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Show The contract has been awarded for a bridge spanning the Colorado River 1,000 feet downstream from the dam site. This bridge, 1,271 feet long, will be a steel-arch structure, 40 feet wide and 700 feet above the river, making it the highest bridge of its type in the world. Its single arch will be 1,028 feet in length, second only to the Bayonne Bridge between Staten Island, New York .and New Jersey. More than 3,500 tons of structural steel, 250 tons of reinforcing steel, and 2,650 cubic yards of concrete will be utilized in its construction. A diversion tunnel through the right abutment of the dam site is under construction. The contract for this tunnel was awarded in October, 1956. Specifications for the dam and power plant will be completed early in 1957. The prime contract for the construction of these two features is expected to be awarded in the spring of 1957. 2. Flaming Gorge 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 miles downstream from the Utah-Wyoming state line. The dam will be a concrete thin-arch structure rising 440 feet above the river. The reservoir will have a capacity of 3,920,000 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 85,000 kilowatts. Construction Activities Construction activities at Flaming Gorge are being conducted from temporary headquarters at Vernal, Utah. Diamond drilling, to determine foundation conditions for final design, is well advanced. Contracts have been awarded for the construction of 0.3 of a mile of new roadway, rehabilitation of seven miles of existing road, and the construction of a timber bridge, 345 feet in length, across the Green River. The Bureau of Reclamation plans to let a contract for the remaining ten miles of the road early in the spring of 1957. After the completion of this stretch, the dam site will be connected by an oiled highway with a railhead at Green River, Wyoming. A Government town will be located on Dutch John Flat about three miles north of the dam. Approach roads from Vernal, Utah, are being improved by the State of Utah and the U. S. -38- |
