2015-04-02_PERMIT FILE - C1996083

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 4/2/2015
• Doc Name: Appendix B - Protection of Hydrologic Balance
• Section_Exhibit Name: Volume XI Coal Mine Waste Disposal Area No. 3
• Media Type: D
• Archive: Yes

SEDCAD 4.0
Cnrnminht 100R_9nin Oamola I .Crhwah
1
East Clean Water Diversion - (7.5 %) - 10 Year
Material: Riprap
Triangular Channel
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
9.68 cfs
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
1.5:1 1.5:1 7.5
1.00
PADER Method - Steep Slope Design
Flow Derived from:
Drainage Area "D" (10- year): 3.47
W. Div. Ditch #1 (10- Year): 4.44
Individual SWS: 1.77
Total: 9.68
SEDCAD Utility Run
Printed 12 -19 -2014
TR -91 Volume XI, App. B -77 12/14
w/o Freeboard w/ Freeboard
Design Discharge:
9.68 cfs
Depth:
1.03 ft 2.03 ft
Top Width:
3.09 ft 6.09 ft
Velocity:
6.10 fps
X- Section Area:
1.59 sq ft
Hydraulic Radius:
0.428 ft
Froude Number:
1.50
Manning's n:
0.0380
Dmin:
2.00 in
D50:
3.00 in
Dmax:
4.50 in
Flow Derived from:
Drainage Area "D" (10- year): 3.47
W. Div. Ditch #1 (10- Year): 4.44
Individual SWS: 1.77
Total: 9.68
SEDCAD Utility Run
Printed 12 -19 -2014
TR -91 Volume XI, App. B -77 12/14