Check it out – Travel Wisconsin put together a list of "11 Unique Wisconsin Bridges You Have to See" and the very first unique Wisconsin bridges you have to see is Eau Claire's own Soo Line "S" Bridge, making for a wavy crossing of the Eau Claire River near Banbury Place. They say:

Located in the Banbury neighborhood of Eau Claire, this former railroad bridge over the Eau Claire River is appropriately named, as it curves into an "S" shape. The bridge was specifically designed as an S to connect railroad tracks running parallel on either side of the river without using the sharp turns of a linear bridge.  Now a part of Wisconsin's Rails-to-Trails program, is was converted to part of the Chippewa River State Trail in 2002. 

Check out the full list for more sweet Sconnie bridges.