2010-11-19_PERMIT FILE - C1980007 ‎(22)‎

• 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 Pond MB-3
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
(`nnvrinhl loop _9nn7 D-1 I Cnh --k
15
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
17.90 5.00 0.0240 1.50 0.00 0.91
Design Discharge = 6.00 cfs
Minimum pipe diameter: 1 - 21 inch pipe(s) required
Structure #15 (Erodible Channel)
D3 -2B
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)
2.0:1 2.0:1 6.0 0.0300
0.30
5.5
•
Erodible Channel Results:
Structure #14 (Erodib /e Channel
D3 -2
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
6.10 cfs
Depth:
0.73 ft 1.03 ft
Top Width:
2.91 ft 4.11 ft
Velocity:
5.76 fps
X- Section Area:
1.06 sq ft
Hydraulic Radius:
0.326 ft
Froude Number:
1.68
Structure #14 (Erodib /e Channel
D3 -2
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)
3.0:1 3.0:1 6.0 0.0300
0.30
1 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 8.41 cfs
Depth: 0.69 ft 0.99 ft
Filename: MB -3.sc4 Printed 09 -30 -2010