SW6220902_Design Calculations (Storm Drains)_20221102

" ''DDESIGN
7RO'ECTNAME
01-20-22
PROJECT NO
1632
PHASE
PRELIM
CONSTR / X
REVISION
Carolina
BY
CJP
RECORD //
OTHER / /
CHECKED BY
CSB
(SPECIFY)
n= 0.013
9= 226
h= 26
STORM DRAINAGE SCHEDULE CONTINUED
AREAS
(INLETS)
INLET
AREA
(AC)
INLET
Cc
RUNOFF
COEFF.
INLET
DISCHARGE
(CFS)
0(+)
UPSTREAM
BYPASS
(CFS)
CIO
INLET
BYPASS
(CFS)
CAPTURED
INLET
DISCHARGE
(CFS)
TOTAL
AREAS
(AC)
INLET
TIME
(MIN)
PIPE
TIME
(MIN)
Tc
TIME
OF CONC.
(MIN)
I
INTENSITY
(IN/HR)
Cc
RUNOFF
COEFF.
FROM TO
0.45 2.63 0.00 0.10 2.52
0.85 0.41 0.00 0.00 0.41
CI
Cl2
CI
1.46
1.46
5.00
0.00
5.00
7.29
0.45
Cl2
P03
C12
0.12
1.58
5.00
0.08
5.08
7.27
0.48
0.40 8.99 0.00 0.00 8.99
0.75 1.17 0.10 0.00 1.17
0.75 0.69 0.00 0.00 0.69
DAforPO4 adjusted for 25yr flow
5.00 7.29 0.40
5.01 7.29 0.42
PO4
C15
PO4
5.62
5.62
5.00
0.00
CI5
CI6
C15
0.36
5.98
5.00
0.01
CI6
P07
C16
0.23
6.20
5.00
0.04
5.04
7.28
0.43
0.40 1.62 0.00 0.10 1.51
0.80 0.32 0.00 0.00 0.32
CI
CI
C18
1.01
1.01
5.00
0.00
5.00
7.29
0.40
CI
P010
CI
0.10
1.11
5.00
0.08
5.08
7.27
0.44
0.40 2.00 0.00 0.17 1.82
0.85 0.48 0.00 0.01 0.47
CI 11
C112
CI 11
1.25
1.25
5.00
0.00
5.00
7.29
0.40
Cl 12
P013
Cl 12
0.14
1.39
5.00
0.08
5.08
7.27
0.45
0.70 0.73 0.00 0.01 0.71
0.85 0.51 0.00 0.00 0.50
0.65 1.27 0.00 0.09 1.18
0.80 0.21 0.00 0.00 0.21
Cl 14
C115
Cl 14
0.26
0.26
5.00
0.00
5.00
7.29
0.70
Cl 15
C116
Cl 15
0.15
0.41
5.00
0.08
5.08
7.27
0.75
Cl 16
C117
Cl 16
0.49
0.90
5.00
0.16
5.16
7.25
0.70
Cl 17
P018
Cl 17
0.07
0.97
5.00
0.27
5.27
7.23
0.70
0.50 2.02 0.00 0.23 1.78
0.85 0.63 0.00 0.01 0.62
CI 19
C120
CI 19
1.01
1.01
5.00
0.00
5.00
7.29
0.50
C120
PO 21
C120
0.18
1.19
5.00
0.08
5.08
7.27
0.55
0.40 3.15 0.00 0.00 3.15
0.85 0.76 0.00 0.00 0.76
0.85 0.62 0.00 0.00 0.62
PO 22
C123
PO 22
1.97
1.97
5.00
0.00
5.00
7.29
0.40
C123
C124
C123
0.22
2.19
5.00
0.03
5.03
7.28
0.45
C124
PO 25
C124
0.18
2.38
5.00
0.09
5.09
7.27
0.48
0.45 2.50 0.00 0.35 2.15
0.85 0.67 0.00 0.05 0.62
0.45 1.47 0.00 0.12 1.35
0.85 0.51 0.00 0.01 0.50
0.90 0.19 0.00 0.00 0.19
0.90 0.15 0.00 0.00 0.15
C126
C127
C126
1.39
1.39
5.00
0.00
5.00
7.29
0.45
C127
C128
C127
0.20
1.59
5.00
0.08
5.08
7.27
0.50
C128
C129
C128
0.82
2.40
5.00
0.18
5.18
7.25
0.48
C129
C130
C129
0.15
2.55
5.00
0.25
5.25
7.23
0.50
C130
C131
C130
0.05
2.61
5.00
0.32
5.32
7.22
0.51
C131
PO 32
C131
0.04
2.65
5.00
0.37
5.37
7.20
0.52
0.85 1.42 0.00 0.10 1.32
0.85 0.96 0.00 0.03 0.92
C133
C134
C133
0.42
0.42
5.00
0.00
5.00
7.29
0.85
C134
PO 35
C134
0.28
0.70
5.00
0.08
5.08
7.27
0.85
0.45 2.50 0.00 0.35 2.15
0.85 0.67 0.00 0.05 0.62
C136(DBL)
C137
C136(DBL)
1.39
1.39
5.00
0.00
5.00
7.29
0.45
C137
PO 38
C137
0.20
1.59
5.00
0.08
5.08
7.27
0.50
1632P2 STORM I. 16-YEAR Oaie: 111212822 Time: 708 AM Page 1 of 4

• "
PROJECT NAME
Woodlake II Ph, II
DATE
01-20-22
PROJECT NO
1632
DESIGN PHASE
PRELIM / /
CONSTR / X /
REVISION / /
LOCATION
Hoke County, North Carolina
BY
CJP
RECORD / /
OTHER
CHECKED BY
CSB
(SPECIFY)
n= 0.013
9= 226
h= 26
STORM DRAINAGE SCHEDULE -CONTINUED
Q
DISCHARGE
(CFS)
Q
SIDE-
STREAM
(CFS)
SLOPE
DIA.
