Iowa DOT Bridge Deck Overlay Project Forces Lane Closures, Detours on U.S. Highways 61/151 in Dubuque

The Iowa Department of Transportation’s US 61/151 Peosta Channel Bridge Deck Overlay Project will begin on Monday, June 10. DOT crews will be improving the surface of the U.S. 61/151 bridge over the Peosta Channel north of 16th St.

The project will require the complete closure of both the northbound and southbound lanes of U.S. 61/151 from the 9th St./11th St. interchange to the Wisconsin Bridge exit. Drivers going through the area can expect the following closures and detours:

  • Beginning June 10: U.S. 61/151 Lane Closures 
    The inside lanes of U.S. 61/151 will close in both directions for the removal of median barriers.
  • Beginning June 17: U.S. 61/151 Northbound Lanes Closed 
    Both northbound lanes of U.S. 61/151 will be closed. During the closure of the northbound lanes, northbound and southbound traffic will be merged into a two-way traffic pattern in the southbound lanes of the highway. The entrance and exit ramps from Kerper Blvd. to U.S. 61/151 will also be closed. Northbound traffic on U.S. 61/151 will be able to access Kerper Blvd. and Chaplain Schmitt Island by exiting at the 7th St. exit ramp.
  • Beginning in September: U.S. 61/151 Southbound Lanes Closed 
    The northbound lanes of U.S. 61/151 will re-open while both southbound lanes are closed. Traffic in both directions will be merged into a two-way traffic pattern in the northbound lanes. The southbound exit ramp from U.S. 61/151 to 9th St./11th St. and the southbound entrance ramp from Kerper Blvd. to U.S. 61/151 will be closed. The northbound entrance ramp from 9th St./11th St. to U.S. 61/151 will remain open. Northbound traffic on U.S. 61/151 will continue to be able to access Kerper Blvd. and Chaplain Schmitt Island by exiting at the 7th St. exit ramp.

Click the images below to view full-size maps of lane closures and detours associated with the project.

The Iowa DOT expects the bridge replacement project to be finished in November 2024.

If you have questions regarding U.S. 61/151 closures/detours, please contact the Iowa DOT at 563-927-2397. If you have questions regarding the S. Grandview Ave. closure/detour, please contact the City of Dubuque Engineering Department at 563-589-4270. Please note, closure dates and times are estimates and subject to change without notice based on weather and contractor schedules.

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