Construction Resolved

Caltrans : Roadwork on I-680 Southbound between Sycamore Valley Rd (Danville) and Bollinger Canyon Rd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, September 18, 2026 to 8:00 AM Saturday, September 19, 2026.

A construction was reported on I-680 S near Contra Costa on September 19, 2026 at 3:01 AM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Sep 18, 8:01 PM

Last Updated

1 month, 1 week ago

Sep 19, 5:15 AM

Resolved

Sep 19, 11:15 AM

Coordinates

37.8116, -121.9931

Update History

1 observations

Caltrans : Roadwork on I-680 Southbound between Sycamore Valley Rd (Danville) and Bollinger Canyon Rd (San Ramon). Various lanes closed until 8 AM. From 8:00 PM Friday, September 18, 2026 to 8:00 AM Saturday, September 19, 2026. Sep 19, 5:15 AM

Source: 511_sfbay · ID 511.org/1551617 First seen Sep 19, 2026 5:15 AM

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