SW3181201_Design Calculations (Swale)_20220831

Rob Wallace Park - Phase 1113
Swale Runoff Calcs - Revised 8.29.22
RAW AREA (SF)
ACRES
Swale 1
76,656.00
1.76 Land Total
C
INDIVIDUAL C
Drainage Area 1
LAND
69,554.00
1.60 Pervious
0.30
0.27
7,102.00
0.16Impervious
0.95
0.09
ROOF
0.00
0.00 Roof
0.95
0.00
Q10
TOTAL
76,656.00
1.76
0.36
4.68
Swale 2
108,888.00
2.50 Land Total
C
INDIVIDUAL C
Drainage Areas 1, 1A
LAND
88,541.00
2.03 Pervious
0.30
0.24
20,347.00
0.47Impervious
0.95
0.18
ROOF
0.00
0.00 Roof
0.95
0.00
Q10
TOTAL
108,888.00
2.50
0.42
7.79
Swale 3
111,113.00
2.55 Land Total
C
INDIVIDUAL C
Drainage Areas 1, 1A, 113
LAND
105,906.00
2.43 Pervious
0.301
0.25
22,512.00
0.52Impervious
0.951
0.17
ROOF
0.00
0.00 Roof
0.95
0.00
Q10
TOTAL
128,418.00
2.95
0.41
9.02
Swale 4
67,434.00
1.55 Land Total
C
INDIVIDUAL C
Drainage Areas 2, 5,6 & 7
LAND
18,831.00
0.43 Pervious
0.30
0.08
48,603.00
1.12Impervious
0.95
0.68
ROOF
0.00
0.00 Roof
0.95
0.00
Q10
TOTAL
67,434.00
1.55
0.77
8.79
Swale 5
33,880.00
0.78 Land Total
C
INDIVIDUAL C
Clean Water
LAND
29,116.00
0.67 Pervious
0.30
0.26
4,764.00
0.11Impervious
0.95
0.13
ROOF
0.00
0.00 Roof
0.95
0.00
Q10
TOTAL
33,880.00
0.78
0.39
2.25
Swale 6
22,154.00
0.51 Land Total
C
INDIVIDUAL C
Drainage Area 9
LAND
13,542.00
0.31 Pervious
0.30
0.18
8,612.00
0.20Impervious
0.95
0.37
ROOF
0.00
0.00 Roof
0.95
0.00
Q10
TOTAL
22,154.00
0.51
0.55
2.08
Swale 7
20,909.00
0.48 Land Total
C
INDIVIDUAL C
Drainage Area 10
LAND
6,907.00
0.16 Pervious
0.30
0.10
14,002.00
0.32Impervious
0.95
0.64
ROOF
0.00
0.00 Roof
0.95
0.00
Q10
TOTAL
20,909.00
0.48
0.74
2.61
Swale 8
6,368.00
0.15 Land Total
C
INDIVIDUAL C
Drainage Area 11
LAND
1,382.00
0.03 Pervious
0.30
0.06
4,986.00
0.11Impervious
0.95
0.74
ROOF
0.00
0.00 Roof
0.95
0.00
Q10
TOTAL
6,368.00
0.15
0.81
0.87
Swale 9
8,309.00
0.19 Land Total
C
INDIVIDUAL C
Drainage Area 12
LAND
3,541.00
0.08 Pervious
0.30
0.13
4,768.00
0.11Impervious
0.95
0.55
ROOF
0.00
0.00 Roof
0.95
0.00
Q10
TOTAL
8,309.00
0.19
0.67
0.95
Swale 10
5,232.00
0.12 Land Total
C
INDIVIDUAL C
Drainage Area 13
LAND
1,211.00
0.03 Pervious
0.30
0.07
4,021.00
0.09Impervious
0.95
0.73
ROOF
0.00
0.00 Roof
0.95
0.00
Q10
TOTAL
5.232.00
0.12
0.80
0.71

