This location was once a logging dam. The pool on the north side of the road was made deep so logs that drop over the dam have a place to splash down without hitting bottom and creating a log jam. The dam was replaced with a bridge, and later with a metal culvert. The metal culvert had fasteners that held several sections of culvert together. Those fasteners hung down, creating a safety hazard for canoeists.

This is the first highway to cross the Mississippi River. There are no signs, and the river is just a small stream. If you don't know that you are crossing the legendary great river, you might blink and miss it. This structure is only a culvert, so it doesn't qualify to be in the National Bridge Inventory, thus, no NBI number. Perhaps the great river deserves better for its first highway crossing, though one has to admit that this is a very picturesque location just as it stands.