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CALIMESA, Riverside County, Calif., Oct. 25, 2026 — A multi-vehicle crash shut down lanes on eastbound Interstate 10 near Singleton Road early Saturday morning, October 24, after one vehicle went down an embankment off the Singleton Road ramp, according to the California Highway Patrol.
The crash was first reported just after 12:37 a.m. as an open line with a vehicle blocking a lane, CHP radio traffic shows. Dispatchers logged reports of multiple vehicles involved on the freeway, with later updates describing four vehicles on the main roadway and a separate vehicle involved near the Singleton Road off-ramp. One report described a white sedan and a dark colored sedan involved in the initial collision.
A CHP log entry indicates the vehicles were initially believed to be racing or engaged in speed exhibition before the collision occurred, though that detail has not been independently confirmed. One vehicle reportedly went 10 to 15 feet down an embankment near the Singleton Road off-ramp, CHP logs show. A blue or green Toyota hybrid was flagged in dispatch traffic as a vehicle of interest, though its role in the crash has not been detailed publicly.
Cal Fire responded to the scene along with CHP units, and multiple tow trucks were requested for vehicles with major damage. All lanes were reported blocked for a period early in the response before being reopened in stages. The number one lane reopened by about 1:14 a.m., roughly 40 minutes after the initial report.
The incident remains under review. We hope everyone who was hurt makes a full recovery.
More on Crashes in Calimesa, CA
This multi-vehicle crash happened at I-10 and Singleton Road in Calimesa, CA. We cover crashes across Riverside County as they're reported, and you can browse the latest in our Riverside County accident reports.
Frequently Asked Questions
Which vehicles are most prone to rolling over?
Taller, narrower vehicles such as SUVs, pickup trucks and vans have a higher center of gravity and are more likely to roll over than low-slung passenger cars, especially during sharp maneuvers or when they leave the roadway.
Does wearing a seat belt matter in a rollover?
Yes. Seat belts keep occupants in place during a rollover and sharply lower the chance of being thrown from the vehicle or against the roof, which is one of the leading causes of serious injury in these crashes.
What is a "tripped" rollover?
A tripped rollover happens when a vehicle sliding sideways catches a curb, soft shoulder, guardrail or embankment, causing it to flip. Most rollovers on highways are tripped rather than caused by sharp steering alone.
What makes a rollover more likely on a freeway like I-10?
High speeds, sudden lane changes and loss of control after a collision can all send a vehicle off the paved roadway, where an embankment, shoulder or soft ground can cause it to tip or roll.
What to Do After a Multi-Vehicle Rollover Crash in Calimesa, CA
If you're involved in a crash involving multiple vehicles or a rollover, try to stay inside or near your vehicle only if it's safe, and move away from traffic lanes if you're able to walk. Call 911 right away so CHP and fire crews can assess injuries and manage traffic around the scene. Even if you feel fine, it's worth getting checked by a medical professional afterward, since injuries from a rollover or multi-vehicle impact aren't always immediately obvious. Take photos if it's safe to do so, get contact information from other drivers and witnesses, and request a copy of the CHP report once it's available for your records.
