Accident High Severity Resolved

CHP : Traffic Hazard on I-280 Southbound ramp to CA-92 W (San Mateo). Connector ramp affected. Expect delays.

A high-severity accident was reported on I-280 S near San Mateo on July 21, 2026 at 9:07 PM.

Road

I-280 S

Area

San Mateo

Address

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Started

Jul 21, 2:07 PM

Last Updated

6 days, 2 hours ago

Jul 21, 2:30 PM

Resolved

Jul 21, 8:30 PM

Coordinates

37.5093, -122.3429

Update History

1 observations

CHP : Traffic Hazard on I-280 Southbound ramp to CA-92 W (San Mateo). Connector ramp affected. Expect delays. Jul 21, 2:15 PM

Source: 511_sfbay · ID 511.org/1524157 First seen Jul 21, 2026 2:15 PM