20080433 Ver 1_Site Plan_20080509

-
~ .
W ~ .
~ • • Storm Event Pre-Development Posi-Development. SEE SHEET C2.01 FOR CONSTRUCTION SEQUENCE
ti / ~ e • Peok Fiow (cfs) Peok Flow (cfs)
s e . _ _ 1 66.75 48.39
• 2 90.87 72.93 EROSION CONTROL NOTES
• \ . 5 124.52 120.91 ,
• • 10 1ass9 144.60 1. THE DENUDED AREA IS 41.62 ACRES.
25 18o.os 171.09' 2, THE RECEIVING WATERCOURSE IS BRIDLE CREEK, A TRIBUTARY OF TURKEY
50 200.64 185.44 CREEK IN THE NEUSE RIVER WATERSHED.
~ - ~ _ ~ 1 100 298.74.. 197.01
3. FEMA MAPPED FLOODPLAIN EXISTS ON THIS SITE PER FIRM ~3720074400J w:e DATED. 5/2/06.
r ~ ` e
I! l _ / 111 h ~ _ _ II a W 4. RIPARIAN STREAM BUFFERS .EXIST ON THIS, SITE AS SHOWN.
~ 5. CUT AND FILL SLOPES WILL BE STABILIZED WITHIN 15 DAYS DURING ANY
I , 1 , I ~ ~ \ ~ 55 YR LO DL \ W PHASE OF GRADING.
- ~ _ ~ f ~ - ~ , , goo ~ ~ ' a
~ W ~ r - \ ~ ~ \ r ~TR 'r~FFeR ` SS ~ ~ • v, ` 6. DAVIS DRIVE AND HIGH HOUSE ROAD WILL BE KEPT CLEAN OF SEDIMENT AT ° ALL TIMES OR A WASH STATION WILL BE REQUIRED.
~ 7. APRE--CONSTRUCTION MEETING WILL BE REQUIRED BEFORE ISSUANCE -0F A ° GRADING PERMIT.
RIGG BEE ~ ~ ~ ~ ~ ~ s ~
~ 8. ALL STORM DRAIN FRAMES GRATES & HOODS SHALL BE STAMPED WITH
/ Brij - ~ r ~ . "DRAINS, TO RIVER" IN ACCORDANCE WITH TOWN OF CARY STANDARDS.
rr ~ ~ \ ~ . ~ ~ ~ ~ ~ ° 9. THE TREE PROTECTION FENCING ON THIS PROJECT WILL BE INSTALLED AND
1 ~SS~~ INSPECTED BEFORE THE GRADING PERMIT IS ISSUED.
1 a ~
%1 ~ ~ _ i ~ ~ ~ ° 10. TO MINIMIZE DAMAGE TO EXISTING TREES NEAR '.THE INTERIOR EDGE OF,
\ • s ~ BUFFERS AND STREETSCAPES, THE CONTRACTOR SHALL CUT' MINIMUM 2
\ \ ~ TRENCHES .ALONG THE LIMITS OF DISTURBANCE, SO AS TO .CUT, RATHER THEN
\ \ ~ ~ TEAR, ROOTS. ~ ~
~ / ~ ~ ~ ~~ss~ ~ 11. THE TREE PROTECTION FENCE SHALL BE MAINTAINED ON THE SITE UNTIL ALL
- - - i ~ - Ni\ ~
r i \ ~ L \ \ \ \ ~ ' ~ SITE WORK 15 COMPLETED AND THE FINAL SITE INSPECTION PRIOR TO THE \ CERTIFICATE OF OCCUPANCY (CO) IS SCHEDULED. THE FENCING SHALL BE
l I ~ ~ _ _ ' \ ' ~ ~ ° REMOVED PRIOR TO FINAL SITE INSPECTION FOR THE CO.
III ~i-- ~ - ~ ~ \k \ \ \ , \ ~ \ \ ~ ~ ~ . 12. SEE SHEET C5.4 FOR SEEDBED PREPARATION.
~ ~ ~ ~s~\ ~ 13. CONTRACTOR SHALL. ENSURE GRADING OPERATION IS CONDUCTED IN A MANNER
I ~ / i ~ I I l / ~ ~ - , ' ~ \ ~ ~ ~ THAT DQES NOT ALLOW ANY SEDIMENT -INTO CREEKS.
- - \ ~ ~ \ ° III ~ \ ~ ~
\ - ¢ \ \ ~\sS~ ~ 14. CONTRACTOR SHALL PROVIDE RIPRAP LINED TAIL DITCHES AT THE STORM
'%1, - ~ \ \ ~ DRAINAGE' PIPE DISCHARGE POINTS AS REQUIRED TO ENSURE POSITIVE fir' ~ \ DRAINAGE.
~ ~ \ J
- - ~ G ~ ~ ~ ~ 15. IN ADDITION TO THE TEMPORARY & PERMANENT SEEDING & MULCHING
f ° \ ~ ° ~ DESCRIBED IN THE .CONSTRUCTION SEQUENCE, THE CONTRACTOR SHALL
~ I ~ 1 ~ ~ ~ } ~ 1 1 ~ ~ ~ ~ ~1 ~1` \ \ ~ ~ ~ • ~ ~s~ CONTROL DUST BY PHASING CONSTRUCTION (WHEN FEASIBLE) AND BY WATER
r ; ~ ~ t 1 ~ I ~ \ SPRAYING.
- 11 / ~ ~ t 1 1
r ~1 / ~ 1 ~ 1 I ~ ~hJ )f, ~ ~ ` ? STORMWATER NOTE
J I ~ i 1 ~ THE PROJECT. WILL MEET ALL OF THE REQUIREMENTS ,RELATIVE TO BEST
~ d I ~ l I I !//r 1` r~ Ir ~ 1 1 1 1 / 1 ,J EXISTING ~ ~ ~ ; MANAGEMENT PRACTICES AND ENGINEERED STORMWATER CONTROL STRUCTURES
_ II ~ ~ - 1 / l l/ ~ ~ 4~ETLAND ~ ~ AS OUTLINED IN THE TOWN OF CARY LAND DEVELOPMENT ORDINANCE (CHAPTER
~ ~ . 111 ~ , - ~ ` \ r , ~ ~ ~ r (OFF-SITE) 7, SEC.. 7.3).
- _ -
EXISTING
VALLE TONE ~ - - - l-~ - - I ' EPHEMERAL STREAM BUILDING RESTRICTION FLOOD -LINE NOTE
DR E_ ~ ~ ~ ~ ! I L I / (OFF-SITE) -THE' HIGHEST BASE FLOOD ELEVATION ON THE SUBJECT PROPERTY AS
~ DEPICTED ON FEMA FIRM #3720074400) DATED 5/2/06 IS ELEVATION 334.00
~w ~ 1 ~ LOCATED JUST, DOWNSTREAM. OF THE BOX CULVERT AT DAVIS DRIVE, ALL
~ l 1 ~ I 1 .r~ ! - - - -1- - - - ! ~ ~ BUILDINGS-.SHALL HAVE A MINIMUM FINISHED FLOOR. ELEVATION OF 336.00.
11 / r/ ~ r /
i ! J p / Om / t 1
/ i 1
r r / ~ / o/~ l l 11 l 1 1 / 1 EXIS EXISTING
/ ! / 1 ! 1 I r r - l ~ ~ WET' WETLAND
l I ; ~ / / / / Irl / ~ . / N 3 ~ I' _ OFF (OFF.-SITE) STORMWATER DI5SIPATOR SUMMARY BASIN .SUMMARY 03/13/2008_
/ / ~ ~ TY - - T1 1 1 . U j ! l 03/13/2008
- ~ i l / I ( 11 C } II ( / ~ ~ l ( 11 f i I W DIMEN510NS AVG DA DENUDED RUNOFF FLOW SA SV SA SV .RISER/
I J ; 11 ~ I _ , I ~ ) ,r I~ I ~ r ~ ! STRT # CLASS STONE AREA COEFF 010 REO'D REO'D BARREL POROUS
_ I L W D Rip DIA Basin ~ (AC) (AC) C (CPS) (SF) (CF) (SF) (CF) REQ'D BAFFLES
,I - I ~ I / ~ j BMP 3 3 / ' (FT) (FT) (!N) RAP (IN) 5B ;~1 21.08 21.D8 0.40 60.88 26,519 37,944 28,800 86,400 YES 3
III ~ I - - / I ~ l - r- 1~1' - - , SEDIMENT uIENT ' NW 10 24 9 22 1 13 SB ~2 16,10 16.10 0.40 46.50 20,254 28,980 22,050 66,150 YES 3
t / {I I ~ / I / / ~ BASIN 3 I ~ II / I I I ~ N 3 HW 160 t2 6 22 t 13 SB ~3 3,'14 3.14 0.40 9.07 3,950 5,652 5,000 15,000 YES 3
I I ~ I II / 1 f I III I - 1 ~ LII l I ~ ~ HW 180 35 18 27 2 23 g6 #4 4,70 4.70 0.40 13.57 5,913 8,460 7,200 21,600 YES 3
HW 310 15 8 27 2 23
l ~ I ~I o I` II II 1 / / a I I I l1 0 1 11 I1 I I I / / NOTES:
o h III I ~ I 1 I I. / ~ / o ~ ~ ~I / I : HW 330 9 5 22 1 13 I-10 _ .7.22 IN/HR, Tc - 5 MIN
~ / ~ r / ~ ~ ~ NW Sao 5 a 22 1 13 FLAW A10 ~ G«I«A SURFACE AREA R~q'D a 435 5F / q10 CF5
a i\ ~ ~ ! I ~ I I - ~i ~ HW 350 9 5 22 1 , 13 STORAGE VOLUME REO'A - 1800 CF PER ACRE OF DENUDED AREA FOR SB
/ ~ ~ 11-1 ~-------ss I a I 1 w w w w I ~ ~ HW 370 12 6 22 1 13 MIN. 2:1 LENGTH WIDTH RATIO
1 FT OF FREEBOARD IS PROVIDED- FOR EACH BASIN. CLEANOUT BASIN WHEN 1/2 FULL { HW 420 36 16 22 1 13 D =-DEPTH MEASURED FROM BOTTOM ELEVATION TO TOP OF DAM
R ~ _ 11 1 ~ II,
~ i I a / ~ 1 1 ~ .1 III I ~ ~ ( I HW a30 12 6 22 1 13 RISER/BARREL REQ'D, SEE DETAIL SHEET POROUS RAPPELS TYPE AND LOCATION SEE OETAII SHEET
\ ~ 1 1 \ ~ I I1~ / / HW 450 12 6 22 1 13 SB -SEDIMENT BA51N W/ RISER
of / \ , / I o / 1I \ I I I r\ p
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.~i//l I I ~t e ~ 1 Ili 1 II I I ~ _ I t 1, 1 I 1, I I ~ - ~ Ir11 l I III ~ II I I MAY.9 X008
1) ~ 1 1 1 - I 1 i DFJVfi-WATE{7 QUALITY
9 ! ~ , EX STING. / ` I r ~ / / ~ ~ ~ I I 0 1°~ ~ l ~ CEM~TERY r- . /r ~ I 1 ~ 1 ~ . DS AND STORM41'ATER BIZAIdGH
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N 1 ~ x w I TOWN OF CARY
~ / ~ . ~ GRAPHIC SCALE
0 iaa o so too saa APProved by - Date
Planning Dote
o Engineering Date
1 inch = 100 ft.
