Accident Moderate Severity Resolved

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

A injury accident was reported on I-680 S near Contra Costa on May 9, 2026 at 2:24 AM.

Road

I-680 S

Area

Contra Costa

Address

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Started

May 8, 7:24 PM

Last Updated

5 months, 2 weeks ago

May 8, 7:30 PM

Resolved

May 9, 1:45 AM

Coordinates

37.7286, -121.9443

Update History

1 observations

CHP : Traffic Collision on I-680 Southbound north of Alcosta Blvd (San Ramon). Lane affected. Expect delays. May 8, 7:30 PM

Source: 511_sfbay · ID 511.org/1492073 First seen May 8, 2026 7:30 PM