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WSPC05386
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Last modified
7/29/2009 11:11:03 AM
Creation date
10/9/2006 5:11:44 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8044
Description
Section "D" General Studies - Compacts - General Writings
State
NE
Date
2/16/1951
Author
Royce J Tipton
Title
Interstate Water Compacts - Interstate Water Compacts and their Relationship to Basin Development
Water Supply Pro - Doc Type
Report/Study
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<br />,\, <br /> <br />OJJ393 <br /> <br />At the same t me, on the Colorado River, water uses in Mexico were in- <br />creasing rapidly. This ,s entirely possible and feasible from Mexico's stand- <br />point. After Hoover Da went into operation, the flow of the Colorado River was <br />largely equated for the urpose of generating hydroelectric energy. The develop- <br />ment belmv that dam i the United States for ccnsumptive use purposes had not <br />nearly re~Ghed the 10we~ b~si~ ccmpact allc~~tio~; h6nce, ovme 8,00J,000 to <br />10,000,000 acre-feet of equated water per year was, and is now, flowing into the <br />Gulf of Lower California. The Colorado River runs along the western edge of the <br />very fertile Mexicali Valley, and essentially is on the rim of a saucer, making it <br />easy for !!exico to divert water from the river to the Mexicali lands. <br /> <br />Water uses were increasing in Mexico Qnder the Alamo Canal, and some <br />"later was being pumped from the river to serve more remote areas. <br /> <br />Treaty negotiations were finally started in El Paso, Texas in the fall <br />;f 1943. They were carried on on the basis of facts which had been gathered by <br />v~gineers. The negotiations themselves were carried on largely by engineers. <br />Ii nally, the Mexican Water Treaty of 1944 was consilla~ated and became effective in <br />1945 upon its ratification by both countries. This treaty permitted Mexico to <br />build certain works on the lower Colorado River and provided for the International <br />Boundary and Water Corrunission, the treaty having changed the name of the Commission, <br />to construct certain works on the lower Rio Grande consisting of regulatory reser- <br />voirs and diversion works for the benefit of the two countries. The Falcon dam and <br />reservoir and power plant are nOw under construction. The location of that dam and <br />reservoir is shew,m on Exhibit No.2. <br /> <br />The fillzalduas dmn on the lower river is being designed and is in the <br />process of being agreed to by the two countries by a Hinute. This will be a <br />diversion dam for the l'lexican Anzalduas 9,000 second-foot canal, which is nearing <br />completion and which will divert most of the Rio Grande water allocated to Mexico. <br />it can be used to divert water by gravity to at least 500,000 acres of land in the <br />United States, and will be used to divide flood flows between various flood channels <br />of the lower Rio Grande flood control project. <br /> <br />There is sho,<n on Exhibit Ko. 2 the location of the proposed Garza dam <br />and reservoir which, if agreed upon, will be utilized to re-regulate power releases <br />from Falcon reservoir in order to reconcile tne use of lower Bio Grande water for <br />the generation of hydroelectric energy and the use of the water for irrigation pur- <br />poses, It will also permit the use of Falcon power plants for peaking purposes. <br /> <br />Additional dams and reservoirs on the lower Rio Grande in what is known <br />as the Big Bend region are currently being investigated. The location of some of <br />the most promising of such dams and reservoirs is sho'ID on Exhibit ho. 2. <br /> <br />The above is an outstanding example of two countries under treaty <br />arrangement, through an international bOdy, designing and supervising the construc- <br />tion of major projects which will make more useable a common water resource for the <br />good of the two countries. Probably when this work is finished, the projects will <br />represent the most important water use facilities ever constructed by two or more <br />countries for their mutual benefit. <br /> <br />The water supplies of the lower Rio Grande basin could not have been <br />developed logically "dthout 2 treaty between the United States and i!exico. <br /> <br />On the Colorado River, !Iexico has completed the /ioreles diversion <br />structure which will divert a major portion of the water of the Colorado River <br />allotted to her by the Mexican Water Treaty. During that period when surplus water <br /> <br />-11- <br />
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