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<br />TAHHC-6A <br />PIPE CULVERT ANALYSIS <br />COMPUTATION OF CULVERT PERFORMANCE CURVE <br />April 10, 1990 <br /> <br /> <br />PZ~~GRAM I~~=;J? 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) ................................... 80.0 <br />Culvert Slope (feet per foot) ........................... 0.0200 <br />PROGRAM RESULTS: <br />Flow Tailwater Headwater (ft) <br />Rate Depth Inlet Outlet <br />(cfs) (ft) Control Control <br />---------------------------------- <br />6.9 1.00 1.42 0.23 <br />PJormal Critical Depth at Outlet <br />Depth Depth Outlet Velocity <br />(ft) <br />------- (ft) <br />--------- (ft) <br />--------- (fps) <br />-------- <br />0.88 0.93 0.88 5.2G <br />-------------------------------------------------------------------- <br />-------------------------------------------------------------------- <br />PIPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.5 Copyright (c)198E <br />Dodson 8 Associates, Inc., 7015 W. Tidwell, rF107, Houston, TX 77092. <br />(713) 395-8322. All Rights Reserved. <br />r~ <br />U <br />