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
!`n.~.ninh} ~OOA _7!1(17 D~mule I Crlnvah
~~
Structure Detai/;
Structure #17 (Riprap Channel
DITCH 6
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Ri ht
Bottom g Freeboard
Freeboard Freeboard
Widl~ (~~ Sideslope Sideslope Slope ("/o)
' Mult. x
Ratio.
. Ratio ~p~ (ft) . % of De th
P NX~)
1.00 1.5:1 1.5:1 5.0 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o Freeboard w/ Freeboard,-
Design Discharge: 6.80 cfs
Depth: ~ 0.37 ft 1.37 ft
Top Width: 2.12 ft 5.12 ft
Velocty*:
X-Section Area: 0.58 sq ft
Hydraulic Radius: 0.247 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 32 05/08