Construction Active

Caltrans : Roadwork on CA-4 Eastbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Wednesday, August 26, 2026 to 5:00 AM Thursday, August 27, 2026.

A construction was reported on CA-4 E near Contra Costa on August 27, 2026 at 4:01 AM.

Road

CA-4 E

Area

Contra Costa

Address

Loading…

Started

Aug 26, 9:01 PM

Last Updated

1 minute ago

Aug 26, 10:30 PM

Coordinates

38.0143, -122.1909

Update History

5 observations

Caltrans : Roadwork on CA-4 Eastbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Wednesday, August 26, 2026 to 5:00 AM Thursday, August 27, 2026. Aug 26, 10:30 PM

Caltrans : Roadwork on CA-4 Eastbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Wednesday, August 26, 2026 to 5:00 AM Thursday, August 27, 2026. Aug 26, 10:15 PM

Caltrans : Roadwork on CA-4 Eastbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Wednesday, August 26, 2026 to 5:00 AM Thursday, August 27, 2026. Aug 26, 10:00 PM

Caltrans : Roadwork on CA-4 Eastbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Wednesday, August 26, 2026 to 5:00 AM Thursday, August 27, 2026. Aug 26, 9:45 PM

Caltrans : Roadwork on CA-4 Eastbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Wednesday, August 26, 2026 to 5:00 AM Thursday, August 27, 2026. Aug 26, 9:30 PM

Source: 511_sfbay · ID 511.org/1541331 First seen Aug 26, 2026 9:30 PM