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<br />UNITED STATES
<br />DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />
<br />7,5
<br />
<br />DEL NORTE QUADRANGLE
<br />COLORADO
<br />MINUTE SERIES (TOPOGRAPHIC)
<br />106-15'
<br />.11~~~€TR7E. 37045'
<br />
<br />R 6E.
<br />
<br />MAP OF
<br />
<br />FLOOD-PRONE
<br />
<br />AREAS
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<br />T. 40 N.
<br />
<br />
<br />20'
<br />
<br />'88
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<br />106022'30"
<br />37045'
<br />T 41 N.
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<br />ApproximatE'! boundaries of flood-prone areas are shown on thi~ map. Th~'re i~, on the
<br />average. about 1 chance in 100 that th(' desiJZ:nated areas will be inundatNl in any year.
<br />This information is important to puhlic agpncil>g and private citizens concerned with futUT('
<br />land developments.
<br />Tht' flood-prone areas have been df'lineated through ww of readily available infllrma-
<br />tion on past flonds rather than from detailed field surveys and inspections. In ~f'neral,
<br />the delineated areas art' for natural ('onditions and dn not take into consideration the pm;-
<br />sible effects of existing or proposed flood control structurt's except whert' thmw t'fff'cts
<br />could be evaluated. Flood an'as ha\'c been idf'ntified for: (1) urban areas wtlt're the up-
<br />stream drainaJtt' basin exceeds 25 squarf' miles, (2) rural areas in humid region:-; wht're the
<br />upstream drainage basin ex('cedl" 100 squan~ miles, (3) rural area.... in semiarid regitms wht,ft.
<br />the upstream drainage basin exceeds 250 square miles. and (4) smaller drainage hasins,
<br />depending on topoJ{raphy and potential use of the flood plains.
<br />Tlw 89th COUlorrf'Ss. in Houge Do('ument Hifi, re{'o)nmenderl tht> preparation of flo6d~pron('
<br />area maps to assist in minimizinK flood lo!,i:'o;(>s by Quickly identifying the areas of pot('ntial
<br />flood hazards. More detailed flood information may be required for oth~r purpo~es such
<br />as structural rlesi~ns, economic studies, or formulation of land-use regulations. Such de-
<br />tailed information may be obtaint-u from the U.S. Geological Survey, other Federal agencies,
<br />or State. local. and pM\.ate agencies.
<br />
<br />R. 6 E R. 7 E.
<br />
<br />37"37'30"
<br />106"15'
<br />
<br />SCALE 1'24000
<br />1 ~ 0
<br />~~ ~ =--_~--==r-~~- _
<br />lOoo 0 1000 2000 3IX>O 4000 5{)00 6000 7000 FEn
<br />~~ ........___~__:--. -.=:=--=---:=::::r-::=:r:----=........-----,
<br />1 .5 0 1 KILOMETER
<br />~-=r=--;1~~~___ --=----==--=-=
<br />
<br />I MILE.
<br />
<br />EXPLANATION
<br />
<br />">-0
<br />,,~"f......>-
<br />..~'"
<br />-;..t;.
<br />~~lS'.A
<br />'9,
<br />
<br />Flood boundaries were estimated from:
<br />Regional 8tage~frequency relations.
<br />
<br />CONTOUR INTERVAL 10 FEET
<br />DOTTED L1NES REPRESENT 5-FOOT CONTOURS
<br />DATUM IS MEAN SEA LEVEL
<br />ThiS work was performed by the U.S. Geologica! Survey for
<br />and funded by the Federal Insurance Administration,
<br />Department of Housing and Urban Development, to meet
<br />proviSions of the NatIonal Flood Insurance Act of 1968.
<br />
<br />COLORADO
<br />
<br />.
<br />
<br />I
<br />
<br />OUADRANGLE LOCATION
<br />
<br />DEL NORTE, COLO.
<br />N3737,5-WI0615/7.5
<br />Base by U.S. Geological Survey
<br />1966
<br />
<br />1974,
<br />
<br />-
<br />
<br />-
<br />
<br />. -
<br />
<br />,
<br />/
<br />
<br />~
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