Accident High Severity Stale

CHP : Traffic Collision on I-680 Southbound entering at Arthur Rd (Martinez). On Ramp closed. Expect delays.

A high-severity accident was reported on I-680 S near Contra Costa on August 7, 2026 at 12:12 AM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Aug 6, 5:12 PM

Last Updated

51 minutes ago

Aug 6, 6:15 PM

Coordinates

38.0067, -122.0841

Update History

3 observations

CHP : Traffic Collision on I-680 Southbound entering at Arthur Rd (Martinez). On Ramp closed. Expect delays. Aug 6, 6:15 PM

CHP : Traffic Collision on I-680 Southbound entering at Arthur Rd (Martinez). On Ramp closed. Expect delays. Aug 6, 6:00 PM

CHP : Traffic Collision on I-680 Southbound entering at Arthur Rd (Martinez). Lane affected. Expect delays. Aug 6, 5:30 PM

Source: 511_sfbay · ID 511.org/1532007 First seen Aug 6, 2026 5:30 PM