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<br />UNITED STATES
<br />DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
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<br />MAP OF FLOOD-PRONE AREAS
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<br />lO.l"11Jv ~13 R. 65 w R.64 W ~~ ,,~~ H'. ..! ~36 Ifr
<br />Approximate boundaries of flood. prone areas are shown on thiJI map. Tht>~ is. on th~
<br />avera&,e. about 1 chance in 100 thllt the designated areas wlll he inundated in any }'ear.
<br />this information is impurtant to puhHc ag("nci~8 and private citizens concerned with future
<br />land develop menta.
<br />The flOQd.prone areas have been delineated through uee of readily available informs.
<br />tion on palt flooda rather than from det.Ailed field lurveys and inspections. In general.
<br />the dplineated areas are for natural conditions and do not take into consideration the po8'
<br />tdbIe effects of existine or proposed flood control structures except \\'here thOse crf~ts
<br />could 00 evaluated. Flood areas have been identified for; (1) urluin areas whert' the up-
<br />atream drainage basin excma 25 square mil". (2) rural areaa in humid rf>JC1ons wtu~re the
<br />upstream drainage basin e)(~dlllOO lIquare mil_, (3) rural areas in lIemiarid regions w~re
<br />the upsb'eam drainage basin exceeds 250 8quare miles. and (4) .maller drainage basins.
<br />deJM!'ndina on topoirraphy and potential use of the flood plains.
<br />The 89th Conrre.as, in House DocuRM"nt 465. recommended tbe preparation of f100d~prone
<br />area maps to asiist in minirnizinr flood 10000S by quit"kly identifyinK the areas of potential
<br />flood haurds. More detailt>,d flood information may be required for other pUrposif'S such
<br />JUi. structural dll!Signs. economic atudies, or formulation of land.W1e l"eKUJatioruJ, Sut"h de.
<br />tailed information may be obtained from the U.s. (,~Io~cal SurveYI other FNieral ~encifl.
<br />or Statt!,IOiCal. and private &8'eO('I6. _____ __
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<br />P'epa,red by th(' U.s. Deoartment of \.tie Interior,
<br />GeologIcal Survey! 'locooperation with tt-e
<br />U.S. Department of Ho~sjn8 dnd ,Urban Developmllnt.
<br />Fede,at lnsunnce AdminIstration.
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<br />t:.x:PLANAT10N
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<br />Flood boundariee were esumated lronr.
<br />Reaional etaa..fn!lQuency relatlona.
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<br />Bue bytt.S~ Gf'OfOj.ical Sun:e:y
<br />1960 .
<br />
<br />1973
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