Accident Moderate Severity Resolved

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

A injury accident was reported on I-680 S near Contra Costa on April 29, 2026 at 2:19 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Apr 29, 7:19 AM

Last Updated

5 months, 4 weeks ago

Apr 29, 7:30 AM

Resolved

Apr 29, 1:30 PM

Coordinates

37.7286, -121.9443

Update History

1 observations

CHP : Traffic Hazard on I-680 Southbound at Alcosta Blvd (San Ramon). Lane affected. Expect delays. Apr 29, 7:30 AM

Source: 511_sfbay · ID 511.org/1487596 First seen Apr 29, 2026 7:30 AM