2001-12-11_PERMIT FILE - C1996084 ‎(10)‎

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: Exhibit 15-16 Mine Area P2 SEDIMENT CONTROL POND 2-2
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
Copyright 1998 Pamela J. Schwab
Civil Software Design
L
Structure #S (Riprdp Channel)
S-S
Structure Detai/;
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%) Mult. x
Ratio Ratio Depth (R) % of Depth (VxD)
3.0:1 3.0:1 17.8 0.30
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
•
w/o Freeboard w/ Freeboard
Design Discharge: 3.94 cfs
Depth: 0.15 R 0.45 ft
Top Width: 0.88 R 2.68 R
Velocity:
X-Section Area: 0.06 sq R
Hydraulic Radius: 0.069
Froude Numbers:
Manning'' ns:
Dmin: 5.00 in
DSO: 15.00 in
Dmax: 18.75 in
Velocity and Manning'' n calculatlons may not apply for this method.
Structure #7 Erodi / Cha el
Ditch i(W)) Pond 1-1 ar a
Triangular Er~ible C nel Inputs:
Material: Cobbles and shingles
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning'' n Mult. x Velocity
Ratio Ratio Depth (R) % of Depth (VxD) (fPs)
2.5:1 2.5:1 1.2 0.03'0 0.30 5.0
Erodible Channel Results:
Filename: Ditches Pond 2-1&2 west.sc4 Printed 04-19-2001