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l r tl I r ~ t I , Ip AQUATIC BENC t aj 1 t L w 1 1 " ~ ~ .P t I' z/ I I / r t€ 1 ~ t ~ ~ w } I > i Q~ ~ ~7p 4 ~ t 7 ) 1 t i t 1 i ~ \ > 14 1 ~ } ~ f' - ~ t Z iIC BENC - 278.50 3:1 M 3.1 M~ Z AX
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d I fs~ , v t E 4 ; h h t k i I t t t w_-F' m~D / / ~ .9''/ / i 1 ~ ~ s v I I e aw. ww ~h- t ~i B E 3 j 4 i v ~ < t E` ~E ~ i ~ / /
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, ~ t ~ E i 1 ° E ~ E E w, T UI~AT~~R ETPOND`# •~RAI~9AGEAREA: J' ~ / t ,t's s } ~ t I NTS 'Whh ~ Z
RARY~SEDIMENT ~ ~ t ~ I ~ t t, ~vvv ~ J' ' --T T` ~I SEQUENCE FOR CONVERSION OF TEMPO , h ~ ~ 4 v ~ I T f t 11 4 ~ v ~ h 1 I € v ~ r~ ~ s`'~ ~ ~ r VJ ~ O
..BASIN INTO BMP: 4 `t , t h E ~ ~ f ~ / + ~ E , ,w ~ € } IN~PE V~01 S: 9.01 A~ °k.- C 0 ,r t € W ~ LW 1-
r ~ I € 1 t v ~ t } a r 1
E 1.ONCE ALL AREAS DRAINING TOWARD BASIN ARE STABLE AND r E, o ~ E VEGETATED: 26.5T AC~ - C - 0.35 , ~ > MIN. LA A 10' DAM 1 T t a i t t ~ t f r i C SS 10'VEGETATED I r t t \ s = _ r f f ~ EMERGENCY WEIR E VEGETATION IS FULLY ESTABLISHED EVERYWHERE, SEDIMENT , ~ t < € T0~'A : 5.589 AC s - CC X6,50 rf zr ~ , RIPRAP APRON AQUATIC BENCH 10'VEGETATED ~ ~ U r QUATIC BENCH FLOW PATH ELONGATION ~ W Z Q W
' .SEDIMENT MUST BE CLEANED FROM SEDIMENT BASIN, AND ` i ~ i i ! t _ ,f T~ ~ @ PIPE OUTLET IN BACKGROUND TOP DAM € ~ f' r ; q y ~~~,r. ' ~ ~ r ~ ELEV-276.70 = GABION BERM -TOP MUST NATURAL GROUND BE AT TEMP POOL ELEV ~ E
POROUS BAFFLES REMOVED ANY DAMAGE TO EXISTING DAM d~ F r' j (rf \ ~ ~ E € SEE DETAIL THIS 276.50 r T , 1 \ , ; ~ t , LEVEL SPREADER ,f MUST BE REPAIRED ATTHI$ TIME. ~ , t € r ~ " SHEET TOP OF DAM = 278.50 TI=~ O O Z W
/ € E i' ~ ~ t ~ ~ LIP ELEV = 273.50 = - _ _ f t ~ ~ ~ 1 t CL i BENCH AND EXCAVATE PERMANENT POOL TO ~ / s , ' ' € ~ / ~ _ -~~=~fi ~ - ~ 2, GRADE AQUAT C , ~ ~ ~ ~ ~ ~ I E ' t ~ - ' ~ BENCH I==1 I I----I LI=~ I I"- ~ ~ ~ ~ 0
PROPOSED FINISH GRADE. i " r ~ 9• ~ € qq ( ~ ~ f":w NATURAL ~ ~ ~ BENCH TEMPORARY POOL = 276.70 ~ I ~ I ~ I! I I=I ~ ' ~ LL ~ n/ ° OI- I PERMANENT POOL = 275.00_ J~ , - ~ Z W W
