2010-11-19_PERMIT FILE - C1980007 ‎(4)‎

• 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-5E
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Structure #68 (Erodible Channel
D5E - 41
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
Stability Stability
Class D w/o Class D w/
Freeboard Freeboard
Capacity Capacity
Class B w/o Class B w/
Freeboard Freeboard
Velocity:
2.85 fps
1.00 fps
X- Section Area:
0.27 sq ft
0.77 sq ft
Hydraulic Radius:
0.164 ft
0.277 ft
Froude Number:
1.17
0.32
Roughness Coefficient:
0.0735
0.2969
Structure #68 (Erodible Channel
D5E - 41
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 2.0:1 13.2 0.0300
0.30
5.5
Erodible Channel Results:
•
Structure #57 NeOetated Channe /�
D5E -40
Triangular Vegetated Channel Inputs:
Material: Grass mixture
Left Right
Retardance
w/o Freeboard w/ Freeboard
Design Discharge:
1.92 cfs
Depth:
0.46 ft 0.76 ft
Top Width:
1.38 ft 2.28 ft
Velocity:
6.01 fps
X- Section Area:
0.32 sq ft
Hydraulic Radius:
0.192 ft
Froude Number:
2.21
Structure #57 NeOetated Channe /�
D5E -40
Triangular Vegetated Channel Inputs:
Material: Grass mixture
Left Right
Retardance
Freeboard
Freeboard Freeboard
Limiting
9
Sideslope Sideslope Slope ( %) Classes
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD)
(fps)
2.0:1 2.0:1 17.4 D, B
0.30
5.0
. Vegetated Channel Results:
Filename: MB -5E Sediment run.sc4 Printed 10 -01 -2010