The route of the Alabama Railroad was originally constructed over several years (between 1880–1901) as the Pensacola & Selma Railroad and quickly became a part of the Louisville & Nashville Railroad network. The original line proceeded north from Corduroy, Alabama to Selma, Alabama. That portion of the line was abandoned by the Seaboard System prior to the merger with CSX in 1986. There was also a L&N branch that went to Camden from a junction just northeast of Corduroy that was abandoned prior to the merger into the Seaboard System in 1986. The remainder of the line north of Peterman, Alabama was abandoned approximately 1994 to include an 800+ foot tunnel built in 1899 located at Tunnel Springs, Alabama. The ALAB connects with CSX Transportation at Flomaton, Alabama. The railroad serves three industries located in Monroeville, Alabama and stores railcars for other railroads. The ALAB serves Temple Inland with outbound shipments of particle board and veneer, a cement powder transload operated by Gate Precast, and Harrigan Lumber after its re-opening in 2010. The railroad operates three EMD GP20 locomotives on a bi-weekly basis.