By the turn of the century, Boom Island was cleared and used as a storage yard by the sawmills. They needed large open spaces to stack green lumber to allow it to season. The Wisconsin Central Railroad purchased the lower half of Boom Island, and developed a large railroad yard. The track that connected this yard to the rail network split off of the Great Northern bridge over the east channel behind Nicollet Island. The branch line skirted along the northern edge of Nicollet Island, and then used this bridge to cross the Mississippi River east channel to reach Boom Island.
The railroad operation on Boom Island was in high gear until after WWII, where rail traffic in general started its downhill trend. The activity was very slow in the 1960s, leading to the railroad yards on Boom Island being cleared in the early 1970s.
This was good timing because there was an interstate highway building boom going on, and I-335 was proposed to cross the Mississippi River at Boom Island. As a result, the city purchased Boom Island. The upper section was cleaned up and built out as a regional park complete with a marina and boat launch. The lower section was tied up in the I-335 lawsuits, which took more than 20 years to settle. In the end, I-335 was cancelled. The lower section of Boom Island sat vacant for many years. The area was finally cleaned up and developed into park area in the late 2000s.
With all the changes in this area, it is amazing that this small bridge was able to survive. Perhaps that is due to its location. It sits in a low spot that is hard to see from either Nicollet Island or the north river bank. Perhaps being located in an out-of-the-way spot helped save this structure. In any event, the Minneapolis Park and Recreation Board obtained title to this bridge and refurbished it as a pedestrian and bicycle trail in 1987.
The photo above is a view of the west portal of the Wisconsin Central Railroad Bridge. The extensive brush and trees make the bridge a bit hard to locate, and even harder to photograph.