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<br />,\ltl'''"gh tilis facil i ty i s upstream "f the stuciy r<:"lch "', t ~I " The head,:aters an' locatec1 primarily 'm th" ",."stern ,;Llp'" ,f
<br />Arkansas River, i, i, assumed " have only e limited "ff;;ct '0 Evans P;;ak, " alevativns greater than 13,500 fe;;t. Evarts Gulch
<br />fIovd clevativns t, <he study areCl. The draintlge area above t,,., flows io , westerly dirl'ctl.'Jn " its c"nfluence ,dth <he Fast
<br />d.grn f, 24.9 squllre mil,'s, " ),6 percent "f th<! tvtel b'l.,in "r F'Jrk Arkans<ls River Ilppr,);dmately ,)ne mile north .)f L""dville,
<br />the d'Jwnstrea~ stuciy limit '" 'he Arkansa,) Piver. Cvlvradv.
<br />
<br />Ilw 141,000 8crp-feet l\dn Lllkes Peservvir spi 1 j.,a'Y is l')C1lt..d
<br />appr.)ximately 9..9 milps d')wnl>tn'elr. .j[ the study reach on [.Il];"
<br />Crt=<!k, Rnd will thereL,re have n.) effect on fl')od ~'lev<lti.)ns in
<br />the study area. There 8re no vther existing 'n authvrizec fl.~,~J
<br />contral structur~s within the study area.
<br />
<br />Strea!1' stat i.)ning for Evans Gu leh i.~ h",,,.rl in hU'lrlrf'ns of fp.'c
<br />ah<:lVe the Hig Evens R~'s<!rv.)ir embankment ,,:hich is alsv c'w
<br />downstream study limit. The watersheci area nrAinec at the
<br />d')'''nstrca", study limit is approximately 7.8 squaroe miles.
<br />Tributaries ..:ithin the watershed area include Lincoln Gulch and
<br />South Evans Gulch.
<br />
<br />:-1ajvr transmQuntllin diversi'Jn structures in the IIrkansas River
<br />Rasin as a part .Jf the ArkanSlls-Fryingpan Project (RL'ference 7)
<br />include the ChHrles Bvustead Tunnel and Hom<'state Tunnel. These
<br />structures transfer wat<!r fr,)m the western slop" t.) Turquoise
<br />Lake.
<br />
<br />Table 1
<br />streams
<br />
<br />summarizes drainage areas
<br />under consideretivn in this
<br />
<br />,It various
<br />repelrt.
<br />
<br />pvint~
<br />
<br />al'Joe
<br />
<br />the
<br />
<br />The Hoosier Pass Tunnel, Columbine f)iteh, r.wing DItch, ;,lurt~
<br />Ditch and the Rush-lvonh(lt" conduit (Old Carltvn Tunnel) are oth",r
<br />transmount8in div~rsion8 intv the Arkansus River basin as part elf
<br />the Arkansas~Fryingpan Project.
<br />
<br />TABLE I - DRAINAGF AREAS
<br />
<br />Locati.Jn
<br />
<br />IIr!)D. (~q. mi.)
<br />
<br />Arkan~as lliver
<br />Arkansa~ River
<br />
<br />Downstream Limit
<br />Upstream tildt
<br />
<br />327.0
<br />303.0
<br />
<br />Lake Creek
<br />
<br />Lake
<br />l.,qkE'
<br />
<br />Creek
<br />Creek
<br />
<br />Downstream Limit
<br />Upstream Limit
<br />
<br />64.0
<br />55.4
<br />
<br />Lake Creek originates in th(' S"wAtch Rang", at the c'.:>nflu('nce of
<br />rhf' north 8nd South F,Jrks "f Lake Cre,"k. 'fl.", heIHJw"t<!rs sre
<br />1,lCatf'rl in S8:n Isabel t\ation.al F0rest at elevations in e'xcc',,~ vf
<br />13,500 feet. r.....ke Creek flows fr'J<a its origin 7.5 mUps t'l T":1n
<br />Lakes Rescrvvir and ttwn to its confluence with the Ark,qnSflS
<br />River near B811town, Colvrado.
