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H.P. Hovercraft posted:the ACE were also found to have incompetently designed and constructed much of the nola floodworks, including even building levees to incorrectly low elevations Oh poo poo, have you seen the Harry Shearer doc? Is it in any sense accurate? e: Self quoting so you don't have to scroll back: Trig Discipline posted:I only realized this when the wife and I went to see Harry Shearer at the Alamo Drafthouse where he was presenting an entire documentary about how much (in his opinion) the ACoE had hosed New Orleans. I was like "whaaaaaaaa" but I was also kinda thinking about how fun it would be to ask him a serious question about it but then ask him to respond in Principal Skinner's voice and watch him get all mad.
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Aug 29, 2017 08:05
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Trig Discipline posted:Oh poo poo, have you seen the Harry Shearer doc? Is it in any sense accurate? no i need to get around to watching it - he does a shift for their local NPR affiliate and his narrator/radio voice is surprisingly annoying so i've been putting it off but i did happen to take the "hurricane engineering" senior design course at LSU right after katrina happened and then all of a sudden we gotta buncha dutch guest speakers when the prof who was the head of the hurricane center kept having to go before congress. definitely no love lost between those guys and the ACE, especially when Mr Go came up in their lectures whole lotta gnarly pictures too i have saved someplace
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Aug 29, 2017 08:15
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NBC meteorologist: https://twitter.com/BillKarins/status/902450000113930240
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Aug 29, 2017 08:39
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H.P. Hovercraft posted:did the ACE just armor the embankments and add some geotextile to hold everything in place or did they actually sink some sheet pile to prevent sand boils I don't believe they did trying to find the page I had a few hours ago that had their completed list of poo poo, it wasn't looking good but I do at least have this on hand  also they had plans to build new dam outlets that were to be completed in like 2018-2020 but uhhh also the new batman cartoon movie is ok
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Aug 29, 2017 08:42
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more bad news, Texans to be hit with new insurance law making it harder to win contested claims, just one week after Harvey Harvey victims have until Friday to file a claim, or deal with new regulations that may make insurance companies less responsive http://www.independent.co.uk/news/w...s-a7917346.html
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Aug 29, 2017 08:46
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Prester Jane posted:NBC meteorologist: https://twitter.com/BillKarins/status/902450000113930240 The rate of rise has been a straight line, even though the volume required for each additional foot keeps increasing. It's kind of surprising. They stopped reporting the volume (acre feet) here: 2017-08-29 01:30 CDT 178000 106.95 108 is supposed to be absolute full capacity at 201,000.
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Aug 29, 2017 08:46
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Two live feeds near the dam, http://www.ustream.tv/channel/JgyNETD3Xzs Which is at a Chevron gas station along the west side of the Dam, and another one closer to the spillway http://www.ustream.tv/channel/SPvAJLUahk2 (too dark to see right now)
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Aug 29, 2017 08:57
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lol here is the updated version of that pdf from aug 16, 2017 http://www.swg.usace.army.mil/Porta...8-21-155624-943
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Aug 29, 2017 09:00
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Atricks posted:Two live feeds near the dam, http://www.ustream.tv/channel/JgyNETD3Xzs Which is at a Chevron gas station along the west side of the Dam, and another one closer to the spillway http://www.ustream.tv/channel/SPvAJLUahk2 (too dark to see right now) Oh poo poo, ustream is still around.
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Aug 29, 2017 09:03
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This is the slowest thing ever
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Aug 29, 2017 09:04
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It won't stop loving raining holy poo poo
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Aug 29, 2017 09:04
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Addicks is at the top of the spillway. Barker is above the gauge structure and stopped reporting.
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Aug 29, 2017 09:18
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It is too dark still for the western camera on addicks to see anything, but soon comes the money shot, then everyone dies
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Aug 29, 2017 09:19
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Third World Reggin posted:lol If I'm reading this correctly, the work that was to be completed this year was just upgrading the gate and conduits (not yet functional), and doing patching and sealing on the existing gate and conduits. So, the structure they are using to dump the 4,000 cfs is in better shape and less likely to fail, but ultimately the work done so far appears to have done very little to protect against damage or failure from high water levels themselves. The work for the ends of the dam and the spillways is the "initiate section 216 study" slated for 2019 on their little chart.
