Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on I-280 Northbound south of Avalon Dr (South San Francisco). Right shoulder affected. Expect delays.

A injury accident was reported on I-280 N near San Mateo on November 1, 2026 at 3:31 PM.

Road

I-280 N

Area

San Mateo

Address

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Started

Nov 1, 7:31 AM

Last Updated

10 hours, 42 minutes ago

Nov 1, 8:00 AM

Resolved

Nov 1, 2:15 PM

Coordinates

37.6369, -122.4397

Update History

5 observations

CHP : Traffic Collision with Injuries on I-280 Northbound south of Avalon Dr (South San Francisco). Right shoulder affected. Expect delays. Nov 1, 7:45 AM

CHP : Traffic Collision with Injuries on I-280 Northbound south of Avalon Dr (South San Francisco). Right shoulder affected. Expect delays. Nov 1, 7:15 AM

CHP : Traffic Collision with Injuries on I-280 Northbound south of Avalon Dr (South San Francisco). Right shoulder affected. Expect delays. Nov 1, 7:00 AM

CHP : Traffic Collision with Injuries on I-280 Northbound south of Avalon Dr (South San Francisco). Right shoulder affected. Expect delays. Nov 1, 6:45 AM

CHP : Traffic Collision with Injuries on I-280 Northbound south of Avalon Dr (South San Francisco). Right shoulder affected. Expect delays. Nov 1, 6:15 AM

Source: 511_sfbay · ID 511.org/1571485 First seen Nov 1, 2026 6:15 AM