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<br />CflAPTER V <br /> <br />INTERPRETATION Alill USE OF REPORT DATA <br /> <br />Flood Frequency and Dischargr:. <br /> <br />The 10-, 50-, lOO-M, and SOG-year flood ':~v'~nts were used as thE: flood <br /> <br />frequencies for this floodplain analysis, <br /> <br />Thus, the data developed ifl <br /> <br />tllis report will be enforceable not only f~)r regul.ation purposes and H.B. <br /> <br />1041 designations but also for Federal rnr~urance ,~dministration flood <br /> <br />insurance rate studies. <br /> <br />The various flood events have an average occurrence of once in the t~me <br /> <br />perioe indicated. For example, the IOD--year flood occurs, on the aVI:>rage, <br /> <br />once in a 100 year period, and has a one J'e:~cent chance of being equaled <br /> <br />or exceeded in any given year. <br /> <br />It l.R interesting to note that, <br /> <br />statistically, the chance that the 100-yenr flood will not or cur in the <br /> <br />next 100 years is 37 percent. <br /> <br />Tb.e particular uses for tht:~ various fJood (:,vents in <1dd itiol1 to those <br /> <br />stated above are as follows: <br /> <br />10-year and 50-year flood events <br /> <br />Information regarding these more frequQ_nt floods is especia:i.ly useful <br /> <br />for future engineering studies and lanel Jse planning p\lrpOSes related <br /> <br />to minor road systems, minor channel iDprovements, the location of <br /> <br />parks <br /> <br />and <br /> <br />recreational <br /> <br />f",c:llUie,':, <br /> <br />agricultural <br /> <br />lands.. <br /> <br />and <br /> <br />17 <br />