Oroville dam spillway damaged

[Ducky_Fresh]

Morgan Hill / Lake Anderson are on overspill. All we need is a minor earthquake now...

 

[Outta Control]

Morgan Hill / Lake Anderson are on overspill. All we need is a minor earthquake now...

Well the news folk says it need to have at least a 7.0+ earthquake to it happen. Don't think that is minor.

 

[Charles R]

Necromancy!

This video just came up on the engineering report of the spillway failure. Good watch!

[YOUTUBE]jxNM4DGBRMU[/YOUTUBE]

 

[bcj]

Thanks for the followup.

Here, hold muh beer.

 

[Map8]

Necromancy!

This video just came up on the engineering report of the spillway failure. Good watch!

Thanks for posting.

 

[kpke]

That was dam good. Thanks.

 

[PorradaVFR]

That was really interesting, thanks!

 

[Johndicezx9]

I feel smarter for watching that... thanks for posting!

 

[wazzuFreddo]

I feel smarter for watching that... thanks for posting!

He explained it so well even an Electrical Engineer could understand it

 

[Johndicezx9]

 

[motomania2007]

I enjoyed it too I had wondered what actually was the failure mode and why and this video explained it really well.

I'd like to see a follow-up video on the repairs and how they went about fixing it so that this sort of thing doesn't happen again.

And I know it's probably far fetched to hope for but I wonder if they've taken those lessons and applied them to other spillways at other dams.

 

[auntiebling]

I enjoyed it too I had wondered what actually was the failure mode and why and this video explained it really well.

I'd like to see a follow-up video on the repairs and how they went about fixing it so that this sort of thing doesn't happen again.

And I know it's probably far fetched to hope for but I wonder if they've taken those lessons and applied them to other spillways at other dams.

I'd alsonlikentonsee a follow up. Grady makes good videos I've been watching them for a year or 3.

They fixed it by pouring large buckets of cash into the spillway.

The points he was explaining about ways to prevent such failures are certainly applied to any new structure and likely anything in the past 20 years (complete guess) The Oroville dam was started in 1961 and completed in 67. There are plenty of contemporary dams of similar construction that haven't been tested to this extreme, and have also not been updated to make them safe-r. The spillway at Lexington reservoir looks pretty similar to me, and it was built in the 50s.

 

[Climber]

We've learned a thing or two in the realm of engineering.

Here is an example that was played to one of my classes on my first day in engineering school.

[youtube]3mclp9QmCGs[/youtube]

 

[berth]

Well, it's funny.

So, from a "Software Engineering" point of view, specifically data processing, we used to say you're not a professional until you've lost production data.

Nowadays, the ante is up to "you're not a professional until you've accidentally wracked up 1000s of dollars of cloud hosting fees".

Colleague discovered they had a process running on AWS costing $10K a day. They didn't discover it for a few weeks.

AWS is know to refund such...uh...adventures.

 

[tgrrdr]

They fixed it by pouring large buckets of cash into the spillway.

$1.1 billion and it might require hundreds of millions more.

Also, there are still several dozen dams in the state that require similar retrofits.

 

[Climber]

$1.1 billion and it might require hundreds of millions more.

Also, there are still several dozen dams in the state that require similar retrofits.

That's what happens when officials kick the can down the road, costs to repair escalate.

There should be some people losing their pensions over this. IDK why public decision makers aren't held accountable when their actions or lack of cost the taxpayers $$$$$$

 

[ScottRNelson]

Necromancy!

This video just came up on the engineering report of the spillway failure. Good watch!

Thanks for sharing. Worth watching and I learned quite a bit.

If someone discovers a follow-up video about rebuilding the spillway, please post it.

I've watched a lot of episodes of Engineering Disasters on History Channel. This one comes pretty close to making it into that series.

 

[BillSmith]

Deferred maintenance? Well, we do have to fund that very important infrastructure project. You know, high-speed rail.

 

[Johndicezx9]

His other videos are worth watching as well.

 

[berth]

That's what happens when officials kick the can down the road, costs to repair escalate.

It wasn't clear to me that this was caused by a lack of repair and maintenance, but rather bad data upon which decisions were made (i.e. the quality of the underlying rock).