SW6220904_Design Calculations_20221102 (5)

DATE
DESIGN PHASE
07-22-22
PRELIMECT
NAME
rHidd!en
PROJECT NO
CONSTR / X
Valle Subdivision
1860
REVISIONCATION
RECORDewiffle
BY
Townshi , Raeford, NC
BPB
OTHER
(SPECIFY)
CHECKED BY
CSB
Storm Outlet Structure
FES No.=
FES-4
Pipe Dia=
24
in
Q10 =
16.73
cfs
Qfull =
16.90
cfs
Vfull =
5.37
fps
From Fig.
8.06.b.1:
From Fig.
8.06.b.2:
s
Length
Storm Outlet Structure
FES No.=
FES-8
Pipe Dia=
24
in
Q10 =
14.95
cfs
Qfull =
16.33
cfs
Vfull =
5.19
fps
From Fig.
8.06.b.1:
From Fig.
8.06.b.2:
s
v 3
Length
Zone
D50
DMAX
Riprap Class
Apron Thickness
Apron Length
Apron Width @ Outlet
Apron Width @ End
Zone
D50
DMAX
Riprap Class
Apron Thickness
Apron Length
Apron Width @ Outlet
Apron Width @ End
Q10/Qfu11 = 0.99
V/Vfu I = 1.14
V = 6.1 fps
= 2
= 8 in
= 12 in
= B
= 18 in
= 12.0 ft
= 6 ft
= 14.0 ft
Q10/QfuI1 = 0.92
V/Vfu 11 = 1.13
V = 5.9 fps
= 2
= 8 in
= 12 in
= B
= 18 in
= 12.0 ft
= 6 ft
= 14.0 ft
1860-Storm drainage.xlsx LATEST REVISION: 11/2/2022 6:41 AM PAGE 1 OF 5

• • `
DATE
DESIGN PHASE
PRELIM
07-22-22
ME
riddenValley
PROJECT NO
CONSTR / X /
Subdivision
1860
REVISION
RECORD
BY
Quewiffle Township, Raeford, NC
BPB
OTHER
(SPECIFY)
CHECKED BY
CSB
Storm Outlet Structure
FES No.=
FES-11
Pipe Dia=
18
in
Q10 =
4.94
cfs
Qfull =
21.17
cfs
Vfull =
11.96
fps
From Fig.
8.06.b.1:
From Fig.
8.06.b.2:
Storm Outlet Structure
FES No.=
FES-14
Pipe Dia=
18
in
Q10 =
3.96
cfs
Qfull =
7.83
cfs
Vfull =
4.42
fps
From Fig.
8.06.b.1:
From Fig.
8.06.b.2:
s
Length
Zone
D5o
DMAX
Riprap Class
Apron Thickness
Apron Length
Apron Width @ Outlet
Apron Width @ End
Zone
D5o
DMAX
Riprap Class
Apron Thickness
Apron Length
Apron Width @ Outlet
Apron Width @ End
Q10/Qfu11 = 0.23
V/Vfu I = 0.81
V = 9.7 fps
= 2
= 8 in
= 12 in
= B
= 18 in
= 9.0 ft
= 4.5 ft
= 10.5 ft
Q1 o/Qfu I = 0.51
V/Vfu11 = 1.00
V = 4.4 fps
= 2
= 8 in
= 12 in
= B
= 18 in
= 9.0 ft
= 4.5 ft
= 10.5 ft
1860-Storm drainage.xlsx LATEST REVISION: 11/2/2022 6:41 AM PAGE 2 OF 5

