20020831 Ver 2_Stormwater Site Plans_20080201

\ ~ - EROSION CONTROL NOTES
(1) ENSURECALL SEDIMENTOIIS DIRECTED INTO EROSCON CONIROLEMEASURES. (14) WITHC3/4 HIGH LETTERNGHAtI BE STAMPED "DRAINS TO RIVER"
w NOTE; a
EACH LOT SHALL HAVE AN ENTRANCE PIPE WITH PIPE WITH (2) ALL CATCH BASINS SHALL BE PROTECTED PER TOC STD. 04000.14 UNLESS (15) ALL CUT AND FILE. SLOPES SHALL BE STABIUZED WITHIN 15 DAYS OF
A HEADWALL AS SHOWN IN DETAIL ON SHEET 9. SHEET 9. NOTED OTHERWISE. THE COPdPLET10N OF ANY PHASE OF GRADING.
~ ~ ESE PIPES SHALL BE ELEVATED SUCH AS DRAI • ~ TH H AS DRAINAGE (3) CONTRACTOR SHALL VERIFY LOCATION OF ALL EXiS11N^v U1IUTIES PRIOR (i6) ALL STREETS ADJACENT TO THE PROJECT SHALL BE KEEP CLEAN AT
FROM ROADWAY SHALL NOT BE ALLOWED TO RUN , I ~D TO RUN TO BEGINNING CONSTRUCTION. LOCAIION OF EY,ISTiNG UT1U11ES SHOWN ALL T1Me.S dR A WASH STATiON WILL BE REQUIRED, IS BASED ON BEST AVAILABLE INFORMATION BUT CAN BE CON5IDEREp
. ! DOWN THE DRIVEWAY. ONLY AS APPROXIMATE. (17) THE PROJECT MEE75 ALL REQUIREMENTS RELATIVE TO BEST MANAGEMENT PRACi1CES AND ENGINEERED STORMWAIER CONTROL STRUCTURES A5
o ~ (4} DENUDED AREA = 9,8 ACRES OUTLINED IN THE TOWN OF CARP LAND DEVELOPMENT ORDINANCE
CHAPTER 7, PART 3.7,
I I ; w I (5) TOPOGRAPHIC INFORMATION FROM SURVEY BY WITHERS & RAVENEL. (1$) WETLANDS DELINEATED BY 501E & ENVIRONMENTAL CONSULTANTS. ,
s 100 YEAR j ~ (6) CONTRACTOR SHALL ENSURE GRADING OPERATION IS CONDUCTED iN A (19) DELINEATED WETLAND AREAS SHALL NOT BE CLEARED, DRAINED, OR
I • • • FLOOD LINE ~ 1 1 I I MANNER THAT DOES NOT ALLOW ANY SEDIMENT !NTO CREEKS. OTHER>rASE DI5IURBED UNLESS SPECIFICALLY PERMITTED BY THE U.S. ARMY CORPS OF ENGINEERS AND NCDENR.
• I ~ (7} ALL STORM DRAINAGE PIPE SHALL BE PROTECTED DURING CONSTRUCTION
IN ACCORDANCE WITH TOC STD. DETAIL 04000.12. (20) RISER STRUCTURES MUST BE ON 51TE PRIOR TO ISSUANCE OF A GRADING PERMIT.
- ~ ~ / ~ ; 0 YEAR ~ ~ - , (8) CONTRACTOR SHALL PROVIDE RIP RAP LINED TAIL DITCHS AT THE STORM
LIN ~ - DRAINAGE PiPE DISCHARGE POINTS AS REQUIRED TO ENSURE POSIi1VE (21} CUT AND FlLL SLOPES THAT ARE (2:1) OR GREATER SHALL BE STABIUZED
DRAINAGE. 11TH PERMANENT SLOPE RETENTION DEVICES OR A SUITABLE COMBINAl10N OF PLPNIINGS AND RETENTION DEVICES. SLOPES GREATER THAN 11iREE
- m ~ I: ~ ' i N ; f; (9) 5EDlMENT BASINS SHALL BE KEEP OUT OF WETLAND AREAS. TO ONE (3:1) SHALL NOT BE STABIUZED W1TH TURF GRASS BUT MUST BE STABIUZED WITH VEGETATION THAT REQUIRES MINIMAL MAINTENANCE,
t~ ~ \ _ ~ ~ i (10) A PRECONSTRUCRON MEETING MAY BE REQUIRED FOR THIS CONSTRUCTION. WEEPING LOVE GRASS, RED FESCUE OR OTHER APPROVED VARIETY.
y _ ~ ( ! ~l (11) PERMANENT GROUND COVER SHALL BE ESTABLISHED EITHER iN 15 WORKING (CHAPTER 7, PART 2, 5EC110N 4, (G) lD0).
