Why Are Studded Tires Illegal in Wisconsin?

We Were Wondering: Why Are Studded Tires Illegal in Wisconsin?

In Wisconsin, only rubber meets the road. But why?

With winter sliding our way, drivers once again need to get a grip on how not to slip. But if you’re new here, you need to know that in Wisconsin, only rubber meets the road. The state outlaws metal-studded tires, except for emergency vehicles, school buses and mail delivery. Out-of-state drivers get a pass if they’re just passing through.


It’s time to pick your Milwaukee favorites for the year!

 

Studded tires feature small metal spikes to improve traction and control on snow and ice. But on the down side, “It is widely accepted that studded tires cause significant damage to … pavements,” state highway maintenance director Rebecca Szymkowski wrote in an email. They create ruts that not only reduce pavement life but can fill with ice and make roads more slippery, Szymkowski said. Pavement markings also suffer, she wrote.

Besides, Szymkowski wrote, state highways are always supposed to be plowed clear, so you shouldn’t need studded tires there. Finally, she added, “recent advancement in snow tire technology” has upgraded the performance of snow tires without metal studs. 

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Most states permit studded tires in winter, but several of our neighbors have tighter restrictions. For example, Michigan law allows them only “for the extreme winter snow and ice conditions of the Upper Peninsula and the northern Lower Peninsula,” as well as for emergency vehicles and rural letter carriers statewide.

Illinois and Minnesota also exclude rural letter carriers from their bans, and Illinois has a special exemption for disabled veterans living in rural areas. Iowa is among the 35 states, plus the District of Columbia, that permit studded tires by season, weather or region. Six mountainous states (Colorado, Kentucky, New Hampshire, North Carolina, Vermont and Wyoming) allow them year-round, while five sunny states (Florida, Louisiana, Mississippi, South Carolina and Texas) prohibit them entirely.


This story is part of Milwaukee Magazine’s December 2024 issue.

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Larry Sandler has been writing about Milwaukee-area news for more than 30 years. He covered City Hall and transportation for the Milwaukee Journal Sentinel, after reporting on county government, business and education for the former Milwaukee Sentinel. At the Journal Sentinel, he won a Milwaukee Press Club award for his investigation of airline security. He's been freelancing since late 2012, with a focus on local government, politics and transportation. His contributions to Milwaukee Magazine have included in-depth articles about our lively local politics, prized cultural assets and evolving transportation options. Larry grew up in Chicago and now lives in Glendale.