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SAN PABLO, Contra Costa County, Calif., Sept. 23, 2026 — A multi-vehicle crash involving a truck with a trailer shut down lanes on westbound Interstate 80 at El Portal Drive Tuesday afternoon, September 22, according to the California Highway Patrol.
Authorities reported that a truck pulling a trailer collided with a white SUV and two to three other vehicles, with four to five vehicles involved in total. The crash was first logged shortly before 3:41 p.m. and initially blocked the right lane before spreading to lanes 4 and 5.
Fire crews responded to the scene and were dispatched for a reported fire around 3:41 p.m., the CHP log shows. By 3:54 p.m., dispatch notes indicated the fire response was blocking lanes 3 and 4 as crews worked at the scene.
An ambulance service was also called to the scene and was reported blocking a lane shortly before 3:47 p.m.
The circumstances that led to the pileup are still under investigation. We hope those who were hurt recover fully.
Truck Crashes and the Toll on People Outside the Vehicle
According to the Insurance Institute for Highway Safety, 17,008 motor-vehicle crash deaths occurred outside passenger vehicles in crashes involving passenger vehicles in 2023. That figure includes occupants of other vehicles, including trucks, as well as pedestrians and cyclists, and it points to how much of the harm in a crash falls on people who are not in the car or truck primarily at fault.
When a loaded truck and trailer collide with several smaller vehicles, the size and weight gap plays a large role in who gets hurt and how badly. A commercial truck can weigh 20 to 30 times more than a passenger car, so the smaller vehicles in a pileup typically absorb more of the force.
Multi-vehicle crashes involving trucks also tend to take longer to clear because of fluid spills, cargo shifts, or fire risk, which is part of why lane closures in incidents like this one often stretch on for an extended period after the initial collision.
Frequently Asked Questions
Does driver fatigue contribute to truck crashes?
Fatigue is a recognized factor in commercial truck crashes. Federal hours-of-service rules limit how long drivers can be on the road without rest, but long hauls and tight schedules still contribute to drowsy driving incidents.
What should I do after a crash with a commercial truck?
Move to a safe location if possible, call 911, and wait for law enforcement to document the scene. Get checked by a medical provider even if injuries seem minor, since some symptoms take hours to appear.
Why do trucks need so much room to stop?
A fully loaded truck can take twice the distance or more to stop compared to a passenger car, due to its weight and longer braking systems. This is a major reason rear-end and multi-vehicle pileups often involve trucks unable to slow down in time.
What makes truck accidents more dangerous than car crashes?
The size and weight difference between trucks and passenger vehicles means occupants of smaller cars usually bear more of the impact. Trailers can also jackknife or shift cargo, adding risk beyond the initial collision.
What to Do After a Multi-Vehicle Crash in San Pablo, CA
If you're involved in or witness a multi-vehicle crash, stay in your vehicle if it's unsafe to exit into traffic, and turn on hazard lights. Call 911 to report injuries and request medical help promptly, since pileups can involve people who are trapped or slow to notice their own injuries.
Once you're safe, seek a medical evaluation even if you feel fine. Adrenaline can mask pain from soft-tissue injuries or internal trauma for hours. Keep a record of any symptoms that develop in the days after the crash, and follow up with a doctor if anything feels off.