3. INSTALL FOREBAY WEIR, SUBMERGED OUTLET ORIFICE, AND DRAIN ~ ~ W E E ; , / ~ r ~ INV - ~ I=~ ~RTH EMBANKMENT ~ ~ / ~ 's ~ ~ ; r ~ r ~ GROUND _ f ' VALVE... i , ~_,-,__~,/~v 4 s E~ E;= r r t 272.50 - ~-~~'OMPACTEDT090~PROCTOa~~~-~~~ ( _ +J ~ - - INLET PIPE - 1II INN = 274.58
rT r' 4. INSTALLAQU'ATIC BENCH VEGETATION AND SEED/MULCH ANY ~ ~ a r ; ~ f` ~ ° ` _ ~ `~r f lid FOREBAY _ _ _ ~ ~ ~1 00% - _ '-~t, 111 _ ~ I ("`III O Q
/ r' ~ ``hv E € t ~ T rf t'°' - i• F 6" PVC BARREL@ 1.00% a € , / ~ ~ r°' - - i 166 LF 0 - b 1 r f AREAS DISTURBED DURING BASIN CONSTRUCTION ; ~ t I EI ~ ~ ~ ~ ~ ~ t r Ib - 7 f f 3 1 t p i - ~ it ~ ~ i 1 t ii , .tf -~II- i' INV= -I I ~ ~ BOTTOM 269 00 i ~ ~ ` ~ i ~ 1 1 I 3 i ~ B TTOM 269 00 L_.-) III=) I I L~ I ~ I-- ~ _ V J INN I f I I I1=.-I I I~ I I I ~ I 1 I ~~,I I I I-~ I I I I 1=1 I I I -III I ~i ca,BloN ' I I--~~, i i I I~ ! I I! k I III-f ~ I-~
274.16 f t~ pf rr`~ ! f9't t 4' 1 / S i ~ E \ 1 d / 274.16 oUITLETIASSEMBLV III--III=III-III=II~I11=III=111 III-III-!!FOREBAY-III-III-III-III-=111=~~'
' r ~ ~ ~ / r E r' ~ t ~ i ~ ~ ! ' 't i~' ,r * ALL EMBANKMENTS AND SLOPES t ~ r° r ~ ~ ~€r / w rF E r t 7 ! Fr ~ 7 S r i , ~ t 7 E , E 1 e l 1, f SFE LEVFL CLJAI I RG CTARII 17GI11Al1Tl-I1/Gf-I:TCTIf1Al SEE DETAIL THIS SHEET 1' SEDIMENT WEIR PROJECT N0.
STORAGE
SPREADER " 1V VEGETATED AQUATIC BENCH SHALL HAVE INNER -IAVE INNER LE V-395
IL SITE DRAINAGE AREA MAP ~t i f' rr 3 ? DETAIL THIS EDGE 0.5' BELOW PERMANENT POOL ELEVATION, AND ATION, AND
SHEET TER EDGE 05 ABOVE ABOVE PERMANENT POOL ELEVATION iL ELEVATION
T #
SCALE: 1 -100 SEC SECTION VIEW - THROUGH OUTLET STRUCTURE
7777 MP2

N
M N
r~i _ x. ~ \ \ 10' VEGETATED 10' VEGETATED 10' DAM m o
I ; ~ ~ \ \ \ t
4 ~4 ~ 0 AQUATIC BENCH AQUATIC BENCH N
t ~ oti t M 1 t # ) \ o N ~
! ~ ~ M / ~ €TiI I [~I TOP DAM Q ~t
f I f / ~ ~ ~ '-I i I- TOP OFDAM = 294.50 = 294.50 ~ \ ~ ~ ~ I ~ { I, i - ~ TEMPORARY POOL ~ k i € _.M GROUNDL c~i1
-'f-- NATURAL I 3• I.__ " ~ GROUND 1-I - III ~ 3.
