Construction Resolved

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Left lane and shoulder closed until 8 AM. From 7:00 PM Friday, September 11, 2026 to 8:00 AM Saturday, September 12, 2026.

A construction was reported on CA-4 W near Contra Costa on September 12, 2026 at 2:01 AM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Sep 11, 7:01 PM

Last Updated

1 month, 2 weeks ago

Sep 11, 11:00 PM

Resolved

Sep 12, 5:00 AM

Coordinates

37.9434, -121.7413

Update History

5 observations

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Left lane and shoulder closed until 8 AM. From 7:00 PM Friday, September 11, 2026 to 8:00 AM Saturday, September 12, 2026. Sep 11, 11:00 PM

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Left lane and shoulder closed until 8 AM. From 7:00 PM Friday, September 11, 2026 to 8:00 AM Saturday, September 12, 2026. Sep 11, 10:45 PM

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Left lane and shoulder closed until 8 AM. From 7:00 PM Friday, September 11, 2026 to 8:00 AM Saturday, September 12, 2026. Sep 11, 9:30 PM

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Left lane and shoulder closed until 8 AM. From 7:00 PM Friday, September 11, 2026 to 8:00 AM Saturday, September 12, 2026. Sep 11, 9:00 PM

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Left lane and shoulder closed until 8 AM. From 7:00 PM Friday, September 11, 2026 to 8:00 AM Saturday, September 12, 2026. Sep 11, 8:45 PM

Source: 511_sfbay · ID 511.org/1548248 First seen Sep 11, 2026 8:45 PM