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<br />UNITED STATES
<br />DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />
<br />MAP OF
<br />
<br />FLOOD-PRONE AREAS
<br />
<br />IDAHO SPRINGS QUADRANGLE
<br />COLORADO-CLEAR CREEK CO
<br />7.5 MINUTE SERIES (TOPOGRAPHIC)
<br />NE/4 CEORGETOWN 15' OUADRANGLE
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<br />l0503l30" . 448 \MT f."VANS SUMMiT 8,,, Mf 35' 450 451 (HARRIS PARK' 452 453 32'30' 455 . ''''''''<(>'h,U;'''O(.,<:~, u,;.... '"'~........,.,"..;,o, 105'<>30'
<br />Ap~}roximat(' boundaries of flood.prone areas are sho\\-'n on this map. There is,on thp sc;~~ ;'2~OOO 4SSOODml.
<br />aV('rage, about 1 chance in 100 that the deRi~nated areal-! will be inundated in any Yl>ar. ~ o' 1 M!LE
<br />This information is important to public ag-encies and private citizens l'onct'rned with future 1:,-:::1.-.- ~"}'':-:..E2r ':F':'=:::C. E ==- _"""~:::::::::::E=:?~r.::- . ----,---- -~
<br />land den>Iopments. 1~"3:..t':3::~.:::::.. l?OO~OOO _... 3~.._~_. "_"__~___..~_______ 7000 fur
<br />Th~ flood. prone areas have bet>n delineated through u~e of readily available informa- 1 -1:.--; --~,.- ;--,,==- - -~---:=;::'3:._'''l''.K;l~TtP
<br />tion on past floods rather than from detailed field survey:;; and inspections. In general. ~.E="'1::~:'::::E:;::r:;;:~~ - .--, -'-~
<br />the delineated areas are for natural conditions and do not take into consideration the pos- CONTOUR INTERVAL 40 FEET
<br />sible effects of existing- or proposed flood control structures except where those effects DAfUM lS MEAN :'.[A lEVEL
<br />could lw evaluated. Flood are-as have been identified for: (1) urban areas where the up- This work was performed by the U.S. Geological Survey for
<br />strt'am drainagt.' basin exceed!'! 2;') square miles. (~) rural areas in humid reJ.{ions where the and funded by the Federal Insurance Administration,
<br />upstream drainage basin exceeds 100 square milt.'s. (;H rural areas in semiarid regionJ:l where Department of Housing and Urban Development, to meet
<br />the up~tream drainagt.' basin exc('eds ~50 ~quare miles, and (4) smaller drainage bafiins, provisions of the NatIonal Flood Insurance Act of 1968.
<br />depending on topography and potential liSt-:' of the flood plains.
<br />The 89th ('onu-ress, in House Document 46.'). recomme-ndt'd the preparation of floorl~pn.me
<br />area maps to assist in minimizing- flood losst's by Quickly identifying the area~ of potential
<br />flood hazards. ~lore detailed flood information may be- required for other purposes ~mch
<br />as structural designJ:l. f'conomic studies, or formulation of land~use regulations. Such dt'-
<br />tailed information may be obtained from thp U.S. Geological Survey, other Fed€'ral agencies.
<br />or State, local. and privatt.. agencies.
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<br />10566
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<br />105"3730'
<br />39045
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<br />G90" i()
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<br />"88
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<br />EXPLANATION
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<br />'-;.
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<br />Flood boundaries were estimated from:
<br />Regional stagl!~freQuency relations,
<br />
<br />'l
<br />
<br />COLORADO
<br />
<br />QUADRANGLE LOCATION
<br />
<br />IDAHO SPRINGS. COLO.
<br />NE/4 GEORGETOWN 15' QUADRANGLE
<br />N3937.5-WI0530/7.5
<br />8ase by U.S. Geological Survey
<br />1957
<br />
<br />1974
<br />
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