FRONTENAC, St. Louis County, Mo., Nov. 6, 2026 — Two people died on Wednesday night, November 4, after a wrong-way crash involving three vehicles on westbound Interstate 64 in Frontenac. The crash happened east of North Ballas Road around 9:30 p.m., according to the Missouri State Highway Patrol.
A 25-year-old woman was driving a midsize car the wrong way in the westbound lanes when her vehicle collided head-on with a luxury car driven by a 30-year-old man. A third vehicle then rear-ended the man's car. Paramedics pronounced both the woman and the man dead at the scene, the report said. The driver of the third vehicle was not hurt.
Road crews shut down all westbound lanes of I-64 for several hours afterward to clear the wreckage, delaying traffic through the area overnight. The highway patrol has not released further details on what led the woman to enter the highway traveling in the wrong direction, and the crash remains under investigation.
We offer our deepest sympathy to the families of the victims.
More on Crashes in Frontenac, MO
This fatal crash happened on Interstate 64 in Frontenac, MO. We cover crashes across St. Louis County as they're reported, and you can browse the latest in our St. Louis County accident reports.
Frequently Asked Questions
What typically causes a driver to enter a highway going the wrong way?
It usually happens when a driver enters through an exit ramp instead of an entrance ramp, usually at night, and factors like impairment, confusion, or poor visibility can contribute. Investigators review ramp signage and driver history as part of determining the cause in any specific case.
Why are wrong-way crashes usually so deadly?
Because both vehicles are usually traveling at highway speed toward each other, the combined impact speed is much higher than in a typical rear-end or side-impact collision, which raises the chance of serious or fatal injury.
When do wrong-way crashes most commonly happen?
These crashes cluster late at night and in the early morning hours, when roads are darker, traffic is lighter, and a wrong-way driver may go unnoticed or uncorrected longer before a collision occurs.
What can drivers do if they spot a wrong-way vehicle?
Safety officials recommend moving to the right shoulder, slowing down, and calling 911 immediately to alert authorities, rather than attempting to flash lights or signal the oncoming driver directly.