~ ~ r wa 14 jt ~ ~ i ti ~ I- PERMANENTPOOL - Ik I I'! (EARTH EMBANKMENT(*-hi I G I1 •o
I - - - _ , I I (=1 I I--~~ { I~ I I- 3' ~ ~ _ =I I (I-~ COMPACTED TO 90% PROCTOR€ I ~I ~ u~
~ ~ -1i~ ' 3 II~IfI.~l,1-~~ 'III-_ ~ I - w~ ~ ~ ~ . ~ -III -1 I i-I I~I-_I i 1-j z
~ ~ ~ I I I~ f I~ i ~ k---7 t i( - Q F1
) • I I ~ I l I~~I I.. , I 1-I I CSI I I ~I I ICI I l- ~ r ,.r 1' SEDIMENT STORAGE ~
f r w, O W a
1 / / `4 / ~ ~ BASIN CROSS SECTION ~ c ~ m
~ d I ~ e r f ~o ~l, j
f t' r ~ /
{ ~ P~ r ~ _ I I t 1 ~ I l \ 1 ~ v
~ o, I , _ l ' 1 ~ ~ ~ ~ ~ 10' VEGETATED AQUATIC BENCH 2'x2' PRECAST CONCRETE ~
'i ~ I I Wr ~ ~ I' OPEN-THROAT DROP INLET
\ t I I t l 4" PVC GROUTED IN PLACE o 1 4" PVC SCREW (D ~ d' ('7 N r O n
j , „ ~ TYPE PLUG _ LTEMPORARY
1 I ~ = POOL 3,1 1211 4" PVC TUBING z w ° m
i. 1 t~~ ~ r - - - f LL W w _m
~ ~ l € _ PERMANENT ~ w o o o w° °z m r 1~ I~-=-,~11(-•(-3 l(-•;-'1"~- 1~,~,~__ 1211 T POOLS c W i ~ p_ ~ W y~ JQ °w ~ z
I I t _ I / r T ER T OND D G REA: ~ w~.,-----~-~ jg I i I' } , S ORMWAT W~ RAINA t , - _ f ~ I ,II-'I11. ~ ~ 0 QCmFYZm.WpLLO w,., - ::..,Ikk"":""(W 1I, .:I N H O:pWIZaf-m-IVY
f o" jl 't 1 ~ IMPERVIOUS:1.697 AC\ C - 0. 5 g i ~ ~ i I I ~ ~ ~ / VEGETATED: 3.349 AC - C = 0.3~ g 1 ' ~ r i~ 6"PVC BARREL. 8" ©~W ~ o~rca~3~=~N~ W
' _ UOmza
f .1 ~ e ~ 1 ~ TOTAL: 5`046 AC ~ Cc = 0.55 \ ~ r r SPREADER 12" POURED IN PLACE ' I ,d 1 - ~ 3'€.~,'~~~ C7 z o ~ F N ° z ° x ~ ~ ~
~ ~ ~ ~ ~ r ~ \ t ~ ~ ~ ' ~ ~ ~ ANTI-FLOATATION ` ~ B Of BASIN ~ 3 o c~'x °z o z ~ LL ~ ~ o 411 PVC CAP WITH ~ ~ z o Y w LL ~ a t CONCRETE f'~ ~ _ a rn ° ~~ag>~~aa~o
DRILLED HOLE €~-----€I 0 Z oa°'~~~~~zrn~ 12"BELOW PERM III,1€n `!°I1111~[ii I,1 ~W U 0 ~~~iyoQ~°w~
POOL ELEV. U mJW-U'U'ZN=gF=N F»wg~3mzOo
'I E, ~ ~ ~ 1 V 'z ~ I
I t a ~ o I ° DETAIL #2 - BMP OUTLET ASSEMBLY w
t ~ ~ ( I ~ ~ ~ a 0
~ ~ ~ 1 ~ ~w. ? I ~ ~ \ ~ ' - _ k. _ s ~ . m._ ~ \ \ ` \ ~ ~ f BMP# 3 PLANTING SCHEDULE ~ o
l I ~ ~ ~ I . I• I ~ ~ \ ~ ~ # ~ UPPER HALF OF VEGETATED SHELF (OUT OF WATER) ~ N
\ ~ y \ ~ ~ ~ ~ HERBACIOUS ASCLEPIAS INCARNATE 1 SWAMP MILKWEED 4" CONT. 8 ~ ~ p
I \ ~ 1, f \ I ~ \ \ \ ~4 z j r CAREX SPP. I SEDGES 4" CONT. 8 w ~ d ~ r ~ ~ CHELONE GLABRA I WHITE TURTLEHEAD 4" CONT. 7 H a o
CRINUM AMERICANUM 1 AMERICAN CRINUM LILY 4" CONT. 7
