PERMFILE104232

• Permit No: C1982057
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: GENERIC CULVERT CALCULATIONS FOR LIGHT-USE ROADS
• Section_Exhibit Name: TAB 13 ATTACHMENT 13-9
• Media Type: D
• Archive: No

TABLE 13-9-3
PIPE CULVERT ANALYSIS
COMPUTATION OF CULVERT PERFORMANCE CURVE
July 30, 1990
PROGRAM INPUT DATA:
DESCRIPTION VALUE
Culvert Diameter (feet> ................................. 3.00
FHWA Chart Number (1,2 or 3) ............................ 2
Scale Number on Chart (Type of Culvert Entrance)........ 3
Manning`s Roughness Coefficient (n-value) ............... 0.0290
Entrance Loss Coefficient of Culvert Opening............ 0.50
Culvert Length (feet) ................................... 60.0
Culvert Slope (feet per foot) ........................... 0.0500
~ PROGRAM RESULTS:
Flow Tailwater Headwater (ft) Normal Critical Depth at
Rate Depth Inlet Outlet Depth Depth Outlet
{cfs> (ft) Control Control (ft) (ft) (ft)
30.0 2.00 2.90 0._2 1.29 1.77 1.29
35.0 3.00 3.24 1.13 1.38 1.92 1.38
40.0 3.00 3.59 1.98 1.99 2.06 1.99
95.0 3.00 9.02 1.87 1.60 2.19 1.60
97.0 3.00 9.18 2.09 1.69 2.23 1.64
50.0 3.00 4.38 2.31 1.71 2.30 1.71
52.0 3.00 9.61 2.50 1.75 2.39 1.75
55.0 3.00 9.96 2.79 1.81 2.91 1.81
58.0 3.00 5.34 3.11 1.88 2.96 1.88
60.0 3.00 5.60 3.32 1.93 2.50 1.93
Outlet
Velocity
{fps)
10.33
11.01
11.39
11.71
11.87
12.09
12.16
12.33
12.91
12.51
- -- ---- --------------------------------------------------------
PIPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.5 Copyright (c)1986
Dodson 6 Associates, Inc., 7015 w. Tidwell, #107, Houston, TX 77092
[phone]. All Rights Reserved.

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