The main channel bridge, just a few hundred feet north on US-10, is nearly 1,000 feet long. Not so for this little back channel structure. It is only 80 feet long. While the main bridge has a number of piers and spans, this little back channel bridge crosses this branch of the Mississippi River in a single leap. It is interesting that the main channel bridge has steel girders, but this small back channel bridge has concrete girders. One would think that the bridge builders would have just ordered up 80 more feet of steel and called it good.
A Mississippi River crossing that is made up of two or more bridges in series is not all that unusual, at least not on the Upper Mississippi River, but this is the only such example north of Red Wing, Minnesota.