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This construction on hoover dam in 1931. The project employed over 21,000 workers. , one of the largest manmade structures in the world when it opened in 1936. It was completed two years ahead of schedule. Next, 1955 department of the interior film about the planning and the building of hoover dam. The story explains the engineering feat necessary for construction and promotes economic and recreational benefits provided by the structure. In 1930, president herbert hoover, for whom the dam is named, signed the bill to get it started. There was a combine of six Major Construction firms and men and machines went to work to build this dam of on president s its size. A modern Civil Engineering wonder. Reclamation engineers rushed to completion specifications and design drawings. The dam site completed their surveys and investigations. The thunder of mans determination to dock or the Colorado River reverberated canyon the sheer black is construction got underway. The first major task was to

United statesRock damEdgar hooverWalter cronkiteHerbert hooverJohn dillingerNelson alvinLas vegasHoover damMajor constructionCivil engineeringColorado riverMajor taskBlack canyonConcrete damFirst time