Accident High Severity Resolved

CHP : Disabled tractor trailer on CA-4 Eastbound entering at Port Chicago Hwy (Concord). On Ramp affected. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on July 28, 2026 at 1:08 PM.

Road

CA-4 E

Area

Contra Costa

Address

Loading…

Started

Jul 28, 6:08 AM

Last Updated

21 hours, 22 minutes ago

Jul 28, 8:15 AM

Resolved

Jul 28, 2:30 PM

Coordinates

38.0106, -122.0155

Update History

5 observations

CHP : Disabled tractor trailer on CA-4 Eastbound entering at Port Chicago Hwy (Concord). On Ramp affected. Expect delays. Jul 28, 8:00 AM

CHP : Disabled tractor trailer on CA-4 Eastbound entering at Port Chicago Hwy (Concord). On Ramp affected. Expect delays. Jul 28, 7:45 AM

CHP : Disabled tractor trailer on CA-4 Eastbound entering at Port Chicago Hwy (Concord). On Ramp affected. Expect delays. Jul 28, 7:15 AM

CHP : Disabled tractor trailer on CA-4 Eastbound entering at Port Chicago Hwy (Concord). On Ramp affected. Expect delays. Jul 28, 6:45 AM

CHP : Disabled tractor trailer on CA-4 Eastbound entering at Port Chicago Hwy (Concord). On Ramp affected. Expect delays. Jul 28, 6:15 AM

Source: 511_sfbay · ID 511.org/1527257 First seen Jul 28, 2026 6:15 AM