|
<br />Ijll l(t" ,
<br />
<br />Platl(..:"\iohrara Subbasin
<br />
<br />Th.~ !'lallt' ~llIhrara ";llhb<l~in ('j"",-, j~~i,-i~l:! '-quart'
<br />mdt,~ Il1lht' ~"lllh\\t...l ilnd n'nlral ptlrll1llh.. \tl~"(!IJri
<br />Hi\..r lw..m, Fi.."llrp :\,.... Thl" ['Ialll" HI\.t'r I~ fornwd hy
<br />Iht, Joinlll!.: 01 till' "';OJulh Plallt. Hi\t'r !1owm~ uul fll
<br />l1urtlwa"'lt'rn ('"jnrado ,IIHl Iht. ;\I!rth !'lalll- Hi\t'r
<br />llowmg <JUI III ~(I1Jlh,'a"lI'rn \\'\'''l1l1n.: Th(,-.{, two ri\'.
<br />er... J"m Ilt'ar '"rIb l'lall." .\',.IITihka I" lorm th..
<br />Plath' Hin'T (ltht'r Illlp"rtant 1'1alll' Hiwr trihularll-~
<br />Indudt' Iht' J."llJl dlld Elkh"rn Hi\t'r" m l~;j,.It'rn ;\1-.
<br />Ilra~ka. Tltt' 'lohrar,1 Hi\t'r i~ ,; Irlhulary III lht' ,\11"-
<br />..Iluri IUt'all.1! ill p7<trt'lIle Jlllnh,'rfl 'difa"ka. TIlt'
<br />tIlaJI,nlY 01 till' "'\lhha..in i" !ot';;(ed in Ih.. Ihn.p -.tatt'."
<br />01 t'1I1<lr;uh" \\\OllllllJ.: ,md ;\dtra"ka A_mal] part III
<br />t h.. .;ubha"in 1" i",'all.r!lll '-,,\1111\\ ,'-.lprIl "';ull1 h [lakota
<br />
<br />Th.. topogr;lpln j,. highly \',In..d. [11 11ll:' \\1.,,1 tht'
<br />Boi'k\ .\\.'lllltaJII ('otlllrlt'lllnl ] Ji,idt- in Colnrad\, and
<br />\\\''';mng j',rm'i Ih.. \\I'-.It'rn huundar\ Ea.;tward,
<br />!<",Ihdl" and JlIJ.:h pJaIll" an' dH' prt'd"mllHlH' land
<br />I"nn.~. TIlt' :-.andllJlI It'rr,lln III Wl''iIl'Tn ~ebra"ka With
<br />it:-. l<1tJ.:t' rilJ1dH'~ I" in il",-II H lItliqw' clf1~a wllhlfl thl'
<br />.\li....'H1ri HI\t'r ha"ln. ('t'!llral illld t'a-.tt'rn 't'I)ra"ka
<br />"11 tlw uthr-r hand I" all an'a "l intt'tbin' agrit'llltural
<br />land II"!' wult l"l,rn the I'rt'dlllllll1atl' I'rop. Tht-' ...111"
<br />Ila"lll "In'\t'hl'" ah"lll lil1l1 milt,,- ill Ihl' .'a"t,\\<'.;1 di-
<br />n'I'IIOll ,md ahulIt ;;1111 milf'''. at 1(" wid..,.t pOlnl, in the
<br />north ,H1(1 ",,\llh din'('!HIIl.
<br />
<br />t ;r,,"nd wal,'r i.. ,til ,'xtf.'llLl.h importanl ~ouri'e 01
<br />\\al,'r ..llJlph in I hl.....\Jhh;lSlt1 TfH' glgantil' High
<br />I'laill~ A'-I\1I[\'T (I'\'t'h tllll"l III ~t'hra"ka a" \\l'1I ;1,. pitrt
<br />"Illw ,.uhl'il"lIl Itl \\'''''llIlllg. ('"l,'rad" and "';.)uth I)a.
<br />k"la. 1-::\11'11"1\(.' dl,\t:l"plllt'llt III I!ftlllnd watt'r, a" dl'-
<br />-'l'rillt'd lall'r. ha.. "cnlfft.d III lhl,. ..\Jbha"lll.
<br />
<br />A" ran II.' "XI,..('\t'lllIl;HI an'<1 with lhi" r1i\t-'r...' I,'.
<br />1"'J.:raph~, "ur!;l\'e \\alt'T "upplll''' ;1 ft. highly \anahl{'
<br />;H'ro~." tht' ,.uhi>,t...il1 [11 Ih., \\t'..l nlnotl Ir(llll \\Inlt-r
<br />,.nll\\ lllt'1t prundt.,. tll<' nwjOtll\ "I tilt' watt.t ~uppl.\'.
<br />..\l'f"-''' tht' h,l'-m lfw dr~ t'1l1l11lll;'nlal dimatl' pro\'idl'"
<br />lr"llI all"lll II; II) :!" i,wh"" llwan ;I!lnu;ll prh'ipJt;uil,n.
