Construction Active

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Balfour Rd (Brentwood) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 7:00 PM Monday, October 26, 2026 to 5:00 AM Tuesday, October 27, 2026.

A construction was reported on CA-4 E near Contra Costa on October 27, 2026 at 2:00 AM.

Road

CA-4 E

Area

Contra Costa

Address

Loading…

Started

Oct 26, 7:00 PM

Last Updated

10 minutes ago

Oct 27, 3:45 AM

Coordinates

37.9253, -121.7332

Update History

1 observations

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Balfour Rd (Brentwood) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 7:00 PM Monday, October 26, 2026 to 5:00 AM Tuesday, October 27, 2026. Oct 26, 7:00 PM

Source: 511_sfbay · ID 511.org/1568821 First seen Oct 26, 2026 7:00 PM

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