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
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•
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's n Mult. x Velocity
Ratio Ratio Depth (ft) % of Depth (VxD) (fps)
1.0:1 3.0:1 2.4 0.03001 0.30 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 0.49 cfs
Depth: 0.34 ft 0.64 ft
Top Width: 1.35 ft 2.55 ft
Velocity: 2.18 fps
X-Section Area: 0.23 scl ft
Hydraulic Radius: 0.151 ft
Froude Number: 0.94

Structure #69 (Culvert)
CSL Y-Z4
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
64.00 5.00 0.0240 2.25 0.00 0.9(
Design Discharge = 0.49 cfs
Minimum pipe diameter: 1 - 6 inch pipe(s) required
Structure #68 (Riprap Channel)
DSL )1-17
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Bottom
Sideslope Sideslope Slope
( %) Mult. x
Width (ft)
Ratio Ratio Depth O ft % of Depth
(VxD)
4.00 2.0:1 2.0:1 8.4 0.30
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 35.85 cfs
Depth: 0.57 ft 0.87 ft
41
Filename: SG-1.sc4 Printed 10-28-2008