I I I I �� / ( (� / o 0 0 /� -- —--WgirRap- — - __ _ -- ___ _ —_ — --'— / // // / / / // / / / 0) C?J -- - _-- = -- — _. _-------__------_ _` _-----�� _ l\G' `�� l / ; I 1 I I I ' 1 I► ; I I I I I / I I, 1 ', I 1 I ► '� t�0 -- --- _ _ --- _—-------__ �\ 4)0 _ NOTE: � � i R" A t' B h 1. VDOT Std. ST-1 Steps are to be provided Hand Wheel o_ = - _ _ _ in the structure. \ 2. It is the responsibility of the contractor „ „ to insure that all joints are watertight. U���� U 1��� 8 8 0 CIV m� — — — ` ` Corrective measures will be the responsibility �� IRIEU CD of the contractor. i� 2.5" -- /� 3. Contractor shall provide shop dwgs for Rust Proof I .. //i• / / / / / / ' the outfall structure. 8" Perforated PVC \ Riser W/End Cap \ VDOT #1 °o °° °°o° °O °° 000 o° 6" Class 53 DIP Pipe @ 1% Min. Valve Stem Support 4' Diameter Concrete Standpipe Rust Proof Valve Stem 6" Cate Valve Watertight Seal 36" RCP Burrell (D+T)/2 0 o , 7.5„ e a. #6 Bars at #6 Bars at i r," n r, 4' O.C. NOTES: 1. Concrete shall be 4000 psi. 2. If the pipe is placed in a trench, then the sides of the cradle shall conform to the trench. c \ Concrete Craddle Detail of 1 N.T.S. _ qua is enc 1p_� Q) 10 O Normal Water o Elevation = 488.0' 12 O c� v Typical 10'x10' Planting Area Floor NOTES: 1. Contractor to reconfirm elevations of Aquatic Bench one week before planting to ensure proper elevations. The Aquatic Bench should be be between zero and one foot below the normal water surface. elevation. 2. Plant all aquatic plants between April 1 and June 15, 3. Prior to planting re -spread three to six inches of topsoil in the areas to be planted. If insufficient topsoil exists, provide wetland mulch such that the combined depth of topsoil and mulch equals three to six inches. 4. Any plant substitutions shall be approved by the County Water Resource Official prior to planting. 5. Plants to be placed on 18" centers. IVIHA BOTANICAL & MINIMUM WATER QUANTITY KEY COMMON NAME CALIPER DEPTH PLANTED IP Iris Pseudacorus N/A 3" 650 Yellow Flag Iris IV Iris Virginica Virginia Blue Flag N/A 3" 650 NL Nuphar Lutem N/ A „ 12 1100 Spodderdock SV Scirpus Volidus N/A 12 1100 Soft -Stern Bulrush W O U Q 4_- � i✓� w Q � O CCS Cd ~ rd �o Sheet No: S-6 '7\ 13 SWM #3 Dewatering Pie Detail AI/E;1 "1y=1 2 I l i I I I I ( �/ 1 of 1 NOT TO SCALE 1 I t Set Valve in Conc. Base, (3,000 PSI Min.) D SWM 3 AQUATIC BENCH PLANTING DE of 1 NOT TO SCALE * Plants must be planted in aquatic bench where static water depth is less than specified. 01 100 yr Elev = 440.25 Elev = 444.6 N N o 10 yr Elev = 438.22 Embankment and E s ns 2 r Elev = 436.92 0 � -v Y Exist. Hand Wheel I Outlet Structure � O' — _ � for Pond Drain Exist. CMP Q) O are Existing -----_ Trash Rack N16 Wide Emergency426.61 (Hfau�e Corner) Shoff , �c x 424.10 (Ground- ShOil Fontana Spillway Elev - 441.00 ❑ O Crest Elev = 434.84 Su b d'Msion � \ - Pond - _--- \ \ Embankment 5' Diameter ���0 t•�'t�+ HW _- =— _- ___ — — — — _ \ \ \ \ ` \ \ \\ — — — \ �\ \ Conc. Standpipe p/ - 1\ a a� 18.7� O-'\\ � It x 42i:06 x 421.59� - - .--.x�- 2.74 0 \ \ EC'-� Type A�tar>.�cet MattmJ• l\ � \ \ _ — to b"I vy, ded on thi \ \ \ \ \ \ -Section of Emergency S�illway \\ \\ \\ \ \\\\ \\ \\ \\ \-� I I I LTH oz, Ri -Ra to b� Provide 1 I I I I \ _ � 2 o ' p tobSection f d` � I I \\ 169.57 LF of 36 RCP @ 3.2% n \ I 1 \ TIM Y R. MILLER — �\ Nerg illwa\y 1 II I \ \ \ `\ Inv In = 427.21 CERTIFICATE No. 0 2.3' Orifice Plate 30542GV- ANAL N Pond Bottom a Base .ad aQ Inv Out = 421.74 Exi'sting jtfa I / / / a Revisions: Location / r / , \ \ \ \ \ \ \ \ \ \ - - NO. DESCRIPTION I DATE 1 Cntv Comment — — — — — — — — — _ _ ` � — \ \ / / / / / \ blew-C"or ete- megemyy piff+Kdy. \ \ _ — — — 2 Cnt Comment ------ _\\ // // , // / / / / .