Accident Moderate Severity Resolved

CHP : Traffic Collision on I-280 Southbound north of Sand Hill Rd (Menlo Park). Left lanes blocked. Expect delays.

A injury accident was reported on I-280 S near San Mateo on July 30, 2026 at 3:49 PM.

Road

I-280 S

Area

San Mateo

Address

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Started

Jul 30, 8:49 AM

Last Updated

2 months, 4 weeks ago

Jul 30, 9:30 AM

Resolved

Jul 30, 3:30 PM

Coordinates

37.4314, -122.2386

Update History

2 observations

CHP : Traffic Collision on I-280 Southbound north of Sand Hill Rd (Menlo Park). Left lanes blocked. Expect delays. Jul 30, 9:15 AM

CHP : Traffic Collision on I-280 Southbound north of Sand Hill Rd (Menlo Park). Left lanes blocked. Expect delays. Jul 30, 9:00 AM

Source: 511_sfbay · ID 511.org/1528436 First seen Jul 30, 2026 9:00 AM