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<br />PIPE CULVERT ANALYSIS <br />COMPUTATION aF CULVERT PERFORMANCE CURVE <br />October 2, 1989 <br />PROGRAM INPUT DATA: <br />DESCRIPTION VALUE <br />Culvert Diameter (feet) ..... ........................... 2.50 <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) ................................... 80.0 <br />Culvert Slope (feet per foot) ........................... 0.0525 <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 />7.1 2.00 1.28 -2.07 0.63 0.88 0.63 7.30 <br />-------------------------------------------------------------------- <br />-------------------------------------------------------------------- <br />PIPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.5 Copyright (c)1986 <br />Dodson & Associates, Inc., 7015 W. Tidwell, >F107, Houston, TX 77092 <br />(713) 895-8322. All Rights Reserved. <br />• <br />12-2-62 <br />