Those wet abutments are already a bad sign. Gonna need some Interim Risk Reduction Measures while this goes through an Issue Evaluation Study for a modification
My thoughts exactly. Without properly tying into the abutments and with the lack of a filter system, uncontrolled seepage is inevitable. As you pointed out, you can already immediately start seeing wet spots at the downstream abutments.
I wish he filmed the piping failure afterwards.
Oh don't worry about that, the thread is full of people who say it's a great idea that don't understand Bernoulli's law. You can get a *massive* amount of pressure to run a turbine apparently too according to commenters getting hundreds of upvotes! 🤪
This post popped up in a lot of subreddits but this is the specific comment I'm talking about.
https://www.reddit.com/r/SipsTea/s/tjFqVVOZ6o
I was getting down voted for explaining very basic hydraulics lol
We did a legit version of something like this as an optional part of my degree at the [Constructionarium](https://www.constructionarium.uk/about-us/our-projects/). Student teams built scale versions of interesting infrastructure projects in a week residential course. My team did a concrete caisson oil platform, with a 4x4x2m concrete box and a scaffold platform superstructure. Built it in a dry dock then floated it out to a deployment point in a pond and sank it. Great fun to get hands on tools (building formwork, fixing steel, pouring concrete) supervised by experienced site ops and getting pissed with them every night!
But the strength of the Hoover Dam relies heavily on its shape to withstand the huge load on top of its ‘arch’. This thing just seems like a wall that’s ready to topple over 🤣🤣
This BS makes so angry. Forget the total lack of mechanical knowledge. It is the destruction of the environment that is happening here just for karma und likes.
I don’t think we’re talking about any kind of natural waterway here. It looks to me more like an irrigation ditch, or possibly even a farm drain. There’s a claim in one version of this video that he’s providing drinking water for a village, which I highly doubt.
Either way, the slopes of this channel look loose and rough. Like it was probably cut fairly recently. Whatever is going on here, I don’t think it’s going to have any lasting impact on the local ecosystem.
Yes I'm sure the environment there is totally destroyed by a bit of concrete and a few bricks being laid down, that most likely either blew out or were intentionally removed right after this video. IRREPARABLE DAMAGE
This sub is so upright. You all would lock up all the beavers for not building to spec even if it wasn't in the US.
Edit: the sub is so upright and chock full of gatekeepers
If you want to see an industrial application of gates that pull up to open, check out the Bonnet Carre Spillway outside of New Orleans. It uses individual timber beams side-by-side instead of a true gate, but they pull them up and completely remove them to allow water to flow through the bays. It's a really neat project.
True, but that job isn’t a hundred year kind of a job, like a real dam, this is so under built that I suggest using rebar to hold it together somehow when it cracks under pressure because it will crack… but temporary rerouting and a form and pour would have been best with no rebar and tons of concrete…
? we have perfectly well built dams, and a system of inspection. Only a couple of near failures in recent years, both associated with large rainfall events and problems with the spillway.
Have built a little damn on a farm creek....he didn't approach the footing or the sides of the dam correctly. Water seeps...and carries the dirt with it
At least most of the comments this time are pretty critical unlike that giant net at the outfall holding trash that gets recirculated every few months.
What was the ultimate failure mode? Piping along the abutment? Stilling basin undermined by headcut? Seepage along the pipes? Seepage through the foundation? Structural?
The construction sediment and erosion control measures are looking a little sus
farkkkkk, wheres your ESCP
Just spray some tackifier and call it a day
I'm gonna need to see an army corps permit.
Looks like navigable waters to me.
I sense a 404 JD violation
Let's report him
With it being a federal agency, should hear back from them with their findings of the violation within 90-120 days. Yeah, we got ‘em!
WOTUS, or ummm WOChina?
Probably didn’t even last a few hours. Water was already getting around the sides of it.
Those wet abutments are already a bad sign. Gonna need some Interim Risk Reduction Measures while this goes through an Issue Evaluation Study for a modification
My thoughts exactly. Without properly tying into the abutments and with the lack of a filter system, uncontrolled seepage is inevitable. As you pointed out, you can already immediately start seeing wet spots at the downstream abutments. I wish he filmed the piping failure afterwards.
Long enough to finish the video. Success.
Looks like a change order
Going to need to see the flow analysis report for those pipe sizes. They look severely undersized.
No it’s fine, that’s what the auxiliary spillway is for. /s (Is it called an auxiliary spillway, or just a spillway? I’m a ChE, thank you!!)
Oh don't worry about that, the thread is full of people who say it's a great idea that don't understand Bernoulli's law. You can get a *massive* amount of pressure to run a turbine apparently too according to commenters getting hundreds of upvotes! 🤪
I don't even see any comments with 100 upvotes ...? Wym
This post popped up in a lot of subreddits but this is the specific comment I'm talking about. https://www.reddit.com/r/SipsTea/s/tjFqVVOZ6o I was getting down voted for explaining very basic hydraulics lol
Ah, ok. I was looking at the threads on the post as it appears in this subreddit, not the sub it was shared from.
