PERMFILE124364

• Permit No: C1980006
• IBM Index Class Name: Permit File
• Doc Date: 5/17/2004
• Doc Name: SEDCAD Calculations
• Section_Exhibit Name: Exhibit 42A
• Media Type: D
• Archive: No

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KERB COAL COMPANY
CHANNEL DESIGN
•

CHANNEL ~ - PD1
DESIGN PEAK FLOW (Cfs), Q =
MANNING'S NUMBER, n = 0.0350
CHANNEL SIDE SLOPE, Z = 3.0
HYDRAULIC RADIUS, R = 0.8403
WETTED PERIMETER, P = 12.22
39.27 CHANNEL SHAPE - TRAPEZOIDAL
X-SECTION AREA = 10.27
TOP WIDTH OF CHANNEL, T = 13.60
TOTAL DEPTH OF CHANNEL, D = 1.60
CHANNEL SLOPE = 1.00
VELOCITY = 3.8
DEPTH OF FLOW, d = 1.30
BOTTOM WIDTH, b = 4.00
WIDTH OF STREAM, t = 11.80
FREEBOARD = 0.30