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• <br />PIPE CULVERT ANALYSIS <br />COMPUTATION OF CULVERT PER.FORMA:`!CE CURVE <br />February 9, 1991 <br />SENECA II-W <br />CULVERT G-~ <br />PROGR.IM INPV1' DATA: <br />DESCRIPTION VALUE <br />CZ~lvert Diameter (feetl ................................. 3.U0 <br />FHWA Chart NLUnber (1,2 or 31 ............................ 2 <br />Scale Number on Chart (Type of Culvert Entrancel........ 3 <br />Manning`s Roughness Coefficient In-value) ............... 0.0290 <br />Entrance Loss Coefficient of Culvert Opening............ 0.50 <br />Culvert Length (feet) ................................... 240.0 <br />Culvert Slope (feet per foot) ........................... 0.1000 <br />PROGRAM RESULTS: <br />Flow Tail.water Headwater Iftl Normal Critical Depth at Outlet <br />Rate Depth Inlet Outlet Depth Depth Outlet Velocity <br />Icfs1 lftl Control Control Iftl Ift) Iftl (fps) <br />-------------------------------------------------------------------- <br />90.9 2.00 3.60 -17.72 1.23 2.07 1.23 1-1.76 <br />-------------------------------------------------------------------- <br />-------------------------------------------------------------------- <br />PIPE CULVERT ANALYSIS COMPUTER PROGRAM Version 1.7 Copyright Ic11986 <br />Dodson & Associates, Inc., 7015 SJ. Tidwell, X107, Houston, T~ 77092 <br />17131 895-8322. .111 Rights Reserved. <br />• <br />• <br />