Rancho Cucamonga, CA (September 5, 2025) – A deadly multi-vehicle crash involving a semi-truck claimed the life of one individual late Tuesday night in Rancho Cucamonga. The fatal collision was reported around 10:12 p.m. on the southbound lanes of the I-15 Freeway near the Foothill Blvd exit, according to the California Highway Patrol.
Authorities stated that a 4-door sedan collided with the rear of a semi-truck under unclear circumstances. The impact was severe, causing the sedan to become wedged underneath the trailer. Emergency crews arrived quickly and discovered an occupant trapped inside the crushed vehicle.
Tragically, the individual inside the sedan did not survive the crash and was pronounced dead at the scene. A white Chevrolet van was also involved in the pileup, though it was not immediately clear if additional injuries occurred.
CHP officers secured the scene and began an in-depth investigation into what may have led to the fatal collision. The crash caused significant delays along the southbound I-15 overnight as responders worked to clear the wreckage and document the scene.
We extend our deepest condolences to the loved ones of the victim during this heartbreaking time.
Fatal Truck Accidents in California
Crashes involving semi-trucks are often catastrophic due to the size and weight disparity between commercial vehicles and passenger cars. The fatal collision that occurred Tuesday night on I-15 near Foothill Blvd is a tragic reminder of just how devastating these incidents can be. In this case, the sedan was lodged beneath the trailer—an outcome that frequently results in severe or fatal injuries due to the lack of protection in under-ride collisions.
Rancho Cucamonga sits along a busy corridor for commercial transportation, with I-15 serving as a major freight route. Accidents involving big rigs often occur during nighttime hours, when visibility is reduced and fatigue may become a factor for drivers. These conditions can turn a momentary lapse into a life-altering tragedy.
For families left behind, the aftermath of a fatal crash is overwhelming. Beyond the emotional toll, there are often sudden financial burdens, legal questions, and the need for investigative clarity. Understanding your rights and accessing appropriate support services is vital for navigating such a difficult time.
If someone you love has died in a crash involving a semi-truck, there are resources available to help you find answers and pursue the justice your family deserves.
Losing a loved one in a truck crash is devastating. At Local Accident Reports, we’re here to provide compassionate support and guidance for families dealing with the aftermath. From connecting you with investigative resources to helping you understand your next legal steps, our team is here to walk beside you. Contact us today to learn how we can support you through this difficult journey.