PERMFILE44218

• Permit No: C1982057
• IBM Index Class Name: Permit File
• Doc Date: 5/1/2003
• Doc Name: Post Mining Channel Design
• Section_Exhibit Name: Tab 13 Attachment 13-5B Appendix 3
• Media Type: D
• Archive: No

SEDCAD 4.0
Copyright 7898 Pamela J. Sdrvrab
Civil SoRware Design
Post Mining Channels PM - 3 Lower
Material; Riprap
Simons/OSM Method -Steep Slope Design
- _~~~-~ _.;~ ~s~' w}iii std _=w~['F2eeboarc_1a;
Design Discharge: 23.90 cfs
Depth: 0.34 ft 1.34 R
lop Width: 8.03 ft 14.03 ft
Velocity*:
X-Section Area: 2.37 sq R
Hydreulic Radius: 0.291
Froude Number:
Manning's n*:
Dmin: ~ 2.00 in
DSO: 6.00 in
Dmax: 7.50 in
Velocity and Manning's n calculations may not appty for this method.
SEDCAD Utility Run Printed 12-06-2001
Trapezoidal Channel