2008-12-11_PERMIT FILE - C1980007A ‎(32)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Doc Name: 25 Year, 24 Hour Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 SG-1 Pond
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
46
Culvert Inputs:

Culvert Results:
Max. Entrance
Tailwater
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
116.00 5.00 0.0240 3.75 0.00 0.90
Design Discharge = 17.59 cfs
Minimum pipe diameter: 1 - 21 inch pipe(s) required
Structure #57 (R/"rap Channel)
DSG-1A
Trapezoidal Riprap Channel Inputs:
Material: Riprag
•
•
Left Right Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope (%)
Width (ft) Depth (ft) % of Depth Mult. x
Ratio Ratio (VxD)
2.00 2.0:1 2.0:1 5.0 0.30
.e
Riprap Channel Results:
PADER Method - Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 17.59 cfs
Depth: 0.84 ft 1.14 ft
Top Width: 5.37 ft 6.57 ft
Velocity: 5.66 fps
X-Section Area: 3.11 sq ft
Hydraulic Radius: 0.539 ft
Froude Number: 1.31
Manning's n: 0.0390
Dmin: 2.00 in
D50: 3.00 in
Dmax: 4.50 in
Structure #56 (Pond)
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%
Filename: SG-1.sc4 Printed 10-28-2008