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No. Revision Date B Designer Scale. N PMO 1 = 100, 1 TOC 1st REVIEW COMMENTS 01/31/08 LAW ~ L L GRADING, DRAINAGE Sheet No.
0 OVERALL G o 2 T0C 2nd REVIEW COMMENTS 03/13/08 LAW Drawn By Date WITHERS RAVEN EL
m BRADFORD CJJ LAW 11 08/07 3 MYLAR SUBMITTAL 05/08/08 LAW ENGINEERS I PLANNERS I SURVEYORS C2.0
Checked By Job No. OSION CONTROL PLAN 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withersravenel.com
WAKE COUNTY NORTH CAROLINA & EROSIC o w&R 2oslzsa.ol CARP
Y

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w\ _l ~ ~ ~ EROSION CONTROL LEGEND ~
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/ , , ~ ~ • CE TEMPORARY. CONSTRUCTION ENTRANCE/EXIT
~ . I • ~ W.,,,~ . ,a.• , LC LIMITS. OF CONSTRUCTION,
• ® • rota °
• ~ ° SILT FENCE
• /
• .e, , ~ W . TF TREE PROTECTION FENCE
\ 8 / ~ ~ ~
~ ~ ° , ~ `yy.,,~ ~ TP SILT FENCE, /TREE PROTECTION .FENCE
l ~ - - - ~
i SS- - 5 SS-- - SS- - -SS- -5S ~ ~ ~ 'r 55 ~--------------a-®s~.--------- - ~`~N~ ~ ~ ,.1~, III • ° a., , ? ~ SO SILT FENCE OUTLET
` ICY I ~ pp TEMPORARY DIVERSION .DITCH
i ~ / EXISTING RIR RAP LINED BASE ~ e~ • ~ ~ \ , ' I 1 f STANDARD CATCH :BASIN/YARD INLET .PROTECTION
SS r o DITCH 6ELOW GRASS SWALE ~ . ~ f / ~
I I I TW 3 8.50 CARRYING STORMWATER / / l~ \ \ ~ ; I I p / DISCHARGE FROM DAVIS DRIVE / ~ ~ ~
~ BW 3 5,00 ~ \ . ~ - 1 I ) (3:50 ~ l ( ~ ~ ~ - 1 ~ o I ~ ~i e ~ J ' UTILITY & STORM LEGEND
III ~ \ - r- \ ~ . e ~ i ~ W WATER LINE • f
Ill o , ~ _ _ ` ~ \S \ - - ~ _ _ ~ • ~ ` ~ {l I +~N~' ~ SS SANITARY SEWER ~ \ \ - - ' _ - y - • ..o. , J ~ ~ Q ! STORM SEWER
_._..SS~ ~ ~ - - - - - - - EASEMENT
~ III i ~,TW 338.50 TW 339.00 - - - ~ / _
~ I BN( 332. 8W 333.5Q -I I,------ =--1 ~ ~ ~ ~ ~ ~ / J" ' -r= I ~ 9o'BW`333.5a ~ , - - - ~ _ I _ ~ II , \ \ r - ~ 5.50 - I . ~ \ / I I 1~ (7.5Dfi (5.50) ) I ~T 4 .08 I I i / ~ \ \ \ _
RIG I ~ I Tw 345 00 ~ I1 ~ ~ \ i ~ ~ ~ _ BW 330,00 1 7-r 1 ~ . ~ ~ / \ 1 -c ~1 ` ASS ~ •
1 ~ ~ - / O ~ T ~ _ 4 FARM _ I Bw 33 .oo I . - ~ I ~ . ~ .(12.00) I ~ \I I - \ ~ ~ \
pRIV ~ - _ \
I " ~ PF~a ~ . \ T 6.00 TW 347.5 - . - - \ \ ~
I ~ CB 360 ~ a , / \ i I~ 31.0$ _(8~ - - - ~ \ \ \ ~ 1 HW 430 1 ` \ 11 I 11 \ - ` 1 1
I W ~ ~ ~ ~ 1 ,~1 .00 i' ~ ~ 4'1:50.. _ - ~ ` \ \
\ \ - - -BW-340.80 \ \ \ ~ ~ ~ \ ~ S / PEA OFFER _ _ _ ` \ ~ \ \ ~ ~
I ~ \ ~ ! % \ 111 - T~ - - L~ ~ ~ \ \ • • ~ . , 1
/ ~ CB 351 `lb' _ _ ~°°s ~ ~ T-\ l V\ _ ~ _ ~ - - - ~ / / ~ ~ _ - TIC .m ~ ~ ~ \ - - \ 1 - - - ~ -
CB 353 ~ ~ - _ m JB 431 ~ \
` ~ - . i / . ~ \ I I! I 1~~~ ~ ~ \ I . ~ J TEMPORARY.
\ ~ I Il 1 / \ ~ ~ , . \ ~ \I , ' = CONSTRUCTION
_ \ ~ 1 \ ~ - ~ ~ ~ TW 336.00 \ ~~IT
• CB 372 -1' ~ CB 35Z --J/ ~ ~ _ - ~ ~ \ r HW 350 ~ / ~ _ ~ \ ~ ~'1~ r ~ - ~ ~ ~-,S1',~ \ \ ~ ~ ~ \ BW 332.00 \ ~
\ , II TW 336,00 RS 440 . - ~ ~ - \ 1 \ / i \ \ Ffi fiw 33s.oo \a ~ TW-34a„olt. oo) ; _ _ ~ , ~ \ \ \ ~\~R \ \ BW~330.50 \ \ ~ ~ BW 328.50 I ~ ~J \ \ ~
\ I ~ HW 370 BW 333.00 _ ~ W~ \ TW 349.00 ~ , (7.50) \ BW 330.00 \ ~ ~50) ~ ~ \ ~ \
- \ \ / ~ I ~ TNT-342.0@ - -R~f~
/ _ BW 333.00 ~ - _ _ - / 1 1 ~ ~ ~ - _ RETAINit~G mar, ~ HW 42D
~ I 1 - _ - ~ . 1 l 1 ' \ \ ~ BW 329,00 f !65, \ \ ~ \ ~ \ ,
h ~ 1 ~ ~ \w I _ _ _ ~ _ t , ~A ~ % ~ CB 132 \ ' L' C \ ~ TP ~ (19AD) ~ ~~Y1~337.00 ~ ~ ' ~ ~ \
T'~. ~ ~ \ \ ~ \ ~ ~ ,.'OW 329; \ ~A e(IF'}c ~ \
\ ~ ~S - ..o - _ \ - r
~'it`~ i ~ CB 131 ~ \ ~ ` \ \ \ ~ \ - ~ \ ~ CB 156 \ \
\ I
j I i / / ~k y0J ~ 4M ~ / Vii.. ` \ ' \~``~-.r~\W\ \ \ \ i / ~ - - ~ \ \ \ ~ ~ \ 1 \ \ ~ ~ ti \ '~i
DI 380 / Fe s (m h ro -O N- ~w v"~ \ \ \
/ ss s~ ~ \ 8A fro ~e ~o^ ~ II I CB 373 ~ / 6~ S tiQ "'_"'I _ r 8g ~ w ~ III/
1 6A _ rn p_ \ 11 `I ti / f ~ C8 130 / JB 10A O ~ ' ~ ~Y \ \ \ \ \ ~ ~ ~C ~ ~ ~ \ \
/ ~ ri ! I ~ / tiQ i ~ - \ r' \ u 8~ 'e0 02 II ! I I r / ~ I I'\ ~ GI 313 ~ $F I ~ ~ ~ ~M
% ~ J ~ f l / l S 1 ~~`t~~ '~G ~ ~ ~ \ \ \ JB 42Z ~ ~ \ ~ ~ \
~ 3 ~ s s S~ ~ ~ CB 312 ~ \ k ~o G e / ~ ,
N ~ I r s~ ,ryeJ ~ - ~ \ \ ~ , - I 4 1 i I ~~y~r - W \ 1 \ ~ \ \
III ~ ~ ~ _ \ ~ R1 r ~ i I i / CB 311 \ ~ ~ r, i i \ ~ 9t
~ / I I~ I Nw to ~ - ~ ~ _ _ ~ \ ~ \ \
l J ~ ~ l ~ \ \ \ I - v ~ v v
~ ~ 1 I ~ _ ~ - ~ i ~ RS .432 _ - - 1 ~
~ I \ CB 162 _ ~ ~ \ \ ~ ~ \ \
l~ 1 - ~ W ~ I, Ex DI ~ - - ~ JARGO ELF ~ R!V ~1 ~ I \ JB 161 ~ ~ 160 ~ ~ ~ X48. TW 344.00 \ \ \ R!V \ \ \ \
I . i ~ HW 310 i ! 1 ~ S~- \ - ~ ~ \
~ ~ \ . RS 423 ~ - \ \ ~ ~ \ \ \
~ / CB 374- I ~ AOl15T) ~ ~ ~ / ~ ~ ~ -`R I WALL'" \ \ \
~ f ~61 ~ t I f , 36 ~ Hw 320 ` _ \ ~
I I 1 Hw lao ce 321 .I ~ I ~ _ \ ~
~ I I / 1 I J t
~ I (w ~ , 5e.aohs 1 I I I FFE 3 Q~ ~ i"",.1 1.' ~
I I / ~p;661~ ~ ° 1 ~ I 1 cB lee ' RETAINING WAIL i I r ~
1r I I I I cn ~ ~ \ ~ ~ I N 5 CB 183 JB lal ~ \
~ ~ I w / lszl ~ _ \ o I / I I , ,358.001 N - ~ \ S\ \ ~ .a.e ~ \ \ \
o fY ~ FF6 ,661ZidD) •W'°" N , ~ ~ ~ / - o L - ~ ~ I III ~ ~ 36e ~ i
r ~ I I I ~ , 1 ~ `,;w CB 322 \ C8 163 ~ \ ~ \ I ~ \ \
_ i I ~ ~ Aol1S ~ ~ \ a ~ - I I .358 ~ 1 ~ / ~ " ~ I ~ 6a12NDl ~ ~ ~ ~ j
N I SF ~ she, 1 \ - - _ ~ / ~ ' \
3 ~ ~ ~ 1 ~ I / A ~ _ I to I/ 2 N - 4 - ~ \
r I tnN 1 ~ - T a I , ~ , 111 M I , ~sT) ~ fFE-364.33 (BASEMEN) ~ ~ ~ ~ - - _ - FFE= 4.33 _ ~BA'~EMEtLT)~.` ~ ~ _ \ \ w CB t 3 ~ ~
