The legislation authorizing construction of the George Washington Memorial Highway is Public Law 493. Its formal title is "An act to authorize and direct the survey, construction, and maintenance of a memorial highway to connect Mount Vernon, in the State of Virginia, with the Arlington Memorial Bridge across the Potomac River at Washington." After the law's passage, BPR issued yet another report advocating the river's edge route. On January 25, 1929, the bicentennial commission decided the highway should follow the river route.