Accident
Moderate Severity
Stale
CHP : Traffic Collision on US-101 Southbound north of Sister Cities Blvd (South San Francisco). Right shoulder affected. Expect delays.
A injury accident was reported on US-101 S near San Mateo on April 26, 2026 at 5:26 AM.
Last Updated
59 minutes ago
Apr 25, 10:30 PM
Coordinates
37.6696, -122.3931
Update History
2 observations
CHP : Traffic Collision on US-101 Southbound north of Sister Cities Blvd (South San Francisco). Right shoulder affected. Expect delays.
Apr 25, 10:30 PM
CHP : Traffic Collision on US-101 Southbound north of Sister Cities Blvd (South San Francisco). Left lane affected. Expect delays.
Apr 25, 10:15 PM
Source: 511_sfbay · ID 511.org/1486205
First seen Apr 25, 2026 10:15 PM