Construction Active

Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026.

A construction was reported on I-680 S near Contra Costa on May 30, 2026 at 3:01 AM.

Address
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Started
May 29, 8:01 PM
Last Updated
9 minutes ago
May 30, 12:00 AM
Coordinates
37.7371, -121.9507
14 observations
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 30, 12:00 AM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 11:45 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 11:30 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 11:15 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 11:00 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 10:45 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 10:30 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 10:15 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 10:00 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 9:45 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 9:30 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 9:15 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 9:00 PM
Caltrans : Roadwork on I-680 Southbound at Alcosta Blvd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, May 29, 2026 to 8:00 AM Saturday, May 30, 2026. May 29, 8:45 PM
Source: 511_sfbay · ID 511.org/1501232 First seen May 29, 2026 8:45 PM