5 ms·

Gotthard base tunnel? https://en.wikipedia.org/wiki/Gotthard_Base_Tunnel https://en.wikipedia.org/wiki/Gotthard_Base_Tunnel

dalke 10y ago
I think it's okay for the second or third or even tenth largest project to be called "one of the world's largest projects". FWIW, Crossrail is on this list of the 25 "most impressive" projects - http://www.popularmechanics.com/technology/g2121/the-worlds-25-most-impressive-megaprojects/ http://www.popularmechanics.com/technology/g2121/the-worlds-... . https://en.wikipedia.org/wiki/List_of_transport_megaprojects https://en.wikipedia.org/wiki/List_of_transport_megaprojects describes it as a "megaproject", and I can agree that everything which is a megaproject is one of the largest construction projects in the world. Looking at the list of projects which are "under construction", and ordered by cost, Crossrail is #6 at US$25B and the GBT is #10 at US$10B.
twic 10y ago
Gotthard base tunnel: 4 million man hours http://edition.cnn.com/2011/WORLD/europe/11/23/gotthard.base.tunnel/ http://edition.cnn.com/2011/WORLD/europe/11/23/gotthard.base... Crossrail: 20 million man hours three years ago http://m.londonlovesbusiness.com/business-news/london-transport/stunning-crossrail-london-images-revealed/4356.article http://m.londonlovesbusiness.com/business-news/london-transp... I'd love to see some more reliable figures, though.
- m-i-l 10y ago
  Crossrail is at 100 million working hours so far, with 10,000 people working across over 40 construction sites, according to http://www.crossrail.co.uk/news/crossrail-in-numbers http://www.crossrail.co.uk/news/crossrail-in-numbers (which also describes it as "Europe's largest construction project").
jpatokal 10y ago
Longer and deeper, sure, but Crossrail is a whole other level of complexity due to being built under of one of the world's largest and most congested cities.

dalke 10y ago

I think it's okay for the second or third or even tenth largest project to be called "one of the world's largest projects". FWIW, Crossrail is on this list of the 25 "most impressive" projects - http://www.popularmechanics.com/technology/g2121/the-worlds-25-most-impressive-megaprojects/ http://www.popularmechanics.com/technology/g2121/the-worlds-... . https://en.wikipedia.org/wiki/List_of_transport_megaprojects https://en.wikipedia.org/wiki/List_of_transport_megaprojects describes it as a "megaproject", and I can agree that everything which is a megaproject is one of the largest construction projects in the world. Looking at the list of projects which are "under construction", and ordered by cost, Crossrail is #6 at US$25B and the GBT is #10 at US$10B.

twic 10y ago

Gotthard base tunnel: 4 million man hours http://edition.cnn.com/2011/WORLD/europe/11/23/gotthard.base.tunnel/ http://edition.cnn.com/2011/WORLD/europe/11/23/gotthard.base... Crossrail: 20 million man hours three years ago http://m.londonlovesbusiness.com/business-news/london-transport/stunning-crossrail-london-images-revealed/4356.article http://m.londonlovesbusiness.com/business-news/london-transp... I'd love to see some more reliable figures, though.

m-i-l 10y ago
Crossrail is at 100 million working hours so far, with 10,000 people working across over 40 construction sites, according to http://www.crossrail.co.uk/news/crossrail-in-numbers http://www.crossrail.co.uk/news/crossrail-in-numbers (which also describes it as "Europe's largest construction project").

jpatokal 10y ago

Longer and deeper, sure, but Crossrail is a whole other level of complexity due to being built under of one of the world's largest and most congested cities.