DAYS OR 90 CALENDAR GAYS, WHICHEVER IS SHORTER, PER TOWN OF CARY {22) EACH LOT IS TO BE CLEARED INDIVIDUALLY. IF MULTIPLE LOTS ARE CLEARED REQUIREMENTS, AF1ER CONSTRUCTION iS COMPLETE, SIMULTANEOUSLY AND 1HE COMBINED DENUDED AREA IS OVER 12,000 SO FT
~ - t,_ 10 YEAR r
~ , ( FL~ D LINE , (12} TOPSOIL SHALL BE WASTED OFFSITE OR IN FILL AREAS AS SHOWN. AN EROSION CONTROL PLAN WILL HAVE TO BE SUBMITTED BEFORE THIS CLEARING BEGINS UNLESS INCLUDED AS PART OF THESE PLANS.
w ro - f Z f ~1~ , (13) TREE PROTEC110N FENCING SHAM BE INSTALLED AND INSPECTtT) PRIOR (23) CONTRACTOR SHALL VERIFY APPLICABLE USACOE AND NCDENR-OWQ PERMITS
_ TO ISSUANCE OF A GRADING PERMIT. FENCING SHALL NOT BE REQUIRED ARE IN HAND PRIDR TO DISTURBANCE OF THESE AREAS.
ADJACENT TO AP,EAS WITHOUT WOODED VEGETAl10N. ( • (,24) LEVEL SPREADERS MUST HAVE ACCESS AND MAINTENANCE EASEMENTS
- Z Cdr ` ` - - - ~ ~ _ ^ AROUNU THEM, AND INCLUDE AN OPERAiiONS ANp MAINTENANCE MANUAL
' ~ ~ ~`-"'-.a•^c ~ ~ N`_.-__ - ------360_'-- J 2 ~ _ J ? \ ~ AND MAINTENANCE AGREEMENT.
"0 _ J~:, o (25) STREAPd BUFFERS SHALL BE PRCIECIED WITH TREE FENCING.
Tai ~~.~.c ~ ~~^~c~- - ~,x_ J,:,,:~ ? - _~p:.. ~Y, \ r 'N r' 2fi MAXiMI)M IMPERVIOUS AREA ON AE1 L07S SHALL BE 4,000 SF.
-1 11 urea. '''4*t t~_ / 1- sh 7" ~ - - - '`~-1_ I \ \ arc yll .:P - - - -J ~ 2 (27} STORM WATER DISCHARGES INTO MIDDLE CREEK TRIBUTARY.
~,.o..~~._~ ~ -.~,i;l m: 'n.._ A~N ~IV°- ..Zr~ I,i~'~rn,.r F,; - - - N O ~ ~ ~ 1.~.-iG~ mss, ~1., ~ ~r°~ -i_ a~ ,C,I ~1` \~~1 - - _ -,I ( } ~ ~ (28) T0~ AL ESTIMATED Oi -SITE IMPER~ US SURFACE: 4.89 AC.
XR001 - N ~:`~3) - ;yr IJ%: - -~'r~~rt!1t , 4 1. ` - \ I m AX/' v ~s, I
RESTER LANE - - ~ - r ~I, ~ 1 ±F 2zo
. ti o ~ i 1 ~ I
_ _ - J , _ _
a ;Ip-{.~ \ - - \ 36, - mr~ _ -
` - --ate ~ ~ _ ( ` s. I ~
_ . _ _ \ ~ ' Ni 00'2359" E I ` \ 100 YEAR ~ ~r,3s' I
_ _ C - - - - D' - I - ^ , ~ ~ FLOOD LINE z ~
O yy Cry GJ max. ...`..,.c ~ - ~ ~o , ` t
~ ,
/ . r.. o- _V ~ I ::nom ~ ~~"t, ~ ~ b o0~ Of a~N J'1.,ti,J_ _ I J~` ~~'r ~l S 3~ 0 ,rp
` \ ` ~ ` 'TI --F3~ O I O 1 ~ O
~ -365 \ D;< mN / -D'O- ~R ~ ~
N 02'3 ' "I t J -•Tl w < f 224.SJ' ~ i . TIE-1'~ - N 31' ~ ~ f. off. 1,.'' \ , , t'1 60' ~ ~ ~
s EXISTING C,J '1` ~ _ ~ , ~ , ~ yy a 20' TARE 'B' IANQSCAF kSEMENT / ~ ` ~ \ ~ ~'t B ~ Eo cn w
~ - ~ . , , , ,
I•`` t''~ • ~ ~ ~ ~ NOTE:
I ~ ~ ~ ~ 1m v ~ t I I r ~ ~ ~ V A \ ~ C ~ I `I I ~I /i ~ I ' `ass v, ~ N ~ ~ DITCH~SWALES WILL BE ADDED TO
.Ih D 1 Irn~.~ cD ~•m CO 1 \ ~m ~ ...I\ n-~. ~xN t i oaf ~ I ~ I ~ I ~ ~ I' ' i a ~ w \ ' ` ~ ~ \1~` ~ , ~ 002359• w ~4.Or' UPHILL SiDE OF TRAIL, DIRECTING
I• ~ , \ am_, ~7 rv D' c~ I aDN ~ n;O 6 , oo !il' ,~s \ / rc,,i ~ I/i , ba I rn1n;~ aX~L, I 'rX- maw W ~ 1 rn.vo,Ul ~ t y' o I ~ I I i' ~ I ~ ~ 1 ~ ~ ~ ~ WATER TO CULVERTS.
