News: 0183154264

  ARM Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life (Terry Pratchett, Jingo)

First Segment of the Fehmarnbelt Tunnel Is In Place (heise.de)

(Friday May 08, 2026 @11:00AM (BeauHD) from the impressive-feats dept.)


Longtime Slashdot reader [1]Qbertino writes:

> The [2]Fehrmarnbelt tunnel is a European construction megaproject building a tunnel between Denmark and Germany, crossing the Fehmarnbelt in the Baltic sea. The first segment of the tunnel has [3]now successfully been placed in its designated spot . This is a yet-unseen, next-level engineering feat achieved by the Danish Sund & Baelt construction company. It took 14 hours and used a massive pontoon ship built specifically for this project.

>

> The tunnel segments are 217 meters long, weigh more than 73,000 metric tons, and have to be placed within a tolerance of 3 mm. The tunnel will eventually consist of 89 of these segments, be 18 km long, and connect the Danish city of Rodby with the German island Fehmarn through five individual tunnel tubes: two for cars, two for trains, and one rescue and maintenance tunnel. Crossing time will be reduced from a 45-minute ferry crossing to seven minutes by train or 10 minutes by car, and cut the travel time between the German city of Hamburg and the Danish capital, Copenhagen, down to 2.5 hours. The project's planned completion is set for the year 2029. German news Tagesschau has [4]some details and a neat animation, while further details are available [5]from the German tech news site Heise .



[1] https://slashdot.org/~Qbertino

[2] https://femern.com/the-tunnel/fehmarnbelt-tunnel/

[3] https://www.tagesschau.de/inland/regional/schleswigholstein/fehmarnbelt-tunnel-erstes-element-wird-heute-abgesenkt,fehmarnbelt-108.html

[4] https://www.tagesschau.de/inland/regional/schleswigholstein/fehmarnbelt-tunnel-erstes-element-wird-heute-abgesenkt,fehmarnbelt-108.html

[5] https://www.heise.de/news/Erstes-Segment-des-Fehmarnbelt-Tunnels-ist-an-Ort-und-Stelle-11285617.html



Re:Meanwhile (Score:5, Insightful)

by nightflameauto ( 6607976 )

> The USA is slowly crumbling [1]https://www.nspe.org/career-gr... [nspe.org]

We have to save all our money to build a ballroom so the fiddler can continue to play while the ship sinks, or the civilization burns, whichever metaphor you prefer.

[1] https://www.nspe.org/career-growth/pe-magazine/may-2020/bridges-receive-grade-d-deficient

Re:Meanwhile (Score:5, Informative)

by serviscope_minor ( 664417 )

This relentless focus on whomever's on the Other Team as the problem this election cycle, is the problem.

The "other team" as you put is is currently running your country with the Presidency, house, senate and Supreme Court. The absolutely should be getting relentless focus.

Would you rather the focus was on people not currently in power and who can't really do all that much?

Re: Meanwhile (Score:2)

by rezachi ( 10503306 )

Youâ(TM)re thinking too close to the current regime. The focus is always about the other team and trying to shut them out or undo their accomplishments no matter which party is in power. That is the problem being referred to.

Re:Meanwhile (Score:5, Insightful)

by jacks smirking reven ( 909048 )

The difference between one team (Biden's term and Harris' alternate future) and the current term absolutely destroys this bad faith both sides argument. You can't claim to be upset about an "oligarchy class" when one side clearly is the oligarchical one and you supported it.

You notice how this style of comment is all the more common now that it's crystal fucking clear how much worse one team is than the other? Almost like folks are coping with the fact they backed the wrong horse and they may have to face the fact that the signs were all there, that all the people they scoffed at while they pulled the hammer for Trump because "Harris had a weird laugh" were actually right and things are actually worse than that.

Re: (Score:3)

by drinkypoo ( 153816 )

> You can't claim to be upset about an "oligarchy class" when one side clearly is the oligarchical one and you supported it.

This really isn't true. Both parties constantly vote for more military funding for example, that's putting money directly into the pockets of oligarchs. And then there's the support for fossil energy.

What's true is that things get worse much quicker under one party than the other. But if we look at how they come to power there's been at least two elections with questionable results, especially bush v gore, where the Democrats just threw up their hands and gave up. Meanwhile Republicans contest the results o

Re: (Score:3, Informative)

by smooth wombat ( 796938 )

There was no issue until Israel drug the U.S. by the nose into a war it can't win.

