The World's Most Incredible Undersea Tunnels

[@michaelcordes]

Simon you've been entertaining me since you had hair, no beard and a questionable dress sense. Thank you

[@ajaykumargoel9398]

Simon had hair??? Woahhhh

[@negativeindustrial]

That’s odd. I always pictured him as having been a bald, bearded baby.

[@jaredevildog6343]

Simon with hair.... 🤯

[@AwkwardSquirrel13]

Wait he wasn't born with a beard!?!

[@JasonKjellberg]

I remember the beardless time but how far back were the hair days?

[@j.chamberlaindedzul1820]

I really enjoyed this. I can’t wait to find out if they build the floating bridge. Thanks Simon!

[@grahamdauncey273]

Fun to see my local commute come up - I actually travel through the Ryfast tunnel to Stavanger every day to go to work! The new tunnels you mentioned (Rogfast and the floating tunnel proposed across Sognefjord) are part of the E39 route project which could be a really interesting video as that includes lots of other tunnels and bridges as well!

[@cleanerben9636]

floating tunnel sounds like a really, really bad idea

[@BradGryphonn]

Australia, particularly Brisbane in Queensland, has embraced tunnel tech. There are road, and soon-to-be-finished rail networks across Brisbane that go under both suburbs and the city, as well as the river. It may be worth looking into the development of the Brisbane tunnel traffic network.

[@LJMpictures]

We dug under a river in Melbourne. and that's about it really, LOL

[@jamiemurray8182]

Lets go Brizzie!

[@CaseTheCorvetteMan]

The problem with those in Bris, and with the shit show that are South East QLD roads in general, is that they're no where near adequate for future growth. They spend 5 years adding one lane to the highway, which wasn't enough when they started, and won't be enough for the next few years until to dick around with it all again. Can't upgrade those tunnels with any sort of ease, and they're too small to carry the volume of traffic now. I mean two lanes each way??? You're kidding me right...

[@Blanchy10]

Sydney Harbour tunnel too

[@andrewjones-productions]

It's a pity that Simon's researchers didn't focus a little bit more on Japan. The 'Tokyo Bay Aqua-Line' is part bridge and part tunnel linking the cities of Kisarazu in Chiba with Kawasaki in Kanagawa. Then there is the second longest road tunnel in the world, the Yamate Tunnel which is 18km long and interweaves with the subway rail network of Tokyo and in some places the tunnels are less than 30cm apart. Simon mentioned that Japan is an archipelago and cited this as a reason for tunnels, but in actual fact, the only tunnel to link the major islands of Honshu, Kyushu, Shikoku and Hokkaido is the Seikan Tunnel (pronounced 'say-can'). Most of Japan's tunnels are due to topography. Specifically, steep mountainous terrain and also as building tunnels is often cheaper and easier than buying land in densely populated areas to create roads and railways.

[@movingforward3030]

So we have a part 2 possibility?

[@andrewjones-productions]

@@movingforward3030 Considering the general low level of Simon's researchers of late, I wouldn't hold my breath on that one.

[@jurellhouston]

Never thought I'd hear a Bainbridge Island name drop in the first 30 seconds of a video from a famous KZbinr. I grew up on the Rock (granted, almost nobody else calls it that) and for all it's faults it will always hold a special place in my heart. Simon & the Sideprojects team, thanks for bringing a smile to my face with that quick shoutout. Addendum: Awesome video, but I hope to God they never build a tunnel between Bainbridge and Seattle. Not that it's never been mentioned or that it wouldn't be cool to drive underneath the Puget Sound, but the amount of money it would cost is money that can be better spent on hundreds, if not thousands of more useful infrastructure projects.

[@tygenco]

And a crapton of money was already spent on the [SR]99 Tunnel that replaced the Viaduct--because of things needing to be structurally sound after so many earthquakes. Besides, everything along the waterfront is already so congested right now with reconstruction that if yet another project was added, heaven only knows how much more chaotic downtown would get.

[@PeterShipley1]

in the San Francisco Bay area there's a tunnel connecting San Francisco to Oakland ( only 3.6 miles /5.8 km, tiny and short compared to the things discussed in this video) what is a point of note it was constructed in sections that were floated out into the bay, and sunk. these submerged/sunken sections were then welded together , the retaining wall opened up and the water pumped out forming an underwater tube.

[@StfuFFS]

Yeah but the tunnel between Oakland and SF is for a train, not for cars. Puget Sound is actually a fjord so a tunnel world need to be pretty deep. Plus, with all the protected wildlife in the Sound it would need to be very delicate operation.