rl I '-ITf 5 \\C ~ ~ ~ m Q ~ 1 A - C~ m 3 W~~ _t ~ o a \i 1~: - \ ~ \ , 1
\`r' ~I' ti D V7 ~`TI ~ .1 I O ~ ~ m v \1 W ~ ~1 A m r~r11 (j~ ~ _ o O / A'~ IiiC~~" y \ \?I~1 ~1 _ ~ E. , r,:Z7a.` '17 . ~ ~ O s A m h. I a iJ+ O i ~l X. \'t 9 ~ ' _ V ( ~ ~ ~ ~,~y ~ ~-'-r'
I ~ ~ oo aG o - o~-- 8s'. I D' ~ ~ 4 ~ ` `WETLANDS ~ \ \~(t. ~ y NW, ~ , t ~ . \ .
QUO Q ' ~ \ ~ ~ \
• ~ -
a ~ ~ ~ I, c 3 ~ \ ` '
~ cn + a ~ . = li O , ~I ~~^^y}..~,1' o ~ 3 1. a D ~ CJ
~ 1 1
~ a - 1 \ Am ~ ,~-,~y~o R ~.,''l`,~~~XN~ ~ ~I EROSION CON~KOL LEGEND
T - ; ADS-------- \~Aq D'. ~ ~ 1,~, i9, A• _ - ~ - / / ~ py ~ ~ e I ~ ~ ~ a ~ /~\~,w~~~~ ,~J ~ ~ RIP RAP FlLTER BASIN
~ ~•o~_-, ~ ~ / ~ rug ti ~,~y, goo
Z-3 ~ to I y_' ~ 1 ~ ~ , ~ ~ ~ , "+i ~--~t- SILT FENCE
_ 1 ,ym ze..,zr~\ fd . ` I O_==p0.~ \ C , Ul Ul.~ ~ U ~ \ I - _ _ ' ~t~ ~
~ ~ ~ ~ ~ \ ~ _ _ • / ~ ~ mmy~fi DIVERSION DITGH/BERM
00 -nX~C" ~ AD V~ TJ .I" - - i :..1 J \ ~ OOV1 1 ~ ~ I , ~ UI ~ ~ ~ % l~ ~9! ~ ~ _ _ I ~ ~ ~ CHECK DAM
~ r .;z v 03 . m N - v N ? 9~ ~ ,i , (J ~ /ti ; , `r4 l l ,a~aJ - ~`,S ~ ~ ~ ` I i, ~ i WETLANDS
1 _ ~`sm ~N ~ N~5 I °o - - - _ - ~ v 1 m~ N ~ 'aDfV
:}_,C ~ \ Al , ~ ort u? ' -gym ` in uc, -tl ~ 1 ~ ~ `-AR-x ~ \ ~ A ~ N ~ ` n - CJ1 ` ~k / _ _ `k.~ ~ , z3~Qp ~ ~ fi ~"-~1' ~ '~D5' ~ -tr'- TREE PROTEC110N FENCING
` ~ / J- V,-. 1 ~ ;F-:. mot. D ~ 1 r ' \ os i ~ , m.~ • 2a s , \ = it ~~~-~'r~.-.:}~_ ~ ~i EASE - ~80~!--... m~ ~ (1' ~ ! s. A m ~ .~i , , , \ ~
- . l ~ ~ ~-y---' , ~ / r~-~-~.a CLEARING LIMITS
1,, ,
_ ~ _ _ _ 1 r , ~ , ~ ~z'~Q, TYPE B• ~ ~ ~ \ D x. ~ ~ 114 i \1 \ \
L.~' 5102'703 , 245. -ti.~ - _ - NCSCAPE~' ASEMENT ~ ~ ~DN
, . ~ 30i0b ~ ~ / 025f143 W 1 .64 q9-` ' r ~ _ ~ •l
IYi~
GaAV~c ~ - - a - 4
1 CONSTR~JCTION ~ : ~ _ _ ~ ~ - N
ENTRANCE ~ \ ~o-
STORM DRAINAGE UMMARY 10- R STORM RUNOFF RATES ' ~ ~ - ~
