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California's Lake Oroville Main Spillway Severly Damaged/Eroded.

 
#Geomagnetic_Storm#
"Amateur Meteorologist"

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02/07/2017 06:09 PM

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California's Lake Oroville Main Spillway Severly Damaged/Eroded.
The Spillway, not the Damn has suffered major Damage due to unexpected erosion. The flows have currently been halted. That is all the info I have read so far.


[link to www.actionnewsnow.com]

Picture of the Emergency Spillway Dam side:

[link to pixel-ca-dwr.photoshelter.com]

Updated picture of Spillway:

[link to m.imgur.com]

live webcam
[link to www.parks.ca.gov (secure)]

lake levels updated hourly;
[link to rdcfeeds.redding.com]
 Quoting: USA480


New Spillway damage pictures:

[link to mobile.twitter.com (secure)]

Last Edited by #Geomagnetic_Storm# on 03/27/2017 03:45 AM
LJM77

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02/07/2017 06:20 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
The Spillway, not the Damn has suffered major Daage due to unexpected erosion. The flows have currently been halted. That is all the info I have read so far.


[link to www.actionnewsnow.com]
 Quoting: #Geomagnetic_Storm#


A very wise man once told you that you would make this thread. wink
#Geomagnetic_Storm# (OP)
"Amateur Meteorologist"

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02/07/2017 06:21 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
The Spillway, not the Damn has suffered major Daage due to unexpected erosion. The flows have currently been halted. That is all the info I have read so far.


[link to www.actionnewsnow.com]
 Quoting: #Geomagnetic_Storm#


A very wise man once told you that you would make this thread. wink
 Quoting: LJM77


Lol.
Anonymous Coward
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02/07/2017 06:36 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
NOT GOOD!!

Water is going to back up QUICKLY ... and could lead to some major dam issues if they can't start releasing again:

from link:

"...The operators of Lake Oroville dam planned to increase the release of water at the dam to 70,000 cubic feet per second to make room in the lake for runoff from the current storm.

The peak release began around noon Tuesday. Thatís when witnesses said they began to see chunks of concrete coming off the spillway..."

To put that into perspective the NORMAL release that the Hoover Dam does into the Grand Canyon is 12,500 cubic feet per second!!


From Wikipedia:

"...Known as the second-largest reservoir in California, Lake Oroville is treated as a keystone facility within the California State Water Project by storing water, providing flood control, recreation..."

"...Oroville Dam is an earthen dam and is the tallest dam located in the United States, measuring over 770 feet (235 m) high and 6,920 feet (2109 m) across. The dam was the largest earth-fill dam in the world until succeeded by Aswan High Dam in Egypt. It was built by the California Department of Water Resources as part of the California State Water Project. The dam houses the Edward Hyatt Powerplant, an underground hydro-electric plant that was completed in 1967.[8] Six generators are used to provide a maximum generating capacity of 819 MW.///"

"...Storing over 3,500,000 acre feet (4.3 km3), it is the second-largest reservoir in California, after Shasta Lake..."
Anonymous Coward
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02/07/2017 06:55 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
NOT GOOD!!

Water is going to back up QUICKLY ... and could lead to some major dam issues if they can't start releasing again:

from link:

"...The operators of Lake Oroville dam planned to increase the release of water at the dam to 70,000 cubic feet per second to make room in the lake for runoff from the current storm.

The peak release began around noon Tuesday. Thatís when witnesses said they began to see chunks of concrete coming off the spillway..."

To put that into perspective the NORMAL release that the Hoover Dam does into the Grand Canyon is 12,500 cubic feet per second!!


From Wikipedia:

"...Known as the second-largest reservoir in California, Lake Oroville is treated as a keystone facility within the California State Water Project by storing water, providing flood control, recreation..."