N EX CB I I ~ ~ .360.001 1 \ ~ ~ GI 323 2 l \ I 1 E .~6t2~D7 ~ ~ ~ ~3~~.aa .~I~-s~F~oe~r ~sss~- (~E~oN~~LOOR) _ - ~ 375,OO'>;F~RSI,~L~OR~ ,~$5,~6 SECOND FLOAR~' ~ ~ \ ~ I \
~ \ I 3TO 1 \ ~ / 396.33 THIRD FLOOR 407.00 FOURTH FL0O - _ - _ i ~ ) ~ ~ _ _ GI 164 _ - -~g~;33-(TFiiRD~fL00~~407.00~(FOURTi~-~LOOR~ r ~ - - ~ \ ~ ~ CB 30
~ `d I ~ ' 59.3 ` ` ~ I
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N 3 . ~ 7 1 > FFE ~ NDl ~ ~ 3591 ~ - \ III I - ~ J , . \ I ~ 0.6612 1 ~ _ - / / ~ \ ~ ~
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1 1 CB ie4 CB 200 - \ 1 / ~ . - - - ~ ~ 1 1 \ ~ = 95. RST EkOOR 3 ~RST ~ Ek00R7 3$5:66- t_SEG~OND FLOOR) ~ \ O ~K M _ 0
70 FLOOR) 407:00 (FOURTH fL00R') j / i ~ % \ \ C ~ df gQ~j~
- I f ~ ~ 1 / ~ .~~jT~IRO FLOOR) 407 a I - 'I ~ ~ 1 ~ 1 _ \ h
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/ - r - ~ 1 1 \ , ~r I, r 1 I - 3x5.,66 (SECON FL OR) \ ~ \ , / 'r - ~ : ~ / ~ . ~ ~ - ~ _ _ / ~ \ ~ ~ ~00~ APPROVED
+3ia.67 / / DFJ~i.WATfi~QUAU1~ TOWN OF CARY
o ~ I ~ I n. , , I , - ~ 396.3 ~~THIRD LOOR) • ~ ~ ~ ~ ~ , +37x.67 1 ~ I ~ ~ ~ ~ 407:00 (FOURTH FL R) ~ - , _ - ' GI 224 GI 44 j / ' ` ~ ,y h WETIANDSAN0STURMWW~R ByC~
~ - ~ \ ~ ~ o RAPHZO SCALE ao APP~oved by Date
f~2~5~F-' /J ~ i ` ` a! ~ i i I Planning Dote
o ~ ~ r _ ~NI ~ I / I \ ~ - ~ ~ 3.25
Engineering Date
/ / / VI) I At 71.251 _ y / ' ' ~ 1 1 1 1 inch. = 40 ft.
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No. Revision Date B Designer Scale N , DETAILED G 1 TOC 1st REVIEW COMMENTS 01/31/08 LAW PMO 1 = 40 ,E D DRAINAGE WITHERS v E N E Sheet No. C2
o LAW Drawn By Date o TOC 2nd REVIEW COMMENTS 03/13/08 BRADFORD
m 2 3 MYLAR SUBMITTAL 05/08/08 LAW CJJ LAW 11/08/07 ENGINEERS I PLANNERS .I SURVEYORS 91
Checked By Job No. & EROSIC OSION CONTROL PLAN 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withersravenel.com
% WAKE COUNTY NORTH CAROLINA 0 0 W&R 2061284.01 CARP.
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/ ~ I .r GI 313 ~ v ~ CB ]30 / I I ~ , / w 8E I/ 1
'1 / / l \ S -,Z \ \ \ ~ ~ \ J8 422 ~ ~ ~
~ ~ ~ ` ! ~ i / i 1 I / ~ ~ ~ ~ ~ ~ ~ \ ~ ~ CE .TEMPORARY CONSTRUCTION ENTRANCE/EXIT
~ I I ~ i CB 311 ~ ~ \ ~ ~ ~ 1 I ~ ~ ~ ~ / ~ \ ~ \ ~ LC LIMITS OF CONSTRUCTION j HW10 s = i~~ ~ ~ \
I I I , ~ \ I / AJ 111 ~ a \ 5g: \ , ~ , I ~
\ / ~ ~ ~ _ ~ _ ~ ~ ~ SF SILT FENCE ~ ` ~ \ ~ ~ ~ - \ ` ` CB t2 \ ` \ ~ TF TREE PROTECTION FENCE
i ~ ! ~ \ 1 I ~ ~ ~ ` RS 437 ~ ~ ~ / CB 162
' ~ 1 ~ ~w ~ ~w vV ~ I \ ' II ~ . HW t60 ) ~I~~T jBA$IN ~ ~ TP SILT FENCE /TREE PROTECTION, FENCE
(J, EX DI _ ~ ~ ~ JARGONS LE E ~ I \ JB 161 \ JB 161 \ / ~ 3~18,Q0 TW 344.00 BW 44.40 :BW-338-00- - \
Ii I ~ HW 310 ~ \ I I - \ - / ter' _ \ Sb SILT FENCE OUTLET
I 1 / I ~ ~ _ / s ' \ cB 3 , 5F , 4 ~ .
1 ~ I _ , 1 I ~ ~ ~ ~ ~ ~ - RS 423 \ ~ ~ \ \ ~ ~ pp TEMPORARY DIVERSION DITCH ~ _
/ ~ ~ I I J r ~ i HW ]80 ~ ~ CB 321 ~ _ ~ ~ ~ ~ ~ I f ~ ~ \ ~ ~ ~ STANDARD CATCH BASIN/YARD INLET PROTECTION
I 1 I ~ I 1 I I / ~ - g ' , ~ ~ ~ ~ \ ~
~ I ~i I I HW 320. ~ I ' I I w 5E ~ V I I _ ~ I 1
I ~ - CB 182 \ - ~ ~ I -
IIiI ,III N ~ ~ \ c ~ \ - UTILITY & STORM LEGEND
i I i ~ - - CB 183 JB 181 ~ I i 3 I I W f - \ \ , ~ \ \
1 I 5D v y il~ ~~l ~ N 1 ~ ~ ~ v - " ~ ` \ ~ ~ ~ ? W WATER LINE
III I 1 v ~ - 1 ! - _ ~ - " ' ~ \ yy ~ SS SANITARY SEWER \ ~ ~ ~ - STORK SEWER
II / ~ I ~ / ~ \ ~ f / / \ \ CB 163 / ~ ~ A - ~ ~ ~ I ~ ~ - - - - - - - EASEMENT
I I I I I / ~ CB 322 ~ \ - - - I l I , 5C ~ ~ - ~ i . \ ~ I ~ ~ ~ \ - .
I IIII I ~ I / v~ I ~ ~ I
_ 3 ~ II ~ \ \ _ II - \ ~ ``~.,..FFE=~J ~ASEI~E~T)_ ~ r ~ ~ ~ \ \ DD I l J ~ ~ \ \ \ \
III I M ~ ~ FFE=364.33 BASEMENT) - - ~ ' \ _ - _
11 1 \ ~ \ \ - 7 . -.f11~ST-Ft00R X85.65 ECflND~L00R GI 323 z ~ ~ - - 37 - - ~ 375.00'(FiRSI FLOORS ~&5.5`6~SECOND fLOAR"r ~ w CB 13 I \
I' 1 ` ~ TH F J _ cl 164 - 39 ~W I 396.33 (THIRD FLOOR) 407.00 (FOUR L00~ - - -396:33-(THIRD EL00~~407~00 (FOURTI~ BOOR) = _ \ , ~ I CB 3o I L~~ \ ~
~ 11 / 3 _ _ _ / I I 59.3 ~1 - ~ ~ I ~
- I I 11 11 1 _ I ~ r l I~ _ _ 359.33
3 I / 1 1 > \ ~ ~ ~ 359. - \ ( III - - - \ \ \ \ I~
I / \ \ \ ~ / \ ~ / - 359.33` -1 - I
- ` ~ I ~ 3 9.33 1 \ \ 1 ~ ~ ~ / ` I / ~ 365----, ' i / / i 1 X11 ~ \ ~w 1 ~ ~ I a~\ TP
- i / ~ / ~ • _ i 1 ~ ~ l 11 - - 1 ~ _ _ ~ ~ _ _ _ _ I ~ 1 111 / ~ ~ ~ '
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3 J I ~ ~ cs 184 cB 200 _ 1 1 ~ , ~ . / /
1 - 1 \ ~3~5b FIRST FLOOR 385:66- 20ND FLOOR ~i / Y1210 1 ~L Q ~ ~ ) / / ,I ~ _ 1 1 ~ - 3 ('t IRp FLOOR) 407.00 (FOURTH FLOOR)
/ ~ ~ 1 \ \ 1 TW 37b.00 BW 353.50- ~ ~ ~ I / ~
I ` / \ ~ \ \ \ ~ ~ ew 3sX.oo (10.50}~ 1 ~ / ~ ~ ~ ~ \ s.oa
I L - .FFE=3:00 (FIRS LUO~ 1 \ r / - ~ I ~ t / _ 1 / ~ I, r J I 365.,fi6 (SECOPln FL OR) \ ~ ~ ~--___-J / / ~ ~ ` ' ~ ~ { } 1 TW 36900 / ~ , / \ \
- I I W _ \ '1 ~ \ i I / I \ ~ ~ / / / ~ ~ 1 FFE=35.00 (FIRST FLOOR) ~ sw 3sd5o ~ ~ ~
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2 TOC 2nd REVIEW COMMENTS 03/13/08 LAW Drawn By Date WITH ERA RAVEN EL
00 3 MYLAR SUBMITTAL 05/08/08 LAW CJJ LAW 11/08/07 BRADFORD ENGINEERS I PLANNERS I SURVEYORS C2.2
o Checked By Job No. & EROSIO OSION CONTROL PLAN 111 MacKenan Drive Cary, North Carolina 27511 tel; 919-469-3340 fax; 919-467-6008 www,withersravenel.com
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1 inch 6 40 ft.
