PEWAUKEE — A tanker truck crash near Pewaukee injured four people and shut down Highway 16 north of I-94 during the Friday morning commute, causing significant traffic delays and involving multiple vehicles.
The crash happened around 8 a.m., according to the Wisconsin Department of Transportation. A tanker truck traveling south hit several vehicles, crossed the median and collided with more cars traveling in the opposite direction, according to witnesses at the scene.
Drone footage captured multiple overturned cars and the tanker truck turned sideways across the highway.

Alfredo Acosta was driving just ahead of where the crash occurred and witnessed the aftermath in his rearview mirror.
“Next thing I heard was a really loud crash. I looked in my rearview mirror, saw the truck tumbling over across the lane and crashed two more cars. And yeah, I mean, that was—it all happened pretty quickly. But then, yeah, I jumped on 911 right away, advised them,” Acosta said.
Watch: Highway 16 closed in both directions near Pewaukee due to crash
According to Acosta, vehicles on Highway 16 were slowing down because of an earlier crash near Lakeland Supply, just before the ramp to merge onto I-94. He reported that traffic was coming to a standstill, with some drivers even attempting U-turns on Highway 16.

TMJ4’s Rebecca Klopf was at the scene this afternoon, where Highway 16 remained closed as emergency vehicles continued working at the crash site. People believed to be involved in the crash were seen sitting on guardrails, likely waiting for transportation after their vehicles were damaged.
This is a developing story and will be updated.
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