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 June 27, 2026 at 9:34 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jun 27, 2:34 PM

Last Updated

3 months, 4 weeks ago

Jun 27, 3:00 PM

Resolved

Jun 27, 9:00 PM

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. Jun 27, 2:45 PM

Source: 511_sfbay · ID 511.org/1514112 First seen Jun 27, 2026 2:45 PM