Search for all of "Ceremonies", all of "Six Companies -- Employees", all of "Construction Equipment"

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Commemoration of the pouring of the second millionth cubic yard of concrete in Hoover Dam Hoover Dam construction workers observe as Six Companies officials stand in the construction site by a concrete pouring bucket which bears a sign reading: "United States Dept. of Interior, Bureau of Reclamation, Boulder Canyon Project. Pouring 2nd millionth cu. yd....

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