The officer tried stopping a motorist on Ackermann Avenue near Route 21 for careless driving shortly before 11 p.m. Wednesday, Detective Lt. Robert Bracken said.
He ended up pursuing the driver after the sedan sped off onto northbound Route 21, he said.
The chase continued on River Road to Outwater Lane, with the fleeing motorist turning off his lights and driving recklessly, the lieutenant said.
They crossed the railroad tracks near Plauderville Station next to Columbus Park when the police vehicle became airborne, Bracken said.
It overturned, knocking down a couple of signs and snapping a utility pole at Eberhard Lane, he said.
The officer was treated at St. Joseph’s Regional Medical Center and released, Bracken said.
Meanwhile, police continued to search for the sedan.