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A comment on NYC's brand new subway is the most expensive in the world. Parent comment

Re:NYC's brand new subway is the most expensive in the world by jpatokal on Monday January 02, 2017 @04:52AM (#13300184)
Tokyo's newest subway the Fukutoshin line, spanning some of Tokyo's most congested areas (Shibuya, Shinjuku, Ikebukuro), cost around $250m/km, so still around 1/4 of the NYC cost.
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Re:NYC's brand new subway is the most expensive in the world by cmurf on Monday January 02, 2017 @11:25AM (#13302027)
Where is this cost going? Manhattan has much harder soil and the new subway required an extensive dewatering and water proofing projects.
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