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
/`.....,.?..HI 100R _')nn7 De. 1+ 1 Crk...e1.
50
C.
w/o Freeboard w/ Freeboard
Hydraulic Radius: 0.525 ft
Froude Number: 1.80
Manning's n: 0.0480
Dmin: 3.00 in
D50: 6.00 in
Dmax: 9.00 in
Structure #53 (Erodib/e Channel
DCW-65
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 2.0 0.03001 0.30 5.5
Erodible Channel Results:

w/o Freeboard w/ Freeboard
Design Discharge: 32.82 cfs
Depth: 1.68 ft 1.98 ft
Top Width: 6.72 ft 7.92 ft
Velocity: 5.81 fps
X-Section Area: 5.65 scl ft
Hydraulic Radius: 0.752 ft
Froude Number: 1.12
Structure #52 (Cu/vent)
CSL Y-19
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
248.00 5.00 0.0240 3.75 0.00 0.9(
Design Discharge = 31.50 cfs
Minimum pipe diameter: 1 - 30 inch pipe(s) required
Structure #51 [Erodible Channe/)
Filename: SG-1.sc4 Printed 10-28-2008