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0 a cc No. Revision Date B Designer Scale
N 1 TOC 1st REVIEW COMMENTS 01/31/08 LAW PMO 1" = 40 -ED GRADING, DRAINAGE Sheet No. WITHERS RENGINEERS I PLANNERS I SURVEYORS C2.3
o 0 2 TOC 2nd REVIEW COMMENTS 03/13/08 LAW Drawn By Date m 15RADFORD
3 MYLAR SUBMITTAL 05/08/08 LAW CJJ LAW 11/08/07
Checked By Job No. 1-771 . WAKE COUNTY NORTH CAROLINA EROSIC \0 ION CONTROL PLAN 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withersravenel.com
w&R 2061284.01 CARP
Y

i \ \ I \ ( I / ~ a \ \ \ \ \ , ~ \ \ 1 ~ ~ \ 11 PLANT LIST ST
\ ~ ~ \ \ \ \ \ ~ ~ ~ ~ ~ - - ~ UA. KEY BOTANICAL NAME OTANICAL NAME COMMON NAME SIZE. SPACING
' i \ \ \ ~ \ ~ \ \ ~ ~ 200 ACV ACORUS CALAMU \ ~ \ \ ~1 \ ~ 5 COC CEPHALANTHUS ~ORUS CALAMUS'VARiEGATUS' VARIEGATED SWEET FLAG 1 GAL. CONT. 18" O.C. sc~EEN AccESSIBLE r~ROUCH DooR :PHALANTHUS OCCIDENTALIS BUTTONBUSH 5 GAL. CONT. AS SHOWN vENT
• \ \ \ \ / 92 IVE ILEX VERTICILLATA EX VERTICILLATA WINTERBERRY HOLLY 5 GAL. CONT. 3' Q.C. ' sK~ R Is ro BE A suRFACE
~ \ \ \ ~ ~ ` 250 IVA IRIS VIRGINICA . e , IS VIRGINICA SOUTHERN BLUE FLAG BARE ROOT 18" O.C. DEWATr7tING DEVCE SUCH AS BMP
\ ~ \ \ \ ~ \ / r \ 20 PVS PANICUM VIRGAT ~NICUM VIRGATUM'SHENANDOAH' SHENANDOAH SWITCH GRASS 3 GAL, CONT, 3' O.C. SKIMMER oR APPROVED DEVICE.
\ ~ ` ~ ~ ~ / ! \ ~ , • 27 PPM PENNISETUM GLA ~ ~ ' \ \ ~ ~ , ~ \ ~ ~ ~ ` 250. RSU RUDBECKIA SUBT :NNISETUM GLAUCUM'PURPLE MAJESTY' PURPLE MAJESTYMILLET 5 GAL CONT. 3' O.C. JDBECKIA SUBTOMENT05A SWEET BLACK-EYED SUSAN 4" POTS 18" O.C.
~ I ~
- \ ~ \ _ ~ ~ I 13 . \ ~ ~ PLANTING NOTES: - ~ 0 NTING NOTES:
\ c~ \ ~ \ ~ ~A \ ~ 1. TOPSOIL STRIPP "I \ \ ~ ` \ \ ~ . ~ ~ \ ~ \ ! HW 420 M etlFF \ TOPSOIL STRIPPED FROM SITE MAYBE USED FOR BEDDING MATERIAL,
~ \ ~ \ ~ ~ _ i ~ I ~ \fR \ \ HOWEVER LOCI \ \ \ \ \ \ \ ` , • ~ , ~ ~ _ . - ~ \ \ ~ \ \ WETLAND PLAt` HOWEVER LOCAL SOILS AND ON SITE SOILS MAY NOT BE SUITABLE FOR WETLAND PLANTS. PRIOR TO INSTALLATION OF BEDDING SOIL,
\ / ~ \ \ \ \ • \ \ ~ \ ~ • LAN SC E CO LANDSCAPE CONTRACTOR SHALL SEND SOIL SAMPLES FROM SELECTED FLOAT
~ \ \ \ \ \ \ \ e \ ~ U' \ \ -,r: \ I ~R \ \ ~ ` \ SOURCE TO EITI SOURCE TO EITHER NCRS OR THE NC STATE AGRICULTURAL EXTEN510N FIFxIBLE aolNr
\ \ ~ \ \ \ \ - f \ ~ ~ \ \ ~ UFFE \ \ ~ FOR SOIL ANAL \ \ ~ ~ . \ 1 R \ - FOR SOIL ANALYSIS. {RADIATOR HosE)
\ \ \ \ \ ~ v ` - • ~ ~ ~ \ ~ 2. DO NOT PLAN I \ \ \ \ \ \ \ \ \ \ \ ~ ~ ~ I I \ 3. -ALL PLANTS TO DO NOT PLANT AT OR NEAR RISER STRUCTURE DRAW DOWN DEVICES. ALL PLANTS TO BE IRRIGATED,
OUTLET END: CONNECTION
TO OUTLET PIPE OR RISER BARREL PIPE LONGER IRAN SHOWN, NOT INCLUDED WITH SKIMMER SUPPLIED BY USER.
\ \ \ \ \ \ \ \ \ ~ , \ ~ O ~ \\1 \ _ \ I \
~ \ \ ~ r \ \ ~ - ' , ~ - _ _ ~ ~ \ ~ \ D AINAGE EASF~MENT
.,,1',, , \ \ \ \ \ ~ \ ~ \ \
` ~ ~ ` ` 1 r \ ~ ` DRAT AGE EASEMENT \ \ \ \ I ' \ \ ~i \ ~ \ \
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DETAIL No.
STANDARD SKIMIVVIER DETAIL 04000.18
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~ ~ ~ CoC, - ~ A w \ \ \ \ JB 422 \i ~ \ ~ , 1 \ T \ ~ RISER -BASIN
I ~ I I I { . ! i \ \ ~ ~ ` ~ ~ NOTE: FOREEfAY TO BE INSTALLED AFTER COMPLETION OF PLETION OF (VERSION AF 0,009 SLOPE ON TOP OF
J { "'~~4 / ~ ~ \ ` ~ ~ ` GRADING & RETAINING WALLS AND AFTER CONVERSION AF B I ~ ( / i ~ \ \ \ ` ` ~ MP FROM EROSION CONTROL DEVICE TO WET POND. 50 / ~ \ \ ` \ \ \ \ \ f POND. GUTTER.(FLAT SLOPE) RCP RISER
I 11 25 \ ACV \ \ \ \ \ \ \ \ ~ \ SO SEE PLAN FoR LEVEL 1' MIN. FREEBOARD
I I I \ Rsu Rsu ~ Iv ~ • < \ \ \ \ \ ~ \ • \ SPREADER LENGTH TOP OF DAM LEVEL SPREADER uP ELEVaraN= - WATER LEVEL DURING STORM.
/ / i ~ \ \ \ \ I / 25 ~ ~ \ ` \ \ \ \ 4"-6" HIGHER EXISTING SLOPE ON TRASH HOO
I 5 \ ~ 24" CURB & GUTTER (3,000 / \ IVA / ~ ~ \ \ \ \ PIPE FROM RISER DRAWOOWN PSI MIN COMPRESSNE ITTER (3,000 DOWNSTREAM SIDE - - ;OMPRESSNE DIFFUSED FLOW
I i ~ ` ~ \ \ \ \ STRENGTH STRENGTH) --r THP,OUGH BUFFER ~I-I I I_I I- I I_I I-) I I-1 I I, ~ I
\ FO E~3AY%' ~ 50 ~ \ ~ \ ~ a I I=I ~ I= PEAK FLOW ATTENUATION. POOL - -1
\ \ ~ IVA ~ \ ~
III--- _ I -I i ~_I I 1- ~ - MINIMUM SLOPE 3:1
\ ~ ~ ~ \ \ IN TA L CLASS B RIP RAP ~ ~ ~ \ \ \ 18" MIN DEPTH, 3' WIDE COMPACTED 45 THICKH(MIN)rONE - ~ ~ ~ III-III _ 1I- SUBGRADE PERMANENT GEOTEXTILE I I'--III =1 I i-I I I ILI I
\ \ \ \ \ / f _ \ \ \ \ \ \ WITH GEOTEXTILE UNER UNDERLINER '-I ~ I-
III-1~1-'_;.• -II-_ _ EARTH DAM
\ ~ \ \ ~ \ \ ~ " ~ ~ ~ ~ _ _ _ _ \ ~ \ \ \ \ NOTE: FOREBAY NOT REQUIRED DUE TO LOW III- : - III-_ I
~ 'SO ~ - IVE ~ \ ~ \ FLOW FROM DRAWDOWN ORIFICE
I ~ lug s -9 z ~ ~ ~ ~ ~ \ \ \ I I \ \ 11 I ~ ~ AGU 5Q ~ _ _ - \ \ \ TYPICAL FOREBAY LEVEL SPREAD EVEL SPREADER DETAIL ' I 1=1 -III-III-I I II ~ II I I~ 1==-_ =11 I RIP RAP
IVA R5U R5 423 20 \ \ \ \ \ ` \ * PVS 'PPM ~ \ \ \ \ \ - -1 ~ I-1 I i-i i i- I I I i_I 11-= _ ' I,-- ~ .III-III-1 I I-I ~ DISSIPATOR
) I ~ { .Rsu \ \ ~ \ \ \ \ N1S ' -ANTI-FLOATATION DEVICE, ~ III,,I~II~ II-= -
l \ _I I I-I ~ 1- _
ANTI-SEEP COLLAR -I i .I I ~-1 I -_-1 I - ~'-111=III,;,III,,,III„
OUTLET PIPE
CROSS SECTION
NTS
- ~ ~ \
- - \ \ WET POND
- - \ l ~ i \ \ \ \ \ I ~ \ \ \ \ \ \ - GRAPHIC SCALE
_ \ ~ \ DIMENSIONS ELEV.
