This large through girder bridge is the northern crossing of the Pecatonica River in Darlington.
Built in 1905, this bridge consists of a pair of through girder spans set onto concrete substructures. In addition, the bridge is heavily skewed.
Bridges like this are standard in design, and are seen all over the railroad system. This structure replaced a wooden Howe Through Truss, built in 1893.
Overall, the bridge appears to be in good condition. It currently carries the Cheese Country Trail.
The author has ranked this bridge as being locally significant, due to the common design.
The photo above is an overview. The bridge can be accessed from the trail it carries.
| Upstream | Pecatonica River Bridge #3 |
| Downstream | Pecatonica River Bridge #5 |