125= a.is I~ N= 0.o125I1~1.w o.009 (wc; PRE- EVELOPMENT: 34.17 CFS ,1 - --~ac~,. I STRUCTI.FFS AREA Irtperaious C Owen Qr~r~. RIM EL , U3~TH IMfERI' 1~4J~T SLOPE a,lr, Q;~c~ vF.ai PipE 41.13 CFS / 1 I rn - _ ~ 1
ocMnl o; o~ tip) c~> , mtal~i~ POST-DEVELOPMENT. + , , Rom Tu (aces) I Area (ac} (cfs) lets) (fl) (fl) - U' 1 .~T~ ` ~ ~ _
~ i l~ - i ~ I , c
_ 28 373.00 37200 3.57°/ iD13 18 11.E gASSNRCPI m 1 '`T-_--- FES t 1 FES 10 0 72 0.52 0.76 4.5 I I r - It 1 '
FE521 FES2t1 1.59 1.11 0.74 9.G - 67 376.00 375.00 td9°/ 15.E 24 9-15 IgA5SNF2q': ~ ~ ~ I 13.6 - 52 373.50 31250 1.92°/ 17.26 2.4 10.39 CLASS N ~ i ~ / rr2 r BASIN ESIGN v
FES 16 FES 15 1.97 1.66 0.84 I - - gggQ~ p~pEp {C(2gJ(~jA(~ BASIN D1NFJ` i I 75 208°i~ 7.51 15 7.91 CIASS N RL? BASIN Din/FJ\iSiONS V~E62 VOLLNI= CLF~VVOUT VCE.LINE SUIRFACE SI.JF•1FACE DEP'M LENGiH VUDTH LENG?H PRG/{DED FF~ECI DARED AFFARE PROJICED
4 35s.2s 354 aJ # AREA AREA DFp11-I LENG11 FES Gt FES C~ 0.?0 0.16 0.62 - 1.5 2 I , , FES d FES 04 I 0.38 0.23 0.67 - 21 - I 24 3.75 35925 2.08% 8.45 15 7.91 QASS N PCP'' j; 3y i' (AC AC ( FT) ~ N'IC'AVTi-S SF1 B
' sw 15 ss6 afss N Rrn ; ~ ~ 1 j i ' ~ ; BlvP #1 3.1 4.9 RYA i rYA i~YA ~i (RYA I N'A I N'A 22,600 ~ 12 5,580 1,433 ~ 7,600
FES41 FES 40 0.34 D.26 0.79 - 22 - 31 373.00 37250 1.61% ~ : - - r;',~ BNPi~2 _ 1.7 I 3.5 i MA ` iWA I NYA ~ PYA ~ N'A ~~A 8,900 ~ 12 3.060 1,024 _~_3,80Q ~ 4 40 20 10 2-~-~-- 12 ~ 2,160 673 800
, 1 18 O.fiO 11.5 t14 370.50 3b"9.35 i.01 % 18.34 2a 7.53 BASS N R(P' r ~ ~ `J FBA 1.2 2,3 4 40 FES 86 J9 854 2.33 - - JB 65A FES 85 - 11.5 372 27 369,15 369.00 0.56°.6 20.51 24 5.58 C1ASS N RiP I r I J '
'SE;: Sf£ET 6 FoR BfvtP#I AM BvPtl2 WSER/BARREL Q+1TA , , r . ~ '',1 NOTES:1' CF FREEB04F~ IS F'RU/IDED FCR EACH BASIN. ~H BASIN.
