Major Traffic Delays After Highway 101 Collision

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

📍 San Mateo, CA

📅 Published: September 25, 2025 at 09:34 PM

Map showing the location of the accident in San Mateo, CA
San Mateo, September 25, 2025 -

A traffic collision involving three vehicles occurred today on US Highway 101 North near the Hillsdale Boulevard on-ramp in San Mateo, CA. The incident took place around 8:15 PM and involved a tan SUV, a black Mitsubishi truck, and a smaller black SUV. The collision resulted in a blockage of the slow lane, leading to traffic delays and congestion for motorists in the area.

Emergency response units were dispatched promptly to manage the scene and facilitate traffic control. By 9:01 PM, a tow truck was called to assist with the removal of the vehicles involved in the traffic incident. As the scene was cleared, traffic flow began to improve, and motorists were advised to exercise caution while navigating the area.

The blockage in the slow lane caused significant delays, but reports indicated that traffic conditions were gradually returning to normal as the vehicles were moved to the side of the highway. Drivers are reminded to remain alert and drive safely, particularly during peak traffic hours.

For ongoing updates on traffic incidents and road conditions, local news sources will provide the latest information.

Were you or someone you know involved in this accident?

If you would like the full incident log, we can send it to you directly.

Request Full Incident Log

Disclaimer

The content on this website is auto-generated and based on publicly available information. While we strive to provide accurate and timely updates, we cannot guarantee the accuracy, completeness, or reliability of the information presented. This content is for informational purposes only and should not be used as the basis for decision-making. We encourage you to independently verify any facts or details. For the most accurate and up-to-date information, please contact the California Highway Patrol (CHP) directly. The website and its owners are not responsible for any errors, omissions, or actions taken based on the information provided.