The Port Authority reopened a shuttered wheelchair-accessible PATH train turnstile — the day after outraged straphangers posted pictures on Twitter of a huge gate blocking the entryway and said it was a danger.

“@PATHTrain why are you blocking your wheelchair gates?” wrote user James Sinclair over an image of the padlocked metal barrier in front of the wide wheelchair entry at the Newark Penn Station PATH station in New Jersey.

The interstate transit agency responded 32 hours later to say the gate had been closed off “as a result of high fare evasion rates.”

“Please see an agent for assistance and they will allow access to the gate,” the agency responded to the original tweet.

The response outraged Sinclair — along with dozens of other riders and advocates.

The gate “[makes] someone with disabilities miss their train,” Sinclair posted. He suggested it could violate the federal Americans with Disabilities Act.

“ADA means equal access, not having to ask for permission to use your train,” he said.

Others chimed in with the same concern: “I’m pretty sure you’ll lose more money in an ADA suit than you could hope to gain from this stunt,” user @teh_maxh replied.

Port Authority spokeswoman Lindsay Kryzak told The Post this particular turnstile had seen rates of fare-skipping gate-jumpers so high that it had actually been broken “by people trying to hold it open.”

Kryzak said the gate was reopened around noon Wednesday.

“Improving customer experience is one of our top priorities, and we regret the impact this has had on our customers,” she said.