Accident Moderate Severity Resolved

CHP : Traffic Collision on I-680 Southbound north of Alcosta Blvd (San Ramon). Left lane blocked. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on October 9, 2026 at 1:45 AM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Oct 8, 6:45 PM

Last Updated

2 weeks, 5 days ago

Oct 8, 7:00 PM

Resolved

Oct 9, 1:15 AM

Coordinates

37.7318, -121.9468

Update History

1 observations

CHP : Traffic Collision on I-680 Southbound north of Alcosta Blvd (San Ramon). Left lane blocked. Expect delays. Oct 8, 7:00 PM

Source: 511_sfbay · ID 511.org/1561166 First seen Oct 8, 2026 7:00 PM