ILLINOIS'S INTERLOCKINGS

TERMINAL RAILROAD ASSOCIATION OF ST. LOUIS

Illinois Transfer Subdivision

Double track line.


SH TOWER (Madison)
Tower listed with Terminal Railroad Association (Merchants Subdivision)

CP JCT.
Electric interlocking installed around 1970's
Closed 1987

Crossing with Nickel Plate Cloverleaf District and paralleling Illinois Terminal.

WILLOWS
Tower listed with Pennsylvania Railroad

ILLINOIS TRANSFER JCT.
Tower listed with Louisville & Nashville

S TOWER
Mechanical interlocking installed 1902
Closed 1976

Crossing with Southern Railway St. Louis Division.

VALLEY JCT.
Electric interlocking installed around 1906
New electric interlocking installed 1938
Closed 1987

Junction with MacArthur Subdivision, and with Missouri Pacific Chester Subdivision and CN former Illinois Central St. Louis Subdivision, and Alton & Southern. The new interlocking installed 1938 accommodated the addition of the MacArthur Subdivision.