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. The current structure
is a precast concrete culvert. Rocks were placed around the ends of the
culvert and cemented into place to stabilize the roadway and prevent
erosion during periods of high water.
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 not long enough to 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.
The photo above is a view of the river crossing looking down County Highway
117 from the pavement level. The photo below is a view of the downriver
outlet of the culvert. The photo at the top of the page is a profile view
of the river crossing.