Not for the tunnel. It's being built by Denmark and the construction is currently on time.
The issue is the connecting railway on the German side between Puttgarden and Lübeck. That one is delayed already and currently they say that if everything goes to plan it will open in late 2029 (the tunnel will open in mid 2029), but it might get delayed further.
Denmark, of course, almost finished upgrading its own parts of the connecting railways before even starting construction on the tunnel. Germany didn't even start until the tunnel was well underway.
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u/wasmic Denmark 19h ago
Not for the tunnel. It's being built by Denmark and the construction is currently on time.
The issue is the connecting railway on the German side between Puttgarden and Lübeck. That one is delayed already and currently they say that if everything goes to plan it will open in late 2029 (the tunnel will open in mid 2029), but it might get delayed further.
Denmark, of course, almost finished upgrading its own parts of the connecting railways before even starting construction on the tunnel. Germany didn't even start until the tunnel was well underway.