State Line Tower was a major railroad interlocking tower built in 1897 by the Chicago & Western Indiana railroad. It straddled the Illinois-Indiana state line in Hammond, Indiana.
Image info: Top, a view of State Line Tower in 1986. [Karl Miller]. 2nd image, a 1962 image of a Monon passenger train approaching the diamond at State Line tower. [Ted Boraleski]
The operator at this tower controlled one of the country's most complex mechanical interlocking that had a 224-lever machine which managed the lines of the Erie, Monon, Wabash, C&O, B&OCT and the IHB.
1897. Tower is installed here. [GGAI]
2000. August. The tower is closed and demolished two months later.
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