Accident Moderate Severity Resolved

CHP : Flooding on I-280 Southbound south of Westborough Blvd (South San Francisco). 2nd lane from the left blocked. Expect delays.

A injury accident was reported on I-280 S near San Mateo on April 12, 2026 at 12:11 AM.

Road

I-280 S

Area

San Mateo

Address

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Started

Apr 11, 5:11 PM

Last Updated

6 months, 2 weeks ago

Apr 11, 6:15 PM

Resolved

Apr 12, 12:15 AM

Coordinates

37.6498, -122.4524

Update History

2 observations

CHP : Flooding on I-280 Southbound south of Westborough Blvd (South San Francisco). 2nd lane from the left blocked. Expect delays. Apr 11, 6:15 PM

CHP : Flooding on I-280 Southbound south of Westborough Blvd (South San Francisco). 2nd lane from the left blocked. Expect delays. Apr 11, 6:00 PM

Source: 511_sfbay · ID 511.org/1479933 First seen Apr 11, 2026 6:00 PM