Route 5 was closed down after a deadly head-on accident involving a car and dump truck that killed one person.
The accident happened around 2pm Tuesday.
Authorities say a man in his 40s was killed when his car crossed into the opposite lane and hit a dump truck. The force of the crash propelled the car airborne into a utility pole.
Police closed both sides of Route 5 during the investigation.
Anyone with information should call East Windsor Police.