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<br />PIPE CULVERT ANALYSIS <br />COMPUTATION OF CULVERT PERFORMANCE CURVE <br />July 19, 1993 <br />CULVERT LFC-4 <br />HGLF INC. <br />HAYDEN, CO <br /> <br />PROGRAM INPUT DATA: <br />DESCRIPTION VALUE <br />Culvert Diameter (feet) .. ........................... 3.00 <br />FHWA Chart Number (1,2 or 3). ...... ... ....... 2 <br />.. .. ... <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)... .......................... 30.0 <br />Culvert Slope (feet per foot) ........................... 0.0200 <br />PROGRAM RESULTS: <br />Flow Tailwater Headwater (ft) Normal Cr itical Depth at outer-c <br />Rate Depth Inlet Outlet Depth Depth Outlet Velocity <br />(cfs) (ft) Control <br />--------------------------- Control <br />-------- (ft) <br />--------- (ft) <br />------ (ft) <br />---------- (fps) <br />-------- <br />0.8 0.50 0.32 1.02 0.27 0.23 0.50 1.07 <br />--------------------------------------------------- <br />PIPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.7 --------- <br />Copyright -------- <br />(c)1986 <br />Dodson & Associates, Inc., 7015 W. Tidwell, #107, Houston, TX 77092 <br />(713) 895-8322. All Rights Reserved . <br />`~ <br />12.4-20 <br />