Now owned by Norfolk Southern.
STARNE
Tower listed with Illinois Central
EAST SPRINGFIELD
Tower listed with Chicago & Alton
SHOPS (Springfield)
Tower listed with Chicago & Illinois Midland
SPRINGFIELD (Tenth Street)
Tower listed with Baltimore & Ohio
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ILES
Mechanical interlocking installed 1892
Closed 1994, demolished
Crossing with Union Pacific former Alton.
ILES (Jess)
Mechanical interlocking installed 1913
Interlocking actually likely operated by Illinois Terminal. Former crossing with electric Illinois Terminal line, abandoned 1969.
CURRAN
Mechanical interlocking installed 1894
Former crossing with Chicago Peoria & St. Louis Railroad, abandoned early 1940's.
JACKSONVILLE JCT.
Mechanical interlocking installed 1893
Closed 1990's
Crossing with Burlington Beardstown Subdivision, and former crossing with Chicago & Alton Jacksonville Line, abandoned 1980, and Chicago Peoria & St. Louis Railroad J&H Line, abandoned 1930's.
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CHAPIN
Automatic interlocking installed 1927
Former crossing with Burlington Route Beardstown & St. Louis Subdivision, abandoned 1983.
BAYLIS
Mechanical interlocking installed 1941
Little is known about this interlocking.
HULLS
Automatic interlocking installed 1936
Former crossing with Burlington Route Quincy & East Hannibal Subdivision, abandoned 1978.
Decatur-Springfield-Jacksonville
Installed 1944, control machine in dispatcher's office in Decatur
Completed 1945
Simplified CTC installation.