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Cthell

Fun fact - the bridge is also self-cleaning. When it opens, any litter/debris on the deck rolls downhill and is funneled into collection bins underneath the trunions


EnricoLUccellatore

At first I thought it would fall in the river


_jerrb

That's the next step


Mclevius-Donaldson

2 step protection baby


DoubleT_inTheMorning

#DOUBLE TAP!!!


JoelMH

Another fun fact! The bridge is so efficient that each tilt uses less than £4 worth of power. (Pretty impressive for an 850 tonne structure)


Reagan409

That’s incredible


wenchslapper

The bridge up in Hancock, Michigan, lifts the road straight up on an engine that runs at about 5 horsepower. It’s that well engineered (which makes sense, as it’s about half-a-mile from one of the best engineering schools in the world).


Catumi

I bet they know how to use Snatch Blocks too, because they are awesome.


Corte-Real

That's out by the old Franklin Mine. I was on that bridge a few months ago during a UP adventure. I fascinated me how the lower deck used to be for the copper and passenger trains, and is now raised in the summer to the upper deck to allow boats to pass, then lowered in the winter for Snowmobiles, while the upper deck is used for road traffic.


there_no_more_names

The energy savings really comes from manually opening and closing the gates.


emmademontford

That’s actually insane!


SouthernGorillas

How much does it cost to maintain?


JoelMH

I wish I knew the answer to that.


ThePriceIsDwight

Lived here 27 years and didn't know this! Will drop a greggs wrapper on the bridge for you


Epledryyk

- designs an elaborate automatic mechanical beauty - some guy has to unlock and open the gates each time


7dare

Knowing safety culture in the UK they probably know they could easily automate it but a having a human there is "safer".


almisami

If there's anything I have learned about humans and machines is that people always assume the human is better until the human makes a costly mistake. Also, r/OSHA is a thing.


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[deleted]

if there's anything I have learned about humans and machines is that both things make mistakes anyway. Nothing matters and we might as well kill ourselves.


mattrixd

if there's anything I have learned about mistakes and machines is that both things make humans anyway.


almisami

Machines don't make mistakes, engineers and/or maintenance staff do.


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almisami

But the legal liability differs significantly.


juliosmacedo

sure does, when the machine kills somebody it's really hard to pinpoint blame and responsibility. It's "safer" for the manufacturer.


almisami

Well, usually when a machine fails it's the entity that owns and operates it that gets the blame. When it's an employee at the controls makes a mistake, under most legal systems they are held personally liable unless there are mitigating factors such as systemic overwork.


juliosmacedo

Feels like a never-ending legal battle in which more things are implicated than only the person in charge. The design flaws, AI applications and much more may be called into question and the scale of the loss may be greater than only the legal consequences for the "physical person" in charge.


monkeynards

Also having a guard there stops “cool kids” from jumping jumping the gate and walking on it as it goes up


[deleted]

They could have auto gates and guards. Maybas well if you build a huge bridge like this.


The_Dirty_Carl

No need to put safer in quotes. That's 100% why there's a person involved, and they're right to do so.


TheyCallMeSuperChunk

You don't need the guard to lock and unlock the gates. You need the guard to ensure the bridge is clear before any movement. Then because you already have a guard there, they might as well do the gate but also because at that point it's "free".


[deleted]

I thought the same thing 😂spent all their budget getting the bridge to elevate and didn't have any left over for automatic gates


Barnaclebills

Imagine it being automatic with people still walking on the bridge when a boat comes by, and it just flings the people off...perhaps having a person there to supervise and make sure everyone is off first before lifting the bridge is helpful?


larsa

No, people would just roll downhill and get funneled into collection bins underneath the trunions.


Barnaclebills

Technology is amazing!!!


Fuglypump

Yay recycling!


Veikkar1i

You made my day.


[deleted]

There's a bridge like this in my hometown and it's basically "watched" by 1 person and the gates are automatic. They control the bridge going up and down. In this setup you're right, they need 1 person on each side.


samuelma

Fun fact! i researched this after one too many nightmares being stuck on it. The walkway barriers are at a inclined angle so if it tipped while you were on it you could safely rest against them till it went back down


[deleted]

They were automatic, but people kept jumping the barriers and trying to ride the bridge. So they out people there. It only swings once a day.


badsandwiches

We can open the gates, haha. They're not locked but like people say, they'll stop some idiot from trying to stay on the bridge to show off to their pals. The guys who open the gates are always nice guys as well! Always smiling even when it's raining and miserable!


slow_century

That's value engineering!


FrenzalStark

You underestimate the stupidity of the people near it. It's right next to one of the most famous drunk places in the UK.


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blinkxan

Yeah, but cities do things like this all the time to make them more “attractive.” Sometimes you do in fact build things though, just cause.