" I V SURrACE AREA IS BASED CN 1,50D SPICES FCR 10 YR-6 H \ r. ;FS FCR 10 YR-6 f-R STCf~IVI 'i
DISSlPATOR DESIGN ,I•
RON OUTLET D. STREAM RIP RAP RIP RAP SIZE ' J INLETI pipEDIA. ~ 1' L.EIIEI. SPREADER DESIGN C~lei c,e~asl Ie~n.h(IFi &~InEI~- p 08 31 Y2
OUTLET# LENGTH WIDTH WIDTH THICKNESS CLASS d50 IINCHES) {FEET (FEE (FEET) (INCHES) {INGHESf r, FES4U U.4fi 10 ' :i71 ••••••••••eu~°q~~~
FES#10 18 10 4 6 22 1 13 FF545 U3 t0 371 ~y CAR ~
FES#11 18 10 4 I 6 22 I 13 FESR15 24 15 6 8 22 I 13 FES 0.13 10 3(x3 `',~•e~o ~n~°°ose°°~ I~~,. FES7U Q3:; 10 3`ti f ~ 8°","+~~,°Y9 ~
FES#15 24 15 6 8 22 I 13 FES"n20 24 15 6 8 22 I ~ 13 t:FSr3~t o.~ iu st;<> `I 8~ SEAL
FES#21 24 15 I 6 I 8 22 I 13
FES#30 18 10 4 6 22 I 13 NOTE: FES#31 18 iD 4 6 I 22 I 13 CARY PR4J! ~ 07-5®-005 ~ a 294s2
s#4o za zo B 12 2z I I 13 REFER TO SHEET 9 FOR UNDERGROUND PIPE FE ;OUND PIPE STORAGE APPROVED '~.9$~,,~i,,,,~,°~•
__FES#45_..........18............,20.....-.. e--..___----1-? ---22 - t3._._. DETAILS FES#60 15 20 B 12 22 I 19 TOWN OF CARY r~ °""°~P~ \ °
FES#70 30 15 6 8 22 I 13 FES#80 24 15 6 8 22 I 13 •
FES#85 24 15 6 B 22 I 13 Approved by~~ date • ~ ~ 6o a sol~~`~'r ~ 120
FES#86 24 15 6 8 22 I 13 FES#G2 15 10 4 6 22 I 13 Plonning_-s~B Date ~ + Engineering- Date I~'~'~ SCALE: 1" = fi0'
FES#G4 15 1 10 1 a 1 n
ALL DISSIPATORS SHALL HAVE FABRIC UNDERLINERS.
Date B Designer Seale No. Revision WITHERS F ~V E N E L Sheet No. 3 LINAGE AND EROSION
A TOC 1st REVIEW COMMENTS 5 25 07 GAS W&R 1"=60' STORM DRAINA( TO 2nd REVIEW COMMENTS 7/12/07 GAS Drawn By Date f
THE PARK AT LANGSTON GAS 1 1 07 4 C TOC 3rd REVIEW COMMENTS 8 30 07 4VDH CONTRWDH 061601 )NTROL PLAN ENGINEERS I PLANNERS I SURVEYORS 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fay: 919.467-6008 wM1Vw.withersravenel.com
D UPDATED STREET NAMES 10/9/07 NJA Checked By lob No.

I I I 1 / 1 ! ~ I ! ! t ! / ! ! / l / ' ~ /
~ I Il Ir I f 1' 1 ~ ! 1 / / / r/ ,f! ~ ~ / ~ / /
~I I I r I I / ' ' ! I X '
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- 1 I ~ r I 1 ! / - ~ / / / , ~ l , l! / / A 1 I r ~ i ~ t
f r 1 , / ! r I! , ! / I . ~ i ! + 1 I / / r . / ! ~I + / , r ! / / / ! / , , , , , i i r
, , I l , r t r / / / / , I \ 145.621 , I ..1 I 1 f .I _..L._ I r
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r I~ ~ ~ ~ ~
/ /mar I / / r ! / 1 ! 1 ' +I' 1 / I / l / ' / J - ~ / ~ / r . r l.. , , ; I 111 r I I / l (~}},,J ~ I / i ! t< r i ~ f r r /
i l / I ~ , 1 I I I I / ,l / r`V / ~ , r' 1 ~ , / l / ~ ! ! ~ r I I 1 1 ! ~ ' I f / ! / l ~ l "r . ~ / / I I ~ l t r I r ~
11 i ~ / 1 ' I f 11 j I Il I 11+ ! / / ' / ? ! r r I r r r r r
r Il J ; I , j ! r + f ,I r I ; ! 1 , ~ I ; / rl I ; I ; ~ ` r / ri N41ES• r st
r I O I+ I I i l 1 i I !r 1 i f tl c / ' I ~ ' ` ' I r 1 t I I I I I Ir r 1 / , l ~ ! I / I r ~ r ~ i 1. L =THE LENGTH OF THE RIPRAP APRON. r r_`i / r
~ i i I I I r + + ~ ~I rl' l / ; J I r ~ 1 ~ ! I / r ~ PLAN t~l$W 2. d = i,5 TIMES THE MA~ldUM STGNE DIAMETER BUT NDT r ~ / r r LESS THAN 6" (inches}.
