GODFREY, Madison County, Ill., Sept. 20, 2026 — One person died, and another was injured in a rollover crash early on Sunday morning, September 20, in a construction zone on West Delmar Avenue in Godfrey. Authorities say the SUV struck a concrete barrier before overturning.
According to the Madison County Sheriff's Office, deputies were flagged down by a passing motorist at about 1:45 a.m. near West Delmar Avenue and West Homer Adams Parkway. Deputies arrived to find an SUV overturned inside the construction zone.
A preliminary investigation indicates the SUV was traveling eastbound on West Delmar Avenue at a high rate of speed when it struck a concrete barrier, causing it to roll over multiple times, authorities said. A passenger in the vehicle died at the scene. The driver was taken to a hospital for treatment; the extent of those injuries has not been released.
The sheriff's office said the passenger's identity is being withheld until family members are notified. The roadway was closed for several hours for crash reconstruction and has since reopened.
The Madison County Sheriff's Office, the Madison County Coroner's Office, and the Metro East Crash Assistance Team are investigating. No further details, including a possible cause, have been released.
Our thoughts are with the family and loved ones of the person who died.
What Makes Work-Zone Roads Safer, and Why Buckling Up Still Matters Most
Construction zones concentrate risk in ways ordinary roads don't: narrowed lanes, shifted traffic patterns, concrete barriers close to the travel lane, and drivers unfamiliar with the layout. Engineers have found that certain fixes make a real difference, including better-lit barriers, rumble strips ahead of lane shifts, lower posted speeds enforced with cameras or troopers, and barrier designs meant to redirect a vehicle rather than stop it outright. Roundabouts and timed signals help elsewhere on the road network by cutting the number of high-speed conflict points, though most work zones rely more on barrier placement and speed control.
Even with those design changes, what happens inside the vehicle in the moment of impact still depends heavily on restraints. A seat belt keeps an occupant positioned against the seat and airbag rather than letting them move freely inside the cabin, which matters most in a rollover, when unbelted occupants can be thrown around the interior or partially ejected. Vehicles that roll over multiple times put extra load on anyone not belted in.
According to the Federal Highway Administration, weather and roadway safety programs use nationally reported fatal-crash data to track work-zone safety in 2023. Combining road-level engineering with consistent seat belt use remains the most reliable way to keep a work-zone crash from turning fatal.
Frequently Asked Questions
What should families do after a fatal crash?
Families can request a copy of the official crash report from the investigating agency once it's finalized, and they can contact the coroner's or medical examiner's office directly with questions about notification and next steps.
How are fatal crashes investigated?
Agencies typically document the scene, measure skid marks and vehicle damage, interview witnesses, and in serious cases bring in a dedicated crash reconstruction team to determine speed and cause.
How long do fatal-crash investigations take?
Initial findings are usually available within days, but full reconstruction reports, toxicology results, and final determinations can take several weeks or longer.
What role does impairment play in fatal crashes?
Impairment from alcohol, drugs, or fatigue is a factor investigators routinely check for, but whether it played a role in any specific crash is determined only after toxicology and lab results are reviewed.
What to Do After a Rollover Crash in Godfrey, Illinois
If you're involved in or witness a rollover crash in a construction zone, call 911 immediately and stay clear of any exposed barriers or debris until responders arrive. Anyone involved should be evaluated by a medical professional even if injuries seem minor at first, since impacts from a rollover can cause internal injuries that aren't immediately obvious.
Once safety is addressed, file a report with the responding agency and request a copy for your own records. If you were a passenger or bystander, write down what you remember, including the time and general conditions, while it's still fresh. Godfrey's construction zones can shift quickly, so it's worth checking local traffic advisories before driving through the area again.
