2007-10-30_PERMIT FILE - C1982057A ‎(4)‎

• Permit No: C1982057A
• IBM Index Class Name: Permit File
• Doc Date: 10/30/2007
• Doc Name: Postmine Drainage Channel Design
• Section_Exhibit Name: Tab 20 Attachment 20-1
• Media Type: D
• Archive: Yes

SEDCAD 4.0
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Channel 005-W-1 - 0.3% Slope
Material: Grass mixture
Triangu/ar Channel
Left Right
Retardance Freeboard Freeboard Freeboard limiting
Sideslope Sideslope Slope (%)
Classes
R
ti
i
R Mult. x
Depth (ft) % of Depth Velocity
(fps)
a
o
at
o (VxD)
3.0:1 3.0:1 0.3 D, B 0.30 5.0
Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 1.00 cfs 1.00 cfs
Depth: 0.85 ft 1.15 ft 1.59 ft 1.89 ft
Top Width: 5.12 ft 6.92 ft 9.51 ft 11.31 ft
Velocity: 0.46 fps 0.13 fps
X-Section Area: 2.19 sq ft 7.54 sq ft
Hydraulic Radius: 0.405 0.752
Froude Number: 0.12 0.03
Roughness Coefficient: 0.0976 0.5085

SEDCAD Utility Run
Printed 08-23-2007
TR-59 20-1-61A Revised 08/07