Construction Active

Caltrans : Roadwork on CA-4 Westbound between Byron Hwy (Brentwood) and Balfour Rd (Antioch). All lanes closed. Avoid the area. From 6:45 PM Monday, August 24, 2026 to 5:00 AM Tuesday, August 25, 2026.

A construction was reported on CA-4 W near Contra Costa on August 25, 2026 at 1:51 AM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Aug 24, 6:51 PM

Last Updated

12 minutes ago

Aug 24, 7:30 PM

Coordinates

37.8964, -121.6414

Update History

1 observations

Caltrans : Roadwork on CA-4 Westbound between Byron Hwy (Brentwood) and Balfour Rd (Antioch). All lanes closed. Avoid the area. From 6:45 PM Monday, August 24, 2026 to 5:00 AM Tuesday, August 25, 2026. Aug 24, 7:00 PM

Source: 511_sfbay · ID 511.org/1540082 First seen Aug 24, 2026 7:00 PM

← All California Incidents More in Contra Costa More on CA-4 W