Major Traffic Disruption on US Highway 101

Traffic Collision on US Highway 101 South in San Rafael Causes Lane Closures Today

📍 San Rafael, CA

📅 Published: June 4, 2025 at 04:30 AM

🔄 Updated: June 4, 2025 at 05:31 AM

Map showing the location of the accident in San Rafael, CA
San Rafael, June 4, 2025 -

A traffic collision on US Highway 101 South in San Rafael, CA, caused significant traffic disruptions today during the early morning hours. The incident occurred around 3:39 AM and involved a single vehicle, described as a black unknown model, which overturned and blocked the San Pedro off-ramp. The vehicle also spilled oil or coolant onto the roadway, leading to the closure of lanes three and four, while lanes one and two remained open for traffic.

Emergency response teams arrived promptly to manage the scene and direct traffic. Crews worked diligently to secure the area and mitigate hazards caused by the spilled fluids. By approximately 5:05 AM, all lanes were reported to be open, allowing traffic to resume normal flow.

Motorists in the vicinity experienced delays and potential backups as responders worked to clear the roadway. This incident highlights the importance of safe driving practices, especially during early morning commutes when visibility may be reduced.

The California Highway Patrol encourages drivers to remain alert and cautious to prevent future traffic incidents.

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