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FONTANA, San Bernardino County, Calif., Oct. 3, 2026 — A four-vehicle crash blocked traffic on Friday afternoon, October 2, at Merrill Avenue and Poplar Avenue in Fontana, according to the California Highway Patrol. The collision involved a Honda sedan, a Toyota Corolla, and two other vehicles.
The wreck was first reported shortly after 2 p.m. and was blocking the roadway. Units requested a tow truck to the scene a few minutes later, and all vehicles were eventually moved to the roadside as crews worked to clear the intersection.
It was not immediately clear how the collision happened or whether anyone was injured. The extent of any injuries has not been released.
The California Highway Patrol has not said whether any citations or further investigation are expected. No additional details were available as of Friday afternoon.
We wish those injured a full recovery.
Why Multi-Vehicle Pileups Do So Much Damage
A four-car crash is rarely one collision. It is usually several, stacked within seconds of each other, as vehicles arrive at a blocked lane faster than drivers can react. Each added impact adds its own closing speed, so a car stopped behind a crash can still be struck hard enough to total it, even though the original collision may have been minor.
Visibility plays a bigger role in these pileups than most drivers assume. Glare off wet pavement, smoke, dust, or a low sun angle can cut the distance a driver has to spot stopped traffic down to a second or two. By the time brake lights register, there may not be room left to stop, which is how a single fender-bender at an intersection can draw in two or three more vehicles before anyone gets clear.
Modern safety equipment, crumple zones, airbags, and anti-lock brakes, is built around a single, predictable impact. It is less effective when a vehicle is struck again from a different angle moments later. According to the National Highway Traffic Safety Administration, 28,595 large-truck occupants were injured in multi-vehicle crashes involving large trucks in 2023, a reminder that chain-reaction collisions remain common on ordinary roads, not just highways.
Frequently Asked Questions
How can drivers avoid getting pulled into a pileup?
Leave extra space ahead and watch traffic several cars forward, not just the vehicle directly in front. Slowing early when brake lights appear ahead gives following drivers time to react too.
What should I do if I'm stopped near a crash on a busy road?
Turn on hazard lights, stay buckled in if it's safe to remain in the vehicle, and move to the shoulder only if the car is drivable and it's safe to do so. Watch for approaching traffic before stepping out.
How does fog or glare contribute to these crashes?
Reduced visibility shortens the time a driver has to see stopped or slow traffic ahead. That usually turns one crash into several, as vehicles arrive too fast to stop in time.
Why does following distance matter so much?
More space between vehicles gives a driver time to brake instead of swerving or colliding with the car ahead when traffic suddenly stops.
What to Do After a Multi-Vehicle Crash in Fontana, CA
If you're involved in a multi-car collision, move to a safe spot if possible and check on others nearby before exchanging information. Call for medical evaluation even if injuries seem minor, since adrenaline can mask pain from whiplash or internal strain. Get a copy of the police report once it's filed, and keep photos of the scene and any vehicle damage for your records. Following up with a doctor in the days after, even without visible injury, is a good precaution.
