Interlocking: Adrian, MI - DT&I Tower

Adrian MI DTI Interlocking Diagram Adrian MI DTI Interlocking Diagram Adrian MI DTI Interlocking Diagram

Adrian had three interlocking towers at the turn of the century.  The busiest was the Lake Shore/Wabash interlocker on the east side of town.  There was also an interlocker at "South Adrian", where the DT&I crossed the Wabash.  The interlocker on this page was the crossing of the Detroit, Lima & Northern (later DT&I) with the Lake Shore & Michigan Southern (later NYC, Penn Central, Conrail and now Adrian and Blissfield).  It was staffed by the LS&MS (NYC) until 1931.

This interlocker was a tower with a 12-lever interlocking frame made by Union Switch & Signal according to records at the State of Michigan archieves.  The crossing was located at Division Street, about 1/2 mile east of the LS&MS depot.  The interlocking was protected by mast signals and derails (half switches).  In addition to the four main directions, the east end of a LS&MS passing track was also signaled.

Photo Info/Credit: Top, a map of the interlocking in 1899. 2nd photo, another version from 1929. [Both drawn from blueprints at the State of Michigan Archives by Dale Berry}. 3rd photo, the model board at the DT&I interlocking tower. [Robert Ellis]

Time Line:

Bob Ellis comments on his visits to the DT&I tower in 1959:  "The DT&I Tower was always called that name by the NYC men.  I was able to get into the DT&I tower one day when there was no operator to take the photo above of the model board.  The tower was not manned and the signals were normally set for the NYC Old Road. The door was locked with a big DT&I railroad lock. The DT&I train crew coming through would unlock the tower, go in and manually line up the cross route and after the train had passed, they would reline it for the Old Road. Even at this time, there was still a little phone with a crank ringer that still worked. I called my friend who worked at WB Tower (down the line at the Wabash Crossing) and talked to him. At this time (1959) the tower must have been unmanned for many years."  [Editor's Note:  According to the information in the State Archives, the tower was no longer manned after 1931, 28 years before Bob's visit].

March 21, 1930: The Michigan Public Utilities Commission allows the NYC to discontinue use of an operator at this crossing except between 9:00 a.m. and 5:00 p.m. daily except Sunday as the DT&I has completed the Malinta cut-off and there are no longer any scheduled trains on this branch. The petition came from the DT&I and there were no objections from the NYC. [MPUC-1930]