Accident Moderate Severity Resolved

CHP : Traffic Collision on I-280 Southbound north of Sand Hill Rd (Menlo Park). 2nd lane from the left affected. Expect delays.

A injury accident was reported on I-280 S near San Mateo on August 19, 2026 at 1:15 PM.

Road

I-280 S

Area

San Mateo

Address

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Started

Aug 19, 6:15 AM

Last Updated

9 hours, 11 minutes ago

Aug 19, 6:30 AM

Resolved

Aug 19, 12:45 PM

Coordinates

37.4224, -122.2263

Update History

2 observations

CHP : Traffic Collision on I-280 Southbound north of Sand Hill Rd (Menlo Park). 2nd lane from the left affected. Expect delays. Aug 19, 6:30 AM

CHP : Traffic Collision on I-280 Southbound north of Sand Hill Rd (Menlo Park). Lane affected. Expect delays. Aug 19, 6:15 AM

Source: 511_sfbay · ID 511.org/1537690 First seen Aug 19, 2026 6:15 AM