I hope you enjoyed the Vajont dam video. If you like my work, please don't forget to support us on Patreon - www.patreon.com/sabins Regards Sabin Mathew
The current title is correct only for peace time or/and natural disasters. During WW2 (August 1941) soviets destroyed a dam on the Dnieper river in Ukraine that killed between 3'000 and 100'000 civilians. In 1943 it was blown up again by retreating German troops. In 6 June 2023 the Kakhovka Dam (with water volume of 18.19 km3) was breached. It was under Russian control and the Russian occupiers have actively suppressed the counting of the real victims.
It's actually insane how many clear signs they had. They even had all this time to go and build all of these different installments to observe & measure this & yet they ignored it & decided against keeping the water level low..
They needed to do the mandatory 3 tests of filling/emptying of the reservoir to declare the dam tested and working, to sell it to the new public electric society created by Italian government, the ENEL (the SADE was a private society). To do that, they didn't give a damn about the alerts they got from various geologists and from the mountain itself! A 50 years old survivor of this disaster, who lost his whole family (his parents, his wife and 3 sons under-15) wrote on their gravestone (now disappeared after the 2004 riqualification of the disaster gravesite) the following, rightful sentence (here translated from italian):
I am a geotech engineer in Germany, your video is very informative for the public and covers the sequence of events and the responsibilities very well.
@leanneadams2549 If I lived in the US, I wouldn't be an engineer either, because I would have had to take out neckbreaking student loans. In Germany however, I had more money in my account at the end of my studies than at the beginning. No tuition fees...
The attention to detail is insane. I chuckled when I saw those little springs at 4:10, to show us that it was pushed with a significant forward force. Super nice.
There is always someone who warns, and always some powerful people that ignore in name of profit. In Brazil, in the city of Brumadinho, the Vale mining company had an auditor, this auditor said that there was a risk of a mud dam collapse, they fired him and hired another auditing company that said it was safe. 4 months later, the dam collapsed, killing 270 people, putting an entire city under mud, polluting an entire river, and since the responsible people are rich, no one was punished.
My grandfather worked on the construction of Vajont dam. He was an expat from Sardinia and he was a crane operator. I remember some of his stories and proud remembers about his job, i saw also an old picture of w.i.p dam, very impressive!
As an Italian and Vajont researcher, I'll tell you, SADE engineers have their fair amount of guilt in this story: the heads of that electric society, the men who took the decisions which led to the disaster, all of them were engineers, and they got all the authority to do that because Italian government was too weak, corrupted and intimidated by the men and the will of that private society.
@@fabioartoscassone9305 beh si, so bene che gli ingegneri si sono volutamente "privati di ogni ingegno" nel gestire la faccenda. In effetti mi rendi conto di aver sostenuto un'eresia, domani correggerò il commento
I used to live in Nurek, Tajikistan. The 300-meter-high dam there is the tallest embankment dam in the world. My father worked as an engineer, helping to build it. As teenagers, we went on vacation to the Nurek Sea, a reservoir of water collected by a dam. We rested on pontoons not far from the edge of the dam, where we could stay overnight and swim (It is a fantastic feeling when you swim and know that under you is 300 meters of depth) We were told that the dam could withstand the impact of a nuclear bomb, but it was still unsettling to live at the foot of a dam of such height.
And the Chinese army under Chiang intentionally flooded the Yellow River in 1938 as a defensive strategy against the Japanese, killing tens of thousands immediately and leading to 400,000-500,000 deaths in the aftermath.
@@alessiocataldi2434 links were blocked in comments, you can search "banqiao dam", this catastrophe is blocked by China so even most Chinese don't know it...
I'm from Trentino and I live very close to the Vajont dam! I know the story quite well and it is a human tragedy! Also I publish videos on electric engineering:) great job!
