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Construction began in July 1949; the main structure was completed in April 1954, and deliberate impoundment began on March 8,
1954. In 1966 the reservoir had a capacity of 210,600 acre-feet and a surface area of 7,400 acres at the top of the conservation storage space (elevation 569 feet above mean sea level). The reservoir provided 887,000 acre-feet of flood-control storage capacity. The drainage area above the dam was 3,560 square miles.