Seaboard System Railroad

Seaboard System Railroad
A Seaboard freight train crosses the James River at Richmond, Virginia, in October 1985.
Overview
HeadquartersSeaboard System Railroad Building, 500 Water Street, Jacksonville, Florida
Reporting markSBD
LocaleSoutheastern United States
Dates of operationDecember 29, 1982 (1982-12-29)–July 1, 1986 (1986-07-01)
PredecessorsSeaboard Coast Line
Louisville and Nashville
Clinchfield Railroad
Georgia Railroad
Atlanta and West Point Railroad
Western Railway of Alabama
SuccessorCSX Transportation

The Seaboard System Railroad, Inc. (reporting mark SBD) was a US Class I railroad that operated from 1982 to 1986.

Since the late 1960s, Seaboard Coast Line Industries had operated the Seaboard Coast Line and its sister railroads—notably the Louisville & Nashville and Clinchfield—as the "Family Lines System". In 1980, SCLI merged with the Chessie System to create the holding company CSX Corporation; two years later, CSX merged the Family Lines railroads to create the Seaboard System Railroad.

In 1986, Seaboard renamed itself CSX Transportation, which absorbed the Chessie System's two major railroads the following year.