debris flow - 22 août 2011 - Crue torrentielle à Saint Julien Montdenis

Vidéo d'une crue torrentielle à Saint Julien Montdenis (Savoie, Vallée de la Maurienne)
La crue a duré environ 40 minutes
La vidéo a été filmée avec un objectif Fisheye, d'où une grande déformation de l'image.
English :
Video of a torrential flood in Saint Julien Montdenis (Savoie, Maurienne Valley)
The flood lasted about 40 minutes
The video was filmed with a fisheye lens, resulting in a great distortion of the image.
Support my work on patreon!
/ alexmodesto73

[@GlobalistJuice]

Major credit goes to the creek/channel/wash/trench engineers, who had the foresight to build that thing bigger than what might seem necessary.

[@vladimirvlad2563]

I bet there are some construction rules when it comes to building something like this.You can't just throw in some materials and make it over.

[@Metal0sopher]

Not foresight but centuries of it happening every spring. This is a regular yearly thing.

[@serhiyranush4420]

@Raphael Royal Actually, no-one gives a phuck.

[@WELLINGTON20]

It’s normal.

[@Indiangaming-oc2du]

kzbin.info/www/bejne/m5CWnqigmt6gbcU

[@bg147]

What a beautiful country. I love how the canal is lined with large rocks on the sides and tiles on the bottom. High quality and charming. Everything here in the US is concrete.

[@streetsafari0]

Horses for courses. They use the material that is around them. Getting concrete to some of these areas is expensive, especially when you have plenty of stone to us. And in certain places high stress places, they will use plenty of concrete.

[@dalewright3667]

This mud flow is what occurs in high mountains and rain storms. Truly Awesome display

[@DrDeuteron]

A classic instability[1]: deep water flows faster, overtakes the water in front, gets deeper, flows faster, gets deeper, flows even faster, until a hydraulic jump forms, stopping the increase. Trailing water is shallower and flows slower, until it is overtaken by the trailing hydraulic jump. You usually see it in thin films flowing down flat surfaces, but here it's on an impressive scale. [1] maybe a "hydraulic toe jump instability" related to the Froude number (ratio of bulk flow speed to small surface wave speed).

[@Tacsmoker]

i was enjoying the flow above the flow but the camera operator cut out the best 2 minutes lol

[@mmacrini]

That is a well-engineered drainage system. Wow.

[@robertheinrichvonseyfenste267]

it is NOT!

[@luminescence9949]

@@robertheinrichvonseyfenste267 why’s that? Geht auch auf Deutsch

[@eily_b]

Wow, I've never seen a mud debris coming down a mountain in waves like that. Impressive.

[@rhondalamb7053]

It is the speed bumps they put in to hold it back

[@jawadad73]

that and temporary blockages of debris, trees and large boulders slowing it down momentairly and then getting deblocked by the mass of water slammin into it.@@rhondalamb7053

[@Reviloj]

Amazing. Watched through. Again. Weather is fascinating. The stonework of the trench was well done. Kudos to those standing on the bridge. That would've made me a bit nervous.

[@NoNORADon911]

Man that water/soil looked fertile, could grow some good stuff with that I bet

[@craigmad-doganderson9042]

Great footage of this event! Well done! 😎

[@jiveturkey9993]

I like how well-engineered the channel is. It looks rough and all but it handles it so well. It's rough appearance seems like it would get gouged out but the opposite seems to happen.

[@Galatv_]

X 🇹🇷 💛♥️ 🤍🖤 💜💟 🤎💙 💚💖 🇭🇺 X

[@meruliouslacrimens5154]

When seen like this, you can understand how poor water magement can destroy villages further downstream especially with what is borne along with it.

[@MrDrums76]

wow! that is awesome! its cool how you can see the different surges of water coming down through teh canal. and thats a beautiful country by the way.

[@feth7747]

GREAT videography work: the camera takes the action, and no viceversa.

[@alexandre.modesto]

thx

[@sixstringedthing]

What a stunning part of the world. The sound and sense of force and power when each wave of debris build up then hits the hydraulic jump in front of the footbridge is quite incredible. I'm trying to imagine what this might look like and the damage it could cause if somebody forgot to build the steps into the channel and it was just one long straight chute. Scary!

[@kamaruddinlazim5434]

pqq

[@kamaruddinlazim5434]

pqq

[@mathuetax]

Wow! That was impressive to watch!

[@ModelingSteelinHO]

Well done. Not to many videos of this type of debris flow. This is the absolute best video of debris flow dynamics on you-tube . Excellent video ! What a beautiful country too.

