Wisconsin Crash Hot Spots: The Most Dangerous Roads and Intersections

Where Wisconsin Traffic Deaths Happen

WisDOT counted 537 traffic deaths in Wisconsin in 2025, down from 576 in 2024 and the lowest total since at least 2020. Most fatal crashes weren’t on interstates but on state highways, local streets and county roads. Pedestrian deaths dropped to 43, well off the 2022 peak of 72.

Milwaukee County had 74 of those deaths, about twice Dane County’s 36, WisDOT’s preliminary county figures show. Alcohol-related crashes killed 141 people statewide.

A Closer Look at Wisconsin’s High-Risk Corridors

The same highways and city streets keep turning up in Wisconsin crash coverage. Here’s what makes each one tricky, with figures from WisDOT, Milwaukee County or the City of Madison where they’ve been published.

1. Interstate 41 (U.S. 41): Milwaukee to Green Bay

I-41 runs from the Milwaukee area north through Fond du Lac, Oshkosh and the Fox Cities to Green Bay, carrying commuters, Packers fans and a lot of freight. Rear-end crashes and chain reactions happen when traffic stacks up at interchanges, and black ice makes it worse in winter.

WisDOT is widening 23 miles of I-41 to six lanes between Appleton and De Pere, with work scheduled from 2024 to 2030. Brown County, home to Green Bay, had 10 traffic deaths in 2025, according to WisDOT.

2. U.S. 45: Fond du Lac to Oshkosh

Between Fond du Lac and Oshkosh, U.S. 45 leaves the freeway and runs as a two-lane road along Lake Winnebago. Passing zones are limited and lighting is sparse, so impatient passing leads to head-on and run-off-road crashes. Deer are a constant hazard at dusk in the fall.

3. Interstate 94: Zoo Interchange to Downtown Milwaukee

This is about as busy as Wisconsin roads get, with roughly 158,000 to 178,000 vehicles a day between 70th Street and 16th Street, WisDOT says. Tight ramps, slowdowns near American Family Field and icy elevated ramps lead to sideswipes and rear-enders.

WisDOT’s study of that 3.5-mile section counted 2,300 crashes from 2015 to 2019, 4 of them fatal, with crash rates on most of it at least twice the statewide average for similar urban freeways. Preliminary work on the rebuild began in late October 2025, and the first segment is scheduled to wrap up by late 2028, so expect lane shifts for a while.

4. Interstate 43: Milwaukee to Sheboygan

I-43 heads north out of Milwaukee through Glendale, Mequon and Grafton, then follows the lakeshore to Sheboygan. Exits like Silver Spring Drive and Good Hope Road back up at rush hour, and drivers weaving to make them cause much of the trouble. Farther north, lake-effect snow can glaze the pavement fast.

5. Wisconsin 29: Wausau to Green Bay

WIS 29 is the big east-west freight route across the middle of the state. Most of it is four-lane divided highway, but side roads still cross at grade in many places, so a driver pulling out has to judge 65 mph traffic coming both ways.

Open farmland between Wausau and Shawano means blowing snow and near-zero visibility on bad days, and that’s when rollovers and lane departures pick up.

6. U.S. 12: Madison to Whitewater

In Madison, U.S. 12 is part of the Beltline, and the ramp intersections are where it gets messy. The City of Madison’s 2024 crash report counted 11 crashes at Fish Hatchery Road and the westbound Beltline ramps and 12 at the westbound ramps on Stoughton Road. Southeast of the city, U.S. 12 heads out through Cambridge, Fort Atkinson and Whitewater, where passing and turning traffic bring angle and head-on crashes.

7. Capitol Drive (WIS 190) and Fond du Lac Avenue: Milwaukee’s North Side

Capitol Drive is an east-west artery lined with bus stops, strip malls and side streets, and it crosses Fond du Lac Avenue (WIS 145) on the North Side. WisDOT data reported by FOX6 in 2023 ranked the area around Fond du Lac and Capitol as the city’s top crash hot spot by injuries, with crashes there from January to June 2023 up 250% from a year earlier.

Both streets, plus North Avenue, are among Milwaukee County’s 25 corridors of concern. In an October 2025 report, WISN 12 said county data counted 18 deadly crashes on Fond du Lac and 15 on Capitol in a four-year span.

8. 27th Street, Layton Boulevard and Layton Avenue: Milwaukee’s South Side

South 27th Street goes by Layton Boulevard through part of the South Side, and it’s a long, busy commercial street with a lot of people on foot. Milwaukee County treats 27th Street and Layton Boulevard as one corridor of concern running through both the North and South Sides, and WISN 12 reported it ranks first, with 26 deadly crashes and 101 serious-injury crashes in a four-year span of county data.

Don’t mix it up with Layton Avenue, a separate east-west road on the far South Side near Mitchell airport. It’s on the county’s list too, and the county’s federal safety grant list includes traffic calming and signal work there.

9. U.S. 51 (Stoughton Road) and East Washington Avenue: Madison’s East Side

Stoughton Road is the East Side’s main north-south route, a mix of signals, frontage roads and ramps. In the City of Madison’s 2024 crash report, Stoughton Road and Buckeye Road had 15 crashes, second among all city intersections, the same rank as in 2023.

