Major Traffic Disruption from Antioch Collision

Traffic Collision on State Route 4 East in Antioch Causes Delays Today

📍 Antioch, CA

📅 Published: September 20, 2025 at 10:06 AM

🔄 Updated: September 20, 2025 at 11:31 AM

Map showing the location of the accident in Antioch, CA
Antioch, September 20, 2025 -

A traffic collision occurred today on State Route 4 East at the Somersville Road South off-ramp in Antioch, CA, significantly impacting traffic flow during the morning commute. The incident involved three vehicles: a grey Nissan sedan, a dark grey Honda, and a red vehicle. As a result of the collision, some vehicles were rendered undrivable, requiring towing services to clear the scene.

Traffic was notably affected, with lane one and the right-hand side lanes blocked, leading to debris in the middle lane. This situation caused delays and congestion for drivers in the area, prompting the deployment of multiple emergency units for traffic management and scene control.

Emergency responders worked efficiently to manage the situation, ensuring that traffic was redirected safely around the collision site. Towing services arrived promptly to remove the vehicles involved, and the Department of Transportation Control Center was notified to assist with traffic flow.

By late morning, all lanes were confirmed to be open, allowing traffic to resume its normal flow. Motorists are advised to remain cautious and stay updated on traffic conditions. This incident highlights the importance of safe driving practices to prevent future accidents on California's busy roadways.

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