Vajont tragedy was the worst we had in Italy and by now no one remember it, just people that live in Longarone, Erto, Casso and nearby. Visiting the dam was devastating for me, I cried and prayed for years for people that died in the catastrophe. I had a teaxher that was born near it, in Belluno, he was 20 when the wave hit, at the time he teached in a primary school near Longarone: the day after the tragedy, he showed up for his class and only half the children were there, all the rest have died. He lost at least 10 friends and a lot of relatives, he was so broken he comsidered suicide, but never did. Instesd, he kept teaching in different cities, including mine, 500 km away. We clicked in three years and then, when I was 22, we met again and stayed in touch: he's 81 now, lives in Belluno and I sometimes travel there to visit him with my husband and daughter. He's amazing but that tragedy hit him so hard he's cynical and sometimes fail to open up properly.. He asks a lot about me and my life, but seems to avoid my worries about him and how he feels, always trying to be gentle but never too close. To me he's so important and I'd like to help, but I know I can't. But if you want to know that tragedy, maybe you can: we have a TV show from 1995/96 called " Vajont by Marco Paolini". Try to find it subbed in english, maybe someone did it. Watch it, for never forgetting what happened here in Italy october 9, 1963. You will laugh and cry, I promise.
I hope people share and support the channel which I believe admirably serves the public, in the process being extremely detailed and diligent. I would encourage teachers to share and promote this material because I believe it is extremely useful for students. I don't think they receive much money for these excellent presentations so perhaps we should help them out.
Casso wasn't destroyed, only their school suffered some damage. Also it's estimated that the blast from the water movement was comparable to twice the power of the Hiroshima nuke. So the town was destroyed first, water just came and washed everything away. Also it wasn't greed but arrogance. They had invested millions in the dam and they discovered the issue months before they started the trials to then sell the dam to the government. If they stopped it all they would've gotten no compensation. The issue was arrogance: they thought they could control nature and the landslide. They thought they could make it come down slowly, with little water, and then just keep using the dam as normal once it was down and safe. Also the critical evidence was the bypass tunnels. They helped prove the company knew of the issue and how grave and big it was, and that they just built around it instead of warning anyone. Also there were warnings but they were mostly from socialist and communist newspapers... And at the time, in the heart of the cold war - 1960s -... Yeah... They were so easy to dismiss for people. Anyway, All in all, pretty well researched!
the title says "deadliest dam tragedy in human history", forgetting that there were a lot of much deadlier dam accidents. foremost among them the 1975 banquiao dam failure, credited to have killed 100000 to 200000 people, at least 50 times more than vajont. not to downplay a tragedy, but let's try to have accurate headlines
It said deadliest, not which caused the most deaths. Just like how current nuclear bombs are deadlier and larger than the ones dropped in ww2, but has little to no casualties.
Well, it was the deadliest at the time. Anyway maybe he said that because it involved only the dam, as opposed to banquiao that caused multiple dam colapses and had the majority of the death toll by indirect? means (Famine and the poor response to the tragedy). But yes, a lot more people died there.
Vajont dam failure, although catastrophic, is far from being the deadliest dam tragedy in human history with 1917 fatalities. Just last year, extreme rainfall caused the Derna dam in Lybia to fail, killing 6000 people at the minimum with some estimates being upwards of 20 000. The Banqiao dam collapse in China after a typhoon in 1977 is believed to have caused up to 200 000 deaths. In 1938, the deliberate breaching of dam-like leevees and dikes that contained the yellow river above the surrounding terrain by the Kuomintang in a scorched earth campaign caused over 500 000 deaths, 80 000 by direct drowning and the rest from the following famine
Interesting, I wasn't familiar with this disaster before. Some notes however: I was uncertain where this occured throughout the video. Mentioning that this was northern Italy early on would be nice imo. Also I'm fairly certain there was a dam failure in china with tens of thousands of casualties which would contradict the title.
A 50 years old survivor of this disaster, who lost his whole family (his parents, his wife and 3 sons under-15) wrote on their gravestone (now disappeared after the 2004 riqualification of the disaster gravesite) the following, rightful sentence (here translated from italian):
Super interesting, I didn't even know about this event. On your last point, it's not in your business interest to lose money or ruin your brand reputation (i.e. lose future money). It's that business leaders or politicians make mistakes, likely blinded by quick money or poll gains.
