List of Seaboard Air Line Railroad precursors

Below is a list of railroads that were bought, leased, or in other ways had their track come under ownership or control by the Seaboard Air Line Railroad or one of its predecessors.

The Seaboard Air Line Railroad merged with the Atlantic Coast Line Railroad on July 1, 1967, to form the Seaboard Coast Line Railroad.

Predecessor lines

Map of CSX's "A" and "S" lines, inherited from predecessors ACL and SAL, respectively.

The Seaboard main line from Richmond to Tampa, heart of its 2600-mile system in 1900, (today mostly CSX's "S" Line), had been built by the following companies:

Richmond, Petersburg and Carolina Railroad, Richmond, Virginia to Norlina, North Carolina (the immediate predecessor of the SAL)
Raleigh and Gaston Railroad, Norlina to Raleigh, North Carolina
Raleigh and Augusta Air-Line Railroad, Raleigh to Hamlet, North Carolina
Palmetto Railroad, Hamlet to Cheraw, South Carolina
Chesterfield and Kershaw Railroad, Cheraw to Camden, South Carolina
Predecessors of the Florida Central and Peninsular Railroad:
- South Bound Railroad, Camden to Savannah, Georgia
- Florida Central and Peninsular Railroad Northern Division, Savannah to Georgia/Florida state line
- Florida Northern Railroad, state line to Yulee, Florida
- Fernandina and Jacksonville Railroad, Yulee to Jacksonville, Florida
- Florida, Atlantic and Gulf Central Railroad, Jacksonville to Baldwin, Florida
- Florida Railroad, Yulee to Baldwin to Waldo, Florida
- Florida Transit and Peninsular Railroad Tampa Division, Waldo to Tampa, Florida

Acquired lines

In the first decades of the 20th century, Seaboard expanded its holdings by acquiring the following lines, some of which were created by the Seaboard to construct new lines it wished to have.

Acquired by purchase: