Crash on SR-4 EB at Disover Bay Blvd in Contra Costa County, California

Wednesday, March 18, 2026 at 1:50 PM

Injury crash6 vehicles

Reporting agency: CHP Contra Costa Area
Report number: 9320-2026-00887

From the CHP CCRS, record last updated October 25, 2026. No changes since first published.

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Who can ask: Parties of proper interest under Vehicle Code 20012: drivers, passengers, injured persons, vehicle and property owners, and their attorneys and insurers. There is no public copy.

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Where and when

Location: SR-4 EB at Disover Bay Blvd
City, county: Contra Costa County
Collision type: Rear End
Motor vehicle involved with: Other Motor Vehicle
Posted speed limit: 55 mph
Primary collision factor cited: No
Weather: Clear
Light: Daylight
Road surface: No Unusual Conditions
Hit and run: No
People involved: 9
Injured: 2
Killed: 0

Vehicles and people

Damage area not recorded

Unit 1: 2005 GMC Sierra

Blue Pickups and Panels

Direction of travel: East
Maneuver: Proceeding Straight

Driver, male, 49Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Deployed
Not injured

Damage area not recorded

Unit 2: 1997 Chevrolet Silverado

Blue Pickups and Panels

Direction of travel: East
Maneuver: Stopped

Driver, male, 49Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Deployed
Minor injury

Damage area not recorded

Unit 3: 2013 Chevrolet Malibu

Silver Passenger Car Station Wagon Jeep

Direction of travel: East
Maneuver: Stopped

Driver, male, 48Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Not Deployed
Not injured

Damage area not recorded

Unit 4: 2018 Kia Stinger

Black Passenger Car Station Wagon Jeep

Direction of travel: East
Maneuver: Stopped

Driver, female, 55Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Deployed
Minor injury

Damage area not recorded

Unit 5: 2014 Kia Sportage

Black Sport Utility Vehicle

Direction of travel: East
Maneuver: Stopped

Driver, female, 31Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Not Deployed
Not injured
Passenger, female, 30Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Not Deployed
Not injured

Damage area not recorded

Unit 6: 2007 Nissan Frontier

Silver Pickups and Panels

Direction of travel: East
Maneuver: Stopped

Driver, female, 62Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Not Deployed
Not injured
Passenger, maleRestraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Not Deployed
Not injured
Passenger, male, 47Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Not Deployed
Not injured

What the officer recorded

Violation cited: VC 22350 UNSAFE SPEED FOR PREVAILING CONDITIONSas recorded on the report

A contributing factor or charge recorded by an officer is not a finding of fault or a conviction. We show the record as the state released it.

Nearby and recent

Apr 15, 2026, SR-4 WB at Discovery Bay Blvd.3 vehiclesProperty damage only
Apr 7, 2026, E/B SR-4 at Old River Bridge1 vehicleProperty damage only
Mar 10, 2026, SR-4 EB at Discovery Bay Blvd2 vehicles, 1 injuredInjury crash
Mar 6, 2026, SR-4 at Old River Bridge3 vehiclesProperty damage only
Feb 28, 2026, SR-4 W/B at Old River Bridge4 vehicles, 1 injuredFatal crash

About this record

Source: CHP CCRS
Updates: Changes the state makes to this record are applied here when the source publishes them
First published here: October 25, 2026
Last updated: October 25, 2026, no changes recorded
What is left out: Names, addresses, plates, and license and insurance numbers are not in the public data and never appear here

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