The incident was first reported at about 12:38 p.m. on the 9th Street Bridge, which connects Ocean City and Somers Point in Cape May County.
Landon Lucas, an 18-year-old flying for Paramount Air Service, reported that his plane began to experience engine trouble as he was flying near Steel Pier in Atlantic City, officials said.
He released his banner into the ocean and was attempting to reach Ocean City Municipal Airport when he spotted a gap in traffic in the westbound lanes of the causeway.
Lucas landed the plane with no damage to the aircraft and no injury to himself or any drivers, officials said.
Investigators remained on the scene, and crews were working to tow the plane away.
"A single-engine Piper J3C-65 Cub landed on the Route 52 bridge near Ocean City, N.J., after the pilot declared an emergency at 12:37 p.m. local time today," the FAA said in a statement. "Only the pilot was on board...The FAA and the National Safety Transportation Board (sic) will investigate."
Both inbound lanes to Ocean City remained open to traffic, and a single outbound lane was open while authorities investigated.
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