Seaboard System Railroad Seaboard System Railroad was created in 1982 when CSX Corporation merged its subsidiaries Seaboard Coast Line and Louisville & Nashville. In 1985, Seaboard System in Georgia consisted of the former lines of Seaboard Coast Line, L&N, Georgia Railroad, Atlanta & West Point Railroad, and Gainesville Midland Railroad. The Seaboard System name lasted only four years. In mid-1986, it became CSX Transportation. Abandonments: Athens-Union Point (part of former Georgia Railroad) abandoned 1984. Macon-Milledgeville (part of former Georgia Railroad) abandoned 1985.   Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home