Accident
Resolved
CHP : Traffic Collision on CA-4 Westbound east of Sycamore Ave (Hercules). Lanes open. Expect delays.
A accident was reported on CA-4 W near Contra Costa on June 8, 2026 at 12:33 AM.
Last Updated
2 days, 8 hours ago
Jun 7, 6:00 PM
Coordinates
38.0092, -122.2239
Update History
3 observations
CHP : Traffic Collision on CA-4 Westbound east of Sycamore Ave (Hercules). Lanes open. Expect delays.
Jun 7, 5:45 PM
CHP : Traffic Collision on CA-4 Westbound east of Sycamore Ave (Hercules). Right shoulder affected. Expect delays.
Jun 7, 5:30 PM
CHP : Traffic Collision on CA-4 Westbound east of Sycamore Ave (Hercules). Right shoulder affected. Expect delays.
Jun 7, 5:15 PM
Source: 511_sfbay · ID 511.org/1505040
First seen Jun 7, 2026 5:15 PM