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SPILLWAY PLUI~(;E pO.OI /
VELOCITY~DSS TORS ~ /
~iC RIPRA - M ELEV - --w- I~ ~
i ; ~ ~

4'` FHiCK CONCRETE ~ C451 ¦
~-SL PROTECTION`` > ~ ~ CRESTE
- CREST ~ ~ ,
\ '
~ ca54 15 0 PREC T ~ L ~ \ ~ ~
r INV OU1- $ ~ ~ ~ w~.._ J ~ ~ r~ H 0 R VAT H
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Leo R ~w.T..2 TALL M~IRINE c ~ 3e6o- I X60.. ~ l ~ ~ ¦
PLYNf D BAF L L ~ ; ~ " ` ~ ~ ~ ¦ 16 CONSULTANT PIACE, SUITE 201
~ DURHAM, NORTH CAROLINA 27707 ~ „ ~o 1 ¦ P 919.490.4990 F 919,490.8953
`~o - END ~
3 a?o H T L P H ~?,p ~ ~ 1 ¦ 537 MARKET STREET, SUITE 1L20
- ~ 3so.o ~ ~ E ~ IFIC ~Q I 3815 _ 380•Q + / ¦ CHATTANOOGA, TENNESSEE 37402
381.5 ~ / P 423.266.4990 f 423.266.5700 I X20 ~ 381.5 I 1 ~ J I ' www.horvathassociates.com
381.5 .a I 382.0 x'"2.0" I 382.0 ,
+ -I-
4 u I ~ T @ 3 L. ~ se2.o 45 ' \ ¦ r /
+ r. / - - 382.0 Wl~kl 1- I ~ i D 382.0 t \ ~ ¦
381.5 / ~ NORMA PO L LEV 38 . 3ao.o _ Zo~ E ~ 380.0.- 381.5 f ~ } "w, ~~t ~ ~ ~ ~ I ~p~ ¦
361s P A T LI T o 0 381.5 ~ E~ ~ ~ __~rr
~ HW 72 PL OOL 379.0 / c ° F E ~ 379.0 ' ' `v
X2.0 VELOCITY 0 382.0 ~ ~ ~ r ~ ~ ~
3sa.o NCB L 384.0 rr ¦ ~ Q
386,0 ~ r r R ~ \ 15 L X 18 1 THI ~ 386.0 - I ~ ` ~ " RC L Z
388.0 ~ . _ - 388.0 ~ ~ f I V ¦ p ~ J 390,0' ~ ~ ~ ¦ Q 0
390.0 . \
0 ~ ~ 392,0 CA G, 392.0 ~ ~ C \ ~ ~ ¦ ~ Q ..M~.. ~ ~ ~ Q U
R LE WIDTH 394.0 L ty ¦ ~ f17
394.0 ~ 396,0 ~ ¦ ~ F~-
S R SS 396.0 ~w- `
398.0 ~ w- 398.0 ~ ~ ~ 0 ~
¦ W ZZ
¦ ~ U~
1 2 0 15 30 60 LAND # 1 B PLANTING PLAN o ,5 30 ~ o Q
C450 SCALE:1"=30' C450 SCALE:1"=30' ' =30 ~ fY
SCALE: 1" = 30' SCALE; 1" = 30' ~ ¦ ~
¦
¦
¦
END CAP WITH 1-1 /2"ORIFICE ¦
3 L.F 4"PVC SIPHON TOP OF BERM ELEV = 388.00 TOP OFBERM =388.00 BARREI INV IN =382.00 ¦
15"PRECAST HEADWALL 15' CAP WITH 4"ORIFICE 3 ~ 3 INV =381.00 ¦
25 YEAR WATER SURFACE ELEV = 386.20 INV =382.00 1 1
1 YEAR WATER SURFACE ELEV = 385.21 ' WETLAND # 1 B
BARREL INVOUT=381.00 T.o.w. GRADING AND
[A' PLANTING PLAN
POND BOTTOM = 382.0 48 LF.15"RCP , NATURAL GROUND
@ 2.01 ~o
(I°"""....I I BOTTOM=380.D0 2" CL 2" CL
i ¦
- k i ¦
i- - - _ ¦
Y TRfN A§-5P I -
i _,_....i #4@ 12" O.C. HORIZONTALS ¦ EACH FACE
~ ¦
I~ U ¦
#4@ 1 T O.C. FRONT FACE
¦
#5@ 12" O.C. BACK FACE 4"THICK CONCRETE ¦ PER NCDOT SPEC
g ~ OJ ¦
P #4 @ 12"TIES ¦
~ .y
0 ¦
0 2.5 5 10 3 (4) #5 CONT ~ ¦
C450 SCALE:I"=5' T&B
SCALE: 1" = 5' B.o.w. '
~ ~ ~ ¦ ~ ~ - ~
¦
U - ¦
N N ¦
L NT LI T PA S ¦ • • •
¦
BOTANICAL NAME/ QUANTITY HEADWALL CDOT CLASS'B' RIP-RAP O ~
ZONE COMMON NAME SIZE SPACING 15'Lx18'Wx18"THICK 18"THICKLAYER Trees&Shrubs DB#16 DB#7 DB#8A DB#86 DB#9 DB#9 • • • •
CLASS GRIP-RAP ¦ J
18~ ZONE l: Nelumbo lutea A ~ ~ : ; ' A 1 QT• 3' O.C. 30 - 50 80 -100 40 - 50 40 - 50 40 - 50 40-50 U ( I i+> ¦
2' 2' FLOATING SPECIES; AMERICAN LOTUS Nymphaea odorata 40 -50 ¦
~ ~ ~ ~ ~ ~ ~ ~ ~ \ ~ ~ ~ WATER LILLY 1 QT. 3' O.C. 30 - 50 80 -100 40 - 50 40 - 50 40 -50 2.. CL. 2" CL. ¦ I
\\~.\\\~°r\®\~0\\°~\®\ •
¦ 1 ~-8" 1'-0" 1 ~-8" I (
4" FILTER BLANK , 3(P'Ri RCP ; ,c.. ZONE 2: Pontedena cordata
WET ND EMERGENT HERBACEOUS SPECIES: P KEREL WEED 1 QT. 2' O.C. 20 - 40 50 - 80 20 - 30 20 - 30 20 - 30 15' LA IC 20 - 30 • ¦
Iris virginiana 1 QT. 2' O.C. 15 - 25 40 - 50 20 - 30 15 - 25 15 - 25 15-25
PLAN ° ° ~ ~ ° ~ BLUE FLAG IRIS Saururus cemus NOTES: BASIN ID [Al [s1 [~l ' I I
° ° ° LIZARD'S TAIL 1 QT. 2' O.C. 20 - 50 70 - 90 40 - 50 40 - 50 40 - 50 HEADWALL Carex pendula 1 GAL. 2' O.C. 40 - 50 70 - 80 20 - 30 30 - 40 30 - 40 1. DESIGN ASSUMES 2500 PSF SOIL BEARING - VERIFY IN FIELD DB# ~ B 385.3' 382.8' 2.5' ¦
NOTE: WEEPING SEDGE 30 - 40 2. CONCRETE STRENGTH.-3000 PSI DB # ~ 364.9' 362.5' 2.4' I I ¦
m ~ A FILTER BLANKET SHALL BE INSTALLED BETWEEN THE RIP-RAP ZONE 3: Itea virginica a" AND SOIL FOUNDATION. THE FILTER BLANKET WILL CONSIST 3 GAL 4' O.C. 60 - 70 120 -150 SO - 70 50 - 60 60 - 80 2:1 WETLAND SHALLOW LAND SPECIES: VIRGINIA SWEETSPIRE 6o-so DB # $A 348.6' 34T 1.6' ¦
30" 0 RCP ~ ~ OF A MINIMUM 4"THICK LAYER OF STONE (NCDOT #571 DB # 8B 336.1' 334` 2. DRAWN BY: CHECKED BY:
UNDERLAIN WITH MIRAFI FILTER WEAVE 700 OR APPROVED Asclepias incamata 1 QT. 2' O.C. 30 - 40 60 - 80 20 - 30 25 - 35 25 - 35 ry1 EQUNAIENT, SWAMP MILKWEED z5-35 DB # 9 357.9' 356' 1.9' ' MLJ JES
s " a r Ilex glabra 3 GAL. 4' O.C. _ 2 20 - 30 1 - 2 15 - 25 15 5 40-50 5 5 15 - 25 ¦ DATE
Clethra alnifolia 15 - 7s ¦ 3-25-2008
7 SWEET PEPPER BUSH 3GAL 4'O.C. 15-25 40-50 20-30 15-25 15-25 15' FILTER BLANKET ¦ SCALE
(SEE NOTE I AS NOTED
SECTION A-A
6 SHARP-CRESTED WEIR WALL DETAIL PROJECT .
r4'~~HW 72 PLUNGE POOL WITH VELOCITY DISS IPA TOR ALL WETLAND PLANTS TO COME FROM: C450 SCALE: 1"=]' SHEET NO.
0450 SCALE: N.T.S. r5"'~PLANTING HOFFMAN NURSERY
5520 BAHAMA ROAD ry C450 SCALE: N.T.S. ROUGEMONT NC, 27572 (800 203.8590 0 I,2 2 a C450
www.hoffmannursery.com
SCALE: I"= P 0
1 ¦
©COPYRIGHT 2007 THIS DOCUMENT AND THE DESIGN ARE THE PROPERTY OF HORVATH ASSOCIATES, P.A. ANY REPRODUCTION WITHOUT PRIOR WRITTEN CONSENT IS PROH189M

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10.00' I,° t
A
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0 3 ch _ 3 ¦
1 ~1 ¦
-14 L.F. SHARP CRESTED WEIR ELEV = 385.30 ¦
--1 LF. WEIR NOTCH ELEV = 385.00
0 NATURAL GROUND ~ H ~ RVATH
N ~ N ASSOCIATES
N
16 CONSULTANT PLACE, SUITE 201
- 4" TYP ~ ~ DURHAM, NORTH CAROLINA 27707 ~ P 919.490.4990 F 919.490.8953
( ) 1
¦ 537 MARKET STREET, SUITE LL20
} 1 1 ~ CHATTANOOGA, TENNESSEE 37402 P 423.266.4990 F 423.266.5700
- 1 1 ¦
KEY TRENCH (AS SPECIFIED www.horvathassociates.com
BY GEOTECHNICAL ENGINEER 5.00' 7.5'LX4'WX18"THICK
CLASS'B' RIPRAP ¦
¦
KEY CONCRETE CONCRETE SLOPE PROTECTION ¦
1 IN GROUND (TYP) , , (SEE BASIN OUTLET STRUCTURE NOTED )
¦
¦
¦ Q
Z
¦ ~ ~
~ Q~
0 ~ ¦ ~ ~ Q
TOP OF BERM ELEV = 388.00 J =
~ p~
' ~ =0 W
J ~ ~ ~ - zZ
~ 0 100 YEAR WSE = 38E ~R WSE = 386.45 ~ ¦ ~ U ~
~ 7.00 1.00. 7.00 /~i , ~2
~ SHARP CRESTED WEIR ELEV = 385.30 i ¦ ~ r~ i ¦ ~
~ -WEIR NOTCH ELEV = 385.00 ~ i ~ ~
' ~ i
i ¦ i
i ~
i i
¦ i i
¦ i
~ ~ ¦