<br />
<br />Evans
<br />Evans
<br />
<br />Gul"h
<br />Gulch
<br />
<br />Downstr"a", Li".it
<br />Upstream Lirdt
<br />
<br />7.8
<br />4,0
<br />
<br />B,
<br />
<br />Study Reach Descriptiun
<br />
<br />~h", Arkllnsa~-Fryingpan Prvject incl udes A m'lj,.,r fl,_,,,' div"'r~i')n
<br />into the ..'atersheG [ru<fi the C"lvrado R.iver Jlilsil1 thr<~l",h ",eo '1'";,,
<br />, 0
<br />LAkes Reserv.)ir and r.an<ll r.vmpllny Tunnel Number 1. This
<br />diversion is located in the hL'adwat"r ..rea 'Jf N.Jrth Ll.lkt. Cr;;ek
<br />appr0xilOlltPly 4.5 miles upstre8m .)f the study site. A USCS/State
<br />vf Cvlorado str<!8mgflge (07084500) on Lake Creek UpstrC8m vf T..'in
<br />LakllS Reservoir and locllted appr.)ximately J.O wiles downstream .)f
<br />the nudy site has bt,en \1perativn81 since 1941. Str<!aro
<br />"t8ti.)ning fvr LakeCr""k is base<l vn hundreds vf fe<.'t IIbovc this
<br />g"ge. Th., downstream study limit of the Lah' Creek rell"h .If this
<br />rep,1rt is lvcated Ilppr<.lxftNltely 14,500 f..,.t upstrealO of
<br />str<!!Imga!(e (07084500). Thf' wAtpr<:h..d 'l"''''' dnll,,;;'! P.t this p0!.r.~
<br />is apprvd.n:ately 55.4 square Iril<!s. Tlw main tributaries ,,:it'1in
<br />this water,;hed area 'lte Soutl1 Fork Lake Cl-eek, elorth F.;rk La;';",
<br />tret'k, La Plllrr< Gulch, Echv C..'ek, and Crystal Lake Creek_
<br />Evans Gulch
<br />
<br />Arkansas River
<br />
<br />:'1,.0 ~t,-,Jj ,-",,,<Ct, [,," L\", A,'k<lLl~tlS River st"rt" approximately 4.8
<br />miles ab.Jve Granite, Colorado, nnd includes th<.' railr.:>ad junctl..]n
<br />.J[ Kvbe, C<.llorado. Within the study r"<lch, the str<!am flows to
<br />the svuth paralleling t"" (lenver and R.i,) Crtlnc{' 1,'estern Railr'Jad,
<br />United States High,,:ay N'J. 2/., nnd Bvx Creek. ~l1e land
<br />imnwdiately adjacent to the stream is "en<!rally l.lndevel,'pl'd, with
<br />th" exce;:>tiol1 vi .1 fe,,' isolated resid"nces. Within the study
<br />reuch the streambed consists .)f r.)undcd !ltvncs and boulders, And
<br />is burd<!r..d on the west by <In essentially flat overbank and .)n
<br />the e<lst by an <llt€'ratin,', gentle/steep overbank. I)ne brid"c
<br />(L<lKe C,-,untv Rvad No.8) cr')s"e" the Arkansas River in tht. study
<br />areR. Tl1€' .total study r"lIcn 0" t1-w /I.rkan"8s Rive)' is 2.0 rr.iles_
<br />Vegetation in the study reaches of the ArkllnSHS River and Evans
<br />Gulch con~ists of den~e wi 11'JW husnes and shvrt grasses al,)nf; th,>
<br />c h a nn,~ Is,,' i t h " va ria t i on .) f "ve rg rt' ens in h i g her e I e v R t i 'J n s .
<br />
<br />.Evans Culch 'w !l. ...at"rsnei! [,)r
<br />,}rigl.nat..,; in ...estern I.ake C.\Jlint.l.
<br />
<br />the
<br />'1ig,h
<br />
<br />Parkvil1e
<br />irl the San
<br />
<br />I.'ater
<br />IRal:,:'1
<br />
<br />District
<br />F,)re~t .
<br />
<br />,5,
<br />
<br />-6-
<br />
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