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 -if (Lower),
3.0% Slope
Material: Riprap
Trapezoidal Chanel
Left Right
Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope ( %)
Mult. x
Width Ratio Ratio
De th (ft) % of D epth
p (VxD)
3.00 3.0:1 3.0:1 3.0
0.30
PADER Method - Steep Slope Design
•
•
SEDCAD Utility Run Printed 09 -28 -2009
w/o Freeboard ..; w/ Freeboard.,
Design Discharge:
69.50 ds
Depth:
1.45 ft 1.75 ft
Top Width:
11.68 ft 13.48 ft
Velocity:
6.55 fps
X- Section Area:
10.61 sq ft
Hydraulic Radius:
0.874 ft
Froude Number:
1.21
Manning's n:
0.0360
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
SEDCAD Utility Run Printed 09 -28 -2009