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Posted by AlM on Tue Jan 8 12:19:36 2002, in response to Re: Lower 42 Street,
posted by Peter Dougherty on Tue Jan 8 11:34:26 2002.
If you assume one set of tracks has to be 16' below another (25 steps - that seems about typical in actual practice), then the #7 needs to drop down another 8.5' between the west end of the Times Square Station (roughly mid-block between 7th and 8th Aves.) and 8th Ave.
That's a drop of 8.5' in a length of 500', or under 2% grade. That shouldn't be a problem, should it?
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