Home›Hydroelectric Dam Project›Completion Era›By CenturyBrowse ByBy CenturyFactsCompletion EraSourcesComments (0)Reader Challenges (0)FactsComparisonEra of EmergenceWell-attested1931 1Completion Era20th centuryCompletion Era4 entries21st centuryCompletion Era2 entriesSources1. Hoover Dam - Wikipediatier 2WikipediaConstruction, Six Companies Inc. 1931 startQuote, Construction, Six Companies Inc. 1931 startThe winning bid to build the dam was submitted by a consortium named Six Companies, Inc., which began construction in early 1931.View the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.