An overturned semi-truck spilled what appeared to be gravel across the northbound 5 Freeway in Irvine on Friday morning, forcing the closure of most lanes and causing significant traffic delays, according to local reports.
The crash occurred near Jamboree Road, where the truck overturned and scattered its load across the roadway. Images from the scene showed the overturned vehicle blocking much of the freeway, leaving the high-occupancy vehicle (HOV) lane as the only reported northbound lane open during the initial response.
The California Highway Patrol responded to the incident as crews worked to manage traffic and address the debris spread across the highway. The closures disrupted the morning commute, with traffic backing up behind the crash site.
Lane Closures and Traffic Delays
Officials initially indicated that the affected lanes could reopen by 10 a.m. However, the closure was later extended until further notice as response and cleanup operations continued. <Cite refs={[“turn845901search0″,”turn845901search5”]}/>
Motorists travelling north through Irvine were urged to allow additional time, monitor official traffic updates and consider alternative routes where possible.
The California Department of Transportation reported that northbound traffic was reduced to one lane near Jamboree Road because of a traffic collision. Drivers can check current conditions through the state’s official highway information service. <Cite refs={[“turn845901search3″,”turn845901search4”]}/>
Cause of the Crash Under Investigation
Authorities have not confirmed what caused the semi-truck to overturn. The incident occurred during a period of strong Santa Ana winds in Southern California, which can pose risks to high-profile vehicles. However, officials have not established that wind contributed to this crash. <Cite refs={[“turn845901search0”]}/>
A separate report said a hazardous-materials cleanup was underway, although the exact substance involved had not been identified in the available reporting. No injuries were reported in that account. <Cite refs={[“turn845901search5”]}/>
Latest Update
The overturned truck caused substantial disruption on the northbound 5 Freeway near Jamboree Road. Drivers should consult the California Highway Patrol and Caltrans for confirmed updates on lane availability and reopening times.
Further details about the driver and the circumstances of the crash have yet to be confirmed.