Interlocking: Michigan Avenue Tower, Fordson, MI
Michigan Avenue tower was at the grade crossing of the Michigan Avenue interurban line to Dearborn and the Pere Marquette main line from Grand Rapids to Fort Street Union Station. This tower, which did exist, was eliminated when the PM line was elevated enroute to Rougemere Yard and the interurban line (and Michigan Avenue) went through in an underpass.
The Detroit Terminal railroad also came through after the overpass was installed. They also crossed the PM line and this crossing was given the same name.
Location: 42o19.515'N, 83o09.949'W.