SW1210602_Plansheet - Grading/Drainage Plan_20210630 (2)

DocuSign Envelope ID: 61796BC1 -4762-4278-AF1 1-747CBB7384D7
PROPOSED STORMWATER
BIO-RETENTION CELL "A"
(SEE SHEET C-302 FOR
ADDITIONAL INFORMATION)
1
PROPOSED LEVEL
SPREADER #1
PROPOSED STORMWATER BIO-RETENTION CELL "C"
PROPOSED OUTLET #11B W/ FES
PROPOSED OUTLET #11 A W/ FES
PROPERTY BOUNDARY (40.42 Aft)
1\7 1-1-
EXISTING GRAVEL ROAD
(BY NCDOT) FUTURE NCDOT
ROADWAY W/ 60' R/W
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35
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W W W W W W .W W W WI PROPOSED LEADER (SEE PLUMBING PLANS FOR SIZE, �m R-
CI #14 TYPE AND LOCATION) PROPOSED CR #47 PROPOSED OCS #2 1658/97 HENDERSONVILLE, NC 28739
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180� ..... \W`W W W W W W W W ! PROPOSED �� �� PROPOSED W W ` (TO BE RELAYED ® 8.6%) F
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PROPOSED
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CI #32
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••• F\R �F\RF PROPOSED O iW PROPOSED STORMWATER BIO-RETENTION CELL "D" PROPERTY GROUP
PROPOSED 2 `' W (SEE\ SHEET C-305 FOR ADDITIONAL INFORMATION)
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....................... �` CR53SED \ PROPOSED 2120 - PROPOSED
... PROPOSED SCM MAINTENANCE AND
CI #54 / JB #3 PROPOSED W ACCESS EASEMENT (TYP.)
�- ••.:.:.:.:.:.:.:.:.:.:. PROPOSED RETAINING -� _ -1\ �� CI 40 �
WALL (TYP.) - PROPOSED OUTLET #14 W/ FES �/ PROPOSED # " ` ` ` ` ` IL
I °° _ _ _ _ ... _ 41ZZ q'9q / CI #30 PROPOSED 11 PROPOSED OUTLET #12 W/ FES
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\ ..................... .. W W W W PROPOSED OUTLET PROPOSED PROPOSED
I . .................. .. #13 W/ FES CI #29 PROPOSED ` CI #49
W . PROPOSED CI #37 Y W Y Y
I / CI #39
I ♦ Am� PROPOSED
W
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• • W W W W � CI # 51 \ Town of Mills River
EXISTING 30" CMP CULVERT W 8 -W W W/ PROPOSED G \
PROPOSED OCS 5 CI #28 PROPOSED y 0 Henderson County
EXISTING WETLAND W\� / CI #38 y
(PER CLEARWATER ENVIRONMENTAL) (TO BE INSTALLED ON \ , W W W m North Carolina
PROPOSED
0.60 AC. \\ END OF EXISTING 30"
CI #25 ` \
CULVERT) / n h,
STRUCTURE TABLE
STRUCTURE
TOP ELEV.
INV. ELEV.
