Main Line (Atlantic Coast Line Railroad)

CSX A Line
CSX A Line near Moncks Corner, South Carolina
Overview
Other name(s)	Atlantic Coast Line Railroad Main Line
Status	Operating
Owner	Atlantic Coast Line Railroad (1900-1967) Seaboard Coast Line Railroad (1967-1986) CSX Transportation (1986-present)
Termini	Richmond, Virginia Port Tampa, Florida
Technical
Line length	890.1 mi (1,432.5 km)
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	No
Signalling	Centralized traffic control
Route map The CSX A Line (red) in relation to the S Line (blue)

The CSX A Line forms the backbone of the historic Atlantic Coast Line Railroad Main Line, the backbone of their network in the southeastern United States. The main line runs from Richmond, Virginia to Port Tampa just southwest of Tampa, Florida, a distance of nearly 900 miles. Along its route it passes through Petersburg, Rocky Mount, Florence, Charleston, Savannah, Jacksonville, and Orlando. With the exception of a short 61-mile segment in Greater Orlando (which is now state-owned), the entire line is owned by CSX Transportation.