' WETLAND # 1 B
7.5'LX4'WX18"THICK DETAILS
CLASS'B' RIPRAP
0 l 2 4
0451 SCALE:1"=2' SCALE: l" = 2'
4'-0" O.C.
za/a' POSTS SHALL BE EQUALLY
SPACED
a..
0 0
1.318" (IYP.I n 2X6 ; y2 PRESSURE-TREATED ,
MARINE-GRADE POST WITH "i~~;s..:..,•;.:,..,, 8" O.C. SPILLWAY BOTTOM ` ~ ~ • EPOXY 15" 0 STEEL PLATE TO GROOVE IN 15" 0 RCP ~
PLYWOOD CEDARCIDE ON • ~ • x ~.:>a••: NCDOT CIASS'B' RIP RAP 80TH SIDES OF a r.,,;. ~ ¦ 3 4"0 ORIFICE IN STEEL PLATE INV =382.00
BS-1088 e•:3•'~°~~: .•«°S~rs:•.. 7.5'LX4'WX18"THICK PLYWOOD w:;f.•"•'r••... ;..M : ;~w «,;Y'•.:~ SPILLWAY SIDE ~ i 4"PVC FLANGE EPOXIED TO STEEL PLATE ~
1.2 ' o SPEC) o A A 18"THICK LAYER SPILLWAY SIDE 0 m CLASS'B' RIP-RAP SLOPES 3:1 ¦ SLOPES 3:1 ~ ' MATCHING INVERT OF PVC TO INVERT OF 15"0 RCP
TREATED WITH ` CEDARCIDE a '~"'TM.';(, 4' ~ 4: q La. .s e e . ~
x 4 CARRIAGE BOLT WITH WASHERS "r'~~~'''. -v 1' 1' 15"fd RCP INV = 382.00 ¦
HOT-DIPPEDGALV. 7-,• •.9-M-°x•.
AND BITUMINOUS SPIILWAY SIDE ~ a~,,~4J 18" 0 0 0 o COATED (TYP) SLOPES 3:1 ~,,g ~4µ~,: 1' RCP @ 2.0 I /d 4"PVC 45 DEG ELBOW '
TOP OF GRADE ~ ¦ NORMAL POOL ELEV = 382.00 I I
-iii 4 ~ r. 4"FILTER BLANK .T.-...~......... I .....r..,......... I
`'ry'a>'~:i.a:ia ~~>~r:'~~w'•a, i;n~,~; aA 'A d aAai y>~'P.i°.a :,1y`rl •'t ..fAr+.•.,., 2 4"PVC CAP WITH ~
1 1-112" ORIFICE ~ I I
• • • SPILLWAY SIDE SLOPES 3:1 ~ I
2'2" e ~ 18"MIN ' ~q•. PLAN
• CONCRETE • g.=''` w:~ NOTE:
. • ~ e o , BASE • ~ 4 v . p;;;?•; 7.5' A FILTER BLANKET SHALI BE INSTALLED BETWEEN THE RIP-RAP MICROPOOL BOTTOM I I E RIP-RAP ELEV = 380.00 ~
• t: wS''~ .•''.1' r-: 1' AND SOIL FOUNDATION. THE FILTER BLANKET WILL CONSIST 4 ~ ~ ~ »r "`=x°~: ~=a~:,-~ < ° a OF A MINIMUM 4"THICK LAYER OF STONE (NCDOT #57) CONSIST
~ A eY ~ V L~ ..0~8 ' ~ , ~ ~ . , 1 ~ ~ UNDERLAIN WITH MIRAFI FILTER WEAVE 700 OR APPROVED 'ROVED _ { _ l ! I ~ ¦
. • . • EQUIVALENT.
y" MARINEGRADE PLYWOOD Yi' MARINE-GRADE PLYWOOD
SECTION VIEW (BS-1068 SPEC) TREATED WITH CEDARCIDE (BS-1088 SPEC) TREATED WITH CEDARCIDE 4" FILTER BLANK
PLYWOOD JOINT DRAWN BY: CHECKED BY:
2x6 PRESSURE-TREATED POST E TI N /A-A SCO MLJ JES
WffH CEDARCIDE (TYP) ¦ DATE
~ 3-25-2008
~ SCALE
a/e' x 4"CARRIAGE BOLTS AS NOTED
WffHWASHERS / _ \
HOT-DIPPED GALV. AND 3 WETLAND #1 B SPILLWAY PLUNGE PUUL VELUCIIY UISSIF'AIUK
2 WETLAND #1B PLYWOOD WETLAND BAFFLE WALL BITUMINOUS COATED 4 #I B DRAWDOWN ORIFICE PROJECTN00713
C451 SCALE: N.T.S. mP) C451 SCALE: N.TS. C451 SCALE: N.T.S. SHEET NO.
PLAN VIEW
C451
©COPYRIGHT 2007 THIS DOCUMENT AND THE DESIGN ARE THE PROPERTY OF HORVATH ASSOCIATES, P.A. ANY REPRODUCTION WITHOUT PRIOR WRITTEN CONSENT IS PROHIBITED

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~ ~ ~ ~50' ~TREAM BUFF1 R ~ ~ 1 , - i - } - i ~ ~ VARIABLE ~IDTH J ' ~ ~ i ~ , ~ ~ ~ ~ ~ ~
(jO~OF NK) ~ ' i J / ~ \ S'Tp RMWf},'fER ACCESS / , 1 }
~ fr j
~ , i r 1~, r~ f ~ j ~ ~ r I ~ ; ~ ~ 1 ~ I ` ~ ~
O' \ i \ i
~ , ~ ~
~ j \ I \ ddd
, 6 j ~ ~ao,. ~ ~ H O RVATH
o \
~ o ti'~bb~ o ~b~~ ~ ~ ~,~,o ~ I \i~ ASSOCIATES ~ ~ ~ . \
b` ~i~~~ r ~ ~ Q t~ y,~ N L QLE l 62.b~\ ' , ` ~ 1~. ~ I ~I I~ o
9 d6 g,, i b CONSULTANT PLACE, SUITE 201
I o ( ~ ~ ~ 'o p SEE PLANT LIST ~ ¦ DURHAM, NORTH CAROLINA 27707
(I m ~ ~ ~ ~ ~ o] ~ FOR DETAIS ~ ¦ P 919.490.4490 P 919.490.8953
E~~filq 4~C 3 I.F. "1 / a~,n ~ ~ ~ ~ } ~ ~ ~ ~ ~ ~ i / ~ 1 s , ~ ¦ 537 MARKET STREET, SUITE LL20
C PEN ~WI ~'I 2" QRIFICE j y m l ~ ~ ~ / ~ o \ 1 ~ \ \ P ~ p ~ m ~ o # % ] a , y ~ CHATTANOOGA; TENNESSEE 37402
U f , / J J ~ ~ ~ , ~ f M i ~ r~, ; ~ , f P 423.266.4990 P 423.266.5700 fJ ¦
DOF15'R ~ ~ rf r ~ ~ www.horvathassociates.com
.-WIT ELh'LHTE W H ~ ~ C" Jx~/ t ~ _ _ ~ - _ j U /
Jjfjtr
:4"~ IFIC INV=62.5 / ~ I ` ~ \ \ ~ ~I I ; 4 ~ j 1 ~
A\ ~ ~ ~ ~ ~ ,
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ I s
15"Q PR ~'5 '~HEA~WALL ~ ( ~ N Ix3~.s~ ' ~ 1 - ("C ~ ~ \l\l C ~ 1 \V~
\ ~~NV BUT - 362.0 \ l \
SPILLWAY' F~ P OL a 1 ~ ~ \ \ ( \ ~ ~ Q ~
VELOC7 Y ATOR 1 \ 1 ~ P~ ~2'~FE~~HANNELLINED 3 \ \ 3 ` ~~lCDOT~P P l ~ \ \ ~IT~~L~cSSB'-RIPRQP~ l~ ~ t a s ate' ¦ ~ U
~
¦ F-
~ ~ .l 1 I'~~f/~
~
' `?w~`~ % / ~ ~ ~ 2 , ~ TEL Mf,R~~ G$A~dE ~ ~ \ \ l o~
~ ~ l ~~o / PLYWOd9,~AFf~LE WAND 1,, ` ~ 1 t ` f~ ~ \ / - y _ ._-CREST ELEV = g63:S ~ ~ ~ "l c
\ y~'~ \ 2' WIDE WEIR `1 ~ ` ~ ~ '
~ , - ELEV - 363.7 k ' ~ ~ • ~ r (
- - ~ f 13' WIDE SIfiA&P ~ ' ~ ~ ~ ~ / ~ ~ ~ ¦ ~ =
` a ` ~ CRESTED WEIR j~ ~ ~ ~ l ~ 1 _ \l
l~E~ ~ N~CR1Y ~ 4' ~ I~K CONCRETEI ~ .-,r "~-CR€ST ELEV =-384.9-- ~ ~ r-- /`'`--~~~L . ~ \ ~ ~ ~ ~ ~ . \ ~ 1~
~~It~tED~ AN~JEL ~SLO~EPRC~~CTION \ ~ f ~ ~y• '
' WETLAND#7
GRADING AND
PLANTING PLAN
WETLAND #7 GRADING PLAN WETLAND a ,5
C452 SCALE: 1 L-so~ 2 LAND #7 PLANTING PLAN 0 15 30 60 ¦
ScA~E:,•=~ N C452 SCALE:1"=30'
SCALE: i"= 30' Al ¦ ~V ¦
¦
¦
¦
¦
¦
¦
2:1 CHANNEL ~ DITCH
SIDE SLOPES (TYP] EASEMENT ¦
¦
-jam ;,i ,
END CAP WITH 70RIRCE -~---III:, m ~ I~-..I 1=
31.F 4' PVC SIPHON
7S PRECAST HEADWALL TOP OF BERM=364.00- BARREL INV IN=362.50 jqp OF BERM ELEV=368.00 I I I : 11= ~ ~ I i [1 I~ -111 ¦
INV = 362.00 15"CAP WITH 4"ORIFICE ' 3 I_I I I_-~ I ~-_I i ~-_I i I^I I I^_I I I-I 3 1 INV=36250 25 YEAR WATER SURFACE ELEV =366.26 ~I ICI IIi-~ ~ 111.-1 I I~ I i I ¦
11~---1(I-~- I I I I~. I ~~~.m.~ I I_~ I II--1 I -.-II- I-I I I----I I I--~1 I (-_:;I I I.... -I i ~---i i I--i I I---I i I----I ~ I-I I-•--I i I--I I' I i I- Iii---I i I----I i I-I i i-i I ¦
BARREL INV OUT= 36200 7 YEAR WATER SURFACE ELEV = 364.81 LINE CHANNEL WITH I I
. , E -III-I (I-III-III-~ I I-I (-III-III-I' (-i T (Al CLASS'(C]' RIP RAP ¦
¦
NATURAL GROUND - 4J L.F. ~S" RCP @ 1.16% POND BOTTOM=36250
¦ I I
- J I I-i I I-III-III--III-III-III-III-III--III-III-III-III-III-III-I I I~' 2. MICROPOOLBOITOM=360.50 2 I-III-I ¦
- =1 11=1 11=i 11=1 I!=f 11=1 11=1 11=1 11=1 11=1 11=1 I I-I 11=1 11=1 11=1 I ICI f f=1 11=1 11=1 11=1 11=1 11=1 I I-I I=__ _ =1 I i=1 11=1 11= ¦ I I
= I-1 I I-1 11=1 I I-III-I 11=1 I i=1 11=1 I I-t I I-I I-1 I I-1 I I-1 ICI 11=1 I I-III-1 11=1 11=1 11=1 11=1 I I-f I I-i I I-III-I I(=1 11=1 I I-III-1 1I- ¦
¦
-1 11=1 I I-I 11=1 11=1 11=1 I I-III-III-~- ...I I i-III-I 11=I I i=1 11=1 11=1 11=1 11=1 11=1 I I-I 11=1 11=1 I I-1 11=1 I= KEY TRENCH (AS SPKIHED _ _
-III-III-III-III-III-l I I-I I = BYG~,~CMNICAL~GINEER,_~ ~ ~ III III III III III III-III-I CHANNEL ID [A] [g] [C] CHANNEL SLOPE ¦ MIN MAX I I
=1 I I-1 I I-III-1 11-1 I i-III-III-III-III-I I i-I 11=1 11=1 11=1 I I-1 I I-1 f 1=1 I-
- I-1 I I-1 I I-1 I I-1 I I-1 11=1 11=1 11=1 11=1 11-1! f~l 11= - DB# 1 B OUT 3' 2' 1 1 11 ¦
DB # 7IN 2' 2' B 1 5 ¦ DRAWN BY: CHECKED BY:
DB # 86 OUT 2` 2' 1 3 12 ' MLJ JES
¦ DATE
¦ 3-25-2008
NOTE: AREA CLEARED TO BUILD BYPASS CHANNELS , scA~E
SHOULD BE SEWN WITH GRASS IMMEDIATELY AFTER AS NOTED
~ur-r~ w ? ~r~ u~ nn A \1/1'1/1\A/\ ~ ~n~r~r.r ~T~ r-r Hint
o 3 VVCILf'~IVV fF/ UtCf~VVUVVVIV VKII"II..C VUILCI 1'It"C zs s ,o CONSTRUCTION OF EACH CHANNEL IS COMPLETE. PROJECT NO.
0 0713
C452SCALE: I"=S SCALE 1"= S
4 CHANNEL DETAIL SHEET NO.
C452 SCALE: NTS ¦ 0452
¦
¦
©COPYRIGHT 2007 THIS DOCUMENT AND THE DESIGN ARE THE PROPERTY Of HORVATH ASSOCIATES, PA ANY REPRODUCTION WITHOUT PRIOR WRITTEN CONSENT IS PROHIBITED

