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<br />Lewi~ Wa~h flooJfiows would remain
<br />imm..diHtely >>djacent to the channel
<br />throuj(hoLllitsknj(th.Flo",linj(alongllorizon
<br />Drive ehann,'1 WHllld ,~'losely parallel the
<br /><t,'eamwa,.v, IRaon Crppk fl(j()(jw~wr would
<br />remain do'c It.l th{,..hannl'i\Jntil abo\Jt~.O()O
<br />fGCt north of U.S, llil("\lwaj' 6-GO where it
<br />would ,;pr~ad ea,;terly abollt :,(1I) r""t and
<br />continue ""utlwrl;: unlill~>nrlinl( al!"aill~t the
<br />embn.nkm<,n~ of (;,S, Highway G.:,O and tho
<br />Denver and Rio Grande We<I,'rn Rs.ilroad,
<br />There woulrllw muchsheel flow flooding on
<br />both ,treams. Horizon Dr;ve Channel sheet
<br />flow wouldh..ginn"nhwcstofthcinwrseetion
<br />0126 Road and F Ro"d.aoJeontinllcweswrly
<br />adjacent l;) t. Road in a narrow band abo\Jt
<br />L:lI)O feet. lonj(, About ,,00 ket west of the
<br />im.('r>ection. sheet flow would fan out south of
<br />t' lwad foraoollt&J()kdandextendt<J25-~
<br />Rom', Oil l...'ach Cr,.,k, two 'mal] areas of
<br />~h,'et [low would oceur ,outh,'ast of the
<br />intcrS<'ction of G and ~~ l{oad~. and the
<br />
<br />FLOOD DAMAGES
<br />
<br />'fhe major fI"od loose~r<"ultinl(fromaIOO-
<br />or ,.,O()-ycar flood wOllld comprise re"idelltial
<br />and commereial damaJ(" in Grnnd .Junction
<br />and ~uburban a,'ea~: u~ficultural dama>!,':
<br />and darlHW;C to urid)<l'S, cuiver!." railro:t.d
<br />embankment, roads, and stre"ts, Rc~idcntial
<br />l()ij,...~ wOllld i,,,,lu,l(, damage to foundations,
<br />lower fl,.,r.. wall", [urni~hin>:s, appliancps,
<br />"-nd lawns "nd l:"rdcn" Commercial 100&;$
<br />would indude ~tructural and p,\llipment
<br />rl"ma~r.I()~sofinvpnt(,ry, and \pmrorary 10""
<br />of bU$ine<s, A!(ricult'Jrallo<ses would eonsi~t
<br />"r lO>'s "f en>p,;, ..rn~io". and costs of
<br />rt'hahilil.1ltinl( [ielJs t'.overed with debri,and
<br />,dl, :~lr..eL" and roads ~\Ibj,.ct w Inunci"tion
<br />
<br />intersection oIGal\d~4.\<,Roads, r'lmdwaters
<br />would spread out aliOut l.;mti fe..t to the
<br />,o\JthwR,t from G and 24.\j; IWads and extend
<br />wc~terly to 2~ Road where they would turn
<br />southalonl(theea,t"ideof24 Roadina
<br />fl()<xlrath about 500 feet w;du and 2,000 le;:l
<br />lon>r,:-<orthoIL''sHighwayii-50.floodwaters
<br />wOllld "'tend we,terly in a path about ~,(ln()
<br />k",t lonj(and 5fl(1 ft>etwide,
<br />The 10n.year flood would inundat" abemt
<br />:J.700 acres, of which aoout 2,lloo acres a"e
<br />agricultural or opeo land~, 700 "ere" are
<br />urbanizt"{l, 100 acrC~ arc rural rosidcntial,
<br />and GOO acre" are streamway. The 50o.year
<br />flood would genera\ly follow the "ame paltern
<br />as the lOO'year flrxKi oil the Colorado and
<br />Gunnioon Rivers and IA'wi, Wa,h, but would
<br />be somewhat wider ~nd Jcep<'r. Along u'ach
<br />Cr(.ck and Horiwn Drive Channel. large areas
<br />or "he;:,t flow and pondinj( would occur at
<br />variow locations durinl!" a 500.year flood.
<br />
<br />could bedamaj("" a"" m"de im'e~''Slliblefo,'
<br />extende<l peri,~ls, Rridges alld cuh"'rt< <ould
<br />h<' damaged or d,,'troyed. Streamhanh.
<br />~hannel i~land".anda~;o.ultur"llandsw()uld
<br />oe subject to ('ro,,,,,". ~'I,"1d fighting and
<br />r,'pair and restOrllti<>n costs would be exten.
<br />s'''e.
<br />Dama...." would be l(f<'atcr during a 5011-
<br />rear l!oodthar. during a lOO.yearf!oodd,,"to
<br />;"widcrO",,dphin,gr,'aterdel'thorfIotKiinl!",
<br />and higher velocity (,[f!ow,
<br />The deptb of flow in the variou~ channel;
<br />and :,djacent flooded 1lX,>as (exdudinl!" Rh,~.t
<br />flow ar..as) ean be dNermincd from the water
<br />'IIrfa"" prohl,'" Rhown on Plate< ~1<-74,
<br />
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