The Seaboard System Railroad, Inc. was a short-lived former US Class I railroad that was created after the consolidation of the Family Lines System railroads on December 29,1982. Under the Family Lines era, the shared common ownership. The Seaboard Systems roots trace back to SCL Industries, a company created in 1968 that combined the SCLs subsidiary railroads into one entity. In 1969, SCL was renamed Seaboard Coast Line Industries, known as the Family Lines System, this entity adopted its own logo and colors, but each railroad maintained its own identity. Over time, this caused confusion among customers, in comparison to the neighboring Chessie System, which had three railroads, the Family Lines had five railroads. In 1971 SCL bought out the shares and made the Louisville & Nashville a subsidiary. On November 1,1980, the holding company CSX Corporation was created after the merger of Seaboard Coast Lines Industries and this now simplified ownership of both the Chessie and Seaboards railroads under one holding company while still keeping their identities separate. On December 29,1982, the Seaboard Coast Line and Louisville & Nashville were merged to form the Seaboard System Railroad and this was the first step under the CSX Corporation holding company to combine all railroads into one railroad. This included the Georgia Railroad, South Carolina Pacific Railway, Louisville, Henderson & St. Louis Railway, Gainesville Midland, Atlanta & West Point Railroad, after the Seaboard System simplified itself as one railroad, it was renamed CSX Transportation on July 1,1986. On April 30,1987, the Baltimore & Ohio railroad was merged away into the Chesapeake & Ohio, finally, on August 31,1987, the Chesapeake & Ohio was merged into CSX Transportation. All the major railroads under CSX Corporation were now one company, even before the creation of the Seaboard System, locomotives began to receive a simplified paint scheme of the Family Lines. However, only the iron-grey, red, and yellow colors were recycled, the first locomotive to be decorated with the new Seaboard System paint scheme was UCETA GP16 #4802 in October 1982. Because the merger did not occur until December, locomotives after October 1982 were to receive the Seaboard System paint scheme with the railroads reporting marks applied. When the merger took effect on January 1,1983. Any new locomotives purchased by Seaboard would be built to meet Chessie specifications, of which only three, EMD SD50, EMD MP15T and GE B36-7, were ordered
A Seaboard freight train crosses the James River in 1985.
The Family Lines logo included the seven systems that were grouped under the name.