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• v= M B
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¦
13 LF. SHARP CRESTED WEIR ELEV = 364.90
0 ¦
N NATURAL GROUND ¦ H D R VAT H
o 2 LF. WEIR NOTCH ELEV = 363.70 ~
CV O ASSOCIATES
_ N _ r
- - - --I ¦ 16 CONSULTANT PLACE, SUITE 201
4" TYP ( ) DURHAM, NORTH CAROLINA 27707 L. ¦ P 919.490.4990 F 919.490.8953
1 ~ ~ 537 MARKET STREET, SUITE LL20
1 1 ¦ CHATTANOOGA, TENNESSEE 37402 P 423.266.4990 F 423.266.5700
KEY TRENCH AS SPECIFIED ( ¦
BY GEOTECHNICAL ENGINEER) 5.00' 7.5' L X 4.6' W X 18"THICK www.horvathassociates.com
CLASS 'B' RIPRAP
¦
¦
KEY CONCRETE CONCRETE SLOPE PROTECTION ¦
1' IN GROUND (TYP) (SEE BASIN OUTLET STRUCTURE NOTE'D')
¦
¦
¦ Q
Z
¦ 0 J
¦ Q ~
TOP OF BERM ELEV = 368.00 ~ ~ Q
U
¦ ~ 0~
100 YEAR WSE - 366.60 366.60 ~ ~ ~ ' W U Q
¦ _Z
' Z
6.50 2.00 6.50 ' ~ U~
~ Q
~ ~ SHARP CRESTED WEIR ELEV = 364.90 ~ ~ _
WEIR NOTCH p
ELEV = 3b3.70 ¦

~ ~
---------Li
' WETLAND #7
7.5' LX4.6'WX 18"THICK DETAILS
CLASS'B' RIPRAP
D 1 2 4 1
C453 SCALE:1"=2' SCALE: 1" = 2'
a'•a' o.c.
za/a° POSTS SHALL BE EQUALLY
SPACED

0 0
1-3/a" ITYPJ n '1X6 y2 PRESSURE-TREATED ;,:.••f~ • ,t.=• , • ,
MARINE-GRADE ;.,,3~.~.= ~ a°o.c• POST WITH W B TT M a"~:~f~.:::.:~'ti:?>`, .•..h;~i~;?p: SPILL AY 0 0 ` " EPOXY 15" PJ STEEL PLATE TO GROOVE IN 15" 0 RCP ¦
PLYWOOD CEDARCIDE ON ••:?i.'`;•:Yb,,ti,-r'a''•: NCDOTCLASS'B'RIP-RAP ¦ 3 4"0 ORIFICE IN STEEL PLATE INV = 362.5
B$-1 X88 60TH SIDES OF ~ ;:;3`+~xix,;:+;;;. . 7.5'L X 4.6'W X 18"THICK PLYWOOD ;°Y<:?r ~ fix;..,,. .n•.~.'a:" SPILLWAY SIDE • SPILLWAY SIDE ~ I 4" PVC FLANGE EPOXIED TO STEEL PLATE ¦
SPEC) o A A 18"THICK LAYER 1.0 CLASS'B'RIP-RAP SLOPES 3:1 TREATED WITH SLOPES 3:1 MATCHING INVERT OF PVC TO INVERT OF 15"0 RCP
CEDARCIDE /e'xa"CARRIAGE BOLT `"°;i ~p~ 4.6' ~ ~ tr. 'a;..a,
WITH WASHERS '0• 1' 1' a:, v 15"0 RCP INV = 362.5 ~
HOT-DIPPED GALV. ~ ^~".v ,••Y,i~'•R SPILLWAY SIDE
AND BITUMINOUS •y'~° E is 1.5' SLOPES 3:1 1' 0 0 0 o COATED (TYPI RCP @ 1 . ~ 6~ 4" PVC 45 DEG ELBOW ' ¦
TOP OF GRADE - NORMAL POOL ELEV = 362.5 I I
~ A .I i <•~'ti:~:?~~~.~.::• :t. 4.. FILTER BLANK
~ ~ 2 4" PVC CAP WITH ¦
• • SPILLWAY SIDE ~ ~ ~ 1 2"ORIFICE ¦ I I
' SLOPES 3:1
2.7 a a'~ a IB"MIN ' ~q.• PLAN
CONCRETE ..a...:~,:,;.,.;.
. •Q BASE ny„ NOTE: "`w"•°'$s:".~ .a• y<` ~ 7.5~ A HLTER BLANKET SHALL BE INSTALLED BETWEEN THE RIP-RAP E RIP-RAP ~ ~ ; MICROPOOI BOTTOM ¦
;~;.,._~=~••;''A';~, 1'" ri` ~ 1' AND SOIL FOUNDATION. THE FILTER BLANKET WILL CONSIST ~ ~ ~ ~ ELEV = 360.5 CONSIST I I
~ ~ ~ 3"`'R~;'rw~t`''~'.'~:<'~^ OFAMINIMUM4'"THICK LAYER OF STONE(NCDOT#57J ~ . ~ ~ , ~ UNDERLA?N WITH MIRAFI FILTER WEAVE 700 OR APPROVED PROVED .___-~__-d.. E ~ . ~ II~ ...M. ~ ~ ¦
1' • ~ EQUIVALENT.
Y2' MARINE•GRADE PLYWOOD }~"MARINE-GRADE PLYWOOD SECTION VIEW (BS-1088 SPECI TREATED WITH CEDARCIDE BS-1088 SPEC TREATED WITH CEDARCIDE
( I 4" FLTER BLANK
PLYWOOD JOINT DRAWN BY: CHECKED BY:
2X6 PRESSURE-TREATED POST SECTION A-A ¦ MLJ JES
WITH CEDARCIDE (Tl'P) ~ DATE
¦ 3-25-2008
¦ SCALE
x 4"CARRIAGE BOLTS AS NOTED
WITH WASHERS / _ \ . . ¦
HOT-DIPPED GALV. AND 3 WtILANU 4/ SPILLWAY VLUNUt VUUL VtLUUIIY UlJNVAIUK ¦ PROJECT NO, 713
2 ""~WETLAND #7 PLYWOOD WETAND BAFFLE WALL BITUMINOUS COATED C453 SCALE: N.T.S. 4 WETLAND #7 DRAWDOWN ORIFICE
(n'P) C453 SCALE: N.T.S. C453 SCALE: N.T.S. ¦ SHEET NO.
PLAN VIEW
C453
©COPYRIGHT 2007 THIS DOCUMENT AND THE DESIGN ARE THE PROPERTY OF HORVATH ASSOCIATES, P.A. ANY REPRODUCTION WITHOUT PRIOR WRITTEN CONSENT IS PROHIBITED

