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 Thursday, May 14, 2026 to 5:00 AM Friday, May 15, 2026.

A construction was reported on CA-4 W near Contra Costa on May 15, 2026 at 2:30 AM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

May 14, 7:30 PM

Last Updated

5 months, 1 week ago

May 15, 4:45 AM

Resolved

May 15, 11:00 AM

Coordinates

37.8965, -121.6433

Update History

4 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 Thursday, May 14, 2026 to 5:00 AM Friday, May 15, 2026. May 14, 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 Tuesday, May 12, 2026 to 5:00 AM Wednesday, May 13, 2026. May 12, 7:45 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 Tuesday, May 12, 2026 to 5:00 AM Wednesday, May 13, 2026. May 12, 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 10, 2026 to 5:00 AM Monday, May 11, 2026. May 10, 7:30 PM

Source: 511_sfbay · ID 511.org/1490520 First seen May 10, 2026 7:30 PM