The Nymore Bridge was built as the first highway bridge across the thin isthmus of land between Lake Irving and Lake Bemidji, the two lakes that form the boundaries of the City of Bemidji. The area to the south east of the isthmus was once known as Nymore. Nymore became part of Bemidji in 1917 just as the bridge was being competed. The bridge was planned to be completed and opened on January 1, 1917. Bad weather and a strike delayed the work, so it did not open until the fall of 1917.

This bridge was the main highway river crossing in the area at the time it was built. It is a very graceful triple arch. The decorative lamp posts and gas lights have long since been removed, and a number of utility pipes including a large water main spoil the looks of this elegant structure.

This old bridge lost its mainline status when the new Highway 197 bridge was built just a hundred feet down stream in 1934. The Highway 197 bridge was rebuilt in 1969, then totally replaced with new bridges in 2002. All that time, the Nymore Bridge remained more or less unchanged. When the new 2002 bridges opened on Highway 197, the Nymore bridge was blocked on one end, and now only serves traffic to a city streets maintenance yard. There was talk of converting this bridge into a public trail, but the trail was eventually built over the former Soo Line rail bridge just up stream.

The Nymore bridge is very interesting bridge to look at. It has a lot of detail work in the concrete. It also sits in a very interesting location. The 800 foot wide isthmus between the lakes has supported as many as 7 different bridges, 4 rail bridges (two now removed), the two spans of the highway 197 bridge, and the historic Nymore bridge.