Two of the injured are in critical condition. The third person suffered moderate injuries.
The driver of the dump truck was not injured.
The crash happened on the southbound Route 202 ramp to westbound Route 30 bypass in East Whiteland Township around 10 a.m. Wednesday.
Chopper 6 was overhead to find multiple rescuers working to free someone from the wreckage.
Heavy equipment was used to upright the dump truck. Firefighters and medics quickly removed a survivor from the Nissan Pathfinder and placed that person in an ambulance.
There was no immediate word on a cause of this crash.
Police are asking any witnesses to come forward as they try to figure out who may be at fault.
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