Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 E near Contra Costa on April 18, 2026 at 10:13 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Apr 18, 3:13 PM

Last Updated

6 months, 1 week ago

Apr 18, 3:30 PM

Resolved

Apr 18, 9:45 PM

Coordinates

37.9956, -122.0666

Update History

1 observations

CHP : Traffic Collision on CA-4 Eastbound west of I-680 N (Martinez). Right shoulder affected. Expect delays. Apr 18, 3:30 PM

Source: 511_sfbay · ID 511.org/1483147 First seen Apr 18, 2026 3:30 PM