. ~ ! ~ CRINUM ERUBESCENS I SWAMP LILY 4"CONT. 7 Q DICHROMENA LATIfOLIA /WHITE STAR GRASS 4"CONT. 7 W oC
\ I ~ t EUPATORIUM COELESTINUM 1 WILD AGERATUM 4"CONT. 7 z Q
w • , r (7 Z LOWER HALF OFVEGETATED-SHELF (SUBMERGED)
• Il ( ~ ~ v I ~ / i - _ " EMERGENT CYPERUS ARISTATUS I FLAT SEDGE 4" CONT. 11 ~ ~ m
s r P ~ J I 1 r r / ~ JUNCUS EFFUSUS I SOFTRUSH 4'' CONT. 10 w w Z w
ACORUS SPP f SWEET FLAG 4" CONT. 10 ~ 3 ~ Q ~ UQ U Q PELTANDRA VIRGINICA I ARROW ARUM 4".CONT. 10 a~ a W o W rn Z
I,~. w. I ; l SAGITTARIA LANCIFOLIA! BULLTONGUE 4" CONT. 10 _ _ ~ _
I ~ \ • • • • ~ ~ ~ ~ ~ * PLANTINGS TO BE INTERMINGLED AND DISTRIBUTED UNIFORMLY
10 JNIOE-" s~'' P ~ VEGETATED t 6 t % / _ _ . IN SHALLOW WATERAND-DEEP POOL AREAS, APPOXIMATELY 24"-30" ON CENTER
~ ! AQUATIC , ~ ~ I I I ~ j z 1 ~ ~ 1 ; f / t` / r t { I ~ BENCH I \ ~ I I, t 1 ' ~ ~ ~ 1 t tf r "
~ ~i~ 130' I I ''ti i ' ~ f ) 1
i I - - - ~ ~ FOREBAY I ti ! p„ j l r r ~ ~ r` ~h LEVEL SPREADER FINE GRADE, LIME, SEAL
~ _ ~ i ~ ~ E l I ~ r 1 I 1 GE,.-- EN z 1 1 r ( ~ ~ -pim CONCRETE LIP SEED, & MULCH LEVEL ~ 3 Z Z ~ ~ ¢ ELEV = 288.50. SPREADER & SIDESLOPES, ~t~ ••p.~. ~ j n \
~ , ~ - - INA~ SEM I I , - - DRA, EA / ? I t ~ ~ ~ Oh 311 LAYER OF ROUNp PLAN VIEW ••'~•..INE,~• •PGj~\.`~
- AC \ - - D ~ r I I ~ - . / ~ _ v i , ~ ~ y ~ , , of #57 STONE EXISTING G Q ~
/ t ~ ~ ~ ~ I ~~I
~ ~ : y ~ _ 28 287. _ - r r ~V \ 1 E I ~ I r" ~ V \ ~ ~ ~ t
.f , 288 2gg - ~ ~ / ~ - ~ _ 2 [ 4 ~ E - , ~ ~ \ `t ~ 1 290. - - - i ~ POOL PIPE 104 PIPE 105 DEPTH 6" PVC BARREL 24" GASKETED RCP z,~ 15" GASKETED RCP
_ ~ ~ \ ~ ~ ~ - - ~ ~ I I ~ ~ 1 ~ FROM WETPOND TO BMP #1 } 3' WIDE a o (p
CL STREAM ~ ~ ~ ~ ~ \ i ~v ~ - - r 2p \ ~ v v v STRIP OF ~
N ~ v ~ ~ ~ 1 F ~ I I y ~ ~ ~ i ~ A ~ ~ o ( ! ! .FILTER ~ C0 O
cb i 1 ~ 29a 292 \ ~ \ \ ~y ~ `e ( ~I FABRIC FOOTER REINFORCED CHANNEL ~ ~ M ~ RIPRAP @ PIPE OUTLET) ~i ~ ~ ^
~ ~ A ~1 { ~ ~ i ~ ~ 290 ~ ~ ~ ' V
p: ~ i - ~ ~ A / ~ ~v ~ ~ ~ i ~ t i ~ 1 ; ~ MAINTENANCE: ` ~ _ ~
~ 7~ INSPECT LEVEL SPREADERS AFTER EVERY RAINFALL UNTIL VEGETATION ~P~~E , p ~ ~ IS ESTABLISHED, AND PROMPTLY MAKE .NEEDED REPAIRS. AFTER THE ~ _
3 ~ I 1 ~ AREA HAS BEEN STABILIZED, MAKE PERIODIC INSPECTIONS AND KEEP ° WITH 8' ~ r X
OUTLET LEVEL ~ VEGETATION IN A HEALTHY, VIGOROUS .CONDITION.. ~'a ORIFICE o. ~ H O ~ ~ ~
