Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Eastbound at I-680 S (Martinez). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 24, 2026 at 5:43 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 23, 10:43 PM

Last Updated

19 hours, 4 minutes ago

Aug 23, 11:30 PM

Resolved

Aug 24, 5:45 AM

Coordinates

37.9943, -122.0702

Update History

1 observations

CHP : Traffic Collision with Injuries on CA-4 Eastbound at I-680 S (Martinez). Lane affected. Expect delays. Aug 23, 11:00 PM

Source: 511_sfbay · ID 511.org/1539843 First seen Aug 23, 2026 11:00 PM