2011-11-28_PERMIT FILE - C1992081A ‎(7)‎

• Permit No: C1992081A
• IBM Index Class Name: Permit File
• Doc Date: 11/28/2011
• Doc Name: Existing Facilities Area Conditions
• Section_Exhibit Name: Tab 12 Attachment 12-1
• Media Type: D
• Archive: Yes

TAHRC -2
PIPE CULVERT ANALYSIS.
COMPUTATION OF CULVERT PERFORMANCE CURVE
April 10, 1990
PROGRAM INPUT DATA:
DESCRIPTION VAL
Culvert Diameter ( feet) .. ............................... 9.00
FHWA Chart Number (1,2 or 3) ............................ 2
Scale Number on Chart (Type of Culvert Entrance)........ S
Manning`s Roughness Coefficient (n- value) ............... 0.02
Entrance Loss Coefficient of Culvert Opening............ 0.10
Culvert Length ( feet) .... ............................... 120.0
Culvert Slope (feet per foot ) ........................... 0.01
PROGRAM RESULTS:
Flow Tailwater Headwater (ft) Normal Critical Depth at Outl
Rate Depth Inlet Outlet Depth Depth Outlet Veloci
(cfs) (ft) Control Control (ft) (ft) (ft) (fp
783.0 5.00 13.24 11.17 6.78 6.92 5.78 15
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PIPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.5 Copyright (c)19
Dodson & Associates, Inc., 7015 W. Tidwell, #107, Houston, TX 770
(713) 895 -8322. All Rights Reserved.