Accident High Severity Resolved

CHP : Severe traffic alert and Traffic Collision on I-280 Southbound north of Washington St (Daly City). Right lanes blocked. Expect delays.

A high-severity accident was reported on I-280 S near San Mateo on September 24, 2026 at 2:50 AM.

Road

I-280 S

Area

San Mateo

Address

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Started

Sep 23, 7:50 PM

Last Updated

1 month ago

Sep 23, 9:00 PM

Resolved

Sep 24, 3:00 AM

Coordinates

37.6931, -122.4706

Update History

3 observations

CHP : Severe traffic alert and Traffic Collision on I-280 Southbound north of Washington St (Daly City). Right lanes blocked. Expect delays. Sep 23, 9:00 PM

CHP : Severe traffic alert and Traffic Collision on I-280 Southbound north of Washington St (Daly City). Right lanes blocked. Expect delays. Sep 23, 8:30 PM

CHP : Traffic Collision on I-280 Southbound north of Washington St (Daly City). Right and center lanes blocked. Expect delays. Sep 23, 8:15 PM

Source: 511_sfbay · ID 511.org/1553807 First seen Sep 23, 2026 8:15 PM

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