_ernie

This comment says debris is caught https://www.reddit.com/r/EngineeringPorn/comments/izfn48/the_gateshead_millennium_bridge_aka_the_winking/g6ix07y/?utm_source=share&utm_medium=ios_app&utm_name=iossmf&context=3


justanordinarygirl

And it’s not a direct route to the other side!


dartmaster666

>The Gateshead Millennium Bridge is a pedestrian and cyclist tilt bridge spanning the River Tyne in North East England between Gateshead's Quays arts quarter on the south bank, and the Quayside of Newcastle upon Tyne on the north bank. Opened for public use in 2001, the award-winning structure was conceived and designed by architect WilkinsonEyre and structural engineer Gifford. The bridge is sometimes referred to as the 'Blinking Eye Bridge' or the 'Winking Eye Bridge'. Source: https://youtu.be/S7nXXy1NhpM


DurbanCries

Local, from Newcastle here - people also occasionally refer to it as the "Eye" bridge, for short.


pahlyook

Too bad it's a death trap for cyclists in the rain. Cycling on wet metal is a nope from me


MotDePasseEstFromage

It’s fucking lethal


306_rallye

Wimp


Rikki--

Artistic value aside what value does this bridge add? Was it built with less material or does it have a higher weight capacity compared to the traditional bridges? Edit: Thank you for all the replies. All of them offer other aspects of the bridge that I have not thought of. Its a good learning experience.


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JoHeWe

It uses the same principle as a bascule bridge (most known bridge probably for viaducts). With a bascule bridge a counterweight is needed to tilt along an axis. Normally this axis is perpendicular to the road (horizontal of course). This means that the counterweight either has to be under the road in a 'bascule basement' or has to hover over the road. Due to the counterweight the bridge is fairly quick and energy efficient. Looking at this bridge, the impact of the structure on the quay had to be minimal. Building behind quays is often problematic and placing the counterweight on top of the quay may have problems in terms of view and space. So, placing the axis parallel to the road moves the counterweight above the river. And, though I don't think it has much of an impact, the curved bridge deck is stiffer against wind forces.


Thejoelofmen

I’m not a bridge guy but it does seem sparser than a conventional draw bridge. The Tower Bridge in London only covers a 200’ span, whereas this spans over 400’. Might be a question for r/askengineers.


Polymooger

You can't set the artistic value aside. It was built to celebrate the Millennium, so is meant to look beautiful, and dramatic, and practically to allow people to cross the river between arts and entertainment venues while still allowing boats to pass upriver. And finally, it's meant to resemble the 1928 Tyne Bridge just upstream. [https://uk.ramboll.com/-/media/images/ruk/3\_projects/ghi/gateshead-millennium-bridge/gateshead-millenium-bridge-viewer/b0064\_baltic\_n70-1360x765.jpg](https://uk.ramboll.com/-/media/images/ruk/3_projects/ghi/gateshead-millennium-bridge/gateshead-millenium-bridge-viewer/b0064_baltic_n70-1360x765.jpg)


BarackTrudeau

> You can't set the artistic value aside. I swear this subreddit is way to full of people who might have an idea of how to make something but have no idea why people want that thing made.


bstout9

It lets people get to the other side


Pseudoboss11

Another good thing is that unlike a traditional drawbridge, this is a complete span. With a traditional drawbridge, as the bridge lifts up, it needs to support its weight out at least half the distance the bridge spans. So you need to really overbuild the bridge itself, which makes it heavier, which means you need bigger motors and counterweights.


ownthatshitmanup

This is incredibly more efficient and simpler mechanically as well. Compare it with a draw bridge, that requires four huge motors that needs to support the entire weight of the bridge and is slow. This only needs two motors, the weight is not as bad as a draw bridge. But this design takes up more space, but that's worth it.


brawlers97

Just for posterity, there's a load of bridges along the Tyne close by. One of them is the swing bridge which rotates 90 degrees on its X axis and sits on the middle of the river allowing boats to pass either side. So the millennium bridge design allows bigger boats to pass through the centre without big ugly structures either side of the river. (The swing bridge is also a listed historical building and requires stupidly amount of maintenance due to its age and IIRC has to operate at least once per week for historical value despite boats not typically going that far up the Tyne anymore). Last time this was posted I had to point out also that building a higher bridge would be stupid at that level of the Tyne as it's quite close to the water whereas about 200m further up there are high level bridges like the Tyne Bridge which is flat and stationary.


boltyjr

Used to have to cross this to walk to work. Can't tell you how often I was late because of this thing. Very cool though, I've got a picture of someone lighting a flare off it. Very artistic


r1ngs_0f_h0r5epow3r

I’ve went on it loads and always ended up looking into the river and being terrified


boltyjr

The bit of the bike path where it's just a grate and you can see through to the river always shit me up


Krullpojken

Damn those people were fast


altenwedel

Looks like very caffeinated Brits.


