Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Southbound entering at Alcosta Blvd (San Ramon). Left lanes affected. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on October 25, 2026 at 8:05 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Oct 25, 1:05 PM

Last Updated

1 day, 23 hours ago

Oct 25, 1:30 PM

Resolved

Oct 25, 7:45 PM

Coordinates

37.7216, -121.9389

Update History

2 observations

CHP : Traffic Hazard on I-680 Southbound entering at Alcosta Blvd (San Ramon). Left lanes affected. Expect delays. Oct 25, 1:30 PM

CHP : Traffic Hazard on I-680 Southbound at Alcosta Blvd (San Ramon). Left lanes affected. Expect delays. Oct 25, 1:15 PM

Source: 511_sfbay · ID 511.org/1568409 First seen Oct 25, 2026 1:15 PM