ILLINOIS'S INTERLOCKINGS

TERMINAL RAILROAD ASSOCIATION OF ST. LOUIS

Eads Subdivision

Double track line.


BRIDGE JCT.
Tower listed with New York Central

Q TOWER (East St. Louis)
Mechanical interlocking installed 1883
Electric interlocking installed 1903
New tower constructed 1961
Closed after 1980's

Junction of Union Pacific former Chicago & Alton and New York Central paired track, with North Approach route of MacArthur Subdivision. And former crossing of paired track with Eads Subdivision trackage serving Relay Station, and using Eads Bridge.

MS OFFICE
Electric pneumatic interlocking installed
Closed 1956, remotely controlled from ID Tower

Crossovers at west end Eads Bridge.

X OFFICE
Electric pneumatic interlocking installed
Closed 1956, remotely controlled from ID Tower

Switches south and west of tunnel, near present location of Busch Stadium.

ID TOWER
Electric interlocking installed 1956
Closed 1990

Enabled consolidation of control of interlockings at MS Office, X Office, and Tower 3.

TOWER 3 (14th Street)
Tower listed with Terminal Railroad Association (Merchants Subdivision)