[@101snuff]

La grande classe d'avoir pu filmer ça !! Normalement ça se fait à la webcam et les gars qui étudient ça n'en voient jamais en vrain/vitesse réelle ! Magnifique

[@Mojave888]

Cool subject, great photography and landscape!

[@Astrofish226]

Brilliant. Well done. Thank you!

[@hoppeltrottel7484]

I love the mountains, but I also have much respect. They can be a terrifying place.

[@gustav250777]

Amazing video, well done.

[@screwsnutsandbolts]

Wow !. Incredible catch !

[@MrDjjeanjean]

Bravo d'avoir pus filmer ça :)

[@Kanoee64]

That was cool Thanks for the video.

[@TheCatAteMyShoe]

That was incredible to watch the surges.

[@richardsimpson3136]

This one is on here in at least 8 Different Videos! It's a DEBRIS FLOW as a result of a FLASH FLOOD up in the surrounding HILLS!

[@alainrenaud8869]

Phénoménal, très très impressionnant !

[@alexandre.modesto]

Tout cela en quelques minutes..

[@pepino735]

what would be interesting to know is how when and why they built that spillway, great!

[@termineitorgenesisbu2951]

That's having a good water blur that's thinking about the future and without garbage that obstructs it

[@cricri6624]

C'est bien joli par chez vous !

[@RockGeek00]

This debis flow control channel is pretty neat a bit further down the it becomes a bridge over a highway before reaching the Arc river.

[@alexandre.modesto]

Yes exactly

[@myhairisfullofhair3792]

beautiful place.

[@cgcgundersen]

Post 10 would approve of this....

[@15secofFame]

If that flow stopped Post 10 would have jumped in with his rake ready for action!

[@IGbullshark]

@@15secofFame Are you kidding? He'd be in the trenches long before the flow stopped

[@josesalvador3106]

@@15secofFame qj

[@delight6662]

Swiss ingenuity is so impressive.

[@yvescarron328]

Thanks, but it's in France

[@patrickrichard1966]

bonjour ; et tout simplement impressionnant !! punaise le paquet de cailloux que ça charrie

[@SuperBajafresh]

WOW! Thanks for sharing. Wow!

[@alexandre.modesto]

Merci pour l'info sur le crue de Villargondran Attention, la crue à Saint Julien c'était le 22 Août 2011.. cette année, rien du tout !

[@atigerclaw]

Reminds me of a choose-your-own-adventure book I read back when I was in, I think middle school. At one point in the story, you've been captured by villain and you're enroute to their base/lair and you have the option to escape the transport into the jungle. Escaping is fatal. One option after you escape is to try and navigate the jungle, and results in you getting caught in an army ant migration and by morning your bones are picked clean. The other option is following a gully... You hear a rumble of thunder from a storm in the distance and pay it no mind. Then, a few minutes later, basically this video is why it was a bad idea to take the gully.

[@tag7100]

Found this spot on Google Earth. Less than a half mile after this point is an aqueduct over a highway, running parallel to a road. You can go to Street View under the bridges and see the difference in how strong they each have to be. But I'd like to see footage of this river dumping into the next one downstream.

[@rsuku8836]

Super video.very nice Sukumar India.

[@JdamRekt]

In my years of expertise in the industry the reason why this happens is because i have no clue what I'm talking about.

[@jimfritz9503]

And you said it very well. No wasted words.

[@KensGarage.]

what a beautiful place

[@rosaiselmorslesfuentesmora6587]

Impresionante esto es por lluvias o es de origen volcánico. Saludos desde Panamá 🇵🇦

[@ashitaka13400]

Wow très impressionnant ! Juste par curiosité, comment avez-vous su que la vague allait arriver ? A quoi sont dues les vagues successives ? Y a-t-il un barrage en amont ?

[@spookaup]

Very good quality!!!Can you tell me what camera do you use?

[@edbroaotearoa1198]

Your drains are prettier than our cities royal gardens

[@bryangreenway]

Brilliant, love the way the lady just glances down & walks off - she’s seen it a few times . Has channel ever overflowed into the town?

[@johnmca5643]

She was nicely dressed....

[@paulmanson253]

At a guess,overflow in this part of the world has happened since the end of the Ice Age. And as long as there has been a human community in that valley,there has been some mitigation effort. That flume required a lot of work,effort,materials,design, etc. When it was done,what the preexisting structures were,no idea. But there would have been something.

