Inside world’s biggest ‘Lego tunnel’ that will be DUNKED underwater to connect Denmark & Germany in $7bn mega-project

THE world's biggest underwater "Lego tunnel" volition soon beryllium dunked into the water to make a bustling transportation betwixt Denmark and Germany.

The $7billion mega-project volition instal a sub-aquatic expressway for cars and trains betwixt Puttgarden, connected Germany's Fehmarn Island, and Rodby, connected Denmark's Lolland Island.

The caller transport artery volition accommodate a four-lane motorway and dual-track railway.

But what makes the Fehmarnbelt Tunnel truthful peculiar is the revolutionary engineering attack successful its construction.

It's going to beryllium pieced unneurotic from 89 idiosyncratic "precast" chunks that are built connected land.

These volition past beryllium sunk 40m down into the Baltic Sea and expertly joined to signifier the 18km-long corridor.

Lowering them successful to spot volition necessitate utmost precision truthful everything lines up perfectly.

Each conception of the transition volition measurement a gob-smacking 73,500 tonnes and beryllium 217m agelong - much than 2 full-size footie pitches.

The mill producing these needed to beryllium built specially due to the fact that they are truthful enormous.

The segments are fitted with watertight seals, called "bulkheads", to support the h2o retired erstwhile they're successful spot connected the oversea bed.

Usually, underwater tunnels are virtually carved retired done the earth with elephantine boring machines.

By making the blocks connected land, the developers tin minimise the disturbance to the marine world.

They person besides enactment successful spot measures to bounds the operation noise, and person cautiously plotted wherever to laic the blocks to debar damaging delicate habitats.

The groundbreaking task volition unfastened up bluish Europe and make a satellite of possibilities by connecting the 2 countries.

At the moment, it takes implicit 45 minutes to pootle crossed the Fehmarnbelt Strait successful the ferry.

Once the passageway is up-and-running, the travel volition instrumentality a specified 7 minutes by bid and 10 by car.

The passageway volition besides slash the obstruction travel clip betwixt Copenhagen and Hamburg from 4.5 hours to 2.5 hours.

Joining the 2 shores volition besides fortify communities and boost the accidental for trade.

The ribbon is owed to beryllium chopped successful 2029.

The Fehmarnbelt passageway volition go the longest underwater transition successful the world, surpassing the Øresund Tunnel successful Sweden which is 7.8km-long.

It has been touted arsenic a awesome of European unity and cross-border collaboration.