[@PeterShipley1]

@@StfuFFS I'm not debating the use or designation. I just thought the construction method was interesting as it somewhat differed slightly from the examples in the video.

[@AaronHorrocks]

There's also the Posey and Webster Street Tubes in Alameda.

[@bananawitchcraft]

It's pretty cool how earthquake-resistant they can make those things. The Transbay Tube withstood Loma Prieta in '89, but apparently it could get damaged to the point of flooding in a really major quake, so they're in the process of retrofitting it.

[@C.Fecteau-AU-MJ13]

It's not the water that may or not be over my head that fills me with a mild anxiety in such tunnels... They almost never fail. When I'm in any tunnel, especially in a heavy vehicle, fire is the thing on my mind. Ever since the Tullamarine disaster in Melbourne when I was a kid, I've always had this vision of burning to death, trapped in your vehicle. Hell of a way to go

[@NoahGooder]

well think of it this way: if a fire does happen and it breaks the tunnel there will nolonger be any fire.

[@DayneGodwin]

You wouldn't burn to death, you would more likely die of smoke inhalation. Not that it would be much better.

[@donquixoteupinhere]

@@NoahGooder Mr Badder, I see you’re trying to terrorise people again under your inverted alias…

[@NoahGooder]

@@donquixoteupinhere lol if you mean my last account? it got copyright striked to hell and because this was around the time youtube just started to implement thier contentID more agressively and also copyright trolls were abound.

[@jamesgaskin7757]

Like the people in the mont blanc tunnel fire, burned to death in the emergency shelter rooms

[@ellhullio26]

I've been thru the Holland Tunnel many times over the decades; going from New Jersey into Manhattan NYC, then back again. I guess the Holland Tunnel isn't famous enough for this...

[@MrTexasDan]

Not unless it is falling apart due to corruption and ineptitude ... then Simon's crew would be all over it.

[@tinkeralexander5639]

Bainbridge island has an entire culture around ferry schedules. They would never allow a tunnel to upset their obsessive watch checking.

[@kensims8214]

I have to say that I been a fan of your channels... I learned more from you than I did 12 years in school and two years in college... Hope success for you and your family...

[@EmilyJelassi]

Fascinating video! I’ve seen some of the wild bridges, but I had no idea that Scandanavia has so many underwater tunnels. Well done Simon and team 😊👏🏻💯🙌🏻

[@luciusrammer7648]

I lived on Bainbridge for quite some time ,and it's actually amazing how your internal clock becomes a ferry schedule.

[@AquaPenguin100]

whoa wait, of the american tunnels (or even just the virginia tunnels) you're mentioning the hrbt? the chesapeake bay bridge tunnel is definitely the more impressive of the bridge tunnels around here! it's 17.6 miles long and has two tunnel sections!

[@WAL_DC-6B]

I've taken the Chicago Transit Authority (CTA) subway trains underneath the Chicago River countless times.

[@ignitionfrn2223]

1:05 - Chapter 1 - Why tunnels ? 2:15 - Chapter 2 - The chunnel 3:55 - Chapter 3 - Nordic models 9:35 - Chapter 4 - Concrete coasts

[@toasterkolin9951]

Hehe, chunnel.

[@peterwoodhouse3239]

No glass tunnel shown in the notice? Disappointed but still enjoyed. Very interesting.

[@espedeze]

I live about 300m away from the Ryfast tunnel. It's quite the boring drive, however there is a section in the middle where it opens up to a small "cave" with lights that change color every day. Always fun to play "guess which color it is today" with my son.

[@FluffyEmmy1116]

I was on the Chesapeake Bay Bridge-Tunnel once. I still find it interesting that it alternates between bridge and tunnel. Also New Jersey and New York City have a few tunnels, as well as the bridges, connecting us to the city.

[@thebrozone3896]

The Chesapeake bay bridge tunnel bridge tunnel bridge :)

[@wild13hawk]

Detroit hosts a tunnel under the Detroit River, connecting to Windsor, Ontario. Sort of puts it in league with the Chunnel in terms of connecting two countries.

[@lunao17]

Aww I'm disappointed the Hampton Roads Bridge Tunnel (and the two other bridge tunnels in the area) barely got a mention.

