Firefighters rushed to a two-vehicle crash on northbound Interstate 15 just south of the 6th Street off-ramp in Norco on Saturday afternoon, where one patient suffering major injuries was loaded onto a ground ambulance while a second patient with minor injuries declined further treatment at the scene.
The collision was reported at 4:50 p.m., according to CAL FIRE/Riverside County Fire Department
, which said crews closed lanes number 2 and number 3 on northbound I-15 while they worked the scene.
Once patient care and transport wrapped up, CAL FIRE handed the investigation over to the California Highway Patrol, which holds primary statutory authority over collision investigations on California freeways. The agency pointed drivers to CHP traffic updates for the latest on lane reopenings, but did not release information on what caused the crash, whether speed or a lane change played a role, or the updated condition of the patient with major injuries — details that remain unknown as of Sunday evening.
A Stretch of Freeway With a Troubled History
This isn't the first time this exact patch of northbound I-15 has seen a serious incident. In September 2024, a horse trailer collided with a guardrail at the same location near 6th Street. Witnesses reported several horses in the traffic lanes, and one horse may have been struck by a car. Web search results described a sequence beginning with a vehicle towing a trailer striking a guardrail and involving multiple vehicles and a horse, according to Patch.
The 6th Street off-ramp area has also been mentioned in reports about law-enforcement activity. Reports have described pursuits ending in Norco, but the available information does not establish that one ended south of 6th Street. Together, the incidents point to a corridor that can experience major closures and disrupt one of the region's busiest commuter routes.
A Bottleneck Built for Heavy Traffic
Part of the reason this stretch sees so much volume traces back to regional highway infrastructure. The corridor includes highway facilities, although the available information here does not establish the cost, length, communities served, alignment, opening dates, function, or traffic effects of any expansion project.
For the City of Norco, 6th Street is the location of an Interstate 15 interchange, where lane closures can affect local travel.
Riverside County's Broader Speed Problem
Saturday's crash occurred in Riverside County, California.
CAL FIRE/Riverside County Fire Department responded to the crash, but the available information does not identify the responding station or its response territory. No further updates on the crash or the injured patient's condition had been released as of Sunday evening.
