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postcynical
638 days ago
13bln$ gets you a 35 mile tunnel thru the swiss alps.
https://en.m.wikipedia.org/wiki/Gotthard_Base_Tunnel
1 comments
yywwbbn
638 days ago
I’d assume that drilling a tunnel under a mountain would be significantly cheaper than digging one in a densely inhabited city (in a seismically active area).
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postcynical
638 days ago
3miles for $2bln under densely inhabitated city.
https://en.wikipedia.org/wiki/Weinberg_Tunnel
link