Patterson, CA (May 2, 2026) – A semi-truck rollover crash shut down both directions of Interstate 5 on Friday morning near Patterson. The incident occurred shortly before 10:00 a.m. just north of Sperry Avenue.
Emergency units responded to the scene and found the overturned truck on its side in the median. Investigators said the driver turned left for unknown reasons and entered the median before attempting to regain control, causing the truck to overturn.
A 43-year-old man from Bakersfield who was inside the sleeper area of the truck suffered major injuries. He was taken to a hospital by helicopter. The driver, a 58-year-old man from Fillmore, sustained minor injuries and was also taken to a hospital.
The truck was hauling refrigerated liquid hydrogen, and reports of a gas odor led to a full closure of the interstate in both directions. Crews worked to secure the scene before reopening southbound lanes around 1:30 p.m. Northbound lanes reopened later in the afternoon.
Authorities continue to investigate the cause of the crash, and more details will be released as soon as they become available.
We are thinking of those injured as they receive medical care.
How Hazardous Cargo Can Affect Highway Crash Response
When a crash involves a vehicle carrying hazardous materials, the response process can become significantly more complex than a standard collision. Substances like liquid hydrogen require careful and highly specialized handling due to serious potential risks such as leaks, vapor release, or ignition, all of which can pose an immediate danger to anyone in the surrounding area.
Emergency crews may close roads and establish a safe perimeter while they assess the full scope of the situation, keeping bystanders and non-essential personnel at a safe distance until the scene is properly evaluated. Specialized hazmat teams are often called to the scene to identify the cargo, assess containment integrity, and determine whether any material has been released into the environment. The type and volume of material being transported can significantly influence how long a roadway remains closed, as some substances require extensive decontamination procedures before the area is considered safe.
Cleanup, neutralization, and thorough safety checks must all be completed and verified before traffic can resume, which in serious cases can result in extended closures lasting several hours or longer.
