CHICAGO'S ACTIVE INTERLOCKING TOWERS
Manual interlocking towers still control the signals and switches at many locations in the Chicago area.
CANADIAN NATIONAL
West Chicago - crossing with UP (ex-C&NW)
CP RAIL (SOO LINE)
Tower B-17 (Bensenville) - west end Bensenville Yard
Tower Photos (former Milwaukee Road)
METRA
Tower A-2 (Western Ave.) - crossing with UP
16th Street - crossing of Rock Island District with CN (ex IC)
Blue Island - Junction on Rock Island District
Tower Photos (former Milwaukee Road)
Tower Photos (former Rock Island)
Tower Photos (former Illinois Central)
NORFOLK SOUTHERN
Cummings Bridge - drawbridge over Calumet River
UNION PACIFIC
Lake Street - controls Metra/North Western Station
CY Tower (Clybourn) - junction between ex-C&NW lines
Tower Photos (former Chicago & North Western)
Miscellaneous Tower Photos
Not included are certain drawbridges, where a bridge tender is responsible for little more than the bridge itself. Also not included are towers which strictly control trackage within a freight classification yard.