PERMFILE71521

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 9/11/2006
• 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~e~+ooa o~~.vi~ i c.m,~e
w/o Freeboard wJ Freeboard
Velocity*:
X-Section Area: 0.14 sq ft
Hydraulic Radius: 0.044
Froude Number*:
Manning's n*:
Dmin: 4.00 in
D50: 12.00 in
Dmax: 15.00 in
Velotlty and Manning's n calculatons may not apply for this method.
Structure #24 (Riprap Channel
WEST Dll/ERSION
Trapezoidal Riprap Channel Inputs:

Material: Riprap
Left
Bottom Right Freeboard Freeboard Freeboard
Sideslope
Width (R)} R
t Sideslope Slope (%)
R
i
Depth (R) % of Depth Mult x
a
o at
o (VxD)
3.00 1.5:1 1.5:1 10.0 0.30
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 2.92 cfs
Depth: 0.14 ft 0.44 ft
Top Width: 3.42 R 4.32 ft
velocity*:
X-Section Area: 0.45 sq R
Hydraulic Radius: 0.129
Froude Number*:
Manning's n*:
Dmin: 3.00 in
D50: 9.00 in
Dmax: 11.25 in
Velocty and Manning's n calculations may not apply for this method.
Structure #16 (Erodible Channel
F12
•
Filename: POND F.sc4
F1 PPRbv~
TR-43 9~ii~o6
App. B-11
Printed 09-01-2006
O9i06