Remind everyone again who it is that keeps attacking its neighbors claiming "self defense" then whines it's the victim? Or who has been saying another country is "two weeks away" from nuclear weapons for the past 40 years?

Re: (Score:2)

by jacks smirking reven ( 909048 )

You are purposely using a stupid argument because you are a bad faith troll but for anyone else reading

When 2030 rolls around and they've abided by the deal then by logical conclusion the upsides for them are worth it and they are likely willing to extend the deal because they are doing better economically.

If they renege then guess what? You can actually bomb them at that point BUT you can actually do it with broad international support. You can actually build a coalition like Gulf War 1 and actually accom

Re: (Score:2)

by jacks smirking reven ( 909048 )

Look I'm not here to say Democrats are faultless or not in need of improvement but the difference today is quite stark. Sure both "support military funding" but 1. that issue is still broadly popular with the electorate, 2. the US will always have a need for a large military because as we are seeing when the US starts to withdraw from the world stage the world gets more chaotic and 3. scale matters, there's no world where a Harris admin is asking for a $1.5T military budget, no world where she is turning s

Re: (Score:3)

by sabbede ( 2678435 )

Democrats have lost touch with voters, yes. But that's because the party has moved so far to left that they can't see the center anymore. The GOP moved 2% since 2008, Democrats moved 31%.

Re: (Score:2)

by jacks smirking reven ( 909048 )

This is absolute cope. Show me how the Democratic party moved "so far left" with actual policies and actions and not social media culture war bullshit. Show me legislation, show me actions.

The democrat voters elected Joe Biden, not Bernie Sanders. The Republicans told Nikki Haley to fuck off and chose Trump.

Saying the Republicans only moved 2% since 2008-2026 just tells me they were always corrupt irresponsible liars and you all enjoy that fact.

Re: (Score:2)

by jacks smirking reven ( 909048 )

Ahh yes, who can forget the omnicause, we should nay MUST boil all politics down to Israel.

You know this is a loser argument for you on both ends right? If you're right and Israel is the issue that caused Harris' loss then congrats, all you did was subject Palestinians to even worse outcomes and elected an admin who does not care about them and can never be moved on the issue. You have become complicit in their suffering while the Harris voters tried to help even if it wasn't perfect for you.

Almost like y

Re: (Score:3)

by nightflameauto ( 6607976 )

> This relentless focus on whomever's on the Other Team as the problem this election cycle, is the problem.While money flows upward toward the new oligarchy class and corruption rises, you're kept bickering with no clue. But it sure feels great to have a team to root for, doesn't it?

Pray tell, what team am I rooting for? The Democrats don't really do anything for me either. And I have no problem roasting the hell out of them for their ineptitude. Without which, Donald Trump wouldn't have been able to achieve an electoral victory. Twice.

An attack on Trump's stupidity is not praise for the other side. You've fallen into your own dichotomy with that one.

Re: (Score:1)

by Goddamnferret ( 2556710 )

*so the diddlers can continue to play while the ship sinks.

Re: (Score:2)

by Anonymous Coward

We need better infrastructure and future planning.

Re: (Score:2)

by Waffle Iron ( 339739 )

> Is the USA in need of a tunnel to Denmark?

As a matter of fact, yes. Specifically, to the Greenland region.

Although a golden bridge of grossly outsized proportions and festooned with tacky ornamentation would be much preferred.

Re: (Score:3)

by Ol Olsoc ( 1175323 )

> ..in the EU, they used Celcius

In the EU it isn't spelled Celsius?

Re: (Score:2)

by ls671 ( 1122017 )

I think he is asking why they call it the Fahrenheit tunnel... /s

I liked that ferry (Score:5, Interesting)

by Misagon ( 1135 )

I have travelled the ferry between Roedby and Puttgarden several times on a train.

It had felt a little unsafe to get out of the train to leave your belongings behind during the crossing, but it was a nice change of pace.

It was nice to get out on the deck and get a view of the Femern Baelt straight. That is something that future train travellers will be denied.

The worst part was for the train sometimes having to wait for the next ferry. That time should also be accounted for when calculating time savings.

