Now owned by Union Pacific.
Mostly a double track line with single direction ABS, with segments receiving CTC in later years.
DOLTON
Tower listed with Pennsylvania Railroad
YARD CENTER
Interlocking installed 1906
Between two parts of Dolton Yard.
THORNTON JCT.
Tower listed with Grand Trunk Western
CHICAGO HEIGHTS
Mechanical interlocking installed 1892
Electric interlocking installed 1901
Replaced with automatic interlocking around 1960
Former crossing with New York Central Joliet Branch, abandoned late 1970's.
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JAY TOWER (Chicago Heights)
Tower listed with Elgin Joliet & Eastern
HJ TOWER (Chicago Heights)
Interlocking installed 1906
Closed by 1940's
Likely south end of Heights Yard.
STEGER
Existed around 1950's
Little is known about this interlocking.
NE TOWER
Interlocking installed 1906
Closed by 1950's
Likely north end of an old industrial park.