From the Strib: Access cut off to Rock Island Swing Bridge
A bridge once connecting Dakota and Washington Counties in Minnesota was closed to pedestrian traffic. "the double-decker structure was closed to trains in 1980 and vehicle traffic in 1999. The bridge was built in 1894." after part of it fell down. It was planned to be removed in 2010.
"Washington and Dakota counties inherited the bridge when it went into tax forfeiture after several years of private ownership."