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
1
Refuse Disposal Area - Bench Ditch 4R (BD -4R),
2.5% Slope
Material: Graded loam to cobbles when noncolloidal
Triangular Channel
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope ( %) Manning's n Mult. x Velocity
Ratio Ratio Depth (ft) % of Depth (VxD) (fps)
20.0:1 3.0:1 2.5 0.0300 0.30 5.0
•
SEDCAD Utility Run Printed 08 -10 -2009
w/o Freeboard w/ Freeboard
Design Discharge:
11.30 cfs
Depth:
0.55 ft 0.85 ft
Top Width:
12.56 ft 19.46 ft
Velocity:
3.30 fps
X- Section Area:
3.43 sq ft
Hydraulic Radius:
0.272 ft
Froude Number:
1.11
•
SEDCAD Utility Run Printed 08 -10 -2009