1975 Bianqiao Dam Failure in China is the deadliest dam failure in history. Official death count is 26,000 people. About 140,000 to 200,000 people died in the sequent starvation and epidemics caused by the floodings.
A very good documentary about a disaster caused by greed and human stupidity, literally a mass homicide, and nobody paid for this, except one of the main culprits who served just 1 year in jail. There's just one mistake: 9:28 Wrong, the village of Casso got barely touched by the main wave, because it was 200 meters higher than the dam, on a rock upland that repulsed the wave. The village is still there, more or less as it was in 1963. The main village of Erto also survived as you said, but some of its districts (small groups of houses scattered throughout the valley) got partially or totally wiped out. Their names are: Frasein, Le Spesse, Patata, Cristo, San Martino
Nothing. Just a trial which took place between 1968 and 1971 in the city of L'Aquila (just look how much is far from Longarone...). But some of the culprits got aquitted from charges, others died before the end of the trial... only the chief of the dam operations in 1962-63 served a jail penalty... ONLY 1 YEAR, BARELY 12 HOURS FOR EACH OF THE (official) 1917 VICTIMS
We had something similar in peru... would be cool to have a video about it just by sheer numbers... it was an earthquake induced "avalance" that fell into a lake and exactly like this case, it pushed everything downstream. The diference is that it was a mudslide and the speeds were not 90km/h... were 450+... with debrie/rocks launched reaching over 1000kmh. The biggest one landed in the town of Ranrahirca, weighted 14000 tons. Yungay and Ranrahirca were the 2 towns hit, yungay being the most famous with 15000 casualties. Ranrahirca was buried in a way that it couldnt be found 20-30m of mud on top of it... Again, one of those situations that autorities were warned about it and did nothing... not that they could cause this was not a dam or something like that, its 100% natural landslide into a lake but, we were warned about the towns in that valley, it was known that thousands of years ago, monumental landslides had falled through the valley and literally changed the topography...
Around the landslide and dam, it reconnects with the valley just after the dam. Actually the deviation starts from the remainder of the lake with which they planned to continue energy production if a landslide would have happened
Can't imagine the sight of a 170 m high tsunami when you live in the mountain must have felt like Armageddon. They were literally so meticulous and yet they played with peoples lives
Sounds to me like the clay layer whicked up the water, when the lake level reached it. When clay gets wet it becomes one of the most slippery substances I can think of, when it's dry it's like cement. Also the land that moved also wicked up water from the lake, much more so than it usually did from rain. When it wicked up this water it got heavier and the water in it wanted to join the water in the lake.
it makes me wonder why they didn't build a water break farther down the valley. if there was something to slow the size of the wave, would it have been less catastrophic
This fits the Hawk Standard Disaster Formula found in the book, "One Excellent Place, Design And Creation... by Hawk Another example of wisdom clearly known but not followed.
Their little experiment with the water level seems like they tried to play with the patch of land that was moving. And they thought they managed to make it settle then raised the level again at 235m like the problem was solved.
Nope, it just shows how certain I-know-everything people (SADE's engineers and some of their geologists) can become so stupid when facing money and "fame". Longarone and Erto/Casso's people could've live their normal lives peacefully if it wasn't for other people which gambled with their lives, believing they could've bend nature's forces to their will
There's an error you should correct. The village of Casso was NOT destroyed but only seriously damaged because even if it was located near the dam it was much much higher than Erto. The fractions of Erto located near the shores of the lake were wiped off the face of the earth by a passing 30 meter wave. The real tragedy and destruction occourred in the valley below.
The landslide plate was 245 meters below the surface, this is why the geologist didn't find it and went ahead with the project. Core drillings went until 200m and they fond only rocks ruling the mountain safe.
The dam is useless today. The reservoir is filled with the mountain that. So the reservoir was never filled again, because its full of rocks. The dam is still standing however and its used as tourists attraction of those wanting to see the site of the disaster. You can basically google the dam's pictures, Its still there but its basically useless today.
this engineering designs failures must be a remainder to us and we as human must being constantly reminds ours self for carefully managing mother earth becouse no human can hold when mother nature get angry for humans hand destroying her.
