Construction Resolved

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Right lane and shoulder closed until 5 AM. From 7:00 PM Friday, September 18, 2026 to 5:00 AM Saturday, September 19, 2026.

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

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Sep 18, 7:01 PM

Last Updated

1 month, 1 week ago

Sep 19, 5:00 AM

Resolved

Sep 19, 11:15 AM

Coordinates

37.9434, -121.7413

Update History

2 observations

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Right lane and shoulder closed until 5 AM. From 7:00 PM Friday, September 18, 2026 to 5:00 AM Saturday, September 19, 2026. Sep 19, 5:00 AM

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Right lane and shoulder closed until 5 AM. From 7:00 PM Friday, September 18, 2026 to 5:00 AM Saturday, September 19, 2026. Sep 18, 8:45 PM

Source: 511_sfbay · ID 511.org/1551607 First seen Sep 18, 2026 8:45 PM