The Salem-Swedesboro route, known locally as the Salem County Branch Line, was originally part of the Salem Railroad (later the West Jersey and Seashore Railroad), and subsequently became the Salem Secondary Track on the Pennsylvania-Reading Seashore Lines (PRSL). PRSL was acquired by Conrail in 1976, and the Salem branch was sold by Conrail to the Salem County government in 1985. SRNJ contracted with the county in 1995 to take over operations on the route (plus a one-mile spur in Salem) from the West Jersey Railroad Co. which was awarded the initial contract by the county in 1988. Between 2009 and 2012 U.S. Rail Corporation operated the Salem line. In 2012 the county reassigned the contract to SRNJ.