¦
HEADWALL ¦ r \ NCDOT CLASS'1' RIP-RAP
20'L x 23'W x 24'THICK ¦ 1 ~~;i P
r /r ~ D~ EP C0N~? ETF{ c' J ~ ` ' /'11 / ~ 'l - ~ ` ~ ~ ~ `
A a; A 23' ' ~ 2 2 ¦ 1
- ~ ~ / //,mar ~ f/ ~ / ~ ~ `1~ ` \ ` 24"THICK LAYER ¦ ~ ~ ~ 7 CLASS'1'RIP-RAP =t
} " !
4"FILTER BLANK ~ ¦
30"f0 RCP ` % w•
~ GPILkWAY N~P OL / ~ \ ~--~i ~ y 9'7~ I ~ I
201 • ( € I PLAN ~
ROL ~ HEADWALL ,
i 7~3'f.X9/.4'WX1~fTf-1~ S _ I ~ ~ T) r V~IL~CTY[~13SIPAE~OROL~
/ / ~ I n I ~ ~ f f ~Y NC~D~1~~B' RIPRAY2 j NOTE: x A FILTER BLANKEf SHALL BE INSTALLED BETWEEN THE RIP-RAP
2:1 AND SOIL FOUNDATION. THE FILTER BLANKET WILL CONSIST ¦
f r Jk~1~K~Ef~~ CR E ~,~a uE E ~ 1 j I 7.5~ X d a ~C ~s° THICY~~ 30" f0 RCP s` OF A MINIMUM 4"THICK LAYER OF STONE (NCDOT #57) ¦ UNDERLAIN WITH MIRAFI FILTER WEAVE 700 OR APPROVED , H Q R V AT H
I ~~OPEpRO~CRONATYP / / o/ o ~ ~ I ~ iv ti,"" a~, y EQUIVALENT.
` / ~ i^' ~ ASSOCIATES
~5" PRLGA~ST / j 1 L ~ '~p0~ m ' ~ ~ ~ o ° 2' DEEP ANNEL LifQ~Q / ~~1V 0 / / ~ o 'o"._,_- ~ 4' S ~ ~ ~ 1 m ~J WITH CL ~71`_BIPtReP , LINEGQ~ 20 SEENOTENKEf ¦ I I 16 CONSULTANT PLACE, SUITE 201
pP•\\\ SECTION A-A ' DURHAM, NORTH CAROLINA 27707 ¦ P 919.490.4990 F 919.490.8953
3 HW 13 PLUNGE POOL WITH VELOCITY DISSIPATOR 537 MARKET STREET, SUITELL20
i ~ f ~4p2 ~LF 15'1QJ ~2 / ~ o .e f ~ ~ ~ ' ~ ~ ~ ~ / ~ , C454 SCALE: N.T.S. ~ CHATTANOQGA, TENNESSEE 37402 / P 423266.4990 F 423.266.5700
i
~ ~ 5 X x`~ ~ -1 R RED \ o ~ ~ C ~ ( , _i f - 'G~ ,~~.o Yx ~ ~1 ~ ECTI N N~V= I ~ ~ ~ ~ ~ ~ ¦ www,horoathassoclates.com
\ ~1 ¦
• ! ~ FLARED END SECTION ¦ t NCDOT CLASS'B' RIP-RAP
7.5'lx9'Wx18"THICK ¦
y a 1
Q ,/NORM OOL E .0 I ^ ~ m ` 1, 3~ W I E / A A 9' ¦ ES[~I 2, 2' ~
.2.' ~ ~ 18"THICK LAYER
CAP EMD'.PJ1-f l~ CP 6 s~ aaeo 3 1 P U SIPA 1 ~ X~oS y ~ ELIEV - 3~ .2' ~ 2 CLASS'e' RIP-RAP ¦
'Cdt'FH'ST€EL PL/~I`E WI X0'0 + m ~ )o ~ I ' 12' ANIDBS ~ RP RP ~ ~ ¦ Z
' l 4"~ ORIP~ ~1V = .0 / asz.o ssau ase. 24" R P ~ i x~ / o o CI~ESTE[~ WEIR": ~ 1 4"FILTER BLANK
~j.1 15"00-RING RCP ¦ ~ O
TEN 4"' PV ,moo ~ I I 33'' ~ I 3 CJ2EST F~LEV ~~33~.1
Cp;P ENb H 1 TA L MA INE ft 7
3s?o ~m YW~JOD ~AFPLE~ t~. ~ \ PLAN ' Q ~ Q U
~ ~ . _ f ~ ~ ~ / f RE~T ELEV = 335.2 ~c,~ 2 FLARED END SECTION ~ Q =
NOTE: ¦ ~ ' A FILTER BLANKET SHALL BE INSTALLED BETWEEN THE RIP-RAP
r-~' / ~ .E ~ 5~ ~ I I r I ~ 15~~ PRECAST~~. \ a 2:T AND SOIL FOUNDATION. THE FILTER BLANKET WILL CONSIST ¦ ~ _
CAST \ 15" 0 0-RING RCP OF A MINIMUM 4"THICK LAYER OF STONE (NCDOT #57) W U O
~ r--~ / ~ / ~ HE~DWALL ~ ' ~ / / ~ \ ! ~ ~ INV T = 333.0 -L UNDERLAIN WITH MIRAFI FILTER WEAVE 700 OR APPROVED ¦ Z Z • ry~^~ 4~; " ~3w EQUIVALENL
333.0 ~ N ~ ~ ' Cn
1 \1 "
2' ~ 7,5' FILTER BLANKET " Q ~
~ ~ / ~ - . f ~ ~ ( r ~ 1 RCP C~ 2.77% 77% (SEE NOTE )
SECTION A-A ¦ ~ p
'l / ~ 'r \ / ' 3 CAP ~D O~ 15)' RCP r!' .P ¦
4 FES 97 PLUNGE POOL WITH VELOCITY DISSIPATOR
~ ~ ~ ~ ~ ~ ~ I ~"~{~oas) ~ ~ ~ / / I l l WkTfi-STEEL-PCATE WITH /
~ ( J ~ / ,/4 Qt, Q1~IfICE INV 334.Qj~ ~ 3T4 1 0454 SCALE: N.T.S, ¦ 3
sfi`~ 2-s!a' POSTS SHALL BE EQUALLY ¦
/ ~ ~ ~ ~ ' //r~~ .-CAP END WITH 1 V.14`.,, QRF~I J
r ST~O VAT ~BLEC IDSS / ~ ' ` \ ~ \ ~ , I ~ ~ / SPACED
f ~ EfjSfMENT (TYP) / . ` / / f/f j ~ / ~'`J / 1 9!B" ITYP I y ~ o o ~6 Y~"MARINE-GRADE PLYWOOD J~" MARINE-GRADE PLYWOOD 6~ WETLANDS ^'r"/ J,r•'' IBS-1088SPECI TREATED WITH CEDARCIDE 18$•1086 SPECI TREATED WITH CEDARCIDE
PRESSURE-TREATED 8A A N D# 8 B ,r MARINE-GRADE POST WITH PLYWOODJOINf 8"O.C, PLYWOOD CEDARCIDEON
/ BOTHSIDESOF 2xbPBESSURE-TREATED POST ' GRADING P LA N
1 1.2Q' ° (SPECIE o PLYWOOD WITH CEDARCIDE (11'Pt ¦
~ f TREATED WITH
` ' / ~ ~ ~ ~ f S0'STR BWFFE f f J~ CEDARCIDE ~"x4"CARRIAGE BOLT ¦ j / WITH WASHERS ~"xa"CARRIAGEBOLTS
p HOT•DIPPED GALV. WITH WASHERS ~ AND BITUMINOUS HOT•DIPPED GALV. AND
0 0 0 o COATED (1YPI BITUMINOUS COATED ,O TOP OF GRADE fn'PI ¦
~ X11
„ • ; I I" ,k . I' PLAN VIEW ¦ 4
w ~ ~ ~
2'-T a ~ 18"MIN ¦
WETLAND 8A AND 8B GRADING PLAN o 15 • CONCRETE ¦ •s ,r BASE
5 WETLAND #8A PLYWOOD WETLAND BAFFLE WALL ¦ . ,
C4J4 SCALE: I"=30'
SCALE 7"= 30' a , ~ , " ~ C454 SCALE: N.T.S. ¦
SECTION VIEW ¦
¦
LIFTING HOLES -
¦
¦
bJ ~
C 4'-11" ~ TOP VIEW
¦
WETLAND # 8A . 2 ~ r-~ - - - - ~ - _ 2
19
~ TRASH RACK - ¦
TOPOFBERM&EV=352.00 - - - - 15" RCP TO BE GROUTED ¦ INTO HEADWALL AT
JOBSITE BY CONTRACTOR ~
1 - _ i' ~ ( ~ - YY
WETLAND # 8B • ~ ¦
~I ~ - I_ I- _~I 1 ~I I I I ~M ~
- ~ - IA ' ' ~ - 1S'RARED END END i "
i i~ I I _ ~ I ~ -I - - I SKTION INV =337.00 NV =337.00 TOP OFBERM '
ELEV = 338.00 t 7
I - - - ~ ( - - _ _ _ lO YR i _ _ I I_ roRe - --i - - - i ~ - ~ _ - - - - - ~ - -h I - - - ~ - I T - 1 I ~ _i ~ _ _ - _ I - - ~I - - 10 YR WSE = 336.39 I-`" ¦
i ~i e µ . l I ~L~I I ' 1 ~~I I'- 6~~ FRONT VIEW "
FOREBAY BOTTOM ~I ~ I I ~ ~ SIDE VIEW 15"RCP ~
ELEV = 331.00 I _ -,°I ~ ¦ I I
I ---1 T I I I I- f I NOTES:
_ I_ 1 L I I TI~ E I - ¦ I- I I . ---I 1. ALL CONCRETE TO BE 4000 P.S.I.
I I , - -I _ I ~I-i' 2. REINFORCEMENT STEEL MEEfS ASTM 615 GRADE 60 WITH 7' ¦
I 4 J I~ I ~~~M I MIN. CLEARANCE. " ,.L . ~ 3. REINFORCEMENT SET 12" C. ON C. COTH WAYS TYPICAL.
I I - T ~I~I _ -_11 - - - ! - - - - - - I R I °I - DRAWN BY: CHECKED BY: 4. ALL EXPOSED EDGES CHAMFERED 3/4".
I I I ' 5. PIPE TO BE GROUTED INTO HEADWALL AT JOB SITE BY ¦ MLJ ,J ES CONTRACTOR.
6. PRECAST HEADWAII STRUCTURE SHOULD BE POSITIONED ~ DATE
AROUND AN EXISING PIPE OR PIPE INSERTED INTO HEADWALL. ~ 3-25-2008 HEADWALL STRUCTURES SHOULD BE PLACED ON A PREPARED
FOUNDATION AS SPECFIED BY THE ENGINEER. ~ SCALE
7, COMPACTION OF BACKFILL MATERIALS SHAH BE AS AS NOTED
REQUIRED BY THE ENGINEER. ¦
8. VARRIOUS HOLES SIZES & SHAPES AVAILABLE BY SPECIAL PROJECT NO.
ORDER ONLY. ¦ 0713
2 RSER 96 TO FES 97 PROFILE ¦ SHEET NO.
C4J4 SCALE: 1"=10' 0 5 t0 20
SCALE: 7"= 70' r6--~PRE-CAST HEADWALL DETAIL
C454 SCALE: NTS C454
.
©COPYRIGHT 2007 THIS DOCUMENT AND THE DESIGN ARE THE PROPERTY OF HORVATH ASSOCIATES, PA ANY REPRODUCTION WITHOUT PRIOR WRITTEN CONSENT IS PROHIBITED

