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SAN DIMAS, Los Angeles County, Calif., Nov. 11, 2026 — Two vehicles collided on northbound State Route 57 near the Via Verde off-ramp on Tuesday morning, November 10, according to the California Highway Patrol. The crash left at least one car blocking a lane of traffic and prompted a report of unknown injuries.
The California Highway Patrol describes a white sedan and a gray SUV involved in the collision, with the vehicles initially reported in the carpool lane before coming to rest in the center divider. One car ended up sideways, partly blocking the number one lane. The incident was first logged as a collision with unknown injuries before CHP updated it to reflect that medical personnel were en route.
Firefighters responded and worked to hold traffic from multiple lanes while crews cleared the scene, the log shows. A tow company was called to remove the vehicles, and all lanes except the number one lane had reopened by midmorning. The California Highway Patrol's Freeway Service Patrol closed out its response to the crash by midmorning as well.
No further details on the extent of injuries, the number of people involved, or a possible cause have been released. The crash remains under investigation.
We hope those who were hurt recover fully and quickly.
More Crash News from Los Angeles County
This crash happened on State Route 57 in San Dimas, CA. For other recent crashes near San Dimas, CA, visit our Los Angeles County accident news page.
Frequently Asked Questions
Why is distracted driving a serious risk on freeways like SR-57?
At freeway speeds, a driver who looks away for even a few seconds can travel the length of a football field without seeing traffic slow or stop ahead, leaving little time to react.
How can weather or road conditions play a role in crashes like this one?
Wet pavement, glare, or heavy traffic can make it harder for drivers to judge following distance and stop safely, especially in lanes like the carpool lane where speeds tend to be higher.
What should drivers do immediately after a crash on a freeway?
Drivers should move to a safe location if possible, turn on hazard lights, check for injuries, and call 911 before exchanging information or waiting for CHP to arrive.
Where do most traffic crashes tend to happen?
Many crashes occur at or near freeway interchanges and off-ramps, where merging, lane changes, and speed differences among vehicles increase the risk of a collision.
