Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound east of I-680 N (Martinez). Lanes affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on April 14, 2026 at 1:03 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Apr 13, 6:03 PM

Last Updated

6 months, 1 week ago

Apr 13, 6:15 PM

Resolved

Apr 14, 12:30 AM

Coordinates

37.9959, -122.0665

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of I-680 N (Martinez). Lanes affected. Expect delays. Apr 13, 6:15 PM

Source: 511_sfbay · ID 511.org/1480948 First seen Apr 13, 2026 6:15 PM