2001-12-11_PERMIT FILE - C1996084 ‎(2)‎

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 15-25 MINE AREA P7 SEDIMENT CONTROL POND 7-3
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
Copyright 1998 Pamela J. Schwab
Civil Software Design
•
Structure #3 (Erodible Channel1
D7-3b
Structure Detai/;
Triangular Erodible Channel Inputs:
Material: Graded loam to cobbles when noncolloidal
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's n Mult
x Velocity
Ratio Ratio .
Depth (k) % of Depth (VxD) (fps)
2.5:1 2.5:1 1.6 0.0300 0.30 5.0
Erodible Channel Results:
•
w/o Freeboard
Design Discharge: 6.00 tfis
Depth: 0.84 k
Top Width: 4.22 ft
Velocty: 3.37 fps `~
X-SeRion Area: 1.78 sq R
Hydraulic Radius: 0.392
Froude Number: 0.91
Structure #1 Erodible Channel)
07-3d
D7-3d
Trapezoidal Erodible Channel Inputs:
Material: Graded loam to cobbles when noncolloidal
Bottom LeR Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's n
Width (ft) Mult. x Velocity
Ratio Ratio Depth (ft) % of Depth (VxD) (fps)
6.00 3.0:1 3.0:1 1.5 0.0300 0.30 5.0
Erodible Channel Results:
•

w/o Freeboard w/ Freeboard
Design Discharge: 75.49
Depth: 1.3Z k 1.62 R
Top Width: 13.92 k 15.72 ft
Velocity: 5.74 fps
Filename: 100pond7-3.sc4 Printed 04-24-2001