SW1221002_Plansheet CL313.P2 - Grading/Drainage Plan_20230223

LEGEND
BIORETENTION 11 / °\
D o END WALL \ I \ CL905.P2 - \ °o\/ PROPERTY LINE \
2137.00 (F)
BUILDING LINE •
Gresham Smyth
o
\ _ -2145- - EXISTING MAJOR CONTOUR GS-NC P.C.
An Affiliate of Gresham Smith
D6 BIORETENTION POND 1 /` °\ BERM ELEV= 2124.00 _
`'8 \ 2134 � / o\ - -2146- - - EXISTING MINOR CONTOUR
PROVIDED WATER QUALITY VOLUME = 1,377 CIF RIM:2137.48 I I I REQUIRED WATER QUALITY VOLUME = 1,371 CIF � � oo EMERGENCY SPILLWAY ELEV- 2122.90
/ / \ \
2133 r REQUIRED SURFACE AREA = 1,371 SIF °o\ OUTLET STRUCTURE RIM ELEV= 2122.50
2145 MAJOR CONTOUR
I I 2132 / _ PROVIDED SURFACE AREA = 1,377 SF -
I I / / / 2131 _ �� o 0 2 ORIFICE ELEV= 2115.20 2146 MINOR CONTOUR 201 South College St.
TW: 2137.50 / / / / BIORETENTION POND 04 °\ - - - - - - - - 10' RETAINING WALL Suite 1950
FG (N): 2137.00 N.4. N 2130 / \\ OUTLET STRUCTURE CL905.P2 o
FG (S): 2130.00 I / ` Charlotte, NC 28244
\\ \ °°
2129 \D3 POND SURFACE ELEV 2115.20
\I STORM PIPE 704.944.7970
I I r \ \ � °J =
212a I / // RIM:2129.00�,
I I j &
\ \ \ STORMWATER CONTROL MEASURE / \\ HEADWALL
ACCESS AND MAINTENANCE EASEMENT _ _ - _ - 72" OUTLET PIPE ELEV= 2095.35
4 \ I I i I / / / / / \ \ \ °\ ST STORM MANHOLE
6" PERFORATED PVC UNDERDRAIN I I / / / \ \ \ CATCH BASIN
@ 1% MINIMUM SLOPE ° I / / / / / // �\ � \ \ � 01
10'WIDE BERM = 2130.00 � COMBINATION INLET
/ / / / / / / �G DRY DETENTION POND SECTION VIEW
\ I I I� / // / \ ti - \\ - N.T.S. ® STORM CLEANOUT
PERMANENT RIPRAP AT 08 \ \ ) A4 A5
� I1 I I /II 1g3II II g C I1II II II N°II I II I I I I I/ I i II I I I lI I' l I' I y♦♦ ♦ /♦ ♦ \J \\\ \\\\�\ \\\�\\\\\\ \ \\\ \ I NDWALL(TY\P.) CL905.P`2 \ \l\
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STRUCTURE LABEL
RIM:2139.00
2139.00
Gresham
SPOT ELEVATION2130.00
I 2129 2139.00 (F) Smith
I C 1 .♦ FLUSH ELEVATIONSPILLWAYELEV2129.50 ♦ -- \ \ \� \ oIx
o °212a MATCH EXISTING FINISH
°
\I I .2139.00 M.E.F.G o �� GRADE ELEVATION\ \ 2127' E \ \ \\ � o � 198.80
-TOPOFCURB
I p I D, I I I J I `♦♦ / X29.5o \\\ \ \✓/ ` \ \ 198.30 -BOTTOMOFCURB CURB ELEVATION
2126
IIi I II i II IIl II N°, II N III II :♦III/ LII i /I
\\ \ \ 4 \\\ \\1-1 \\\\\\\U\\GE TW: 2139.50 -T OPOFFIN WISAHL L
WALL ELEVAT
ION
rFG (N): 2139.0 GRADE
FG(S): 2137.00\ ATWALL\ O\o °\D5 \ \ \o °��RIM:2139.17 D4 1-1 \ FLOW ARROW •Ce214 o\ evi
-2 2128i50 D2 ° \ H.P. HIGH POINT GONAL All RPO R T�° "p<off
L.P. LOW POINT
22 \ \ \\
i o
� Asheville Regional
p N � \
2120 \\ \ \ \ \°® � STORMWATER CONTROL MEASURE I I NOTE: Airport
\/ \ \ ACCESS AND MAINTENANCE EASEMENT 1 \
-�� 1. CONTRACTOR TO COORDINATE
o° Terminal
1 I I 1 2�� \\ \\ \ \\i � � \ / � UNDERGROUND UTILITIES TO BE A MINIMUM OF
I ° O" O" s \ \ \ °� / /� I 3 INCHES CLEAR BELOW THE BASE OF THE Modernization
I I ° \ ♦ GRADE BEAMS WHEN PASSING UNDERNEATH.