DEPTH
TYPE
1
2147.45'
2140.20'
7.25'
OTCB
2
2133.00'
2128.00'
5.00'
OCS **
3
2133.93'
2117.00'
16.93'
JB
4
2119.00'
2115.00'
4.00'
OTCB
5
2117.00'
2106.40'
10.60'
OCS **
6
2089.00'
2083.00'
6.00'
JB
7
2085.00'
2081.00'
4.00'
JB
8
2110.00'
2104.00'
6.00'
JB
9
2098.00'
2093.00'
5.00'
OCS **
10
2127.00'
2122.00'
5.00'
OCS **
11
2117.00'
2110.50'
6.50'
OCS **
12
STRUCTURE NUMBER NOT USED
13
2121.73'
2116.73'
5.00'
CI
14
2121.17'
2116.17'
5.00'
CI
15
2122.33'
2117.33'
5.00'
CI
16
2122.33'
2117.33'
5.00'
CI
17
2122.83'
2117.83'
5.00'
CI
18
2124.28'
2119.28'
5.00'
CI
19
2129.89'
2124.89'
5.00'
CI
20
2129.08'
2122.88'
6.20'
CI
21
2126.74'
2121.74'
5.00'
CI
22
2127.82'
2120.82'
7.00'
CI
23
2145.44'
2141.44'
4.00'
CI
24
2142.52'
2138.52'
4.00'
CI
25
2139.60'
2135.60'
4.00'
CI
26
2145.89'
2141.89'
4.00'
CI
27
2142.97'
2138.97'
4.00'
CI
28
2140.05'
2134.79'
5.26'
CI
29
2137.13'
2133.13'
4.00'
CI
30
2134.21'
2130.21'
4.00'
CI
31
2131.29'
2127.95'
3.34'
CI
32
2131.30'
2128.28'
3.02'
CI
33
2131.14'
2127.88'
3.26'
CI
34
2148.27'
2144.27'
4.00'
CI
35
2145.35'
2141.35'
4.00'
CI
36
2146.20'
2142.20'
4.00'
CI
37
2142.24'
2138.24'
4.00'
CI
38
2142.43'
2137.96'
4.47'
CI
39
2139.51'
2135.51'
4.00'
CI
40
2136.08'
2132.08'
4.00'
CI
41
2136.59'
2131.80'
4.79'
CI
42
2133.67'
2129.67'
4.00'
CI
43
2130.75'
2127.19'
3.56'
CI
44
2130.60
2127.12'
3.48'
CI
45
2130.14'
2126.84'
3.30'
CI
46
2132.32'
2126.56'
5.76'
CI
47
2130.10'
2126.29'
3.81'
CI
48
2149.53'
2145.53'
4.00'
CI
49
2138.00'
2134.00'
4.00'
CI
50
2139.65'
2134.65'
5.00'
CI
51
2136.41'
2132.41'
4.00'
CI
52
1 2137.13'
1 2132.13'
5.00'
1 CI
53
1 2120.93'
1 2116.93'
4.00'
1 CI
54
1 2121.35'
1 2116.35'
5.00'
1 CI
60
GRAPHIC SCALE
30 60 120
( IN FEET )
PROPOSED STORMWATER BIO-RETENTION CELL "E"-
WILD RIVER CORPORATION A NC (SEE SHEET C-305 FOR ADDITIONAL INFORMATION)
CORPORATION
9641-11-9679 PROPOSED OTCB #4 ­"
1504/209
PROPOSED PERMANENT VEGETATED SWALE #6 (TYPE "A")
PIPING CHART
SEGMENT
FROM
TO
LENGTH LF
SLOPE %
SIZE
MATERIAL
A
1
2
120
10.17
24"
HDPE
B
2
3
272
4.04
24"
HDPE WTJ
C
INLET 1
3
399
5.01
18"
HDPE
D
3
5
349
3.04
24"
HDPE
E
4
5
86
10.00
15"
HDPE
F
6
7
79
2.53
30"
HDPE WTJ
G
7
OUTLET 1
10
1.00
36"
HDPE WTJ
H
8
OUTLET 2
98
7.14
30"
HDPE WTJ
1
9
6
76
13.16
24"
HDPE WTJ
J
10
8
53
33.96
30"
HDPE WTJ KEYED
K
11
OUTLET 3
220
0.73
30"
HDPE WTJ
L
13
OUTLET 4
58
34.02
15"
HDPE WTJ KEYED
M
14
OUTLET 5
58
33.05
15"
HDPE WTJ KEYED
N
15
OUTLET 6
59
34.46
15"
