Construction work on Interstate 39/90/94 north of Madison between WIS 60 and County CS, Columbia County, will cause delays for motorists heading north Friday afternoon and returning home Sunday.
WisDOT suggests alternate routes to avoid congestion during peak hours.
Traffic is reduced to four lanes in the work zone. The speed limit is 55 mph.
Crews are replacing four miles of pavement and installing median safety walls. The current stage of the project is expected to be completed in November, according to a release from WisDOT.