1882 - 2021
Beginning of time period
End of time period
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14. October 2008
Traversing the Piora Basin
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19. June 1970
The tunnel plan
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31. December 1970
The abortive project begins
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17. May 2019
Escher forever?
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19. February 1995
Green light for the network option
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15. May 2012
No to the Porta Alpina
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31. December 1915
The first base tunnel
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26. September 1992
Yes to the NRLA
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18. May 1906
The second tunnel
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31. December 2016
43,152 trains