US 18 Bridge Projects

Waukesha County

Project Details

Project Details:

This project will make improvements to approximately 4.3 miles of US 18 (Sunset Drive) in Waukesha County, from WIS 67 in Dousman to the Waukesha/Jefferson county line in Oconomowoc. Three bridges along US 18 over the Bark River will also be replaced as part of the project.

Traffic Impacts/Detours:

US 18 (Sunset Drive) will be closed to through traffic from Waukesha/Jefferson county line to WIS 67 from September 5 to late November 2023, and then again from mid-February to mid-summer 2024.

  • Full closure just west of Gramling Lane beginning September 5th; roadway will be impassible. Bridge out until fall 2023
  • Local access will be maintained – drivers are allowed to enter the work zone if their destination is in the work zone
  • Detour will be posted utilizing County BB to County DR, and WIS 67.
  • Access to businesses in the work zone will be maintained.

Click here to view Detour Map and Project Flyer

US 18 Bridge Closures/Dates:

  • Bark River bridge replacement west of Gramling Lane (Sept. 5th – late November 2023)
  • Bark River bridge replacement east of S. Utica Road (Mid-February 2024 – late spring 2024)
  • Bark River bridge replacement west of WIS 67 (Mid-February 2024 – late spring 2024)

Additional Improvements:

  • 2024 Pavement resurfacing along the project limits (Late spring 2024 – mid-summer 2024)
    • Asphalt pavement patching
    • Milling and Asphalt resurfacing
  • Guardrail repairs
  • Installation of new pavement markings, rumble strips, and signing
  • Deck replacement on eastbound WIS 59 bridge over Fox River

This project is scheduled for completion by mid-summer. All work is weather dependent and subject to change.