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
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16
Structure #11 (Erodible Channel
D3 -IA
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
w/o Freeboard w/ Freeboard
Top Width:
4.17 ft 5.97 ft
Velocity:
5.80 fps
X- Section Area:
1.45 sq ft
Hydraulic Radius:
0.330 ft
Froude Number:
1.74
Structure #11 (Erodible Channel
D3 -IA
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 3.0 0.0300
0.30
4.0
Erodible Channel Results:
Structure #23 (Culvert
C3 -1E
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
25.00 5.00 0.0240 2.00 0.00 0.90
Design Discharge = 8.41 cfs
Minimum pipe diameter: 1 - 18 inch pipe(s) required
Structure #12 (Culvert
• C-
Filename: MB -3.sc4 Printed 09 -30 -2010
. ` .
w/o Freeboard w/ Freeboard
Design Discharge:
8.41 cfs
Depth:
0.94 ft 1.24 ft
Top Width:
3.74 ft 4.94 ft
Velocity:
4.81 fps
X- Section Area:
1.75 sq ft
Hydraulic Radius:
0.418 ft
Froude Number:
1.24
Structure #23 (Culvert
C3 -1E
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
25.00 5.00 0.0240 2.00 0.00 0.90
Design Discharge = 8.41 cfs
Minimum pipe diameter: 1 - 18 inch pipe(s) required
Structure #12 (Culvert
• C-
Filename: MB -3.sc4 Printed 09 -30 -2010
. ` .