<br />wilh lltt. ..a~t,'rn ..i<ll'I,1 tb" ha..in [t",,,,\'ing thl' ltig-h,'r
<br />pn'llJlltatl,m rat....
<br />
<br />FOf thi.. -'llhhllil-.m. tIlt" point "..ll-I'(('(1 a~ tlw ..Ilrl,h'e
<br />W;Jlt'r IHlllll'\\ P"llll \\a.. tht' t ';-;t;;-; g:!)::I' Illi'ill,.,r,OIl,
<br />pjane Hi\t-'r ;It !.1l111..;\ilI,., '"hra"ka. The dramag,'
<br />an',l ah,,\[, that IHJlIlI h t1pprIlXlma1t'l~ -;,',.....(111 "ljU<lfl'
<br />1m I..", F"r lhl' I'ltj t" 1~17__ Jlt'nud of recurd, lht' 11\-
<br />...r;lgl' ren~f{h,d -'lrt';Hllll"w .11 that pOint Wi\"; !-i.ll.1I1
<br />ct,,"., Dr I I million ;urt'-Iet;'t annually. Fur lhl' :'\ioh.
<br />rara HI\t'r, lilt' P"lnt ..t.lt,t'l(-d ,;.. tIlE' ..urlal"e \\1llt"r !lUl.
<br />111'1), point wa~ lilt' l''''(;S gaJ.:t' (lli..ll,-,(IOIl. ;\inhrara
<br />HI\t'r nt'M :-'P"fH'..r. \:t.hr;l"ka The draina~t' an'a
<br />.lh.,\t' that !Jlllnt I' ;lflPfl)Xllllatl'ly 1:!,ll1tl ...quilrf' mil.."
<br />For Ihe I~llj III 1:1";.__ I','ri..d of rf'\'llrn. the aHra~e
<br />r;'\'t'rdt'd ,.In'dllltlll\\ 'II Ihal p\)lnl 1,\;1'- l-ij,n ,'l....., or
<br />.11111111011 a,rt"!l't'! allllualh
<br />
<br />,\ ll\Jmlwr <11 projt.(.t... han' ht-'t'1l d..\t.loped in Ihi'
<br />Culorado part Illlht. _uhh;I_111 II,r th.. nll'pnrt 01 water
<br />
<br />tu tht;' ,-uhha..iJl The gent'Tal [ol"ati"n "lth,,:-.e projects
<br />aft' ,.hown on Fif,"llfe ;~!-..
<br />
<br />Tht' Little "';nJlh Hi\'t'r dlH'r"ion import" water
<br />Ir"lll Ih" ('oloradt.l Hi\l'T Ha._lIl to CheY't.>nn{', Wyo-
<br />mIng Annual import" "ince 191i.1 hanO' ranged from
<br />ab"ut 1.:l!lO 1" !l.r,on ljnt'.let't per ~'ellr, FiJ{Ure :.H( The
<br />(;rand Hi\'..r Ditch h,b IlpN<iten fl\t'f tht' f'ntirt' 19H
<br />to 19,.... "ltldy perl"d. Thi" I);I('h impt.rts watN from
<br />trihuwrit'" 10 tht' nllrth fork "I Iht' luloradll f{i\'er to
<br />the \.;1 f'oudre /,;j'" rn'ek, Jl trihutary 10 lh.' ral.he
<br />La I'''udn' Hin.r in ('"lurad'l. ]lIIport.. ll\'('r th(' :).'1 Y('ilr
<br />pl'fi"d ha\1: rarWl'd lr(llll al1,)\1I 9/)011 tll ahout ~/U)OO
<br />.Int'-Ih-t pt'f ~"i-lf. Fil.'llre10.
<br />
<br /> Figure 39
<br /> Annual Water Import
<br /> Little Snake River Diversions
<br /> to Cheyenne Water Supply, Wyoming
<br /> 70.000
<br /> 65000
<br /> 6(}.000
<br /> 55000
<br /> 50,000
<br /> 45.000
<br />0 40,000
<br />0
<br />, 35.000
<br />~
<br />" 30.000
<br />.
<br /> 25 000
<br /> 20 000
<br /> 15000
<br /> .0000
<br /> 5000
<br /> 0 -~
<br /> '5 50 55 60 65 70 15
<br /> Yea'
<br /> Figure 40
<br /> Annual Water Import
<br /> Grand River Ditch. Colorado
<br /> 70000
<br /> 65 000
<br /> 60000
<br /> 55.000
<br /> 50.000
<br /> .:5000
<br /> ':0,000
<br />, 35.000
<br />.
<br />" 30.000
<br /> 25 000
<br /> 20.000
<br /> 15,000 L_
<br /> :0000
<br /> :'000
<br /> 0 -----...... - #
<br /> ':S 50 55 60 65 70 15
<br /> Y('a'
<br />
<br />;~9
<br />
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