Accident
High Severity
Stale
CHP : Traffic Collision on I-580 Westbound exiting at Main St (San Quentin). Off Ramp affected. Expect delays.
A high-severity accident was reported on I-580 W near Marin on May 21, 2026 at 2:49 PM.
Last Updated
2 hours, 38 minutes ago
May 21, 8:30 AM
Coordinates
37.9426, -122.4777
Update History
3 observations
CHP : Traffic Collision on I-580 Westbound exiting at Main St (San Quentin). Off Ramp affected. Expect delays.
May 21, 8:30 AM
CHP : Traffic Collision on I-580 Westbound east of Main St (San Quentin). Off Ramp affected. Expect delays.
May 21, 8:00 AM
CHP : Traffic Collision on I-580 Westbound east of Main St (San Quentin). Right lane blocked. Expect delays.
May 21, 7:45 AM
Source: 511_sfbay · ID 511.org/1497658
First seen May 21, 2026 7:45 AM