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 #19 (Riprap Channel
R-9 2
Trapezoidal Riprap Channel Inputs:
Material:. Riprap
Left Right
Bottom Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (°~)
Width (ft)
Mult. x
Ratio Ratio. Depth (ft) % of Depth
~D)
3.00 2.0:1 2.0:1 4.0 0.30
Riprap Channel Results:
PADER Method -Steep Slope Design
r

w/o Freeboard w/ Freeboard
Design Discharge: 28.67 cfs
Depth: 0.98 ft 1.28 ft
Top Width: 6.91 ft 8.11 ft
Velocity: 5.92 fps
X-Section Area: 4.84 sq ft
Hydraulic Radius: 0.657 ft
Froude Number: 1.25
Manning's n: 0.0380
Dmin: 2.00 in
DSO: 3.00 in
Dmax: 4.50 in
Filename: 100-Year ReGaimed.sc4 Printed 05-19-2008
TR-16 104 05/08