SW4220301_Design Calculations_20220524

DITCHLINE FLOW
Low Density
Worksheet
SWALE
NO.
Impervious
Area
AC
Pervious
Area
AREA
I
10
CWIDTH
BOTTOM
LT
SS
RT
SS
SLOPE
LINING
n
DEPTHVEL
SHEAR
STRESS
WP
A
NOTES
TYPE
MATERIAL
1
GI 103
0.033
0.027
0.06
5.67
0.65
E5.61
0
3 : 1
3 : 1
4.50%
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.02
5.49
0.06
0.1
0.1
OFFSITE BYPASS LINE
2
GI 104
0.063
0.127
0.19
5.67
0.65
0
3 : 1
3 : 1
4.50%
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.05
5.49
0.13
0.3
0.1
OFFSITE BYPASS LINE
3
G1201
0.141
0.169
0.31
5.67
0.65
0
3 :1
3 :1
2.35%
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.10
3.97
0.14
0.6
0.3
4
GI 202
0.279
1.371
1.65
5.67
0.6
0
3 :1
3 :1
2.35%
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.47
3.97
0.69
3.0
1.4
5
G1301
0.132
0.114
0.25
5.67
0.8
1.12
0
3 :1
3 :1
9.39%
PERMANENT
EXCLESIOR- CURLEX II/GRASS
0.035
0.05
7.93
0.29
0.3
0.2
STEEP SLOPE EROSION
6
GI 304
0.072
0.168
0.24
5.67
0.8
1.09
0
3 :1
3 :1
2.35%
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.09
3.97
0.13
0.6
0.3
STEEP SLOPE EROSION
7
GI 305
0.207
1.313
1.52
5.67
0.55
4.74
0
3 : 1
3 : 1
2.35%
PERMANENT
EXCLESIOR -CURLEX I/GRASS
0.035
0.40
3.97
0.59
2.5
1.2
REMOVE GI 202 SENDS MORE WATER TO INLET
8
G1401
0.115
0.105
0.22
5.67
0.8
1.00
0
3 : 1
3 : 1
1.00
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.13
2.59
0.08
0.8
0.4
OFFSITE BYPASS LINE
9
GI 402
0.204
0.886
1.09
5.67
0.6
3.71
0
3 : 1
3 : 1
1.00
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.48
2.59
0.30
3.0
1.4
OFFSITE BYPASS LINE
10
GI 403
0.000
0.480
0.48
5.67
0.55
1.50
0
3 : 1
3 : 1
2.00
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.14
3.66
0.17
0.9
0.4
OFFSITE BYPASS LINE
11
GI 404
0.000
0.930
0.93
5.67
0.55
2.90
0
3 : 1
3 : 1
2.00
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.27
3.66
0.33
1.7
0.8
OFFSITE BYPASS LINE
12
GI 407
0.206
1.434
1.64
5.67
0.6
5.58
0
3 : 1.3
: 1
2.35%
PERMANENT
EXCLESIOR -CURLEX I/GRASS
0.035
0.47
3.97
0.69
3.0
1.4
REMOVAL SENDS MORE WATER TO GI 402
13
GI 405
0.247
1.053
1.3
5.67
0.55
4.05
0
3 :1
3 :1
1.00
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.52
2.59
0.32
3.3
.1.61
ROADSUMP
14
GI 406
0.065
0.085
0.15
5.67
0.8
0.68
0
3 :1
3 :1
1.00
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.09
2.59
0.06
0.6
0.3
ROADSUMP
15
YI 503
0.121
12.369
12.49
5.67
0.5
35.41
8
3 :1
3:1
6.45q
PERMANENT
EXCLESIOR- CURLEX I/GRASS
0.035
0.48
6.64
1.95
11.1
5.3
OFFSITE DRAINAGE
16
GI 502
0.122
0.338
0.46
5.67
0.65
1.70
0
3 :1
3 :1
9.10q
PERMANENT
EXCLESIOR- CURLEX II/GRASS
0.035
0.07
7.81
0.41
0.5
0.2
STEEP SLOPE EROSION
17
0.103
0.097
0.2
5.67
0.65
0.74
0
13 :1
3 :1
9.10%
IPERMANENT
1EXCLESIOR - CURLEX II/GRASS
0.035
0.03
7.81
0.19
1 0.2
10.11
STEEP SLOPE EROSION