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 #20 (Ri ,r Channell
FI6
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (ft) Ratio Ratio Depth (ft) % of Depth Mult. x (VXD;
3.00 1.5:1 1.5:1 10.0 j 1.00
Riprap Channel Results:
Simons /OSM Method - Steep Slope Design
Filename: Pond F100 Year.sc4
TR -76
Velocity and Manning's n calculations may not apply for this method.
App. B -34
1
Printed 11 -08 -2012
11/12
w/o Freeboard w/ Freeboard
Design Discharge:
19.86 cis
-
Depth:
0.38 ft 1.38 ft
Top Width:
4.13 ft 7.13 ft
Velocity*:
X-Section Area:
1.35 sq ft
Hydraulic Radius:
0.309 ft
Froude Number *:
Manning's n *:
Dmin:
5.00 in
D50:
15.00 in
Dmax:
18.75 in
Velocity and Manning's n calculations may not apply for this method.
App. B -34
1
Printed 11 -08 -2012
11/12