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<br />UNITED STATES
<br />DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
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<br />MAP OF
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<br />AREAS
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<br />MAD CREEK QUADRANGLE
<br />COLORADO-ROUTT CO,
<br />75 MINUTE SERIES (TOPOGRAPHIC)
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<br />EXPLANATION
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<br />Approximate boundaries of flood-prone areas are shown on this map. There is, on the avera~t'.
<br />about 1 chancp in 100 that the designated areas will b", inundated in any year. This information is
<br />im}X)rtant to public agencies and private citizens concerned with future land developments.
<br />The flood~prone areas have ~en delint'ated through ust' of readily availahle information on past
<br />floods rather than from detailed field sUf\'eys and inspections. In general, the delin€'att>d art'as are
<br />for natural conditions and do not take into consideration the posNible effects of ('xisting or propost>d
<br />flood control structures except where those effects could he evaluated. Flood areas have been ic1t'n.
<br />tifi('d for: (1) urban areas where the upstream drainag{-> basin li'xc('eds 25 square miles. (2) rural
<br />areas in humid regions where thli' upstream drainage basin exceeds 100 square miles. (:3) rural areas
<br />in semiarid l't'gions where the upstream drainage basin exceeds 2.')0 square miles, and (4) smaller
<br />drainage basins. depending on topography and potential Use of the flood plains.
<br />The 89th Congress. in HOllse Document 465, rf"commended the preparation of f1ood.prone area
<br />maps to assist in minimizing flood losses by quickly identifying the areas of potential flood hazards.
<br />More detailed flood. information may be required for other purpol'WS such as structural desiKlls. ecn-
<br />nomic studies, or formulation of land-use regulations. Such detailed information may be obtainro
<br />from the U,S, Geological Survey, other Federal agencies, or State,local. and private agencies.
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<br />"100
<br />
<br />Flood boundaries were estimated from:
<br />Regional stage.frequt'ncy rt'lations.
<br />
<br />F ,
<br />
<br />11 :E
<br />
<br />C("iNIOUF-
<br />001TI-C ", ....r
<br />r)A' ,'I
<br />
<br />'N11 PVAl
<br />
<br />Ij,'" f [ET
<br />
<br />,~j I, ,f.i5
<br />
<br />'Ii. I."
<br />
<br />,tA _Id
<br />
<br />COlORA.DO
<br />
<br />PREPARED BY THE U.S, GEOLOGICAL SURVEY
<br />
<br />QUADRANGI f lOCAT1Otl
<br />
<br />MAD CREEK. COLO,
<br />N4030.WI0652 517"
<br />Base by U,S. Geological Survey
<br />1962
<br />
<br />1979
<br />
<br />-
<br />
<br />--.
<br />
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