Major Collision Disrupts Traffic on SR-4

Traffic Collision on State Route 4 in Discovery Bay Causes Significant Delays Today

📍 Discovery Bay, CA

📅 Published: August 14, 2025 at 10:34 AM

🔄 Updated: August 14, 2025 at 02:01 PM

Map showing the location of the accident in Discovery Bay, CA
Discovery Bay, August 14, 2025 -

A significant traffic collision occurred today on State Route 4 (SR-4) in Discovery Bay, CA, involving two vehicles: a silver Silverado pickup and a white Toyota Camry. The incident was reported around 10:20 AM and has resulted in both eastbound and westbound lanes being blocked, causing major traffic disruptions.

Emergency services responded promptly to manage the scene and implemented one-way traffic control to facilitate the clearance of the roadway. As a result of the traffic incident, motorists are experiencing considerable delays and congestion in the area. A SigAlert was issued to inform drivers of the situation and to advise them to seek alternative routes.

By 12:02 PM, eastbound traffic was reopened, although westbound lanes remained closed, contributing to ongoing backups. The California Highway Patrol and local emergency units are actively working to clear the vehicles involved and restore normal traffic flow. Updates on traffic conditions will be provided as the situation develops.

Motorists traveling through Discovery Bay should remain cautious and be prepared for potential delays as emergency crews continue to manage the aftermath of this traffic collision. It is advisable to stay tuned for further updates regarding traffic conditions in the area.

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