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
I' —,,W,+ 1000 -InnI2 0-1a 1 QnH—K
i Refuse Disposal Area - Channel RDA -if (Lower),
10.0% Slope
Material: Riprap
Trapezoidal Channel
Left Right
Freeboard Freeboard Freeboard
Bottom
Sideslope Sideslope Slope ( %)
Depth (ft) % of Depth Mult. x
Depth
Ratio Ratio
(VxD)
3.00 3.0:1 3.0:1 10.0
0.30
PADER Method - Steep Slope Design
•
SEDCAD Utility Run Printed 09 -28 -2009
w/o Freeboard w/ Freeboard
Design Discharge:
69.50 cfs
Depth:
1.24 ft 1.54 ft
Top Width:
10.41 ft 12.21 ft
Velocity:
8.39 fps
X- Section Area:
8.28 sq ft
Hydraulic Radius:
0.766 ft
Froude Number:
1.66
Manning's n:
0.0470
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
SEDCAD Utility Run Printed 09 -28 -2009