Construction Resolved

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Marsh Creek Rd (Brentwood) and Byron Hwy (Brentwood). Left lane blocked. Expect delays. From 5:30 AM Friday, May 15, 2026 to 6:00 AM Friday, May 15, 2026.

A construction was reported on CA-4 W near Contra Costa on May 15, 2026 at 12:25 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 15, 5:25 AM

Last Updated

5 months, 1 week ago

May 15, 5:45 AM

Resolved

May 15, 12:00 PM

Coordinates

37.8958, -121.7127

Update History

1 observations

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Marsh Creek Rd (Brentwood) and Byron Hwy (Brentwood). Left lane blocked. Expect delays. From 5:30 AM Friday, May 15, 2026 to 6:00 AM Friday, May 15, 2026. May 15, 5:45 AM

Source: 511_sfbay · ID 511.org/1494791 First seen May 15, 2026 5:45 AM

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