Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-280 Southbound north of Westborough Blvd (South San Francisco). Center lanes blocked. Expect delays.

A injury accident was reported on I-280 S near San Mateo on October 21, 2026 at 11:17 PM.

Road

I-280 S

Area

San Mateo

Address

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Started

Oct 21, 4:17 PM

Last Updated

6 days ago

Oct 21, 4:30 PM

Resolved

Oct 21, 10:45 PM

Coordinates

37.6498, -122.4524

Update History

1 observations

CHP : Traffic Hazard on I-280 Southbound north of Westborough Blvd (South San Francisco). Center lanes blocked. Expect delays. Oct 21, 4:30 PM

Source: 511_sfbay · ID 511.org/1566820 First seen Oct 21, 2026 4:30 PM