�.` ° ///abftom Elevation - 441.00 16 Wi e- Bo+tong;— R�\� \ \ \ �6 \ — — _ /// //' /' // / � 3;1 Side SIB \ \ \ _ / / \ O / / / / \ \ \\ \ �— / Adak /�50 � —Approximate Location/o# \''.. Existing SWM Fa�ry Easement It \ \ 20' Access -�,�� Easement, Typ. ;-� 1 /� / / / // Existing Outlet \ / / Structure 450 / / , / / / / Cf Existing Stormwater Management Facility SWM-2 I I I l / / / ► % / / / / \ Ey\oe� \ \ \ \ I 1 I , / O I / o, �0 0-0 IIC A Exist, SWM 2 Outlet Structure 0 E 1110 f 1 NOT TO SCALE o � U Iw QNNc1�<C > °>o U� 3 cD o O s m V) Q o 0 U Ln 0 0 01 It A �ailpte ance / / / / / , ,/ /�// 1 I ccpss Road I I I / / / / ,-� •� I \------------ / I I I I I I // O t •� / 1 1 I ( \ \\ \ \ \ \ \ Rip -Rap Emergency _ — — — — _ vz / I \ \ \ \ \ \ \� \ SpflhEay._2' Wide__— 440 --- --- �i� �';,�' �/� � III � � O � \ ► \ \ \ \ \ \ \ ��tt�m, 2 Min Depth_ . — — — — — —� / i / / I I' I 1 \y \\ < 1 \ I \ \ Maintena / / I I � r l Access Road \ � \ � \ - � - _ - - I � / \ \ I \ \ �\ \ \\ \ \ �\ , ----� --- - e - --_�-/ /\� Exist. I 1 1 I / p-j Q) Q 1 �\ \\ \ \ ,� - �vtainfenance _-� - '\-- / / // / I 1 I I I / O _ / - Eore end GYP- i -l- 1 I I I 1 \ \ \ \ \ \ \ \ \ Access RoIId to 6e - - / < ForebaY I (Graveled in Mils- 9F ' / / / / i /� �' / �' �/ \\� I I I 1 I I Note: \ \ \ \\� \ �\/'`---_ \\ \\\\ I 1 \ I 1 I (� Maintenance Access Ro \\,` '�— _ / _ _ _ — \ \ \ \ \ / I I I 1 I I I I -P O \ ' •� .. � J ) \ \ \ I I \ 1 I need to be Relo�coted 'as _ \ gets Developed. C D \ \ \� j \ �� _ i , - ,-- - _ _ - \ \ \ \ \ \ \ I 1 \ \ I I I Access boa k Shah be \ 1 \ \ I Exist. Foreba / / / / / / i /� �\ \\ Y / / / , / / \ •:� / / % \ \ \ \ T orarii aintenan e \ � \ \ \ \ \ \\ �P y /� �� _�\ \ 1 \ \ 1 Acces ad t� tie 0 \\ �\ �OnV ed to / III I / / / , / \\ \\ \ \� \ \� \ \ \\ �� I \ \ \ \ Q O CCS Gr d in this\alrea \ \ \\-edim�r�t Ba / I I ( ( / / // \\ �\ \ \ \\ \ \ \ \\ \ \ \ 1 >� �zi 63 �zi Cd Itt )t `\ \ /-� / /� N ` \ �s�� \, \ /' ,� ' I ► I / \ \ \\ `\\\ ` \ \ Sheet No: y tfalI"1Pip�,fo'rExisi �-Sedir>zertE Bad � /J I ' I / �\ �\ \\ \\\\\\ \ \ \ 0 \ \ 6 \ 2.5" 01 • °d °s ° o ° d ° #6 Bars at 16" O.C. W (D+T)/2 o � d a ° d 7.5" 6 Bars at 4' 0. C. NOTES: 1. Concrete shall be 4000 psi. 2. If the pipe is placed in a trench, then the sides of the cradle shall conform to the trench. rA 1 Concrete Craddle Detail of 1 N.T.S. -w4s­ i 20' Driarlage i 18" 0 z 0 o = -1 _- -- 18„ N C_ a Typical 10'x10' Planting Area Floor NOTES: 1. Contractor to reconfirm elevations of Aquatic Bench one week before planting to ensure proper elevations. The Aquatic Bench should be be between zero and one foot below the normal water surface elevation. 2. Plant all aquatic plants between April 1 and June 15. 3. Prior to planting re -spread three to six inches of topsoil in the areas to be planted. If insufficient topsoil exists, provide wetland mulch such that the combined depth of topsoil and mulch equals three to six inches. 4. Any plant substitutions shall be approved by the County Water Resource Official prior to planting. 