Construction Resolved

Caltrans : Roadwork on I-680 Southbound between Bollinger Canyon Rd (San Ramon) and Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, July 31, 2026 to 8:00 AM Saturday, August 01, 2026.

A construction was reported on I-680 S near Contra Costa on August 1, 2026 at 3:01 AM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Jul 31, 8:01 PM

Last Updated

9 hours, 10 minutes ago

Jul 31, 9:00 PM

Resolved

Aug 1, 3:15 AM

Coordinates

37.7602, -121.9656

Update History

2 observations

Caltrans : Roadwork on I-680 Southbound between Bollinger Canyon Rd (San Ramon) and Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, July 31, 2026 to 8:00 AM Saturday, August 01, 2026. Jul 31, 9:00 PM

Caltrans : Roadwork on I-680 Southbound between Bollinger Canyon Rd (San Ramon) and Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, July 31, 2026 to 8:00 AM Saturday, August 01, 2026. Jul 31, 8:45 PM

Source: 511_sfbay · ID 511.org/1529341 First seen Jul 31, 2026 8:45 PM