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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70
CSL Y -Z8
• Culvert Inputs:
Max. Entrance
Tailwater
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
48.00 5.00 0.0240 10.50 0.00 0.90
Culvert Results:
Design Discharge = 327.27 cfs
Minimum pipe diameter: 1 - 72 inch pipe(s) required
Structure #31 (Erodible Channe /�
DSL Y -20
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD)
(fps)
1.0:1 3.0:1 10.3 0.0300
0.30
5.5
r
U
Erodible Channel Results:
Structure #30 (Cu /vertu
CSL Y -28
Culvert Inputs:
Max. Entrance
Tailwater
Length (ft) Slope ( %) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
34.00 5.00 0.0240 2.25 0.00 0.90
Culvert Results:
•
Design Discharge = 5.51 cfs
Filename: Sylvester Gulch_09292010.sc4
Printed 10 -06 -2010
w/o Freeboard w/ Freeboard
Design Discharge:
5.51 cfs
Depth:
0.63 ft 0.93 ft
Top Width:
2.53 ft 3.73 ft
Velocity:
6.87 fps
X- Section Area:
0.80 sq ft
Hydraulic Radius:
0.283 ft
Froude Number:
2.15
Structure #30 (Cu /vertu
CSL Y -28
Culvert Inputs:
Max. Entrance
Tailwater
Length (ft) Slope ( %) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
34.00 5.00 0.0240 2.25 0.00 0.90
Culvert Results:
•
Design Discharge = 5.51 cfs
Filename: Sylvester Gulch_09292010.sc4
Printed 10 -06 -2010