Accident Moderate Severity Active

CHP : Traffic Hazard on I-280 Southbound north of Alpine Rd (Menlo Park). Lane blocked. Expect delays.

A injury accident was reported on I-280 S near San Mateo on August 29, 2026 at 2:02 AM.

Road

I-280 S

Area

San Mateo

Address

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Started

Aug 28, 7:02 PM

Last Updated

11 minutes ago

Aug 28, 8:45 PM

Coordinates

37.4067, -122.1896

Update History

1 observations

CHP : Traffic Hazard on I-280 Southbound north of Alpine Rd (Menlo Park). Lane blocked. Expect delays. Aug 28, 7:15 PM

Source: 511_sfbay · ID 511.org/1542304 First seen Aug 28, 2026 7:15 PM