1882 - 2021
Beginning of time period
End of time period
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Phase 4: 1992 - 2021
Planning and realisation
-
3. October 1993
Work begins
-
Phase 1: 1882 - 1961
Growth in traffic
-
15. April 2004
The costs
-
31. August 2005
Control in the tunnel
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Phase 3: 1983 - 1993
Planning and referendum
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31. December 1988
Order, build, operate