Colorado River Rights By hreety8 Nov 24, 1922 The Colorado River Compact Dec 17, 1924 Protection and Development of the Lower Basin Aug 18, 1931 The Boulder Canyon Project (Hoover Dam) Mar 31, 1932 Illustrated Lecture on Boulder Canyon Project (Hoover Dam) Feb 3, 1944 Utilization of Waters of the Colorado Rivers and Tijuana Rivers and of the Rio Grande Apr 11, 1956 Colorado River Storage Project Mar 9, 1964 Arizona vs California Sep 30, 1968 Authorization of the construction, operation, and maintenance of the Colorado River Basin project, Jun 8, 1970 Criteria for Coordinated Long-Range Operation of Colorado River Reserviors Aug 30, 1973 International Boundary and Water Commusion United States and Mexico Jun 24, 1974 Colorado River Basin Salinity Control Act