You know, in all odds they won't. And I don't quite blame them. But they could restore that Dam to functionality, and add modern day safe guards. I hope to see you grow here. I'm tired of the click bait youtubers.
Actually they cannot. The landslide filled the basin until few meters from the top of the dam. Plus mount Tok is still not safe and the same situation could happen again.
You know....there is now a whole mountain inside the reservoir, so removing that would be impossible. So no the dam, will never be used again for its planned purpose.
Expert Brydeen T Fx's success can be attributed to he unwavering dedication to setting realistic goals, expertly navigating clients through complex financial landscapes while avoiding the pitfalls of unrealistic expectations.
Toc literally means ''touched in the head'' - as in ''crazy'' in Lombard language, while Erto means ''steep''. Great choice building a dam right there lol
I hope you enjoyed the Vajont dam video. If you like my work, please don't forget to support us on Patreon - www.patreon.com/sabins Regards Sabin Mathew
The current title is correct only for peace time or/and natural disasters.
During WW2 (August 1941) soviets destroyed a dam on the Dnieper river in Ukraine that killed between 3'000 and 100'000 civilians. In 1943 it was blown up again by retreating German troops.
In 6 June 2023 the Kakhovka Dam (with water volume of 18.19 km3) was breached. It was under Russian control and the Russian occupiers have actively suppressed the counting of the real victims.
Sir please make a video on spacex raptor engines...
Hello sir
The Connections (2021) [short documentary] ❤
Banqaio dam disaster killed way more people than this
It's actually insane how many clear signs they had. They even had all this time to go and build all of these different installments to observe & measure this & yet they ignored it & decided against keeping the water level low..
True. I find it difficult to believe that they were sufficiently ignorant to let this happen.
@@benjamincornia7311Read up some history, you'll see the government does whatever it wants and thinks of civilian safety last.
@@benjamincornia7311 We will risk everything and everyone if profits are at stake. I thought this was established by now
And they were playing with the lives of other people.
They needed to do the mandatory 3 tests of filling/emptying of the reservoir to declare the dam tested and working, to sell it to the new public electric society created by Italian government, the ENEL (the SADE was a private society). To do that, they didn't give a damn about the alerts they got from various geologists and from the mountain itself!
A 50 years old survivor of this disaster, who lost his whole family (his parents, his wife and 3 sons under-15) wrote on their gravestone (now disappeared after the 2004 riqualification of the disaster gravesite) the following, rightful sentence (here translated from italian):
I am a geotech engineer in Germany, your video is very informative for the public and covers the sequence of events and the responsibilities very well.
Wow geotechnical engineering just sounds impressive!!! I wish I was 1/2 as smart !! I’m so dumb a$$ but not an engineer either lol
@leanneadams2549 If I lived in the US, I wouldn't be an engineer either, because I would have had to take out neckbreaking student loans. In Germany however, I had more money in my account at the end of my studies than at the beginning. No tuition fees...
Love how you help with visualizing with different models. You have an amazing RUclips channel!
The attention to detail is insane. I chuckled when I saw those little springs at 4:10, to show us that it was pushed with a significant forward force. Super nice.
There is always someone who warns, and always some powerful people that ignore in name of profit.
In Brazil, in the city of Brumadinho, the Vale mining company had an auditor, this auditor said that there was a risk of a mud dam collapse, they fired him and hired another auditing company that said it was safe. 4 months later, the dam collapsed, killing 270 people, putting an entire city under mud, polluting an entire river, and since the responsible people are rich, no one was punished.
The Connections (2021) [short documentary] ❤
Pretty much the same happened in the Vajont disaster and, in 1985, in the Stava disaster.
@@WiseandVegan
...
Why?
My grandfather worked on the construction of Vajont dam. He was an expat from Sardinia and he was a crane operator.
I remember some of his stories and proud remembers about his job, i saw also an old picture of w.i.p dam, very impressive!
Well the dam itself held which is very impressive against such forces. He should be proud!
Your grandfather is a murderer then.