STRUCTURE. SPREADER #3 LEVEL SPREADER DETAIL.. a ° . o ~ ~ M
a ~ V NCO ~ a , -I~ 00 ~
n_ i SCALE:1 - 50 LNM
4'x4'JB-TOP=294.16 ~ SUM ~
WETPOND # 3 BYPASS SWALE PROFILE SCALE:1"= 30' LINING: CLASS B FLOW BYPASS STRUCTURE: ® ~ Z RIPRAP 12" THICK ~ L
~ ~ I NATURAL 3' INV IN (24"GASKETED RCP) = 291.26 Q. O~ ~ GROUND INV OUT (8" ORIFICE= 291.26. 0 p O ~
1 1 ~ ~ INV OUT (15" GASKETED RCP)=.291.26 CAST IRON U ~ ' ~ N
1 i ~ RIPA~IAN ROA ~ ( f _ _ O I ~ I~ I I III-I 3.1 4 g•1 I~ I I-I I ~ TOP STRUCTURE = 294.'16 FRAME AND ~
n _ ~ 300 ~ 3_ _ B~iF7 R - ~ _ _ I~.~ ~~5- NK~i ~7T ~ i~ SCALE.1 - 30 / , ' ~ =1 I I=1 ~ I=1 ~ I _ ' III-III-III: GRATE °o = o ~ I _ _ PIPE. _ ~ , I~ ~ I=1 11= r 2 J
~ I 105 I -TOP=294.16
~ i I f I ~ w- { I PIPE 104 -f- Ire ° < '
. ~ ~ _ I TO LEVEL SPREADER 8" ORIFICE, FILTER FABRIC n ' e, 1~ ~ ~ UNDER RIP RAP ~ ORIFICE
~ - - - 1 h RI -294.16 - - - - o IN IN = 291.2fi ~ , J ~ INV = 291.26 { PLATE
10'WIDEVEGETAT D~.., ~ f _ ~ / Q i IN OUT (8.5") 291. AQUATIC BEI~C ~ i p I ~ $ECTIONA-A 8"ORIFICE a INLET-24"
- - - w._ ~ 4 B TTOt~ - 291.26 ~ i _ / - 10 EAR TOR I ~ I I ~ SCALE: 1" = 4' GASKETED RCP Z
~ E - - ~ 296, -.uw.-- -""'---.nw---"'K ENANC r._- _ ~ FL WD PTH 0.65' a a / 1 , e
_ p~ CESS~i A ~ _ - ~ - - AND , ~ ~'1`I'OI~.O ~ I V/
- ~ i ~ ~ ~ 11.2' MIN LO ER HAN € ~ I ~ ~ °lo I - - PIPE 104 2• 1 2, !o LINING: CLASS B I ' Z
- - ~r~~..--- 294; NA•TU _ _ - ~ / i ~ PIP' 106 ...w. - ~-C ~ j ! i I • I PIP 106 NATURAL RIPRAP 12"THICK NATURAL I
i ( ~1B 105 ' b `B 105 GROUND GROUND I` j BOTTOM a.. W M 3' = 291.26
- ~ B A ;A5o/ IM = X00.141 _ _ _ ~ ~ ~ STREAM 8" 0 IFIC 115' , ~ 1 } i - [NV IN=294.02 ~tIM=X00141 ~..e aQ.. .a e' M ~
' - IPE 1 5 - 6 , - -y",--- ~ 292 ....._...'r ;_..INV 291:.. _ NV4ll)F-=.293:92... _ 2~ - - ~ r , ; [NV IN = 294 02 - OUTLET 15" ° ~ ~ ~ Z Nk101~F=293:92--- - - 3:1 1.2' g.1 GASKETED RCP s rn
- ~ 2aa a9 - ~ , ~ I 1.00 _ I ~_ITI~ ~ I-I I I ~ ICI ~ I-I ~ I" ~ v i E I
- ~ - - I 90 HIGH FLOWS / - 2 g2 _ _ ~ j PIPE-~~ 04 IN BACK ROU D i ? -1I I-1I I „I ~ I. ~ 1- I=11 I-1 11= u Q k ' € I I ~ =1 j I- MIN. 9"COMPACTED #67 STONE W
= 2 ~ ~ ~ { I iTOW RDS EVEL PR DER - ~ BYPASS CHANNEL ` 1 i - BASE TO BE INSTALLED UNDER Z FILTER FABRIC ~ 11=1 11=1 11=1 NEW MANHOLE.
