Multiple people were injured after a multi-vehicle crash sent a big rig down an embankment in the Cajon Pass, San Bernardino County, early Wednesday morning, August 5, 2026.
According to the California Highway Patrol, the collision was reported around 1:51 a.m. on the northbound Interstate 15 near State Route 138.
Initial reports indicated a four-door sedan collided with a semi-truck pulling a trailer. Investigators later determined the crash involved three vehicles.
The semi-truck left the roadway, traveled down the right shoulder, and came to rest upright approximately 20 to 30 feet below the freeway with both dump-style trailers still attached.
Authorities reported multiple injuries, including a juvenile female who was transported to a hospital.
The CHP Inland Division continues to investigate the cause of the collision.
How Truck Accident Lawyers Can Help
Truck accidents can cause devastating injuries, particularly when a large commercial vehicle leaves the roadway or overturns. Victims and their families may benefit from legal guidance to understand their rights and explore their options.
Truck accident lawyers can help by investigating the crash, gathering evidence such as driver logs and vehicle inspection records, and determining liability among the parties involved, including the driver, the trucking company, or other responsible parties. They may also assist in pursuing compensation for medical expenses, lost income, pain and suffering, and other damages, where applicable.
Call (888) 488-1391 or complete our “Do I Have A Case?” form to schedule a free initial consultation.

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