Accident
High Severity
Resolved
CHP : Traffic Collision with Injuries on CA-121 Northbound at De Mattos Rd (Unincorporated). Right shoulder affected. Expect delays.
A high-severity accident was reported on CA-121 near Sonoma on September 25, 2026 at 7:31 AM.
Last Updated
1 month ago
Sep 25, 12:45 AM
Coordinates
38.1665, -122.4563
Update History
2 observations
CHP : Traffic Collision with Injuries on CA-121 Northbound at De Mattos Rd (Unincorporated). Right shoulder affected. Expect delays.
Sep 25, 12:45 AM
CHP : Traffic Collision with Injuries on CA-121 Northbound at De Mattos Rd (Unincorporated). Lane affected. Expect delays.
Sep 25, 12:15 AM
Source: 511_sfbay · ID 511.org/1554554
First seen Sep 25, 2026 12:15 AM