Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound east of Port Chicago Hwy (Concord). 3rd lane from the left blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 19, 2026 at 10:28 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 19, 3:28 PM

Last Updated

2 months, 1 week ago

Aug 19, 4:15 PM

Resolved

Aug 19, 10:15 PM

Coordinates

38.0126, -122.0023

Update History

2 observations

CHP : Traffic Collision on CA-4 Eastbound east of Port Chicago Hwy (Concord). 3rd lane from the left blocked. Expect delays. Aug 19, 4:15 PM

CHP : Traffic Collision on CA-4 Eastbound east of Port Chicago Hwy (Concord). Left lane blocked. Expect delays. Aug 19, 3:45 PM

Source: 511_sfbay · ID 511.org/1537958 First seen Aug 19, 2026 3:45 PM