Major Collision Disrupts Traffic on I-405

Traffic Collision on Interstate 405 in Fountain Valley Causes Lane Closures Today

📍 Fountain Valley, CA

📅 Published: April 2, 2025 at 10:34 PM

🔄 Updated: April 3, 2025 at 12:01 AM

Map showing the location of the accident in Fountain Valley, CA
Fountain Valley, April 2, 2025 -

A significant traffic collision occurred today on southbound Interstate 405 (I-405) at the Magnolia off-ramp in Fountain Valley, CA. The incident involved three vehicles and was reported around 10:05 PM, leading to major traffic disruptions in the area. As emergency services responded, three lanes on the southbound I-405 and the Magnolia off-ramp were closed to manage the situation effectively.

Witnesses reported seeing smoke and traffic slowing down as the collision unfolded. Multiple emergency service units were dispatched to the scene to control traffic flow and assess the situation. A tow truck was requested to assist with the vehicles involved in the collision, including a semi-truck that ended up down an embankment.

Due to debris and gravel on the roadway, a street sweeper was also requested to ensure safe driving conditions. A signal alert was issued, warning motorists of the lane closures and potential delays for approximately one hour. Drivers in the area experienced significant backup and congestion as traffic was rerouted.

Motorists are advised to seek alternative routes and remain cautious while navigating around the affected area. The situation is being monitored, and updates will be provided as the scene is cleared.

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