Construction Resolved

Caltrans : Roadwork on CA-4 Eastbound between Marsh Creek Rd (Brentwood) and Byron Hwy (Brentwood). Right lane and shoulder closed until 8 AM. From 8:00 PM Wednesday, September 16, 2026 to 8:00 AM Thursday, September 17, 2026.

A construction was reported on CA-4 E near Contra Costa on September 17, 2026 at 3:01 AM.

Road

CA-4 E

Area

Contra Costa

Address

Loading…

Started

Sep 16, 8:01 PM

Last Updated

1 month, 1 week ago

Sep 16, 9:30 PM

Resolved

Sep 17, 3:30 AM

Coordinates

37.8957, -121.7128

Update History

2 observations

Caltrans : Roadwork on CA-4 Eastbound between Marsh Creek Rd (Brentwood) and Byron Hwy (Brentwood). Right lane and shoulder closed until 8 AM. From 8:00 PM Wednesday, September 16, 2026 to 8:00 AM Thursday, September 17, 2026. Sep 16, 9:30 PM

Caltrans : Roadwork on CA-4 Eastbound between Marsh Creek Rd (Brentwood) and Byron Hwy (Brentwood). Right lane and shoulder closed until 8 AM. From 8:00 PM Wednesday, September 16, 2026 to 8:00 AM Thursday, September 17, 2026. Sep 16, 9:15 PM

Source: 511_sfbay · ID 511.org/1550578 First seen Sep 16, 2026 9:15 PM