St. Charles, MO (July 23, 2026) – A two-vehicle collision left one driver hurt after a turning vehicle failed to yield along southbound MO-79 at Old MO-79 in St. Charles County.
According to the Missouri State Highway Patrol, the wreck occurred at about 7:05 p.m. on Tuesday, July 21. Investigators said a 2008 Cadillac Escalade was turning left onto Old MO-79 when it failed to yield to an oncoming 2024 Rivian EDV traveling south. The front of the Cadillac struck the passenger side of the Rivian.
The 32-year-old man driving the Rivian, from Lake St. Louis, was wearing a seat belt and was reported to have moderate injuries. He was taken to SSM Health St. Joseph Hospital–Lake Saint Louis by emergency units. The 48-year-old O’Fallon man driving the Cadillac was also wearing a seat belt. Both vehicles were heavily damaged and removed from the roadway by a towing service. No additional details about those involved were immediately available.
The cause of the collision remains under review as investigators continue gathering information.
We hope the person hurt in this crash makes a full and speedy recovery.
Why Failure-to-Yield Crashes at Intersections Can Be Serious
Failure-to-yield collisions commonly happen at intersections or when one vehicle turns across the path of another. These crashes can be especially severe because the struck vehicle may have little time to slow down or avoid contact. Side-impact damage, sometimes called a T-bone strike, can expose occupants to significant force, particularly when the point of contact is near the passenger compartment.
Investigators reviewing this type of roadway collision commonly examine traffic controls, vehicle positions, driver statements, visibility, and any available video footage. Physical evidence such as skid marks and vehicle damage may also help explain how the vehicles came together. Medical records documenting injuries can provide additional insight into the severity of the crash while supporting a clearer understanding of its overall effects.
