Accident High Severity Resolved

CHP : Disabled vehicle on I-280 Northbound exiting at Avalon Dr (South San Francisco). Off Ramp blocked. Expect delays.

A high-severity accident was reported on I-280 N near San Mateo on September 28, 2026 at 9:18 PM.

Road

I-280 N

Area

San Mateo

Address

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Started

Sep 28, 2:18 PM

Last Updated

4 weeks ago

Sep 28, 3:30 PM

Resolved

Sep 28, 9:45 PM

Coordinates

37.6372, -122.4399

Update History

3 observations

CHP : Disabled vehicle on I-280 Northbound exiting at Avalon Dr (South San Francisco). Off Ramp blocked. Expect delays. Sep 28, 3:15 PM

CHP : Disabled vehicle on I-280 Northbound exiting at Avalon Dr (South San Francisco). Off Ramp blocked. Expect delays. Sep 28, 2:45 PM

CHP : Disabled vehicle on I-280 Northbound exiting at Avalon Dr (South San Francisco). Off Ramp blocked. Expect delays. Sep 28, 2:30 PM

Source: 511_sfbay · ID 511.org/1555958 First seen Sep 28, 2026 2:30 PM