Construction Resolved

Caltrans : Roadwork on CA-4 Westbound between Byron Hwy (Brentwood) and Marsh Creek Rd (Brentwood). All lanes closed. Avoid the area. From 7:30 PM Tuesday, May 19, 2026 to 5:00 AM Wednesday, May 20, 2026.

A construction was reported on CA-4 W near Contra Costa on May 20, 2026 at 2:30 AM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

May 19, 7:30 PM

Last Updated

5 months, 1 week ago

May 20, 4:45 AM

Resolved

May 20, 11:00 AM

Coordinates

37.8965, -121.6432

Update History

3 observations

Caltrans : Roadwork on CA-4 Westbound between Byron Hwy (Brentwood) and Marsh Creek Rd (Brentwood). All lanes closed. Avoid the area. From 7:30 PM Tuesday, May 19, 2026 to 5:00 AM Wednesday, May 20, 2026. May 19, 7:30 PM

Caltrans : Roadwork on CA-4 Westbound between Byron Hwy (Brentwood) and Marsh Creek Rd (Brentwood). All lanes closed. Avoid the area. From 7:30 PM Monday, May 18, 2026 to 5:00 AM Tuesday, May 19, 2026. May 18, 7:30 PM

Caltrans : Roadwork on CA-4 Westbound between Byron Hwy (Brentwood) and Marsh Creek Rd (Brentwood). All lanes closed. Avoid the area. From 7:30 PM Sunday, May 17, 2026 to 5:00 AM Monday, May 18, 2026. May 17, 7:30 PM

Source: 511_sfbay · ID 511.org/1494606 First seen May 17, 2026 7:30 PM