- 1860: 20 miles completed from Sheboygan to Glenbeulah, Wisconsin by the Sheboygan and Mississippi Railroad
- 1861: S&M acquired by the Sheboygan and Fond du Lac Railroad
- 1868: 23 miles completed from Glenbeulah to Fond du Lac, Wisconsin by the Sheboygan and Fond du Lac Railroad
- 1871: 35 miles completed from Fond du Lac to Princeton, Wisconsin by the Sheboygan and Fond du Lac Railroad
- 1880: S&FdL acquired by the Sheboygan and Western Railway
- 1881: S&W acquired by the Chicago, Milwaukee & North Western Railway
- 1883: CM&NW acquired by the Chicago & North Western Railway
- 1901: 86 miles completed from Princeton to Marshfield, Wisconsin by the Princeton & North Western Railway
- 1901: P&NW acquired by the Chicago & North Western Railway
- 1937: Marshfield to Arpin segment abandoned, trackage rights acquired over the Wisconsin Central Railway
- 1946: Fond du Lac to Plymouth segment abandoned
- 1979: Fond du Lac to Marshfield segment abandoned, some sections acquired for trail use
- 1995: Chicago & North Western purchased by Union Pacific Railroad
- 1995: Union Pacific Railroad discontinues service between Kohler and Plymouth
- 2009: Kohler to Plymouth segment purchased by State of Wisconsin
- 2009: Wisconsin & Southern Railroad chosen to operate segment
- 2015: Line is rehabilitated, WSOR begins operations
- 1995-Present: Union Pacific operates the Sheboygan-Kohler segment
- 2015-Present: Wisconsin & Southern operates the Kohler-Plymouth segment of this line
06/26/21
This interesting looking structure crosses the Fox River near Princeton. It is a no longer operational Pony Truss Swing Span, which is rare compared to other designs.
Currently, the bridge shares a design with the Kaukauna Swing Bridge and the Allouez Swing Bridge.
The main truss is a 13 panel, Parker Pony Truss balanced on a swing pier. It features riveted connections.
On the south end, the truss is approached by a single I-Beam span, which was added in 1908.
The bridge is unique, as it makes one wonder about the status of this river when it was constructed. The Fox River at this spot is only a couple feet deep, and not nearly wide enough to fit a full sized vessel through.
In addition, the levers which made the span turn have been long removed. However, the original gears still exist.
The photo above is an overview looking north. The author has ranked this bridge as being regionally significant, due to the rare small scale example of a swing span.
| Upstream | Abandoned Swan Lake Bridge |
| Downstream | Princeton Trail Bridge |