• • `
DATE
DESIGN PHASE
PRELIM
07-22-22
ME
riddenValley
PROJECT NO
CONSTR / X /
Subdivision
1860
REVISION
RECORD
BY
Quewiffle Township, Raeford, NC
BPB
OTHER
(SPECIFY)
CHECKED BY
CSB
Storm Outlet Structure
FES No.=
FES-17
Pipe Dia=
36
in
Q10 =
45.21
cfs
Qfull =
48.80
cfs
Vfull =
6.90
fps
From Fig.
8.06.b.1:
From Fig.
8.06.b.2:
Storm Outlet Structure
FES No.=
FES-20
Pipe Dia=
18
in
Q10 =
7.96
cfs
Qfull =
29.16
cfs
Vfull =
16.48
fps
From Fig.
8.06.b.1:
From Fig.
8.06.b.2:
s
Length
Zone
D5o
DMAX
Riprap Class
Apron Thickness
Apron Length
Apron Width @ Outlet
Apron Width @ End
Zone
D5o
DMAX
Riprap Class
Apron Thickness
Apron Length
Apron Width @ Outlet
Apron Width @ End
Q10/Qfu11 = 0.93
V/Vfu I = 1.14
V = 7.8 fps
= 3
= 10 in
= 15 in
= 1
= 22.5 in
= 24.0 ft
= 9 ft
= 27.0 ft
Q10/QfuI1 = 0.27
V/Vfu11 = 0.83
V = 13.7 fps
= 2
= 8 in
= 12 in
= B
= 18 in
= 9.0 ft
= 4.5 ft
= 10.5 ft
1860-Storm drainage.xlsx LATEST REVISION: 11/2/2022 6:41 AM PAGE 3 OF 5

• • `
DATE
DESIGN PHASE
PRELIM
07-22-22
ME
riddenValley
PROJECT NO
CONSTR / X /
Subdivision
1860
REVISION / X /
RECORD / X /
BY
Quewiffle Township, Raeford, NC
BPB
OTHER / X /
(SPECIFY)
CHECKED BY
CSB
Storm Outlet Structure
FES No.=
FES-23
Pipe Dia=
18
in
Q10 =
4.76
cfs
Qfull =
7.58
cfs
Vfull =
4.28
fps
From Fig.
8.06.b.1:
From Fig.
8.06.b.2:
Storm Outlet Structure
FES No.=
FES-25
Pipe Dia=
15
in
Q10 =
2.49
cfs
Qfull =
13.19
cfs
Vfull =
10.73
fps
From Fig.
8.06.b.1:
From Fig.
8.06.b.2:
s
Length
Zone
D5o
DMAX
Riprap Class
Apron Thickness
Apron Length
Apron Width @ Outlet
Apron Width @ End
Zone
D5o
DMAX
Riprap Class
Apron Thickness
Apron Length
Apron Width @ Outlet
Apron Width @ End
Q10/Qfu11 = 0.63
V/Vfu11 = 1.06
V = 4.5 fps
= 2
= 8 in
= 12 in
= B
= 18 in
= 9.0 ft
= 4.5 ft
= 10.5 ft
Q1 o/Qfu I = 0.19
V/Vfu11 = 0.75
V = 8.1 fps
= 2
= 8 in
= 12 in
= B
= 18 in
= 7.5 ft
= 3.75 ft
= 8.8 ft
1860-Storm drainage.xlsx LATEST REVISION: 11/2/2022 6:41 AM PAGE 4 OF 5

• `
DATE
DESIGN PHASE
PRELIMME
07-22-22
rid(denValley
PROJECT NO
CONSTR / X /
Subdivision
1860
REVISION / X /
RECORD / X /
BY
Quewiffle Township, Raeford, NC
BPB
OTHER / X /
(SPECIFY)
CHECKED BY
CSB
Storm Outlet Structure
FES No.= PIPE 1 OUT Q10/Qful1 = 0.30
Pipe Dia= 18 in V/Vfull = 0.87
Q10 = 4.40 cfs V = 7.3 fps
Qfull = 14.90 cfs
Vfull = 8.40 fps
From Fig. 8.06.b.1: Zone = 2
From Fig. 8.06.b.2:
s
v 3
Length
D50
= 8 in
DMAX
= 12 in
Riprap Class
= B
Apron Thickness
= 18 in
Apron Length
= 9.0 ft
Apron Width @ Outlet
= 4.5 ft
Apron Width @ End
= 10.5 ft
1860-Storm drainage.xlsx LATEST REVISION: 11/2/2022 6:41 AM PAGE 5 OF 5