This two span Through Girder with Trestle approaches crosses the Trappe River at its confluence with the Wisconsin River, several miles south of Merrill.
The spans are different. While the southern span is a little lighter, the northern span is slightly heavier built.
This difference in spans indicates that these spans were at another location before here. It is unknown exactly where this could've been, as spans like this were common around the Milwaukee Road system.
Judging by the design of these two spans, it is likely that they came from single span structures. The rounded edge style girders were typically fabricated between 1900 and 1910, and were used for single span structures.
While Milwaukee Road Archives research indicates a 1913 date on this bridge (6 years old in 1919), a valuation map from 1919 indicates that this structure was a wooden trestle.
The approaches on either side of the main spans are timber trestles, and the substructures are also wooden.
Overall, the bridge seems to retain good historic integrity, however it does appear to be in a deteriorated condition.
The author has ranked this bridge as being moderately significant, due to the common design but history of relocation.
The photo above is an overview. The bridge can be accessed from Wisconsin River Road.