2009-10-06_PERMIT FILE - C1980005 ‎(18)‎

• Permit No: C1980005
• IBM Index Class Name: Permit File
• Doc Date: 10/6/2009
• Doc Name: Culvert Designs
• Section_Exhibit Name: Tab 07 Appendix 7-12 Appendix C
• Media Type: D
• Archive: No

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PIPE CULVERT ANALYSIS
COMPUTATION aF CULVERT PERFORMANCE CURVE
October 2, 1989
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PROC;F2AM INPUT DATA:
DESCRIPTION VALUE
Culvert Diameter (feet).. ...................:....... 2.50
FHWA Chart Number (1,2 or 3). .. .... ....... 2
Scale Number on Chart (Type of Culvert Entrance)........ 3
Manning's Roughness Coefficient (n-value) ............... 0.0240
Entrance Loss Coefficient of Culvert Opening............ 0.50
Culvert Length (feet).. .......................... 80.0
Culvert Slope (feet per~foot) ........................... 0:0525
PROCRAM RESULTS:
Flow Tailwater Headwater (ft) Normal Critical Depth at Outlet
Rate Depth Inlat Outlet Depth Depth Outlet Velocity
(cfs) (ft) Control Control (ft) (ft) (ft) (fps)
7.1 2.00 1.28 -2.07 0.63 0.88 0.63 7.30'
PIPE CULVERT ANALYSIS COh9~UTER PROGRAM version 1.5 Copyright (c)1986
Dodson & Associates, Inc., 7015 W. Tidwell,.#107, Houston, TX 77092
[phone]. A11 Rights Reserved.
~-(2- 3rS