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<br />"l: <br /> <br /> <br />o <br />... <br /> <br /> <br />. <br /> <br />~ <br /> <br />Point A is located at . <br />elevation =10+(0,9 X 10 <br />foot contoll'. interval} = k <br />10+9=19 feet. left bank. <br /> <br />Point A' is calculated <br />in same manner and is. on <br />right bank. <br />Points S and S' are 0.1 <br />X distance measured <br />upstream between contour <br />crossings 10 and 20. <br />Elevations are 110+1 =" 1 <br />+9 foot depth=20 feet. <br />Points C. C'. D. D', E, <br />E.~ F~ F' are calculated in <br />serre minner <br /> <br /> ~ <br /> u:: <br /> 0 <br /> 0: <br /> 0... <br /> 0 <br /> 0 <br />(.J 0 A A' <br /> ...J 20 <br /> u. 19 <br /> ~ <br /> w <br /> >,- .... <br /> 8 tH 15 <br /> - u. <br /> 10 <br /> <br />.... <br />gs:g~~o <br />133~ <br /> <br /> <br /> <br />S' <br /> <br />S' <br /> <br />20 <br /> <br /> <br />.... <br />~15 <br />u. <br /> <br />11 <br />10 <br /> <br />. <br /> <br />100-YEAR fLOOD DEPTH <br />STREAM CROSS SECTION S <br /> <br />Figure 2:'7'"Method used to sketch flood-prone area boundaries. <br /> <br />6 <br />