This isn’t the kind of transparency straphangers are looking for.

A hole in a Manhattan sidewalk has grown large enough that New Yorkers can look down and see subway trains running right underneath their feet, frightening photos taken Tuesday morning show.

The fissure, at the corner of Spring Street and Lafayette Street in Nolita, is right above the Spring Street 6 train station.

The MTA said the sidewalk around the 1.5-inch hole — which is also surrounded by several large cracks — had been cordoned off and the transit agency was investigating.

“An NYC Transit engineering crew has inspected the ceiling of the Spring Street #6 station and will make the necessary repairs to the station. NYCT is coordinating with NYCDOT to make sure the necessary repairs are made to the sidewalk,” MTA Spokesperson David Steckel told The Post in a statement.

“In the meantime, the area around the hole both at street level and on the platform below have been barricaded and the station is safe for customers.”

It’s unclear what caused the sidewalk to crack open, but water leaking through the hole has caused the “deterioration” of the subway ceiling, MTA communications director Eugene Resnick told The Post later Tuesday evening.

“Water infiltration is a constant challenge to the integrity of any underground infrastructure,” said Resnick.

The MTA said it is designing a solution to reinforce the ceiling, “which will be constructed as soon as possible.” The cost of the repairs have not yet been determined.

The agency said it is coordinating with the Department of Transportation to ensure the sidewalk is also fixed.

The DOT deferred to the MTA when reached for comment Tuesday morning.

New Yorkers, however, seemed mostly unphased by the gaping hole.

“People just walked by it. Nobody really noticed it until yesterday, then it was reported,” an employee at the nearby Blank Street Coffee told The Post, adding that his coworker had called the city about it.

“It’s definitely not something that should be there or covered with just a cone,” the man, who only gave his name as Demetre, said. “It’s New York, it doesn’t surprise me.”

Realtor Rebecca Ward said that she thinks she saw a video of the hole on Instagram on Monday — but it also doesn’t phase her.

“I don’t really care too much. There are holes all along the sidewalk by the shops,” she said, indicating to an open cellar door nearby.

“I’ve never fallen in. It’s not a problem.”

The aging Spring Street IRT subway station first opened to the public in October 1904, according to nycsubway.org.

IRT stations, named after the private contractor Interborough Rapid Transit Company, are typically about 18 feet below the street, with the tracks about three feet lower, NYC architect Michael Wyetzner explained in a video for the Youtube channel Architectural Digest.

The stations were typically constructed using the “cut and cover” method, which included cutting a massive trench in the middle of the street, laying down the tracks, then constructing support walls and platforms around it, Wyetzner said.

Directly above the tunnels, the city would run its utility lines, the architect continued. The road would then be built on top.