Accident
Moderate Severity
Resolved
CHP : Traffic Collision and Overturned vehicle on CA-4 Eastbound west of Arnold Industrial Pl (Concord). Right lane blocked. Expect delays.
A injury accident was reported on CA-4 E near Contra Costa on May 28, 2026 at 1:03 PM.
Last Updated
4 months, 4 weeks ago
May 28, 6:30 AM
Resolved
May 28, 12:45 PM
Coordinates
38.0023, -122.0472
Update History
2 observations
CHP : Traffic Collision and Overturned vehicle on CA-4 Eastbound west of Arnold Industrial Pl (Concord). Right lane blocked. Expect delays.
May 28, 6:15 AM
CHP : Traffic Collision on CA-4 Eastbound west of Arnold Industrial Pl (Concord). Lane blocked. Expect delays.
May 28, 6:00 AM
Source: 511_sfbay · ID 511.org/1500384
First seen May 28, 2026 6:00 AM