Ask a Norwegian to dig a tunnel and they will turn into a gopher on meth. We are the undisputed champions of tunnels in terms of tunnel density. Show us a piece of rock and we'll put a big hole in it.

However.

Ask a Norwegian to fix a piece of road and you will be staring at a hole in the ground for 4 years while people will take turns leaning on a shovel in that hole while surrounded by at least 4 different categories of supervisor or inspector.

But to inject some realism: if they say 4 years they can probably do it in 5. And it'll take another year or so to fix fuck-ups that in retrospect will look stupid and thoughtless, but which are realistically unavoidable. We'll whine about it. A lot. And each week the whole country will be experts on something new. Like evil-sounding compounds for stopping water ingress or how to insulate wires. And then suddenly it starts working.