Construction Resolved

Caltrans : Roadwork on CA-4 Westbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Tuesday, September 08, 2026 to 5:00 AM Wednesday, September 09, 2026.

A construction was reported on CA-4 W near Contra Costa on September 9, 2026 at 4:01 AM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Sep 8, 9:01 PM

Last Updated

1 month, 2 weeks ago

Sep 9, 12:00 AM

Resolved

Sep 9, 6:00 AM

Coordinates

38.0162, -122.1906

Update History

4 observations

Caltrans : Roadwork on CA-4 Westbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Tuesday, September 08, 2026 to 5:00 AM Wednesday, September 09, 2026. Sep 9, 12:00 AM

Caltrans : Roadwork on CA-4 Westbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Tuesday, September 08, 2026 to 5:00 AM Wednesday, September 09, 2026. Sep 8, 11:30 PM

Caltrans : Roadwork on CA-4 Westbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Tuesday, September 08, 2026 to 5:00 AM Wednesday, September 09, 2026. Sep 8, 11:15 PM

Caltrans : Roadwork on CA-4 Westbound entering at Cummings Skwy (Port Costa). On Ramp closed until 5 AM. From 9:00 PM Tuesday, September 08, 2026 to 5:00 AM Wednesday, September 09, 2026. Sep 8, 11:00 PM

Source: 511_sfbay · ID 511.org/1546641 First seen Sep 8, 2026 11:00 PM