Granite Reef Dam ID: 396 | This file appears in: Watering the Desert The Granite Reef Dam was completed in 1908 for the Salt River Project. It replaced an older dam that washed out in a flood. The dam diverts most of the Salt River into the Arizona Canal and Eastern Canal for irrigation and drinking water in metro Phoenix. | Date: 1930 | Source: HAER No. AZ-19-13; Historic American Engineering Record, Library of Congress. | Rights: Library of Congress Download Original File SourceHAER No. AZ-19-13; Historic American Engineering Record, Library of Congress.Date1930RightsLibrary of Congress "Granite Reef Dam" appears in: Watering the Desert