PERMFILE48355

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 3/23/2004
• Doc Name: Appendix A to Appendix C - Report Dated 11/10/03
• Section_Exhibit Name: Coal Mine Waste Disposal Area No. 2
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
r,...,m,.ro ~°oa c~..,a~~ i c~w.,~n
7
Structure Detai/;
Structure #23 (Riprap Channe/~
D-F23
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%) Mult
x
Ratio Ratio Depth (R) % of Depth .
(VxD)
1.5:1 1.5:1 30.0 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 1.16 cfs
Depth: - 0.06 R 1.06 R
Top Width: 0.17 R 3.17 R
Velocity*:
X-Section Area: 0.00 sq ft
Hydraulic Radius: 0.024
Froude Number*:
Manning's n*:
Dmin: 4.00 in
D50: 12.00 in
Omax: 15.00 in
Velocity and Manning's n calculations may not apply for this method.
Structure #24 (Riprap Channe/~
D-F24
Trapezoidal Riprap Channel Inputs:
Material: Riprap
I
Bottom Left Right Freeboard Freeboard Freeboard
Sideslope
Width (R)} Sideslope Slope (%)
Depth (ft) % of Depth Mult. x
Ratio Ratio (~D)
3.00 1.5:1 1.5:1 40.0 1.00
Riprap Channel Results:
Filename: GobPileDitches.sc4
APP-B - 15 -
Printed 10.29-2003
11 /03