See information below from the Iowa DOT regarding demolition of the existing northbound 1st Avenue bridge over I-80 and related detours for I-80 traffic. This work needs to occur overnight when I-80 traffic volume is low because I-80 traffic will be detoured around the work zone using the exit and entrance ramps at 1st Avenue.

On I-80 eastbound (Exit 242)*:

• March 27-30, 2023: Eastbound I-80 will be closed at 1st Avenue to remove the south half of the existing northbound 1st Avenue bridge. Eastbound I-80 traffic will be detoured off I-80 (exit 242) onto the exit ramp and then continue straight onto the entrance ramp to get back onto eastbound I-80. The closure / detour will begin each night at 11:00 pm and run through 5:00 am the next morning.
• March 6, 2023-December 31, 2023: Intermittent lane closures overnight between 7:00 pm and 6:00 am Monday through Thursday, and between 9:00 pm and 6:00 am Sunday.

On I-80 westbound (Exit 242)*: 

• April 3-6, 2023: Westbound I-80 will be closed at 1st Avenue to remove the north half of the existing northbound 1st Avenue bridge. Westbound I-80 traffic will be detoured off I-80 (exit 242) onto the exit ramp and then continue straight onto the entrance ramp to get back onto westbound I-80. The closure / detour will begin each night at 11:00 pm and run through 5:00 am the next morning.
• March 6, 2023-December 31, 2023: Intermittent lane closures overnight between 7:00 pm and 6:00 am Monday through Thursday, and between 9:00 pm and 6:00 am Sunday.

*Dates subject to change based on weather and unforeseen circumstances

Comment: Davenport Resident Construction Engineer (800-262-5145)

The Iowa Department of Transportation is managing this project. Please check their 511ia.org website for project updates and real-time traffic conditions.

Visit www.coralville.org/1stAve80interchange for additional information, including graphics of the completed project.

Questions can be directed to City Engineer Scott Larson at slarson@coralville.org or call 319.248.1720. Sign up for Construction and Traffic Updates at www.coralville.org/notifyme.