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Swale #1
Trapezoidal
Bottom Width (ft)
= 2.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 511.63
Slope (%)
= 1.88
N-Value
= 0.030
Calculations
Compute by:
Known Q
Known Q (cfs)
= 4.68
Elev (ft) Section
513.00
512.50
512.00
511.50
511.00
1 2 3 4
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Yc (ft)
Top Width (ft)
EGL (ft)
5 6
Reach (ft)
Wednesday, Aug 31 2022
= 0.45
= 4.680
= 1.51
= 3.10
= 4.85
= 0.45
= 4.70
= 0.60
Depth (ft)
1.37
1 :l
0.37
-0.13
RdSe7
7 8 9 10 - --

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Swale #2
Trapezoidal
Bottom Width (ft)
= 2.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 507.13
Slope (%)
= 3.74
N-Value
= 0.030
Calculations
Compute by:
Known Q
Known Q (cfs)
= 7.79
Elev (ft) Section
509.00
508.50
507.50
507.00
506.50
Wednesday, Aug 31 2022
Highlighted
Depth (ft)
= 0.49
Q (cfs)
= 7.790
Area (sqft)
= 1.70
Velocity (ft/s)
= 4.58
Wetted Perim (ft)
= 5.10
Crit Depth, Yc (ft)
= 0.59
Top Width (ft)
= 4.94
EGL (ft)
= 0.82
1 2 3 4 5 6 7 8 9 10
Reach (ft)
Depth (ft)
1.87
1.37
1 :l
0.37
-0.13
RdSe7

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Swale #3
Trapezoidal
Bottom Width (ft)
= 2.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 503.77
Slope (%)
= 2.32
N-Value
= 0.030
Calculations
Compute by:
Known Q
Known Q (cfs)
= 9.02
Elev (ft) Section
505.00
504.50
504.00
503.50
503.00
1 2 3 4
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Yc (ft)
Top Width (ft)
EGL (ft)
5 6
Reach (ft)
Wednesday, Aug 31 2022
= 0.60
= 9.020
= 2.28
= 3.96
= 5.79
= 0.63
= 5.60
= 0.84
Depth (ft)
1.23
0.73
0.23
-0.27
RIir1
7 8 9 10 -

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Swale #4
Trapezoidal
Bottom Width (ft)
= 2.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 498.22
Slope (%)
= 2.22
N-Value
= 0.030
Calculations
Compute by:
Known Q
Known Q (cfs)
= 8.79
Elev (ft) Section
500.00
499.50
499.00
498.50
498.00
497.50
Wednesday, Aug 31 2022
Highlighted
Depth (ft)
= 0.60
Q (cfs)
= 8.790
Area (sqft)
= 2.28
Velocity (ft/s)
= 3.86
Wetted Perim (ft)
= 5.79
Crit Depth, Yc (ft)
= 0.63
Top Width (ft)
= 5.60
EGL (ft)
= 0.83
1 2 3 4 5 6 7 8 9 10
Reach (ft)
Depth (ft)
1.78
1.28
0.78
0.28
-0.22
W2WM

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Swale - 5 - Clean
Water
Trapezoidal
Bottom Width (ft)
= 2.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 510.01
Slope (%)
= 1.88
N-Value
= 0.030
Calculations
Compute by:
Known Q
Known Q (cfs)
= 2.25
Elev (ft) Section
512.00
511.50
511.00
510.50
510.00
509.50
Wednesday, Aug 31 2022
Highlighted
Depth (ft)
= 0.31
Q (cfs)
= 2.250
Area (sqft)
= 0.91
Velocity (ft/s)
= 2.48
Wetted Perim (ft)
= 3.96
Crit Depth, Yc (ft)
= 0.30
Top Width (ft)
= 3.86
EGL (ft)
= 0.41
1 2 3 4 5 6 7 8 9 10
Reach (ft)
Depth (ft)
1.99
1.49
0.49
-0.01
WMIS

