Megastructures - Hoover Dam »
Posted by: molnatisi 7 months, 2 weeks agoHistory Construction of Hoover Dam began in 1931, and the last concrete was poured in 1935 , two years ahead of schedule. President Franklin D. Roosevelt dedicated the dam on September 30,1935. The power plant structures were completed in 1936, and the first generator began commercial operation in October of that year. The 17th and final generator
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