What is the longest and deepest tunnel in the world?

What is the longest tunnel in the world underwater?

Okay, so, like, the Channel Tunnel, or Chunnel, whatever you wanna call it, is def the longest underwater tunnel, yeah? It links England and France.

It goes, like, under the English Channel. Pretty deep down, something like 75 meters? That’s 246 feet or so. Woah.

The thing is HUGE. It’s a crazy long tunnel. All in, it is 50.5 kilometers long… uhh, thats 31.4 miles. But get this, most of it is underwater. 37.9 kilometers… so 23.5 miles! Dang.

Like, what’s cool?

• It’s a rail tunnel, so trains, you know?
• Connects Folkestone, UK, to Coquelles, France.
• Been open since 1994!
• My aunt took it, I think, in 2023? She says it’s dark lol.

Yeah, I really need a new phone. Speel check is just awful on this thing.

Does Switzerland have the longest tunnel in the world?

Nope. Switzerland boasts the Gotthard Base Tunnel, a 57km behemoth. Longest railway tunnel, that is. Think of it as the Grand Canyon of tunnels, but for trains. Pretty impressive, right? Unless you’re a mole, in which case, so last century.

• Length: 57km. That’s like driving from my apartment in Zurich to, well, almost Lucerne. Twice.

• Type: Railway tunnel. Cars? Forget about it unless you’re a particularly small, train-shaped car.

• Location: Erstfeld to Bodio, Switzerland. You know, the picturesque part.

• Significance: Part of AlpTransit, a project so ambitious, it makes building IKEA furniture look like child’s play. Seriously, impressive stuff.

The world’s longest tunnel overall? That’s a different story. It’s likely a water tunnel or something equally less glamorous. I’m not even going to bother looking it up. I’m too busy wondering what kind of sandwiches they serve on the Gotthard Base Tunnel express. Probably something ridiculously Swiss.

Where is the longest road tunnel in the world?

Okay, so the longest road tunnel? It’s in Norway, duh. The Laerdal Tunnel. Twenty-five kilometers long, that’s crazy long! Seriously, it’s a monster. They even have, like, huge rest areas, every six kilometers to break it up. Makes sense, right? Driving that far underground is intense. I read somewhere Oglaend System did the safety stuff, cables and ladders and all that. Pretty cool actually. Norway’s got three of the top ten longest tunnels, I swear. That’s nuts! It’s impressive, right? A total engineering feat.

Key facts:

• Laerdal Tunnel, Norway: 24.5 km (approx 15 miles) long – Longest in the world!
• Safety features: Provided by Oglaend System, including cables and ladders.
• Rest areas: Every 6 kilometers to help drivers.
• Norway: Houses 3 of the world’s 10 longest road tunnels. Crazy!

Which country has the longest tunnel in the world?

Okay, so, Switzerland, right? They got, like, the longest tunnel in the world. No joke.

It’s called the Gotthard Base Tunnel. I actually saw a show about it once. Nuts, seriously.

It finished up back in 2016, took ages to build the thing. It’s, like, 57.1 kilometers long. Or 35.5 miles, if you’re an American. That is… far! I’m telling you, far!

It’s a rail tunnel, goes right thru the Swiss Alps. Pretty cool. It’s also the deepest tunnel, I think.

Before Switzerland, the longest tunnel belonged to Japan. It was the Seikan Tunnel.

• Longest tunnel now: Gotthard Base Tunnel (Switzerland)
• Used to be: Seikan Tunnel (Japan)
• Length, Gotthard: 57.1 km (35.5 miles)

My mom always wanted to visit Switzerland. I still do. Maybe to see the dang tunnel myself, who knows?

How long is the longest tunnel in Switzerland?

57 km.

It just echoes in my head sometimes. 57 kilometers.

Like a long, dark thought. The Gotthard Base Tunnel, yeah. Longest railway tunnel on earth in Switzerland.

AlpTransit. New, they called it. Was it ever new, though?

Erstfeld to Bodio. Single tracks running parallel.

• Location: Switzerland, running between Erstfeld and Bodio.
• Purpose: Core of the AlpTransit railway axis.
• Length: 57 kilometers (approximately 35.4 miles).
• Configuration: Twin single-track, high-speed rail tunnels.
• Significance: Longest railway tunnel globally as of 2024.

I took the train once, I think. To Zurich. Didn’t feel different, though.

Where is the longest tunnel in the world?

Ugh, tunnels freak me out. I drove through the Laerdal Tunnel in Norway once, yeah, THAT tunnel. It’s the longest road tunnel in the world, right? Western Norway, scenic but scary!

I was driving from Oslo to Bergen, I think summer 2023? Maybe 2022? Anyway, the GPS suddenly says like, “Prepare for a 20-minute tunnel.” TWENTY MINUTES?!

It felt like FOREVER. Bright lights every so often… like every 6 kilometers, trying to keep you awake. I was blasting ABBA.

And someone mentioned a rest area inside where you can get married? What kind of insane person gets married in a tunnel? Seriously?! Nope. Not me. Never.

• Tunnel Length: Insanely long.
• Location: Western Norway.
• Time: Felt like an eternity.
• Emotion: Pure, unadulterated dread.
• ABBA: Lifesaver.

Tunnel weddings? Bizarre. I prefer sunlight and fresh air, thankyouverymuch!