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<br />DEPART~~~+EgF SJ~IEISNTERIOR MAP OF FLOOD-PRONE AREAS GO~~~o~~D~_~1P~~~GLE b.4'"'
<br />t:JO "'''
<br />GEOLOGICAL SURVEY 7,5 MINUTE SERIES (TOPOGRAPHIC) ,,>'
<br />105000 9 MI. TO us .14 5064 IV sw 104052'30"
<br />400.' - 1 5,()llmm.E... MI. TO COLO..5e 503 I 57'30" ~04 R 6e W. 505 (JOHNSTOWN) R. 67 W. 506 I 507 55' s08 2170000 FEET I SlO 015'
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<br />40.07'30" ~- ./~ J....);..~~: 25~' TO COLO 5' .-- ~2150000 FEET' 5;30" '04 R 68 W FlR'5'ONE,-;;f- (FRWER'GK) R 67 W '06 I '07 55' '08 . ,.".oo._'o,~""'.u.'" w'.""O'."II"~" E, 104052'30"
<br />105000' DCNVFR I/N'lR~TAH. 701 ~'. MI 50tH 11/ sW
<br />SCALE 124000
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<br />U4ZOOOm.N.
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<br />Approximate boundaries of flood-prone an'as arf> shown un this map, Thefe is, on the averai(e,
<br />about 1 chanC'e in 100 that the desiKnated areas will lw inundated in any year. This information is
<br />. important to public agenciE:'s and private citizens concerned with future land dpvf>lopnu-'nts.
<br />Tht" f1()()l:l.prone area..'i have 11t't"0 delineated throulirh USf> of rt"adily available information on P3Hl
<br />floods rather than from detailt'd field surveys and inspections. In general, the delineau-d areas are
<br />for natural conditions and do not take into consideration the possible effects of existing' or provoHt'(1
<br />flood control structures except where tho~ l;'ffecl8 could be evaluau-d. Flood areas have lWf'n i{}('n.
<br />tified for: (1) urban ar('as where the upstream drainage basin exceeds 25 square milt.s, (2) rural
<br />areas in humid regions where the up!oltream drainagE.' basin exceeds 100 square miles, (;~) rural areas
<br />in semiarid regions where the upstream drainage basin exceeds 250 Hquare mile"" and (4) smaller
<br />drainage basins, dellendinK on topography and potential use of the floocl plain!ol.
<br />The 89th Congress, in House Document 46!i, recommended the preparation of flood-prone area
<br />maJ/'f'l to assist in minimizin~ flood losses hy quickly identifyinS{ the an-as of potential floud hazards.
<br />More detailed flood information may bl:' required for other purposes such as. structural dp",i~ns, ('('n.
<br />nomic studies, or formulation of land.ufle regulations. Such detailed information may Iwobtained
<br />from the U.S. Geoluj{ical Sur\'{'y, other F'edf'ral agencips, or State, local, and pri\'att~ aK{>rl('if'~.
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<br />1000 0 1000 2000
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<br />EXPLANATION
<br />
<br />1 ~llOM[lfR
<br />- =---=--~
<br />
<br />FI<K>d boundaries were estimated from:
<br />Regional stage-frequency relatjon.~.
<br />
<br />.
<br />
<br />COLORADO
<br />
<br />CONTOUR INTERVAL 10 FEET
<br />DATUM IS MEAN SEA LEVEL
<br />
<br />GOWANDA, COLO,
<br />
<br />N4007.5-W 10452,5/7.5
<br />Base by U.S. GeologIcal Survey
<br />1949
<br />PHQTOREVISEO 1969
<br />
<br />J
<br />
<br />QUADRANGLE LOCATION
<br />
<br />PREPARED BY U.S. GEOLOGICAL SURVEY
<br />1978
<br />
<br />+
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<br />.
<br />
<br />
<br />..
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