Accident Moderate Severity Resolved

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

A injury accident was reported on SR-57 N/B (ORANGE FWY) near Diamond Bar on September 11, 2026 at 5:53 PM. 2 parties involved, 2 injuries.

2 injured. Primary factor: VC 22350 UNSAFE SPEED FOR PREVAILING CONDITIONS. Near PATHFINDER ROAD.

Road

Area

Diamond Bar

Address

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Started

Sep 11, 10:53 AM

Last Updated

1 month, 2 weeks ago

Sep 11, 10:53 AM

Resolved

Sep 11, 10:53 AM

Coordinates

33.9798, -117.8416

Involved Parties 2 partys

Driver At Fault

Vehicle

TRUCK

Direction

Speed Limit

65 mph

Movement

Proceeding Straight

Driver Male age 18

Vehicle

HYUN SONATA

Direction

Speed Limit

65 mph

Movement

Stopped

Sobriety

Had Not Been Drinking

Injuries 3 persons

Occupant F age 18 · PassengerFrontRight

Unknown

Passenger F age 17 · PassengerMiddleMiddle

Possible Injury

Driver M age 18

Possible Injury

Source: ccrs · ID ccrs-5324011 First seen Sep 11, 2026 10:53 AM