Construction Active

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Various lanes closed until 5 AM. From 7:00 PM Tuesday, August 18, 2026 to 5:00 AM Wednesday, August 19, 2026.

A construction was reported on CA-4 W near Contra Costa on August 19, 2026 at 2:01 AM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Aug 18, 7:01 PM

Last Updated

11 minutes ago

Aug 18, 8:30 PM

Coordinates

37.9434, -121.7413

Update History

4 observations

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Various lanes closed until 5 AM. From 7:00 PM Tuesday, August 18, 2026 to 5:00 AM Wednesday, August 19, 2026. Aug 18, 8:30 PM

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Various lanes closed until 5 AM. From 7:00 PM Tuesday, August 18, 2026 to 5:00 AM Wednesday, August 19, 2026. Aug 18, 8:15 PM

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Various lanes closed until 5 AM. From 7:00 PM Tuesday, August 18, 2026 to 5:00 AM Wednesday, August 19, 2026. Aug 18, 8:00 PM

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Various lanes closed until 5 AM. From 7:00 PM Tuesday, August 18, 2026 to 5:00 AM Wednesday, August 19, 2026. Aug 18, 7:45 PM

Source: 511_sfbay · ID 511.org/1537511 First seen Aug 18, 2026 7:45 PM