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 Detai/;
Structure #2S (Riprap Channel
DITCH 12
Trapezoidal Riprap Channel Inputs:
Material: Riprap
left Ri ht
Bottom g Freeboard
Freeboard Freeboard
Sideslope Sideslope Slope (%)
Width (ft)
Mult. x
Ratio Ratio Depth (ft) % of Depth .
(VxD)
3.00 1.5:1 1.5:1 22.5 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o Freeboard. w/ Freeboard
Design Discharge: 1.23 cfs
Depth: 0.05 ft 1.05 ft
Top Width: 3.15 ft 6.15 ft
Velocity*:
X-Section Area: 0.15 sq ft
Hydraulic Radius: 0.048 ft
Froude Number*:
Manning's n*:
Dmin: 3.00 in
D50: 9.00 in
Dmax: 11.25 in
Velocity and Manning's n calculations may not apply for this method.
Filename: SEDIMENT POND_10.sc4 Printed 05-16-2008
TR-16 37 05/08