Construction Active

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Marsh Creek Rd (Brentwood) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 7:30 PM Wednesday, August 05, 2026 to 5:00 AM Thursday, August 06, 2026.

A construction was reported on CA-4 E near Contra Costa on August 6, 2026 at 2:25 AM.

Road

CA-4 E

Area

Contra Costa

Address

Loading…

Started

Aug 5, 7:25 PM

Last Updated

1 minute ago

Aug 5, 8:45 PM

Coordinates

37.8958, -121.7127

Update History

1 observations

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Marsh Creek Rd (Brentwood) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 7:30 PM Wednesday, August 05, 2026 to 5:00 AM Thursday, August 06, 2026. Aug 5, 7:30 PM

Source: 511_sfbay · ID 511.org/1531510 First seen Aug 5, 2026 7:30 PM

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