Major Collision Causes Traffic Chaos on Highway 101

Traffic Collision on US Highway 101 in South San Francisco Causes Delays Today

📍 South San Francisco, CA

📅 Published: May 28, 2025 at 09:06 AM

🔄 Updated: May 28, 2025 at 10:31 AM

Map showing the location of the accident in South San Francisco, CA
South San Francisco, May 28, 2025 -

A significant traffic collision occurred today on US Highway 101 North near the Bayshore Boulevard off-ramp in South San Francisco, CA. The incident involved four vehicles: a blue Prius, a charter bus, a white sedan, and a dark-colored SUV.

During the morning commute, the collision led to the temporary closure of lanes 4 and 5, resulting in considerable traffic delays and congestion for drivers in the area. Emergency response units were dispatched promptly to manage the scene and direct traffic, ensuring safety while the situation was being handled. A tow truck was called to assist with the removal of at least one vehicle, which sustained major damage.

At approximately 8:32 AM, a SigAlert was issued, warning motorists to expect delays of around 45 minutes as crews worked to clear the roadway. Traffic was significantly backed up, affecting the flow of vehicles on this busy highway.

By 9:22 AM, all lanes were reported clear, and the SigAlert was canceled, allowing traffic to resume its normal flow. Motorists are advised to remain cautious and aware of changing road conditions following this traffic incident.

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