How do you build the world's longest immersed tunnel?
The answer is: With huge precast concrete, advanced technology - and inevitable challenges. The custom-built vessel IVY has been delayed by a year and a half, making the road to opening in 2029 even more challenging.
At the same time, the project must deal with underwater noise requirements, unforeseen seabed conditions and a changed framework since the contracts were signed.
Follow the story of how one of Europe's largest infrastructure projects continues to work despite adversity.
Read more here: Challenges in the Fehmarnbelt project