_ 1 inch = 30 ft. ` TOP OF DAM WIDTH RETAINING WALL 348.00
ANTI-SEEP COLLAR 48" x 48" N/A
TOP OF SPILLWAY. N/A N/A
~f4 REBAR 12" SLAB TOP O.C.. EACH WAY 1 2" PREFORMED. JOINT (OPEN ALC 4 SIDES) :--_.sLAe roP TOP OF ANTI-FLOATATION 7' x 7' x 3' 331.50 (OPEN ALL 4 SIDES)
/ FILLER, 12" WIDE , _ TOP OF RISER 5' x` 5' BOX 347.25
ATTENUATION ORIFICE 2.5' X 6" 341.75
8" M!M . 8" MiN. _ _ DRAW DOWN DEVICE 4" SIP w/ 3" ORIFICE 339.00
TOP OF RISER=347,25 TOP OF RISER=347.25 _
OUTLET PIPE INVERT UP 36" RCP 332.00
PRECAST REINFORCED BOX • 6" THICK SIDEWALL (MIN) sRENACIic s~oEwAiiEiMNj" OUTSET PIPE INVERT DOWN 36" RCP 326:50
TRASH RACK SLAB TOP
8" 2,5' x 6" ORIFICE=341,75 2.5' x 6" ORiflCE=341.75 1/4"x 2" STEEL STRAP W/
1/4"x 2" STEEL STRAP W/ 2 - 3/4" ANCHOR BOLTS 2 - 3/4" ANCHOR BOLTS
ELEUATrON SECTION 2 STRApS REO'D 2 STRAPS REO'D IT
'O-RING' JOINT '0-RING' JOINT
0 2000 p5F MIN. ' SEE BMP SECTION FOR SIZING DATA ' o BEARING CAPACITY _ D
~ 9ENEATH COLLAR a 90' ELBOW f"~
I TYPI AL ANTI-SEEP. COLLAR C I I DRAW DOWN DEVICE ~ 4"x4" TEE... 1 ~ r•r
z - 4"x4" TEE 4" IP WET POND POOL=339.00 I I NTS WET POND POOL-339,00 D (4 DIP W/ MECHANICAL MqY ~
"r / / / / / NOTE: JOINT FIttfNGS) I I /
M ~h~ ~ ~ - ` ~ ~ ~ \ PLACE STEM SUPPORTS r ~DSgr~~lv~141P ///,/fAi 3' O,C. 3,0" ORIFICE ~~wA`~NSkfi(
° ~ ~ ~ PLACE STEM SUPPORTS ~ / 4" DIP N07 CONNECTED TO VALVE N\ 8 C ~ ~ ~ AT 3 O.C. ~ ~ ~ ~ (SEE DRAW DOWN SECTION C-C) ~~r~~~/~~ (DRAW DOWN DEVICE SHALL 8E CAPPED.
T \ EROSION CONTROMDEVICEO7O WE POND)
o \ AI ~ ~ \ ~ \ \ ~ BOTTOM DR N ~ ~ ~ ~ ~ ~ \ ~ ~ ~ / ~ ~ ~ ~ /
o ,.--DRAW DOWN DEVICE ~ ~ ~ \ ~ ~ ~ . ~ ~ ~ ~ \ '0-RING' GASKEiED 4" DIP - //~~~j\~/\ / 000 CLASS. III RCP \ \ i '0 RING' GASKETED , ~A 0pg00 aaoc° ,
~ ~ ~ ~ ~ \ ~ \ ~ ~ 90• ELBOW ~ ~ 3 n I•/ / / / / / / / / / / / / ' RIFI E / / / / / / / / / ~ (SET IN GROUT) I I I I I 2.5'x6 0 C ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ /~j /~j 36" DIAMETER , CLASS III RCP ~j ~j\~ I 00°°o N CARD °0°°
i (ABOVE DRAW DOWN} ~ . ~ ~ ~ ~ ~ ~ ~ ~ \ 'h' (BEYOND} ~ 36(BEO OND) R c~°~ a eo°ooo°pe~/~°°°
~ ~ / ~ / / / / / / GROUT EACH SIDE ~ STEM SUPPORT ~ ~ ~ ~ ~ ~ ~ ~ / ~ ~ o \ \ \ \ \ \ \ \ ~
U / / / / / / / k.. ii~ii ~i~~i~, ~~~ii~, o o e
\ \ \ \ •P^ , \4" NR GATE VALVE \ \ \ 4 NR GATE VALVE \ \ S ~ ~ ~ S ~ / / SET IN GROUT TE VALVE
g ~ / / / 'i c I R T I I / / ( ,(.,ET N G OU) JOINT SEALED WITH A-LOK NEOPRENE ~ / ~ I i \ \ \ \ J GROUT}~ / °°oy°e°e F 4
d - i ~ \ \ \ ~ ~ \ I I A K T OR APPROVED EQUAL \ \ N '0 RING' GASKE ED ~ ~ ~ ~ ~ ~ ~ G S E ( ) BOTTOM DRAIN o ~ ~ ~ ~ ~ ~ ~ ~ ~ I I i 1 A H WA CLASS III RCP ~ ~ ~ ~ ~ ~ ~ ~ CAS N M N OLE LL ATTACH TEMPORARY SKIMMER p~ . ` \ ° ° eeeee
~ / / / / / / / / ~ I i 4" NRS 36" DIAMETER ~ ~ ~ ~ ~ ~ ~ I I INV.=332.00 \ \ \ \ \ i ~ ~ \ ~ ~ ~ ~ ~ IIIRP ~/1\~~~ / 90' ELBOW °00~ooaoooo~ 0000 ~p
GATE VALVE ~ ~ \ \ ~ \ \ \ \ I t '0-RING' GASKETED CLASS C ~ ~ ~ ~ ~ / I I 36" DIAMETER ° / / I I I I 4 DIP
ro ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ I I INI/.=332.00 ° \ ~ ~ ~ ~ ~ ~ ~ ~ POND BOTTOM=332.00 N \ ~ ~ ~ ~ ~ ~ I I ° ~ \ \ \ \ \ \ I 90' ELBOW I I 70 LEVEL SPREADER
~ ~ ~ ~ ~ ~ PAVEDINVERt :.•,e,.GROUT 6" ~ ~ ~ ~ ~ ~ ~ ~ ~ \~j\~/ (SET IN GROUT) ~ /P/~ INVERT 07-SP-114
o ••I•• e ' ' , ~ .I ~j~ PAVED INVERT ~
' • ' APPROVED . ~ Y ~ I d ~ ~ N TOP OF ANTI-FLOATAitON • „ ~ '
o A H LE o • ' .a • < ` .•u . ,•'a TOP OF ANTI-FLOATATION \ \ \ I u°•e,, u <,d INV.=3.•rL50 ~ ~ M d • - ; d INV.=sst5o .I. , • ~ ' . 'r r . • OWN OF CARY • d .,.Q. ~ .a,e.• .e , Ube, 1'•..~. ~ .,d LJ
70 LEVEL SPREADER ~ o e, a a' d ~
0 o RISER PLAN VIEW - '~'d ' ' Approved by. Dote
Planning Dote
i NTS
o RISER & DRAW DOWN SECTION A-A RISER & DRAW DOWN a DRAW DOWN SECTION B-8 DRAW DOWN SECTION C-C Engineering Date
y NTS o NTS NTS
a
0 00 Date B Desi ner Scale
No. Revision g 8 CJJ HCF 1" = 30° 0 1 TOC 1st REVIEW COMMENTS 01/31/0 STORMWATI WATER MANAGEMENT PLAN Sheet No.
2 TOC 2nd REVIEW COMMENTS 03/13/08 CJJ Drawn By Date 00 rB"RADFu",RD WITHERS R"ENEL
3 MYLAR SUBMITTAL 05/08/08 PMO CJJ LAW 11/08/07 ENGINEERS I PLANNERS I SURVEYORS C6.0
to Checked By Job No. i WAKE COUNTY NORTH CAROLINA (BMP#1) 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withersravenel.com
o w&R 2061284,01 CARY
Y

MINT ~ ~
DRAINAGE EASEL , ~ \ - - - - ~ -
NOTES:
_ _
~ 1: SEE RISER BASIN DETAIL & SKIMMER
DETAIL ON SHEET C6.O.
f e _ \ 2. SEE TYPICAL FOREBAY/LEVEL SPREADER
4.0' wiDE WEIR DETAIL & SPLITTER BOX (JB 431) DETAILS ON SHEET C6:3:
BOTTOM DRAIN STEM SUPPORT
t
- ~ / _
HW 430 / ~ ~ ~ \ B - e
~ \ \ I \ ~ I ~ \ I~AINAGE EASEMEN .EASEMENT - WET POND
.GATE VALVE
SPLITTER ~ / ~ r - _ - ~ - ` \ \ ~ 1 V PR ADER ;FADER DRAW DOWN DEVICE ~ i ~ 4" NRS O CLASSGARCPED DIMENSIONS ELEV.
\BOX ~ , \ - - - , \ \ - 42" DIAMETER TOP OF DAM WIDTH RETAINING WALL 351.00
_ ANTI-SEEP COLLAR 48" x 48" N/A
JB 431 ~ O- ~ ~ \ \ \ ~ \ ~ 1 ~ ~ \J A A TOP OF SPILLWAY N/A N/A
TOP OF ANTI-FLOATATION 7' x 7' x 3' 337.50
a.o' WIDE WEAR MANHOLE TOP OF RISER 5' x 5' BOX 350.00
(ABOVE 80ii0M DRAM & DRAW DowN) ATTENUATION WEIR 4,0' WIDE WELR 349.00
~ /rte ` I ~ l l ~ II RISER PLAN VIEW ATTENUATION -WEIR 4,0' WIDE WEIR 348.25
Nrs DRAW DOWN DEVICE 4" DIP W/ 3.0" ORIFICE 345.00
- OUTLET PIPE INVERT UP 42" RCP 338.00
~ _ - , - OUTLET .PIPE INVERT DOWN 42" RCP 330.45,
_ _ _
- \ I ~ TRASH RACK SLAB TOP
- /
~ \ \ ~ j /
SLAB TOP SLAB TOP {OPEN ALL 4 SIDES) (OPEN ALL 4 SIDES)
_ - ~ ~ I
_
_ \ ~ ^0 l 8" MIN. • 4.0' ~70E WEIR (ONE SIDE ONLY) 4,0' WIDE WEIR (ONE SIDE ONLY) 8° MIN.