"...Oroville Dam is an earthen dam and is the tallest dam located in the United States, measuring over 770 feet (235 m) high and 6,920 feet (2109 m) across. The dam was the largest earth-fill dam in the world until succeeded by Aswan High Dam in Egypt. It was built by the California Department of Water Resources as part of the California State Water Project. The dam houses the Edward Hyatt Powerplant, an underground hydro-electric plant that was completed in 1967.[8] Six generators are used to provide a maximum generating capacity of 819 MW.///"

"...Storing over 3,500,000 acre feet (4.3 km3), it is the second-largest reservoir in California, after Shasta Lake..."

 Quoting: Anonymous Coward 52154903


According to the latest news water is currently flowing into the lake at the rate of 130,000 cubic feet PER SECOND ... which works out to about 11,000+- acre feet per hour or currently 264,000+- acre feet PER DAY flowing into the lake.

I have not been able to locate how much water they can send through the electricity turbines, but with the large capacity, 819 MW, it is NOT insignificant.

As noted above the entire capacity of the lake is 3,500,000 acre feet, and after all the recent rains it is already WAY UP from it's low level from a couple of years ago (during one 3 day period in January it rose 45 feet!! even with the electric turbines running)

If they can't get the spillway back operating they could have some serious problems creep in rather quickly with this TALLEST DAM IN THE US!!!
#Geomagnetic_Storm# (OP)
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02/07/2017 06:59 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
Thanks for posting.
Crunch62
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02/07/2017 07:10 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
I'm about 15 miles downstream from the dam. CA DWR has been trying to maintain the elevation at around 850 feet (crest elevation is 900') for flood storage.

Even with the previous 50K CFS releases, the lake rose almost 10 feet in the past 24 hours. With the spillway shut down, it will rise even faster. Currently at 858 feet. 42 feet to go.

I'm having flashbacks to 1997, when they thought the dam was going to be overtopped by excessive inflow. It wasn't a fun time.
What the Hell?...
TheTruthMongerô

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02/07/2017 07:13 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
Karma for all the Hillary votes.

Shame.
Crunch62
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02/07/2017 07:15 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
Karma for all the Hillary votes.

Shame.
 Quoting: TheTruthMongerô


No Hillary votes in this vicinity. Trust me on that.
What the Hell?...
BRYinTX

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02/07/2017 07:15 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
OH HELL!!

Can this become ACTUAL doom?
the redeemable furry pete

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02/07/2017 07:18 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
I'm about 15 miles downstream from the dam. CA DWR has been trying to maintain the elevation at around 850 feet (crest elevation is 900') for flood storage.

Even with the previous 50K CFS releases, the lake rose almost 10 feet in the past 24 hours. With the spillway shut down, it will rise even faster. Currently at 858 feet. 42 feet to go.

I'm having flashbacks to 1997, when they thought the dam was going to be overtopped by excessive inflow. It wasn't a fun time.
 Quoting: Crunch62


Lived in Sacramento for years. They have some truly stupid people in charge. If I was you I'd take a vacation starting now.
Jesus loves me, this I know
for the bible tells me so


I furmly believe in life, liberty and the fursuit of happiness
the redeemable furry pete

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02/07/2017 07:19 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
OH HELL!!

Can this become ACTUAL doom?
 Quoting: BRYinTX


Oh yeah, has come close on too many occasions. And in the event of, only one way out, traffic will be a nightmare.
Jesus loves me, this I know
for the bible tells me so


I furmly believe in life, liberty and the fursuit of happiness
Westsail
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02/07/2017 07:20 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
photo of the damage:
[link to tribfox40.files.wordpress.com (secure)]
The most beautiful thing we can experience is the mysterious. It is the source of all true art and all science. He to whom this emotion is a stranger, who can no longer pause to wonder and stand rapt in awe, is as good as dead: his eyes are closed. -Albert Einstein
Anonymous Coward
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02/07/2017 07:24 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
Lake Oroville Dam water flow (daily) statistics along with lake level
(FULL is at 900' asl - at 850.85 yesterday)

[link to cdec.water.ca.gov]

On Feb 6, yesterday, the dam had 2,819,768 acre feet of water impounded, or about 700,000 acre feet below FULL capacity. (per news reports it was 82% full yesterday)

From the chart it appears that the Hydro part of the dam can process between 11,000 CFS to 20,000 CFS (sorry I can't be more precise at the moment). Remember, currently 130,000CFS is flowing into the lake with more to come from the recent rains.

