A two-vehicle crash occurred in the southbound lanes of Interstate 55 at mile marker 246 in Channahon, Will County, Illinois, around 3:15 a.m. on Sunday April 5, 2026. Illinois State Police troopers responded to the collision in this busy corridor of the Eisenhower Expressway where high speeds and bridge structures create hazards for drivers.
The incident involved two vehicles and resulted in one driver being fatally injured while the other sustained injuries requiring hospitalization. Emergency crews worked under urgent conditions to assist those involved at the scene near the mile marker in Channahon.
The victim was identified by the Will County Coroner’s Office as 26-year-old Melissa Prosser of Bourbonnais. She was pronounced dead at approximately 4:15 a.m. at St. Joseph’s Medical Center in Joliet after being transported from the crash site on southbound I-55. Prosser was one of the drivers in the two-vehicle collision that unfolded near mile marker 246 in Channahon. The coroner confirmed her identity and the cause of death as blunt force trauma sustained in the accident.
The second driver involved in the crash on Interstate 55 was also transported to a hospital with injuries though the extent has not been publicly detailed. The collision at mile marker 246 in Channahon involved no other vehicles and occurred in the southbound lanes of the interstate.
Illinois State Police have not released additional information on the sequence or contributing factors as the investigation remains ongoing. The crash prompted a temporary closure of the southbound lanes while crews cleared the scene in this part of Will County.
The Bourbonnais and broader Will County community has been left in mourning over the loss of Melissa Prosser in the fatal crash at mile marker 246 on Interstate 55. Family and friends have expressed profound grief while local residents have reflected on the sudden tragedy in a corridor frequently traveled by commuters.
The Illinois State Police and Will County Coroner’s Office continue their joint investigation into the April 5 crash on southbound Interstate 55 at mile marker 246 urging anyone with information or dashcam footage from the area to contact authorities. The case remains active with focus on determining the full circumstances of the two-vehicle collision in Channahon. No charges have been announced as the probe advances into the events that unfolded during the early morning hours on the interstate.
The Channahon and Will County communities have expressed concern over the dangers of high-speed travel on Interstate 55 as they reflect on the fatal crash near mile marker 246. The loss of 26-year-old Melissa Prosser has prompted calls for greater awareness around safe driving practices on this stretch of the highway. As the investigation proceeds the focus remains on supporting Prosser’s family while the region mourns the young woman whose life ended abruptly in Channahon, Illinois.