Gateway Yard is a major freight facility in the East St. Louis terminal district, a region shaped by industrial rail traffic, river commerce, manufacturing, and freight interchange across the Illinois side of the St. Louis metro area.
The facility is known as Alton & Southern’s Gateway Yard and is operated by Alton & Southern Railway. Alton & Southern is wholly owned by Union Pacific but continues to operate as a separate railroad company.
Gateway Yard sits east of Interstate 255 and north of St. Louis Downtown Airport, within a dense freight corridor serving chemical, petroleum, metals, manufacturing, and other industrial customers throughout the St. Louis region.
The yard’s role is tied to switching, classification, locomotive movement, railcar handling, and terminal service.
These operations make Gateway Yard a central part of the region’s freight network rather than a dormant or limited-use rail property.
Gateway Yard’s history is best understood through Alton & Southern’s growth from an industrial rail line into a major terminal and switching railroad.
That development connects the yard to more than a century of industrial freight activity in East St. Louis and the surrounding region.
History of Gateway Yard
The clearest way to describe the history of Gateway Yard is through the history of Alton & Southern.
Alton & Southern says it was founded in 1910, and both company and historical sources explain that the railroad grew from an industrial line into a broader terminal and switching railroad in the East St. Louis area.
Public historical sources then describe the later development of Gateway Yard itself as part of Alton & Southern’s expansion into a larger terminal role in the 1960s.
The timeline of Gateway Yard includes:
- 1910: Alton & Southern says it was founded in 1910, when the Aluminum Company of East St. Louis created its own line to improve rail access.
- 1910s to 1920s: Historical sources say the railroad expanded across the east side of the St. Louis metro area and developed into an increasingly important terminal and switching operation.
- 1960s: Public historical sources say Alton & Southern embraced its larger terminal role by building a hump and expanding Gateway Yard.
- 1968: Historical summaries say Alcoa sold the railroad to Missouri Pacific and Chicago & North Western, after which it continued as the reorganized Alton & Southern Railway.
- 1982 and after: Union Pacific acquired the Missouri Pacific share, and by 1996 Alton & Southern became wholly owned by Union Pacific while remaining a separate railroad.
- Current era: Regional freight sources identify Gateway Yard as a major Alton & Southern yard in East St. Louis, and Alton & Southern continues to describe itself as a key switching railroad in the region.
What Railroad Companies Have Operated at Gateway Yard?
The railroad company most directly associated with Gateway Yard is Alton & Southern Railway.
It is the principal operator of the yard today, and public sources consistently identify Gateway Yard as the Alton & Southern yard in East St. Louis.
The operator chain also includes the industrial owners and later railroad owners that controlled Alton & Southern over time, especially Missouri Pacific, Chicago & North Western, and later Union Pacific through ownership of Alton & Southern.
Railroad companies tied to Gateway Yard include:
- Alton & Southern Railway — the principal and current operator of Gateway Yard.
- Aluminum Company of America / Alcoa interests — the industrial origin of the line that later became Alton & Southern.
- Missouri Pacific Railroad — a later owner of Alton & Southern.
- Chicago & North Western Railway — a later co-owner of Alton & Southern.
- Union Pacific Railroad — the current parent owner of Alton & Southern.