The Beltline is a western bypass located completely within the city limits of Decatur, Alabama. It was built as an extension of Alabama State Route 67, and is the northern terminating end of the highway. It is currently the second most heavily traveled roadway in the Decatur Metropolitan Area.Built in 1966 to relieve major traffic congestion on 6th Avenue (US 31), which runs down the eastern portion of the city, and serves the northeastern and southeastern regions of town.