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4 I COLORADO RIVER STOllAGE PROJECT , GtEN CANYON' STORAGE UNIT, ARIZONA-UTAH I Glen Canyon! Dam, another ma,jor. structure in the Colorado River storage project; was topped out September 13, 1963, and power production wilLstart there early in fiscal year 1965. The Glen Cll!nyon unit will serve the purposes of river regulation and storage of ~ows of the upper Colorado River and the generation of hydroelectric1Power. 'rhe powerplant will have a nameplate rating of 900,000 kilowatts. Water stored, as in other storage units of the project, will assjst -in complying with, the terms of the Colorado River compact and ~ill make possible the diversion and beneficial use of water on the participating projects. In May 196~, a decision was made ,to resume filling Lake Powell in spite 01 the [unusually low spring runoff conditions. This action will achieve theiobjective 01 gaining minimum operating level at Lake Powell in the shortest practical time. Lake Powell will not be per- mitted to exceed such operating level until releases made through the generators are euflicient to return Lake Mead to elevation 1123, the rated head at fIoover powerplant. i NAVA.TO .STORAGE UNIT, NEW MEXICO The Navajo i Dam has been completed and was dedicated in a ceremony held at the damsite in September 1962. , During the year, additional work has been done by the Bureau and the Corps 01 Engineers in evaluating the potential flood control bene- fits 01 the project. . The Navajo I unit will provide irrigation water by storage 01 the flows of the San Juan River for the 110,630 acre Navajo Indian irrigation proj$ctand the San Juan-Chama project. It will also provide a limi~ed quantity 01 water for a limited time for municipal and industrialluse in northwestern New Mexico. In addition, the project will provide fish and wildlife" recreation, and flood control benefits. Prmbipal leatures 01 the unit are the Navajo Dam and the 1,709,000 acre-foot Navajo Reservoir, TRANSMISSION DIVISION The transmi$sion division includes transmission lines, substations, switchyards, and other lacilit,ies to provide for interconnection of storage projectipowerplants with each other, with participating project power lacilitiesf with other Federal powerplants, and with the electrical facilities of the imaj or non-Federal power systems in, the Colorado River Basin area, so that the greatest practicable amount of firm power and, energy can be! produced and delivered to the load centers for sale. The completedLfacilities will be operated by the Government.