California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed | |
Anonymous Coward User ID: 21174928 United States 03/22/2017 11:45 PM Report Abusive Post Report Copyright Violation | |
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Lily o' the Valley User ID: 74341939 United States 03/22/2017 11:50 PM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed Don't look now, but Shasta is a lot closer to spilling, than Oroville...and is rising at a pretty regular clip: Quoting: Anonymous Coward 71066225 [link to cdec.water.ca.gov] San Luis dam is almost full as well [link to cdec.water.ca.gov] Again. We've been here before, haven't we? Last Edited by Lily o' the Valley on 03/22/2017 11:52 PM *** Good deeds bring rewards, bad actions bring troubles. That is a law of the universe. *** |
Anonymous Coward User ID: 35799703 United States 03/22/2017 11:53 PM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed |
Anonymous Coward User ID: 52154903 United States 03/23/2017 12:06 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed I am worried about 3 things .... 1) Erosion of the underside of the main spillway .... (the fact that they bolted down even the TOP PART of the main spillway indicates to me that their are stability problems throughout that entire structure) 2) Structural integrity of the MS control structure at the top of the spillway AND MOST OF ALL 3) Seepage through the main part of the Dam itself. ....(you will note that they have not allowed out ANY information about the internal seepage through the dam AND whether that seepage has gone UP above historic norms!! - If it had NOT gone up above historic norms then you could be sure they would have been trumpeting that info DAILY from newly installed loudspeakers on top of the dam ... but their SILENCE on this issue is DEAFENING!! - as Sherlock Holmes would have noted ... it is the dog that did NOT bark that sometimes is the most important clue) Remember ... the one offhanded comment made about 3 weeks ago by a worker to someone who posted here about the dam itself SHUDDERING (or something to that effect) |
Crunch62 User ID: 74446501 United States 03/23/2017 12:09 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed so i have this picture in my head that they've got guys making the rounds checking cracks and seepage all over the Dam 24/7. that's problably a bit of an exaggeration . but it makes for thrilling reading. Actually, they do to some extent, judging by what I am hearing. There are observers that report in to 'EM COM' every 15 minutes. Depending on who is running the command at any given time, they will report either by station name or station number. Typically, I am hearing reports from 'Plunge Pool', 'Diversion Dam', 'Oro Road', 'FCO' and 'Rover Team'. Right now, they are reporting as 'Station 1', Station 2, etc. The observers seem to operate in 12-hour shifts, as do the 'EM COM' people. I have also heard other call signs occasionally, such as 'Geology' and 'Core Block'. They do have people all over the site reporting any changes in conditions. What the Hell?... |
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Crunch62 User ID: 74446501 United States 03/23/2017 12:19 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed If you look at a sat image of the dam and zoom in, you can see the entrances to the various galleries on the downstream face. I see one on the left abutment and one on the right abutment, as well as a couple in the center. Would I go in there to feel the dam shuddering? Hell no. What the Hell?... |
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Randy2012 User ID: 46215756 United States 03/23/2017 12:42 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed |
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Crunch62 User ID: 74446501 United States 03/23/2017 01:14 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed Makes me wonder if those anchor bolts sticking up on the upper spillway would create additional "shuddering" as the water hits them at 40,000 cfs. If so how bad would it get if they had to go higher due to a large inflow? Quoting: Randy2012 From an armchair engineer's point of view, those exposed bolt heads will certainly create turbulence in the water flow. That turbulence will lead to cavitation, resulting in erosion of the spillway deck. What the Hell?... |
