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
r,,.,,m„tir ~ oau _~rn~ o~,.,vi~ i c~ti..nti
~~
Structure Detai/;
Structure #41 (Riprap Chann%~
DITCH 7-3
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Ri ht
Bottom g Freeboard
Freeboard Freeboard
Sideslope Sideslope. Slope (/o
Width (ft) °
Ratio. Ratio Depth (ft) % of Depth (yxD) .
3.00 1.5:1 1.5:1 10.0 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o. Freeboard: w/..Freeboard
Design Discharge: 3.71 cfs
Depth: 0.15 ft 1.15 ft
Top Width: 3.45 ft 6.45 ft
Velocity*:
X-Section Area: 0.49 s4 ft
Hydraulic Radius: 0.138 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 33 05/08