2012-06-08_PERMIT FILE - C2009087 ‎(12)‎

• Permit No: C2009087
• IBM Index Class Name: Permit File
• Doc Date: 6/8/2012
• Doc Name: Lower Sump Design 10yr/24hr Storm Event
• Section_Exhibit Name: Exhibit 2.05.3-E2 Appendix 2.05.3-E2.E Addendument 2.05.3-E2.E-1
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Structure #34 (Erodible Channel
Ditch CH -1
Triangular Erodible Channel Inputs:
Material: Graded loam to cobbles when noncolloidal
Left Right I Freeboard Freeboard Freeboard
w/o Freeboard w/ Freeboard
Depth:
0.54 ft 0.84 ft
Top Width:
3.24 ft 5.04 ft
Velocity:
2.00 fps
X- Section Area:
0.88 sq ft
Hydraulic Radius:
0.256 ft
Froude Number:
0.68
Structure #34 (Erodible Channel
Ditch CH -1
Triangular Erodible Channel Inputs:
Material: Graded loam to cobbles when noncolloidal
Left Right I Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Manning's n I ult.
M x
ult.
Velocity
Ratio Ratio Depth (ft) % of Depth
(fps)
3.0:1 3.0:1 1.0 0.0300 0.30 5.0
Erodible Channel Results:
Structure #35 (Culvert
Culvert SC -11
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
100.00 1.00 0.0150 1.00 0.00 0.90
Design Discharge = 2.81 cfs
44
Filename: Lower Sump 1 0yr ver2.sc4 Printed 04 -06 -2012
w/o Freeboard w/ Freeboard
Design Discharge:
2.81 cfs
Depth:
0.64 ft 0.94 ft
Top Width:
3.87 ft 5.67 ft
Velocity:
2.25 fps
X- Section Area:
1.25 sq ft
Hydraulic Radius:
0.306 ft
Froude Number:
0.70
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
100.00 1.00 0.0150 1.00 0.00 0.90
Design Discharge = 2.81 cfs
44
Filename: Lower Sump 1 0yr ver2.sc4 Printed 04 -06 -2012