I I I I 1 1 I I ! I I r r / / ! X 1 f \ t i` / ! I 1 t / I I I I rl I II / / / r I ~ ,j I! / I ~ I I / V t \ I ~ / ! ; Ir I / rr 3. IN AWELL-DEFINED CHANNEL EXTEN6 THE APRON UP THE
I t l ~ I I , I 111 I l r l / r / \ } ! , y ~ I . I I Ir II J / / / , / I I r / ' I ~ i I I I„ 1 ~ t ~ RE r , ~ r r
I . I I, , I ~ Fps o ; , ~r ~ ~ r~r THE MAXIMUM TAILWATER DEPiH OR TO THEnTDP90F THE ~ , ' ~ BANK, WHICHEVER 15 LESS
1 I i 1 I J, I I t! I I I I 1 1 I / l / ! l 1 / i i II / / J / f I I I I 1 11 1~ i 1 1 + ' / 1 1 t / / I f 1 ~ ~ I I ! r I`+~ ! ! O \ 1 ~ i ' i` / it r +r~ I L 4. A FlLtER BLANKET OR FlLTER FABRIC 5HOU1D BE
i I I 1 I ~ l 1 7 I 1 , ~ / r l ~ ~ I I r INSTALLED BE1WEQd THE RIPRAP AND SOIL FOUNDA7IQN, r ~ ~ ~ t PIPE
I 1 I I ! ' ~ I !I r / III , I I / t / . + I i , +I r I ~ _ ~ 1 r ~ 1 I r I 1
I j r ! ! ~ I i I I I + r / / V 11 ! / / 1 ii I
~ ~ d ! i
I i !J I Ally 1 ~ ! ~l I I ~ 1 l I / I J I l r 1 ~ I I 1 1 ~ I I: I 1 I 1 ! r / I l / ! 1 ~ ~
r ! ! r r r r f l 1 1 I ( ! I I y } i ;I I I ! ! ~ is I I !I I ! ! I { }/11 I / I I 1 I 1 j \ I ~ L ~ / ~ / / ~ I
I l 1 ! i t I I Ir I+` 1 r l I ' I I ~ I U I ! / I 1 I r r 1 1 I I t d l I ` 1 ! j ~ 1 I { 1 I l ~ ( ! I / I~ i ~ ~ SECTION `A-Ft' FlLTER FABRIC I I B7 ~I
i ! r g I t t t+ I I I I ` ~ r+ ! I li } r r I ~ ~ 1 r r/I r l I t l I I I I r t+ l y :::I i t l , l 11 ll: I ~ ! I r. I I
I , I 1 1 1 1 i i 1 \ I' 11 r~~' I 1 ~ / 1 1 I I I , , / / / I I 3 I 1 I I I r I I 1 r , T I 1 , I
/ ~ I f 1 ! I I I r l Vl 1 I I ~ I I 1 1 e I I I J 1 1 1 1 11 r ~ I / I ~ r r ~ , It I % .I 1 / f/' i s I I I I I ! A r f 1 /l DETAIL No, h~H ~1A PIPE OUTLET TOWELL-DEFINED CHA:N~TEL [phone]
` r' / I 1 I I 11 f I ~ ~ / , 1 \11 l iIt I ! I/ E-"' 1 / I I i. I j J 85 / , `ti.' ~ ~ 1 I I I I I III i I f I I I t\ r ! /i 1 7 E--~. ~ EFFECTIVE:D7101l04 SFr ~ ~ ~
/ I ~ I i ~ V f' ~
I I , ! 1 , 2~ _ , _ ~ , 11 ! ! ' I I 1 I ! I I ~ / ~ l~~f 1 ! r-:<-~;.''-l-~i;~- y--' 1 f ~I ~ scvmi rccc~e~ f ; o~n ~ ~ ~ ; ` Nun
1 \ r / / / l t I fJ 1/ I I + I , i j I / 1 !rr / + 1 \ 1' ! / ' / i ' I ; ~r 1 ~ S~nuuka uAY VIAL' ~ SUOlI115 Rl110~W
r i { ' /f I I I I I V I I 1 I r l r 1 f / y 1 I: 1 /r r I I I ~ t I i 11 ~ r ! ~~V r ~I ! i / / l i! ,'I ~ ~4 RfBAR 12" r ~ O.C. EACH I'lAY