[@lawyergrits]

Me, too! I wonder if there's anywhere else in the world where you could potentially be driving underneath a nuclear powered aircraft carrier like you can in the Tidewater Virginia area bridge-tunnels. Driving UNDER nuclear reactors passing overhead! Come on, Simon... Virginia, USA, surely deserves a shout-out for that! 😎

[@bjw4859]

I'm in Brisbane too & the tunnels are just amazing, if you know how to use them, they save so much time & stress, especially in summer or peak hour, which is most of the time. One we take regularly in the northern suburbs, goes under the entire CBD & river & pops out somewhere in the southern suburbs. Another popular one has various inlets & takes you to the national & international airports, if we ever travel again.

[@SephirothRyu]

Simon: "when the car took over the western world." Netherlands: **Angry bike noises**

[@Lcngopher]

The detroit windsor tunnel the second busiest international crossings in the us. It is just behind the ambassador bridge which is also from detroit to windsor. This makes detroit to windsor and vice versa the single busiest international crossing on that border. A large amount of the traffic tends to be commercial trucks as ive seen long lines of them on the bridge when ive driven past it

[@jonnmedds]

How about doing a video on the Stad ship tunnel. Tunnels are great, but this is a tunnel for ships. Amazing 🙂

[@deejax7079]

we have the Ted Williams Tunnel and the blue line (subway) here in Boston, MA, USA!!! blue line has an underwater stop by the aquarium! its all gonna be underwater eventually but yeah lmao

[@PvtSchlock]

Fun as always, idk if a rewatch helps but I'm switching out parts on a bike and didn't catch some of that.

[@SuperVlerik]

Simon: 'fjord' (Norway) is pronounced 'fee-yord'. A ford is a place where a river goes shallow enough to cross easily on horseback or wheels.

[@ZeMarkKrazee]

I have never heard fjord pronounced as ford either haha. I was confused a bit

[@racheladamjuliewhite]

The one closest to me is the Tyne tunnel in Newcastle upon Tyne in the UK, its not only a car tunnel but you can walk and peddle bike through as well

[@AeroGuy07]

My Danish wife is amused by your pronunciation of Danish words. But don't worry, she still laughs at mine, even after 23 years.

[@Lyndiloo]

Oh. I was so excited to possibly hear about the tunnels in my town, built in 1940 and 1973. Turns out "... America also has some tunnels, but who cares?" 😂

[@kitefan1]

Which ones? I did survive Boston's Big Dig.

[@Lyndiloo]

@@kitefan1 The Wallace Tunnel and the Bankhead Tunnel under Mobile River.

[@kitefan1]

Neat. @@Lyndiloo

[@Lemonz1989]

Oh cool! I'm from the Faroe Islands, but live in mainland Denmark now. I went through the recently opened Eysturoyartunnilin (the one with the roundabout) this summer when visiting family. :) Believe it or not, the tunnels are actually cheaper to build and maintain, than it's to build and maintain ships to transport cars and people between the islands. This is because the entire area is comprised of volcanic basalt, which is just the right hardness and consistency to build tunnels through. Like the Goldielocks material for tunnel building. This compared to the rough seas that require large ships that also frequently get damaged in storms, making maintance costs expensive. There are currently 3 undersea tunnels and they are working towards a total of 5. The 4th will open in 2023 and the 5th will open around 2030. The last picture, however, only showed Skúvoy island, which is only proposed (but not yet confirmed) to be a detour on the way to Suðuroy (the southern most island), so they get to connect two islands with one tunnel. This tunnel will be around 26 km long. The Faroe Islands have been building tunnels since the 1960's, and have a total of 22 tunnels, 19 of which are through mountains, and 3 under the sea. That's a lot of tunnels for a country of only 50k people, lol.

[@johnbarak2173]

Hi Simon. Love your videos - great brain food!! Don't forget that there are small under water tunnels in the south Pacific: Sydney harbor tunnel for starters. Nowhere near as grand or impressive as the Norway collection, but still a tunnel!! Keep up the great work!! Cheers.

[@ahmetbakisenayl3950]

You did not mentioned the Avrasya Tunnel in Istanbul but still used the video footage of it at 1:43 ☺️

[@alanrogers7090]

What's the intro music for the episode section, "The Chunnel"? You left out the Chesapeake Bay Bridge-Tunnel which is approx. 27 miles long.

[@xuser48]

Speaking of tunnels. The world's most powerful locomotive was designed to be able to pull a train from a standstill at the bottom of the Great Belt Tunnel in Denmark. The locomotive is called Litra EG.

