Caltrans : Roadwork on CA-4 Eastbound and Westbound between San Joaquin County Line (Byron) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 10:00 PM Friday, July 17, 2026 to 5:00 AM Monday, July 20, 2026.
A construction was reported on CA-4 W near Contra Costa on July 18, 2026 at 5:00 AM.
Caltrans : Roadwork on CA-4 Eastbound and Westbound between San Joaquin County Line (Byron) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 10:00 PM Friday, July 17, 2026 to 5:00 AM Monday, July 20, 2026.
Jul 19, 5:30 PM
Caltrans : Roadwork on CA-4 Eastbound and Westbound between San Joaquin County Line (Byron) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 10:00 PM Friday, July 17, 2026 to 5:00 AM Monday, July 20, 2026.
Jul 19, 8:00 AM
Caltrans : Roadwork on CA-4 Eastbound and Westbound between San Joaquin County Line (Byron) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 10:00 PM Friday, July 17, 2026 to 5:00 AM Monday, July 20, 2026.
Jul 18, 12:45 PM
Caltrans : Roadwork on CA-4 Eastbound and Westbound between San Joaquin County Line (Byron) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 10:00 PM Friday, July 17, 2026 to 5:00 AM Monday, July 20, 2026.
Jul 18, 7:00 AM
Caltrans : Roadwork on CA-4 Eastbound and Westbound between San Joaquin County Line (Byron) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 10:00 PM Friday, July 17, 2026 to 5:00 AM Monday, July 20, 2026.
Jul 17, 10:00 PM
Source: 511_sfbay · ID 511.org/1522557
First seen Jul 17, 2026 10:00 PM