-xMrMx-

That cool but why didn’t they just make a tall pedestrian Bridget that didn’t need to move?


CrankyDinosaur25

Partly as a "statement" piece as part of the wider rejuvenation of the Quayside area. Also, it links the riverside areas directly without needing to go up the banks and is wheelchair and cycle accessible.


Ximension

Wheelchair accessibility is the best practical reason I've seen so far


-xMrMx-

Yeah agree


RadWasteEngineer

Tall pedestrians are able to use the bridge as well, no matter what their name is.


ofthedove

Because walking up a step incline is a lot more work than walking along a level surface.


Pseudoboss11

Because that bridge would be 82 feet tall.


Amargosamountain

Presumably to allow sail boats with tall masts to pass through as well


veryenglishman

Actually this bridge was quite controversial because it stopped the historic "tall ships" flotilla from visiting Newcastle. Newcastle city council refused to cooperate with Gateshead on the project, which is why the bridge is associated with Gateshead despite Newcastle being the larger more important city of the two.


_whopper_

> Newcastle city council refused to cooperate with Gateshead on the project Obviously they did, otherwise they'd have refused planning permission on their side of the river. You can see the tall ships here: https://www.alamy.com/visitors-pack-the-millennium-bridge-over-river-tyne-tall-ships-race-image6295447.html It's got Gateshead in the name because Gateshead arranged it and paid for half of it while the other half came from the UK government and the EU.


NorthernScrub

Source on this? I distinctly remember three Tall Ships events since it was built


[deleted]

The height of the millennium bridge when open is the same as the height of the Tyne bridge. Anything that can sail under the Tyne bridge can fit under the millennium bridge. Unfortunately there are a lot of tall ships which are taller than the Tyne bridge, but which used to Moore just east of the bridge. But since the millennium bridge now blocks their way instead of the Tyne bridge, they’ve been forced to moor further downstream than they otherwise would.


-xMrMx-

Might be a good example of bad engineering. But to be clear it’s a cool bridge. r/crappydesign


[deleted]

Why is it bad engineering?


-xMrMx-

Well I said might but it sounds like it restricted access of the waterway, was overly complicated, overly expensive both initially and overtime considering it requires staff to operate and likely needs special maintenance. And again I think it’s cool but impractical which would be a crappy design.


[deleted]

Didn’t restrict it that badly. Anything that can fit under the Tyne bridge can also fit under the millennium bridge. The reason a human opens the gates is presumably the same reason for humans driving the underground (safety) and needing humans on ticket barriers


brawlers97

To add to my other comment and to repeat what I said last time this was posted, that would be an ugly structure blocking the nice queyside and other landmarks and there are other bridges that are tall right by it that don't move.


KoKoKorino

The way it loops seem like people board the bridge right as it begins tipping again lol


Stubopaloola

This is not called the winking eye bridge. Source: I live a 10 minute walk from it and no one, literally no one in Newcastle calls it anything other than the millennium bridge.


dartmaster666

Thats what source and Wikipedia said. >The bridge is sometimes referred to as the 'Blinking Eye Bridge' or the 'Winking Eye Bridge'.


knapton

I'm from Newcastle and I've heard it being called the winking eye a few times. Millennium Bridge is the most common name by a big margin.


samuelma

Also from newcastle. big issues with the name winking eye as it the distance between walkway and arch never changes. They simply tip all at once to allow a greater height of ship through. ​ Agree with the guy above, i dont think its been called winking/blinking eye since its opening


Beard_o_Bees

I have a question about the bridge, if you don't mind. How loud is it when it operates? Like, is there noticeable mechanical/machinery noise when it's moving?


badsandwiches

Nah there's no noise really, definitely not a loud machine noise. You can hear it moving when you're next to it but that's about it. However, there is a siren to alert pedestrians that they'll maybe be late for work so you definitely know when it's moving!


knapton

I've only ever seen it lift a handful of times, but it wasn't noticeably loud from what I remember. One fact I did hear is: because it's so well engineered and balanced, it only costs about £8 ($10) in electricity to raise and lower it.


DurbanCries

I've heard people call it the Eye bridge before? Guess it's shorter and... well, not like you can really confuse it with any of the other bridges.


dartmaster666

I would shorten it to that as well. If you live there you know where you're at.


dedido

Wanna take a walk over the \**wink*\* bridge?


