Hacienda Heights, CA (August 2, 2026) – A major multi-vehicle collision blocked several lanes along eastbound SR-60 just west of S Hacienda Boulevard in Hacienda Heights on July 31, prompting a large emergency response. Initial reports indicated that at least three vehicles were involved, though later updates showed the pileup had grown to include five vehicles.
Dispatch information indicated one vehicle went down an embankment while others came to rest in the HOV lane, middle lanes, and right shoulder. A blue Ford Escape, a red Lexus, a white sedan, a gray sedan, and a 2026 Toyota Corolla were among the vehicles mentioned in the initial reports. Callers also reported that the red Lexus had been traveling at a high rate of speed before the collision, although investigators have not confirmed that information.
Emergency units arrived at the roadway, where traffic was temporarily stopped while crews assisted those involved and arranged for multiple tow trucks to remove the heavily damaged vehicles.
The cause of the crash remains under investigation as additional details become available.
We hope everyone involved makes a full and speedy recovery.
Why Can Multi-Vehicle Freeway Crashes Become So Complex?
Chain-reaction collisions on busy freeways often pose challenges because several vehicles can become involved within seconds. Heavy traffic, sudden braking, limited stopping distance, and changing lane positions can all contribute to additional vehicles being caught in the sequence. Investigators typically examine roadway markings, vehicle damage, witness statements, traffic camera footage, and electronic data from newer vehicles to better understand how the sequence unfolded. Weather, visibility, and traffic flow may also be reviewed as part of the overall evaluation. Because multiple drivers and vehicles are involved, gathering all available information can take time before a complete picture of what happened is established.