PO Box 60400
Boulder City, NV 89006
Established in 1902, the Bureau of Reclamation is best known for the dams, powerplants, and canals it constructed in the 17 Western states throughout the 20th Century. These water projects led to homesteading and promoted the economic development of the West. Reclamation has constructed more than 600 dams and reservoirs, including Hoover Dam on the Colorado River and Grand Coulee on the Columbia River. The bureau is organized into six regions: Columbia-Pacific Northwest, California-Great Basin, Upper Colorado Basin, Lower Colorado Basin, Missouri Basin, and Arkansas-Rio Grande-Texas Gulf. Administratively, Hoover Dam is a part of the Lower Colorado Dams Office (LCDO) of the Lower Colorado Basin Region.