Multi-Vehicle Crash Causes Major Highway Delays

Traffic Collision on US Highway 101 in San Mateo Causes Lane Blockage Today

📍 San Mateo, CA

📅 Published: September 25, 2025 at 12:04 AM

🔄 Updated: September 25, 2025 at 04:00 AM

Map showing the location of the accident in San Mateo, CA
San Mateo, September 24, 2025 -

A traffic collision involving three vehicles occurred today on the southbound lanes of US Highway 101 near the 3rd Avenue off-ramp in San Mateo, CA. The incident took place during the late evening hours and involved a black SUV, a green sedan, and a black sedan. One of the vehicles was found on its side, prompting a swift response from emergency services.

Initially, the traffic incident blocked lanes one through three, including the high-occupancy vehicle lane, causing significant delays and congestion for drivers in the area. Emergency responders quickly arrived on the scene to manage the situation and ensure safety.

A tow truck was called to assist with the removal of the vehicles involved in the crash. As emergency crews worked to clear the area, traffic began to back up, but updates confirmed that all lanes were reopened shortly after the incident. By early morning, traffic flow returned to normal, alleviating the earlier congestion.

Motorists traveling through the area are reminded to exercise caution and remain aware of their surroundings. This incident highlights the importance of safe driving practices, especially during busy travel times.

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