UseLessRepEATER Those who know the least obey the best: G.F. User ID: 74229306 United States 03/23/2017 03:29 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed "Capacity" would be Acre Feet, or Gallons, or such. the word "Elevation" in the context of these types of discussions is always "height above Sea Level". Shasta Dam is 602 feet high (above the ground). Shasta Dam's Elevation is 1167 feet above Sea Level. (and we can only presume that means to the top of the Dam.) So, using basic math, it's roughly 75 pct full? Shasta capacity is about 4.5 Million Acre-Feet. Currently at about 3.6 Million AF. [link to cdec.water.ca.gov] Real Eyes, Realize, Real Lies..... Every normal man must be tempted, at times, to spit on his hands, hoist the black flag, and begin slitting throats. ~H. L. Mencken~ We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light. ~Plato~ When a well-packaged web of lies has been sold gradually to the masses over generations, the truth will seem utterly preposterous and its speaker a raving lunatic. ~Dresden James~ |
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Anonymous Coward User ID: 74536549 Canada 03/23/2017 09:55 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed 8AM: Quoting: Anonymous Coward 71066225 Elevation: 848.26 Outflows: 45,263 Inflows: 41,249 River Rel.: 45,549 This inflows do seem a bit too regular and regulated to me, to be naturally occurring. I think they are probably manipulating the upstream dams. Of course they are, they are using every tool currently available to them, they are not stupid. |
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Anonymous Coward User ID: 74246783 United States 03/23/2017 10:11 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed It doesn't look like we're gonna get to the 835 by Friday. It isn't raining that hard, on and off here for awhile. I'm not sure why they lifted the "advisory & warning", seems they should have waited till run-off season is over. But I suppose they don't do any good anyways by now. |
NTimes User ID: 73787429 Canada 03/23/2017 10:18 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed ... Quoting: freddie 0 well, i've been speculating that there is something wrong with the Gate Assembly, but there is no solid information to go on yet. Cracks in the concrete structure have been documented in the inspections over the past several years, along with concerns about the gate tendons (whatever those are). We can see there is at least one gate (#2?) that is not sealing, based upon photos and videos. Supposedly, the inflatable seals on the gates were just overhauled according to the reports. More maintenance failure, I guess. I doubt they would be trying to affect repairs on the chute currently, with 40K+ CFS flowing through the gates. That would seem to be a suicide mission. so you are saying that the long horizontal concrete beam that i call "The Gate Assembly Footing" has cracks in it? holy shit. . Look at the photos in this 2016 inspection report. [link to www.documentcloud.org (secure)] Wow! Hey, hey, hey, hey-now. Don't be mean; we don't have to be mean, cuz, remember, no matter where you go, there you are. - Buckaroo Banzai: |
Anonymous Coward User ID: 74246783 United States 03/23/2017 10:19 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed I am worried about 3 things .... Quoting: Anonymous Coward 52154903 1) Erosion of the underside of the main spillway .... (the fact that they bolted down even the TOP PART of the main spillway indicates to me that their are stability problems throughout that entire structure) 2) Structural integrity of the MS control structure at the top of the spillway AND MOST OF ALL 3) Seepage through the main part of the Dam itself. ....(you will note that they have not allowed out ANY information about the internal seepage through the dam AND whether that seepage has gone UP above historic norms!! - If it had NOT gone up above historic norms then you could be sure they would have been trumpeting that info DAILY from newly installed loudspeakers on top of the dam ... but their SILENCE on this issue is DEAFENING!! - as Sherlock Holmes would have noted ... it is the dog that did NOT bark that sometimes is the most important clue) Remember ... the one offhanded comment made about 3 weeks ago by a worker to someone who posted here about the dam itself SHUDDERING (or something to that effect) I agree with all 3 of these concerns... and add 4th--an EQ, even a "small" EQ that might cause any shift or slide! Goes unsaid I suppose after thinking about it... |
