SW4220601_Design Calculations_20230324 (3)

VEGETATED CONVEYANCE DITCH CALCULATIONS 10 YR. STORM
Channel
ID
Bottom
Width
FT.
Drain
Area
AC.
Imperv.
Area
Runoff
Coeff ©
i10
in/hr
Q10
CFS
Mannings
(Ditch)
Slope
ft/ft
Ditch
Length
FT.
Normal
Depth
FT.
Velocity
FPS
Ditch Liner and Permanent Vegetation Type
VCD 1
2
0.35
0.16
0.5
6.84
1.20
0.067
0.03
100
0.3
1.41
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 2
2
0.191
0.05
0.51
6.84
0.651
0.051
0.0276
1051
0.23
1.051
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 3
2
5.02
0.85
0.5
5.47
13.73
0.075
0.0426
125
0.97
2.88
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 4
2
0.61
0.1
0.5
6.84
2.09
0.097
0.0427
143
0.44
1.44
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 5
2
0.37
0.11
0.51
6.84
1.27
0.102
0.0464
135
0.34
1.24
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 6
2
1.42
0.07
0.5
6.84
4.86
0.084
0.046
250
0.61
2.06
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 7
2
5.84
0
0.5
5.47
15.97
0.042
0.0418
353
0.8
4.53
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 8
2
2.7
1.12
0.51
5.47
7.38
0.047
0.0421
180
0.58
3.42
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 9
2
3.57
1.07
0.5
5.47
9.76
0.034
0.05
148
0.54
4.98
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 10
2
7.84
1.46
0.45
5.19
18.31
0.068
0.05
150
1.06
3.6
N.A.G. C 125 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 11
2
0.931
0.24
0.51
6.84
3.18
0.063
0.022
180
0.52
1.73
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 12
2
3.41
0.19
0.5
5.19
8.85
0.047
0.038
425
0.65
3.46
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 13
2
0.36
0.06
0.5
6.84
1.23
0.077
0.0177
130
0.37
1.07
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 14
2
1.56
0
0.51
5.19
4.05
0.051
0.0419
395
0.45
2.72
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 15
2
2.82
1.04
0.5
5.19
7.32
0.045
0.0476
165
0.55
3.66
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 16
2
1.68
0.65
0.5
6.84
5.75
0.057
0.0234
132
0.65
2.241
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 17
2
4.36
0.39
0.45
6.84
13.42
0.07211
0.051
2351
0.91
3.131
N.A.G. C 125 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)