Construction Resolved

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Marsh Creek Rd (Brentwood) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 7:00 PM Wednesday, October 07, 2026 to 8:00 AM Thursday, October 08, 2026.

A construction was reported on CA-4 E near Contra Costa on October 8, 2026 at 2:00 AM.

Road

CA-4 E

Area

Contra Costa

Address

Loading…

Started

Oct 7, 7:00 PM

Last Updated

2 weeks, 5 days ago

Oct 8, 6:00 AM

Resolved

Oct 8, 12:00 PM

Coordinates

37.8958, -121.7127

Update History

2 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 7:00 PM Wednesday, October 07, 2026 to 8:00 AM Thursday, October 08, 2026. Oct 8, 5:30 AM

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Marsh Creek Rd (Brentwood) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 7:00 PM Wednesday, October 07, 2026 to 8:00 AM Thursday, October 08, 2026. Oct 7, 7:00 PM

Source: 511_sfbay · ID 511.org/1560356 First seen Oct 7, 2026 7:00 PM