Crash on I-405 Southbound at Harbor Boulevard, Costa Mesa, California

Saturday, August 15, 2026 at 7:40 PM

Injury crash1 vehicle

Reporting agency: CHP Santa Ana Area
Report number: 9675-2026-03940

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

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CHP Santa Ana Area: phone (714) 338-5500; address 2031 E. Santa Clara Ave., Santa Ana, CA 92705; fee $10 per 25 pages; its request page is linked below.

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Where and when

Location: I-405 Southbound at Harbor Boulevard
City, county: Costa Mesa, Orange County
Collision type: Hit Object
Motor vehicle involved with: Fixed Object
Posted speed limit: 65 mph
Primary collision factor cited: No
Weather: Clear
Light: Dusk-Dawn
Road surface: No Unusual Conditions
Hit and run: No
People involved: 2
Injured: 2
Killed: 0

Vehicles and people

Damage area not recorded

Unit 1: 1998 Mercedes-Benz Slk230

Black Passenger Car Station Wagon Jeep

Damage recorded: Vehicle towed
Direction of travel: South
Maneuver: Proceeding Straight

Driver, female, 18Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Deployed
Possible injury
Passenger, male, 19Restraint: Occupant Lap Shoulder Harness Not Used. Airbag: Air Bag Deployed
Minor injury

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

70 crashes recorded on I-405 Southbound in Costa Mesa in the last 12 months, 26 with injuries.

Sep 14, 2026, Baker St at Royal Palm Dr2 vehicles, 2 injuredInjury crash
Sep 13, 2026, Harbor BL at Baker St1 vehicleProperty damage only
Sep 12, 2026, I-405 Southbound at Santa Ana River2 vehiclesProperty damage only
Sep 11, 2026, Garry Avenue at Harbor Boulevard2 vehiclesProperty damage only
Sep 11, 2026, Harbor BL at Coast Dr2 vehiclesProperty damage only

All Costa Mesa crashes, August 2026

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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