Accident Moderate Severity Resolved

Injury crash — 2 injured, rear-end on SR-57 N/B (ORANGE FWY)

A injury accident was reported on SR-57 N/B (ORANGE FWY) near Diamond Bar on April 12, 2026 at 9:20 AM. 2 parties involved, 2 injuries.

2 injured. Primary factor: VC 21658(A) UNSAFE LANE CHANGE/ETC. Weather: CLOUDY. Near PATHFINDER ROAD.

Road

Area

Diamond Bar

Address

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Started

Apr 12, 2:20 AM

Last Updated

3 months, 2 weeks ago

Apr 12, 2:20 AM

Resolved

Apr 12, 2:20 AM

Coordinates

33.9913, -117.8425

Involved Parties 2 partys

Driver At Fault Female age 61

Vehicle

MAZD 3

Direction

Speed Limit

65 mph

Movement

Changing Lanes

Sobriety

Had Not Been Drinking

Driver Female age 19

Vehicle

HYUN GENESIS

Direction

Speed Limit

65 mph

Movement

Proceeding Straight

Sobriety

Had Not Been Drinking

Injuries 3 persons

Passenger F age 36 · PassengerFrontRight

Possible Injury

Driver F age 61

Possible Injury

Occupant F age 16 · PassengerFrontRight

Unknown

Source: ccrs · ID ccrs-5135071 First seen Apr 12, 2026 2:20 AM