2021-04-05_PERMIT FILE - C1981019A ‎(18)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 4/5/2021
• Doc Name: Streeter Pond and Permanent Channels
• Section_Exhibit Name: Exhibit 07 Item 14 Appendix Exh7-14SP
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
!`nn.,rin h4 100A 9n1n D-1� I Q,k--h
10
Structure Detail;
Structure #18(Vegetated Channel
Streeter Ditch 125+00 to 187+00
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)
15.00 3.0:1 3.0:1 2.6 D, B 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: 21.73 cfs 21.73 cfs
Depth: 0.51 ft 0.90 ft
Top Width: 18.05 ft 20.39 ft
Velocity: 2.59 fps 1.37 fps
X-Section Area: 8.39 sq ft 15.89 sq ft
Hydraulic Radius: 0.461 ft 0.768 ft
Froude Number: 0.67 0.27
Roughness 0.0552 0.1473
Coefficient:
Structure #17(Vegetated Channel
Buckskin Ditch
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
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 4.0 D, B 7.0
Vegetated Channel Results:
Filename: Exhibit 7-14SP Streeter Pond 10 Yr 24 Hr.sc4 Printed 01-19-2021