Seaboard System Railroad

Seaboard System Railroad

A Seaboard freight train crosses the James River at Richmond, Virginia, in October 1985.
Overview
Headquarters	Seaboard System Railroad Building, 500 Water Street, Jacksonville, Florida
Reporting mark	SBD
Locale	Southeastern United States
Dates of operation	December 29, 1982 (1982-12-29)–July 1, 1986 (1986-07-01)
Predecessors	Seaboard Coast Line Louisville and Nashville Clinchfield Railroad Georgia Railroad Atlanta and West Point Railroad Western Railway of Alabama
Successor	CSX 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.