r l! r r I ~ I ~ I I i 1 i ~ rr. I 1 , , , / / l I. j l rl 1 j , I I I I I 1 1 I II! it 1 1 \j. ~ j ~ _r" . I I' I ' ~"s't 1/2" PREFORMED JO1NT ovnEr as cor~cnoe FILLER, i2" WIDE
` ? ~ m ant[r r~rc oe mat euwa rwc IONOFR txw I I sHOww
1 ! 1 I I , -t- -1- - ' I ' III ' 1 r I , ~ , , . ! _ / / / , 11 1 l I r y I , 4 I I I - + I II f 11 r J 1 r , ~ , r:- ! r ~ II, ~ , Q i rwr Nauom ~mn snuvrn sun er usa I
/ r ! 1 I , I I I -1-.,~ I I I~ , ~ , , , r I i'l ! A 1 : UO r I I I I I I ~ ~ I I I ' I II I~ I ' / l ! ' ~ I I i~~ RQ / r ~ I ~ ` ~-V1fT7BlE JON! I u [ .J j
f r t I I} I I I 1 / T r f ! IYIY 11! / l; / r rr IYI I ' I I I i ' 1 t 1 +f I I ` / i i / r/ i i ill ~ i i f r 1 i I 1 1 I I I ~ } I I ! SKIMMER DETAIL TYPICAL ~
~ ! I ~ I i I I j I } \ I I I I I
I rlI r 1 I I 1 I I I I t I I\'~I I I t ! ` 1 I/ 1 + 1 !f I 111 I I l l l l I~_I ! I f t ~ 1 I I ~ I I I I I I , I I I "I. II 1 r
p II I r! ' I ~ ' -I-- i' `r` -r' -L -L i- ti I ~ 7- i ' I I r " I I I I I I I I 1 ' I I I I , I III i I , i ti I
i I I I I I 11 , I I I j I I r l 1 I I ; ' I I I ! 1 co 1 I `y•
I ! , , , i f , I I II IF / I~ } l l I I I I 1 1 f l I f I I 1 I I I 1 I ! I I I II I 1 , / 1 , I' +~11 / , I ,
+ I ~ I I C~ I I I I 'r'/r' i , I 1 III I + . - - .
+I ~ I i CO fi ' / t I I ' i r' I I 1 I !I I J1 1!, r'~'~~--~` ~ I I I Q I III / I r I 1 r 1 ! / r I 1 I WETLA~1 D ELEUATfON sFCnoN
SCE SCALE 1 3G' I 2DDO Psr= MIN. BEARING cAPACI>r SEE 8MP SECTION FOR SIZING OATA
54 - LIGUSTRUM JAPANICUM @ 5' O.C.-3 GAL. CONT. BENEATH COLLAR
TYPICAL ANTI-SEEP COtL4R
NTs
A ' SC (..E 1 30
SUPPLY HANDWHEEL NUT
f 12" ABOVE TOP OF BOX
r 6" PRECAST CONCRETE L(D
W/ MANHOLE COVER ACCESS
VdEIR CREST t~ ' 0 N ALL FOUR SIDES PRECAST CONCRETE BOX ,
ELEVATION: SEE TABLE
NOTE: ~ 6" MIN,
PLACL JTEM SUPPORTS AT 3' FROM BASE o~
5'x5' CONCRETE 4'x4' CONCPETE WEIR RISER WITH WEIR RISER WITH PERMANENT POOL ~F{RST INCH STORM ORIFICE ~ ~
SLAB TOP SLAB TOP
WATER LEVEL DURING STORM TOP OF DAM EL. 368.0 WATER LEVEL DURING STORM TOP OF DA /TOP OF DAM EL. 373.0 ELEVATION: SEE TABLE A A GROUT EACH SIDE
- _ - 100 YR ELEV = 367.11 - - 100 YR ELEV = ORIFICE OUTLET SEE CHART FOR SIZE d .
