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 #33 (Riprap Chann%~
DITCH 11 2
Trapezoidal Riprap Channel Inputs:
Material: Riprap
- Left Ri ht
Bottom g
Sideslope Sideslope Slope (%)
Wid Freeboard
Freeboard Freeboard
th (ft)
Ratio' Ratio Mult. x
Depth (ft) % of-Depth
~)
3.00 1.5:1 1.5:1 5.0 1.00
Riprap Channel Results:

Simons/OSM Method -Steep Slope Design
'w/o.Ereeboard w/ Freeboard_::-
Design Discharge: 34.23 cfs
Depth: 0.63 ft 1.63 ft
Top Width: 4.89 ft 7.89 ft
Velocity*:
X-Section Area: 2.48 sU ft
Hydraulic Radius: 0.471 ft
Froude Number*:
Manning's n*:
Dmin: 5.00 in
D50: 15.00 in
Dmax: 18.75 in
~loaty and Manning's n calculations may not apply for this method
Filename: SEDIMENT POND_100.sc4 Printed 05-16-2008
TR-16 67 05/08