More information (Score:4, Informative)

by necro81 ( 917438 )

Practical Engineering [1]has a video [youtube.com] about this project on Youtube, as does the [2]B1M channel [youtube.com].

Having taken the train from Copenhagen to Hamburg before, this will be a massive improvement.

[1] https://www.youtube.com/watch?v=jPJCYrxqyT8

[2] https://www.youtube.com/watch?v=QiYvXKQksgI

Re: More information (Score:2)

by bazorg ( 911295 )

Thanks! I'm a bit curious about the 217m section length ðY"

Hell hath frozen over! (Score:5, Funny)

by evanh ( 627108 )

A news article posted on Slashdot that hasn't been stripped of the original metric numbers! Refreshing.

Re: (Score:2)

by AlanObject ( 3603453 )

Yeah we would have expected it to to be stated in number of football fields or something like that.

Re: (Score:3)

by TwistedGreen ( 80055 )

217 meters is approximately 43 rods, if that helps

Re: (Score:2)

by thegarbz ( 1787294 )

It's okay I got you: Here's the TL;DR translation.

The travel time from Hamburg to Copenhagen will be reduced to 1.04166/140th of a fortnight.

The ferry to the island which used to take 1.5625/700th of a fortnight now takes 2.7666/5600th of a fortnight by train.

Re:Hell hath frozen over! (Score:4, Funny)

by Pseudonymous Powers ( 4097097 )

"The tunnel segments are 217 meters (two football fields) long, weigh more than 73,000 metric tons (slightly more than more than 73,000 REAL tons), and have to be placed within a tolerance of 3 mm (0 inches)."

Fixed. Thank you for bringing this oversight to our attention. Note, however, that this still lacks an analogy to liken this tunnel-for-cars to an actual car somehow.

snatched waste (Score:2)

by Pseudonymous Powers ( 4097097 )

"The tunnel segments are 217 meters long, weigh more than 73,000 metric tons, and have to be placed within a tolerance of 3 mm."

I simply can't imagine why it wouldn't be orders of magnitude cheaper and faster to just use short segments that don't need to be aligned so precisely.

I used to think that maybe I, a simple country ignoramus, just wasn't equipped to understand the Wonders of the Modern Age. But the more glimpses I snatch of the wiring and plumbing of the Wonders, the more I think somebody in admin

Re: (Score:2, Informative)

by Anonymous Coward

I gottcha bro

[1]I simply can't imagine why it wouldn't be orders of magnitude cheaper and faster to just use short segments that don't need to be aligned so precisely. [google.com]

[1] https://www.google.com/search?q=%22The+tunnel+segments+are+217+meters+long%2C+weigh+more+than+73%2C000+metric+tons%2C+and+have+to+be+placed+within+a+tolerance+of+3+mm.%22+I+simply+can't+imagine+why+it+wouldn't+be+orders+of+magnitude+cheaper+and+faster+to+just+use+short+segments+that+don't+need+to+be+aligned+so+precisely.

Financing (Score:3)

by PPH ( 736903 )

From TFA:

> The Fehmarnbelt link is funded by loans and will be paid for by its users.

So much for the [1]Nordic Model [wikipedia.org]. I would grieve the death of Socialism over Karl Marx's grave. But there's a fee to get in to see it.

[1] https://en.wikipedia.org/wiki/Nordic_model

What a cool thing! (Score:2)

by sabbede ( 2678435 )

Imagine, 73k tonnes dropped with 3mm accuracy. That's frikkin impressive!

Accuracey (Score:2)

by nuckfuts ( 690967 )

> The tunnel segments... weigh more than 73,000 metric tons, and have to be placed within a tolerance of 3 mm.

That is mind-blowing.

Hey Ted Stevens! (Score:3)

by hackertourist ( 2202674 )

That's not a series of tubes, THIS is a series of tubes!

Question On How It Works (Score:2)

by SlashbotAgent ( 6477336 )

The video describes how the tunnel segments float and how they fill sections with water to ballast and position the segments. I understand that perfectly. Clever.

But, then the water is pumped out to make the tunnel usable. How do they keep it submerged? What prevents the entire tunnel popping up to the surface?

Never face facts; if you do you'll never get up in the morning.
-- Marlo Thomas