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 #20 (Riprap Chann%~
DITCH 7-2
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom Freeboard
Freeboard Freeboard
Width (ft) ;Sideslope Sideslope Slope ("/o) Mult. x
Ratio Ratio Depth {ft) . % of. Depth (~)
3.00 2.0:1 2.0:1 4.0 1.00
Riprap Channel Results:
~1~1
~J
~:
Simons/OSM Method -Steep Slope Design
_.
w/o Freeboard: w/.:Freeboard
Design Discharge: 27.64 cfs
Depth: 0.56 ft 1.56 ft
Top Width: 5.23 ft 9.23 ft
Velocty*:
X-Section Area: 2.30 sq ft
Hydraulic Radius: 0.418 ft
Froude Number*:
Manning's n*:
Dmin: 4.00 in
D50: 12.00 in
Dmax: 15.00 in
Velocity and Manning's n calculations may not apply for this method.
Filename: SEDIMENT POND_100.sc4 Printed 05-16-2008
TR-16 62 05/08