The St. Louis Line Subdivision is a railroad line owned by CSX Transportation

CSX Transportation

CSX Transportation operates a Class I railroad in the United States known as the CSX Railroad. It is the main subsidiary of the CSX Corporation. The company is headquartered in Jacksonville, Florida, and owns approximately 21,000 route miles...

 in the U.S. states of Indiana

Indiana

Indiana is a US state, admitted to the United States as the 19th on December 11, 1816. It is located in the Midwestern United States and Great Lakes Region. With 6,483,802 residents, the state is ranked 15th in population and 16th in population density. Indiana is ranked 38th in land area and is...

 and Illinois

Illinois

Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

. The line runs from Indianapolis, Indiana

Indianapolis, Indiana

Indianapolis is the capital of the U.S. state of Indiana, and the county seat of Marion County, Indiana. As of the 2010 United States Census, the city's population is 839,489. It is by far Indiana's largest city and, as of the 2010 U.S...

 west-southwesterly to East St. Louis, Illinois

East St. Louis, Illinois

East St. Louis is a city located in St. Clair County, Illinois, USA, directly across the Mississippi River from St. Louis, Missouri in the Metro-East region of Southern Illinois. As of the 2010 census, the city had a total population of 27,006, less than one-third of its peak of 82,366 in 1950...

 along a former Conrail line, partly former New York Central Railroad

New York Central Railroad

The New York Central Railroad , known simply as the New York Central in its publicity, was a railroad operating in the Northeastern United States...

 trackage and partly former Pennsylvania Railroad

Pennsylvania Railroad

The Pennsylvania Railroad was an American Class I railroad, founded in 1846. Commonly referred to as the "Pennsy", the PRR was headquartered in Philadelphia, Pennsylvania....

 trackage.

At its east end near Avon Yard, the St. Louis Line Subdivision continues through downtown Indianapolis as the Indianapolis Terminal Subdivision. Its west end is near Rose Lake Yard in East St. Louis, where it meets the Terminal Railroad Association of St. Louis

Terminal Railroad Association of St. Louis

The Terminal Railroad Association of St. Louis is a terminal railroad owned by railroads in St. Louis, Missouri which handles traffic through its metropolitan area.-Components:It was founded in 1889 in a deal orchestrated by Jay Gould by:...

. Along the way, the line intersects the Lafayette Subdivision at Greencastle, Indiana

Greencastle, Indiana

Greencastle is a city in Greencastle Township, Putnam County, Indiana, United States, and the county seat of Putnam County. It was founded in 1821 by Scots-Irish American Ephraim Dukes on a land grant. He named the settlement for his hometown of Greencastle, Pennsylvania...

 and the CE&D Subdivision and Danville Secondary Subdivision at Terre Haute, Indiana

Terre Haute, Indiana

Terre Haute is a city and the county seat of Vigo County, Indiana, United States, near the state's western border with Illinois. As of the 2010 census, the city had a total population of 60,785 and its metropolitan area had a population of 170,943. The city is the county seat of Vigo County and...

. Its west end is near the west end of the Illinois Subdivision

Illinois Subdivision

The Illinois Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. states of Indiana and Illinois. The line runs from Washington, Indiana west to East St. Louis, Illinois along a former Baltimore and Ohio Railroad line....

.

History

The St. Louis Line Subdivision was formed from two main lines, joined by a short connecting track in Terre Haute, Indiana

Terre Haute, Indiana

Terre Haute is a city and the county seat of Vigo County, Indiana, United States, near the state's western border with Illinois. As of the 2010 census, the city had a total population of 60,785 and its metropolitan area had a population of 170,943. The city is the county seat of Vigo County and...

. From Terre Haute east to Indianapolis, the Indianapolis and St. Louis Railroad opened in 1870; this became part of the New York Central Railroad

New York Central Railroad

The New York Central Railroad , known simply as the New York Central in its publicity, was a railroad operating in the Northeastern United States...

 through leases and mergers. The line west of Terre Haute was built by the Terre Haute and Indianapolis Rail Road (in Indiana) and the St. Louis, Vandalia and Terre Haute Railroad (in Illinois), and was also completed in 1870. These companies became part of the Pennsylvania Railroad

Pennsylvania Railroad

The Pennsylvania Railroad was an American Class I railroad, founded in 1846. Commonly referred to as the "Pennsy", the PRR was headquartered in Philadelphia, Pennsylvania....

 through leases and mergers.

Both lines became part of Penn Central Transportation

Penn Central Transportation

The Penn Central Transportation Company, commonly abbreviated to Penn Central, was an American railroad company that operated from 1968 until 1976. It was created by the merger on February 1, 1968, of the Pennsylvania Railroad and the New York Central Railroad...

 and then Conrail, which decided to downgrade the PRR's line east of Terre Haute and the NYC's line west of Terre Haute, building a short connection in Terre Haute and forming the St. Louis Line. The line was assigned to CSX in Conrail's 1999 breakup.