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Anonymous Coward User ID: 74246783 United States 03/23/2017 10:34 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed i think Trump should give California to the Chinese Quoting: Anonymous Coward 74521141 as payment for our $20 Trillion Dollar Debt (including the people.) Brilliant idea. A five star comment. I believe Jerry Brown has already done that. It is reported he has a "state" office in China, Whatever that means. Keep in mind though that 26 of the 58 counties voted red. It's the 4 main counties with large populations, SF, LA, San Diego & and San Jose/Santa Clara (Silicon Valley) that are always out there making the rest of us look like jackals. Nevertheless, there are military bases far and wide in CA. Obviously coastal as well. The Fed would NEVER let CA leave, I think they have other plans to resolve differences. That's why this "basin" flood would benefit Jerry & co-horts. Silicon Valley/Hollywood/SF having been doing everything they can over the last 15 years to push us rural poor people out of the state (75,000 have left for Texas & Oregon alone in the last 5 years. They want to all the prime property & weather and bring in Mexican slave labor & and India techies to serve them as the wealthiest make CA weather, mountains, oceans & wildlife their own backyard playground state. |
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Anonymous Coward User ID: 24518639 United States 03/23/2017 10:39 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed It doesn't look like we're gonna get to the 835 by Friday. It isn't raining that hard, on and off here for awhile. I'm not sure why they lifted the "advisory & warning", seems they should have waited till run-off season is over. But I suppose they don't do any good anyways by now. Quoting: Anonymous Coward 74246783 I'm guessing that they'll keep the MS running until they reach 835', no matter what the date is. Unless a problem develops that necessitates an immediate stoppage. And, just like a gradual release of water was necessary, I'm sure closing the gates can't happen quickly. |
Anonymous Coward User ID: 73141989 United States 03/23/2017 10:39 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed ... Quoting: Crunch62 Cracks in the concrete structure have been documented in the inspections over the past several years, along with concerns about the gate tendons (whatever those are). We can see there is at least one gate (#2?) that is not sealing, based upon photos and videos. Supposedly, the inflatable seals on the gates were just overhauled according to the reports. More maintenance failure, I guess. I doubt they would be trying to affect repairs on the chute currently, with 40K+ CFS flowing through the gates. That would seem to be a suicide mission. so you are saying that the long horizontal concrete beam that i call "The Gate Assembly Footing" has cracks in it? holy shit. . Look at the photos in this 2016 inspection report. [link to www.documentcloud.org (secure)] Wow! From that report....what does "seepage at joints in the bypass gallery" mean? |
Anonymous Coward User ID: 24518639 United States 03/23/2017 10:42 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed ... Quoting: freddie 0 so you are saying that the long horizontal concrete beam that i call "The Gate Assembly Footing" has cracks in it? holy shit. . Look at the photos in this 2016 inspection report. [link to www.documentcloud.org (secure)] Wow! From that report....what does "seepage at joints in the bypass gallery" mean? I asked that very question last night and never got an answer. Maybe someone in the morning crew will now an answer. |
Anonymous Coward User ID: 29338205 United States 03/23/2017 10:51 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed i think Trump should give California to the Chinese Quoting: Anonymous Coward 74521141 as payment for our $20 Trillion Dollar Debt (including the people.) Brilliant idea. A five star comment. That may be viewed as an insult to the Chinese. Amerika hates Kalifornia. It would be like trading garbage for an obscene amount of money. Cut this bullshit about it being garbage. Folks might hate the silly-assed CA politics, but the state itself is without question the most beautiful and varied land in the US. |
Anonymous Coward User ID: 35799703 United States 03/23/2017 10:55 AM Report Abusive Post Report Copyright Violation | Re: California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed It doesn't look like we're gonna get to the 835 by Friday. It isn't raining that hard, on and off here for awhile. I'm not sure why they lifted the "advisory & warning", seems they should have waited till run-off season is over. But I suppose they don't do any good anyways by now. Quoting: Anonymous Coward 74246783 I'm guessing that they'll keep the MS running until they reach 835', no matter what the date is. Unless a problem develops that necessitates an immediate stoppage. And, just like a gradual release of water was necessary, I'm sure closing the gates can't happen quickly. there no way they will be closing the gates for a long time now. and, since the the MS is still weak and damaged, they can't run the MS at more that 45,000 CFS, so, soon the Lake will be overtopping the ES as well. |