[Infernal]

> And IIRC the entire project was within budget

From TFA, "the one billion euro project is still ongoing, it will not be finished before 2026." There's plenty of time yet!

[roel_v]

That's only for finishing the park on top, and the new parks in the vicinity that are being build in one big project but that don't really have anything to do with the tunnel per se. The tunnels and all the connector roads are done now.