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PIPE CULVERT ANALYSIS <br />COMPUTATION OF CULVERT PERFORMANCE CURVE <br />June 13, 1995 <br />YOAST MINE <br />CULVERT YA-7 (REVISED) <br /> <br />PROGRAM INPUT DATA: <br />DESCRIPTION VALVE <br />Culvert Diameter (feet) ................................. 2.00 <br />FHWA Chart Number (1,2 or 3) ............................ 2 <br />Scala Number oa Chart (Type of Culvert Entrance)........ 3 <br />Manning`s Roughness Coefficient (a-value) ............... 0.0240 <br />Entrance Loes Coefficient of Culvert Opeaiag............ 0.80 <br />Culvert Length (feet) ................................... 100.0 <br />Culvert Slope (feet per foot) ........................... 0.0500 <br />PROGRAM RESULTS: <br />Flow Tailwater Headwater (ft) <br />Rate Depth Inlet Outlet <br />(cfs) (ft) Control Control <br />20.6 1.00 3.46 0.63 <br />Normal Critical Depth at Outlet <br />Depth Depth Outlet Velocity <br />(ft) <br />------- (ft) <br />-------- (ft) <br />--------- (fps) <br />--------- <br />1.30 1.63 1.30 9.57 <br />------- ---- ----------------- <br />PIPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.7 Copyright (c)1986 <br />Dodson S Associates, Inc., 5629 FM 1960 W., #316, Houston, T% 77069 <br />(713) 460-3787. All Rights Reserved. <br />• <br /> <br />`.J <br />