US 12 (Sauk Prairie Road intersection) - Sauk County

Project location | Project overview | Schedule | Traffic impacts/detours | Status/phase | Contact information

Project location

US 12 (Sauk Prairie Road intersection), Prairie du Sac - Sauk County

Project overview

The project will address the two-way stop-controlled Sauk Prairie Road intersection on US 12 in Sauk County. The proposed improvements include the following:

  • Replacing the intersection with a single lane roundabout with concrete pavement
  • Installing new lighting at the roundabout
  • Installing new storm sewer at the roundabout

Schedule

  • September 8, 2025 - Public Involvement Meeting and Local Officials Meeting
    • 5:30 - 7:00 p.m.
  • Summer 2029 - Construction anticipated

Traffic impacts/detours

US 12 will remain open to through traffic and Sauk Prairie Road will be closed to through traffic during construction.

Status/phase

Design

Contact information

Joshua Koebernick, P.E.
WisDOT Project Manager
(608) 246-3859
joshua.koebernick@dot.wi.gov

Hannah Punzel
WisDOT Southwest Region Communications Manager
(608) 246-7907
hannah.punzel@dot.wi.gov

Wisconsin Department of Transportation (WisDOT)
Southwest Region, Madison Office
2101 Wright Street
Madison, WI 53704
Phone: (608) 246-3800
TTY: 711
Email: swr.dtsd@dot.wi.gov