20061617 Ver 1_Site Plan_20070912

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- r ~ i~ • ~,..,ti ~ r-- -rte J i'~ LEVEL SPREADER LI 4"-6" HIGHER EXIS DOWNSTREAM SIDE )ER LIP ELEVATION
. f ' ,au•x~ R EXISTING SLOPE ON
f~ .n SIDE
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..~,,.,,,,Y...~ • ,,.i SPREADER LENGTH NGTH
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F SLOPE)
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_ 24" CURB & GUTTER (3,000 PIPE FROM BYPASS STRUCTURE 6' MIN. PSI MIN COMPRESSIVE DIFFUSED FLOW
~~y i THROUGH BUFFER
- STRENGTH)
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> > ~ J 3' 0"
X ~y~, . INSTALL CLASS B RIP
' ! f... _ RAP FROM OUTLET TO VEGE~'ATED COMPACTED SUBGRADE
. r`~ r BOTTOM OF FOREBAY 18" FOREBAY
r, , y,,.r MIN DEPTH. 3' WIDE WITH - _ GEOTEXTILE LINER
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+ ~ r Rp,..~^ ~'~.r #57 WASHED STONE
~ r .r'/ ~ may.- ~ .-..,e.,_,._ 4" THICK (MIN) PERMAMENT GEOTEXTILE
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~ ~ r-- TYPICAL FORE6AY /LEVEL SPREADER DETA )ETAIL
I
a r^""". ~ ~ ~ EARTHEN BERM EMERGENCY SPILLWAY
EL. = 261.00
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\!l~l1 1 /2" G MAX O (SECUL 4 ~ Tw. s' aA r~ w ~R 1/2w GALV. STEEL
DRY DETENTION POND MAX OPENING = 12" HORIZONTAL
(SECULERLY ATTACHED TO CONCRETE RISER)
SCALE: t" = 20'
5' DIA PRECAST RISER
Rr~cmHDWE ~D TOP OF RISER STRUCTURE ELEVIITIQN ~ 215.75
RCP RISER /4 REBVt RING TOP OF MMIHOLE NOTE: RISER PLAC n-n AT 3' NOTE: PLACE STEM SUPPORTS
1' MIN. FREEBOARD /TOP OF WATER LEVEL DURING STORM P OF DAM EL. 261.00 AT 3' FROM BASE
TRASH RACK - GROUT EACH SIDE
i WATER QUALITY POOL ~~-~~~~~.~I ~4 REBAR RING '4 r- ~~?T 3 J.~ ti..~.
E NOTE SPhCING 5EE NOTE FOR SPACING CREATE 0.5' NT ._v OINT SEALED WITH A-LOCK NEOPRENE
59' / MINIMUM SLOPE 2 : 1 59' DEPRESSIq~I AT 4'x2' TAPPED n_n GASK OR1FiCE CAP. SEE DETAtI GASKET CAST IN MANHOLE WALL
~6, i _ 4' D/P
FOREBAY yp~N POND 240 '00-RING GASKET" RCP
;y57 WASHED - ~ TRH STONE 2' t TRASH RACK (ABOVE) OR/~7CE ELEVATfQN ' 257.00 ~-n
. ~ ~ ~ =1 i i- - i Y~ .•y ~ i 4~IP
SEDIMENT POOL pNCXOR 1R.lSH svACm Hor-d )R TR0.SM RACK TO MANHOLE WALL WITH FOUR EQUALLY :D HOT-DIPPED GALVANIZED STEEL CLAMPS. FACH CLAMP 4' NRS GA
ORIFICE DEPRESSION II FILTER FABRIC ATDtCHED TO SS 1 RIP-RAP eats. HED TO MANHOLE RISER B'Y 2-3'x1/4" CONCRETE AID PAVED NYVERT .'-4, ptQUT 6' wT 6w
VMIES
ANTI-FLOATATION DEVICE
FOREBAY BERM . ~ r
ANTI-SEEP COLLAR SIDE VIEW NOTE ON TRASH RACK PEflVt flN5 SHALL BE EOIIN.LY SPAC SPM,E51 MWND WNNOLE A AT /L pEBw RING). REBAR SPACING:
ILLY SPACED; 15 BARS (14 OPEN I, I. VHOLE RISER. (EACH SPACE a 13.2'1 6'-B' E p 1 2 2007 S
NOTE: RISER BARREL, SKIMMER AND OUTLET PIPE SHALL BE INSTALLED PRIOR TO THE BEGINNING DENR - WATFR QIJALITY
OF OVERALL SITE GRADING AND SHALL BE RISER & DRAWDOWN DEVICE DETAIL -FOR DRY DETENTION NT5 TION POND w MMMAND VO "T&q aW_4
UTILIZED AS A SEDIMENT CONTROL DEVICE BARREL 4RREL
DURING ROADWAY AND UTILITY CONSTRUCTION. C R 0 S S S E C TI O N 100 LF W ONCE SITE HAS BEEN STABILIZED AND GRADING ~ 0.50 )0 LF 30" "0-RING GASKET"
~ IS COMPLETED THE BASIN SHALL BE CLEANED °.50~ TRASH RACK DRY DETENTION DESIGN K DETAIL (N TS) TMREAn~v DRY DETENTION POND ) N D N OTES:
~ OUT AND STABILIZED. THE SKIMMER DEVICE 1. IF ORY DETENTION POND IS USED AS SEDIME CLEANED OUT AND GRADED. IS SEDIMENTATION BASIN OR TRAP, BASIN MUST BE COMPLETELY
SHALL 8E REMOVED. 2. A SINUOUS CHANNEL AT THE BOTTOM SHALL IM SHALL BE INSTALLED ON THE BOTTOM TO PROMOTE LOW FLOW
R,w. DRAINAGE.
