Accident
High Severity
Resolved
CHP : Severe traffic alert and Traffic Collision on US-101 Northbound north of E Hillsdale Blvd (San Mateo). Right lanes blocked. Expect delays.
A high-severity accident was reported on US-101 N near San Mateo on July 2, 2026 at 11:46 PM.
Last Updated
3 weeks, 4 days ago
Jul 2, 5:45 PM
Coordinates
37.5461, -122.2892
Update History
3 observations
CHP : Severe traffic alert and Traffic Collision on US-101 Northbound north of E Hillsdale Blvd (San Mateo). Right lanes blocked. Expect delays.
Jul 2, 5:15 PM
CHP : Traffic Collision on US-101 Northbound north of E Hillsdale Blvd (San Mateo). Right lanes blocked. Expect delays.
Jul 2, 5:00 PM
CHP : Traffic Collision on US-101 Northbound south of E Hillsdale Blvd (San Mateo). Lane blocked. Expect delays.
Jul 2, 4:45 PM
Source: 511_sfbay · ID 511.org/1516216
First seen Jul 2, 2026 4:45 PM