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<br />PREFACE
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<br />M6i1;;'61' dou it o:x:tlmd (my Federal Clutho2"it)f aWlI' wning cr other
<br />~guz:ations of flood plain 1<86. H0W6Wl'. it do68 provide a basis for
<br />flU'th4T' Btwiy and pZanning fol" optimwn UlI6' (DId dclwlop""'"t of flood p:rcme
<br />araae tluocugh ;lloning and .ubdivi8Wn regut.atio"". cGmBt1'l<Ction of j7.ood
<br />OOlltJ'O. projeatu, or by a combination of ths"" and otMI' approacMe to
<br />Nldl.c';I'lg flcod haaards and flood damage. Informa.ticm ccmtaiMd in the
<br />report would aba be WJ6fuZ in programs dJ1alil'lff ..nth too 6(!()l.orrical and
<br />,mvil'Onln/mtal a8p6cte of tM etl<dy aNa.
<br />
<br />11w Saoramento Dilltl'iotgrat6ft<Hy aclowf,Jledeee the Cl88wtanoe and
<br />ooop61'<:ti<m of the COUJ1'aOO Depart>7lel1t of Hif/hL)aY8, th6 Glwld Junotion
<br />Daily S.mtinBl, the enginBsl'ing ,upartme1ltil of G1'Wld .Tll1'ICticm and Ne8a.
<br />County, tM W"St61'l1 Colo~ S"git,nu;ll Pktnning CatmtiJJeiorz, the G1'and
<br />JWloti<m Cllambi1ll" of CO<IJIWl'CfI!, Val"iowe Federal '4/enc;,8s, and individJAallJ
<br />who diNotZy 01' indirectLy a.idsd in the preparation of this 1'EIpol't.
<br />The Weetel">! Cokiroado Regional Planning C0ll7lti8sion witt mak.e th6 {."'lo:1"-
<br />mati01'l in thill repol"t available to all interellted agencies and individuale.
<br />Copies of trw 1'IIport and inf01'ma.tion on its uee =e available from that
<br />office. The Saaramento Viflt7'ict of the Corps of t"ngincers wilt, upon
<br />t'e'l"ellt, provide ualmieal <zssisUmae to Federal, State, and loaaZ
<br /><%gen<ries in the interpretation and use of data presented heN in, and
<br />/JiZZ provide othel" availablll data reZated theN/to.
<br />
<br />The purpOll1l of thie 1'6port ill to p1'68ent info1'ma.tion on the flood
<br />haaard aZm1g the CoZo1'ada 47ld GWIJ1ison Ri1X!rIJ in ths vi<rinity of Grand
<br />Junction, MeIJa County, Co1.crado. ReIJidimtial, indwJtriaZ, and agri-
<br />cultural da1oo.ge oceurred in ths study area durin'] [1.cods that oO(>Ul'1'6d
<br />in 1884, 1817, 1921, 1852, and 1957. Studies made for this report s~
<br />that f'/.o<>d8 of tlul magnitude of othsr palJt fZood8 can OCCUl' in ths
<br />fut1.lro9, although flood contl'Ol "P"rationlJ of P=ia and Blue Mesa
<br />ResllrPoirs in th8 Gunnison Ri-vllr w.ainage l'fldw:J"s the fl.cod threat on
<br />the GUMison RiVB1' and On the Colorado Riv"r downstream from the mouth
<br />of the Gunnison Riwr. A recurromce of the 1884 flood, the mest 118Ve1'6
<br />known, OiOu1.d inl<7ldate about the same aNa on Colorado Ri1X!l" upstream
<br />from th8 mo!.lth of th8 C"""illon River, and I<X>l.<ld bg CO/18idilrably l"educed
<br />on the Gunnillon River and dolJnl/tream Coloraoo Rivero aNaI/. This report
<br />contains infornutiem em paet floodB, an.d ~II, profilel/, <md Cl'Ol/lI
<br />III1Ctio>l1l that indicatl1 the appl'Orimate e",tent and depth of i..undation
<br />from 't<v-ge fZooda that can rllal/onably b.. "",>,eeted to OCCla' in tlw
<br />f1J.tla'e. For PIa'pOlJell of thill Nporot. these fZoo@ have b.urn deeignated
<br />a8 Intermediate Rer;icno.l and Standmod ProjlJct Floode.
<br />
<br />Thill Nport wall prospaNd at the Nquellt of the West8J'11 Ce1.c1"Cl<k>
<br />RegionaL nanning COImiiSIIUm, with the inOOl"lIement of the Colomdo Wat",.
<br />,,___.,.,.~....'~_ ~M~'" :::de:- t.l:a ocn.ti!1ui!1g rI'.4thol"ibJ Pro!,.;,,jpd t.M r.m'!".
<br />"""~D'W~._" ~~~,
<br />of E11gineel"s in Se(:!tion 208 of /;he 1960 F1.cod Cemt1'Ol Aet (Public LaI.i
<br />86_645), as <1I/l6ndsd. It is inhmded that tlw repol"t be lU/ed by the city
<br />of Grand JW\cti<;m, Mella 'Count!!, and othel" fZood pZain ueel"1l in de1JeLcping
<br />and usin!J {Wod pl.ain aN<18 in Buell a way that flood haz=da and fll.twoe
<br />f/.cod dnmatJes are minimized. RII~dati<;m11 or pLane fOF the solution.
<br />of flood probLlI>'!e in tit.> uuay al'6a aN not incLuded in this ""peFt;
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