Major Collision Blocks Lanes on State Route 91

Traffic Collision on State Route 91 West in Riverside Causes Lane Closures Today

📍 Riverside, CA

📅 Published: September 15, 2025 at 02:34 PM

Map showing the location of the accident in Riverside, CA
Riverside, September 15, 2025 -

A traffic collision occurred today on State Route 91 West at the intersection of La Sierra Avenue in Riverside, CA, involving four vehicles: a white semi-truck, a silver Porsche, a black sedan, and a black Toyota. The incident was reported around 12:33 PM, leading to significant traffic disruptions as three lanes were blocked.

California Highway Patrol units quickly responded to the scene to manage traffic and ensure safety. The vehicles involved remained on-site, with some awaiting towing. As a result of the collision, motorists experienced delays and congestion, particularly affecting the afternoon commute.

Traffic conditions worsened as emergency crews worked to clear the scene, prompting the issuance of a signal alert to inform drivers of the ongoing situation. Motorists were advised to seek alternate routes to avoid backups and delays.

By approximately 1:55 PM, tow trucks were on their way to assist with the removal of the vehicles. The California Highway Patrol continued to monitor the situation, providing updates on traffic flow and lane availability. Commuters should expect extended travel times in the area until the incident is fully resolved.

As the afternoon progresses, updates will be provided regarding the reopening of lanes and the conclusion of this traffic incident.

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