Accident Moderate Severity Resolved

CHP : Traffic Collision on US-101 Northbound south of E Hillsdale Blvd (San Mateo). Left lanes blocked. Expect delays.

A injury accident was reported on US-101 N near San Mateo on November 3, 2026 at 4:45 AM.

Road

US-101 N

Area

San Mateo

Address

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Started

Nov 2, 8:45 PM

Last Updated

13 hours, 38 minutes ago

Nov 2, 10:00 PM

Resolved

Nov 3, 4:00 AM

Coordinates

37.5421, -122.2855

Update History

1 observations

CHP : Traffic Collision on US-101 Northbound south of E Hillsdale Blvd (San Mateo). Left lanes blocked. Expect delays. Nov 2, 9:00 PM

Source: 511_sfbay · ID 511.org/1572135 First seen Nov 2, 2026 9:00 PM