2901_._ _ ~ ~ uNDER RiP RAP SECTION B-B SECTION VIEW ~ Q
_ , / / ~ ~ / 75° SCALE: 1" = 4' ~ Z
29~ ~ ~ M BYPASS SWALE DETAII JVALE DETAILS FLOW SPLITTING STRUCTURE W O
TGp ~A / ~ ~ _
W~ WI-
294 g2 2 J I-Z
MIN. CLASS A 10' DAM 290 RIPRAP APRON 10' VEGETATED 10'VEGETATED NATURAL Z W Z ~ W
Ha PIPE OUTLET AQUATIC BENCH ~ 2 °e TOP DAM AQUATIC BENCH GROUND O O ~ ~
LEVEL / = 294.50 TOP OFDAM = 294.50 ~1 =I =I_ 1_ ~ 0 ~ LJQ.1
' SPRE R #3 ,i LEVEL SPREADER OUTLET ~ -LIP ELEV = 288.50 - - -
- STRUCTURE ~ =I (=III=I I ~ - CL TEMPOF ~ NATURAL ~ 1=1 I 1=1 I 1=1 ~ ~ (I BENCH -I I l=1(I,~I I I_ f~' O ~ ~ I- TEMPORARYPOOL = 293.00 ~ _ III-_~ I I-I I ~ O
GROUND INV = I hEARTH EMBANKMENT *WI ~ - 1 PERMANENT I PERMANENT POOL = 292.20 ~ ~ I; i € SEE FLOW >Z W L
287.5 = III=LOMPACTEDT090%PROCTORfII~~== VEGETATED ~ 3•~ - = 3•y ~ FOREBAY _ - - 1224 LF OF 15"RCP SPLITTING > Q f T ~ ~I ~ INV - 289.02 ~ STRUCTURE Q O > V J
FILTER STRIP - - - - _ VC BARREL 1,00 0 - I _ - INLET PIPE @ 1.0 .DETAIL THIS
I ~ I 1=1 =I ~ =I I (=f 40 LF OF 6 P @ _ =1 11= '-Ti1=ITi ~ ~ i I f=i I i- , , - I~ I h' ~ INV = `1 ~I 1 ~-I I ICI 11=1 I IBC t r . „ 287.90 ~ =1 11=111=11 ~-1 I I- =1 III III-III Bt~'II~MII2851p0II III-IIrII III III=( ~I€€-II( BOOM 28500 (I~~.IIII(IIIL~I`~~I)Ih SHEET
/ OUTLET A EMBLY I I-I ! I=111=1 I I~--111=1 E I-I I ~i I I-I I l=1 I i-I I I I 1=1 I I-I l 1=1 GABION III III-III-I 11=1 11=1 ~LET ASSEMBLY FOREBAY PROJECT N0.
t ~ * ALL EMBANKMENTS AND SLOPES SS ^ 1' SEDIMENT w~€c - - - - -
SEE LEVEL att ur i AIL i nia an=t i F SHALL BE STABILIZED WITH VEGETATION IrIAIL inR) ancti STORAGE (6-395
SPREADER 10' VEGETATED AQUATIC BENCH SHALL HAVE INNER DETAIL THIS EDGE 0.5' BELOW PERMANENT POOL ELEVATION, AND
j SHEET OUTER EDGE 0.5' ABOVE PERMANENT POOL ELEVATION SHEET #
r'
i SECT SECTION VIEW V 1 V I 1 3