Keithsburg Rail Bridge Vertical lift bridge that carried the Chicago and Rock Island Railroad across the Mississippi River at Keithsburg Abandoned with main span removed This bridge replaced a previous Iowa Central railroad bridge, constructed in the 1880s, that crossed at the same location. The old stone piers from the previous bridge still stand next to the current bridge.
Monkey Run Bridge Arch bridge over Monkey Run on Walnut Street in Columbus Junction Open to traffic Built 1935
Otter Creek Bridge Pony truss bridge over Otter Creek on a local road Open to traffic Built ca. 1920
Otter Creek Bridge Pony truss bridge over Otter Creek on a local road Open to traffic Built 1921
Unnamed Creek Bridge Pony truss bridge over an unnamed creek on a local road Open to traffic Built ca. 1920
Unnamed Creek Bridge Pony truss bridge over an unnamed creek on a local road Open to traffic Built 1900
Unnamed Creek Bridge Pony truss bridge over an unnamed creek on a local road Open to traffic Built 1900