2021-12-15_PERMIT FILE - C1981019A

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 12/15/2021
• Doc Name: East Taylor Pond & Permanent Channels
• Section_Exhibit Name: Exhibit 07 Item 14 Appendix Exh7-14ET
• Media Type: D
• Archive: Yes

Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom
Width (ft)
Left
Sideslope
Ratio
Right
Sideslope
Ratio
Slope (%)Freeboard
Depth (ft)
Freeboard
% of Depth
Freeboard
Mult. x
(VxD)
12.00 3.0:1 3.0:1 6.8
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 3.91 cfs
Depth: 0.08 ft
Top Width: 12.46 ft
Velocity*:
X-Section Area: 0.93 sq ft
Hydraulic Radius: 0.074 ft
Froude Number*:
Manning's n*:
Dmin: 1.00 in
D50: 3.00 in
Dmax: 3.75 in
Velocity and Manning's n calculations may not apply for this method.
Structure #9 (Pond)
TD-1 Stockpond
Pond Inputs:
Initial Pool Elev: 7,283.01 ft
Initial Pool: 0.00 ac-ft
*Sediment Storage: 0.00 ac-ft
Dead Space: 0.00 %
*No sediment capacity defined
Emergency Spillway
Spillway Elev Crest Length
(ft)
Left
Sideslope
Right
Sideslope
Bottom
Width (ft)
7,287.00 20.00 2.00:1 2.00:1 30.00
Pond Results:
Peak Elevation: 7,287.04 ft
H'graph Detention Time: 1.27 hrs
Pond Model: CSTRS
Filename: East Taylor Pond 10 Yr 24 Hr Post Mine.sc4 Printed 11-08-2021
SEDCAD 4 for Windows
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