[@jmr1068204]

Interesting how it has a random pattern. Starts light, then heavy, then a really heavy wave, then appears to slack off, then gets heavy again, then light, then heavy.

[@jays106]

jmr1068204 that’s what happens when too many people finally flush at taco bell 😂😂

[@billiebleach7889]

jmr1068204 you make it sound like a relationship that turned into marriage

[@vrbrozov]

I, too, found this fascinating, so I googled it. Turns out the formation of surges in the flow is a natural phenomenon that occurs when debris slows a wave down and other waves pile up behind it. The drainage channel has to be long enough and the contents of the flow must be a particular mixture of debris and liquid for this to occur. Reference: agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2005RG000175

[@jmr1068204]

@joe Domjan That's a reasonable theory. I have also considered that since water takes the path of least resistance, maybe it rained really hard, then slacked off again, then started raining really hard again and kept repeating. It would cause it to have quick gaps and slower flow and then come back again.

[@detroitjohnson7625]

@@billiebleach7889 lol

[@chrisrebar2381]

what is the source of this mud? What is the source and reason for this culvert that has obviously been there for many years?

[@FloozieOne]

Although it is awesome to see the power of the water this is not dangerous in the least. The sluice is made of rock and cement and has obviously been there for quite a long time. People aren't hiding in their houses, they've just seen it all before and it isn't a big deal for them. Now if it filled up and over-topped it would be another story, but I'm sure they built it high enough to compensate for that.

[@WesleyAPEX]

What causes the water to lower and rise like that? It’s very unusual. It kept coming in waves.

[@SvendleBerries]

Im no expert, but I would imagine it could be a couple different things: Either its a few different rivers coming from the mountain that all condense into one, and every river upstream surged at a different time. Or it could be that debris clogged up the river in a few places and then dislodged releasing the water that built up behind it. Or it could be a combination of both. Thats why Im glad I dont live anywhere (relatively) close to the mountains or a river lol

[@janelindley1345]

S

[@rudyrobles9902]

@@SvendleBerries No m B B but am No B am M ex in

[@alexandre.modesto]

it's just the erosion of the mountain The rock is very schistose

[@mary-ruthflores4107]

I’ve seen it do the waves when much further up, the erosion will breach a section and widen the channel, releasing more water and mud

[@josephsheranda]

This happens every time the neighbors have tacos for lunch. 😛

[@donniecatalano]

They must be extremely cheap, low quality tacos 😂

[@evonirkirsch1790]

O final do vídeo é tudo de Bom. Amei

[@lilianlisoficial]

?

[@lorenzopiano6379]

Mountain water flow !!! STRONGEST ONE ....

[@liugng71]

They are sometime 2 layers of the flash flood.

[@QueenDaenerysTargaryen]

Excellent💯👍👏 video🎥👍 thanks for sharing! 🔥🔥🐉🐲🐉🔥🔥👍👍

[@TralfazConstruction]

One surge after another, a real crowd pleaser.

[@johnnydavis8351]

Really awesome. ......somebody obviously did their homework 😎😎😎

[@gaiamaruchanel439]

Good editing

[@remi-tl5lp]

Cette "boue" est dû à l'érosion rapide d'une ancienne carrière d'ardoises , elle en a bien la couleur, et de l'entourage sans végétation qu'on peut voir au loin sur la vidéo. J'ai été chercher sur Google maps , ( très facile vu l'hydrographie du lieu) pont de la D 79, une pancarte indique le circuit des ardoisiers, un chemin des ardoisiers longe ce torrent, qui se jette dans L'ARC plus bas, appelé Ravin de St Julien a été renforcé , et apparemment cela résiste très bien, renforcé pour son passage " en ville" il me semble, plus haut c'est nature. Belle vidéo et son bruit, le top= aucune musique polluante comme on voit souvent. Impressionnante la vague arrière qui va plus vite et qui rattrape la première en lui passant au dessus laissant voir au début les deux pas encore mêlées.

[@alexandre.modesto]

Le bassin versant est un peu plus grand que juste les carrières aux alentours. Mais c'est effectivement de la roche schisteuse

[@remi-tl5lp]

@@alexandre.modesto Merci de la réponse !

[@staudtj1]

O.K. Whos backyard does THAT drain into??

[@lemmecheck01]

Go to 1:10 time stamp for the actual mud flow.

[@zwigoma2]

They should do a like the running from the bulls thing here It'd be a classic

[@alanhowitzer]

And that's what we call a channelized flash flood.

[@bearbon2]

That's a well built sluice if can handle surges like that.

