Construction Resolved

Caltrans : Roadwork on I-680 Southbound exiting at Alcosta Blvd (San Ramon). Off Ramp closed until 5 AM. From 9:00 PM Wednesday, September 30, 2026 to 5:00 AM Thursday, October 01, 2026.

A construction was reported on I-680 S near Contra Costa on October 1, 2026 at 4:01 AM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Sep 30, 9:01 PM

Last Updated

3 weeks, 5 days ago

Oct 1, 12:15 AM

Resolved

Oct 1, 6:15 AM

Coordinates

37.7281, -121.9441

Update History

1 observations

Caltrans : Roadwork on I-680 Southbound exiting at Alcosta Blvd (San Ramon). Off Ramp closed until 5 AM. From 9:00 PM Wednesday, September 30, 2026 to 5:00 AM Thursday, October 01, 2026. Oct 1, 12:15 AM

Source: 511_sfbay · ID 511.org/1557328 First seen Oct 1, 2026 12:15 AM

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