Just opened last month at Hershey Amusement Park in PA, not too far from NYC. A long story about how it was built:

In just two months’ time, riders will crest this same piece of steel, then hurtle down a record-setting 97-degree slope—yes, that’s 7 degrees past vertical—on the steepest and most severe roller-coaster descent in the United States. “When you come over the apex of the curve, you’re lifted forward into the harness,” says Kent Bachmann, the park’s director of design and engineering. “The track actually disappears for a few seconds.” And that’s just the beginning: Fahrenheit will provide 2 solid minutes of corkscrews, barrel rolls and inversions. “That way every time you get on this ride,” Bachmann says, “you can have a different experience.

Video of the ride.