Accident High Severity Resolved

CHP : Traffic Hazard on US-101 Southbound at I-380 W (South San Francisco). Off Ramp affected. Expect delays.

A high-severity accident was reported on US-101 S near San Mateo on June 28, 2026 at 2:44 AM.

Road

US-101 S

Area

San Mateo

Address

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Started

Jun 27, 7:44 PM

Last Updated

1 month ago

Jun 27, 8:15 PM

Resolved

Jun 28, 2:15 AM

Coordinates

37.6381, -122.4049

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound at I-380 W (South San Francisco). Off Ramp affected. Expect delays. Jun 27, 7:45 PM

Source: 511_sfbay · ID 511.org/1514211 First seen Jun 27, 2026 7:45 PM