(IN)
CAPACITY
(FULL)
(CFS)
V FULL
(FPS)
LENGTH
(FT)
SEGMENT
TIME
(MIN)
UPPER
INV.
(FT)
LOWER
INV.
(FT)
UPSTREAM
TOP
ELEV.
(FT)
FROM TO
5.2 26 0.08
11.4 25 0.04
214.25 217.83
213.07 217.83
CI
Cl2
4.79
0.00
0.0096
15
6.3
214.50
Cl2
P03
5.52
0.00
0.0472
15
14.0
214.25
19.89
21.82
23.06
15.9 9 0.01
209.94 213.19
209.05 213.19
208.70 213.19
PO4
C15
0.00
0.0365
30
78.3
210.25
209.94
209.05
CI5
CI6
0.00
0.0342
30
75.9
15.4 26 0.03
CI6
P07
0.00
0.0053
30
30.0
6.1 66 0.18
5.2 26 0.08
210.75 214.32
210.00 214.32
CI
CI9
2.95
0.00
0.0096
15
6.3
211.00
210.75
CI
P010
3.52
0.00
0.0368
15
12.4
10.1 20 0.03
K2 26 0.08
212.00 215.58
211.50 215.58
CI 11
Cl 12
3.64
0.00
0.0096
15
6.3
212.25
212.00
Cl 12
P013
4.49
0.00
0.0189
15
8.9
7.2 26 0.06
5.2 26 0.08
214.75 218.36
212.10 218.36
211.80 215.42
211.50 215.21
CI 14
Cl 15
1.32
0.00
0.0096
15
6.3
215.00
214.75
Cl 15
Cl 16
2.24
0.00
0.0481
15
14.2
11.5 55 0.08
Cl 16
Cl 17
4.54
0.00
0.0091
15
6.2
5.0 33 0.11
212.10
Cl 17
P018
4.91
0.00
0.0135
15
7.5
6.1 22 0.06
211.80
5.2 26 0.08
201.45 205.04
200.50 205.04
CI 19
C120
3.68
0.00
0.0096
15
6.3
201.70
C120
PO 21
4.81
0.00
0.0586
15
15.6
12.7 16 0.02
201.45
13.1 24 0.03
193.20 196.84
192.86 196.84
190.50 196.84
PO 22
C123
10.06
4.32
0.0332
24
41.2
194.00
193.20
CI23
Cl 24
11.45
0.00
0.0118
24
24.6
7.8 29 0.06
C124
PO 25
12.55
0.00
0.0846
24
65.8
20.9 28 0.02
192.86
5.6 26 0.08
196.40 199.95
194.11 199.95
193.81 197.61
191.11 197.61
190.65 194.21
190.30 194.21
Cl 26
Cl 27
4.55
0.00
0.0115
15
6.9
196.70
196.40
Cl 27
C128
5.76
0.00
0.0368
15
12.4
10.1 62 0.10
C128
C129
8.40
0.00
0.0115
18
11.3
6.4 26 0.07
194.11
193.81
C129
C130
9.31
0.00
0.0490
18
23.2
13.1 55 0.07
Cl 30
C131
9.64
0.00
0.0177
18
14.0
7.9 26 0.05
191.11
190.65
Cl 31
PO 32
9.90
0.00
0.0173
18
13.8
7.8 20 0.04
5.2 26 0.08
206.45 209.99
205.50 209.99
CI 33
Cl 34
2.59
0.00
0.0096
15
6.3
206.70
Cl 34
PO 35
4.32
0.00
0.0345
15
12.0
9.8 28 0.05
206.45
5.6 26 0.08
186.60 190.20
186.00 190.20
Cl 36(DBL)
C137
4.55
0.00
0.0115
15
6.9
186.90
186.60
C137
PO 38
5.76
0.00
0.0249
15
10.2
8.3 24 0.05
1632P2 STORM A. 16-YEAR Date: 111212822 Time: 708 AM Page 2 of 4

0.0
26
1632P2 STORM I. 10-YEAR O t. 111212022 Time: 708 AM Page 3 of 4

7NAME
ATE
1-20-22
PROJECT NO
1632
DESIGN PHASE
PRELIM
CONSTR / X
REVISION
BY
CJP
RECORDCarolina
OTHER / /
CHECKED BY
CSB
(SPECIFY)
n=
g=
h=
0.013
226
26
HYDRAULIC
GRADE LINE
-CONTINUED
DESIGN CRITERIA:
1. DESIGN FORTHE 10YR STORM
2. ASSUME TIME OF CONCENTRATION TO
AN INDIVIDUAL INLET = 5 MIN. (Unless otherwise noted)
3. INTENSITY =g/(h+T), FOR 10 YR STORM
(g and h were denied from Raleigh -Durham Intensity -
Duration -Frequency Charts, REF: INC Erosion and
Sediment Control Planning and Design Manual)
4. MANNINGS "n" FACTOR= 0.013
5. RUNOFF COEFICIENT C-0.50 (Per CR-7107)
OUTLET
W.S. ELEV
(FT)
INLET
W.S. ELEV.
