2010-11-19_PERMIT FILE - C1980007 ‎(18)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 11/19/2010
• Doc Name: 25 yr - 24 hr
• Section_Exhibit Name: Exhibit 66 SG-1 Pond
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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46
Structure Detail;
Structure #94 (Erodible Channel
DSL Y -1 Q
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)
1.5:1 1.5:1 8.0 0.0300
0.30
4.0
Erodible Channel Results:
•
Structure #92 (Erodible Channel)
DSL Y -1 N
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
2.21 ds
Depth:
0.53 ft 0.83 ft
Top Width:
1.60 ft 2.50 ft
Velocity:
5.16 fps
X- Section Area:
0.43 sq ft
Hydraulic Radius:
0.222 ft
Froude Number:
1.76
Structure #92 (Erodible Channel)
DSL Y -1 N
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)
1.5:1 1.5:1 4.0 0.0300
0.30
4.0
Erodible Channel Results:
•
Filename: Sylvester Gulch_09292010.sc4
Printed 10 -06 -2010
w/o Freeboard w/ Freeboard
Design Discharge:
0.63 cfs
Depth:
0.38 ft 0.68 ft
Top Width:
1.14 ft 2.04 ft
Velocity:
2.90 fps
X- Section Area:
0.22 sq ft
Hydraulic Radius:
0.158 ft
Filename: Sylvester Gulch_09292010.sc4
Printed 10 -06 -2010