PHOTOS: A year ago, a massive pileup near Beloit left dozens hurt.
On Jan. 27, 2023, all lanes of I-39/90 were shut down after the crash. One after another, cars smashed into each other.
Initial reports from that day show roughly 50 cars crashed, but an investigation shows more than quadruple that were involved.
Our sister station WKOW sat down with one of the first officials on scene to learn what exactly caused the crash.
Sgt. Craig Morehouse, of the Wisconsin State Patrol, still remembers arriving on scene.
"It was just chaos," he explained.
Morehouse said they were first alerted to a pileup on the northbound side of the interstate. At that point, only 20 or 30 cars had crashed.
Not long after, the same thing happened on the southbound side.
"I could hear people crashing behind me," Morehouse added.