Accident High Severity Resolved

CHP : Traffic Collision on I-280 Southbound entering at CA-1 S (Daly City). On Ramp blocked. Expect delays.

A high-severity accident was reported on I-280 S near San Mateo on April 29, 2026 at 12:00 AM.

Road

I-280 S

Area

San Mateo

Address

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Started

Apr 28, 5:00 PM

Last Updated

1 month, 1 week ago

Apr 28, 5:30 PM

Resolved

Apr 28, 11:30 PM

Coordinates

37.6764, -122.4707

Update History

2 observations

CHP : Traffic Collision on I-280 Southbound entering at CA-1 S (Daly City). On Ramp blocked. Expect delays. Apr 28, 5:15 PM

CHP : Traffic Collision on I-280 Southbound at CA-1 S (Daly City). On Ramp blocked. Expect delays. Apr 28, 5:00 PM

Source: 511_sfbay · ID 511.org/1487331 First seen Apr 28, 2026 5:00 PM