Accident
High Severity
Resolved
CHP : Traffic Collision with Injuries on CA-4 Eastbound at Cummings Skwy (Port Costa). Lanes affected. Expect delays.
A high-severity accident was reported on CA-4 E near Contra Costa on June 25, 2026 at 8:07 AM.
Last Updated
1 month, 1 week ago
Jun 25, 2:00 AM
Coordinates
38.0077, -122.2106
Update History
3 observations
CHP : Traffic Collision with Injuries on CA-4 Eastbound at Cummings Skwy (Port Costa). Lanes affected. Expect delays.
Jun 25, 1:15 AM
CHP : Traffic Collision with Injuries on CA-4 Eastbound at Cummings Skwy (Port Costa). Lanes affected. Expect delays.
Jun 25, 1:00 AM
CHP : Traffic Collision with Injuries on CA-4 Westbound west of Sycamore Ave (Hercules). Left lane affected. Expect delays.
Jun 25, 12:30 AM
Source: 511_sfbay · ID 511.org/1512879
First seen Jun 25, 2026 12:30 AM