¦ S ~ 4'-0" O.C.
2sla^ POSTS SHALL BE EQUALLY ¦
SPACED
3" ¦
~ - ti ~ ~ 0 o J~"MARINE-GRADE PLYWOOD .,~~,a.... " 1.318"(TYP.I y~~ ~6 (BS•1088SPECjTREATEDWITHGEVARCIDE ~~~~RINE-GRADEPLYWOOD T (BS-1088 SPEC) TREATED WBH CEDARCIDE ¦
MARINE-GRADE PRESSUREaREATED `'tia B"O.C, POSTWITH PLYWOODJOINT ¦
PLYWOOD CEDARCIDE ON ~ (BS_1088 BOTH SIDES OF 2x6 PRESSURE•TREATEDPOST ;r`
1.20' o SPEC) o PLYWOOD WITH CEDARCIDE (TYPI ¦ "
> /r f -Diu I/ , ~ ~ 1 ~°~1` TREATED WfiH '
CEDARCIDE ¦ x 4"CARRIAGE BOLT ' x 4"CARRIAGE BOLTS ~ WITH WASHERS ~ WITH WASHERS ¦
HOT-DIPPED GALV. AND BITUMINOUS HObDIPPED GALV. AND > '
I o q - o o COATED (TYP) BITUMINOUS COATED ¦ TOP OF GRADE fnPl
'6. a• ~:I ~ I` 'I PLAN VIEW
' ¦
r- , fir/,; ~ ~ , / ~ ~ 2.2 a 4d ' ~ 18"MIN 'a4..
' CONCRETE ~ ¦ -
a' ,.a•d BASE fi: , . 3 WETLAND #8B PLYWOOD WETLAND BAFFLE WALL H 0 RVATH
~
; ~ / ~o ~ ~yo ,moo ~ , ~t 1 ~ ~o ~ ~ ~ \ ` ° ~ a ~ a • ~ C455 SCALE: N.T.S. ¦ . ~ ¦ ASSOCIATES
/ / 1)'. / SECTION VIEW
\ ¦
~ o: _ 16 CONSULTANT PLACE, SUITE 201
4 NOTE: PROVIDE STEPS 3 ¦ DURHAM, NORTH CAROLINA 27707 . ~ C457 ON INTERIOR AND C,~6 TRASH RACK ¦ P 919.490.4990 F 919.490.8953
\ EXTERIOR OF RISER PER
NCDOT STD. 840.66 ¦ 537 MARKET STREET, SUITE LL20 (SEE DETAIL) CHATTANOOGA, TENNESSEE 37402
/ ~ , ELEV = 34B.1 ¦ P 423.266,4990 F 423,266.5700
/ ~ J --sa R ~ 1~ / f TOP OF RISER
~ ' ~p~'` ~ NOTES: ¦ www.horvathassociates.com \ ~ ~ 1 4 1. RISER STRUCTURES WITH MULTIPLE SECTIONS SHALL HAVE GASKETTED JOINTS ¦
C456 STERE^LPANCHOR AND SECURED BY STAINLESS STEEL STRAPS (SEE CS/451
a"~ 2. EACH STRAP TO BE SECURED TO MANHOLE RISER BY (2j 3'kl/T ¦
POND BOTTOM ELEV = 347.0 GALVANIZED STEEL CONCRETE ANCHOR BOLTS AND COATED WITH A ' _ - w~ BITUMINOUS COATING. ¦
I f 3. SECURE 4EVENLY-SPACED 1 Tx4'kl/8" GALVANIZED STEEL STRAPS AT EACH ¦
\ v ; ~ ~ ~ ~ I-~ ~ ~ ~ ; , ~ I . JOINT OF RISER SECTION.
p / 334.0 5 ~ j ~a~.o 3~ ~ m EE LA T LIS \
~T~ i ~ o.- o ~ ~ ~{~OR ETN/~ILS ~ ~ ~ ¦ ~ =III= Z
/ 356.0 358.0 I s I ' .0 O ~ ~ 1 ~ t ` ` ~ 15"0 0-RING RCP ¦ Q J
334 .I~~ I,.P ~ ~ ~ -icci Q ~
,moo ~ ~ 3' ~ , ~ ~ ~ 1~ ' 1 1~ ~
BARREL INV. IN = 338.60 ¦ / 0
60" HIGH EXTENDED f.f..
~ ¦ N ~ ~ BASE MANHOLE SECTION : f.f.. O
W ~ Z
z
~ f~ ~ / / j ¦ ~ UQ
4 OUTLET STRUCTURE p =
11 C455 SIDE VIEW (N.T.S.) ~
L' i/ ¦ ~
,
¦
i ' ¦
'~~~p ¦
/ r SPILLWAY BOTTOM 1:.~'.pf`.,: =s',e,~~-~;~. / ~ •.;,x~,~.'.`,,;,•.: '~~;b',' b' NCDOT CLASS'B' RIP-RAP
.r ~;:ps~;~~ ;3:~~;"i~=;~/Y~_;V., 7.5'LX9.4'WX1 / 4'~~`' ¦ `'y,. 8"THICK v<;~,:o:~z.~:..:-..; r WETLANDS " 1 ,,g;:.`.A . ;;:~us~... SPILLWAY SIDE
/ A ~ a. Q:.•.~. A 18"THICK LAYER
~4. CLASS'B' RIP-RAP SLOPES 3:1 ¦
a~-~~~k~~~ 9.4' #8A AND #8B
' a 1' 1' PLANTING PLAN SPILLWAY SIDE , ¦ ..{e: ii . ,n
$LOPES3:1 ; °~'aa;~ 1 t :p18
: 1 ~ l / f ~ err ~ ~ i f a ¦
Y C ~ ~ R a Y
~ ~ / ° ' ~ ~ " 4"FILTER BLANK G,
SPILLWAY SIDE >'xt~s~.i:~r°;a'.;;s`~ ~o.;'s;•,w~, f I ¦ SLOPES 3:1
¦
PLAN .....::~>.,,w
WETLAND #8A AND #8B PLANTING PLAN o 75 ~ ~ ^,z;: ~>,r~,~„. NOTE:
C455 SCALE: 1 L-ao~ ;..a; .,r°, , A FILTER BLANKET SHALL BE INSTALLED BETWEEN THE RIP-RAP :.1'?" :u~::; y:;~.,~„ 1' AND SOIL FOUNDATION. THE FILTER BLANKET WILL CONSIST , "F.~ ¦
s;,'$';;"''<'~'"" ,:<G~':'"' ~ OF A MINIMUM 4"THICK LAYER OF STONE (NCDOT #57) ~R, , F~~a;ti~:;, 1 UNDERLAIN WITH MIRAFI FILTER WEAVE 700 OR APPROVED ¦
SCALE: 7'= 30' - 1 ~ EQUIVALENT.
~ ¦ r:
4"FILTER BLANK I . w;, " ¦
¦
SECTION A-A ¦
¦
¦
END CAP WITH I-I/4"ORIflCE 5 WETLAND #8A SPILLWAY PLUNGE POOL VELOCITY DISSIPATOR ¦
3 LF 4"PVC SIPHON C455 SCALE: N.T.S,
&4RREL INV IN =347.00 ¦
1S' PRECAST HEADWALL TAP ~F BERM -352'00 15" CAP WffH 4" ORIRCE TOP OF BERM ELEV = 352.00 ¦
INV =306.00 I INV = 347.00
3 I~-~ (I-I i I-III 3 ~ -I i I-III- ~ I I-) i I I (i IPI I I ~ 25 YEAR WATER SURFACE ELEV=36626 ¦
BARREL INV OU7=346.00 =I I (-I_.I-III-I (I- -I m ~Y~R WATER SURFACE ELEV =318.88 ¦
¦
EPOXY 15" fd STEEL PLATE TO GROOVE IN 15" 0 RCP ¦
42 L.F. 15" RCP @ 2.38% POND BOTTOM =347.00
NANRAL GROt1N I ~ ~ 2 MICRO POOL BO1TOM=345.0 ~ I I-III-) ¦ I I 3 4"0 ORIFICE IN STEEL PLATE INV = 347.00
I~-III-I ((-"'-1 I I-I i I-"'-" ~-III-I ~I i I-" I-I ~'I (-III-III-I' I ~ ~ AI I I-) 1 4"PVC FLANGE EPOXIED TO STEEL PLATE ¦
= I 1=1 11=1 11=1 I I-III-I 11=1 I i-III-I 11=1 11=1 11=1 11=1 11=1 I I-I 11=1 11=1 11=1 11=1 11=1 11=1 I I-I i I-1 11=1 I(=1 11=1 11=1 11=1 I I-1 11=1 11=1 I I-I 11=1 I I-III-I I i-III-I 11=1 11=1 11=1 11=1 11==1 I I^I I I-1 I I_=1 11=1 11=1 11=1 11=1 11=1 11=1 I(=1 11=! 11=f 11=1 f 1=1 11=1 I I-1 11= <a , o - s ~ ~ MATCHING INVERT OF PVC TO INVERT OF 15"~ RCP ¦ I
4, ~ a Y ' aq 15"0 RCP INV = 347.00 ¦
' - ! I-1 I I-f I I-III-III-III-III-I I-III^i I I-III-III-I i ~'KEYTRENCH(ASISPECIRED~' -I "-I ((-I (I-III-III-III-III-III-I
-III-III-t 1 I-III-III-III-III-III-III-III-I -500'= ~=BYG~~HN;~L~G;N~I I I-III-III-III-III-I L I-III-I I I- 15' ~ RCP @ 2.3 V /0 4" PVC 45 DEG ELBOW I I ¦
I I-1 I I-1 I I-III-III-III-1 I I-I I!-III-I 11=1 I I-III-III-I 11=1 11=1 11=1 I I-I 11=1 I I-1 11=1 11= NORMAL POOL ELEV = 347.00 ¦ ~ ..a , .6.. .Y tq• F
R, 'f -,d ~ f
=1 I I-1 11=1 { I-III-III-III-III-III-1 11=1 11=1 I I-1 I I-I 11=III-1 11=1 I I- - ~ ~ 2 4" PVC CAP WITH ¦
- =1 I I-1 I f-1 I I-1 11=1 I I-111=1 I I-1 I i-1 I I-1 I I- ~ .,....,w, 1 1-1/4"ORIFICE ¦ I I
¦
~2 1 0~ ¦ DRAWN BY: CHECKED BY:
MLJ JES ~ ~ ~ MICROPOOL BOTTOM
~ ELEV = 345.00 ¦ DATE 3-25-2008
¦ SCALE
j-
I ~ ( ~ I ~ ~ ~ 1 ~ ~ ( ~ ~ ~ I ~ I ~ ~ ! ~ ¦ AS NOTED
0 I I I I~l i l" mm 1 1 1 ____I ! I___ I I _ `i l I I i ~ I i f_ 1~ ¦ PROJECT '
r2-\~WETLAND #8A DRAWDOWN ORIFICE OUTLET PIPE C4J5 0 2.5 s w
¦ SHEET NO.
SCALE: I"=5'
' SCALE: 7"= 5' r6-'~WETLAND #8A DRAWDOWN ORIFICE '
. 0455 C455 SCALE: N.T.S.
¦
*COPYRIGHT 2007 THIS DOCUMENT AND THE DESIGN ARE THE PROPERTY OF HORVATH ASSOCIATES, PA ANY REPRODUCTION WITHOUT PRIOR WRITTEN CONSENT IS PROHIBITED

