Interstate 459 forms a beltway around the south side of Birmingham between I-59/20 at Bessemer and I-59 near Trussville. The freeway functions as a bypass for I-59/20 west to Tuscaloosa and Meridian, Mississippi, I-20 east to Anniston and Atlanta, Georgia and I-59 north to Gadsden and Chattanooga, Tennessee. Speed limits vary between 65 and 70 miles per hour along the mostly six-lane suburban freeway.
The Birmingham bypass was designated as Interstate 59B in 1958. It was renumbered to Interstate 459 by 1961. Work on the freeway began in 19681. The first section of I-459 opened in 1978 between I-20 and I-59 between Irondale and northeast Birmingham.2 The final portion of I-459, between I-59/20 at Bessemer and State Route 150 in Hoover, opened to traffic in late 1984. The 5.2 mile segment cost $28.7-million to build.2