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INTERLOCKING TOWERS

CHICAGO'S ACTIVE INTERLOCKING TOWERS

Manual interlocking towers still control the signals and switches at many locations in the Chicago area.

U. D. Tower in Joliet.

State Line tower in Hammond, Indiana. (since closed and demolished)


AMTRAK/CHICAGO UNION STATION

Lake Street - controls Union Station trackage

BURLINGTON NORTHERN SANTA FE

Corwith - crossing of Corwith Yard leads with CN/IC

CANADIAN NATIONAL/ILLINOIS CENTRAL

Blue Island - crossing with CSX, IHB

CP RAIL (SOO LINE)

Tower B-17 (Bensenville) - west end Bensenville Yard
Rondout - junction with Metra/crossing with EJ&E

ELGIN JOLIET & EASTERN

Barrington - crossing with UP (ex-C&NW)
West Chicago - crossing with UP (ex-C&NW)
Bridge Jct. (Joliet) - drawbridge over Des Plaines River

INDIANA HARBOR BELT

Dolton - crossing of IHB, CSX, UP
Calumet (East Chicago) - crossing of Kankakee Line with CSX

METRA

Tower A-2 (Western Ave.) - crossing with UP
Tower A-5 - junction between Milwaukee District lines
16th Street - crossing of Rock Island District with IC
Gresham Junction - Junction on Rock Island District
Blue Island - Junction on Rock Island District
Joliet U. D. Tower - crossing of BNSF, SP (ex-GM&O), Metra
67th Street - junction on Electric District, IC

NORFOLK SOUTHERN

Hick (Indiana Harbor Canal) - drawbridge and junction on Chicago Line
Cummings Bridge - drawbridge over Calumet River

UNION PACIFIC

Lake Street - controls Metra/North Western Station
CY Tower (Clybourn) - junction between ex-C&NW lines


Not included are certain drawbridges, where a bridge tender is responsible for little more than the bridge itself.