Located west of Jefferson Junction, this large deck girder bridge carries the Glacial Drumlin Trail over the Rock River.
The previous bridge at this location was a deck truss bridge, built in 1899. In 1928, that bridge had become too light and was replaced by the present bridge.
Currently, the bridge consists of four large deck girder spans, and a fifth smaller deck girder span on the east end. The entire bridge rests on older stone substructures.
This style bridge is very common along American railroads, due to the ease of construction and lack of required maintenance. Typically, spans like this could be installed in only a few hours, minimizing service interruptions.
Overall, the bridge remains in good condition, with little significant deterioration. It should be noted that there is a dip in the deck, possibly indicating some sort of structural issues.
The author has ranked this bridge as being locally significant, due to the common design.
The photo above is an overview.
| Upstream | UP Rock River Bridge (Watertown) |
| Downstream | UP Rock River Bridge (Jefferson) |