¦
¦ ~
¦ r,~
¦
TOP OF BERM ELEV = 352.00 ¦ ~
o.oo~
¦ If
3 ¦ ~
3
¦
1 ¦
15 L.F. SHARP CRESTED WEIR ELE NATURAL GROUND SPILLWAY BOTTOM = 347.00 .D WEIR ELEV = 348.60 ¦
¦
POND BQTTOM = 347,00
H 0 RVATH
4(TYP) ASSOCIATES
¦
o.
¦ 16 CONSULTANT PLACE, SUITE 201
> > QURHAM, NORTH CAROLINA 27707 ~ P 919.490.4990 F 919.490.8953
i ¦ 537 MARKET STREET, SUITE LL20
7.5' L X 9.4' W X 18" THICK KEY TRENCH (AS SPECIFIED CHATTANOOGA, TENNESSEE 37402 ER) ' P 423.266.4990 F 423.266.5700
CLASS'8' RIPRAP 5.00' BY GEOTECHNICAL ENGINEER) ¦
www.horvaihassociates.com
¦
CONCRETE SLOPE PROTECTION KEY CONCRETE
(SEE BASIN OUTLET STRUCTURE. NOTE'D') 1' IN GROUND ~TYP) ¦ ¦
SIDE VIEW ¦
¦
¦
Q ¦ Z
¦ p
¦ Q~
TOP OF BERM ELEV = 352.00 ¦ ~ ~Q
J ~ ~ _
=O
U
\ \ ~ ~ 100 YEAR WSE =349.73 0 ~ - 15.00' ~ - Z Z ~ U ~
\ ~ ~ SHARP CRESTED WEIR ELEV = 364.90 Q ¦ 0
o~
~
\ o

~
7.5'LX9.4'WX18"THICK
' WETLANDS #8A
CLASS'B' RIPRAP AND #8B
DETAILS
FRONT VIEW
WETLAND #8A SPILLWAY OUTLET o 2
C456 SCALE: 1°=2~ SCALE: 7"=7
6.3' DIA. REBAR RING ~
4.1' DIA. REBAR RING ACCESS GATE
63 Lfr2 HdD CAP WITH 1-1/4" ORIRCE 6.3 LFxTx2'ki /4"ANGLE ¦
1.0' ¦
3"x112" BOLT ~
3 LF 4"PVC SIPHON ELEV. _ BARREL INV IN = 334.00 75"PRECAST HEADWALL ELEV. =341.60 0.50' T~~
0.50' ¦ (TOP OF RISERS ~ ~ • a. ,e ¦
1S CAP WITH 4" ORIRCE INV =333.00 (TAP ~ TOP OFBERM =339.00 TOP OF BERM EIEV =33HAU INV = 334.00 3 #4 REB 25 YEAR WATER 7 YEA& WATER 3 I 7 #4 REBAR (TYP.J #4 REBAR ~ ' a ~
¦ 0.73' • ~ ,
BARREL INVOUT=333.00 SURFACE EIEV=336.06 SURFACE ELEV=336.70 1 I I-) i I_,I i I-I I(-) 11-~ I I-i
-
POND BOTTOM=334.00 36 L.F. 15" RCP @ 2.77% -~k.' RISER JOINT
CENTER STRAP ~ d
~ -i ELEVATION VIEW oN RISER JoINr • .aw ..Y , .,q 6 ~
-C C I-III-I' -2- MK~~~aon~,.~.~ 'I-III-I I I_I I I-I I i_I I I-I I = _ = NATUR~GROUND '*~~,••as"~_d ffi I 3"x112"BOLT ¦
i 1=1 I I-f i I=__==1 I i-III-I i I-I I i-I 11=1 l I-I 11=1 11=1 I I-III-III-i I I-III-iIII-III-I 11=1 I I-I 6.3 LFX2"X2"X114" ANGLE - 4' DIA MANHOLE ~ ~ ° ~ • . ~ I
~I I A~ f (-III-" ~ -"'-III-I i ~-I (I-III-III-"'-) I I-! III I-III-I (~-I ~ 1-III-III-III-) I I-I ((-I I 6.3 LF%T'X2' -III-I I I ~ ~I I II ~ ~I I II I I~ ~ ~I I II I II I II I II I I~ s = III _ _ ~I I II I II I II I II I II I II I II I II I II I II I II I II I II I II I II I II I II I II I II I II I II I II I ICI I I-III-III- «4RE~RWE -III_-III-III-III-III-III-III-Iii-III-III-III-III-III-III-I J I-III-III-III-III-III-1 I I-I I I_ API I=EEN 1==1 I I-1T=1 11-1 11-1 11=1 11=1 11=1 I I =1 RISER :•~..'~„a . , ¦ +
#4REBAR WELDED ~ ~ ~ a. ~ • (TYP) (SEE NOTES) ~ ~ , ~ • I
10°TYP ¦
~ ~ ~ ¦
` ~ ACCESS GATE ¦
`,~4 4.1' DIA. REBAR RING ¦
6.3' DIA. REBAR RING ¦
¦
3.15' ¦ ( I
PLAN viEw ¦
DRAWN BY: CHECKED BY:
N I. A 2.A NOTES: ' MLJ JES
1. ALL REBAR SHALL BE #4 REBAR. 2. ALL REBAR AND ANGLES SHALL BE GALVANIZED WITH A BITUMINOUS COATING. DATE
3. T T 3. THE HOT-DIPPED, GALVANIZED 2'k2'kll4" ANGLES SHAII BE WELDED TO THE REBAR ~ 3-2S-2OO8
TRASH RACK. ONCE WELDED, THE ENTIRE ASSEMBLY SHALL BE SECURED TO THE MANHOLE RISER WITH ANGLES SITTING DIRECTLY ON TOP OF THE RISER. ~ SCALE
AS NOTED
/ A \ CT~CI A Lir`lJr'1D CTD A D ¦
~F 01 LLL !'1IV1.1 IVI\ J I I\ni PROJECT NO.
3 4' DIA TRASH RACK C456 12" x 4- x l/8° GALVIANIZED SCALE: N.T.S. ¦ 0713
2 WETLAND #8B DRAWDOWN ORIFICE OUTLET PIPE o 2.5 5 ,a C456 SCALE: N.T.S. SHEET NO.
C4S6 SCALE: 1"=5'
SCALE: 7"= 5 0456
©COPYRIGHT 2007 THIS DOCUMENT AND THE DESIGN ARE THE PROPERTY OF HORVATH ASSOCIATES, PA ANY REPRODUCTION WITHOUT PRIOR WRITTEN CONSENT IS PROHIBITED

¦
¦
¦ p
¦ f;
¦ p,'
¦ P
~ A.:._ tr:~=nxr'
¦ ~t
10.00' ¦ v
¦
WEIR ELEV = 336.10 3 12 LF. SHARP CRESTED 3 ¦ _o ¦
0 o:
1 3 L.F. EIR NOTCH ELEV = 335.20 0 - o o o ¦
O CV N
A = P NATURAL GROUND N POND BOTTOM = 334.00 ¦
; H 0 RVATH 4 (TYP)
- - - - ¦ ASSOCIATES
o:.
J
16 CONSULTANT PLACE, SUITE 201 d' ¦ DURHAM, NORTH CAROLINA 27707
¦ P 919.490.4990 f 919.490.8953
7.5'LX6.4'WX18"THICK ~ 1 ¦ 537 MARKET STREET, SUITE LL20
CLASS'B' RIPRAP ¦ CHATTANOOGA, TENNESSEE 37402 P 423.266.4990 F 423.266.5700
1 1
KEY TRENCH (AS SPECIFIED SPECIFIED ¦
BY GEOTECHNICAL ENGINEE 5.00 ;AL ENGINEER) ¦ www.horvathassociates.com.
CONCRETE SLOPE PROTECTION ¦
(S (SEE BASIN OUTLET STRUCTURE NOTE'D') KEY CONCRETE
1' IN GROUND (TYP) ¦ ¦
¦
¦
Q ¦ Z
¦ ~ O
¦ Q ~
¦ O Q
Q ~U
• ~ p~
¦ ~ =o
6.00' 3.00 6.00 L
100 YEAR WSE = 336.46 0 SHARP CRESTED WEIR ELEV = 336.1 W ~ Z 336.10 ~ Z
~ U~
WEIR NOTCH ¦ OQ
ELEV = 335.20 ~ ~ ~
~ O
~ _ ¦
~
7.5'LX6.4'WX18"THICK ' WETLAND # 8B
CLASS'B' RIPRAP DETAILS
0 1 2 4
C457 SCALE:1°=2'
SCALE: 1" = 2'
• ~.•.o • w EPOXY 15' ~ STEEL PLATE TO GROOVE IN 15" 0 RCP NOTES: ALL STEPS SHALL PROTRUDE 4"FROM INSIDE FACE OF STRUCTURE WAIL. STEPS DIFFERING IN DIMENSIONS, CONFIGURATION ¢ Z ¦
SPILLWAY BOTTOM " ;;gyap"•;a•~'~s'?'~~+"'„:' %+?~a NCDOiCLASS'B'RIP-RAP OR MATERIALS FROM THOSE SHOWN MAY ALSO BE USED PROVIDED THE CONTRACTOR HAS FURNISHED THE ENGINEER WITH DETAILS O 0 < ¦ OF THE PROPOSED STEPS AND HAS RECENED WRITTEN APPROVAL FROM THE ENGINEER FOR THE USE OF SUCH STEPS.
"'a"~ <; <<`~~:."'~"" 3 4"~d ORIFICE IN STEEIPLATE INV =334.00 ':~•'pi; ;P :•'3:?'•F'~ ,•k?s.,.•A• 7.5'LX 6.4'W:X 18"THICK UO(9z ¦
r•..•, ' . SPILLWAY SIDE i 4"PVC FLANGE EPOXIED TO STEEL PLATE A R..~»,. ~„8...: r ,fit A 18"THICK IAYER I• m ~Z=x I.. r M~ ~ O~Ow ¦
~s ~ka•.: SLOPES 3:1 , MATCHING INVERT OF PVC TO INVERT OF 15"0 RCP q CLASS'B' RIP-RAP , • • : . s ; , t
,;.YS•.. 6.4' 15"Qf RCP INV =334.00 ¦ ~ a ~p~~
51~ a m~ wr> L FQO ¦
SPILLWAY SIDE ';~i``:a.; II ~ ~~18" p 4" PVC 45 DEG ELBOW PLAN ~ ~ ¦
SLOPES 3.1 ~ • ~ 1' ye~Y , a,, ,•M,••, F_' NORMAL POOL ELEV =334.00 PLAN SIDE m N SIDE ELEVATION ELEVATION
W ¦ L~ - CAST IRON ~
yRw°~° a:m~<;~.~~,5,°.::~',«~. 4"FILTER BLANK ~ ~ . ~ 2 °h 4" PVC CAP WITH lour I ~ N ¦
y c ; { 1 1-1/4"ORIFICE I ~ CAST IRON I ELEVATION , 0 Lli ELEVATION Z ~ ¦
SPILLWAY SIDE 3 ~ Q F-
SIOPES 3:1 ~ ~ ~ EE ~ I 13116" A ~ ¦ ~ _ I
PLAN .0' .0' ~ . ~•a,.. #6BAROR Q ~ ¦ I^ 8314" - ~ 11/4" ~ GAL D. ~ N
.•'z ,Y; , MICROPOOL BOTTOM ,;,~<;,"4~;,.,,•r.•. X°5' NOTE: ELEV=332.00 Z v 114 POLYPR P LENE ° Q W ¦
• • A FILTER BLANKET SHALL BE INSTALLED BETWEEN THE RIP-RAP 518" v a PLASTIC y I (
s:'°*}:~ ` ' ~ ~ THE FILTER BLANKET WILL CONSIST 1' _ ;•.,,,fi, ; 1' AND SOIL FOUNDATION. ° ~ ` > OF A MINIMUM 4"THICK LAYER OF STON ~ 0 ~
UNDERWN WITH MIRAFI FILTER WEAVE 700 OR APPROVED PLAN 51DE Z ¦ t/z' SIDE ELEVATION w Q Ua^ " ~ ELEVATION PLAN ~
EQUIVALENT. 1'" - - ~ k ~ i COMPOSBE 0 ¦
REINFORCING STEEL #SD RME - 114" L ROD ¦
4" FILTER BLANK ti NOTE. DRAWN BY: CHECKED BY: ELEVATION SECTION A-A Iz SEOWER MANHOLES SANITARY SNEEiIOF1 ¦
ELEVATION 840.66 MLJ JES
SECTION A-A ¦ DATE
¦ 3-25-2008
¦ SCALE
AS NOTED ¦
¦ rrcwe~.i 0NU.
2 WETLAND #8B SPILLWAY PLUNGE POOL VELOCITY DISSIPATOR (73~~WETLAND #8B DRAWDOWN ORIFICE 713
C4SI SCALE: N.TS. 4 NCDOT DRAINAGE STRUCTURE STEPS SHEET NO. N.T.S. C457
C457 SCALE: N.T.S. C457
©COPYRIGHT 2007 THIS DOCUMENT AND THE DESIGN ARE THE PROPERTY Of HORVATH ASSOCIATES, PA ANY REPRODUCTION WITHOUT PRIOR WRITTEN CONSENT IS PROHIBITED

