Accident High Severity Resolved

CHP : Traffic Collision with Injuries on I-280 Northbound exiting at Sand Hill Rd (Menlo Park). Off Ramp closed. Expect delays.

A high-severity accident was reported on I-280 N near San Mateo on July 25, 2026 at 6:45 PM.

Road

I-280 N

Area

San Mateo

Address

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Started

Jul 25, 11:45 AM

Last Updated

2 days, 15 hours ago

Jul 25, 12:00 PM

Resolved

Jul 25, 6:15 PM

Coordinates

37.4167, -122.2115

Update History

2 observations

CHP : Traffic Collision with Injuries on I-280 Northbound exiting at Sand Hill Rd (Menlo Park). Off Ramp closed. Expect delays. Jul 25, 12:00 PM

CHP : Traffic Collision with Injuries on I-280 Northbound at Sand Hill Rd (Menlo Park). Left shoulder affected. Expect delays. Jul 25, 11:45 AM

Source: 511_sfbay · ID 511.org/1526181 First seen Jul 25, 2026 11:45 AM