Accident Low Severity Resolved

Traffic collision — hit and run on SR-57 S/B (ORANGE FWY)

A minor accident was reported on SR-57 S/B (ORANGE FWY) near Diamond Bar on December 29, 2025 at 12:40 PM. 2 parties involved.

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

Road

Area

Diamond Bar

Address

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Started

Dec 29, 4:40 AM

Last Updated

9 months, 4 weeks ago

Dec 29, 4:40 AM

Resolved

Dec 29, 4:40 AM

Coordinates

34.0286, -117.8117

Involved Parties 2 partys

Driver At Fault

Direction

Speed Limit

55 mph

Movement

Changing Lanes

Driver Female age 75

Vehicle

HOND HR-V

Direction

Speed Limit

65 mph

Movement

Proceeding Straight

Sobriety

Had Not Been Drinking

Injuries 1 person

Occupant M age 83 · PassengerFrontRight

Unknown

Source: ccrs · ID ccrs-4995344 First seen Dec 29, 2025 4:40 AM