20150234 Ver 1_Site Plan_20150302 (2)

I Ur Ul IJAnn
FES
FLOW PATH
�> -> EXISTING
i� / GROUND
0S4 RIP -RAP OUTLET DETAIL
N.T.S.
8'
EMERGENCY SPILLWAY
CROSS- SECTION
WET POND #4A
BOTTOM EL- 269.00
NORMAL POOL- 274.50
TOP OF DAM- 279.00
TREATMENT VOLUME ELEVATION
10 YR. STORM ELEV - 277.50 TOP DAM - 279.00
1.5 FREEBOARD
EMERGENCY OVERFLOW- 277.50
�? 10' NORMAL POOL- 274.50 10 276.00
t - -
1�1 - 10: TOP SHELF 0.5' ABOVE N.P.- 275.00
' PLACE 4" OF T TOPSOIL ON PLANTED SHELF - 274.00
P1 er.F e^ nF Tnvqnri "�• � FOREBAY ~ FOREBAY DIVIDER „_
VELOCITY REDUCTION PADS
BOTTOM OF POND- 270.00
OUTLET
#
PIPE SIZE
(IN.)
ROCK SIZE
(IN.)
ZONE
ROCK CLASS
LENGTH L
(FT.)
WIDTH W
(FT.)
DEPTH
(IN.)
VELOCITY
VIO
OS4
24
8
2
B
12
6 TO 12
24
7.20
FES 20
24
15
2
1 B
1 12
6 TO 12
24
10.50
OUTLET STRUCTURE GENERAL NOTES
1.
OUTLET STRUCTURE ELEVATIONS
SHOWN ON THE DETAILS ON THIS SHEET
SOFTRUSH
ARE CRITICAL AND MUST BE WITHIN
0.02' OF THAT SHOWN. IF OUTLET STRUCTURES
POT
ARE PRE -CAST OFF -SITE, THE
HOLE FOR THE OUTLET PIPE SHALL BE ENLARGED TO
SPACING
ALLOW UP TO 0.3' OF VERTICAL
MOVEMENT. WHEN INSTALLED, THE EXCESS OPENING
ACORUS SPP
SHALL BE FILLED WITH GROUT.
4
2.
THE OUTLET STRUCTURE SHALL
HAVE A TRASH RACK COVERING THE OPENINGS. SUCH TRASH
3'
RACK SHALL BE 6" OUT FROM THE
OPENING AND SHALL HAVE A MAXIMUM OPENING OF 6 "x6 ". IT
EF
SHALL BE SECURELY FASTENED
TO THE STRUCTURE BUT REMOVEABLE FOR MAINTENANCE.
3.
OUTLET PIPES SHALL HAVE AN
ANTI -SEEP COLLAR OF CONCRETE LOCATED APPROXIMATELY
@
UNDER THE MIDDLE OF THE DAM
IN WHICH IT IS LOCATED. IT SHALL CONSIST OF CONCRETE
+ +
POURED AROUND THE PIPE IN A
VERTICAL DIRECTION. THE COLLAR SHALL BE A SQUARE 8"
SCARLET ROSE MALLOW
THICK AND SHALL EXTEND 18"
BEYOND THE OUTSIDE OF THE PIPE IN EACH DIRECTION.
4.
TREATMENT OUTLET PIPE SHALL
NOT BE PVC BUT OTHER MATERIAL SUCH AS GSP WHICH IS
SPACING
NOT SUBJECT TO DETERIORATION
IN SUNLIGHT.
POND NOTES
4 -6"
1. SEE SHEET 4 FOR BMP CONVERSION SEQUENCE.
2. FOREBAY DIVIDERS ARE TO BE INSTALLED WHILE CONVERTING FROM SEDIMENT BASIN
TO WET POND.
3. GROUNDWATER NOT ENCOUNTERED.
i 'y�
X
I
2
t �2�
/Il
II
HAND WHEEL
(ABOVE TRASH RACK)
POND DRAIN -
ELEV.- 270.00
POND BOTTOM
TOP ELEV.
276.00
4..
SHAFT
BRACKET
.,:7v .­_
r-6" GATE
VALVE
GROUT
BOTTOM
SLOPE TO DRAIN
/
i
/
/
i
/
2'I $ � /
/
\0
NOTE:
WALL THICKNESS AND
REINFORCEMENT DESIGN TO BE
DETERMINED BY PRECAST
CONCRETE MANUFACTURER
DRAWDOWN PIPE
2" DIAM. INV.- 274.50
114'
269.00 24" RCP @ 0.88%
I
268.00
THICKNESS 33.25
" `- CONCRETE BOTTOM LANTI-SEEP COLLAR.
(MIN. FOR ANTI - FLOATATION) TO BE 18" AROUND ENTIRE PIPE
CROSS SECTION OS4
OUTLET STRUCTURE
N.T.S.
GRAPHIC SCALE 1 " =20'
0 20 40 60
TRASH RACK DETAIL
N.T.S.
6"
6 rr ° {..:.. 6
n
L16
TRASH RACK
OUTLET
STRUCTURE
TRASH RACK NOTES
1. TRASH RACK SHALL BE 6" CLEAR OF STRUCTURE TOP AND
SIDES. THE TRASH RACK NEED NOT COVER THE TREATMENT
OUTLET PIPE.
2. TRASH RACK SHALL BE FASTENED TO EACH SIDE OF THE
STRUCTURE AT AT LEAST 2 POINTS. IT SHALL BE EASILY
REMOVED FOR MAINTENANCE OR ENTRY INTO THE
STRUCTURE.
