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
(`nrnrcinht 1ggA Pomch I Gh~nioh
•
YPM-18: 11% Slope
Material: Riprap
Trapezoidal Channel
Left Right Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope (%) Mult. x
~ Width (ft) Ratio Ratio Depth (ft) % of Depth (VxD)
1.00 3.0:1 3.0:1 11.0 0.30
PADER Method -Steep Slope Design
•
w/o Freeboard w/ Freeboard
Design Discharge: 1.50 cfs
Depth: 0.24 ft 0.54 ft
Top Width: 2.42 ft 4.22 ft
Velocity: 3.68 fps
X-Section Area: 0.41 sq ft
Hydraulic Radius: 0.163
Froude Number: 1.58
Manning's n: 0.0400
Dmin: 1.00 in
D50: 1.50 in
Dmax: 3.00 in
PADER Method unable to calculate rock riprap size for peak flow = 1.2 cfs, consequently 1.5 cfs
used for design.
•
SEDCAD Utility Run
TR-36
13-12.3-49
Printed 08-03-2007
Revised 08/07