Accident
High Severity
Stale
CHP : Traffic Collision on US-101 Northbound south of Mariposa St (San Francisco). Off Ramp affected. Expect delays.
A high-severity accident was reported on US-101 N near San Francisco on August 14, 2026 at 6:45 AM.
Last Updated
57 minutes ago
Aug 14, 1:15 AM
Coordinates
37.7618, -122.4058
Update History
4 observations
CHP : Traffic Collision on US-101 Northbound south of Mariposa St (San Francisco). Off Ramp affected. Expect delays.
Aug 14, 1:00 AM
CHP : Traffic Collision on US-101 Northbound south of Mariposa St (San Francisco). Off Ramp affected. Expect delays.
Aug 13, 11:45 PM
CHP : Traffic Collision on US-101 Northbound south of Mariposa St (San Francisco). Off Ramp affected. Expect delays.
Aug 13, 11:15 PM
CHP : Traffic Collision on US-101 Northbound south of Mariposa St (San Francisco). Right shoulder affected. Expect delays.
Aug 13, 10:00 PM
Source: 511_sfbay · ID 511.org/1535401
First seen Aug 13, 2026 10:00 PM