Accident High Severity Resolved

Injury crash — 4 injured, head-on on DIAMOND BAR BOULEVARD

A high-severity accident was reported on DIAMOND BAR BOULEVARD near Diamond Bar on April 7, 2026 at 12:20 PM. 2 parties involved, 4 injuries.

4 injured. Primary factor: 21804(a). Near HIGHLAND VALLEY ROAD.

Road

DIAMOND BAR BOULEVARD

Area

Diamond Bar

Address

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Started

Apr 7, 5:20 AM

Last Updated

2 months ago

Apr 7, 5:20 AM

Resolved

Apr 7, 5:20 AM

Coordinates

34.0341, -117.8073

Involved Parties 2 partys

Driver At Fault Male age 44

Vehicle

TOYOTA SIENNA

Direction

Speed Limit

45 mph

Movement

Making Left Turn

Sobriety

Had Not Been Drinking

Driver Male age 64

Vehicle

TESLA S

Direction

Speed Limit

45 mph

Movement

Proceeding Straight

Sobriety

Had Not Been Drinking

Injuries 4 persons

Passenger F age 84 · PassengerMiddleRight

Suspect Minor

Passenger M age 65 · PassengerFrontRight

Suspect Minor

Passenger M age 75 · PassengerMiddleLeft

Suspect Minor

Passenger F age 78 · PassengerMiddleMiddle

Suspect Minor

Source: ccrs · ID ccrs-5127118 First seen Apr 7, 2026 5:20 AM

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