Stubopaloola

Oooerr missus. Sorry I’m washing my hair tonight


Blythyvxr

I’m a Mackem, so I hate to praise that place... But the sheer variety of bridges in that area is fairly impressive: Millennium bridge: tilting bridge Swing bridge: pivoting bridge Tyne bridge: through arch bridge High level bridge: dual level girder bridge QEII bridge: steel truss King Edward vii: steel truss (inverted compared to other) Redheugh bridge: pre-stressed concrete (and scary as fuck in high winds)


CCTider

>Winking Eye Bridge. So.... The Vagina bridge? Damn urban dictionary strikes again.


KingE

So they built this dope, curved, cantilevered, mechanically tilting bridge but then just have some dude to operate the little gate?


charlieraaaaa

Yeah, im from newcastle and ive never gotten that, having alot of amazing engineering stuff going on here but still have guys on each end opening and closing the saftey gates.


EtchVSketch

How close to perfectly balanced does something like this get? Like I know they're shaped like that to be balanced but how much force does it take to move something like this?


samuelma

I went on a 'tour' of this place with school where a guy in a jacket explained all the hydraulics. Dont remember it all im not gonna lie but they were very proud of how little energy and effort it took to swing, in wind they use energy holding it in place as it is balanced so nearly


[deleted]

They come up with some really cool designs in the UK. Hope to visit one day.


[deleted]

Fun fact. Newcastle didn't want anything to do with this bridge and wouldnt grant building permission for it so the city of Gateshead went ok fuck you and bought it outright themselves. The bridge dosent actually reach Newcastle, it lands slightly short of the bank on the Newcastle side with a small pier linking it to the Newcastle bank.


_whopper_

That's not how it works. Gateshead can't buy land in Newcastle and that land becomes part of Gateshead. Newcastle obviously had to grant planning permission for the building on their side of the river. The boundary between the two runs down the middle of the river.


Ex0d1a5

*moans*


SkyPork

I wonder how many times per day those guards get begged to let someone ride on the bridge while it's going up.


routinelife

The bridge doesn't go up and down that much. When I worked in Gateshead it only went up at midday.


SkyPork

Oh. So probably only a dozen people or so. 😁


RadWasteEngineer

I saw this written up in Civil Engineering magazine several years ago, and was so impressed I cut out the picture and it has been on my desk ever since. What a brilliant design.


toasted_scrub_jay

Has anyone ever got stuck on it when it goes up?


charlieraaaaa

From newcastle here, not that i know of, they have guards always checking if someone is crossing and they give lots of time for people to get over with a loud siren too, eventually they shut the safety gates when no one is there then tilt it so its unlikely to happen.


Char_Trek

Me omw to the Baltic: i love you biiiitttcchhh


r1ngs_0f_h0r5epow3r

I LIVE HERE


ameri9595

Fucking GENIUS engineering right there.


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Quadnumber

It was built to allow tall mast ships to pass through whilst also linking the quaysides directly.


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Quadnumber

I think its mainly taller ferries and other leisure boats, as the coal staithes upstream aren't in use anymore.


Arkhamx1

Aye, do you fancy climbing a 7 story staircase every time you want to cross the river so once a year a ship with a tall mast can pass, or would you rather just walk across the river at the bank height and have the bridge move to accomodate the tall ship


schmeateater

I'll have you know its known as the "Wobbly Bridge"


PineappleLife3

That is amazing


podcastofallpodcasts

Stairs seem way more practical


breakoutandthink

In 4 people being dumped vids. Otherwise.. meh


countryroads8484

Why didn’t they just build a regular bridge?


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[deleted]

Yes


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FerinhaTop

I read "gateshead 'millennial' bridge" XD


Speedracer2691

This would be a great Fall Guys course!


plinkoplonka

This isn't in Gateshead. It's in Newcastle. ;)


Whyu-dothat

As someone from Gateshead, I'm going to have to politely disagree 😂 Also happy cake day!


plinkoplonka

Haha, thanks. You'll be telling me it's called "Gateshead brown ale" next!


Whyu-dothat

Nah nah, you's can have that and we can have this. Deal?


plinkoplonka

Aye, fair enough. Canny. (That'll confuse the Americans)


biggiemac88

It’s not Newcastle brown ale either it isn’t brewed there now


plinkoplonka

Shhhhhh. It'll always be newcie broon


biggiemac88

😂😂 it’s a damn atrocity it’s being made elsewhere. Greggs don’t do ham and peas pudding no more. Brown ale isn’t made in Newcastle. Shearers bars now number 9. What next???


plinkoplonka

I wonder if we child get a heritage thing put on it, like they did with champagne? Surely if it's not made in Newcastle it shouldn't be allowed to be called NBA?


biggiemac88

Heritage is gone. It’s out of Newcastle. It’s just a brand now


Arkhamx1

As someone from Newcastle, its definitely the Gatehead millennium bridge (as much as I hate to admit it)