Accident High Severity Resolved

CHP : Disabled vehicle on I-280 Southbound exiting at Sand Hill Rd (Menlo Park). Off Ramp blocked. Expect delays.

A high-severity accident was reported on I-280 S near San Mateo on August 12, 2026 at 12:49 AM.

Road

I-280 S

Area

San Mateo

Address

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Started

Aug 11, 5:49 PM

Last Updated

15 hours, 35 minutes ago

Aug 11, 7:45 PM

Resolved

Aug 12, 2:00 AM

Coordinates

37.4224, -122.2263

Update History

4 observations

CHP : Disabled vehicle on I-280 Southbound exiting at Sand Hill Rd (Menlo Park). Off Ramp blocked. Expect delays. Aug 11, 7:45 PM

CHP : Disabled vehicle on I-280 Southbound exiting at Sand Hill Rd (Menlo Park). Off Ramp blocked. Expect delays. Aug 11, 7:15 PM

CHP : Disabled vehicle on I-280 Southbound exiting at Sand Hill Rd (Menlo Park). Off Ramp blocked. Expect delays. Aug 11, 6:30 PM

CHP : Disabled vehicle on I-280 Southbound exiting at Sand Hill Rd (Menlo Park). Off Ramp blocked. Expect delays. Aug 11, 6:00 PM

Source: 511_sfbay · ID 511.org/1534170 First seen Aug 11, 2026 6:00 PM