Accident
High Severity
Resolved
CHP : Severe traffic alert and Traffic Collision on US-101 Southbound north of E Poplar Ave (San Mateo). Left lanes blocked. Expect delays.
A high-severity accident was reported on US-101 S near San Mateo on July 17, 2026 at 12:35 AM.
Last Updated
1 week, 4 days ago
Jul 16, 5:45 PM
Resolved
Jul 17, 12:00 AM
Coordinates
37.5847, -122.3292
Update History
2 observations
CHP : Severe traffic alert and Traffic Collision on US-101 Southbound north of E Poplar Ave (San Mateo). Left lanes blocked. Expect delays.
Jul 16, 5:45 PM
CHP : Traffic Collision with Injuries on US-101 Southbound south of Broadway (Burlingame). 2nd lane from the left blocked. Expect delays.
Jul 16, 5:30 PM
Source: 511_sfbay · ID 511.org/1522130
First seen Jul 16, 2026 5:30 PM