WSPC00227

• File Number: 8541
• Description: San Luis Valley Project
• State: CO
• Basin: Rio Grande
• Water Division: 3
• Date: 1/1/3000
• Author: Unknown
• Title: San Luis Valley Project Closed Basin Division - 1944-1946 - Synopsis - La Plata Units, Potential Animas-Las Plata Project
• Water Supply Pro - Doc Type: Report/Study

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SllJOPSI$

The La Plat.. t!D1ts .... the fil'lIt stage cievelopmeall of the poteJ1.Ual
An,-...La Plata Projeot in the San JuanD1vislon of the Oolol'allo R1ver.
Some 19,1J.p net a0I'98\.111 Oolorado 8tld 4,e9Q l1et aonl 111 lit...' Huloo have'
bean l1'1'1gllted at 80me tiD!e within l'8OGl1t ~ar.. 8lxty~t1VlJ,yeare: of
l1'1'1gatloa pNottce in the ....a baa proveD that the SOUl, are .11811 ~apt-
e4 to irr1&atlon tarm1ll&' 'file area 11 &rid, cd irrigation ~. nGoessa1'7
fojo eUlloee8M tarm1ng.
Ihm-oft on LaJ'l&t& R1'1l1r oulminates early in the 11'1'1pUdn ...son,
usually about Ife.y 15, and dec11nes rapidly thereat'ter, ~ar&e ebortegel

ooourrl!l& in JIl!!e. July, end August. Dul"1!l& the droU;hil )'eers 19'1 to
i940, IIllDY fal'lllll ,",I'e aband0ne4 and at ODe tlme OVlIr halt of thePopula-
1l1on of the projeot area was reoelv1ug reUet of sane Idnd'. Suppllllllental
water tram otoraae resenolra tor late s_er need.' lINn be provlded lf
tlto lrr1gated area 18 to be euooeeafully tarmed a2ld maintamlld.
Invelltlgatl0D8 of the La !'lata area weN underta. 'b1.tli!t Bul'lI&U
of Reolallla1l1on at: the request of looal water IllI8r8, and in 1941 the
States of Colora4o a2ld New Henoo approved a plan lnvolviDg oonBtructleD
ot re8ervoll'll at LoDg Hollow and Sllate LiD s1 teo to provlde I1lpplomental
watel'! for both unlts. . Subsequent studlelt show an aotive oapaoity of
12,000 aore teet at Long Hollow 110 be more effiolent' tor .the ""tel" sup..
p1:v available. State Line Reservoir wou14 have a oap.,ity,0:'2,000
acr8 feet of whioh 12,000 aON reet ls tor 1rr1gatlon, 15,000 aOl'8 teet
for flood oontrol and 5.000 aON feet tor s11ll cdepcidtlon. Long Hollow
RSl.lsrvolr wou14 provide water tor the Oolorado Unlt aDd Sta~ L1ne Ressr-
volr for the Hew Mexloo trnl t .

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