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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•
Structure #50 (Erodible Channel)
DSL Y -11
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
w/o Freeboard w/ Freeboard
Top Width:
1.70 ft 2.90 ft
Velocity:
2.38 fps
X- Section Area:
0.36 sq ft
Hydraulic Radius:
0.190 ft
Froude Number:
0.91
Structure #50 (Erodible Channel)
DSL Y -11
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 4.4 0.0300
0.30
1 5.5
Erodible Channel Results:
•
Structure #49 (Cu /vertu
CSL Y -17
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater () ft Loss Coef.
(ft) (Ke)
42.00 5.00 0.0240 3.75 0.00 0.9(
Culvert Results:
Design Discharge = 3.61 cfs
Minimum pipe diameter: 1 - 12 inch pipe(s) required
• Structure #46 ffirodib /e Chann %�
Filename: Sylvester Gulch_09292010.sc4 Printed 10 -06 -2010
w/o Freeboard w/ Freeboard
Design Discharge:
2.76 cfs
Depth:
0.57 ft 0.87 ft
Top Width:
2.29 ft 3.49 ft
Vel ocity:
4.20 fps
X- Section Area:
0.66 sq ft
Hydraulic Radius:
0.256 ft
Froude Number:
1.38
Structure #49 (Cu /vertu
CSL Y -17
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater () ft Loss Coef.
(ft) (Ke)
42.00 5.00 0.0240 3.75 0.00 0.9(
Culvert Results:
Design Discharge = 3.61 cfs
Minimum pipe diameter: 1 - 12 inch pipe(s) required
• Structure #46 ffirodib /e Chann %�
Filename: Sylvester Gulch_09292010.sc4 Printed 10 -06 -2010