Construction Stale

Caltrans : Roadwork on CA-4 Westbound at Walnut Blvd (Brentwood). All lanes closed until 5 AM. From 6:00 PM Tuesday, August 18, 2026 to 5:00 AM Wednesday, August 19, 2026.

A construction was reported on CA-4 W near Contra Costa on August 19, 2026 at 1:01 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Aug 18, 6:01 PM

Last Updated

2 hours ago

Aug 19, 2:30 AM

Coordinates

37.9197, -121.7321

Update History

1 observations

Caltrans : Roadwork on CA-4 Westbound at Walnut Blvd (Brentwood). All lanes closed until 5 AM. From 6:00 PM Tuesday, August 18, 2026 to 5:00 AM Wednesday, August 19, 2026. Aug 19, 2:30 AM

Source: 511_sfbay · ID 511.org/1537554 First seen Aug 19, 2026 2:30 AM

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