2010-10-07_PERMIT FILE - C1994082

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 10/7/2010
• Doc Name: Post Mining Channels SEDCAD Results/Channel YPM-1 to YPM-8
• Section_Exhibit Name: Tab 13 Attachment 13-12 Appendix 13-12.3
• Media Type: D
• Archive: No

SEDCAD 4.0
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/ Material: Ri rap
Trapezoidal Channel
Left Right
Bottom Freeboard .Freeboard Freeboard
Sidesiope Sideslope Slope (%)
Width (ft) Mult. x
Depth (ft) % of Depth
Ratio Ratio (VxD)
1.00 3.0:1 3.0:1 8.0 0.30
PADER Method -Steep Slope Design

~I
~J
w/o Freeboard w/ Freeboard
Design Discharge: 9.10 cfs
Depth: 0.62 ft 0.92 ft
Top Width: 4.74 ft 6.54 ft
Velocity: 5.09 fps
X-Section Area: 1.79 sq ft
Hydraulic Radius: 0.362
Froude Number: 1.46
Manning's n: 0.0420
Dmin: 2.00 in
D50: 3.00 in
Dmax: 4.50 in
SEDCAD Utility Run Printed 02-18-2008
TR-37 13-12.3-55 Revised 02/08