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

•
KERB COAL COMPANY
CHANNEL DESIGN
•

CHANNEL ,~ - R
DESIGN PEAK FLOW (cfs), Q = 0.02
MANNING'S NUMBER, n = 0.0350
CHANNEL SIDE SLOPE, Z = 3.0
HYDRAULIC RADIUS, R = 0.0444
WETTED PERIMETER, P = 0.60
X-SECTION AREA = 0.03
TOP WIDTH OF CHANNEL, T = 2.37
TOTAL DEPTH OF CHANNEL, D = 0.38
CHANNEL SHAPE - TRAPEZOIDAL
CHANNEL SLOPE = 2.00
VELOCITY = 0.8
DEPTH OF FLOW, d = 0.08
BOTTOM WIDTH, b = 0.10
WIDTH OF STREAM, t = 0.57
FREEBOARD = 0.30