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California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed

 
Anonymous Coward
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
[link to www.parks.ca.gov]
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Oro-Tard here, reporting for (watch) duty.
ruser
Grumpy
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06/08/2019 06:25 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Grout? Sounds good I admit. But....if water is coming from the lake...then it will build pressure up to the lake pressure at that depth. So, grouting near the lake might be a good idea, but grouting on the downhill side might just transfer a huge force to the “outside “ edge. Maybe grouting there might just blow out a chunk?
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
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DEVELOPING: PG&E will be shutting off power for more than 26,000 customers in several Northern California counties Saturday night because of dry and windy weather conditions and high fire danger - KRON

3:43 PM - 8 Jun 2019
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
hiding
Anonymous Coward
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
The Grout Wall if China!
Anonymous Coward
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
“GROUT EXPECTATIONS”
Anonymous Coward
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
If da dam dam with perfect laminar flow, was really in eminant danger, do you thing they be driving trucks around on it, building roads, drulling holes an shit?

No, theyy wouldnt


ON TIME
UNDER BUDGET

KIEWIT FTW!
Anonymous Coward
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
If da dam dam with perfect laminar flow, was really in eminant danger, do you thing they be driving trucks around on it, building roads, drulling holes an shit?

No, theyy wouldnt


ON TIME
UNDER BUDGET

KIEWIT FTW!
Anonymous Coward
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06/08/2019 07:09 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
OMFG you guys were right! They are pulling large slabs of 24 karat gold outta the spillway!!
Grumpy
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06/08/2019 07:10 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
So...any back up generators for mission critical systems? Wonder if they could even try to open gates...should they dare. Let’s hope there is no rain.
Grumpy
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Well, at least the weather has been completely normal everywhere in the country this year.
Grumpy
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Heck, anyone know if they can run the power plant without outside power? Nuclear power plants need outside power.
Crunch62

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06/08/2019 07:21 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Heck, anyone know if they can run the power plant without outside power? Nuclear power plants need outside power.
 Quoting: Grumpy 77710369


As I recall from 2017, outside power is required for the Hyatt Power PLant.

I believe that is why the shoo fly overhead power poles were installed when the original towers were removed.
What the Hell?...
Grumpy
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
I think you are correct. So very curious.
Grumpy
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Well....this might well be completely wrong. Have not looked myself. But, Hyatt, as in Hyatt hotels Hyatt? If so, one wonders where they built. Probably a completely different Hyatt.
Anonymous Coward
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06/08/2019 07:31 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Heck, anyone know if they can run the power plant without outside power? Nuclear power plants need outside power.
 Quoting: Grumpy 77710369


As I recall from 2017, outside power is required for the Hyatt Power PLant.

I believe that is why the shoo fly overhead power poles were installed when the original towers were removed.
 Quoting: Crunch62


IIRC, it's the other way around.

The turbines have to push an electrical load to pass water. Or else something breaks or fries up.
Grumpy
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06/08/2019 07:39 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
It gets actually kinda concerning. 10k cfs translates into maybe 2 feet a day in lake elevation. That needs more calculators to inform or refine. Inflows remain about 10k cfs right?
Grumpy
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06/08/2019 07:47 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Well...if they asked me...I would maybe say something like “No! Absolutely not! We do not shut the 10k cfs outflow! Are you daft? Been drinking? “
Grumpy
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06/08/2019 08:13 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
It maybe gets worse yet. What does wind do to melting snow? Hint, slows the melt is an incorrect answer
Anonymous Coward
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06/08/2019 08:16 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
It maybe gets worse yet. What does wind do to melting snow? Hint, slows the melt is an incorrect answer
 Quoting: Grumpy 77710369


So we got a ton of snow melt coming to lake Oroville?
Crunch62

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06/08/2019 08:21 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Heck, anyone know if they can run the power plant without outside power? Nuclear power plants need outside power.
 Quoting: Grumpy 77710369


As I recall from 2017, outside power is required for the Hyatt Power PLant.

I believe that is why the shoo fly overhead power poles were installed when the original towers were removed.
 Quoting: Crunch62


IIRC, it's the other way around.

The turbines have to push an electrical load to pass water. Or else something breaks or fries up.
 Quoting: Anonymous Coward 77013656


Don't the turbines need an external excitation current to produce output? Sorry, thinking of automotive alternators here. Surely, the turbines aren't simple dynamos with giant static magnets.
What the Hell?...
Anonymous Coward
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed


New California & The Oroville Dam Update - Paul Preston - 6/06/19

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Anonymous Coward
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06/08/2019 08:24 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Heck, anyone know if they can run the power plant without outside power? Nuclear power plants need outside power.
 Quoting: Grumpy 77710369


As I recall from 2017, outside power is required for the Hyatt Power PLant.

I believe that is why the shoo fly overhead power poles were installed when the original towers were removed.
 Quoting: Crunch62


IIRC, it's the other way around.

The turbines have to push an electrical load to pass water. Or else something breaks or fries up.
 Quoting: Anonymous Coward 77013656

Correct, without a sufficient electrical load they will overspeed and the turbine blades will stretch and twist and break or even explode from the rotational forces.
Grumpy
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06/08/2019 08:33 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Well....if the outflow really is cut to zero, and inflows maybe double cause of the wind...then the remote viewers Sunday into Monday might be right here. If I lived anywhere close by...I would be driving right now.
Grumpy
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06/08/2019 08:37 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
They dare not open the ms, assuming they could with no power, cause if all was even close to ok, the lake would be no greater than 850. The level the troubles began, just two years ago.
Grumpy
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06/08/2019 08:40 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
They said...850. until....whatever it is. That made them shut it down
Anonymous Coward
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
The great Mille Kay is in the chat!

[link to www.youtube.com (secure)]
Anonymous Coward
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Well, at least the weather has been completely normal everywhere in the country this year.
 Quoting: Grumpy 77710369


Not where I live
Hnry Bwmn

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06/08/2019 09:57 PM
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Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Heck, anyone know if they can run the power plant without outside power? Nuclear power plants need outside power.
 Quoting: Grumpy 77710369


As I recall from 2017, outside power is required for the Hyatt Power PLant.

I believe that is why the shoo fly overhead power poles were installed when the original towers were removed.
 Quoting: Crunch62


IIRC, it's the other way around.

The turbines have to push an electrical load to pass water. Or else something breaks or fries up.
 Quoting: Anonymous Coward 77013656


Don't the turbines need an external excitation current to produce output? Sorry, thinking of automotive alternators here. Surely, the turbines aren't simple dynamos with giant static magnets.
 Quoting: Crunch62


Yes, turbines need rotor excitation.
I'm a retired Turbine mechanic. The power input to the rotor is significant I might add.
I suspect they may be able to use power from one turbine output to energize the next, cascading down the line.
"Perhaps"

"Pissed Off Patriot"
Retired Union Millwright, Turbine Mechanic

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