PERMFILE133500

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: LIGHT USE ROADS GENERIC CULVERT DESIGNS
• Section_Exhibit Name: TAB 13 ATTACHMENT 13-9
• Media Type: D
• Archive: No

PIPE CULVERT ANALYSIS
COMPUTATION OF CULVERT PERFORMANCE CURVE
August 31, 1994
GENERIC CULVERT DESIGN
LIGHT USE ROADS
•
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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) ............... 0.0240
Entrance Lass Coefficient of Culvert Opening............ 0.50
Culvert Lenqth (feet) ................................... 60.0
Culvert Slope (feet per foot) ........................... 0.0500
PROGRAM RESULTS:
Flow Tailwater Headwater (ft) Normal Critical Depth at Outlet
Rate Depth Inlet Outlet Depth Depth Outlet Velocity
(cfs) (ft) Control Control (ft) (ft) (ft) (fps)
-----------
30.0 ---------
2.00 --------
2.90 --------
0.22 -------
1.29 ----------
1.77 --------
1.29 -------
10.33
35.0 3.00 3.24 1.13 1.38 1.92 1.38 11.01
40.0 3.00 3.59 1.48 1.49 2.06 1.49 11.39
45.0 3.00 4.02 1.87 1.60 2.19 1.60 11.71
50.0 3.00 4.38 2.31 1.71 2.30 1.71 12.04
52.0 3.00 4.61 2.50 1.75 2.34 1.75 12.16
55.0 3.00 4.96 2.79 1.81 2.41 1.81 12.33
58.0 3.00 5.34 3.11 1.88 2.46 1.88 12.41
60.0 3.00 5.60 3,32 1.93 2.50 1.93 12.51
PIPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.7 Copyright (c)1986
Dodson & Associates, Inc., 7015 W. Tidwell, x`107, Houston, TX 77092
[phone]. All Rights Reserved.