Accident Moderate Severity Resolved

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

A injury accident was reported on I-280 S near San Mateo on July 4, 2026 at 4:05 PM.

Road

I-280 S

Area

San Mateo

Address

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Started

Jul 4, 9:05 AM

Last Updated

3 months, 3 weeks ago

Jul 4, 9:15 AM

Resolved

Jul 4, 3:15 PM

Coordinates

37.6498, -122.4524

Update History

1 observations

CHP : Traffic Hazard on I-280 Southbound north of Westborough Blvd (South San Francisco). Lane affected. Expect delays. Jul 4, 9:15 AM

Source: 511_sfbay · ID 511.org/1516710 First seen Jul 4, 2026 9:15 AM