/ 6" PERFORATED I I 1 I I I I I �° �/ CO, N \\ \\ \\ \ �' \ \ / 2. NO UTILITY LINES SHALL PENETRATE THE
PVC UNDERDRAIN I I I I I \ \ \ \ / \ / 61 Terminal Drive Suite 1
IE - 2124.00 1 1 1 I I I I � ��a \ / \ � � � / FOOTING AT THE CENTRAL ENERGY PLANT Fletcher, North Carolina 28732
/ I 1 1 1 ° -� n/ (� \ G , I I / EXCEPT FUEL LINES.
3. CONTRACTOR TO COORDINATE ALL 02/16/2022
UNDERDRAIN CLEANOUT (TYP.) l I I I / °\ UNDERGROUND UTILITY ROUTINGS. UTILITIES
I I CO ; �" p 1 I
SHALL BE KEPT A MINIMUM OF 12 INCHES
\ I
x 1 1 \ 1 1 II I I N N = Cl) / ���� p D / // I CLEAR FROM ALL FOUNDATIONS IN PLAN. GS Project#: 43483.02
TW: 2137.50 I I I I I 1 1 I 1 11 I h _ ov
FG (N): 2137.00 I I I \ 1 1 1 1 I ° N N � 0)
FG (S): 2130.00 ^ry ti �C/I N O �� / / Dp D �o �c POND EMER CY/ 07
ti^6 N \ SPILLWAY // CL904.P2 I \��UNIIIIIIINq��i
/ 4 I I I o O -� N N / 2116 p p • I .��`�� \�.CA/3p '''�%
/ X
/ S �, �- \ \ p / 20' WIDE EMERGENCY SPILLWAY ELEV= 2122.90 II = o53A4s
Y P I I
/ END WALL 1 s 1 1 I 1 I I I D19 p p D D ` ` p D 2122.90 \ t 02/1�\ff23
/ 2137.00 (F) 9�D:Hvo��?,.
2`117.20
� I I I I I I 1 1 1 1 1 I ' I 1 / \ p p U ° Dp p p ♦♦♦♦ // �
/ 10 D
1 1 \ p ♦♦ ♦ o / / NATHAN HUDGENS, PE
r) / / I 1 I 1 I 1 1 1 I I I / \ DRY DETENTION POND 1 ° \ Dp D ♦ �° / / NC 053149
CCY)
V') // // I / 1 I I I- 1 1 1 I - - - - - - - 100 YR WSE = 2123.00 \\ ♦ ♦♦ �o G� / /
CVO - - - _- A - \ p a \10 REVISION
I I /
- - - - - _- I - I-� 1 I I I I =- _ - _ - _ - \ \\ \ \ I N \o / NO. DATE DESCRIPTION
\ / 1 08/19/22 AGENCY COMMENTS
EXISTING 72 RCP OUTLET PIPE
D 1 II nNi m : \\ \� / 2 11/02/22 ASI 007
- _ - / 2�\\ RIM:2122.50 I N N 10'WIDE BERM = 2124 00 o�F ` 3 01/18/23 ASI 011
x
N I / / / / / / / / / 27 27�8 2115.20 \ 4 02/17/23 AGENCY COMMENTS
a) / / / / / / / CONTRACTOR TO VERIFY DEPTHS OF EXISTING 2j2o �9
STORM STRUCTURES AND PIPES TO REMAIN 2122
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Cl) ° - - - - `-
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NI M \ 1 �, e. _ r'u • \\\ \moo
co O `e. oc a
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1* D18 '!`t \�F oc\ �� \ \
RIM:2135.38 vb&�; \ °'
CONTRACTOR TO VERIFY DEPTHS OF EXISTING
CL \ STORM STRUCTURES AND PIPES TO REMAIN. EXISTING STRUCTURE RIM TO BE RAISED FROM 2118.00 \\
J TO 2122.50 PER DRY DETENTION POND DESIGN. - \
\ EXISTING MANHOLE RIM TO BE LOWERED
o \\ \ FROM 2118.94' TO 2116.20'. _ F s \ \
\ � - oc\ e�l�e _ DETENTION POND 1 03 I \i\ \\
Q \\ \\ ems! � OUTLET STRUCTURE CL902.P2 \\ ♦ \ \
N GRAPHIC SCALE DETAILED
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1* KEYPLAN GRADING PLAN
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�s CL313mP2
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OVERALL GRADING & DRAINAGE PLAN B1 B2 B3
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SCALE: 1"=60'
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CONSTRUCTION DOCUMENTS
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