[@81eagle]

Nice riffles, wonder if there's any gold deposited in them after an event like this.

[@patrickyoo1301]

This kind of mud fall always happens in Alps

[@TralfazConstruction]

I have no trouble believing that.

[@chrisemerson7743]

Wow, it would slow down like it was almost over and then another shit pile down stream! That is just crazy!

[@armandoesquivel6901]

Lograsioso que sucede cada que llueve pero nunca se desgasta el terreno pero cae tierra siempre

[@mipajaro1]

Pretty country.

[@AvoDJ]

wow!!! FANTASTIC!!!!

[@GreggDuncanMcLean1]

Yes water will roll down a mountain very powerful and fast

[@jerrythecoo3295]

Talk about Rock & Roll!!!!!!!!!!!!,.............

[@rochelimit55555]

omg some of the swells there is really terrifying

[@alexandre.modesto]

cette crue était liée à des pluies torrentielles d'été et non pas à la fonte des neiges. Mais effectivement il se pourrait que ça ait un impact.. réponse dans les jours à venir, la T° va augmenter.

[@CBeard849]

Excellent video, amazing!

[@franciscomonterorufino7843]

Pero esto de donde es?.

[@forevergogo]

Sorry guys, just had a bit of chipotle, had to flush twice. My bad. Didn't have to record it....

[@sonic1045]

When ever a bigger wave come down the water or muck get very low. Then the big. one come again @ 1:13 the muck start coming down .... @ 1:24 @ 1:55 @ 2:41 @ 3:06 or @ 3:07 @ 3:17 @ 3:37 @ 4:20 @ 4:45

[@kay110]

I can understand where it comes from (mountains, rain, mud/rocks), but where does it end up? There must be a lot of it to clear away after the storms have ended.

[@macauleyholmes6403]

Go pro ?

[@kartoffsun]

It's speaking the language of the waves..

[@jmr1068204]

What causes it to come in waves like this? I've noticed the same phenomenon in videos in California storm drains where it gets taller with each subsequent wave about 15-30 seconds apart. What's the cause of that?

[@laurencefausold5555]

Debris temporarily piling up the flow then breaking up, causing the surges.

[@stephenwilliams4501]

Fascinating.

[@samoh2599]

Very lucky. It came from mountain but not mixed with woods or rocks whick can block the slope

[@tracynation2820]

Excellent. 💙 T.E.N.

[@mayram.4706]

Eso si que estuvo tremendo!!😨🙋✌👍

[@levthelion]

Good spot to fish!

[@maxiepattie85]

SKATE THAT SHIT! This should be on the new Skate 4 (video game)!

[@aquelarceo437]

Something I have observed was that there was no garbages floating or carried by the mudflow! The people there know how to disposed their garbages!

[@alexandre.modesto]

no..

[@currentbatches6205]

Los Angeles has debris basins; I'm guessing these folks have figured it out.

[@alexandre.modesto]

it's in France..

[@warphonesS22]

Imagine before they built those diversion channels! The city would be ripped apart!

[@alexandre.modesto]

yes it is

[@AnhAnh-zc9ri]

greateeee video

[@Joesire]

It seems to come in layers

[@peyo001]

Why exactly is this happening? Is it to relive pressure or is it to clean the canal..where does all that silt and debris go? Can't say that I have ever seen something like this before..strangely interesting.

[@daniellbondad6670]

Humans tend to underestimate big risks.But I hope no one got hurt here.Just try and guess how many gallons of mud are passing through every second.I think 1,000 gallons.

[@Bl4ckw0lf1]

I disagree.

[@bernadettegrele3035]

Daniell Bondad qmm

[@rossbrumby1957]

By how the flow comes in waves, I'm guessing it's a controlled release? Would indicate a catchment of some kind above, maybe to absorb extreme downpours to avoid overflow of a too small drainage channel?

[@alexandre.modesto]

no, it was after a thunderstorm. All this is natural, what breaks the energy are the rafters (stairs) that cut the energy and make the mud not accelerate

[@BryanOlayaGarcia]

A rock naturally takes millions of years to get up hill

[@pneumichelin2966]

Quand tu vois les spectateurs tu comprends parfois les pertes humaines qu engendre ce genre d evenement extraordinaire

[@kewlor8261]

WHERE ON EARTH ARE THESE MASSIVE FLOODS COMING FROM AS IT'S CERTAINLY NOT A DOWNPOUR HERE??

[@theheyseed]

impressive, where does this empty out into?

[@Syrnian]

How many corpses did you spot?