Accident Moderate Severity Active

CHP : Disabled tractor trailer on CA-4 Eastbound west of Port Chicago Hwy (Concord). Lane blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 5, 2026 at 8:22 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 5, 1:22 AM

Last Updated

12 minutes ago

Aug 5, 3:00 AM

Coordinates

38.0126, -122.0023

Update History

2 observations

CHP : Disabled tractor trailer on CA-4 Eastbound west of Port Chicago Hwy (Concord). Lane blocked. Expect delays. Aug 5, 1:30 AM

CHP : Disabled tractor trailer on CA-4 Eastbound west of Port Chicago Hwy (Concord). Lane blocked. Expect delays. Aug 5, 1:15 AM

Source: 511_sfbay · ID 511.org/1531157 First seen Aug 5, 2026 1:15 AM