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Oroville Dam: What made the spillway collapse? (California)
San Jose Mercury News and Propaganda ^ | February 17, 2017 | Paul Rogers, Coverup Department

Posted on 02/18/2017 4:49:41 PM PST by Navy Patriot

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To: Navy Patriot

GOV MOONBEAM IS SPENDING DAM MONEY AND INFRASTRUCTURE REPAIR FUNDS ON ERIC HOLDER’S LEGAL FEES......


41 posted on 02/18/2017 6:31:14 PM PST by zzwhale
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To: Paladin2

I read that the water sprayed into the main spillway through those vents because of saturation of the soil. Bad news.

The 2013 main spillway damage was obviously never fixed correctly, and failed terribly last week. That hole is now an entire section of it now in a hole, and a cavern under the remaining concrete, working its way uphill as we type.

The method of keeping up the emergency spillway was long known: grass on the hill for smooth flow, rocks along the edge of the weir to break the spilling water. Ignored.

Still can’t find if a river valve is still down and it’s control room still submerged, after the 2009 valve test failure and tunnel damage. Almost killed several workers.

This unmaintained dam is a catastrophe waiting to happen, approaching quickly.


42 posted on 02/18/2017 7:11:17 PM PST by polymuser (There's a yuuuge basket of deportables.)
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To: blueplum
Because the dems are so narrow-minded in their thinking that spending an actual half a million in repairs to save a potential 200 million in repairs is a concept they are unable to process.

The real problem is that the repair money would have been spent in a Republican-leaning county.

43 posted on 02/18/2017 8:00:53 PM PST by CurlyDave
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To: mrsmith; Navy Patriot

“EXPANSION JOINTS HAVE TO BE CAULKED.”

Could be. Here in Seattle they had to demolish a 15 story building that was only about 8 years old. Somebody neglected to put a dab of epoxy on the ends of the steel cables when they were trimmed off. The cables started rusting inside the concrete. They spent a few million trying to repair them, but they couldn’t - so down the building came. (On purpose, but....)


44 posted on 02/18/2017 8:07:27 PM PST by 21twelve (http://www.freerepublic.com/focus/f-news/2185147/posts FDR's New Deal = obama)
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To: Navy Patriot

Oh, those dam experts again.


45 posted on 02/18/2017 8:54:17 PM PST by The_Media_never_lie ( Agenda driven news is fake news.)
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To: rfp1234

These things happen when you have a Lake full of Champagne.

If it was full of Coca Cola, the Dam would have eaten away decades ago.


46 posted on 02/18/2017 8:56:58 PM PST by Kickass Conservative (The way Liberals carry on about Deportation, you would think "Mexico" was Spanish for "Auschwitz".)
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To: Karl Spooner

I’ve seen this, but I don’t understand the ramifications. It appears that some kind of repair was done here, but the problem recurred, to put it mildly.

If there was damage in the first place to the original concrete, why wouldn’t the damage occur again, even if the repair restored the original condition perfectly?

Doesn’t this indicate a design flaw in the vertical profile? Perhaps that drop-off is too steep?


47 posted on 02/18/2017 8:57:41 PM PST by dr_lew (I)
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To: Paladin2

Yeah, I recall Don Ho passed away shortly after Don Imus got in trouble for saying “nappy headed ho’s” on the air. There were plenty of tweets and parody videos where Ho’s last name was bleeped out to ridicule the outraged leftists.


48 posted on 02/18/2017 10:16:22 PM PST by rfp1234 (DinosorosExtinction)
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To: polymuser

Interesting points I’d not seen elsewhere, The spray jets from the wall seem too uniform and energetic too be just some weep holes though.


49 posted on 02/18/2017 11:56:43 PM PST by Paladin2 (No spellcheck. It's too much work to undo the auto wrong word substitution on mobile devices.)
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To: Paladin2
"There are some sort of water sprays on the sides of the spillway that must have been installed for this effect."

~~~~~~~~

That is so wrong that I hardly know where to start...

Those are drains to allow water that has escaped the channel to return to it. The fact that they are "spraying" due to high external pressure simply indicates that they are having to deal with more external water than the designers anticipated.

Some of that water got outside the channel through the known breaches in the sidewalls at the well-documented flow deck breach. Some of it is splash-over due to the turbulence and spray caused by flow perturbation.

With the channel full and flowing as much as 100Kcfs, no one can safely get close enough to document all the possible sources. But --the "return drains" issue is one that can be dealt with after the damaged channel has served its designed purpose of lowering the lake level and compensating for anticipated inflow.

~~~~~~~~~~~

"Aerators"? Nope...

50 posted on 02/19/2017 5:30:15 AM PST by TXnMA ( A day without learning something, plus praying for someone who never knows of it -- is wasted.)
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To: Paladin2

Sorry bad joke he was kinda a cool dude


51 posted on 02/19/2017 9:21:36 AM PST by al baby (Hi Mom Its a Joke friends)
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To: dr_lew

We don’t know if repair work was done. CBS tried unsuccessfully to obtain maintenance records for the dam. The spillway worked just fine since 1968, so if any repairs were performed they didn’t meet specifications.

When this picture was taken in 2013 the spillway had not seen any water until March 2016 as evidenced by this video.

https://youtu.be/MRS_hirpYzU


52 posted on 02/19/2017 11:59:34 AM PST by Karl Spooner
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To: Navy Patriot

“Tiny bubbles” Are they implying that Lawrence Welk and his Champagne Band are the culprits?


53 posted on 02/19/2017 3:31:21 PM PST by GreyFriar (Spearhead - 3rd Armored Division 75-78 & 83-87)
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To: GreyFriar
“Tiny bubbles” Are they implying that Lawrence Welk and his Champagne Band are the culprits?

Or Don Ho?

54 posted on 02/19/2017 3:31:43 PM PST by dfwgator
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To: Navy Patriot

55 posted on 02/20/2017 2:21:53 PM PST by gunsequalfreedom
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To: Karl Spooner

Great find on that picture. That was the start of the problem.


56 posted on 02/20/2017 2:23:35 PM PST by gunsequalfreedom
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