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Tunnels, Caverns and Shafts

Most Important Structures in this Category

  • entry with pictures
  • new entry (30 days)
  • updated entry (14 days)
# Name Country length
1 Päijänne Water Tunnel Finland 120000 m
2 Orange Fish Tunnel South Africa 82800 m
3 Gotthard Base Tunnel Switzerland 57091 m
4 Seikan Tunnel Japan 53850 m
5 Emscher Sewage Canal Germany 51000
6 Channel Tunnel United Kingdom 50450 m
7 Hálslón Headrace Tunnel Iceland 39700 m
8 Lötschberg Base Tunnel Switzerland 34576.6016 m
9 Guadarrama Tunnel Spain 28418.6600 m
10 MetroWest Water Supply Tunnel USA 28320 m

Note: there are too many entries in this category and all its subcategories combined. To obtain a list of structures please go through one of the subcategories.

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Italy, added on 16/05/2022

Italy, added on 16/05/2022

Italy, added on 16/05/2022

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Netherlands (1980), modified on 17/05/2022

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Italy (1974)
2 new media added on 14/05/2022

Italy (1971)
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Italy
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