Crash between Janseville, Beloit; pileup involves 85 vehicles

A multi-vehicle crash shut down Interstate 39/90 in Rock County Friday afternoon, Jan. 27 between Beloit and Janesville.

According to the Wisconsin State Patrol, the severe winter weather – snow, ice and whiteout conditions – are believed to be what caused the initial crash. 

Officials said the initial investigation indicates 85 vehicles were involved. Twenty-one people were injured and one death was reported in an unrelated crash.

SIGN UP TODAY: Get daily headlines, breaking news emails from FOX6 News

It happened around 12:30 p.m. near mile marker 181, blocking traffic in both directions. Southbound traffic was diverted at Avalon Road, and northbound traffic was diverted at Shopiere Road. 

Southbound traffic reopened around 8:10 p.m. while northbound reopened around 9:10 p.m.

A nearby WisDOT traffic camera showed a long line of vehicles stuck in traffic near the scene.

Most of southern Wisconsin remained under a winter weather advisory Friday afternoon with more snow expected on Saturday.

Associated Press contributed to this report.