Illinois-bound traffic was backing up on Interstate 74 just before the bridge.
The back-up started Friday morning, May 13, 2016. Vehicles were backing up beyond the last Iowa exit around 10:15 a.m.
Iowa Department of Transportation cameras showed that there were no cars traveling over the bridge into Illinois.
Traffic was being let through after 10:20 a.m. Emergency vehicles could be seen off to the side of the bridge.
Iowa-bound traffic was moving smoothly.