2017-02-03_PERMIT FILE - C1980004 ‎(18)‎

• Permit No: C1980004
• IBM Index Class Name: Permit File
• Doc Date: 2/3/2017
• Section_Exhibit Name: Appendix M Hydrologic Calculations
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Structure Detail;
Structure #32 (Erodible Channel
DITCH 10-2
Trapezoidal Erodible Channel Inputs:
Material: Shales and hardpans
Bottom Left Right
Width (ft) Sid eslope Sideslope Slope (%) Manning's n
Freeboard Freeboard Freeboard
limiting
Velocity
Ratio Ratio
Mult. x
Depth (ft) %of Depth (VxD)
(fps)
3.00 1.5:1 1.5:1 4.2 0.0250
1.00
6.0
Erodible Channel Results:
Filename: SEDIMENT POND_10.sc4 Printed 05-16-2008
TR -16 36 05/08
w/o Freeboard w/:Freeboard
.......... .
Design Discharge:
8.13 cfs
Depth:
0.39 ft 1.39 ft
Top Width:
4.18 ft 7.18 ft
Velocity:
5.72 fps
X -Section Area:
1.42 sq ft
Hydraulic Radius:
0.321 ft
Froude Number:
1.73
Filename: SEDIMENT POND_10.sc4 Printed 05-16-2008
TR -16 36 05/08