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n <br />~~ <br />PIPE CULVERT ANALYSIS <br />CChPUTATION OF CULVERT PERFORMANCE CURVE <br />October 2, 1989 <br />• <br />• <br />PRO(;F2AM INPUT DATA: <br />DESCRIPTION VALUE <br />Culvert Diameter (feet) ... ............................. 1.50 <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 />Cuivert Length (feet) ................................... 60.0 <br />Culvert Slope (feet per foot) ........................... 0.0500 <br />PRO~ftAM 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 />1.4 1.00 0.63 -1.95 0.34 0.44 0.34 4.74 <br />PIPE CULVERT ANALYSIS CChPUTER PROC~2AM 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 />12-2-67 <br />