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Swale - 6
Trapezoidal
Bottom Width (ft)
= 2.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 503.11
Slope (%)
= 3.58
N-Value
= 0.030
Calculations
Compute by:
Known Q
Known Q (cfs)
= 2.08
Elev (ft) Section
505.00
504.50
504.00
503.50
503.00
502.50
Wednesday, Aug 31 2022
Highlighted
Depth (ft)
= 0.25
Q (cfs)
= 2.080
Area (sqft)
= 0.69
Velocity (ft/s)
= 3.03
Wetted Perim (ft)
= 3.58
Crit Depth, Yc (ft)
= 0.28
Top Width (ft)
= 3.50
EGL (ft)
= 0.39
1 2 3 4 5 6 7 8 9 10
Reach (ft)
Depth (ft)
1.89
1.39
0.39
-0.11
■iftx

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Swale #7
Trapezoidal
Bottom Width (ft)
= 2.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 504.99
Slope (%)
= 1.06
N-Value
= 0.030
Calculations
Compute by:
Known Q
Known Q (cfs)
= 2.61
Elev (ft)
506.00
505.50
505.00
504.50
Section
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Yc (ft)
Top Width (ft)
EGL (ft)
1 2 3 4 5 6 7 8
Reach (ft)
Wednesday, Aug 31 2022
= 0.39
= 2.610
= 1.24
= 2.11
= 4.47
= 0.32
= 4.34
= 0.46
Depth (ft)
1.01
0.51
0.01
-0.49
-0.99
9 10

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Swale #8
Trapezoidal
Bottom Width (ft)
= 2.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 503.41
Slope (%)
= 3.39
N-Value
= 0.030
Calculations
Compute by:
Known Q
Known Q (cfs)
= 0.87
Elev (ft) Section
505.00
504.50
504.00
503.50
503.00
502.50
Wednesday, Aug 31 2022
Highlighted
Depth (ft)
= 0.16
Q (cfs)
= 0.870
Area (sqft)
= 0.40
Velocity (ft/s)
= 2.19
Wetted Perim (ft)
= 3.01
Crit Depth, Yc (ft)
= 0.17
Top Width (ft)
= 2.96
EGL (ft)
= 0.23
1 2 3 4 5 6 7 8 9 10
Reach (ft)
Depth (ft)
1.59
1.09
0.59
-0.41
■rzz

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Swale #9
Trapezoidal
Bottom Width (ft)
= 2.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 503.16
Slope (%)
= 2.55
N-Value
= 0.030
Calculations
Compute by:
Known Q
Known Q (cfs)
= 0.95
Elev (ft) Section
505.00
504.50
504.00
503.50
503.00
502.50
Wednesday, Aug 31 2022
Highlighted
Depth (ft)
= 0.18
Q (cfs)
= 0.950
Area (sqft)
= 0.46
Velocity (ft/s)
= 2.08
Wetted Perim (ft)
= 3.14
Crit Depth, Yc (ft)
= 0.18
Top Width (ft)
= 3.08
EGL (ft)
= 0.25
1 2 3 4 5 6 7 8 9 10
Reach (ft)
Depth (ft)
1.84
1.34
0.84
0.34
-0.16
■r.T_rN

Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Swale #10
Trapezoidal
Bottom Width (ft)
= 2.00
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 49859.00
Slope (%)
= 3.32
N-Value
= 0.030
Calculations
Compute by:
Known Q
Known Q (cfs)
= 0.71
Elev (ft) Section
49861.00
49860.50
49860.00
49859.50
49859.00
49858.50
Wednesday, Aug 31 2022
Highlighted
Depth (ft)
= 0.14
Q (cfs)
= 0.710
Area (sqft)
= 0.34
Velocity (ft/s)
= 2.10
Wetted Perim (ft)
= 2.89
Crit Depth, Yc (ft)
= 0.15
Top Width (ft)
= 2.84
EGL (ft)
= 0.21
1 2 3 4 5 6 7 8 9 10
Reach (ft)
Depth (ft)
2.00
1.50
1.00
0.50
wixffel