Construction Resolved

Caltrans : Roadwork on I-680 Southbound between Sycamore Valley Rd (Danville) and Bollinger Canyon Rd (San Ramon). Various lanes closed until 5 AM. From 8:00 PM Tuesday, October 20, 2026 to 5:00 AM Wednesday, October 21, 2026.

A construction was reported on I-680 S near Contra Costa on October 21, 2026 at 3:01 AM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Oct 20, 8:01 PM

Last Updated

6 days, 1 hour ago

Oct 21, 5:00 AM

Resolved

Oct 21, 11:00 AM

Coordinates

37.8116, -121.9931

Update History

3 observations

Caltrans : Roadwork on I-680 Southbound between Sycamore Valley Rd (Danville) and Bollinger Canyon Rd (San Ramon). Various lanes closed until 5 AM. From 8:00 PM Tuesday, October 20, 2026 to 5:00 AM Wednesday, October 21, 2026. Oct 21, 5:00 AM

Caltrans : Roadwork on I-680 Southbound between Sycamore Valley Rd (Danville) and Bollinger Canyon Rd (San Ramon). Various lanes closed until 5 AM. From 8:00 PM Tuesday, October 20, 2026 to 5:00 AM Wednesday, October 21, 2026. Oct 21, 4:45 AM

Caltrans : Roadwork on I-680 Southbound between Sycamore Valley Rd (Danville) and Bollinger Canyon Rd (San Ramon). Various lanes closed until 5 AM. From 8:00 PM Tuesday, October 20, 2026 to 5:00 AM Wednesday, October 21, 2026. Oct 20, 11:30 PM

Source: 511_sfbay · ID 511.org/1566489 First seen Oct 20, 2026 11:30 PM