ACAMPO, San Joaquin County, Calif., Oct. 23, 2026 — Three vehicles collided on Thursday evening, October 22, on northbound Highway 99 near Collier Road. At least one person was reported hurt.
The California Highway Patrol said a sedan, an SUV, and a pickup truck were involved in the crash near the Collier Road overpass. Radio traffic from the scene described the vehicles spinning out and coming to rest in the center divider, with some facing the wrong way and sitting perpendicular to traffic.
Stockton Fire was called in as a precaution after the crash was first logged as having an injury of unknown severity. The call was later updated to a minor-injury collision. One of the vehicles, described as a Chevrolet Malibu, reportedly sustained right front tire and fender damage, and a tow was requested to remove it from the roadway.
Officers from the California Highway Patrol's Stockton-area office blocked the number 2 lane near Collier Road while they worked the scene, and a tow operator was brought in to clear the vehicles. All lanes were reported reopened by around 6:34 p.m.
No further details on the drivers or the cause of the crash had been released as of Thursday evening. The collision remains under investigation.
We hope those who were hurt recover fully and quickly.
More on Crashes in Acampo, CA
This multi-vehicle crash happened at Highway 99 and Collier Road in Acampo, CA. We cover crashes across San Joaquin County as they're reported, and you can browse the latest in our San Joaquin County accident reports.
Frequently Asked Questions
How does low visibility or glare contribute to multi-vehicle pile-ups?
When drivers can't see far ahead, whether from fog, glare, or darkness, they usually can't react in time to a slowdown or a vehicle that's already crashed. That delay is sometimes what turns a single crash into a chain-reaction one.
Why does following distance matter so much on highways like this one?
Leaving more space between vehicles gives a driver time to brake or steer around trouble. On a highway running close to 70 mph, a one-second gap in following distance can be the difference between stopping safely and rear-ending the car ahead.
Are secondary crashes common after an initial wreck?
Yes. Once a crash blocks a lane or sends vehicles into the roadway, oncoming traffic usually has little warning before it reaches the scene, which is why responders moved quickly to shut down a lane near Collier Road.
Why are three-vehicle crashes harder to sort out than two-car wrecks?
With more vehicles involved, investigators have more points of impact, more drivers' accounts, and more physical evidence to piece together before they can say how the chain of events started.
What to Do After a Multi-Vehicle Crash in Acampo, CA
If you're involved in a crash with multiple vehicles, try to move to a safe spot off the traffic lanes if your car is drivable, and turn on your hazards. Call 911 even if injuries seem minor, since some symptoms don't show up right away. Get checked out by a medical provider as soon as you can, exchange information with the other drivers if it's safe to do so, and ask responding officers how to get a copy of the collision report once it's filed. Keep track of any paperwork, photos, or medical notes from the days that follow, since they can help later if questions come up about what happened.
