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<br />PIPE CULVERT ANALYSIS <br />COMPUTATION OF CULVERT PERFORMANCE CURVE <br />August 30, 1994 <br />GENERIC CULVERT DESIGN <br />LIGHT USE ROADS <br /> <br />PROGRAM INPUT DATA: <br />DESCRIPTION VALUE <br />Culvert Diameter (feet) ..... ........................... 2.00 <br />FHWA Chart Number (1,2 or 3) ............................ 2 <br />Scale Number on Chart (Type of Culvert Entrance)........ 3 <br />Manning`s Roughness Coefficient (n-value) ............... 0.0240 <br />Entrance Loss Coefficient of Culvert Opening............ 0.50 <br />Culvert Length (feet) ................................... 60.0 <br />Culvert Slope (feet per foot) ........................... 0.0500 <br />PROGRAM RESULTS: <br />Flow Tailwater Headwater (ft) Normal Critical Depth at Outlet <br />• Rate Depth Inlet Outlet Depth Depth Outlet Velocity <br />(cfs) (ft) Control Control (ft) (ft) (ft) (fps) <br />-------------------------------------------------------------------- <br />5.0 1.00 1.16 -1.45 0.58 0.79 0.58 6.64 <br />7.0 1.00 1.43 -1.22 0.69 0.94 0.69 7.31 <br />10.0 1.00 1.82 -0.80 0.83 1.13 0.83 8.09 <br />12.0 1.50 2.07 -0.47 0.93 1.24 0.93 8.41 <br />15.0 2.00 2.45 0.43 1.06 1.40 1.06 8.92 <br />17.0 2.00 2.78 0.83 1.13 1.49 1.13 9.26 <br />20.0 2.00 3.32 1.53 1.27 1.61 1.27 9.52 <br />25.0 2.00 4.58 2.96 1.75 1.76 1.75 8.58 <br />PIPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.7 Copyright (c)1986 <br />Dodson & Associates, Inc., 7015 W. Tidwell, #107, Houston, TX 77092 <br />(713) 895-8322. All Rights Reserved. <br />\J <br />