2021-04-05_PERMIT FILE - C1981019A ‎(19)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 4/5/2021
• Doc Name: West Taylor Pond and Channels
• Section_Exhibit Name: Exhibit 07 Item 20 Part B -ST
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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Trapezoidal Vegetated Channel Inputs:
Material: Bermuda grass
Left Right Freeboard Limiting
9 Freeboard Freeboard 9
Bottom Retardance
Sideslope Sideslope Slope(%) Classes Mult. x Velocity
Width(ft) Ratio Ratio Depth (ft) %of Depth (VxD) (fps)
12.00 3.0:1 3.0:1 8.0 D, B 3.53 7.0
Vegetated Channel Results:
Stability Stability Capacity Capacity
Class D w/o Class D w/ Class B w/o Class B w/
Freeboard Freeboard Freeboard Freeboard
Design Discharge: 6.03 cfs 6.03 cfs
Depth: 0.23 ft 3.76 ft 0.47 ft 4.00 ft
Top Width: 13.39 ft 34.57 ft 14.80 ft 35.98 ft
Velocity: 2.05 fps 0.97 fps
X-Section Area: 2.95 sq ft 6.24 sq ft
Hydraulic Radius: 0.219 ft 0.418 ft
Froude Number: 0.77 0.26
Roughness 0.0745 0.2437
Coefficient:
Structure #10(Vegetated Channe/�
Trib I
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
Bottom
Left Right Retardance Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope(%) Classes Mult. x Velocity
Width(ft) Ratio Ratio Depth (ft) %of Depth (VxD) (fps)
6.00 3.0:1 3.0:1 5.0 D, B 1.21 7.0
Vegetated Channel Results:
Stability Stability Capacity Capacity
Class D w/o Class D w/ Class B w/o Class B w/
Freeboard Freeboard Freeboard Freeboard
Design Discharge: 9.76 cfs 9.76 cfs
Depth: 0.44 ft 1.65 ft 0.79 ft 2.00 ft
Top Width: 8.65 ft 15.91 ft 10.75 ft 18.01 ft
Velocity: 3.02 fps 1.47 fps
X-Section Area: 3.23 sq ft 6.62 sq ft
Hydraulic Radius: 0.367 ft 0.602 ft
Froude Number: 0.87 0.33
Filename:West Taylor Pond 10 YR-24 HR.sc4 Printed 01-05-2021