Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-280 Northbound north of Sand Hill Rd (Menlo Park). Left lane affected. Expect delays.

A injury accident was reported on I-280 N near San Mateo on May 20, 2026 at 3:22 PM.

Road

I-280 N

Area

San Mateo

Address

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Started

May 20, 8:22 AM

Last Updated

1 day, 1 hour ago

May 20, 9:45 AM

Resolved

May 20, 3:45 PM

Coordinates

37.4214, -122.2244

Update History

3 observations

CHP : Traffic Hazard on I-280 Northbound north of Sand Hill Rd (Menlo Park). Left lane affected. Expect delays. May 20, 9:30 AM

CHP : Traffic Hazard on I-280 Northbound north of Sand Hill Rd (Menlo Park). Right lane affected. Expect delays. May 20, 9:00 AM

CHP : Traffic Hazard on I-280 Northbound north of Sand Hill Rd (Menlo Park). Right lane affected. Expect delays. May 20, 8:30 AM

Source: 511_sfbay · ID 511.org/1497120 First seen May 20, 2026 8:30 AM