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<br />• <br />PIPE CULVERT ANALYSIS <br />COMPUTATION OF CULVERT PERFORMANCE CURVE <br />October 30, 1990 <br />PROGRAM INPUT DATA: <br />DESCRIPTION HRC-A1 VALUE <br />Culvert Diameter (feet) .................................' 6.00 <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) ............... 0.0290 <br />Entrance Loss Coefficient of Culvert Opening............ 0.50 <br />Culvert Length (feet) ................................... 143.0 <br />Culvert Slope (feet per foot) ........................... 0.1500 <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 />65.2 2.00 3.06 -17.13 1.10 2.15 1.10 18.36 <br />-------------------------------------------------------------------- <br />-------------------------------------------------------------------- <br />PZPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.5 Copyright (c)1986 <br />Dodson & Associates, Inc., 7015 W. Tidwell, #107, Houston, TX 77092 <br />(713) 695-8322. All Rights Reserved. <br />• <br />