' . TOP OF RISER=350.00 _ _ TOP OF RISER=350.00
- \ /
L~ I ` ~ PRECAST REINFORCED 80X PRECAST REINFORCED BOX 6" THICK SIDEWALL (MIN) WEIR=349A0 6" THICK SIDEWALL (MIN)
~ ~ I ~ WEIR=349.00. i ~ \
- ~ WEIR=348.25
~ J` \ ~ f J WEIR=348.25 - - - - 1 ~

- \ t - - _ y \ 4.0` WIDE WEIR 1/4"x 2" STEEL STRAP W/ 4.0' WIDE WEIR i/4"x 2""STEEL STRAP W/ 2 - 3/4" ANCHOR BOLTS (ONE SIDE-ONLY) 2 - 3/4 ANCHOR BOLTS
- - - - ~ _ ~ (ONE SIDE ONLY) 2 STRAPS REO'D 2 STRAPS REO'D
r~ 'O-RING' JOINT , '0-RING' JOINT ,
i \ ,
/ 1 _ l ~ , y ` / ~ 90° ELBOW i - ~ \ . ~ ~
\ ~ ~ ~ DRAW DOWN DEVICE 4"x4" TEE ~ ~ ` \ / \ ~ (4" DIP W/ MECHANICAL
~ - ` WET POND POOL=345.00 JOINT FITTINGS) I I
- ~ \ ~ • NOTE:.
- ; \ \ \ / AiA3E0.C.M SUPPORTS
/ ~ 3.0" ORIFICE - \ \
\ / / _ \
- \ \ ~ _ \ ~ ~ ~ / \ ~ / /
~ . ~ / \ , / ~ ~ \ ~ ~ ~ 4" DIP N07 CONNECTED TO VALVE ~ \
~ ~ ~ \ ~ / ~ / ~ / \ ~ ( (SEE 807TOM DRAIN SECTfON B-B) / - - ~ i \ \ / ~ v ~ ~ ~ A \ \
25 ~ ~ / / ~ .A'' \FOREBAY ~ / / / /
~ IVA a ~ \ \ ~ ` - / / / R5U ~ s _ \ \ \ GROUT EACH SIDE ~ GROUT EACH SIDE
/ Pvs R 432 Rsu ~ / / / ~ S 50 ~
25 ~ / / / / ~ \ .4" NRS GATE VALVE
I I RSU ~ ~ ,I / / / / I I I I / ~/\~(SET IN GROUT) ` Y • I I ' I t JOINT SEALED WITH A-LOK NEOPRENE \ I I GASKET (OR APPROVEDLEQUAL) RENE
SU ~ ~ ~ I 1 J I \ \ \ \ \ \ I i GASKET (OR APPROVED EQUAL 80TTOM DRAIN I i CAST IN MANHOLE WALL I I CAST IN MANHOLE WALL I I ATTACH TEMPORARY SKIMMER ~ I I
\ ~ / / / / / I \ ~ / / / / / / ~ - \ \ I t INV.=338.00 \ \ \ \ \ I '0-RING' GASKETED CLASS .III RCP I I '0-RING' GASKETED CLASS III RCP
~I VA ~ ~ ~ POND BOTTOM=338.00 I I 42" DIAMETER I I 42" DIAMETER INV.=338.00 POND 8`OTTOM=38.00 t I i i /INV.=338.00
I ~ ~ I I~
I I \ ~ ~ 25 ~ ~ / / / / / / / / / / / / / ~ AVED INVERT / / / / / / / / / / / / ~ I I GROUT 6" ~ ~ AVED INVERT GROUT 6"
- - 50 \ RSU \ ~ \ ~ \
~ / / 'I' ~ I r \ ~ / ~ / ~ ~ 90' ELBOW ~ • ~ :1, r . \ \ \ ~ ~ (SET IN GROU) . , • , , •.u • . • ~ r ~ ~ \ I v , a ,.a" ~ TOP OF ANTI-FLOATATION
•I \ ~ \ / / ~ ~ .d a.. . ..d 1 a , • •.a ~u ' • . TOP OF ANTI-FLOATATION / o ; .:a. ~r^'• a a• • "d ti' I . a INV.=337.50 N~ A e : . ~ ..,a.. ~~a' : ••n ; ' ~ a INV,=337.50 .

I RSU 25 5 5 \ \ ACV RSU 50 25 ~ ACV 2 I ~ I COC ~ 50 RSU ,
{ ~ .IVA R5U AGE 25 50 ~ 90 ' ~ a ~ ~ RSU IVA i
I ~ RISER & DRAW DOWN SECTION A-A ~TION A-A BOTTOM DRAIN SECTION B-B
J I A ~ NTS NTS MqY 9
o \ ~ ' NTS ~ ~ Q \ ~ ~
r \ a ~ - yy~~,,..,,..__ ~O~g
I \
~ ~ ` a I ~ (~~RB
N \ ~ ~ FOREBAY ~ ` o ~ \ ~ ~ I tr?,~1
~ ~ I ~
o ~ \ - _ I Fy i;1;,~,
N \ I \ ~f
\ ~ ~4 REE r ~ - ` ~ Ai 4 REBAR 12" DSAt •'~,VvV~, c
I \ I \ ~ ~ O.C. f O.C. EACH WAY "'~I~;I~CN 1/2" PREFORMED JOINT
- ' o • 9 FRLER, 12" WIDE 1.
GRAPHIC SCALE L r .
~ 30 0 15 30 60 j , ooeoooooaooaooooo0 o, ~N
P A T LIST. 3 LN - 9 oo g
1 inch ° 30 ft. ~ QUA. KEY BOTANICAL NAME COMMON NAME SIZE SPACING ~ ~ 1v'
N ° 200 ACV ACORUS CALAMUS'VARIEGATUS' VARIEGATED SWEET FLAG 1 GAL: CONT. 18" O.C:. o Q ~
r ~ 0 CEPHALANTHUS OCCIDENTALIS BUTTONBUSH 5 GAL, CONT. AS SHOWN 5 C C °o OZ8942 a e
90 IVE ILEX VERTICILLATA WWTERBERRY HOLLY 5 GAL. CGNT. 3' O,C. o - R~~ o o= o
250 IVA IRIS VIRGINICA SOUTHERN BLUE FLAG BARE ROOT 18" O.C. _ APP °.y~y~aFNG~N~~~~°°~~"o~~° s" ooao'~Roa C , ~~o~,oao
25 PVS PANICUM VIRGATUM'SHENANDOAH' SHENANDOAH SWITCH GRASS 3 GAL: CONT. 3' O.C. 30 PPM PENNISETUM GLAUCUM'PURPLE MAJESTY' PURPLE MAJESTY MILLET 5 GAL CONT. 3' O.C. ooaoo
250 RSU RUDBECKIA SUBTOMENTOSA SWEET BLACK-EYED SUSAN 4" POTS 18" O,C. ELEVATI01 ELEVATION SECTION
N ~
PLANTING NOTES: F I 200o PsF MIN. 07-SP-114
° 1. TOPSOIL STRIPPED FROM SITE MAYBE USED FOR BEDDING MATERIAL, 2000 PS M o BEARING CAP BENEATH COl HOWEVER LOCAL SOILS AND ON SITE SOILS MAY NOT BE SUITABLE FOR BEARING capAClTr SEE BMP SECTION fOR SIZING DATA BENEarH coLCaR APPROVED
0 WETLAND PLANTS, PRIOR TO INSTALLATION OF BEDDWG SOIL,.
N LANDSCAPE CONTRACTOR SHALL SEND SOIL SAMPLES FROM SELECTED TYPICAL ANTI-SEEP COLLAR TOWN OF GARY
o SOURCE TO EITHER NCRS OR THE NC STATE AGRICULTURAL EXTENSION NtS APProved by' Date.
o FOR SOIL ANALYSIS. ~i,.....:..., n.,+a
U ~ I DO NOT PLANT AT OR NEAR RISER STRUCTURE DRAW DOWN DEVICES.
3. ALL PLANTS TO BE IRRIGATED. 0 CL Engineering Dote
Y
a i
0 a co No. ReVISIOn Date B Designer Scale.
" REVIEW COMMENTS 01/31/08 CJJ HCF 1" = 30' STORMWATEI 1 TOC 1st 2 TOC 2nd REVIEW COMMENTS 03/13/08 CJJ Drawn By Date VATER MANAGEMENT, PLAN Sheet No.
00 BRADFORD 1NITH ERS RAVEN EL
" 3 MYLAR SUBMITTAL 05/08/08 PMO CJJ LAW 11/08/07 ENGINEERS I PLANNERS I SURVEYORS C6•1
o Checked By Job No. (BMP#2) 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withergravenel.com
o W&R 2061284.01 CARP WAKE COUNTY NORTH CAROLINA i X

R A IN R SE B S
~ I , / SCREEN ACCESSIBLE THROUGH DOOR
/ / / VENT
I I / / i I ~ ~ / / ~ / NFL SKIMMER IS TO BE A SURFACE
t I f / / / ! I DEWATERING DEVICE SUCH AS BMP
/ / ! / ~ ~ ~ RCP RISER I / 'S I I ~ / / SKIMMER OR APPROVED DEVCE,
~ 1 1 I ~ l , 1 MIN, ~ REEBOARD :EBOARD TOP OF DAM
I ~ I( 1 J 1 i WATER LEVEL DURING .STORM
1 1 1 1 J I J TRASH H00 I / I
I / / I - - I=1 11= I - / ~ J I -1 - i :I I ~-1 I I,, ~ I
/ / J I- I I_I I w I I ~ I j ~ ~-I I = -
/ i I I-III= - PEAK FLOW ATTENUATION POOL I. :II
II , I I ,I I I_ _ - ' -11 FLOAT FLEXIBLE JOINT
/ ~ / ' I I 11.1=-_ _ t I _I I 1=1 ! ~ I- - MINIMUM SLOPE 3:1 (RADIATOR HOSE)
I ~ I II_III_ _ - I- / ~ ~ I I=111= _ -I I .111_1 - VIII
I I ` I -III- - - - - J \ ~ .III-I I I_= - I I_I ~ _ ~I I OUTLET END: CONNECTION
' I J ~ I =1 - - I - - 11 ~ I ~ ~ t - ~ '1=-...n• _ - _ _ EARTH DAM TO OUTLET PIPE OR RISER BARREL PIPE LONGER THAN SHOWN.
III-~ , I NOT INCLUDED WITH SKIMMER SUPPLIED BY USER.