Italy in a nutshell: engineers & workforce doing their best job, politicians & managers being terrible and/or corrupted
As an Italian and Vajont researcher, I'll tell you, SADE engineers have their fair amount of guilt in this story: the heads of that electric society, the men who took the decisions which led to the disaster, all of them were engineers, and they got all the authority to do that because Italian government was too weak, corrupted and intimidated by the men and the will of that private society.
@@clochb non fosse che il capo della SADE era anch'egli ingegnere...
@@fabioartoscassone9305 beh si, so bene che gli ingegneri si sono volutamente "privati di ogni ingegno" nel gestire la faccenda.
In effetti mi rendi conto di aver sostenuto un'eresia, domani correggerò il commento
welcome to the last 4 years in the US.
@@AlvinSeville1*Last 40 years and that's being generous
¡Gracias!
Excellent video Sabin. Rarely does one come across a video of such quality and usefulness. Your modelling and explaination are top clas.
I used to live in Nurek, Tajikistan. The 300-meter-high dam there is the tallest embankment dam in the world. My father worked as an engineer, helping to build it.
As teenagers, we went on vacation to the Nurek Sea, a reservoir of water collected by a dam. We rested on pontoons not far from the edge of the dam, where we could stay overnight and swim (It is a fantastic feeling when you swim and know that under you is 300 meters of depth) We were told that the dam could withstand the impact of a nuclear bomb, but it was still unsettling to live at the foot of a dam of such height.
This is legitimately one of my favorite RUclips channels
There is a dam collapse in China in 1970s which led to 200,000 plus deaths.
I was about to say this. The Typhoon Nina-Banqiao dam catastrophically failed in August 1975.
And the Chinese army under Chiang intentionally flooded the Yellow River in 1938 as a defensive strategy against the Japanese, killing tens of thousands immediately and leading to 400,000-500,000 deaths in the aftermath.
link ?
@@alessiocataldi2434 links were blocked in comments, you can search "banqiao dam", this catastrophe is blocked by China so even most Chinese don't know it...
en.m.wikipedia.org/wiki/1938_Yellow_River_flood
I'm from Trentino and I live very close to the Vajont dam! I know the story quite well and it is a human tragedy!
Also I publish videos on electric engineering:) great job!
Ehilà @ATLaboratory ! È bello trovarsi tra italiani sotto un video stranierl ahahahah
Vajont tragedy was the worst we had in Italy and by now no one remember it, just people that live in Longarone, Erto, Casso and nearby. Visiting the dam was devastating for me, I cried and prayed for years for people that died in the catastrophe. I had a teaxher that was born near it, in Belluno, he was 20 when the wave hit, at the time he teached in a primary school near Longarone: the day after the tragedy, he showed up for his class and only half the children were there, all the rest have died. He lost at least 10 friends and a lot of relatives, he was so broken he comsidered suicide, but never did. Instesd, he kept teaching in different cities, including mine, 500 km away. We clicked in three years and then, when I was 22, we met again and stayed in touch: he's 81 now, lives in Belluno and I sometimes travel there to visit him with my husband and daughter. He's amazing but that tragedy hit him so hard he's cynical and sometimes fail to open up properly.. He asks a lot about me and my life, but seems to avoid my worries about him and how he feels, always trying to be gentle but never too close. To me he's so important and I'd like to help, but I know I can't. But if you want to know that tragedy, maybe you can: we have a TV show from 1995/96 called " Vajont by Marco Paolini". Try to find it subbed in english, maybe someone did it. Watch it, for never forgetting what happened here in Italy october 9, 1963. You will laugh and cry, I promise.
I hope people share and support the channel which I believe admirably serves the public, in the process being extremely detailed and diligent. I would encourage teachers to share and promote this material because I believe it is extremely useful for students. I don't think they receive much money for these excellent presentations so perhaps we should help them out.
Casso wasn't destroyed, only their school suffered some damage.
Also it's estimated that the blast from the water movement was comparable to twice the power of the Hiroshima nuke. So the town was destroyed first, water just came and washed everything away.
Also it wasn't greed but arrogance.
