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 #24 (RipraA Channel
DITCH 11-1
Trapezoidal Riprap Channel Inputs:
Material: Riprap,
Left Ri ht
Bottom 9 Freeboard
Freeboard Freeboard
~~ (ft) Sideslope Sideslope Slope (%) Mult
x
Ratio Ratio .
Depth (fE) % of Depth
(VxD)
3.00 1.5:1 1.5:1 4.5 1.00
Riprap Channel Results:

•
Simons/OSM Method -Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
w/o Freeli~oard w/ ,Freeboard
_. ._
Design Discharge: 31.17 cfs
Dept: 0.60 ft 1.60 ft
Top Width: 4.79 ft 7.79 ft
Velocity*:
X-Section Area: 2.32 sq ft
Hydraulic Radius: 0.451 ft
Froude Number*:
Manning's n*:
Dmin: 4.00 in
D50: 12.00 in
Dmax: 15.00 in
Filename: SEDIMENT POND_100.sc4 Printed 05-16-2008
TR-16 66 05/08