Accident Moderate Severity Resolved

CHP : Traffic Collision 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 3, 2026 at 3:13 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 2, 8:13 PM

Last Updated

2 months, 3 weeks ago

Aug 2, 8:15 PM

Resolved

Aug 3, 2:30 AM

Coordinates

37.9943, -122.0702

Update History

1 observations

CHP : Traffic Collision on CA-4 Eastbound at I-680 S (Martinez). Lane affected. Expect delays. Aug 2, 8:15 PM

Source: 511_sfbay · ID 511.org/1530029 First seen Aug 2, 2026 8:15 PM