¦
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N
.fir
~ ¦ F .
•w B ~ ¦
• j ~ ~ ~ ~ s
TLS ~D I~ ~ ~ ~ ~ ~ TLS It
~
1 ~ ~ ~ N 1 }
B6~ I 7 RCP ~ \ BY T RCP ~ 68 :
~ 4 ¦
J
GE ~ ' ~ ~ a ~ ASSOCIATES
,,,.PV lam--'
A Hfi" Rt
f 16 CONSULTANT PLACE, SUITE 201
DURHAM, NORTH CAROLINA 27707 ~ 1 _ ~ I ~ 1, ¦ P 919.490.4990 F 919.490.8953
E ~ ~ I ¦ 537 MARKFf STREET, SUITE LL20
_ - RI IC~ IN = _ _
p0 ~0 0 ~ ~ 6 / f N ~ ~ ~ ¦ CHATTANOOGA, TENNESSEE 37402 3 36b
3~A 36bA ~5U ~ . ~ ~ 0 310.0 ~y8.0 ~y6 364.0 f ~ ~ ~ M t ~ $ P 423.266.4990 F 423.2bb.5700 362.0 ~ \ ~ o ~ ¦
364.0 X20 ~ ~ ~ 3 42S~F ~~rr _ 3 X8.0 ,---""r / ~ o 8~~ 3b0A .o ° ~ 1 ~ ~ www.horvathassociafes.com 358 0 ~ ~
y 356.0 \ \ 354.0 \ \ ~ ~ Ih~ , ~ ¦ 0h ~
_ _ ~ ~ 356.0 3`.~4A ~ - ,u a. ~ ~ 3555' ~ ; 4 ~ ~ ~ ¦ \ hb l A
355.5 ~ 0 f e / f 355„,,,;,.--a 3y + f I'
- r- 3555 J_ -~wu / /A~p, / ~ / f ~ < / ~ ¦ \ ~ hO d m ,u m i
X~ o r
~ ~ ~ NORMAL OL E~=336:0 i~ K..-.,,"' % o . ~ M„3. ~ r / \ _ _ ~ ~o ~ bo / ~ 355.5 35 • ~ , ~ ~ ¦
E 2 ~ 1 / ~ ~ ~ ¦ Q
_ ~_T _ - \ \ - ~zo ~o M~N~ ~ 4" NiICKfCON~EfE _
~ - --'oF~R 62 ~ ~9P~#PgU~CTIO7N''
• 20 ~t' ~ LLB r '
~`WARFAB6E-WIDTH' - _ ~~?.~~I~f5HA72P ~ ~ ~
~olzr~w,~,aE-E~s~-- - '.~C~RESfiE6WEIR- / ,,,i,,~/` ~ - - - ~Y;..~~ O"~,,?' ,~.~.~.w ° "~f~/ , rte' ¦ (.LI ~ Z
` ?_EASEtyEdT - --E~6~ CRESFELEY = 37.9-- ''f f-- ~ % """i ~ - - 5Q'S~RE~M BUFFER ~ ~ - ~ ~ ~ ..-L'WI_ _ ~~EIR ' ~ \ \ ~ - 'w~ ;._~T6P F81~NK) - , NIOI~~~/ C~R~~']y~ ~ - _
~ ~
~

~ ~ \ ) /J/~'' ^~N'WtY'~-PtUNGE.,,P.991_ as ~ ~ / , - - i ~ ~
\ J / ~ VEL~CITY~DISSIPATOR / / ~ ~ ~ \ \ ~ ~ ~i 1 J ~ -"h7~DOT"CL'B~"RI~RAP ~ ~ I ~ 'y-
~ f-7.3`L-X T~b'W X1T8"'THICK ~ ~ ~ ~
WETLAND #9
GRADING AND
PLANTING PLAN
WETLAND #9 GRADING PLAN WETLAND 0 IS 30 60
C458 SCALE: 1"=30' 2 LAND #9 PLANTING PLAN ¦ 0 15 30 60 ¦
score: i'= 30' N C4JH SCALE: P'=30'
SCALE: 1" = 30' ~ I ~ ~V ¦
¦
¦
¦
¦
u
»m p~ (B1IB, ~ ¦ I ~ ~iEHEAtiL s~0°C~S. I ~ s ¦
9 ryf'j p G rp"~l.y W 3 m2~xy N ~p,y }yam. 9 poo
1 C~ 1H TFi"c a fAt~C, FAVEp atI i "~NE°Tr PL~E ~XPAN3Lt9t~ ,TO~H'C3- AT ~'J I " ~ ~ ~ ~ so ~~~vat.~ , a r~~~ ~~~rs '~~a~~s~n~ 1]ITGHES' ABllT I ~4.~(..~ ~ I I ~I I I ~ ~
~ AltiiD flk3.{~GTS. P1,ACED Gr~OCuEia d,p~P1T5 i' gkEP, ~T" 4tT' 1~hf"!°~VALS ~ ~ ih~ Q iI_ k1 1~ g.. ~ taco ~ p~cra
s ~ ~ ~ BETUtE6l4- EXPANSitTN ,~DiNTS. ~ ~ ~ ~~a a r ff =t, I~_°' ~ to u, ¦
'.~~c~ c~sx~~cT w~ ago ~c PR4#Ptl~~CCi~~~, GQ~lG~TE P~~ tiTTGHES ;1I wl l:-,.~~ I1~~....~ ,-)ILA, ~
'~~-+~Y.'~ ( ngya- ~ ~ ~ off' ~s 12T8E~TE13 ~r Tr~c ~r~~z~~~~. ua ~
YT"p O -1 ~a~ DITCH t;~s ~eov~ ~i~ ~~~I~ ~~~a~., I1~~TAt,L TTINTx ~iS~ l~ITGN CI< ~ ~ ~rw~ SI~E9 OF F~vxr~;l=r ~azr~lr~uu wx~~l~ oP a~ A~ alrwlwcr~D ~i 13A~hi,~~,~, .~!t~~"L~Tµ ~'~'~i~ ~.r ¦
y~ ~ fl END CAP WRH I-1/P' ORIFICE ~ > ~ s 81` l'ti~ F.H{3INEER:. ~ M.. ~ w.i
~ ~ ¦
TOP Of BERM ElEV=362.00 3L.F 4"PVC SIPHON TOP OF BERM=362.00
BARREL INV IN = 356.W - 15"PRECAST HEADWALL
IS'CAP WITH 4"ORIFICE 3 3 INV=355.00
~Y~RWAT~ INV=~6.~ ~ I-III-III-III-III-III-III
SURFA~EL~=x.62 1Y~RWA,~ - I I-III-III-III-III-III-III-III-III-III _ CHANNEL SLOPE ~
SURFACEKEV=7.84 - = I _III_III-III-III-=III-III-I I I~I I I-III-III = = ~RELINVOUT=~.~ o z d z, '~.~°~m";s:~R' CHANNEL ID IAl IBl ~ ¦ ~ MIN (%I MAX ~ I I
POND BOTTOM = 356.00
48 L.F. 15"RCP@2.08%^ m= ~ ~ ~~VI~ ~C~~T ~~~~i,~~P~NS~C~I`~~ ~1R}~~1~" DB# 7 OUT 1' 6' 10 30 ¦
volt 1. ~ ~1 cn.. ~ ~ DB # 8A OUT 1' 6' 3 40 ~ p ¦ aT
I I I ~ I I = °~~'='m = 2- I I-III-III-III-III-III-III-If I I-III-III-III-I i I-III-III-III-III-III-III-III-I I i ~ I _ ~TU~ GROUND ~ o DB # 9 OUT 1' 6' 2 40 ~ ¦ I I
E ~ ~ I I
E I
- I I-III-III-III-III-1 I I-I I I_ Y~O,~H' CAP~'GIN~R ' = I 1 I-I I i-III_III-III-III-III-III-III-III-III-III-III-III a
- =1 I I^I 11= I I 1=~ ~ ~ ~ ~ ~-III-I1 I I-III-III-III-III-III-1 11=1 I A=1 I(=1 11=1 11=1 I i-1 11=1 I I-1 I I-1 11- " ~ ~ ~-.six ' Aa~~~ _ ~ ~ I I
~ ~ NOTE: AREA CLEARED TO BUILD BYPASS CHANNELS ~ ~
(I- i (-I I (-III-I ~ ~-li'-~ ~'-I i I-III-I I I~I I-) I I-I) _ - - - N a ~ ' SHOULD BE SEWN WITH GRASS IMMEDIATELY AFTER ~ ~ ¦ DRAWN BY: CHECKED BY:
pp i.~N+a~~~~'~~~_,_~A~~I) ~~'CCH CONSTRUCTION OF EACH CHANNEL IS COMPLETE ' MLJ JES
SNOWTP~G 1'-'~ GiJATAII~ ti~All RE~UII~EO AT EAC~I EN0 ~ DATE
cu~~~~~w.~. =~a ~~w~n ~rc~?'~s ~.ac~~r~a r~sac~bT°~a~n ~ 3-25-2008 ~t;~ T~Ir pt~~ ~~aa ~w~ s`rnuctu~.:~rrT~~~s
TiE ~~.&<' p~i~T~t, 9ta t1&~'~I d~'Tl~£ C~{{iTAiN M~Lf. YAY Bk~ SCALE
e t.~r rc c~ ~o~ o~ ~rn~~~~s. ¦ A$ NOTED
\1/I~TI A \ 111 11A 111'1 A lA/11/1\1/?1 ~niri~r /\I ITT rT 1'1t 1'1r P ~ ~ ~`s~~er a ~ t ¦
3 VVCILHIVU fFy L.JK/\VVVVWIV VICIrII.C VUILCI C'll'C o 2.5 5 5 . 01 PROJECT NO
85U.01 >t3. iii ¦ 0713
C458 scnLE: r'=s SCALE: 1"= 5' ¦ SHEET NO.
(7'~CONCRETE CHANNEL
0458 SCALE;1 "=30' C458
¦
¦
©COPYRIGHT 2007 THIS DOCUMENT AND THE DESIGN ARE THE PROPERTY OF HORVATH ASSOCIATES, PA ANY REPRODUCTION WITHOUT PRIOR WRMEN CONSENT IS PROHIBITED

