This is a traditionally composed railroad through truss bridge that sits on highly unusual caisson supports. Most railroad bridges in this area sit on stone or concrete types of piers or abutments. This style of caissons were generally more common with highway bridges. These caissons also have stone on the top, which is odd. Typical design of this style of caisson (sometimes called Lally collumns) is concrete inside with a steel shell on the outside. Stone normally isn't part of the design. The caissons on this bridge are also interesting because they are connected by bracing rods and built-up beams with lattice. They also have been repaired, with giant straps added, as well as some steel welded on.
This bridge is a convenient location, and is easily visible to people traveling M-50 through Dundee. The bridge has v-lacing on diagonals, and the bracing is latticed. Connections are riveted. The bridge carries one railroad track, which is active. Deck plate girders provide and approach for the bridge; two at the north end and one at the south end.
A historical photo and brief article from 1939 shows that this bridge survived a derailment that occurred on the bridge.
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