Accident Moderate Severity Stale

CHP : Traffic Collision on US-101 Southbound south of Lagoon Way (South San Francisco). Left lane blocked. Expect delays.

A injury accident was reported on US-101 S near San Mateo on November 5, 2026 at 1:52 AM.

Road

US-101 S

Area

San Mateo

Address

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Started

Nov 4, 5:52 PM

Last Updated

1 hour, 9 minutes ago

Nov 4, 6:15 PM

Coordinates

37.6807, -122.3889

Update History

2 observations

CHP : Traffic Collision on US-101 Southbound south of Lagoon Way (South San Francisco). Left lane blocked. Expect delays. Nov 4, 6:15 PM

CHP : Traffic Collision on US-101 Southbound south of Lagoon Way (South San Francisco). Left lane blocked. Expect delays. Nov 4, 6:00 PM

Source: 511_sfbay · ID 511.org/1573051 First seen Nov 4, 2026 6:00 PM