In recent weeks, two major new subsea railway tunnel projects have commenced: The Fehmarnbelt-Tunnel with a length of 18.1km, linking Germany to Denmark and the Ningbo-Zhoushan tunnel in eastern China with a length of 16km. But what is it all about these kind of challenging engineering works? Why building subsea railway tunnels Subsea railway tunnels … Continue reading A decade of subsea railway tunnels is looming