410th Street Bridge
Lost through truss bridge over Floyd River on 410th Street southwest of Hospers
Replaced by a modern bridge
Built 1897 by W.W. Allen; replaced 2001

Fairview Railroad Bridge
Pony truss bridge over Big Sioux River on the BNSF Railroad at Fairview
Open to railroad traffic

Floyd River Bridge
Lost through truss bridge over Floyd River on a local road
No longer exists
Built ca. 1920; rehabilitated 1955; replaced 2001

Hawarden Railroad Bridge
Three-span through truss bridge over Big Sioux River on the UPRR at Hawarden
Open to railroad traffic

Hudson Bridge
Abandoned through truss bridge over Big Sioux River south of Hudson
Abandoned with one span missing
Built 1915; east span washed out 1976

Kiwanis Bridge
Two-span through truss bridge over Rock River west of Rock Valley
Open to pedestrians only
Former bridge on the Milwaukee Railroad converted to pedestrian use by the Kiwanis Club

Rock Valley US 18 Bridge
Stringer bridge over Rock River on US 18
Open to traffic
Built 2002

Sixmile Creek Bridge
Pony truss bridge over Sixmile Creek on a local road
Unknown status
Built 1922