[@ballistics343]

Great video as always but I am laughing about Hampton Roads making an international super tunnel list and the Chesapeake Bay Bridge-Tunnel being a no show 🤣

[@KeithFitzmaurice]

love this channel keep up the good work

[@Allan_aka_RocKITEman]

The Hampton Roads area of Virginia {in the USA} has multiple bridge tunnels: The _"Hampton Roads Bridge Tunnel"_ and the _"Monitor Merrimac Bridge Tunnel."_ There is also the nearby _"Chesapeake Bay Bridge Tunnel."_

[@mikezq8ss]

First time I've ever seen "no views" on a Simon video!

[@viking_nor]

Good to know

[@smax659]

An 33mins later it's got 2.1k views great job simon

[@martythemartian_]

1 hour later its at 3.5k views

[@syleenaswearingen5598]

1 hr later, 5000 views lol

[@victoriaeads6126]

The Chesapeake Bay Bridge tunnel! Is that what he meant about 'Hampton Roads?'

[@joemirabello1141]

That’s my guess. That thing is endless…

[@Dang3rMouSe]

We have several by me on the US east coast because there are several major ports nearby. Always freaked me out going through them

[@davidlloyd3116]

I was working as a microbiologist intern at a hospital laboratory in Ashford, Kent during the construction of the Channel Tunnel. The laboratory received a fox's head from the French tunnel, and we tested its brain for rabies. Fortunately, a negative test but was a concern when the two tunnels got connected.

[@pegasusted2504]

I was really looking forward to see the tunnel from the thumnail. :~( Interesting as always though Mr Whistler.

[@kathrynreinitz6619]

I love it! Galloping Gertie = Narrows Brridge!

[@wterlep]

"A tunnel that runs under the ground, under the water, allowing those afraid of the water to breathe easy knowing that opposed to having the ocean sit ominously beneath you, it's instead all just over your head." Because that's not as terrifying either...

[@stephanweinberger]

Another important factor for choosing a tunnel over a bridge is weather. Especially in places like the Faroe Islands, where storms could often disrupt traffic on a bridge. btw. for Europe you forgot the Marmaray Tunnel in Istanbul, which connects Europe and Asia by rail underneath the Bosporus strait.

[@rjd-kh8et]

Are there any see-through car or train tunnels, like in the thumbnail? I know it'd be expensive and hard to make it out of glass or acrylic, but I'd expect some place to try it just for the publicity and tourism.

[@roweng.4245]

The Hvalfjörður Tunnel in Iceland goes under the fjord of the same name. Per Wikipedia, "It is 5,770 meters (18,930 ft) long and reaches a depth of 165 meters (541 ft) below sea level." Considering how seismically active Iceland is, I was a bit nervous.

[@kitefan1]

Seismic activity is always what worries my about tunnels. Since you spelled that name, maybe you can tell me how to say fjord? Coming from the US I would call it "fee-yore-d" Simon pronounces it the way I do a waded shallow river crossing or that Ford auto.

[@reneschneiderAustralia]

Hey Simon, what about Australia, Sydney has a harbour tunnel and we are have now a metro tunnel under the harbour and budling another metro under the harbour

[@jamesmcbeth2423]

My grandad had the job directly opposite of this video, he was what was known as a "drawer" short for "withdrawer" in a deep coal mine, his job was to deliberately collapse worked out tunnels, by chopping down the wooden props used back then. His cousin was trapped for a while from the waist down, and needed to be dug out by mines rescue, doing this job and while on the team led by my grandad.

[@jeroenmeester9528]

Because of the age the Maas Tunnel would have been a good entry, it was opened in 1942, and therefore opened during WWII and by far the oldest big underwater tunnel.

[@titlingur2009]

I knew that he was going to mention our roundabout on my lovely islands. We have four undersea tunnels and we are 53.000 people. We are currently planning undersea tunnel nr.5, the longest of the tunnels

[@timsiemssen1148]

thank you very much for the knowledge and the laughs.

[@kevinmcdowell9074]

No mention of the United States Delmarva peninsula bridge-tunnel ? It connects the states of Delaware, Maryland, and Virginia, (hence the name DelMarVa) with a combo of 2 bridge stretches and 2 tunnel stretches, along with an island / rest stop in the middle. It was first built back in the 60's and for being something like 20 miles long, was way ahead of its time.

[@TheEvilCommenter]

Good video 👍

[@matthawkins3584]

Imagine being in one of those tunnels when a massive solar flare hits and an EMP takes out all electronics. Mildly terrifying.