They had invested millions in the dam and they discovered the issue months before they started the trials to then sell the dam to the government. If they stopped it all they would've gotten no compensation.
The issue was arrogance: they thought they could control nature and the landslide. They thought they could make it come down slowly, with little water, and then just keep using the dam as normal once it was down and safe.
Also the critical evidence was the bypass tunnels. They helped prove the company knew of the issue and how grave and big it was, and that they just built around it instead of warning anyone.
Also there were warnings but they were mostly from socialist and communist newspapers... And at the time, in the heart of the cold war - 1960s -... Yeah... They were so easy to dismiss for people.
Anyway,
All in all, pretty well researched!
So glad I found this channel, igniting my passion for civil engineering. Too bad I am too old now!
Never to old to learn!
the title says "deadliest dam tragedy in human history", forgetting that there were a lot of much deadlier dam accidents. foremost among them the 1975 banquiao dam failure, credited to have killed 100000 to 200000 people, at least 50 times more than vajont. not to downplay a tragedy, but let's try to have accurate headlines
It said deadliest, not which caused the most deaths. Just like how current nuclear bombs are deadlier and larger than the ones dropped in ww2, but has little to no casualties.
Well, it was the deadliest at the time. Anyway maybe he said that because it involved only the dam, as opposed to banquiao that caused multiple dam colapses and had the majority of the death toll by indirect? means (Famine and the poor response to the tragedy). But yes, a lot more people died there.
Vajont dam failure, although catastrophic, is far from being the deadliest dam tragedy in human history with 1917 fatalities. Just last year, extreme rainfall caused the Derna dam in Lybia to fail, killing 6000 people at the minimum with some estimates being upwards of 20 000. The Banqiao dam collapse in China after a typhoon in 1977 is believed to have caused up to 200 000 deaths. In 1938, the deliberate breaching of dam-like leevees and dikes that contained the yellow river above the surrounding terrain by the Kuomintang in a scorched earth campaign caused over 500 000 deaths, 80 000 by direct drowning and the rest from the following famine
Congratulations, a really great work.
Amazing engineering information, I never thought I could find such a high level material.
Interesting, I wasn't familiar with this disaster before. Some notes however: I was uncertain where this occured throughout the video. Mentioning that this was northern Italy early on would be nice imo. Also I'm fairly certain there was a dam failure in china with tens of thousands of casualties which would contradict the title.
The Connections (2021) [short documentary] ❤
Are you from the US?
At least they checked it properly, sad they didnt decide to evacuate, 20cm seems like a lot more than the other days
A 50 years old survivor of this disaster, who lost his whole family (his parents, his wife and 3 sons under-15) wrote on their gravestone (now disappeared after the 2004 riqualification of the disaster gravesite) the following, rightful sentence (here translated from italian):
I hope this channel become more popular with the effort they add in.
Amazing story. Thank you for a great video.
great dedication. keep up the channel, keep up the good work
What a great video! You really know how to entertain your audience.
Super interesting, I didn't even know about this event. On your last point, it's not in your business interest to lose money or ruin your brand reputation (i.e. lose future money). It's that business leaders or politicians make mistakes, likely blinded by quick money or poll gains.
A true disaster for all us italians.
I don't know. I was in Naples and my server dropped my pizza face down.
@@Kiwibirdman1701 oh god
The Connections (2021) [short documentary] ❤
1975 Bianqiao Dam Failure in China is the deadliest dam failure in history. Official death count is 26,000 people. About 140,000 to 200,000 people died in the sequent starvation and epidemics caused by the floodings.
Great visualizations!
Ok, this is a really nice work ! About how accurate the explanation are, and also about the formalism, how the video is made, thank you :)
Those 3 experiments with the dam mock up are what every kid has ever done in a bathtub 😂
A very good documentary about a disaster caused by greed and human stupidity, literally a mass homicide, and nobody paid for this, except one of the main culprits who served just 1 year in jail. There's just one mistake:
9:28 Wrong, the village of Casso got barely touched by the main wave, because it was 200 meters higher than the dam, on a rock upland that repulsed the wave. The village is still there, more or less as it was in 1963. The main village of Erto also survived as you said, but some of its districts (small groups of houses scattered throughout the valley) got partially or totally wiped out. Their names are: Frasein, Le Spesse, Patata, Cristo, San Martino
The Mullaperiyar Dam is in a dangerous condition.
