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• <br />PIPE CULVERT ANALYSIS <br />COMPUTATION OF CULVERT PERFORMANCE CURVE <br />October 30, 1990 <br />--------------------------------------------------------------------- <br />PROGRAM INPUT DATA: HRC-B3 <br />DESCRIPTION VALUE <br />--------------------------------------------------------------------- <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) ........................... 0.0500 <br />-------- <br />-------- <br />PROGRAM ----------- <br />---------- <br />RESULTS: --------------- <br />---------------- -------- <br />-------- --------- <br />--------- --------- <br />-------- -------- <br />--------- <br />Flow Tailwater Headwater (ft) Normal Critical Depth at Outlet <br />Rate Depth Inlet Outlet Depth Depth Outlet Velocity <br />---(cfs) <br />----- ------(ft) <br />---- Control Control <br />---------------- (ft) <br />-------- ----(ft)- <br />---- ----(ft) <br />---- ----(4 <br />- <br />10.1 2.00 1.59 -3.65 0.76 1.06 0.76 7. <br />-------------------------------------------------------------------- <br />-------------------------------------------------------------------- <br />PIPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.5 Copyright (c)1986 <br />Dodson &- Associates, Inc., 7015 W. Tidwell, #107, Houston, TX 77092 <br />(713) 895-8322. All Rights Reserved. <br />•