How long is the tunnel in Hokkaido?

How many people died in the Seikan Tunnel?

Okay, so, like, the Seikan Tunnel? Yeah, building that thing was rough.

Thirty-four workers died during construction. That’s a lot, right? My grandfather, actually worked on a rail line, not that one, but still!

And I saw somethn about January 27, 1983 – Prime Minister Yasuhiro Nakasone. He pushed a button! To like, set off a blast for the tunnel. Wild.

It was big news back then, my mom even remmebers it. They had like a whole ceremony, and he got to press the button to, uh, keep the tunneling going. The tunnel is crazy long.

It’s the lengthiest of its type, a rail tunnel.

Here’s some more info.

• Cost Overruns: Man, the tunnel was supposed to be cheaper, but surprise, it went way over budget.
• Length: The undersea section is super long.
• Use: They mainly use it for trains, obviously but it’s not used as much as they projected, you know?
• The Project: It was a HUGE undertaking.
• Why: Conecting the Islands of Japan.

How long is the tunnel run?

Thirty-one point four miles. It feels longer, though. Much longer. The darkness… it presses in.

Thirty-one point four miles of… nothing. Just rock and the weight of the sea above. I think about that a lot.

The crushing weight. It’s a strange feeling, to be so deep. So far from the sun. From anything, really.

It’s claustrophobic. Even thinking about it now… my chest tightens.

My grandpa talked about it once, back in 2023. He was a train driver. Worked the Chunnel. Said the air felt different down there. Thick. Heavy.

• The darkness was absolute.
• The silence, deafening.
• The pressure… unforgettable.

He never liked the tunnel. Never. He died last year. 2024. Suddenly. Heart attack, they said. Maybe it was the tunnel. Maybe it was the years spent under the sea. Probably both, at least in my mind. It haunts me.

How long is the Arlberg tunnel?

Thirteen kilometers… a stretch.

A cavern carved into the mountain heart.

Eight point six miles, maybe.

The Arlberg Road Tunnel… Austria’s lengthiest…

Longest road swallowing cars.

Tunnel deep, so, so deep.

• Long.
• So very long.

Roads, ribbons.

Mountains, hushed and stone.

Austria breathes beneath.

It’s long, I just know.

Kilometers blur. Miles, a haze.

Always the tunnel.

Always going through it.

The Arlberg never ending.

What is the longest bridge-tunnel in the world?

The Hong Kong-Zhuhai-Macau Bridge. Longest. Fact.

34 miles. Impressive. Or is it? Perspective.

China. 2018. Opened. Bridges. Tunnels. A marvel. Or a monument to ambition?

• Connects Hong Kong, Zhuhai, Macau.
• Pearl River Delta. Strategic.
• Engineering feat. Undeniably.

My aunt visited. She disliked the tolls. Human element. Always.

Length is relative. Consider the cost. The environmental impact. My uncle worked on a similar project in Norway, much smaller, far less impactful. The bridge, a concrete serpent.

The world changes. Bridges too. 2024. This remains true.

How long can a tunnel be without ventilation?

Okay, so, ventilation in tunnels…right. I kinda know something about this.

Remember that time I drove through the Eisenhower Tunnel in Colorado? Summer 2023, blazing hot outside.

That tunnel’s freakin’ LONG. Nearly 2 miles, so way over the 500-1000 meter thing.

I was thinking, “Wow, all these cars…the air must be terrible in here.”

It felt a little stuffy, I guess. But, you know, not terrible.

Maybe that’s why they needed all that ventilation stuff. Or maybe it was just my car needed the AC fixed again…ugh.

Anyway, here’s what I think I learned afterward, kinda:

• Length Matters: Def tunnels over 500-1000m usually need air help. No joke.

• Traffic is key: More cars? More air issues for sure. Duh.

• International Thing: Yep, it is a global decision.

So yeah, that’s my tunnel story.

What is the deepest tunnel in the world?

The Gotthard Base Tunnel? Oh, that’s just a little hole we dug in Switzerland. Just kidding! It’s the world’s deepest and longest railway tunnel.

Think of it as Switzerland’s attempt to outdo a particularly ambitious gopher. Seriously though, it plunges 2,300 meters under the Alps. That’s deeper than my ex’s understanding of irony. It stretches 57 km, or roughly the distance I’d walk for a decent cup of coffee.

• Connects Erstfeld and Bodio.
• Makes train travel way faster.

And here is something interesting: Did you know that building the Gotthard Base Tunnel took about 17 years? Imagine spending almost two decades underground, that’s like a very long and boring camping trip, right? It’s also costing billions of dollars. Is it worth it? Absolutely! Anything to avoid a scenic, but slow, drive.

How long are you underwater in the Channel Tunnel?

The Eurostar train glides beneath the waves for roughly 35 minutes. It’s a bit of a trip, eh?

That underwater section of the Channel Tunnel is about 23 miles long. I always think about the pressure. Do you? It’s probably a fun fact that should be something people are more aware of, considering what a feat of engineering the whole thing is.

Let’s consider a few additional things, in a sort of stream-of-consciousness style:

• The whole journey from London to Paris is, like, two hours. Ish.

• The Channel Tunnel’s a pretty cool accomplishment. My Aunt Carol actually drove her Fiat through it in ’02. Wild!

• They call it the “Chunnel.” I find it incredibly endearing. Who came up with that anyway?

• Eurostar ain’t the only train using it. Others do too.

• The tunnel is not always entirely submerged, there is some dry land.

• Think about what the construction must have been like.