Major Collision Causes Traffic Chaos on I-405

Traffic Collision on Interstate 405 South in Signal Hill Causes Delays Today

📍 Signal Hill, CA

📅 Published: September 3, 2025 at 02:31 AM

🔄 Updated: September 3, 2025 at 05:00 AM

Map showing the location of the accident in Signal Hill, CA
Signal Hill, September 3, 2025 -

A traffic collision involving two vehicles occurred today on Interstate 405 South near the Orange Avenue Off-Ramp in Signal Hill, CA. The incident took place in the early morning hours and involved a white Mercedes SUV and a silver Chevrolet. Both vehicles were blocking multiple lanes, leading to significant traffic disruptions.

Emergency response units quickly arrived on the scene to manage the situation and control traffic flow. A tow truck was requested to remove the vehicles, which were eventually towed from the scene. The presence of debris, including a large amount of glass on the roadway, added to the challenges faced by emergency responders.

As a result of the traffic incident, motorists experienced delays and congestion in the area. Lane closures were necessary to facilitate the removal of the vehicles and ensure safety for all drivers. Emergency crews worked diligently to clear the roadway and restore normal traffic conditions.

By mid-morning, the vehicles had been removed, and a police unit confirmed that all lanes were reopened. Traffic is expected to gradually return to normal as the situation stabilizes. Drivers are advised to remain cautious and stay updated on traffic conditions while traveling through this section of Interstate 405 South.

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