Closed North American railroad interlocking towers and cabins

December 31, 1997

This list of closed railroad interlocking towers and cabins was extracted from a list originally compiled for the "Tower Tribute" section in the April, 1995 issue of TRAINS magazine.

The assistance of numerous people is gratefully acknowledged.

As with the list of active towers, this list is organized alphabetically by state, with regional subgroupings as needed. A total of closures follows each state or group heading.

The closures listed are those recorded as having occurred during 1997. For more information about listing criteria, see this list's active tower counterpart.

Corrections and updates may be sent via email. Alternatively, you may submit additional information by post to:

Jon Roma
P. O. Box 2155
Champaign, IL 61825-2155

NOTE: This list and the information contained therein may be freely reproduced or used in printed or electronic form for non-commercial purposes, provided the source is acknowledged and provided that such publication also refers readers to the original list.

Abbreviations denoting type of interlocking machine:
	E	electric (typically GRS model)
	EM	electro-mechanical (mechanical frame in conjunction with separate electrical levers interlocked electrically or mechanically with mechanical frame)
	EP	electro-pneumatic (typically US&S model)
	M	mechanical frame (old ``armstrong'' or ``strong-arm'' levers); presence of pipeline-operated switches, derails, or signals is indicated when known
	R	all-relay machine (includes CTC- and "NX"-type panels and other modern variants)
Abbreviations denoting type of building or structure:
	B	movable bridge cabin, on or next to bridge
	C	cabin
	O	office (e. g., in yard office or depot building)
	T	tower (building with two or more stories)