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
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
116.00 5.00 0.0240 3.75 0.00 0.9(
Design Discharge = 22.74 cfs
Minimum pipe diameter: I - 24 inch pipe(s) required
Structure #57 (Riprap Chanel)
DSG-1A
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom Freeboard Freeboard Freeboard
Sideslo a Sideslo a Slope
Width (ft) p p (%)
Depth (ft) % of Depth Mult. x
Ratio Ratio (VXD)
2.00 2.0:1 2.0:1 5.0 0.30
Riprap Channel Results:

•
PADER Method - Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 22.74 cfs
Depth: 0.95 ft 1.25 ft
Top Width: 5.78 ft 6.98 ft
Velocity: 6.17 fps
X-Section Area: 3.68 sq ft
Hydraulic Radius: 0.591 ft
Froude Number: 1.36
Manning's n: 0.0380
Dmin: 2.00 in
D50: 3.00 in
Dmax: 4.50 in
Structure #56 LPond)
SG-1
Pond Inputs:
Initial Pool Elev: 6,768.00 ft
Initial Pool: 0.41 ac-ft
*Sediment Storage: 0.02 ac-ft
Dead Space: 0.00%
46
Filename: SG-1.sc4
Printed 10-28-2008