2010-11-19_PERMIT FILE - C1980007 ‎(20)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 11/19/2010
• Doc Name: 10 yr - 24 hr
• Section_Exhibit Name: Exhibit 66 Pond MB-3
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
(`nnvrinhl 1000 Ann7 0 -1 1 Qnk ... 0K
15
•
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater () ft Loss Coef.
(ft) (Ke)
17. 5.00 0.0240 1.50 0.00 0.9(
Design Discharge = 2.86 cfs
Minimum pipe diameter: 1 - 12 inch pipe(s) required
Structure #15 (Erodib le 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 (Erodible Channe /�
D32
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
2.92 cfs
Depth:
0.55 ft 0.85 ft
Top Width:
2.21 ft 3.41 ft
Velocity:
4.79 fps
X- Section Area:
0.61 sq ft
Hydraulic Radius:
0.247 ft
Froude Number:
1.61
Structure #14 (Erodible Channe /�
D32
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
is Design Discharge: 4.19 cfs
Depth: 0.54 ft 0.84 ft
Filename: MB -3.sc4 Printed 09 -30 -2010