Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Eastbound west of Hillcrest Ave (Antioch). Left lane blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on May 22, 2026 at 12:20 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

May 21, 5:20 PM

Last Updated

18 hours, 10 minutes ago

May 21, 5:30 PM

Resolved

May 21, 11:45 PM

Coordinates

37.9982, -121.7986

Update History

2 observations

CHP : Traffic Collision with Injuries on CA-4 Eastbound west of Hillcrest Ave (Antioch). Left lane blocked. Expect delays. May 21, 5:30 PM

CHP : Traffic Collision with Injuries on CA-4 Eastbound west of Hillcrest Ave (Antioch). Lane affected. Expect delays. May 21, 5:15 PM

Source: 511_sfbay · ID 511.org/1497917 First seen May 21, 2026 5:15 PM