[@allanborch5778]

You missed the tunnel below the Great belt Bridge in Denmark, Cars go over the bridge, but trains go in a submersed tunnel below

[@paulnolan4971]

So many Fords Simon. I'm sure there are some Volvos too, Sweden is next door.

[@templarw20]

Look, I get nervous when I'm in a particular train tunnel under the water. But that's because it's the BART tunnel under San Francisco Bay, and I remember when a quake caused sections of the Bay Bridge to drop onto the lower deck. I'll leave the underwater tunnels to places with slightly more stable tectonics.

[@nugboy420]

Lol that intro. “(Very loosely quoted…) If ur afraid of the water by boat or bridge, try tunnels where there’s water on all sides”

[@dananichols349]

I'll get excited about undersea tunnels for travel when a tunnel is finally built between the U.S. mainland and the HI islands. It could be open for auto traffic and trains. With stops along the way for stores, hotels, etc. We have the technology!!

[@KevinHarrington1979]

What about the BART tunnel connecting San Francisco and Oakland commuter trains under the San Francisco Bay?

[@handyandy8184]

Surprised that you didn't mention the Holland and Lincoln tunnels in and out of Manhattan

[@bloodboy9876]

What about the US's Chesapeake Bay Bridge Tunnel

[@KariHaruka]

By 2030, you'll be able to travel from Tokyo to the northern city of Sapporo by shinkansen (bullet train) in 5 hours, via the Seikan Tunnel. The ongoing extension of the line between Hakodate and Sapporo is a mega project in itself. As 76% of the 211.3 km extension (Between Hakodate and Sapporo) will be tunnels! I am looking forward to this extension opening. As the current time for getting from Tokyo - Sapporo, via train, is roughly 8 hours...

[@fredflintstoner596]

Mrs Richards: "I paid for a room with a view !" Basil: (pointing to the lovely view) "That is Torquay, Madam ." Mrs Richards: "It's not good enough!" Basil: "May I ask what you were expecting to see out of a Torquay hotel bedroom window? Sydney Opera House, perhaps? the Hanging Gardens of Babylon? Herds of wildebeest sweeping majestically past?..." Mrs Richards: "Don't be silly! I expect to be able to see the sea!" Basil: "You can see the sea, it's over there between the land and the sky." Mrs Richards: "I'm not satisfied. But I shall stay. But I expect a reduction." Basil: "Why?! Because Krakatoa's not erupting at the moment ?"

[@daviddevlogger]

Man.. Whoever sees this, I know life May be hard sometimes but I wish you nothing but the best!!.. Good things and happiness are soon to come. Amen❤️❤️

[@artistwithouttalent]

4:35 I figure that would've happened when somebody listened to Yes on the Eurostar.

[@KPX-nl4nt]

An undersea suspension tunnel? Sounds like nightmare fuel to me.

[@OmniAxisZero]

Omg! If you only knew about the city planning in Seattle/Tacoma. That tunnel if started today. My grand kids might see it open. 😆

[@dwashbur]

No mention of the BART tunnel under San Francisco Bay?

[@gmoney4980]

Hell, if there was an underwater roundabout here in Clearwater FL, that tunnel would be closed 8 months out of the year from accidents.

[@patodonnell3328]

Forgot the Detroit-Windsor tunnel. The only sub aqueous international automobile border crossing. Opened November 3rd 1930.

[@allisonbergh4429]

I’m from Puyallup, Washington, a few miles from Tacoma, and from experience I know that avoiding crossing the Narrows bridge adds a lot more than an hour to any trip to the peninsula. We do have a much nicer bridge now though - two, actually - and the remains of the old one provide excellent habitat for the giant pacific octopus 😁

[@StfuFFS]

As a resident of Kitsap, I been teaching people how to pronounce Puyallup. I make sure everyone knows it is pronounced Poo-wallow. You're welcome. 😉

[@allisonbergh4429]

@@StfuFFS Gee, thanks 😑 😂 In return I’ll be sure to clarify how people should pronounce Sequim - like sequin, obvs - then we’ll be even 😆

[@barriepotter3753]

Apparently it was cheaper to build the Chunnel than to develop the famous Track ‘n Trace spreadsheet

[@jjlpinct]

Your studio looks like an undersea roundabout

[@airgunningyup]

the holland tunnel is another impressive one , built in the 1920s

[@rodshellfautenberry8871]

Seattle to Bainbridge Tunnel?? You're high and here's why: 1. Puget Sound was dug out by massive glaciers. The span between Seattle and Vashon Island is as deep as it is wide. Commencement Bay in Tacoma is the deepest natural saltwater port in the world. It's deep and it's all natural gravel and silt on the floor. 2. A small tectonic plate is spinning under the Sound due to subduction.