¦
¦ I~
d .a~.~ iii
¦
¦
10.00' ~ ~ ~t a.:~:~k..,,~r~s..>
¦ ~ - f
3 3 ~ r
1 1 ~
¦
¦
¦
14 L.F. SHARP CRESTED WEIR ELEV = 357.90 NATURAL GROUND '
0
0 1 L.F. WEIR NOTCH ELEV = 357.10 o H~RVATH
o; _ o ASSOCIATES.
¦
4" TYP ~ ) ~ 16 CONSULTANT PLACE, SUITE 201
¦ DURHAM, NORTH CAROLINA 27707 ~ L ~ P 919.490.4990 F 919.490.8953
d
¦ 537 MARKET STREET, SUITE LL20
1 1 ~ CHATTANOOGA, TENNESSEE 37402
P 423.266.4990 f 423.266.5700
1 1 7.5'LX7.6'WX18"THICK '
KEY TRENCH AS SPECIFIED CLASS'B' RIPRAP ~ www.horvathassoclates.com
BY GEOTECHNICAL ENGINEER) 5.00' ¦
¦
KEY CONCRETE
1' IN GROUND (TYP) CONCRETE SLOPE PROTECTION ¦
SEE BASIN OUTLET STRUCTURE NOTE'D') ¦
' Z
TQP OF BERM ELEV = 362.00 ° J Q~
Q ~Q
J ' ~ J=
' ~
_ ~ W ~ p
- . Z Z
~ U ~
0 100 YEAR WSE = 386.45 7.00 1.00 7.00 - i ~f ¦ O Q
~ ¦ °
~ SHARP CRESTED WEIR ELEV = 357.90
i~ ¦ °
= 71 WEIR NOTCH ELEV 35 . 0 ~ ¦
~ ~
¦

~ ~ ~ ¦
_ ~~i
I--------- - ~ ¦
7.5' LX7.6'WX 18"THICK ' WETLAND #9
CLASS'B' RIPRAP EPOXY 15" Ql STEEL PLATE TO GROOVE IN 15" 0 RCP ` DETAILS
3 4"0 ORIFICE IN STEEL PLATE INV =356.0 ¦
1 4" PVC FLANGE EPOXIED TO STEEL PLATE ¦
. ~ ~ MATCHING INVERT OF PVC TO INVERT OF 15"Q) RCP
15"0 RCP INV = 356,0 ~
¦
0 1 2 4
1 I RCP @ 2.08 /0 4"PVC 45 DEG ELBOW ¦
C459 SCALE:1"-2' SCALE; 1"= 2' NORMAL POOL ELEV = 356.0 ~ r
~v,,- I.'. .,24..9 A R k, . ,
2 4"PVC CAP WITH
i 1-1/4"ORIFICE ¦
¦ 3 ~
' --.----12.c' ~ ' I .~-1.0'
~ ~ ~ MICROPOOL BOTTOM ¦
# -ELEV = 354.0 ¦
_-__~._._u ~ I - .
4'A" O.C.
z-a~a" POSTS SHALL BE EQUALLY
SPACED ¦
0 0
1.3/8" ITYP J u 2xb , y2 PRESSURE-TREATED •,~;•:;S;r,••'~'in~~ _ , ¦
MARINE-GRADE POST WITH 4 WETLAND #9 DRAWDOWN ORIFICE _
e°o.c. SPILlWAY60TTOM PLYWOOD ' NCDOT CLASS'B' RIP-RAP CEDARCIDE ON C459 SCALE: N.T.S. ~
p ;~,;•y,y;~~., ,:3~~ rs:'~~~::%i`.~g;. 7.5'L X 7.6'W X 18"THICK BOTH SIDES OF PLYWOOD '~w;~.;,`',?':; ~ y~:'`°r'd'•°•~;'• SPILLWAY SIDE 'iLLWAY SIDE ~
i 10' o SPEC) o A A 18"THICK LAYER SLOPES 3:1 OPES 3:1
TREATED WITH ~ cLASS'B' RIP-RAP ¦
CEDARCIDE a 7.6 /g x 4" CARRIAGE BOLT ¦
WITH WASHERS ~0 1' 1' ~.?•r.: ~ MOT-DIPPED GALV. SPILLWAY SIDE ' ¦
AND BITUMINOUS f:s 1.5'
0 0 0 o COATED TYP SLOPES 3:1 0,,,4;-=.;~. 1' I J TOP OF GRADE ~ 4"' ' °y • ¦ HEADWALL NCDOT CLASS'B' RIP-RAP
d d S ; ..s. ;.;4~ir ••r n 4~ ~ "'.~»~•.:•°:~~~:+:;•:'~:.•a~°,:r. 4FILTERBLANK 15'L x 18'W x 18"THICK ~ I I
»I I r.'^~' ~I 18"THICK LAYER • CIASS'B' RIP-RAP ~
$ nisi t•~,wn.'T •.ii3• e'+''v i,",t•~.y:., ~ • y ~ • .,•t,.. A : A I I 18' ¦
• . SPILLWAY SIDE ' SLOPES 3:1 ~ 2' 2' ,
2~7 ~ 1 "MIN ' ~q.. e PLAN
CONCRETE a~ -•;»t;x..: 2' 1~ I I
BASE Q x"°: re<~.~"~,,y;.,. NOTE: ';':°-'~•;r°~~a.•;:'~;:`~;~.•:.• 7.5' LED EfWEENTHERIP-RAP ~ . ~ . ' . r.>; • n s. , A FILTER BLANKET SHAII BE INSTA L B y,~ IP-RAP ~ ¦
"A "`':,~.'''~•r: ':1' i~'•'.,. • 1' AND SOIL FOUNDATION. THE FILTER BLANKET Wlll CONSIST )NSIST 30"(D RCP R ~ I I 4"FILTER BLANK ¦
• .r <;:;~t;•; -hi;, :>;a : :;ate";•.~:~:: , OF A MINIMUM 4"THICK LAYER OF STONE (NCDOT #57j ~a ~ a )VED 15
' ~ , •A , •.A 1' UNDERLAIN WITH MIRAFI FILTER WEAVE 7000R APPROVED • EQUNALENL ¦
y"MARINE-GRADE PLYWOOD Y"MARINE-GRADE PLYWOOD PLAN ¦
SECTION VIEW (BS-1068 SPEC) TREATED WITH CEDARCIDE (BS-1088 SPEC) TREATED WITH CEDARCIDE 4"FILTER BLANK HEADWALL ¦
PLYWOOD JOINT DRAWN BY: CHECKED BY:
2x6 PRESSURE-TREATED POST SECTION A-A NOTE: ¦ MLJ JES 2.1 A FILTER BLANKET SHALL BE INSTALLED BETWEEN THE RIP-RAP
WITH CEDARCIDE (TYPj 30" O RCP ~`7r AND SOIL FOUNDATION. THE FILTER BLANKET WILL CONSIST. ¦ DATE 3-25-2008
~ ; OF A MINIMUM 4"THICK LAYER OF STONE (NCDOT #57J ¦
a ~ ~ ' ' ~ UNDERLAIN WITH MIRAFI FILTER WEAVE 700 OR APPROVED ) , ~ ~ EQUIVALENT. ¦ SCALE
x 4"CARRIAGE BOLTS AS NOTED
\AIITIJ IA/A CLI[OC .
HOTDIP PED GALV. AND 3WETLAND #9 SPILLWAY PLUNGE POOL VELOCITY DISSIPATOR FILTER BLANKET PROJECT NO.
(SEE NOTE) ¦ 0713
2 WETLAND #9 PLYWOOD WETLAND BAFFLE WALL BRUMIN ~PCOATED ~C--4459/SCALE: N.TS. SECTION A-A ¦ SHEET NO.
C459 SCALE: N.T.S.
PLAN VIEW
5 HW 9 PLUNGE POOL WITH VELOCITY DISSIPATOR . 0459
C459 SCALE: N.T.S.
©COPYRIGHT 2007 THIS DOCUMENT AND THE DESIGN ARE THE PROPERTY OF HORVATH ASSOCIATES, PA ANY REPRODUCTION WITHOUT PRIOR WRITTEN CONSENT IS PROHIBITED