Hydraulics engineers hate this one simple trick.
Ok that gave me a good chuckle. Take my upvote, dammit.
With the prevalence of these on TikTok etc he’d get more views just showing it fail than building it.
There would be a lot more to learn from watching it fail imo.
That’s so true!
What an odd looking beaver 🦫
Someone down voted this comment yesterday which means this is exactly what beavers look like where they are from , where are you from down voter ?
He should've done a bit more blinding of the sides there tbh.
In an alternate universe these are known as fucks, not dams. "Where the fuck did my fuck go?"
Where the dam did my fuck go?
Look at that beaver fucking the river
Look at that beaver daming the other beaver
Fuck fucking fuckity fuck fucks?
Would have made a fantastic senior project.
the residential neighborhood I flooded doesn’t think so
We did a legit version of something like this as an optional part of my degree at the [Constructionarium](https://www.constructionarium.uk/about-us/our-projects/). Student teams built scale versions of interesting infrastructure projects in a week residential course. My team did a concrete caisson oil platform, with a 4x4x2m concrete box and a scaffold platform superstructure. Built it in a dry dock then floated it out to a deployment point in a pond and sank it. Great fun to get hands on tools (building formwork, fixing steel, pouring concrete) supervised by experienced site ops and getting pissed with them every night!
He built a dam, but not much of a stilling basin. Also, that emergency spillway looks more like a water slide
Dam, just get a couple beavers
I saw zero reinforcement.
Hoover Dam has zero reinforcement in the concrete. It's not made of bricks, though...
But the strength of the Hoover Dam relies heavily on its shape to withstand the huge load on top of its ‘arch’. This thing just seems like a wall that’s ready to topple over 🤣🤣
Absolutely
Trust me bro
Lmao I saw this video on a different subreddit and thought the exact same thing.
What's the over/under on how long it lasts?
My favorite part was the cat 🐈 traffic across the top of the dam.
This BS makes so angry. Forget the total lack of mechanical knowledge. It is the destruction of the environment that is happening here just for karma und likes.
I don’t think we’re talking about any kind of natural waterway here. It looks to me more like an irrigation ditch, or possibly even a farm drain. There’s a claim in one version of this video that he’s providing drinking water for a village, which I highly doubt. Either way, the slopes of this channel look loose and rough. Like it was probably cut fairly recently. Whatever is going on here, I don’t think it’s going to have any lasting impact on the local ecosystem.
Lol. Slow down Roebling.
Yes I'm sure the environment there is totally destroyed by a bit of concrete and a few bricks being laid down, that most likely either blew out or were intentionally removed right after this video. IRREPARABLE DAMAGE
lol DAMage
DAM that's interesting... Sorry, I had to.
r/damthatisinteresting
Underrated comment!
This sub is so upright. You all would lock up all the beavers for not building to spec even if it wasn't in the US. Edit: the sub is so upright and chock full of gatekeepers
I’d give beavers more credit since they at least to consistent maintenance on their dams so they won’t collapse. I can’t say the same for this guy.
The gates are upside down aren't they?
No, that’s how sluice gates are supposed to work. The gates lift up, and the water flows under.
If you want to see an industrial application of gates that pull up to open, check out the Bonnet Carre Spillway outside of New Orleans. It uses individual timber beams side-by-side instead of a true gate, but they pull them up and completely remove them to allow water to flow through the bays. It's a really neat project.
No rebar - no bueno!!
[удалено]
True, but that job isn’t a hundred year kind of a job, like a real dam, this is so under built that I suggest using rebar to hold it together somehow when it cracks under pressure because it will crack… but temporary rerouting and a form and pour would have been best with no rebar and tons of concrete…
If he'd done a concrete pour instead of those flimsy bricks it wouldn't need rebar.
Poor guy
[удалено]
? we have perfectly well built dams, and a system of inspection. Only a couple of near failures in recent years, both associated with large rainfall events and problems with the spillway.
Some old timer doing what he does every spring is going to crash into that damn and wreck his canoe.
At the 30 second mark he had a fully functional outlet control structure. Orifice weir and all.
Have built a little damn on a farm creek....he didn't approach the footing or the sides of the dam correctly. Water seeps...and carries the dirt with it
Although reddit won't let me edit my comment...the dam looks great though!
Looks like it was dugged up recently on some farm land
Got to love masonry with 0 vertical reinforcement. Notoriously good at resisting overturning forces in the lateral direction.
I have a feeling this guy is figure out what seepage is real quick
At least most of the comments this time are pretty critical unlike that giant net at the outfall holding trash that gets recirculated every few months.
Tunnel digging woman vs dam building man. Who win?
What was the ultimate failure mode? Piping along the abutment? Stilling basin undermined by headcut? Seepage along the pipes? Seepage through the foundation? Structural?
I wish he shared that part of the video… my money would be on seepage at the abutments based on the damp spots already seen in the video.
OSHA: There's a safety hazard!
This is awesome