Traffic Collision on US 101 Causes Major Delays

Traffic Collision on US Highway 101 in San Mateo Causes Delays Today

📍 San Mateo, CA

📅 Published: August 12, 2025 at 04:01 PM

Map showing the location of the accident in San Mateo, CA
San Mateo, August 12, 2025 -

A traffic collision on US Highway 101 North in San Mateo, CA, caused significant disruptions to traffic flow today. The incident, which occurred around 2:54 PM, involved two vehicles: a gray Subaru Crosstrek and a green Toyota RAV4. Following the crash, lanes one and two were blocked, leading to delays for drivers in the area.

Emergency response teams quickly arrived to manage the scene. A tow truck was called to assist with a damaged vehicle, a Toyota Highlander, which was involved in the incident. Traffic management units were deployed to control the flow of vehicles and alleviate congestion as responders worked to clear the roadway.

By approximately 3:21 PM, emergency personnel were able to move the damaged vehicles to Dore Avenue, allowing all lanes to reopen. Despite the swift response, motorists experienced delays and backups during the afternoon traffic period.

Drivers are advised to remain cautious and expect potential residual congestion as traffic returns to normal. The California Highway Patrol continues to monitor the situation to ensure safety on the roads. For updates on traffic conditions and incidents, motorists are encouraged to check local traffic reports.

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