PERMFILE117960

• Permit No: C1980006
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: Exhibit 42A Part 2
• Media Type: D
• Archive: No

~i
IO:RR COAL CdPANY
CHANNEL DESIGN
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CXANNEt / - HAUL ROAD DiTCN 2
DESid PEAK FLOW (efe), 4 7.74
MANN IN6~S MUIBER, n 0.0350
CHANNEL SHAPE - TRIANOUTAR
CHANNEL SLOPE (X) = 0.50
CHANNEL SIDE SLOPE, 2 = 2.0
HYDRAULIC RADIUS, R = 0.3433
VELOCITY (fps) = 1.5
DEPTX OF FLOW (f t), d = 0.77
WETTED PERIMETER, P 3.47 BOTTgI WIDTX (1[), b = 0.00
%-SECTION AREA (sq-f t) = 1.18 WIDTH OF STREAM (ft), t = 3.07
TOP YIDTN OF CHANNEL (ft), i = 4.27 FREEBOARD (f t) = 0.30
TOTAL DEPTH Of CHANNEL (f [), D = 7.07
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