We will know more tomorrow when we see how the flows were today and what the lake level is, keeping in mind the OUTFLOWS were basically shut down except for the Hydro outflow for 1/2 of today.

Good news article with a GREAT PICTURE of the problem with the spillway. Looks serious. Hopefully they can stablize it enough to get water flowing through it again.

[link to ww2.kqed.org (secure)]
Crunch62
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02/07/2017 07:25 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
I'm about 15 miles downstream from the dam. CA DWR has been trying to maintain the elevation at around 850 feet (crest elevation is 900') for flood storage.

Even with the previous 50K CFS releases, the lake rose almost 10 feet in the past 24 hours. With the spillway shut down, it will rise even faster. Currently at 858 feet. 42 feet to go.

I'm having flashbacks to 1997, when they thought the dam was going to be overtopped by excessive inflow. It wasn't a fun time.
 Quoting: Crunch62


Lived in Sacramento for years. They have some truly stupid people in charge. If I was you I'd take a vacation starting now.
 Quoting: the redeemable furry pete


According to the official flood maps, we would be OK in the case of a total failure...by about 1 1/2 miles. I'm not sure I trust that estimate. We'd only need to head east about 3 miles to substantially higher ground, but right now, that road is underwater from last night's rain.

Bother.
What the Hell?...
fred also

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02/07/2017 07:26 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
agent
Ranger alert!
Time to enact
Extreme Feng Shui
Anonymous Coward
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02/07/2017 07:26 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
you'd think they could just chopper in some cement and patch it good enough till something better can be done
the redeemable furry pete

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02/07/2017 07:28 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
I'm about 15 miles downstream from the dam. CA DWR has been trying to maintain the elevation at around 850 feet (crest elevation is 900') for flood storage.

Even with the previous 50K CFS releases, the lake rose almost 10 feet in the past 24 hours. With the spillway shut down, it will rise even faster. Currently at 858 feet. 42 feet to go.

I'm having flashbacks to 1997, when they thought the dam was going to be overtopped by excessive inflow. It wasn't a fun time.
 Quoting: Crunch62


Lived in Sacramento for years. They have some truly stupid people in charge. If I was you I'd take a vacation starting now.
 Quoting: the redeemable furry pete


According to the official flood maps, we would be OK in the case of a total failure...by about 1 1/2 miles. I'm not sure I trust that estimate. We'd only need to head east about 3 miles to substantially higher ground, but right now, that road is underwater from last night's rain.

Bother.
 Quoting: Crunch62


Do you remember when they almost lost Folsom dam? the Feds had to come in and fix it


So many problems running the nuclear power plant they had to shut it down
Jesus loves me, this I know
for the bible tells me so


I furmly believe in life, liberty and the fursuit of happiness
Anonymous Coward
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02/07/2017 07:29 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
No matter what you think,this is a dam problem!
BRYinTX

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02/07/2017 07:33 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
is there a nuclear power plant or reactor downstream from the dam?
fred also

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02/07/2017 07:34 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
"If dominant element is water, then use earth and highlight with wood and fire.
Do not use metal"

As elements should remain in balance
Quickly adding these above elements
Should dissipate the excess water

hf
Anonymous Coward
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02/07/2017 07:36 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
Thanks for the heads up. I live about 20 min drive in the hills above the reservoir, fortunately above, not below like most...
hiding
Anonymous Coward
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02/07/2017 07:37 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
is there a nuclear power plant or reactor downstream from the dam?
 Quoting: BRYinTX

No
Anonymous Coward
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02/07/2017 07:37 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
you'd think they could just chopper in some cement and patch it good enough till something better can be done
 Quoting: Anonymous Coward 23557933


Take a look at how DEEP that hole is from the one picture on the news link I posted above and here.