East Washington Avenue (U.S. 151) crosses it and has several of the city’s top-ranked intersections. Its intersection with Zeier Road had 18 crashes in 2023, the most of any Madison intersection that year.

10. Interstate 39/90: Janesville

Through Janesville, I-39 and I-90 share the road between Madison and Rockford, with plenty of semis in the mix. Multi-vehicle crashes involving trucks are the ones that close the road, and wind and blowing snow can bring whiteouts on open stretches. Rock County, which includes Janesville and Beloit, had 24 traffic deaths in 2025, according to WisDOT.

More High-Crash Locations Across Wisconsin

Milwaukee County, the City of Madison, Kenosha County and WisDOT have put numbers on specific streets and intersections, and these are the ones with published figures. To look up your own street, WisDOT and UW-Madison’s TOPS Lab run Community Maps, a statewide map of police-reported crashes.

Milwaukee’s own Vision Zero summary counted 57 traffic deaths in the city in 2025, not counting interstates, down from 70 in 2024, and 53% of them happened on the city’s High Injury Network. Milwaukee County’s federal safety grant list includes traffic calming on 27th Street, Fond du Lac Avenue and Capitol Drive, plus a new signal and high-visibility crosswalk at Fond du Lac and 32nd Street. In Brown County, officials called Packerland Drive near West Mason Street, by Green Bay Southwest High School, the most dangerous intersection in the county, and a roundabout at Packerland and Trojan Drive there was finished in November 2025.

How to Stay Safe on Wisconsin’s Most Dangerous Roads

You don’t have to avoid these roads, just drive them knowing where the trouble tends to be.

For Drivers:

1. Watch your speed: Speed played a part in 182 Wisconsin traffic deaths in 2025, WisDOT says. Keep to the limit on I-94 and I-41, and go slower in snow.
2. Take crossroads seriously: On divided highways like WIS 29, cross or turn only when you’re sure of the gap. Traffic at 65 mph closes faster than it looks.
3. Pick your lane early: On I-94 through the construction and on I-43’s North Shore exits, last-second lane changes are what cause the sideswipes.
4. Put the phone away in the city: On Capitol Drive or East Washington Avenue, a glance down can mean missing a red light or a person in the crosswalk.
5. Slow down in work zones: The I-41 widening and the I-94 rebuild will run for years. Merge early and watch for stopped traffic and workers.
6. Never drive impaired: Alcohol-related crashes killed 141 people in Wisconsin in 2025. Plan a ride home.

For Pedestrians:

1. Cross at signals and marked crosswalks: On wide streets like 27th Street or Fond du Lac Avenue, crossing mid-block leaves drivers almost no time to react.
2. Make eye contact: Don’t assume a driver has seen you. Wait until the car has fully stopped before you step out.
3. Be visible after dark: Wisconsin winter afternoons get dark early. Wear something bright or reflective, and carry a light.

For Cyclists:

1. Use bike lanes and paths: Madison’s bike paths and Milwaukee’s protected lanes beat riding in traffic. Where there’s no lane, stay as far right as is safe.
2. Be easy to see: Wear bright colors, run lights front and back, and use hand signals so drivers know where you’re headed.
3. Watch turning drivers: Right-turning and left-turning cars are a common danger at intersections. Never assume a driver will yield.

General Tips:

1. Know your route: If your commute includes I-94, I-41 or the Beltline, build in time for construction delays and drive defensively.
2. Check the weather first: Snow, freezing rain and blowing snow make the worst days on WIS 29, I-39/90 and other open highways.
3. Check 511 Wisconsin: The state’s 511 traveler information or a navigation app shows crashes, closures and construction as they happen.

What to Do If You’re Injured in a Wisconsin Car Accident

A serious crash on I-94, WIS 29 or Capitol Drive can leave you hurt and unsure what to do. The first hours and days matter, for your health and your wallet.

1. Call 911. Even if nobody seems badly hurt, get police to the scene. They’ll write the crash report, which is what insurers go by. If anyone is seriously injured, ask for an ambulance.
2. Get checked out. Concussions and internal injuries don’t always show up right away. Go to the ER or urgent care, and follow up with your own doctor in the days after.
3. Document the scene if you can. If it’s safe, photograph the vehicles, damage, plates, signs and road conditions. Get witnesses’ names and numbers, and swap insurance information without admitting fault.
4. Be careful with adjusters. The other driver’s insurance company may call soon after the crash. You can politely decline a recorded statement until you have your crash report and understand your options.
5. Keep everything. Medical records, bills, repair estimates, missed work, and every letter or email from an insurer.

Who takes the report depends on where you crashed. State Patrol troopers, county sheriff’s deputies and city or village police all work crashes in Wisconsin, and reports for reportable crashes end up with WisDOT, which sells copies. Our Wisconsin crash report guide explains how to get yours.

Don’t know which agency handled it, or would rather skip the paperwork? We can get a copy of your report for you at no cost.

Wisconsin Crash Hot Spot Questions

More Wisconsin Crash Guides

County accident news: Milwaukee County · Waukesha County · Dane County · Rock County · Racine County · Kenosha County · Walworth County · Outagamie County

Nearby states: Illinois crash hot spots · Minnesota crash hot spots · Michigan crash hot spots

For the latest, crashes from around the state are posted in Wisconsin accident news and our recent accident alerts.