The Gateway Tunnel may not be the only New Jersey infrastructure project stuck in the Trump administration's pipeline.

NJ Transit has not received approval from the federal government to go ahead with the long-sought 10-mile extension of the Hudson-Bergen Light Rail into Bergen County, said Senate Majority Leader Loretta Weinberg, D-Teaneck.

"They have not heard anything positive back from the federal government," Weinberg said.

Further, Weinberg said the Federal Transit Administration has changed the cost-sharing formula. Whereas the existing light rail network from Bayonne to North Bergen was built with an 80/20 or 70/30 federal/state cost share, she said, New Jersey may have to come up with half of the extension's $2 billion cost.

That would be consistent with what U.S. Department of Transportation officials have said in the past year: that big projects such as a new tunnel under the Hudson River into Penn Station or the new Portal Bridge leading to it would require states to put more "skin in the game."

NJ Transit did just that this past summer by raising its local share for the new Portal Bridge to $600 million. The agency is hoping for a favorable ruling from the Federal Transit Administration that could help the project receive federal grant money.

While raising the bar for urban transportation projects, the Trump administration has shifted federal dollars toward rural ones.

"What we’re hearing is that the rules have changed," Weinberg said, "unless you're a rural road."

Nancy Snyder, a spokeswoman for NJ Transit, said the agency has "continued dialogue" with the federal government and is "working with them to ensure we have a comprehensive document which meets all federal requirements."

A funding source for the project has yet to be identified, she added.

A Federal Transit Administration spokesman said NJ Transit had not applied for any federal funding for the Hudson-Bergen Light Rail Extension.

In a statement, the federal agency said it "encourages all project sponsors seeking federal funding for a public transportation capital project to also contribute significant local funding for their projects," but wouldn't specify what that contribution would be.

NJ Transit's board approved a draft environmental impact statement for the project in February.

New Jersey has $100 million in state Transportation Trust Fund money set aside for the light rail extension. That could pay for the preliminary engineering work on the project, Weinberg said. But not even that can get started until the feds sign off on the required environmental impact statement.

"We have the money," Weinberg said. "We’re ready to go."

The Hudson-Bergen Light Rail, which opened in 2000, exists entirely within Hudson County. The extension to Englewood would bring light rail into Bergen County with seven new stations. It would use the existing alignment of CSX's Northern Branch.

Weekday commuter trains once operated along the route from Nyack, New York, to Hoboken. Commuter rail service ended in 1966.

As originally proposed, the light rail extension would have ended in Tenafly. But facing opposition from that town's residents, it was scaled back to end at Englewood Hospital.

NJ Transit projects more than 12,000 daily riders on the extension, which will operate from 5 a.m. to 1 a.m. CSX will continue to operate freight trains on the line overnight.

Englewood riders could get to Weehawken in 22 minutes, and to Hoboken in 33 minutes.

Weinberg said she was told that officials from the Environmental Protection Agency's Region 2 office in New York would review the project next spring. She said nothing should prevent them from crossing the river to New Jersey to take a look sooner.

"Maybe they don’t want to get stuck in traffic," Weinberg said.