3. TRASH RACK SHALL ACCOMMODATE VALVE SHAFT THOUGH
AN OPENING.
4. TRASH RACK SHALL BE MADE OF DURABLE
MATERIAL WHICH WILL NOT RUST OR DETERIORATE IN
SUNLIGHT AND IS ACCEPTABLE TO THE TOWN OF HOLLY
SPRINGS.
5. MAX. OPENING IN TRASH RACK SHALL BE 6 "x6 ".
6. TOP OF TRASH RACK SHALL HAVE A GRID OF BARS
(MAX. 6 "x6l .
PLANT LIST LITTORAL SHELF PLANT SCHEDULE:
+ + +
SHALLOW
LAND
SOFTRUSH
4
-6"
POT
@
3'
SPACING
+ +
(HERB.)
ACORUS SPP
SWEET FLAG
4
-6"
POT
@
3'
SPACING
+
EF
EUPATORUIM FISTRULOSUM
JOE PYE WEED
4
-6"
POT
@
3'
SPACING
+ +
HC
HIBICUS COCCINEA
SCARLET ROSE MALLOW
4
-6"
POT
@
3'
SPACING
DL
DICHROMENA LATIFOLIA
WHITE STAR GRASS
4 -6"
POT
@
3'
SPACING
HG
HIBISCUS GRANDIFLOURS
VELVET MALLOW
4
-6"
POT
@
3'
SPACING
CG
CHELONE GLABRA
WHITE TURTLEHEAD
4
-6"
POT
@
3'
SPACING
LC
LOBELIA CARDINALIS
CARDINAL FLOWER
4
-6"
POT
@
3'
SPACING
SHALLOW WATER
(HERB.)
GATE VALV
AND POND
DRAIN, SIZi
LANDSCAPE PLAN:
SHALLOW LAND= 1,812 sf (USE 199 PLANTS FROM LIST ABOVE)
SHALLOW WATER= 1,627 sf (USE 179 PLANTS FROM LIST ABOVE)
USE EQUAL NUMBER OF PLANTS FROM LIST ABOVE
1)» n0A1e1Mn1A1K1 oIPE
E- 24" RCP
PLAN VIEW OS4
PRIMARY OUTLET STRUCTURE
N.T.S.
COLLAR.
(SHOULD BE PLACED
APPROX. IN THE
MIDDLE OF EARTH
DAM)
The signatures affixed below certify that this sheet has been reviewed and approved solely
per the certifications signed on the cover sheet of these construction plans.
CM - Engineering
Date Public Works - Env. Programs Date
CM -
JE
JUNCUS EFFUSES
SOFTRUSH
4
-6"
POT
@
3'
SPACING
Public
AS
ACORUS SPP
SWEET FLAG
4
-6"
POT
@
3'
SPACING
Public
IV
IRIS VERSICOLOR
BLUE FLAG IRIS
4
-6"
POT
@
3'
SPACING
PC
PONTEDERIA CORDATA
PECKEREL WEED
4
-6"
POT
@
3'
SPACING
PV
PELTANDRA VIRGINICA
ARROW ARUM
4
-6"
POT
@
3'
SPACING
SL
SAGITTARIA LONGILOBA
ARROWHEAD
4
-6"
POT
@
3'
SPACING
GATE VALV
AND POND
DRAIN, SIZi
LANDSCAPE PLAN:
SHALLOW LAND= 1,812 sf (USE 199 PLANTS FROM LIST ABOVE)
SHALLOW WATER= 1,627 sf (USE 179 PLANTS FROM LIST ABOVE)
USE EQUAL NUMBER OF PLANTS FROM LIST ABOVE
1)» n0A1e1Mn1A1K1 oIPE
E- 24" RCP
PLAN VIEW OS4
PRIMARY OUTLET STRUCTURE
N.T.S.
COLLAR.
(SHOULD BE PLACED
APPROX. IN THE
MIDDLE OF EARTH
DAM)
The signatures affixed below certify that this sheet has been reviewed and approved solely
per the certifications signed on the cover sheet of these construction plans.
CM - Engineering
Date Public Works - Env. Programs Date
CM -
Transportation
Date
Planning
Date
CM -
Building Inspections
Date
Planning - Transportation
Date
Public
Works - Water /Sewer
Date
Fire
Date
Public
Works - Electric
Date
Parks, Recreation & Cultural Res.
Date
Public
Works - S & E
Date
Hugh J. Gilleece
and Associates
875 Walnut Street
Suite 360
Cary, NC 27511
BUSINESS LIC. # C -496
Phone: [phone]
Fax: [phone]
U p
z a
3 m
O
0
w
zo
o�
Uj Z
H i
U p
CL U
x
w
a
a
■l
Z
3
O
U
a
0
01-
z
FAIII FAI
P. W"
JI
o
JQ
Q4_j
a X
C
`1 W z
U W
0
°' Q ac
Uj
Q
LL
Uw
M Q
Q Q
Cn
(0 Z a
Z0
-ol 0 0 � z
3 O a
J55 (0
J
W _
X
0
Q
1 �- U
0
O
CD
W
T U
o
W
U3 � Q
0 3
Qw
J
LL
m
JOB # 36000.05
CD
DSN /CHK BY:. DAS /DAS
DWN BY: BAH
DATE: 1210112014
HRZ SCALE: AS SHOWN
o VRT SCALE: AS SHOWN
SHEET NO.
CD
o
0 C15