OCR Text |
Show enough along with construction to have the first bucket of concrete poured on bedrock during an official ceremony on June 17, 1960. Following the ceremony the contractor continued to pour and by the end of September had about 140,000 cubic yards of mass concrete in the dam and foundation of the power house. Prime contract construction is about 35 percent completed. Some difficulties were encountered in the functioning of the large and complex batching plant, and the forming and concrete placing operations in the lower odd-shaped blocks near bedrock were slow. The rate of placement of concrete has been increased and the contractor is confident that he will be able to meet the schedule for the closing of the gates and initial storage of water in Lake Powell in November, 1962. The first electric generator is scheduled to be in operation in June, 1964. 2. Flaming Gorge Storage Unit The Flaming Gorge Dam and Reservoir will be located on the Green River in Northeastern Utah, 40 miles north of Vernal, Utah, and 32 river miles downstream from the Utah-Wyoming state line. The dam will be a concrete thin-arch structure rising 445 feet above the river. The reservoir will have a capacity of 3,789,000 acre-feet and will extend upstream 94 miles, nearly to the town of Green River, Wyoming. The power plant will have an installed generating capacity of 108,000 kilowatts. Construction Activities Construction of Flaming Gorge Dam was more than 30 percent completed by the end of the water year, September 30, 1960. The contractors' aggregate and batch plants were put into operation after an intensive erection schedule during the summer months. The first concrete was placed in the tailrace retaining wall early in September and in the dam proper on September 21, 1960 with placement to continue until freezing conditions necessitate shutting down the operations. While the contractor is behind schedule this fall, he has placed himself into position for full concrete placement as early next spring as the weather will permit. Construction is expected to be on schedule by Autumn 1961. Winter operations primarily will consist of excavating and lining the inclined spillway tunnel. 3. Navajo Storage Unit The Navajo Dam will be located in Northwestern New Mexico on the San Juan River, 34 miles east of Farmington and 31/2 miles downstream from the confluence of the Los Pinos and San Juan Rivers. The dam will be a rolled earth-fill embankment structure. The reservoir 42 |