1937. The road was built on the right-of-way of the Florida East Coast Railway Mayport Branch (Jacksonville and Atlantic Railroad) to relieve traffic on the parallel Atlantic Boulevard (pre-1945 State Road 140, now State Road 10). Construction began before World War II but was suspended between fall 1941 and 1945. After the renumbering, it was reassigned to SR 212, and dedicated December 17, 1949, along with the B.B. McCormick Bridge over the Intracoastal Waterway. Major intersections References Roads in Jacksonville, Florida Roads in Duval County, Florida U.S. Route 90 Streets in Florida