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.
Click for Google Map of Cook County/Far South
JAY TOWER (Chicago Heights)
Tower listed with Elgin Joliet & Eastern