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<br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />CUlDLLIf0ES Lori rUiUD ;:'~ilI:!MU\Cf"iLlJT <br /> <br />iYlan Iii";!:':; boen b:Jilding on :::;.r;:J ~':,c:ufJying tole fl()~)d plains <br /> <br /> <br />of rivers .Jnd smCJller Gt1'8::.!ii1S since t.h'2 2J:~ival of the plofioer set- <br /> <br /> <br />tlers. The stre~rilS first provided tr2nspo=tation arlJ w3ter StJpply <br /> <br /> <br />and, laler, their usuDlly gentle valley gr2des encouraged ths =on- <br /> <br /> <br />SLrLJction of highw8YS and fnilroads. Tod~j, the continuing growth <br /> <br /> <br />of cities results in ever increasing 2ncro~chment on the flood plains. <br /> <br /> <br />Through bitter experience, man has learned that floods <br /> <br /> <br />pe~iodically inundate portions of the floQe plain, ~am2ging property <br /> <br /> <br />and often causing loss of life. Vast money and,material resources <br /> <br /> <br />have been expended for structural flo~d cODtrol projects--dams and <br /> <br /> <br />reservoirs, levees, channel improvements, 2~d similar protective <br /> <br /> <br />works--designed to secure man's habitat against the force of nature's <br /> <br /> <br />floods. Unfortunately, however, encroachm~nt on the flood plains <br /> <br /> <br />has taken place faster than control structcres can be built and <br /> <br /> <br />costly flood damages have continued to inc~ease across the nation. <br /> <br /> <br />This increase has led to a new approach for reducing flood damages. <br /> <br /> <br />Called "flood plain management," this new 2pproach consists of ap- <br /> <br /> <br />plying controls over the use of the flood prone land which lies <br /> <br /> <br />adjacent to the watercourses. <br /> <br />Guidance on various flood plain management techniques, <br /> <br /> <br />that can be adopted in a realistic flood dawage reduction program <br /> <br /> <br />is presented in the following text. Specific recommendations for <br /> <br /> <br />implementing any particular technique are not provided, however, <br /> <br /> <br />as such option generally remains the responsibility of local com- <br /> <br /> <br />munity, county, or State governing ag2ncie5. <br /> <br />, , <br />! <br />1,- <br /> <br />Interpretation of Data <br /> <br /> <br />Flooded area maps, profilss, and selected cross sections <br /> <br />are provided in the report to define the limits of flooding that <br /> <br /> <br />would occur during an Intermediate Regional Flood or Standard <br /> <br /> <br />Project Flood. Hypothetical examples of th85e presentations, <br /> <br />, , <br /> <br />'-;'. <br /> <br />r::' <br /> <br />"'." " "~ <br /> <br /> <br />-'.'_0"' <br />