2021-04-05_PERMIT FILE - C1981019A ‎(5)‎

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

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Velocity and Manning's n calculations may not apply for this method.
Structure #15(Vegetated Channel
East Tay/or Ditch - Veg ETD-1 to 38+30
Trapezoidal Vegetated Channel Inputs:
Material: Tall fescue
Left Right Freeboard Limiting
9 Freeboard Freeboard g
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 1.8 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: 42.35 cfs 42.35 cfs
Depth: 0.83 ft 1.33 ft
Top Width: 16.96 ft 19.97 ft
Velocity: 3.54 fps 1.99 fps
X-Section Area: 11.98 sq ft 21.25 sq ft
Hydraulic Radius: 0.695 ft 1.041 ft
Froude Number: 0.74 0.34
Roughness 0.0443 0.1030
Coefficient:
Structure #14(Ponds
ET9-1 Stock Pond
Pond Inputs:
Initial Pool Elev: 7,287.01 ft
Initial Pool: 0.01 ac-ft
Emergency Spillwax
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
7,289.00 30.00 2.00:1 2.00:1 32.00
Emergency Spillwax
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
7,291.00 20.00 2.00:1 2.00:1 15.00
Filename: East Taylor Pond 25 Yr 24 Hr Post Mine.sc4 Printed 03-24-2021