Accident High Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound at Willow Pass Rd (Pittsburg). Off Ramp affected. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on April 19, 2026 at 11:43 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Apr 19, 4:43 AM

Last Updated

1 month, 3 weeks ago

Apr 19, 5:00 AM

Resolved

Apr 19, 11:15 AM

Coordinates

38.0237, -121.9721

Update History

2 observations

CHP : Traffic Collision on CA-4 Eastbound at Willow Pass Rd (Pittsburg). Off Ramp affected. Expect delays. Apr 19, 4:45 AM

CHP : Traffic Collision on CA-4 Eastbound at Willow Pass Rd (Pittsburg). Lane affected. Expect delays. Apr 19, 4:30 AM

Source: 511_sfbay · ID 511.org/1483282 First seen Apr 19, 2026 4:30 AM