Major Traffic Disruption from Semi Truck Collision

Traffic Collision on State Route 92 in San Mateo Causes Lane Closures Today

📍 San Mateo, CA

📅 Published: June 2, 2025 at 06:32 AM

🔄 Updated: June 2, 2025 at 11:00 AM

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

A traffic collision involving a semi truck and its fully loaded trailer occurred today on the westbound State Route 92 connector to southbound U.S. Highway 101 in San Mateo, CA. The incident, which took place during the morning commute, has resulted in significant traffic disruptions, including lane closures and debris scattered across the roadway.

Emergency response teams quickly arrived at the scene to manage the situation. Tow trucks were dispatched to assist with the cleanup and to remove the overturned trailer, which was blocking the transition from State Route 92 to U.S. Highway 101. As a result of the collision, traffic management authorities issued a SigAlert, indicating that the westbound State Route 92 to southbound U.S. Highway 101 will remain closed for several hours, with an estimated reopening time around noon.

Additionally, one lane on the southbound U.S. Highway 101 connector to State Route 92 is also closed during this time. Motorists are advised to expect delays and plan for potential backups in the area as cleanup efforts continue. Traffic management is actively working to establish alternate routes to minimize congestion.

The situation is being monitored closely, and updates will be provided as they become available. Drivers are encouraged to stay informed and exercise caution while navigating the affected area.

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