Waukesha County fatal crash; 2 semis involved, portion of I-43 shut down

Published May 21, 2026 7:29 AM CDT

One person is dead following a crash involving two semi-trucks on I-43 in Waukesha County on Thursday morning. 

Fatal crash

What we know:

According to the Waukesha County Sheriff's Office, the crash happened on northbound I-43 just south of STH 164 in the Village of Big Bend around 6 a.m. 

A preliminary investigation shows that one semi-truck rear-ended another, resulting in the death of one driver at the scene.

The driver of the semi-truck that was struck was taken to the hospital with non-life-threatening injuries.

Semi crash on I-43 in Waukesha County

Semi crash on I-43 in Waukesha County

Northbound I-43 will remain closed for an extended period to allow for crash investigation and roadway cleanup.

Motorists are encouraged to seek alternate routes and avoid the area.

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This is a developing story. Monitor traffic conditions around the southeast Wisconsin freeway system any time with the FOX6 Traffic Tracker, powered by Google.

The Source: The information in this post was provided by the Waukesha County Sheriff's Office and the Wisconsin Department of Transportation. 

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