Accident Moderate Severity Resolved

CHP : Traffic Collision 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 June 21, 2026 at 12:19 AM.

Road

I-280 S

Area

San Mateo

Address

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Started

Jun 20, 5:19 PM

Last Updated

4 months, 1 week ago

Jun 20, 5:30 PM

Resolved

Jun 20, 11:45 PM

Coordinates

37.6498, -122.4524

Update History

1 observations

CHP : Traffic Collision on I-280 Southbound north of Westborough Blvd (South San Francisco). Lane affected. Expect delays. Jun 20, 5:30 PM

Source: 511_sfbay · ID 511.org/1511052 First seen Jun 20, 2026 5:30 PM