2013-07-29_PERMIT FILE - C1982056 ‎(4)‎

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 7/29/2013
• Doc Name: COAL REFUSE DISPOSAL AREA EXPANSION
• Section_Exhibit Name: Exhibit 08EE Coal Refuse Disposal Area Expansion Drainage Designs
• Media Type: D
• Archive: No

SEDCAD 4.0
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• Refuse Disposal Area - Channel RDA -1d, 3.5% Slope
Material: Riprap
Trapezoidal Channel
Bottom Left Right
Freeboard Freeboard Freeboard
Width (ft) Sideslope Sideslope Slope ( %)
Ratio Ratio
Depth (ft) % of Depth Mult. x
P
Depth:
(V
4.00 3.0:1 3.0:1 3.5
0.30
PADER Method - Steep Slope Design
•
SEDCAD Utility Run Printed 09 -28 -2009
w/o Freeboard w/ Freeboard
Design Discharge:
83.30 cfs
Depth:
1.50 ft 1.80 ft
Top Width:
12.99 ft 14.79 ft
Velocity:
6.54 fps
X- Section Area:
12.73 sq ft
Hydraulic Radius:
0.944 ft
Froude Number:
1.17
Manning's n:
0.0410
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
SEDCAD Utility Run Printed 09 -28 -2009