😢
Where is that?
Kerala, India@@MAGNETO-i1i
@@MAGNETO-i1i kerala
@@bitmanbitman3334 And where is that?
Visited last year, very impressive be on the bed of the artificial dam basin looking at it from the bottom to the top
"the landslide is getting slower when we reduce the water, lets increase the water level until its full!"
-vajont dam managment team and workers
Thanks for the video! Can you share the source of the 45 s failure time mentioned (approx. at 9:10) for the landslide, please?
Good job. I wish you do the analysis of the collapse of the Novi Sad train station building and explain.
Thank you Sabin for the check list 👮👮
Did you change your name from Lesics to this? I was shocked to see notification from a channel I haven't subscribed yet
Sir please make a detailed video on Gate closing system of dam
What was the action taken against the management?
Nothing.
Just a trial which took place between 1968 and 1971 in the city of L'Aquila (just look how much is far from Longarone...). But some of the culprits got aquitted from charges, others died before the end of the trial... only the chief of the dam operations in 1962-63 served a jail penalty... ONLY 1 YEAR, BARELY 12 HOURS FOR EACH OF THE (official) 1917 VICTIMS
We had something similar in peru... would be cool to have a video about it just by sheer numbers... it was an earthquake induced "avalance" that fell into a lake and exactly like this case, it pushed everything downstream. The diference is that it was a mudslide and the speeds were not 90km/h... were 450+... with debrie/rocks launched reaching over 1000kmh. The biggest one landed in the town of Ranrahirca, weighted 14000 tons. Yungay and Ranrahirca were the 2 towns hit, yungay being the most famous with 15000 casualties. Ranrahirca was buried in a way that it couldnt be found 20-30m of mud on top of it... Again, one of those situations that autorities were warned about it and did nothing... not that they could cause this was not a dam or something like that, its 100% natural landslide into a lake but, we were warned about the towns in that valley, it was known that thousands of years ago, monumental landslides had falled through the valley and literally changed the topography...
Outstanding video
"Insightful breakdown of the science behind the tragedy-lessons we must never forget."
Very nice 👌
River was permanently deverted to where??
Around the landslide and dam, it reconnects with the valley just after the dam. Actually the deviation starts from the remainder of the lake with which they planned to continue energy production if a landslide would have happened
Nicely explained. Pls also comment on post tragedy remedies and legal implications of this tragedy👍
Mate you need someone to proofread your videos. Ill do it for free because I love your channel!
That was sad to be honest about the land slide...but strength of the dam resisting that amount of pressure was beyound human imagination
Must be a world record in how many different visual styles was used of the incident😊
Bummer! Best of luck to you!
It's unbelievable that that dam still stand there
8:39 The famous month "Octomber" ...
😂
The Vajont dam disaster serves as a reminder to not live anywhere near a dam...
Can't imagine the sight of a 170 m high tsunami when you live in the mountain must have felt like Armageddon. They were literally so meticulous and yet they played with peoples lives
Sounds to me like the clay layer whicked up the water, when the lake level reached it. When clay gets wet it becomes one of the most slippery substances I can think of, when it's dry it's like cement. Also the land that moved also wicked up water from the lake, much more so than it usually did from rain. When it wicked up this water it got heavier and the water in it wanted to join the water in the lake.
Sabin, bro, please do a video on mullapperiyar Dam.
I always like the video before watching ❤
I'd feel so stupid if I ever do that in a video
Very nice
The Akernes situation in Norway comes to mind.
it makes me wonder why they didn't build a water break farther down the valley. if there was something to slow the size of the wave, would it have been less catastrophic
An interesting recount of the Vajont dam disaster, ignore the warning signs and suffer the consequences, that's what I got from this video.
This fits the Hawk Standard Disaster Formula found in the book, "One Excellent Place, Design And Creation... by Hawk Another example of wisdom clearly known but not followed.
