2008-12-11_PERMIT FILE - C1980007A ‎(33)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Doc Name: 100 Year, 24 Hour Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 SG-1 Pond
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
49
•
Structure #55 (Cu/vert?
CSL Y-18
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
214.00 5.00 0.0240 14.95 0.00 0.9c

Elevation
(ft)

Perf. Riser (cfs)
Emergency
Spillway (cfs
) Combined
Total

Discharge
(cfs)
6,774.00 0.872 0.000 0.872
6,774.50 0.922 1.839 2.762
6,774.53 0.925 1.839 2.764
6,774.63 0.935 10.031 10.966
6,774.73 0.944 12.985 13.929
6,774.83 0.953 17.092 18.046
6,774.93 0.963 21.174 22.137
6,775.00 0.969 26.131 27.100
0 Design Discharge = 170.99 cfs
Minimum pipe diameter: 1 - 45 inch pipe(s) required
Structure #54 (Rlprap Chanel
DCW-6A
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%) Mult
x
Ratio Ratio .
Depth (ft) % of Depth (VxD)
2.0:1 2.0:1 15.0 0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
•
w/o Freeboard w/ Freeboard
Design Discharge: 21.56 cfs
Depth: 1.17 ft 1.47 ft
Top Width: 4.70 ft 5.90 ft
Velocity: 7.82 fps
X-Section Area: 2.76 scl ft
Filename: SG-1.sc4 Printed 10-28-2008