Construction Resolved

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Byron Hwy (Brentwood) and Marsh Creek Rd (Brentwood). All lanes closed. Avoid the area. From 7:00 PM Thursday, October 08, 2026 to 8:00 AM Friday, October 09, 2026.

A construction was reported on CA-4 W near Contra Costa on October 9, 2026 at 2:00 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Oct 8, 7:00 PM

Last Updated

2 weeks, 4 days ago

Oct 9, 5:15 AM

Resolved

Oct 9, 11:15 AM

Coordinates

37.8964, -121.6414

Update History

1 observations

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Byron Hwy (Brentwood) and Marsh Creek Rd (Brentwood). All lanes closed. Avoid the area. From 7:00 PM Thursday, October 08, 2026 to 8:00 AM Friday, October 09, 2026. Oct 8, 7:15 PM

Source: 511_sfbay · ID 511.org/1560971 First seen Oct 8, 2026 7:15 PM

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