In 1928, Moore and Senator Claude A. Swanson introduced identical bills (S.1369 and H.R. 4625) to build a memorial highway from Arlington Memorial Bridge to Mount Vernon at a cost of $4.5 million. The Washington Bicentennial Commission would oversee the project, with support from the United States Department of Agriculture with surveys, architectural and engineering plans, land acquisition, construction, etc. The bicentennial commission was also authorized to determine the route. Proponents of the ridge-top route pressed their case, but Moore pointed to the 1927 BPR report, as expert proof that the river's-edge route was preferable. Support for the Moore-Swanson bill also came from President Calvin Coolidge, the bicentennial commission, the US Senate, the Bureau of the Budget, the Daughters of the American Revolution, and the George Washington Masonic National Memorial Association. S. 1369 passed the Senate on March 6, 1928. (No vote totals were reported.)