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The first railroad to go through South Bend was a line from Toledo to Chicago completed in 1851. I think that line became part of the New York Central. The Grand Trunk Western built through South Bend around 1880. The Grand Trunk shared trackage with the New York Central for about a mile and a half in South Bend, Indiana.
The NYC and GTW began a track elevation project to eliminate 18 city street crossings in South Bend in 1929. In 1930 the NYC built an interlocking tower at the west end of the passenger station used jointly by the two railroads. A 259 lever GRS model 5B interlocking machine was installed in the new tower.
On September 2, 1983 Grand Trunk Western engines 5804, 5821, and 4134 sashay through the plant by the South Bend interlocking tower. A crazy lost railfan is trying to get ahead of the train using the access road over on the left and kicking up a lot of dust.
Just east of the tower is South Bend Union Station. It opened in 1929 and served passenger trains of both the New York Central and Grand Trunk Western railroads. Disk 114