5. Plants to be placed on 18" centers. B SWM 1 AQUATIC BENCH PLANTING DETAIL * Plants must be planted in aquatic bench where 1 of 1 NOT TO SCALE static water depth is less than specified ' MAA BOTANICAL & MINIMUM WATER QUANTITY KEY COMMON NAME CALIPER DEPTH PLANTED IP Iris Pseudocorus N/A 3" 1454 Yellow Flag Iris IV Iris Virginica Virginia Blue Flag N/A 3" 1454 NIL Nuphar Lutem Spodderdock N/A 12" 2908 SV Scirpus Validus Soft -Stem Bulrush N/A 12" 2908 ------- _ _ - ------ , ------ - x_, ------ - _ _-------- 100 yr Elev = 418.52 10 yr Elev = 417.83 2 yr Elev = 417.23 0 Crest Elev = 417.80 4 - 1.75'x2.00' Rectangular Orifice Inv = 415.0 Normal Pool Elev = 415.0 Aquatic Bench Pond Drain W/Gate Valve 6" DIP Pipe Pond Bottom Elev = 402.0 L E of j �I C SWM 1 Outlet Structure & Embankment Detail p N N Q I E "' I J > 1 of 1 NOT TO SCALE N - �o > p w E I"a J IL l\ U w w w I J 5 y' N Top of Dam I 30' - o Note: C o- on am m Min. Trash Racks to be Provided all Orifices and Weirs Elev = 422 N N o On all Pond Outlet Structures. Refer to Details on v N L_ I I Sheet S9. E ` 7 - U C U 0 0 8 %' I :C Trash Rack EW-11 Inv DI-7 419.0 Top = 421 2 E N 24" Inv 11 LF of 24" Class III 1 00 418.0 RCP @ 4.8% O 3 Pond 6' Diameter Embankment Impervious o onc. Standpipe 1 Core dGd74� w 64a a<�r 2.00' JB-1 Base W/Type A Tower & DI-7 Top 14 LF of 60" 42 LF of 60" Class IV RCP @ 3.9% Class IV RCP @ 2.7% 119 LF of Exist. 6\ClassV2.7% 2 Inv In = 402.0 d d u < - d 1 n v - < °d e o e S° d a d a d d.6>� a d �/ C e % d d d•� d _ d d� A �a 10'x10'x1/z' d e d as d a. ° Concrete Base °d a .d a s 4 Min. d, a O d O d d ° < d d d -° n -4 = Concrete Cradle to Extend the 1 Cut Off InvIn 25 Inv Out = 400 400.0. Full Length of the Barrel Pipe Trench NOTES: 1. A geotechnical study of the soils to be used In constructing the --------------------------------- ----------'� embankment as well as the embankment foundation must be completed. / A geotechnical engineer certification of the adequacy of the foundation and soils to be used in the embankment is required before construction I --------------- __---' begins Send all geotechnical reports to the attention of Mark Chambers ----- / - - No�1 -- ----- -------- at the County of Albemarle Department of Community Development, 401 / •' F ��s� qL� �adSe°e�---- 661 ��Cour minter Road, Room 211, Charlottesville Virginia 22902-4596. 2. A inspector be to the geotechnical must present monitor construction /� of the embankment and test compaction. The minimum compacted density will be 95% with the moisture content within 2% of optimum. Compaction reports must be submitted to the Attention of Mark Chambers at the above address. O - ' �-- i J J. The embankment must be constructed in a manner to meet all the i requirement specifications of Minimum Standard 3.01 of the Virginia Storniwater Management Handbook. NOTE: 1. VDOT Std. ST-1 Steps are to be provided in the structure. 2. It is tihe responsibility of the contractor _ to insure that all joints are watertight. - _ Corrective measures will be the responsibility _-- - - - J of the contractor. 3. Contractor shall provide shop dwgs for the outfall structure, 8" Perforated PVC - - // Riser WjEnd Cap VDOT #1 ° 00 ° / °° ° 000 °°p 6" Class 53 DIP Pipe @ 1 % Min. D SWM #1 Dewatering F I � 42 LF of 60" Class IV RCP © 2.7% ��-PLTH OF TIM0 Y R. MILLER n CERTIFICATE No. 0 30542 - S810NA L EN�� Inv Out = 395.6 W/VDOT Std. ES-1 Revisions: N0. DESCRIPTION DATE 1 Crity Comments 09.25.06 2 Cnty Comments 12.06.06 Hand Wheel 8 Y' 0 Trash Rack Rust Proof Valve Stem Support 6' Diameter Concrete Standpipe Rust Proof Valve Stem r- 6" Gate Valve a Watertight Seal 60" RCP Barrell Set Valve in Conic. Base, 1 \ 1 of 1 NOT TO SCALE (3,000 PSI Min.) E6me t �o be �ublic sq \ / / ' N \\ � \\\ \\ \\ \\ _ ✓ice �/ // � �� // - \���'� -� C 3 I 0 I � 00 o � o z 2 Z a� U � •o a- ^w H m m � o U o c� r� V 1 C 3 0 t N a 0 U cn a CD 0 0i o c �.o O w w � � Cf � O � � O O O co Cn O E-i &---i w � O co Sheet No: i �J