3. BOTTOM SFW.L BE SLOPED TO PROMOTE DRA 4. A SEDIMENT DEPTH INDICATOR SHALL BE INS pip 4~ R,qp, MEASURE DEPTH OF ACCUMULATED SEDIMENT. MOTE DRAINAGE TO OUTLET STRUCTURE. L BE INSTALLED IN BOTH THE FOREBAY AND MAIN' POND AREA TO
Level S readers DIMENSIONS ELEV. SEDIMENT.
Level Q (cfs) Pipe Pipe Pipe Upstream Downstream Pipe Level Spreader POND BOTTOM 7,388 SF 257.00 vrEw 5. INTERIOR SHALL BE PW~iED WITH A WET ME 6. BASINS SFWl BE STABILIZED WITHIN 14 DAY SEDIMENTATION BASIN. 4 WET MEADOW AND/OR BERMUDA GRASS. 14 DAYS AFTER CONSTRUCTION OR CONVERSION FROM A
S Spreader (1 in rainfall) Length (ft) Slope Size (in) Invert (ft.) Invert (ft.) Material Length (ft) TOP OF DAM WIDTH 10 FT. 261.00 ~4 ~a ~r
N OUT 1 0.13 4 1.00 4 256.75 256.71 DIP 9 '2" PREFORMED JOINT
E ANTI-SEEP COLLAR 84" x 84" N A o.c ucw war ,~Z•~ff rtt~ca, ~z J.FR. 12' WIDE oRifice n~ueo CAP END VIEW
1-YEAR STORM ORIFICE 2" ORIFICE 257.00 IN CAP. SCREEN TO PREVENT CLOaf,YNG.
RISER - DIA AND TOP 5' DIA 258.60
OUTLET PIPE INVERT IN 30" RCP 256.50 SECTION VIEW
TO OUTFACE 3 4•
i OUTLET PIPE INVERT OUT 30" RCP 256.00 2 : 'vooosoooo ~,pppp00000Q00000
s v o~ O peeee 2. ORIFlCE OI~CLED ° : ~ 0~0 0000000000 \A CAR ~ 0-~ EsSro °0
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VELOCITY DISSIPATERS n~~,~nEV nv caw. s[~av ~r+~ ~ S E PREVENr CLOGpNG e 0 ° o °
0 SEAL ° O pe 1849 °
TO OUTFACE I~ 0 OUTLET CLASS LENGTH WIDTH THICKNESS CAP TOP VIEW ~ s4 ewe
NUMBER STONE (ft) (ft) (in) ELEVATION secnoN ~~,e G I SEE BMP SECTION FOR SIZING DATA ORIFICE CAP DETAIL ~~~'°°°~H DRY DETENTION POND n o0
TO LEVEL SPREADER TO LEVEL OUT 1 B 15 8.5 22 ~ ~ 06000000000 0
4" DIP SET 0.25' SPREADER OUTLET OUT 2 B 9 6.0 22 ~TM SEE OUT 3 B 15 8.5 22 TYPICAL ANTI-SEEP COLLAR -DRY 00000 OOtOpppO
PROFILE VIEW TOP VIEW - DRY DETENTION POND errs ~
I N.T.S. SPUTTER JUNCTION BOX DETAIL N.T.S.
~ No. R8VIS10Il Date B Designer Scale KW AS NOTED TER MANAGEMENT PLAN WITHF.RS RAV
Drawn By Date WEN[ W17NEI Sheet No.
~ DLP JFW 08/10/2007 :NDELL FALLS SUBDIVISION STORMWATE U R V EYO RS
g Checked By Job No. IEEE FALLS PARKWAY ENGINEERS 1 PLANNERS I SURV 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone]-6008 wwvi .withersravenelxom
g KW 02050261.04 Wendell Wake County North Carolina WENDEL
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