RS 452 J ~ ~ ~-III-I I ~ I-~ ~ I i J J I = - - ~_I =1 I I-1 11=1 I I-i I I- 1== _ - I I-11 ~ I•I I I
J ~ ~ ~ _ -1 I II I I-I I 1=III-11 III=111= - , \ JB 451 APPROXIMATELY 950 LF _ - RIP RAP :I~I-= DISSIPATOR
J J '_I ~ I=III-1 I I-I ANTI-FLOATATION DEVICE - FROM HW 450 TO STREAM _ll _ -IIL,,IIIi~IIIIII.II-= -
T ~ I„-,I ~ I ~ HW 450 ~ II -II11~1I~~ = ~ _
lJ / v J J J ~ ~ I I \ ANTI-SEEP COLLAR III-1 I I_I I __I
i'- / / ~ ` i rJ I VIII =IIL,,,ILI,,,I~I„ DETAIL No.
l J I / I OUTLET PIPE STANDARD SKIMMER DETAIL 04000.18 T PIPE ar~cTlvE:o~rouoa ~~,ov,
1 I / l ~ I
_I I I I ~ I
I I J I 1 I I I I I
I I I I I CROSS SECTION I I i I l
1 I I I / I I ( I NTS I I I I
I i I I III I I )
I J I I I i V I I I x
I ! I / I
f I, / , ~'i

GRAPHIC SCALE
30 0 15 30 60
WET POND
1 inch = 30 ft,
DIMENSIONS ELEV.
T P F DAM )P OF DAM WIDTH 1~' 35"8..00
0 0
ANTI-SEEP C JTI-SEEP COLLAR 48" x 48" N/A
TOP OF SPIL )P OF SPILLWAY N/A N/A .
TOP OF ANTI )P OF ANTI-FLOATATION 7' x 7' x 3' 347.00
TOP OF RISE )P OF RISER. 4' x 4' BOX 355.25
4 REBAR 12" - ATTENUATION /E O.C. EACH WAY 1/2" PREFORMED JOINT - fTENUATION WEIR 2' WIDE WE{R 355.10
F~LLER; 12" wiDE DRAW DOWN ZAW DOWN DEVICE a° DIP W/ 2.0" ORIFICE 353.00
T PIPE OUTLE JTLET- PIPE INVERT UP 24" RCP 347.50
OUTLET PIPE JTLET PIPE INVERT DOWN 24" RCP 347.33
SLAB TOP (OPEN ALL 4 SIDES) TRASH RACK ;ASH RACK SLAB TOP -
: ; 8.. MIN.
TOP OF RISER=355,25- ~ - -
PRECAST REINFORCED BOX
8" ~JJ 6" THICK SIDEWALL (MIN)
WEIR=355.1.0
ELEVATION SECTION
2000 PSF MIN.
aEAR~NG cAPACIrr SEE BMP SECTION FOR SIZING DATA
BENEATH COLLAR 2.0' WIDE WEIR (ONE SIDE ONLY) 1/4"x 2""STEEL STRAP W/ 2 - 3/4 ANCHOR BOLTS
TYPICAL ANTI-SEEP COLLAR z srRAPS REO'D
NTS 'O-RING' JOINT '0-RING' JOINT ,
90' EL60W , ti.~
- ~ I DRAW DOWN DEVICE 4"x4" TEE
J (4' DIP W/ MECHANICAL JOINT FITTINGS) I
°o WET POND POOL=353.00 1 i 0
r NOTE; ~ ~~~L ~
a PLACE STEM SUPPORTS I A T 3' O.C. 2.0" ORIFICE ~ MAY g t,
~ /
~ \ •NOTE: N ~ \ / TRHA N °NOTE: OEWR•WATEw, THE KOR-N-SEAL II CONNECTOR HAS BEEN DSAN~S ~~;r~t;rp .
N ~ THE KOR N SEAL II CONNEC 0 S BEE 1 APPROVED AS AN ALTERNATIVE TO THE A-LOK - 2.0' WIDE WE R \ APPROVED AS AN ALTERNATIVE TO THE A-LOK T
ABOVE BOTTOM DRAIN \ NEOPRENE GA5KET FOR THIS PROJECT, THE ~ ( MANHOLE ° & DRAW DOWN 4 DIP NOT CONNECTED i0 VALVE ~ CONTRACTOR SHALL ENSURE THAI AWATER-TIGHT T 4" DIP ~ NEOPRENE GASKET FOR THIS PROJECT, THE CONTRACTOR SHALL ENSURE THAT AWATER-TIGHT
N ) SEE DRAW DOWN SECTION 8-B ~ HI A Y TH R ( ) CONNECTION/INTERFACE IS AC EYED. N 0 E CONNECTION/INTERFACE 15 ACHIEVED. ANY OTHER ALTERNATIVE TO THE A-LOK NEOPRENE GASKET
of \ ALTERNATIVE TO THE A-LOK NEOPRENE GASKET o - ~ ~ ~ SHALL BE APPROVED BY THE ENGINEER AND BY THE 'HE SHALL BE APPROVED BY THE ENGINEER AND BY THE
r \ \ o \ \ \ TOWN OF CARY PRIOR TO INSTALLATION. ~ '0-RING' GASKETED "i• \ \ \ DRAW DOWN DEVICE / / / TOWN OF CARY PRIOR TO INSTALLATION.
IRP o CLASS II C \ \ \ \ v 24" DIAMETER \ \ \ \ ~
~ ~ ~ ~ ~ sj; GROUT EACH SIDE GROUT EACH SIDE ~
I - \4" NRS GATE VALVE a..
rn / v i(SET IN GROUT) I I ° 4" NRS ii M RAIN / / ~ ~ I I JOINT SEALED WITH A-LOK NEOPRENE I I JOINT SEALED WITH A-LOK NEOPRENE oo O~ °°°o°°oe°pD~/boo i I GASKET (OR APPROVED EQUAL)° ,o°~,e°°oFESSrpN °°y.9ooo
BOTTOM DRAIN BO 0 D \ \ \ ~ ry' \ \ ~ ~ ~ I I GASKET (OR APPROVED EQUAL) GATE VALVE ATTACH TEMPORARY SKIMMER \ \ \ \ \ ~ _ ~ ~ ~ ~j ~ I I CASs IN MANHOLE WALL - - INV.-347.50 ~ ~ ~ ~ / ~ I I I CASs IN MANHOLE WALL o e Q~ °°e n~_9 I I ° L a ~ I
\ \ \ \ \ e A A \ \ \ \ r \ \ I I '0-RING' GASKETED CLASS III RCP i I '0-RING' GASKETED CLASS III RCP ,
\ \ \ \ \ \ ~ _ I I 24" DIAMETER I I I INV.=347,50 I f 24" DIAMETER ~ 90' ELBOW i i~INU=347,50 269 ° °
POND BOTTOM=347.50 I I (SET IN GROUT) I t ~ e
a / I I PPRr ~ ~ / / f / ! / / / / % STEM SU 0 \ \ \ \ \ \ \ \ \ \ \ \r \ AVED INVERT ;~i~.• GRDUi 6° FAVED INVERT ?`•;.a,GROUT 6" 11 00~~, o°o°°o°~~f`oooo
\\\\\\\,r i, ~ • B.l... ~ e e,.v . ,I I a O~OeY00000004 '000
,n \ \ \ \ r p ....'1' • ' ~ ~•:a • ' • • ' 1u : • • TOP OF ANTI-FLOATADON •p t 1 ' " e• • " a • • M . ~ TOP OF ANTI-FLOATATION
° RISER PLAN VIEW \ \ \ ~ , < . r ~ ~4. . - .;a INV.=347.00 „ . ~ a.. • ~ ' v t e , vv ,v.e v; ° INV, 347.DD - _ a q ~ ~ a , . 07-SP-114
\ ~ ~ ; a a
o APPROVED
a TOWN OF CARY
N CTION A-A N RISER & DRAW DOW SE DRAY DOWN- SECTION B-6
0 Nrs NTS - APProved by Date
Dlnnn:nn Iln}A
Q
u o Engineering Date
CL Y
0 EL i
0
° to No. Date B Designer Scale N Revision „ CJJ HCF i = 30' SATER MANAGEMENT PLAN Sheet No.
1 TOC 1st REVIEW COMMENTS 01/31/08 STORMWATE1 2 TOC 2nd REVIEW COMMENTS 03/13/08 CJJ Drawn By Date RAVENEL WITHERS
BRADFORD MYLAR SUBMITTAL 05/08 08 PMO CJJ LAW 11 08/07 3 / ENGINEERS I PLANNERS I SURVEYORS C6•2
Checked By Job No. (BMP#3) 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withersravenel.com
NORTH CAROLINA ° R 61284,01 GARY WAKE COUNTY o W& 20
X

t
e I l l ~ , I ..v. ~ i NOTE;
I II \ 1J ~ Vii`=;_ I _ I I I I ( ~ / ~ ~ l~ rl ° _ SEE RISER BASIN DETAIL & SKIMMER
NOTE: POREBAY TO BE INSTALLED AFTER COMPLETION OF G
I l I \ . , 1 1,! GRADMG & RETAININI> WALLS AND AFTER CONVERSION OF 0.00% SLOPE ON TOP OF DETAIL O N SHEET C 6.0. BMP FROM EROSION CONTROL DEVICE TO WET POND• GUTTER (FLAT SLOPE)
Ill /ice ~ \ / / i l • ~ r~ w SEE PLAN FOR LEVEL
ILI / \ \ I ~ / / / ~ 3, SPREADER LENGTH
I LEVEL SPREADER LIP ELEVATION= 4"-6" HIGHER E%ISTING SLOPE ON
24" CURB & GUTTER (3,OD0 DOWNSTREAM SIDE '0-RING' GASKETED PIPE FROM BYPASS STRUCTURE P51 MIN COMPRESSIVE pIFFUSED FLOW CLASS III RCP
_ STRENGTH) THROUGH BUFFER '0-RING' GASKETED 42° DIAMETER CLASS Ill RCP 70 STREAM
o DRAINAGE .EASEMENT ~ ' \ , ' 24" DIAMETER
j W FLOW FROM ENTRY FEATURE \ ° 3'-0" ~
~ ~ . 1NSTRLL CLASS B RIP RAP X57 WASHED STONE - ~ ~ _ COMPACTED 4" THICK MI FROM OUTLET TO BOTTOM ( N)
~ ` ~ i' ; OF FOREBAY 18" MIN SUBGRADE PERMANENT GEOTEXTILE UNDERLINER . DEPTH, 3' WIDE WITH
GEOTE%TILE LINER
NOTE: FOREBAY NOT REQUIRED DUE TO LOW WEIR WALL
\ ~ FLOW FROM DRAWDOWN ORIFICE
~ ! ~ ~~'a TYPICAL FOREBAY/LEVEL SPREADER DETAfL
i i ~ ~
\ ~ ~ ! ~ NOTE
'0-RING' GASKETED _ ~ ~ ii//,~/DRAINAGE EASEMENT
O ~ ~ . _ _ / CLASS fll RCP , ~O \ ~ % ~ ~ % 54" (MIN.) LD• JUNCTION BOX 42" DIAMETER -.-LEVEL SPREADER
~ , \ ~ \1 /%//`/'r ~ F OR EB A Y FLOW FROM BMP #2 (SEE NOTE) ~ ~ ~ - ~15\' LEVEL SPREADER
~ \ SPUTTER BOX (JB 431). PLAN .VIEW
, - - s' ` \ \ `I I (FLOW BYPASS STRUCTURE)
~ ~ \ , - ~ ` ~~l~Ir~ \ ~ NTS
-'C' ~ 1 1 ° NOTE; ` , ~ \ ~ ~ ° ° I ~ ~ , 6° DIP SHALL 8E CAPPED UNTIL AFTER ENTRY
~ ~ Imo- / ~ '0-RING' GASKETED FEATURE &BMP /j2 ARE CONVERTED FROM
J ~ ' _ _ ~ ~ - ~ ~ ~ , j r _ I ~ CLASS 111 RCP EROSION CONTR01 DEVICES TO WEi PONDS ~ _ \ - - - _ \ 1 ~ I I I 24" DIAMETER.
