Crash on Brea Canyon Rd at Cold Spring Ln, Diamond Bar, California

Thursday, March 5, 2026 at 4:30 PM

Injury crashPedestrian involvedBicyclist involved1 vehicle

Reporting agency: Los Angeles County Sheriff's Office
Report number: 926-01618-2927-471

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.

Los Angeles County Sheriff's Office: phone (562) 345-4441; address Records and Identification Bureau, 12440 East Imperial Highway, Suite 120, Norwalk, CA 90650; its request page is linked below.

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Where and when

Location: Brea Canyon Rd at Cold Spring Ln
City, county: Diamond Bar, Los Angeles County
Collision type: Vehicle/Pedestrain
Motor vehicle involved with: Pedestrian
Pedestrian action: Not in Road
Primary collision factor cited: No
Weather: Clear
Light: Daylight
Road surface: No Unusual Conditions
Hit and run: No
People involved: 2
Injured: 1
Killed: 0

Vehicles and people

Bicycle

Unit 1: Bicycle

Bicycle

Direction of travel: South
Maneuver: Proceeding Straight

Bicyclist, male, under 18Restraint: Motor Bicycle Driver no Helmet
Not injured

Not in a vehicle

Pedestrian, male, under 18
Minor injury

What the officer recorded

Violation cited: 21952as 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

17 crashes recorded on Brea Canyon Rd in Diamond Bar in the last 12 months, 5 with injuries.

Apr 4, 2026, Pathfinder Rd at Diamond Bar Blvd3 vehiclesProperty damage only
Apr 4, 2026, SR-57 S/B (Orange Fwy) at Diamond Bar Blvd2 vehiclesProperty damage only
Apr 1, 2026, SR-57 N/B (Orange Fwy) at Pathfinder Rd2 vehiclesProperty damage only
Mar 31, 2026, Cold Spring Ln at Castle Rock Rd2 vehiclesProperty damage only
Mar 28, 2026, SR-57 N/B (Orange Fwy) at Diamond Bar Blvd2 vehicles, 1 injuredInjury crash

All Diamond Bar crashes, March 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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