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<br />3. ANALYSIS (Cont'd) <br /> <br />I';levaLions Above Which "'low is l';!TecLive for Overbanks <br /> <br />Left Overbank <br /> <br />lJ pstrea 'n face <br /> <br />1,637.7 <br /> <br />Right Overbank <br />4636.6 <br /> <br />Downstream face <br /> <br />4637.7 <br /> <br />4636.6 <br /> <br />:v1inimum Too of Road Elevation <br /> <br />Left Overbank <br /> <br />Right Overbank <br /> <br />U pstrea m face <br /> <br />4642.54 <br /> <br />4642.86 <br /> <br />Downstream face <br /> <br />4642.54 <br /> <br />4642.86 <br /> <br />lOG. Year Elevations <br /> <br />Water Surface <br />~~levations <br /> <br />(,nergy Gradient <br />Elevations <br /> <br />U pstrea m face <br /> <br />4637.12 <br /> <br />4637.49 <br /> <br />Downstream face <br /> <br />4637.12 <br /> <br />4637.49 <br /> <br />Oischarge <br /> <br />A mount of flow <br /> <br />through/over <br />the structure (5) (cfs) <br /> <br />Low Flow <br /> <br />Pressure Flow <br /> <br />Weir "'low <br /> <br />Tolal Flow <br /> <br />D,700 <br /> <br />o <br /> <br />o <br /> <br />10,700 <br /> <br />The maximum depth of <br />flow over the roadway/railroad (ft.) <br /> <br />Weir length (fU <br /> <br />o <br />180 <br /> <br />Top Widths <br /> <br />Floodplain <br /> <br />["Ioodway <br /> <br />U pstrea m face <br /> <br />1189.0 <br /> <br />650.0 <br /> <br />Downstream face <br /> <br />706.0 <br /> <br />563.0 <br /> <br />Top Widths <br /> <br />Effective Flow <br /> <br />Effective and <br />Ineffective Flow <br /> <br />Upstream face <br /> <br />132.0 <br /> <br />Downstream face <br /> <br />131. 0 <br /> <br />Bridge/Culvert Form <br /> <br />Form? <br /> <br />Page4ot6 <br />