Chicago

Fatal Rollover Crash on Stevenson Expressway Near Darien Results in Road Closure and Investigation

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Published on July 12, 2025
Fatal Rollover Crash on Stevenson Expressway Near Darien Results in Road Closure and InvestigationSource: Unsplash/Sandy Millar

A fatal rollover crash on the Stevenson Expressway near Darien resulted in at least one fatality early Saturday morning, according to NBC Chicago. Illinois State Police state that the incident occurred on Interstate 55 southbound, north of Cass Avenue, at approximately 5:09 a.m.

The single-vehicle crash led to lane closures on the outbound Stevenson between Cass Avenue and Lemont Road, a two-mile stretch. As reported by ABC 7 Chicago, the investigation into what caused the crash is still active, stating that the lane closures, their reopening remain unspecified.

Authorities have not yet released details concerning the identity of the deceased or the circumstances surrounding the crash. The area has been cordoned off as investigators work the scene, urging motorists to seek alternative routes.

While the Illinois State Police continues to piece together the events leading up to the crash, details remain sparse, and the name of the individual killed, waiting for notification of next of kin, has not been released. Commuters in the area experienced significant delays, with traffic being diverted as the expressway’s lanes remained closed for an extended period following the accident.