FLOW
CONDITION
CONTROL
FREE-
BOARD
T)
HGL
TO CROWN
COMMENTS
CAPACITY VS
DISCHARGE
FROM
TO
OUTLET
CONTOL
(FT)
INLET
CONTROL
(FT)
USE
(FT)
CI 1
Cl 2
215.75
216.03
215.78
216.03
OUTLET
1.80
(0.28)
OK
1.54
C12
P03
214.07
214.44
215.75
215.75
INLET
2.08
(0.25)
OK
8.51
PO4
C15
212.04
212.21
212.21
212.21
OUTLET
0.98
0.54
OK
58.44
C15
CI6
211.29
211.55
212.04
212.04
INLET
1.15
0.40
OK
54.06
CI6
P07
210.70
211.29
211.25
211.29
OUTLET
1.90
0.26
OK
6.90
C18
C19
211.75
211.86
211.87
211.87
INLET
2.45
0.38
OK
3.39
CI9
P010
211.00
211.14
211.73
211.73
INLET
2.59
0.27
OK
8.87
CI 11
Cl 12
213.20
213.37
213.25
213.37
OUTLET
2.21
0.13
OK
2.70
Cl 12
P013
212.50
212.75
213.20
213.20
INLET
2.38
0.05
OK
4.39
Cl 14
Cl 15
215.75
215.77
215.68
215.77
OUTLET
2.59
0.48
OK
5.01
Cl 15
Cl 16
213.52
213.65
215.52
215.52
INLET
2.84
0.48
OK
11.92
Cl 16
Cl 17
213.12
213.52
213.32
213.52
OUTLET
1.90
(0.17)
OK
1.62
Cl 17
P018
212.50
212.85
213.12
213.12
INLET
2.09
(0.07)
OK
2.60
CI 19
C120
202.74
202.90
202.71
202.90
OUTLET
2.14
0.05
OK
2.66
C120
PO 21
201.50
201.73
202.74
202.74
INLET
2.30
(0.04)
OK
10.84
PO 22
C123
194.80
194.94
195.44
195.44
INLET
1.40
0.56
OK
31.15
C123
C124
194.55
194.74
194.77
194.77
INLET
2.07
0.43
OK
13.13
C124
PO 25
192.10
192.33
194.55
194.55
INLET
2.29
0.31
OK
53.25
C126
C127
197.98
198.23
197.92
198.23
OUTLET
1.72
(0.28)
OK
2.39
C127
C128
196.32
197.21
197.98
197.98
INLET
1.97
(0.33)
OK
6.63
C128
C129
195.76
196.32
195.84
196.32
OUTLET
1.29
(0.71)
OK
2.88
C129
C130
193.50
194.42
195.76
195.76
INLET
1.85
(0.45)
OK
13.93
C130
C131
192.75
193.50
193.14
193.50
OUTLET
0.71
(0.89)
OK
4.33
C131
PO 32
191.50
191.97
192.75
192.75
INLET
1.46
(0.60)
OK
3.92
C133
C134
207.61
207.69
207.52
207.69
OUTLET
2.30
0.26
OK
3.74
C134
PO 35
206.50
206.74
207.61
207.61
INLET
2.38
0.09
OK
7.68
C136(DBL)
C137
188.18
188.62
188.12
188.62
OUTLET
1.58
(0.47)
OK
2.39
C137
PO 38
187.00
187.70
188.18
188.18
INLET
2.02
(0.33)
OK
4.44
1632P2 STORM A. 16-YEAR Oar.: 111212822 Time: 708 AM Page 4 of 4