Accident Moderate Severity Resolved

CHP : Traffic Hazard on US-101 Northbound south of E 3RD Ave (San Mateo). Left lane blocked. Expect delays.

A injury accident was reported on US-101 N near San Mateo on April 21, 2026 at 1:35 AM.

Road

US-101 N

Area

San Mateo

Address

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Started

Apr 20, 6:35 PM

Last Updated

6 months, 1 week ago

Apr 20, 6:45 PM

Resolved

Apr 21, 1:00 AM

Coordinates

37.5723, -122.3132

Update History

1 observations

CHP : Traffic Hazard on US-101 Northbound south of E 3RD Ave (San Mateo). Left lane blocked. Expect delays. Apr 20, 6:45 PM

Source: 511_sfbay · ID 511.org/1483865 First seen Apr 20, 2026 6:45 PM