The world’s longest road and rail tunnel

The world’s longest road and rail tunnel will require a factory that, in terms of its size, is set to be a record-breaker. The Fehmarnbelt immersed tunnel between Rødbyhavn in Denmark and Puttgarden in Germany will be 18 km long and built from 79 concrete elements and an additional 10 special elements equipped with lower Read more about The world’s longest road and rail tunnel[…]