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<br />PIPE CULVERT ANALYSIS <br />COMPUTATION OF CULVERT PERFORMANCE CURVE <br />October 2, 1989 <br />• <br />• <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) ........ .......................... 120.0 <br />Culvert Slope (feet per foot) ........................... 0.0902 <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 />6.9 1.00 1.25 -8.98 0.54 0.87 0.54 8.77 <br />-------------------------------------------------------------------- <br />-------------------------------------------------------------------- <br />PIPE CULVERT ANALYSIS ~LhPUTER PROGRAM Version 1.5 Copyright (c)1986 <br />Dodson 8 Associates, Inc., 7015 W. Tidwell, #107, Houston, TX 77092 <br />(713) 895-8322. All Rights Reserved. <br />12-2-57 <br />