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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71
Structure #54 (Culvert
Culvert SC -21
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
80.00 2.00 0.0150 2.00 0.00 0.9
Culvert Results:
Design Discharge = 8.89 cfs
Minimum pipe diameter: 1 - 21 inch pipe(s) required
Structure #55 (R/prap Channel
Ditch RD -D2A
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
8.89 cfs
Depth:
0.54 ft 0.84 ft
Top Width:
5.25 ft 7.05 ft
Velocity:
4.52 fps
X- Section Area:
1.97 sci ft
Hydraulic Radius:
0.362 ft
Froude Number:
1.30
Manning's n:
0.0410
Dmin:
2.00 in
D50:
3.00 in
Dmax:
4.50 in
Structure #54 (Culvert
Culvert SC -21
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
80.00 2.00 0.0150 2.00 0.00 0.9
Culvert Results:
Design Discharge = 8.89 cfs
Minimum pipe diameter: 1 - 21 inch pipe(s) required
Structure #55 (R/prap Channel
Ditch RD -D2A
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
I Freeboard
Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (ft) Ratio Ratio
Mult. x
Depth (ft) % of Depth
(VxD)
2.00 3.0:1 3.0:1 5.0
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 9.59 cfs
Filename: Lower Sump 1 0yr ver2.sc4 Printed 04 -06 -2012