Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound west of I-680 N (Martinez). Left lane blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on July 8, 2026 at 1:02 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jul 7, 6:02 PM

Last Updated

3 months, 2 weeks ago

Jul 7, 6:15 PM

Resolved

Jul 8, 12:30 AM

Coordinates

37.9956, -122.0666

Update History

2 observations

CHP : Traffic Collision on CA-4 Eastbound west of I-680 N (Martinez). Left lane blocked. Expect delays. Jul 7, 6:15 PM

CHP : Traffic Collision on CA-4 Eastbound west of I-680 N (Martinez). Left lane blocked. Expect delays. Jul 7, 6:00 PM

Source: 511_sfbay · ID 511.org/1517922 First seen Jul 7, 2026 6:00 PM