The tunnel’s length would depend upon the route taken; the shortest distance across would have a submarine length of 50km, making it the longest undersea tunnel in the world.
The Estonian geology centre has already prepared a study about the route selection, which was commissioned by the Finnish authorities that cost tens of thousands of euros.
According to calculations, the tunnel project would cost between EUR 2bn – 3bn (USD 2.6 – 3.9) and construction works could start in 2050.
