Major Traffic Collision on U.S. Highway 101

Traffic Collision on U.S. Highway 101 in San Mateo Causes Delays Today

📍 San Mateo, CA

📅 Published: September 2, 2025 at 10:03 PM

🔄 Updated: September 3, 2025 at 01:30 AM

Map showing the location of the accident in San Mateo, CA
San Mateo, September 2, 2025 -

A traffic collision occurred today on the northbound lanes of U.S. Highway 101 near the State Route 92 East interchange in San Mateo, CA. The incident involved four vehicles, including a black sports-type vehicle, a severely damaged Hyundai Elantra, a Honda Civic with significant rear-end damage, and a black Mercedes.

Emergency response teams quickly arrived at the scene to manage traffic and ensure safety. The collision resulted in temporary lane blockages, leading to delays and congestion for motorists in the area. Tow requests were initiated for the damaged vehicles, indicating that some required towing services.

Traffic was significantly impacted as multiple lanes were blocked for a period while emergency crews worked to clear the scene. By approximately 11:11 PM, all lanes were reopened, allowing traffic to resume its normal flow.

Motorists traveling through this area should remain vigilant and expect potential delays as cleanup efforts were underway. The California Highway Patrol was present to assist with traffic management and ensure the safe removal of the vehicles involved in this traffic incident.

Drivers are encouraged to seek alternative routes if possible to avoid congestion in the affected area.

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