Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound west of Alhambra Ave (Martinez). Lanes blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on September 27, 2026 at 4:59 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Sep 26, 9:59 PM

Last Updated

1 month ago

Sep 26, 10:15 PM

Resolved

Sep 27, 4:15 AM

Coordinates

37.9899, -122.1333

Update History

1 observations

CHP : Traffic Collision on CA-4 Eastbound west of Alhambra Ave (Martinez). Lanes blocked. Expect delays. Sep 26, 10:15 PM

Source: 511_sfbay · ID 511.org/1555398 First seen Sep 26, 2026 10:15 PM