Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound east of Port Chicago Hwy (Concord). Lane affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on June 27, 2026 at 5:28 PM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Jun 27, 10:28 AM

Last Updated

4 months ago

Jun 27, 10:45 AM

Resolved

Jun 27, 4:45 PM

Coordinates

38.0107, -122.0175

Update History

2 observations

CHP : Traffic Hazard on CA-4 Westbound east of Port Chicago Hwy (Concord). Lane affected. Expect delays. Jun 27, 10:45 AM

CHP : Disabled vehicle on CA-4 Westbound east of Port Chicago Hwy (Concord). Lane affected. Expect delays. Jun 27, 10:30 AM

Source: 511_sfbay · ID 511.org/1514024 First seen Jun 27, 2026 10:30 AM