HDPE WTJ KEYED
0
16
OUTLET 7
58
35.05
15"
HDPE WTJ KEYED
P
17
OUTLET 8
58
35.91
15"
HDPE WTJ KEYED
Q
18
OUTLET 9
24
9.50
15"
HDPE
R
19
20
159
1.26
15"
HDPE
S
20
21
228
0.50
30"
HDPE
T
21
22
148
0.62
30"
HDPE
U
22
OUTLET 10
30
12.73
30"
HDPE
V
23
24
73
4.00
15"
HDPE
W
24
25
73
4.00
15"
HDPE
X
25
50
57
1.67
15"
HDPE
Y
26
27
73
4.00
15"
HDPE
Z
27
28
73
5.73
15"
HDPE
AA
28
29
73
2.27
15'
HDPE
BB
29
30
73
4.00
15"
HDPE
CC
30
31
73
3.10
15"
HDPE
DID
31
33
13
0.54
18"
HDPE
EE
32
33
80
0.50
15"
HDPE
FF
33
44
152
0.50
24"
HDPE
GG
34
35
73
4.00
15"
HDPE
HH
35
38
73
4.64
15"
HDPE
11
36
37
99
4.00
15"
HDPE
JJ
37
38
55
0.51
15"
HDPE
KK
38
39
73
3.36
15"
HDPE
LL
39
41
73
5.08
15"
HDPE
MM
40
41
55
0.51
15"
HDPE
NN
41
42
73
2.92
15"
HDPE
00
42
46
62
5.02
15"
HDPE
PP
43
44
13
0.54
15"
HDPE
QQ
44
45
55
0.51
24"
HDPE
RR
45
OUTLET 11 B
85
0.99
24"
HDPE
SS
46
47
53
0.51
24"
HDPE
TT
47
OUTLET 11 A
58
0.50
24"
HDPE
UU
48
49
256
4.50
15"
HDPE
VV
49
OUTLET 12
24
8.33
15"
HDPE
WW
50
52
63
4.00
15"
HDPE
XX
51
52
38
0.74
15"
HDPE
YY
52
OUTLET 13
48
33.60
15"
HDPE WTJ KEYED
ZZ
1 53
1 54
1 57
1 1.02
1 15"
1 HDPE
AAA
1 54
1 OUTLET 14
1 42
1 0.83
1 15"
1 HDPE
NOTES:
* = OTCB #1 SHALL MEET NCDOT STANDARD 840.04.
** = SEE DETAIL SHEETS FOR ADDITIONAL INFORMATION ON ALL OCS
240 STRUCTURES. COORDINATE ALL OCS STRUCTURES WITH THE EROSION
CONTROL PLANS AND PRECAST INLET FOR TEMPORARY SKIMMER INTO
INVERT OF BOX.
FERNCLIFF PARK DRIVE
(S.R. 2418) 60' R/W
(PUBLIC) 25' ASPHALT
EXISTING 12" CITY OF
ASHEVILLE WATER MAIN
(PER SURVEY)
INLET TABLE
INLET
INV. ELEV.
END TREATMENT
1
2137.00'
FES
OUTLET TABLE
OUTLET
INV. ELEV.
END TREATMENT
1
2080.90'
LEVEL SPREADER
2
2097.00'
FES
3
2108.90'
LEVEL SPREADER
4
2097.00'
FES
5
2097.00'
FES
6
2097.00'
FES
7
2097.00'
FES
8
2097.00'
FES
9
2117.00'
FES
10
2117.00'
FES
11 A
2126.00'
FES
11 B
2126.00'
FES
12
2132.00'
FES
13
2116.00'
FES
14
2116.00'
FES
TOP OF SHOULDER
ELEV. = 2148.00' _
STRUCTURE SLAB TOP--�,STRUCTURE TOP ELEV. = 2147.45'
ELEV. = 2147.78' (AS NOTED IN STRUCTURE CHART)
_. .. CROWN = 2146.2'
STRUCTURE # 1 DETAIL
NOT TO SCALE
EXISTING 24" CMP CULVERT
INV. IN = 2144.2' (PER SURVEY)
INV. = 2140.20'
CAROB%,
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/A M R �65/2021
//011111100
REVISIONS
DATE
DESCRIPTION
5/17/21
Released for Permitting
•
V
Know what's below.
Call before you dig.
PROJECT NUMBER: 20176
DATE: 4/21
DRAWN BY: KHC
CHECKED BY: WRB
Stormwater Plan
C-301
SCALE: 1 "=60'