SW3231004_Design Calculations_20240405

Channel Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Friday,Apr 5 2024
GI#10 Outlet
Circular Highlighted
Diameter (ft) = 2.00 Depth (ft) = 0.94
Q (cfs) = 6.990
Area (sqft) = 1.46
Invert Elev (ft) = 100.00 Velocity (ft/s) = 4.79
Slope (%) = 1.50 Wetted Perim (ft) = 3.03
N-Value = 0.023 Crit Depth, Yc (ft) = 0.94
Top Width (ft) = 2.00
Calculations EGL (ft) = 1.30
Compute by: Known Q
Known Q (cfs) = 6.99
Elev (ft) Section Depth (ft)
103.00 3.00
102.50 2.50
102.00 - 2.00
101.50 1.50
101.00 0 1.00
100.50 0.50
100.00 0.00
99.50 -0.50
0 1 2 3 4
Reach (ft)

NORTH North American Green
5401 St. Wendel-Cynthiana Rd.
AMERICAN Poseyville, Indiana 47633
GREEN Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
CHANNEL ANALYSIS
>>>Outlet
Name Outlet
Discharge 7
Channel Slope 0.02
Channel Bottom Width 1.5
Left Side Slope 2
Right Side Slope 2
Low Flow Liner
Retardence Class C 6-12 in
Vegetation Type Bunch Type
Vegetation Density Good 65-79%
Soil Type Clay Loam(CL)
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Remarks
Depth Mannings N Shear Stress Shear Stress Factor Pattern
Unreinforced Straight 7 cfs 2.46 ft/s 0.87 ft 0.055 4 lbs/ft2 1.09 lbs/ft2 3.67 STABLE
Vegetation
Underlying Straight 7 cfs 2.46 ft/s 0.87 ft 0.055 2.89 lbs/ft2 0.66 lbs/ft2 4.41 STABLE --
Substrate