Welcome to Dave Haynes' page of Interlocking Towers

Below are several hand-drawn interlocking tower diagrams, most of which are from the Chicago area in the late 50s and early 60s. A few are from New York and Pennsylvania. Photos are mine unless otherwise identified.

At the end of the diagrams is a list of interlocking tower web sites.

Towers in Indiana and Illinois, mostly near Chicago
Bernice Calumet Clarke Jct Dolton Dyer
East Gary Fort Wayne Crossing Gibson Grasselli Griffith
Hartsdale Hays Hobart BART Hobart HO Indiana Harbor
Ivanhoe Kirk Yard (West Gate) LaCrosse Liverpool Maynard
McCool MC Joliet Monon MS Whiting NI West Chicago
Osborn Porter Rock Island Ship Canal South Gary
10th Street Tolleston Van Loon Wanatah Whiting
Willow Creek        

Towers in New York and Pennsylvania
Athens, PA BD, Binghamon, NY BX, Binghamton, NY FA, Oneonta, NY

Bernice      Click for a Bing or Google map.      Click for a 1949 PRR diagram.



Calumet      Click for a Bing or Google map.      Click for a 1945 PRR diagram.
See Zachary Gillihan's page on the removal of interlocking parts from Calumet tower.



Clarke Jct      Click for a Bing or Google map.      Click for a 1949 PRR diagram.



Dolton      Click for a Bing or Google map..      Click for a 1949 PRR diagram.



Dyer      Click for a Bing or Google map.



East Gary      Click for a Bing or Google map.



Fort Wayne Crossing, a.k.a. Grand Trunk or Spriggsboro      Click for a Bing or Google map.



Fort Wayne Crossing tower board (photographer unknown)


Fort Wayne Crossing levers (photographer unknown)


Gibson      Click for a Bing or Google map.



Grasselli      Click for a Bing or Google map.



Grasselli board


Grasselli levers


Griffith      Click for a Bing or Google map.



Hartsdale      Click for a Bing or Google map.



Hays      Click for a Bing or Google map.



Hobart BART      Click for a Bing or Google map.      Click for a 1949 PRR diagram.



Bart tower inside


Bart tower in Hobart, IN


Ebony (former East Bart) TBS panel during 1985 Conrail single track project


Hobart HO      Click for a Bing or Google map.



HO tower in Hobart, IN




Indiana Harbor      Click for a Bing or Google map.      Click for a 1949 PRR diagram.



Ivanhoe      Click for a Bing or Google map.



Kirk Yard (West Gate)      Click for a Bing or Google map.



LaCrosse      Click for a Bing or Google map.



Liverpool      Click for a Bing or Google map.      Click for a 1947 PRR diagram.



Maynard      Click for a Bing map of Maynard (crossing of GTW and PRR).      Click for a 1949 PRR diagram.
Click for a Bing map of Monon (crossing of GTW and Monon).
Click for a Bing map of Air Line (crossing of PRR and Monon).



McCool      Click for a Bing or Google map.



MC Joliet      Click for a Bing map.



Monon      Click for a Bing map.



MS Whiting      Click for a Bing map.



NI West Chicago      Click for a Bing or Google map.



Osborn      Click for a Bing or Google map.



Porter      Click for a Bing or Google map.



Michigan-bound Amtrak on Porter wye


Rock Island      Click for a Bing or Google map.



Ship Canal      Click for a Bing or Google map.



1955 EJ&E plan diagram for Ship Canal


South Gary      Click for a Bing map.



10th Street      Click for a Bing map.



Tolleston      Click for a Bing or Google map.      Click for a 1949 PRR diagram.



Van Loon      Click for a Bing or Google map.



Wanatah      Click for a Bing or Google map.



Whiting      Click for a Bing map.      Click for a 1949 PRR diagram.



Willow Creek      Click for a Bing or Google map.



Willow Creek tower


Willow Creek levers


Willow Creek board


Willow Creek looking east on the B&O


Athens, PA      Click for a Bing map.



BD, Binghamton, NY      Click for a Bing map.



BX, Binghamton, NY      Click for a Bing map.



FA, Oneonta, NY      Click for a Bing map.



Active North American railroad interlocking towers and cabins

All Time Interlocking Tower List This Yahoo! Group is attempting to identify all towers which ever existed in the US and Canada. Must be a member.
 NOTE: There are lots of railroad related Yahoo! Groups. I suspect several of them have tower photos or information in their Photos or Files sections.

Alto tower, Altoona, PA

Amtrak Philadelphia Division Track Diagrams - 1992

B&O Towers in 1928,    B&O Towers in 1958

Boylan tower, Raleigh, NC

Chicago Area Rail Junctions Outstanding site. Has pictures and track diagrams of junctions.

Chicago Area Towers Has several photos, many taken inside towers.

Columbus, OH Towers

Conrail Archives - Interlocking Charts by Multimodalways

Conrail Towers as presented by the Conrail Technical Society

EJ&E Archive Has some tower information and pictures.

EJ&E Yahoo! Group Has some tower photos and diagrams. Must be a member.

Grasselli tower rebuild Tower has been moved to the Hoosier Valley Railroad Museum.

HARRIS tower restoration

Illinois Central Chicago area towers

Images of 75th Street Tower, Chicago, Illinois

Lehigh Valley towers

Metra A2 Tower

Metra Kensington Tower

New York City's Pennsylvania Station's Tower A by Zachary Gillihan

NYC towers from Rochester & Genesee Valley RR Museum

North American Interlockings

North American railroad interlocking towers and cabins

N8QNP'S Rail Page

Photos of several hundred towers all over the country

Photos of several hundred towers all over the country. Almost the same as above.

Preserved Interlocking Towers

Principles of Interlocking

PRR interlocking diagrams List of PRR towers, several with track diagrams.

PRR Signals & Towers

Railroad Interlocking Towers of Texas

Railroad Interlocking Towers This Yahoo! Group has lots of tower photos and diagrams. Must be a member.

RR Signal Pix.com Has some tower pictures.

Ridgely tower, Springfield, IL

The Signal Box (USA towers)

Some Santa Fe Towers

State Line Tower

Texas Railroad Interlocking Tower Home Page

List of All Texas Towers

Tower photographs by Doug Davidson

Tower photographs by Jon Roma

Tower photographs by Mark Vogel

Towers along the Indiana Harbor Belt

For comments, questions, or problems email me at ejeoperator -at- gmail.com.

© 2005, 2013 David Haynes