Welcome to the Bureau of Reclamation’s Lower Colorado Region
Managing the Lower Colorado River and water resource projects and programs in Arizona, southern California and southern Nevada.
The Bureau of Reclamation’s Lower Colorado Region serves as the "water master" for the last 688 miles of the Colorado River within the United States on behalf of the Secretary of the Interior. We also maintain Hoover, Davis and Parker Dams, annually measure and account for the water’s use, and maintain the river channel and protective levees.
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Updated: May 20, 2015