Then look at how much of the spillway has been ripped away!

This is DAM (NO pun intended) SERIOUS SHIT!!


[link to ww2.kqed.org (secure)]

-----------------

this thread NEEDS a definite pin ... at least until they can get things stabilized there.

PLEASE REQUEST A PIN !!


This is the tallest dam in the US ... and it is in REAL, not made up, TROUBLE!!
Crunch62
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02/07/2017 07:40 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
I'm about 15 miles downstream from the dam. CA DWR has been trying to maintain the elevation at around 850 feet (crest elevation is 900') for flood storage.

Even with the previous 50K CFS releases, the lake rose almost 10 feet in the past 24 hours. With the spillway shut down, it will rise even faster. Currently at 858 feet. 42 feet to go.

I'm having flashbacks to 1997, when they thought the dam was going to be overtopped by excessive inflow. It wasn't a fun time.
 Quoting: Crunch62


Lived in Sacramento for years. They have some truly stupid people in charge. If I was you I'd take a vacation starting now.
 Quoting: the redeemable furry pete


According to the official flood maps, we would be OK in the case of a total failure...by about 1 1/2 miles. I'm not sure I trust that estimate. We'd only need to head east about 3 miles to substantially higher ground, but right now, that road is underwater from last night's rain.

Bother.
 Quoting: Crunch62


Do you remember when they almost lost Folsom dam? the Feds had to come in and fix it


So many problems running the nuclear power plant they had to shut it down
 Quoting: the redeemable furry pete


I remember the Folsom problem. It seems they only fixed it a couple of years ago. My neighbor works for a large contractor that had part of the job.
What the Hell?...
Anonymous Coward
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02/07/2017 07:44 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
Updated info on how much water they can spill via the Hydro Power Plant ... I was WAY off above.

The Hydro Power Plant can ONLY spill out 5000 cfs of water(cubic feet per second) even as inflows into the lake are running about 130,000 cubic feet per second
BRYinTX

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02/07/2017 07:50 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
is there a nuclear power plant or reactor downstream from the dam?
 Quoting: BRYinTX

No
 Quoting: Anonymous Coward 71484121


possible greentard involvement to save the fishies?
Crunch62
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02/07/2017 07:50 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
Updated info on how much water they can spill via the Hydro Power Plant ... I was WAY off above.

The Hydro Power Plant can ONLY spill out 5000 cfs of water(cubic feet per second) even as inflows into the lake are running about 130,000 cubic feet per second
 Quoting: Anonymous Coward 52154903


I know there are 'river valves' in the base of the dam, but don't know if they are separate from the power plant flow.

I know one of these valves was damaged several years ago and read recently it still has not been repaired.
What the Hell?...
Astral Goat

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02/07/2017 07:51 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
Forgive my ignorance but what is A spillway? Dam runoff?
When it gets down to having to use violence, then you are playing the systemís game. The establishment will irritate you Ė pull your beard, flick your face Ė to make you fight. Because once theyíve got you violent, then they know how to handle you. The only thing they donít know how to handle is non-violence and humor.

-John Lennon
Crunch62
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02/07/2017 07:54 PM

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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
Forgive my ignorance but what is A spillway? Dam runoff?
 Quoting: Astral Goat


Yes. A spillway has gates to rapidly release water from a dam. They are able to be used only when the water level is nearing the top of the dam in most cases.
What the Hell?...
Anonymous Coward
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02/07/2017 07:57 PM
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Re: California's Lake Oroville Main Spillway Severly Damaged/Eroded.
Forgive my ignorance but what is A spillway? Dam runoff?
 Quoting: Astral Goat


The overflow spillway, which is really only the safe way to release excess water...
Otherwise erosion will occur rapidly leading to possible MAJOR STRUCTURAL FAILURE
hiding


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