Major Traffic Disruption on I-405 South

Traffic Collision on Interstate 405 South in Costa Mesa Causes Delays Today

📍 Costa Mesa, CA

📅 Published: September 15, 2025 at 11:30 PM

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

A traffic collision on Interstate 405 South in Costa Mesa, CA, caused significant traffic disruptions today. The incident occurred around 8:42 PM when a Lexus collided with a guardrail, blocking the slow lane and leading to lane closures. Emergency units were quickly dispatched to the scene to manage traffic and ensure safety while the area was cleared.

As a result of the collision, motorists faced delays and congestion in the vicinity, particularly during the evening rush hour. Witnesses reported that two individuals were involved in a physical altercation at the scene, prompting further emergency response. A tow truck was called to remove the Lexus, which was obstructing the roadway and contributing to traffic backup.

Traffic management teams worked diligently to redirect vehicles and minimize the impact on traffic flow. By 10:12 PM, the owner of the Lexus inquired about the vehicle's towing location, indicating ongoing efforts to resolve the situation.

Drivers in the area were advised to seek alternate routes to avoid delays caused by the traffic incident. The scene was cleared later in the evening, allowing normal traffic patterns to resume. This incident serves as a reminder for drivers to remain vigilant and cautious while navigating busy highways, especially during peak travel times.

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