Leggett Interlocking. As CSX Y101-04 (CSXT 473 leading) prepares to depart Oak Point Yard on Saturday, November 4, 2023, the transitional scene is very much in evidence. In preparation for adding MTA Metro-North Railroad trains to the Amtrak Hell Gate Line, the vintage New York, New Haven, and Hartford Railroad catenary gantries are being replaced with modern fixtures. The train is passing the future "Leggett Interlocking" with about half of the switch installation completed.