Construction Resolved

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Balfour Rd (Brentwood) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 9:00 PM Monday, October 05, 2026 to 8:00 AM Tuesday, October 06, 2026.

A construction was reported on CA-4 E near Contra Costa on October 6, 2026 at 4:00 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Oct 5, 9:00 PM

Last Updated

3 weeks ago

Oct 6, 5:15 AM

Resolved

Oct 6, 11:30 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 9:00 PM Monday, October 05, 2026 to 8:00 AM Tuesday, October 06, 2026. Oct 5, 9:00 PM

Source: 511_sfbay · ID 511.org/1559369 First seen Oct 5, 2026 9:00 PM

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