Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Arnold Industrial Pl (Concord). Lane blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 26, 2026 at 8:37 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 26, 1:37 AM

Last Updated

2 months ago

Aug 26, 3:00 AM

Resolved

Aug 26, 9:15 AM

Coordinates

38.0006, -122.0541

Update History

3 observations

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Arnold Industrial Pl (Concord). Lane blocked. Expect delays. Aug 26, 2:30 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Arnold Industrial Pl (Concord). Lane blocked. Expect delays. Aug 26, 1:00 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Arnold Industrial Pl (Concord). Lane affected. Expect delays. Aug 26, 12:30 AM

Source: 511_sfbay · ID 511.org/1540883 First seen Aug 26, 2026 12:30 AM