I I RS 440 - ~ ~ - ~ \ ~ \ - , ~ \ ' ~ - - - - - ( ) I I I `~~`1 FLOW FROM ENTRY FEATURE
1 - - r ~
i ~ _e.- - - _ ~ ; ~ , - 1 - \ ~ \ ~ I ! \ 0''~ - \ \ ~ ~ / J/ I '0-RING' GASKETEDI I
~ , \ ~ ~ ~ I I ~ I / J ~ \ ~ \ CLASS tll RCP ~ ~ 6" DIP TO ~ - - ~ _ _ I I ~ / / ~ ~ 42" DIAMETER I I LEVEL SPREADER I I
I - \ 1 - _ - - - ~ ~ I' \ / ~ \ ~ I T (SEE NOTE) I I '0-RING' GASKETED CLASS 111 RCP - ~ \ ~ .r~- I-,~- i / ~ \ I I I I 42" DIAMETER
I III / I - - - ~ \ ~ ~ / - ~ ~ ~ I / ~ ~ \ I I WEIR WALL ~ - ~ ~ ~ ~ , ~ \ FLOW FROM 8MP y2 i i r ~ (8" WIDTH)I f
r / ~ \ \ I i I I , I I i0 HW 430
r - I I I I i i ~ ~ I I ~ I
f, ~ ~ i I ~ 12" i j fNV.=330.25 ~ ~ \ / I
\ - -
I i ~ - \a /
/ ~ d - -r / J.--
~ y - \ \ 1 I ~
/ ~ ~ ~ 1 ~ ~ ` ~ ~ ; - ~ SPUTTER: BOX (JB 431) SECTION
\ II ~ \ ~ 1 ~ t i / ' ~r - ~ ~ (FLOW. BYPASS STRUCTURE)
_ 1 ~ ~ ~ O NTS
11 ~ ill, - ,
cR>~P~ic scA~E WET P ON D
30 0 c`15` 30 60 F r'
~ fnc6 = 3ofr: DIMENSIONS ELEV.
ToP DF REralNlrlc wau=s3s•DO TOP OF DAM WIDTH RETAINING WALL 336.,00
ANTI-SEEP COLLAR 48° x 48" N/A
~4 REBAR 12" : - _ TOP 'OF SPILLWAY N/A N/A
O.C. EACH WAY 1 2" PREFORMED JOINT / " TOP OF ANTI-FLOATATION 7' x 7' x 3' 330.50
. FILLER, 12 WIDE TOP OF RISER 5' x 5' BOX 334.67
;I,,I. SLAB TOP SLAB i0P (OPEN ALL 4 SIDES} (OPEN. ALk 4 SIDES} DRAW .DOWN DEVICE 4" DIP W/ 2.0" ORIFICE 333.00.

OUTLET PIPE INVERT UP 24" RCP 331.00
811 MIN. 81' MIN. 70P OF RISER=334.67 OUTLET PIPE. INVERT DOWN 24" RCP 330.60 _ toP of RISER=334.67 TRASH RACK SLAB TOP
. j PRECAST REINFORCED BOX PRECAST REINFORCED BOX
6" THICK SIDEWALL MIN ~ 6" THICK SIDEWALL (MIN) ( )
8" /RETAINING WALL
ELEVATION SECTION _ 1/4"x 2" STEEL STRAP W/ i/4"z 2° STEEL STRAP W/
P F MIN. 2 - 3/4" ANCHOR BOLTS : 2 - 3/4° ANCHOR 80LTS 2000 S ~RE7AINlNG WALL Q
BEARING CAPACITY SEE EMP SECTION FOR SIZING- DATA 2 STRAPS. REO'D 2 STRAPS REQ'D
BENEATH COLLAR '0-RING' JOINT '0. 0 o _ , '0-RING' JOINT MAY- 9 2ao8
o TYPICAL ANT! SEEP COLLAR 8Q' L'GDOW DENR=WAi'EH4U~1`I"r
a NTS a 4"x4" TEE ~ DRAW DOWN DEVICE YMETIANDSANDSTORpgyyAT~g
I I. " I WET POND.POOL=33,3.00 (Q DIP W/ MECHANICAL I I I BOTTOM OF RETAINING. Fi~ACL=333.OD I I I -JOINT FITTINGS)
4" DIP 4x4 TEE _ WET POND POOL=33300. I
~ NOTE: NOTE: ~ THE KOR-N-SEAL 11 CONNECTOR HAS BEEN PLACE STEM SUPPOR75
n APPROVED AS AN ALTERNATIVE TO THE A-LOK Ai 3' O.C. NEOPRENE GASKET FOR-THIS PROJECT. THE 2,0" ORIFICE
0 8 C CONTRACTOR SHALL ENSURE THAT AWATER-TIGHT NOTE 4" DIP NOT CONNECTED TO VALVE
N CONNECTION/INTERFACE IS ACHIEVED. ANY OTHER PLACE STEM SUPPORTS MANHOLE ALTERNATIVE TO THE A-LOK NEOPRENE GASKET AT 3 O.C. (SEE DRAW DOWN SECTION C-C) -
o SHALL BE APPROVED BY THE ENGINEER-AND BY THE
c TOWN OF CARY PRIOR TO INSTALLATION.
o A A 'O-RING' GASKETED a F ' S~~~ (SET IN GROUT) 24 DIAMETER 'O-RING' GASKETED CLASS III RCP
" EO 90' ELBOW CLASS Ili RCP 24" DIAMETER
I ~ G RGP (BEYOND} (9EYOND) Qooooooaoocoaoo
v 4 N S - O Pg `p!1' GROUT EACH SIDE "i GATE VALVE G~~ 0 4" NRS GATE VALVE oe°°°'~N oCAI~ °0oa
Zk .;:a i (SET.1N GROUT) D I n
N vfJ. `o 4" NRS GATE bALVE o ~
t I {SET IN GROUT) JOIN7 SEALED W17H A-LOK NEOPRENE I I I
~ GA5KE7 (OR APPROVED EQUAL)t I 1 o CAST IN MANHOLE WALL I I BOTTOM DRAIN o v~41 0 0° ATTACH TEMPORARY SKIMMER : ~ ~PQROV~~
~ STEM SUPPORT I '0-RING' GASKETED CLAS5.111 RCP - i I I INV.=331,00 ~oyGo°°o ~NC I NE~'~o°°°o Q~~~o 0 °ooy~' °°°oeo°oooe ~~o°o
0 24" DIAMETER - ~ I I I I INV.-33L00 I ! I I I I POND BOTTOM=331A0 (SET~N GROUT) oaa~~~oaoooaoo R ~~°oo
~ I I o I I I I I I
I I I I RETAINING WALL i ~ I I I 1 6" GROUT::,. PAVED INVERT PAVED INVERT PAVE/N~/R~j
a ° • 07-SP-114
o BOTTOM DRAIN DRAW DOWN DEVICE r' e . d• ~ s C .a d 'a d1 I ~ d' '.1 1'. a' a ..e°1 h ° ' c TOP OF ANTI-FLOATATION , ~ a.. • '4. .d' I 70P OF ANTE-FLOATATION d u • ~ ' e u u . a,~ , o d ~ ..,,u ; 4 : APPROVED I d p
INV.-330.50 ; " • ''~I ° M INV.=330.50 •a a' ?a ~ ~ ~..e ~ a .d: •a a a . _a... TOWN OF CARY
B G a " a 0 ° ~m A ~ G • L
~ DICCD DI AAl tIICIAI npAw nnlainl cl-rrlnnl r_r APProved by Date
C.3 1%1JL11 I L/IIV VILPP vl+nrr uvrrrv JI_l/11V1Y v v Planning Uate
RISER DRAW DOWN `SECTION A-A RISER & DRAW DOWN SECTION. 8-8 0 Nrs & D a CTION. B-6 NTS Engineering Date
NTS NTS a NTS
a i
0 00 N No. Revision Date B Designer Scaie
p w 1 TOC 1st REVIEW COMMENTS 01/31/08 CJJ HCF 1 = 30 STORMWATE 0 DATER MANAGEMENT PLAN Sheet No. .,..WITHERS RAVEN EL
2 TOC 2nd REVIEW COMMENTS 03/13/08 CJJ Drawn By Date 00 BRADFORD
3 MYLAR SUBMITTAL 05/08/08 PMO CJJ LAW 11/08/07 ENGINEERS I PLANNERS I SURVEYORS C6•
hecked By Job No. I C o EW ENTRY FEATURE 111 MacKenan Drive Cary, North Carolina 27511 tel; 919-469.3340 fax. [phone] www,withersravenel.com
w&R 20612e4.01 E Y WAKE COUNTY NORTH CAROLINA Y