A traffic collision was reported at 4:07 p.m. Aug. 22, 2026, on northbound Interstate 15 near the 4th Street interchange. The dispatch indicated that an ambulance was en route to the scene.
The crash location was described as northbound I-15 north of 4th Street, in the area covered by the California Highway Patrol’s Rancho Cucamonga office. CHP did not provide information about the vehicles involved.
By 4:50 p.m., the fourth lane was reported blocked. The dispatch did not specify how long the lane would remain closed or whether traffic was being diverted.
CHP’s available information did not identify any confirmed injuries or provide details about the circumstances of the collision. The ambulance response was the only medical action listed in the dispatch updates.
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