PERMFILE70936

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 9/10/2004
• Section_Exhibit Name: Exhibit 08t 18 Right Ventilation Shaft Ditch & Culvert Design & SAE Demonstration
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Structure Detai/;
Structure #1 (Erodib/e Channel)
Road Drainage Ditch 4
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)
3.0:1 3.0:1 8.0 0.0300 1.00 3.8
Erodible Channel Results:
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w/o Freeboard w/ Freeboard
Design Discharge: 0.89 ffs
Depth: 0.28 ft 1.28 ft
Top Width: 1.70 ft 7.70 R
Velocity: 3.69 fps
X-Section Area: 0.24 sq R
Hydraulic Radius: 0.134
Froude Number: 1.73
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
50.00 15.00 0.0150 1.00 2.00 0.90
Structure #Z (Cu/vertl
Culvert 4
Culvert Inputs:
Culvert Results:
Design Discharge = 0.89 cfs
Minimum pipe diameter: 1 - 8 inch pipe(s) required
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Filename: Road Ditch 4 and Culvert 4.sc4 Printed 04-20-2004