Accident Moderate Severity Resolved

Injury crash — 1 injured on SR-57 S/B (ORANGE FWY)

A injury accident was reported on SR-57 S/B (ORANGE FWY) near Diamond Bar on December 14, 2025 at 12:40 PM. 2 parties involved, 1 injury.

1 injured. Primary factor: VC 21658(A) UNSAFE LANE CHANGE/ETC. Near SUNSET CROSSING ROAD.

Road

Area

Diamond Bar

Address

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Started

Dec 14, 4:40 AM

Last Updated

5 months, 1 week ago

Dec 14, 4:40 AM

Resolved

Dec 14, 4:40 AM

Coordinates

34.0268, -117.8122

Involved Parties 2 partys

Driver At Fault Male age 51

Vehicle

TOYT SIENNA

Direction

Speed Limit

65 mph

Movement

Changing Lanes

Sobriety

Had Not Been Drinking

Driver Female age 73

Vehicle

HOND PILOT

Direction

Speed Limit

65 mph

Movement

Proceeding Straight

Sobriety

Had Not Been Drinking

Injuries 1 person

Driver F age 73

Suspect Minor

Source: ccrs · ID ccrs-4981757 First seen Dec 14, 2025 4:40 AM