Accident Moderate Severity Resolved

CHP : Water main break on CA-4 Westbound east of G St (Antioch). Lanes affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on July 21, 2026 at 4:40 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jul 21, 9:40 AM

Last Updated

1 week, 1 day ago

Jul 21, 9:45 AM

Resolved

Jul 21, 3:45 PM

Coordinates

37.9987, -121.8180

Update History

1 observations

CHP : Water main break on CA-4 Westbound east of G St (Antioch). Lanes affected. Expect delays. Jul 21, 9:45 AM

Source: 511_sfbay · ID 511.org/1524048 First seen Jul 21, 2026 9:45 AM