2009-03-02_PERMIT FILE - C1980004 ‎(15)‎

• Permit No: C1980004A
• IBM Index Class Name: Permit File
• Doc Date: 3/2/2009
• Section_Exhibit Name: Appendix M Hydrologic Calculations
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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Structure Detai/;
Structure #3S (Riprap Channel)
DITCH 7-1
Triangular Riprap Channel Inputs:
Material• Riprap
Left Right
Sideslope Sideslope Slope (%) Freeboard
Freeboard Freeboard
Ratio' Ratio Depth (ft) %`of Depth Mult. x
(VxD)
1.5:1 1.5:1 33.0 1.00
Riprap Channel Results:

V
Simons/OSM Method -Steep Slope Design
w/o Freeboard. w/freeboard _
_
Design Discharge: 16.13 cfs _
~P~~ 0.15ft 1.15ft
Top Width: 0.45 ft 3.45 ft
Velocity*:
X-Section Area: 0.03 sq ft
Hydraulic Radius: 0.062 ft
Froude Number*:
Manning's n*:
Dmin: 11.00 in
D50: 33.00 in
Dmax: 41.25 in
elocity and Manning's n calculations may not apply for this method
Filename: SEDIMENT POND_100.sc4 Printed 05-16-2008
TR-16 61 05/08