The bucket-type truck hit the signs for Route 120 East Rutherford/American Dream and the Meadowlands racetrack and football training facility around 3 p.m.
Police immediately closed the exit and two eastbound lanes.
Several lights were knocked off or pulled down and debris was scattered across the rain-slicked road, East Rutherford Deputy Police Chief Phillip Taormina said.
No injuries were reported, he said.
Rutherford police summoned the state Department of Transportation to remove the debris and inspect the signs.
The support structure wasn't compromised, responders said.
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