Quote:
Originally Posted by iheartthed
Additionally, Amtrak also has at-grade tracks along the far west side of Manhattan next to the Hudson Parkway. I think those are at-grade or in an uncovered trench for much of the way through Manhattan. I believe they are covered on the Upper West Side and then again when entering Penn Station.
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I don't believe Amtrak has any at-grade tracks anywhere in Manhattan except at the very northern tip.
In Midtown, the Amtrak line is mostly underground, though a few spots are still open trench (though being covered as part of Hudson Yards and ancillary West Side development). Then it enters a newer tunnel under the Riverside South development, which connects directly to the older Riverside Park tunnel. This tunnel ends around 125th Street, but then runs on an elevated structure. At some point the elevated structure descends into a trench between the Hudson River and Henry Hudson Parkway, and then goes at-grade.
North of 160th Street or so, it pretty much runs right along the river at grade. But there are no road crossings, of course, it's all separated with bridges/tunnels for pedestrians/traffic. You couldn't reach the tracks unless you're leaping over walls.
The other non-subway rail lines in Manhattan are either completely underground (Amtrak-LIRR-NJ Transit tunnel through Midtown) or underground/elevated (Metro North through East Side, which is subway from 42nd to 100th, then elevated till Bronx). The newest rail line, East Side Access (LIRR), is completely underground, and, by far the deepest rail tunnel in Manhattan. I'm counting PATH as subway, not commuter rail, BTW.