-i I 1=1 _ I- l I -i ? ICI I = I I~' 1 00 YR ELEV =372,12 ~ J T EALED WITH A-LOCK NEOPRENE
~ I I-1 I = PEAK FLOW ATTENUATION POOL = ~ I ~-III=III- - PEAK FLOW ATTENUATION POCL = - 6" NRS GATE VALVE- ~ GASKET CAST IN MANHOLE WALL
I_III _ MINIMUM SLOPE 2.5:1 -III-~~1-_ - Mif /MINIMUM SLOPE Z.5 : t ~ '0-RING' GASKETED
~ I I I ~ - = 1= MINIMUM SLOPE 3.: 1 III =III=I I = - I_ I MINIMUM SLOPE 3 : 1 CLASS III RCP
~ ~ =I I l-1 11= ~ I MII I I~ _ - I -I ~ _ I_ I I I~ = I ~ EARTH DAM III -1 I I-I - - 7
_ _ II EA III-III i l1 I ICI I,. _ -1I 1-I! 1=1I I= - I1=11. EARTH DAM ~ BOTTOh4 DR,4lN OUTLET PIPE
~ I -~II--_ I III,,-I I II ~ - -I ~ I-1 I I-~ I _ - I I-
ATTACH SKIMMER - _ - ' I -I , , ; _ - ATTACH SKIMMER -III-"'' =1 11= ~ I I I~ I-u I- I. ~Ii 1= _ ~ I I-I - ' I 1- \\/\\~\\/~~/%,\/\~\~\~/\~j~~~ PAVED INVERT
TO POND DRAIN I - - - - - DISSIPATOR PA TO POND DRAIN 'I - - - ( I ~-I -I 11=1 I I~ I I~ I ~ 1= I- - _I ~ I D I I-i =1 ~ 1=1 I I~ I I=I 11= 1= - - FOR EC PHASE _ - - h I l I - W F FOR EC PHASE - - -III ~ ~ I a., ~ GROUT ~ ~ DISSIPATOR PAD w~%//\/~\ / o' ~ ` ~ • : y I
I~~III-II ,I~I~~I ~ ABRIC LINER _-II=III=711- ~I - - II .III- - ,I~~II~- = ANTI-FLOATATION DEVICE III-,III=11 ~ ANTI-FLOATATION DEVICE III- .III=111_1 = _ W/ FABRIC LINER ~ y
'-1 - , , I I - II,;,I~I-I~ ~ ~1=III=1= - _ .,G ~ • ~ , : 1 8' X 8' CONCRETE FOOTING
I I _ _ 11=III- II X2,500 PSI CONCRETE MIN.)
uha ~~~ONa ANTI-SEEP COLLAR i I I-I (I-I = - , - ANTI-SEEP COLLAR ~ 11= ~~aa~ - sr ~ ~ 11= - _ - III- --i i 1=1 I I_I I i=1
~o _I I ~I i 1,;,I I II-_, BpQZ 88 LF 30° RCP OUTLET PIPE @ O.E% ~~I~i!~!i~~~~~~ ~ RISER 8c DRAW DOWN DEVICE DETAIL
j 76 LF 24" RCP OUTLET PIPE @ 0.6~ 83 r: ~
CROSS SECTION ~ CROSS SECTION N TS
a
DIMENSIONS ELEV. DIMENSIONS ELEV.
NORMAL POOL N/A 365.0 NORMAL POOL N jA 370.5 4" DIA. MJ FLUG O W/ ORIFICE. OR
TOP OF DAM WIDTH 10 ft 368.0 TOP of DAM WIDTH 1a tt 372.0 ANTI-SEEP COLLAR 72" x 72" ~ ANTI-SEEP COLLAR 72" x 72" APPROVED EQUAL NO-fE: SKIMMERS SHALL BE USED ON PONDS DURING
STORM ORIFICE lNV OUT 2" DlA 365.0 STORM ORIFICE 1" DIA 370.5
TOP OF ANTI-FLOATATION 8' x 8' x 2' 361.0 TOP OF ANTI-FLOATATION 6' x 6' x 2' 368.0 SECTI ~N A- A EROSION CONTROL PHASE OF PROJECT
RISER CREST 5'x5' RCB 366.5 RISER CR ST E 4x4 RCB 371.7 OUTLET PIPE INVERT IN 30" RCP 356.0 OUTLET PIPE INVERT IN 24" RCP 369.0 N TS ~~~~~a~~„u,~,~~I
OUTLET PIPE INVERT OUT 30" RCP 355.5 OUTLET PIPE INVERT OUT 24" RCP 368.5 ~H ~aRo
BOTTOM DRAIN 6" Gate Valve 362,25 BOTTOM DRAIN 6" Gate Valve 369.25 CARY PR4J # 07-S6-005
gtl° ~ ~5 APPROVED ~ ~ SEAL = i
TOWN OF CARY ° °
$ 29482 ~ .
Approved by C pa{e 0. ~d"1 ~.,q~°~~1'GIN'~ °$~.e• Planning_-~~R Date 7 '••..~4i ~ I
Engineering--:15_ Date 10-2-5' WITHERS RAV E N E L Sheet No.
No. Revision Date B Designer Scale
A TOC 1st REVIEW COMMENTS 5 25 07 GA W&R 1"=30'
T C 2nd REVIEW COMMENTS 7/12/07 GAS Drawn By Date C TOC 3rd REVIEW COMMENTS 8/30/07._ WDH GAS 1 1 07 THE PARK AT LANGSTON STORMWATER MANAG
D UPDATED STREET NAMES 10/9/07 NJA Checked By job No. NAGEMENT BASIN PLAN ENGINEERS I PLANNERS I SURVEYORS 6
WDH 061601
111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withersravenel.com