Accident Moderate Severity Stale

CHP : Traffic Collision on CA-4 Eastbound east of I-680 N (Martinez). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on June 3, 2026 at 12:40 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jun 2, 5:40 PM

Last Updated

18 minutes ago

Jun 2, 6:00 PM

Coordinates

38.0023, -122.0473

Update History

2 observations

CHP : Traffic Collision on CA-4 Eastbound east of I-680 N (Martinez). Lane affected. Expect delays. Jun 2, 6:00 PM

CHP : Traffic Collision on CA-4 Eastbound east of I-680 N (Martinez). Right shoulder affected. Expect delays. Jun 2, 5:45 PM

Source: 511_sfbay · ID 511.org/1502842 First seen Jun 2, 2026 5:45 PM