IT'S TIME THAT PEOPLE STAND UP TOGETHER AND PUSH BACK AGAINST PROFITS IN THE NAME OF LIFE
Hello sir
Their little experiment with the water level seems like they tried to play with the patch of land that was moving. And they thought they managed to make it settle then raised the level again at 235m like the problem was solved.
That's so terrible. Just goes to show that you never know when your time is up.....
Nope, it just shows how certain I-know-everything people (SADE's engineers and some of their geologists) can become so stupid when facing money and "fame".
Longarone and Erto/Casso's people could've live their normal lives peacefully if it wasn't for other people which gambled with their lives, believing they could've bend nature's forces to their will
Why did you change your channel name?
Initial surveys should have picked this up😢
There's an error you should correct. The village of Casso was NOT destroyed but only seriously damaged because even if it was located near the dam it was much much higher than Erto. The fractions of Erto located near the shores of the lake were wiped off the face of the earth by a passing 30 meter wave. The real tragedy and destruction occourred in the valley below.
great effort
You should make a video on mullaperiyar.
I wonder if planting trees (species with strong, deep and broad roots systems) could help in preventing a landslide?
The landslide plate was 245 meters below the surface, this is why the geologist didn't find it and went ahead with the project. Core drillings went until 200m and they fond only rocks ruling the mountain safe.
Did the dam itself become useless as far as hydro was concerned or is it still producing. Maybe not if a lake was formed by the debris.
The dam is useless today. The reservoir is filled with the mountain that. So the reservoir was never filled again, because its full of rocks. The dam is still standing however and its used as tourists attraction of those wanting to see the site of the disaster. You can basically google the dam's pictures, Its still there but its basically useless today.
That dam looks MASSIVE
Sight of a really big crack in the ground...
Nah mate, it's alright, really no need to worry.
Then BOOM, see the dams okay
“The Mountain broke before the dam did.”
Hey there. I'm here with OSHA. Looks like we have a shoring problem
What country does this dam exist in?
In the Alps, the northern part of Italy
Elegant experiment
Cuando podríamos conversar en español de esto para una manera de mitigacion de la fuerza actuante de acción de expansión de ola
I liked how he used a suit to conduct the experiment. No lab coat needed.
Dam that's crazy
this engineering designs failures must be a remainder to us and we as human must being constantly reminds ours self for carefully managing mother earth becouse no human can hold when mother nature get angry for humans hand destroying her.
You know, in all odds they won't. And I don't quite blame them. But they could restore that Dam to functionality, and add modern day safe guards. I hope to see you grow here. I'm tired of the click bait youtubers.
Actually they cannot. The landslide filled the basin until few meters from the top of the dam. Plus mount Tok is still not safe and the same situation could happen again.
They cant. I visited It, the reservoir Iis literally full to the top with soil. Milions of cubic meters you can't realistically remove.
You know....there is now a whole mountain inside the reservoir, so removing that would be impossible. So no the dam, will never be used again for its planned purpose.
Dam... that sucked
Absolute cinema
Damn construction, and Dan gerous also
I feel as if they were on a learning curve and possibly should have been more cautious. But they didn't have the understanding we have today
The Connections (2021) [short documentary] ❤
Just a quick note-the Vajont Dam disaster had around 2,000 victims, not 200,000. Might be worth double-checking!
The limestone "wicked" the water into it....not percolated.
I'm eager to start my investment journey, but I need guidance on where to begin and how to make informed decisions.
I'm in full agreement. He sincerity and transparency make him a highly respected and admired expert.
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Does anyone have the investment analyst's contact info that they'd be willing to share?
Yeah I do
The dragon looks really angry!
Should we poke it with a stick?
How about a smaller stick?
Toc literally means ''touched in the head'' - as in ''crazy'' in Lombard language, while Erto means ''steep''. Great choice building a dam right there lol
As a civil engineer im not so sure the methods of the engineers where that outrageous. I as if we are monday morni g quarterbacking the event.
Was anyone held accountable for the deaths, after ignoring all of the warnings?