Public domain
Tennessee Valley Authority (TVA). Watts Bar Dam hydroelectric plant. Switchyard at TVA's hydroelectric plant at Watts Bar Dam on the Tennessee River. On the right is line of 161 kilowatt, 1200 ampere oil circuit breakers. Located 530 miles above the mouth of the Tennessee River, the dam has an autho
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Credit lineTennessee Valley Authority (TVA). Watts Bar Dam hydroelectric plant. Switchyard at TVA's hydroelectric plant at Watts Bar Dam on the Tennessee River. On the right is line of 161 kilowatt, 1200 ampere . 1942-01-01. Palmer, Alfred T., United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.