A Wisconsin man was left with life-threatening injuries after a traffic crash in Volo on Tuesday, the Lake County Sheriff's Office said on Wednesday.

Lake County Sheriff's deputies responded at 2:30 p.m. to Route 12, just south of Brandenburg Road in Volo for a traffic crash with injuries. When the deputies arrived, they located two vehicles with major damage.

A preliminary investigation of the crash shows a 2009 Chevrolet Aveo, driven by a 59-year-old man of Silver Lake, Wisconsin, was traveling south on Route 12 in the inside lane. At the same time, a Freightliner Street Sweeper, driven by a 43-year-old man of Elk Grove Village, also traveling south in the inside lane.

The driver of the street sweeper was driving at a reduced speed, as he was conducting cleaning operations of the roadway, according to the sheriff's office.

"We do know the street sweeper was traveling in the inside lane conducting debris and Cleaning the roadway from debris and other material," Lake County Sheriff's Sgt. Chris Covelli said.

For an unknown reason, the driver of the Chevrolet drove directly into the rear of the street sweeper. 

The driver of the street sweeper was uninjured.

The driver of the Chevrolet was critically injured in the crash and was taken to Advocate Condell Hospital in Libertyville with life-threatening injuries. As of Wednesday afternoon, Sgt. Chris Covelli of the Lake County Sheriff's Office said the man remained at the hospital in critical condition.

The crash remains under investigation by the Lake County Sheriff’s Office Technical Crash Investigations Unit. 

"Investigators will be looking into ensuring adequate warning lights were operating on the street sweeper, as well as looking into if any kind of electronic distraction factored into the crash," Covelli said.

Lake County