2010-11-19_PERMIT FILE - C1980007 ‎(19)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 11/19/2010
• Doc Name: 100 yr - 24 hr
• Section_Exhibit Name: Exhibit 66 SG-1 Pond
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Culvert Inputs:
Max. Entrance
Tailwater
Length (ft) Slope ( %) Manning's n Headwater
(ft)
(ft) Loss Coef.
) (Ke)
214.00 5.00 0.0240 14.95 0.00 0.90
Culvert Results:
Design Discharge = 170.94 cfs
Minimum pipe diameter: 1 - 45 inch pipe(s) required
Structure #54 6TA1 0p Channel
DCW -6A
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Mult. x
Ratio Ratio
Depth (ft) % of Depth (VxD)
2.0:1 2.0:1 15.0
0.30
Riprap Channel Results:
•
PADER Method - Steep Slope Design
Structure #53 (Erodible Channe /�
DCW -6B
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Filename: Sylvester Gulch_09292010.sc4
Printed 10 -06 -2010
w/o Freeboard w/ Freeboard
Design Discharge:
21.56 cfs
Depth:
1.17 ft 1.47 ft
Top Width:
4.70 ft 5.90 ft
Velocity:
7.82 fps
X- Section Area:
2.76 sq ft
Hydraulic Radius:
0.525 ft
Froude Number:
1.80
Manning's n:
0.0480
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
Structure #53 (Erodible Channe /�
DCW -6B
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Filename: Sylvester Gulch_09292010.sc4
Printed 10 -06 -2010