2013-02-11_PERMIT FILE - C1996083A

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 2/11/2013
• Doc Name: Appendix A through Appendix C
• Section_Exhibit Name: Volume IX Coal Mine Waste Disposal Area No. 2
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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Structure Detail;
Structure #19 (R /.prap Chann
F15
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Width (ft) Sideslope Sideslope Slope ( %)
Ratio Ratio
Depth (ft ) % of Depth Mult x VxD )
3.00 1.5:1 1.5:1 30.0
I 0.30
Riprap Channel Results:
Simons /4SM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Filename- Pond F100 Year.sc4
1
Printed 10 -29 -2012
TR -76 App. B -33 11/12
w/o Freeboard w/ Freeboard
Design Dlscharge:
1.10 crs
Depth:
0.03 ft 0.33 ft
Top Width:
3.10 ft 4.00 ft
Velocity*:
X- Section Area:
0.11 sq ft
Hydraulic Radius:
0.034 ft
Froude Number *:
Manning's n *:
Dmin:
3.00 in
D50:
9.00 in
Dmax:
11.25 in
Velocity and Manning's n calculations may not apply for this method.
Filename- Pond F100 Year.sc4
1
Printed 10 -29 -2012
TR -76 App. B -33 11/12