Accident Resolved

CHP : Residual delays on CA-4 Eastbound at Byron Hwy (Brentwood). All lanes open. Expect delays.

A accident was reported on CA-4 E near Contra Costa on April 19, 2026 at 3:08 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Apr 19, 8:08 AM

Last Updated

6 months, 1 week ago

Apr 19, 9:00 AM

Resolved

Apr 19, 3:15 PM

Coordinates

37.8965, -121.6413

Update History

11 observations

CHP : Residual delays on CA-4 Eastbound at Byron Hwy (Brentwood). All lanes open. Expect delays. Apr 19, 9:00 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Byron Hwy (Brentwood). Left lane open. Expect delays. Apr 19, 8:15 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Byron Hwy (Brentwood). Lanes blocked. Expect delays. Apr 19, 7:00 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Byron Hwy (Brentwood). Lanes blocked. Expect delays. Apr 19, 6:45 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Byron Hwy (Brentwood). Lanes blocked. Expect delays. Apr 19, 6:30 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Byron Hwy (Brentwood). Lane affected. Expect delays. Apr 19, 6:15 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Byron Hwy (Brentwood). Lane affected. Expect delays. Apr 19, 6:00 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Byron Hwy (Brentwood). Lane affected. Expect delays. Apr 19, 5:30 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Byron Hwy (Brentwood). Lane affected. Expect delays. Apr 19, 5:15 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Byron Hwy (Brentwood). Lane affected. Expect delays. Apr 19, 5:00 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Byron Hwy (Brentwood). Lane affected. Expect delays. Apr 19, 4:45 AM

Source: 511_sfbay · ID 511.org/1483283 First seen Apr 19, 2026 4:45 AM