2012-11-21_PERMIT FILE - C1982056A ‎(2)‎

• Permit No: C1982056A
• IBM Index Class Name: Permit File
• Doc Date: 11/21/2012
• Doc Name: COAL REFUSE DISPOSAL AREA EXPANSION
• Section_Exhibit Name: Exhibit 08EE Coal Refuse Disposal Area Expansion Drainage Designs
• Media Type: D
• Archive: Yes

SEDCAD 4.0
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Refuse Disposal Area - Bench Ditch 4L (BD -4L),
2.4% Slo e
Material: Graded loam to cobbles when noncolloidal
Triangular Channel
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Depth (ft) %'of Depth
Velocity
(fps)
Ratio Ratio
(D)
Velocity:
20.0:1 3.0:1 2.4 0.0300
0.30
5.0
SEDCAD Utility Run Printed 09 -29 -2009
w/o Freeboard w/ Freeboard
Design Discharge:
4.60 cfs
Depth:
0.39 ft 0.69 ft
Top Width:
9.03 ft 15.93 ft
Velocity:
2.59 fps
X- Section Area:
1.77 sq ft
Hydraulic Radius:
0.196 ft
Froude Number:
1.03
SEDCAD Utility Run Printed 09 -29 -2009