[@efimviriato4523]

You rushed one of the engineering marvels of the century. China’s bridge connects Zhuhai to Hong Kong. Most of European engineers said it was an impossible project, and many even said it was ridiculous. The bridge is massive, Chinese built various fake islands to serve as support for the both over-water part and under-water part. I have lived in China, Zhuhai, and I have followed the construction from the beginning. It’s truly an amazing structure. And yet you have barely gave any info or even a proper picture of the bridge. The British channnel and the Chinese-hong kong bridge are for sure the most impressive ones.

[@Kuypers125]

This is SideProjects Not Megaprojects And a list video Not an in-depth one

[@efimviriato4523]

@@Kuypers125 so what is the point of the video? The title says the most incredible tunnels, then spends most of the video talking about northern tunnels and 8 seconds about the real incredible tunnels. And didn’t even showed the accurate photo of 2 tunnels.

[@efimviriato4523]

@@Kuypers125 don’t get me wrong, I love this channel, and I usually don’t comment. But I did this time. It’s a constructive comment, not a destructive one

[@Kuypers125]

@@efimviriato4523 Get off your selfritious high horse You are literally throwing a bitchfit over the fact a Chanel you don't control didn't dedicate an entire LIST video to a SINGLE project you just happen to a hard-on over That doesn't even qualify as criticism Let alone a constructive form of it Try this: If you want Simon to do an entire video on a single project he mentioned in a list video - that he hasn't already done videos on Instead of acting like he made a catastrophic mistake by daring to include other projects in that same list Just leave a respectful comment asking him to make that video Failing that Unsubscribe from this channel entirely, since it's mostly list videos Which clearly cause you physical pain just by existing And stick to MegaProjects So those of us who actually enjoy the content on THIS channel don't have to deal with your shit

[@DeaDGoD_XIV]

Two Washington State references in the opening of the video, awesome!

[@disgruntledmarmotcustomsan1530]

You could see the Tacoma Narrows Bridge, the new one 😂, from my parents house on 6th Avenue in Tacoma. Couldn't see it from the window you had to get on the roof. But you could see it😊

[@loupiscanis9449]

Thank you . 🐺

[@abnurtharn2927]

There is a joke here in Norway about a American who wanted to see the country. but he was a bit disappointed because he mostly got to see the inside of the country.

[@fredashay]

If the fjords are too deep for tunnels, why not the fjhevys or the fjrychlers?

[@chouseification]

/rimshot... /snicker :D

[@david2727]

Yeah I think I would rather have it above my mind thanks.

[@frankhooper7871]

I found Simon's pronunciation of "fjord" indistinguishable from "ford" - as did the auto-generated captions. Weird.

[@GoodVideos4]

No tunnel like the one in the thumbnail. I wonder if those are even possible.

[@usonumabeach300]

There's a section of I-10 in Mobile, Alabama that goes under the bay, but it's not even a mile I believe.

[@GoodVideos4]

There's another tunnel connecting Hong Kong Island with Kowloon. Each time someone uses it, like in a bus, must pay an extra HK$10 (when I was there in 1996).

[@aaronmeadows1667]

What about the tunnels between the US and Canada (Michigan to Ontario)? One was built in 1891 for rail and then a car tunnel was built in 1930.

[@robbieshock5004]

Hampton roads tunnel hell yeah!!!!

[@steveb6103]

Tunnels in earthquake zones is a bit unnerving!

[@rob1129]

The Detroit - Windsor Tunnel under the Detroit River has been open since 1930

[@jwalster9412]

A glass tunnel through an ocean sounds like a great plot for an ocean based horrer movie, or jurassic park.

[@auntieescreations4309]

I'm surprised you mentioned Boston's sewerage tunnel, and not The Big Dog. That project was so fucked up I could see it getting its own entire video

[@paulceglinski3087]

What a boon! Factboi 6 times today! One of the best places on KZbin are Simon's channels. Allegedly.

[@MindBodySoulOk]

Fascinating eggskull

[@austingirdner92]

I'm pretty sure you said Seattle and ireland, which are on different oceans..

[@austingirdner92]

Bainbridge Island, not Bainbridge Ireland 🤣🤣 I'm silly.

[@Martino2156]

Michigan USA has three tunnels which connect to Canada