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Aug 29, 2017 09:21
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XK posted:If I'm reading this correctly, the work that was to be completed this year was just upgrading the gate and conduits (not yet functional), and doing patching and sealing on the existing gate and conduits. So, the structure they are using to dump the 4,000 cfs is in better shape and less likely to fail, but ultimately the work done so far appears to have done very little to protect against damage or failure from high water levels themselves. yah, they did patch work in 2009 they decided the dam was a DSAC 1 which is bad but this was a plan to work on it The new outlets would of been started on soon and kept getting pushed back due to rain the image that shows the voids beneath the addicks dam was used in the other one and I really can't tell if that is after the work they did in 2012ish or something they just kept in there
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Aug 29, 2017 09:25
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Addicks is currently less than six inches from starting to overflow on the north end. Shouldn't be much more than 90 minutes at this point-depending on how precise the sensor is. Best I can find on the web is that water seems to be flowing into the Addicks at around 2600 acre-feet fer hour. Can some kind goon put that amount of water in perspective, as well as explain whether or not the upcoming uncontrolled release on the north end is likely to be enough to contain it? Prester Jane fucked around with this message at 09:35 on Aug 29, 2017 |
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Aug 29, 2017 09:33
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Prester Jane posted:acre-feet Dude you guys have weird measurement units 
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Aug 29, 2017 09:35
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I believe the voids were taken care of, and pumped full of stuff. The 2016 Houston Chronicle article that's been posted about the work they've been doing mentioned it being done, and it sounded like it was considered a high priority. I can only assume they did all voids, because any voids currently in there would be a big worry.
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Aug 29, 2017 09:35
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Prester Jane posted:Best I can find on the web is that water seems to be flowing into the Addicks at around 2600 acre-feet fer hour. Can some kind goon put that amount of water in perspective That's equivalent to a 1ft x 1ft column of water 43560 feet high, hth.
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Aug 29, 2017 09:37
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Prester Jane posted:Addicks is currently less than six inches from starting to overflow on the north end. Shouldn't be much more than 90 minutes at this point-depending on how precise the sensor is. Niagra falls flows 7,200 acre-feet an hour The spillway isn't a controlled release, it's a first-ditch effort at an uncontrolled release. It's a reinforced, designated area of first overflow It should be able to contain it, but it's questionable whether or not it will fail itself.
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Aug 29, 2017 09:37
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This is a youtube comment so take it with a grain of salt, don't know where to check it Jesus
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Aug 29, 2017 09:38
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Third World Reggin posted:lol All that urbanization over the watersheds.
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Aug 29, 2017 09:38
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Honj Steak posted:Dude you guys have weird measurement units No disagreements, but using that measurement makes sense in the American context. The majority of our water is used for agriculture, and agricultural space has always been measured here in acres. (I do not disagree with how stupid it is to keep things this way.) For our farmers measuring water by how much of it is required to cover one acre in 12 inches of water is very useful. However if you are used to a sane system like the metric system it must look like the daftest thing ever. Edit: Thanks for the responses. So basically about 1/3rd of Niagara falls is flowing into the Addicks at present. That is certainly something 
Prester Jane fucked around with this message at 09:42 on Aug 29, 2017 |
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Aug 29, 2017 09:39
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gonna go watch a movie hopefully I get back when the sun is coming up and the dams fail at the same time
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Aug 29, 2017 09:42
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Honj Steak posted:Dude you guys have weird measurement units 3207048 m³
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Aug 29, 2017 09:42
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Everyone in Houston should take a good hard look at this article before deciding how much faith and trust they want to put in the intelligence and planning abilities of the Harris County Flood Control quote:
http://www.houstonpress.com/news/harris-county-flood-control-doesnt-think-climate-change-or-growth-cause-flooding-9008747 Fruity Rudy fucked around with this message at 09:58 on Aug 29, 2017 |
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Aug 29, 2017 09:42
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Fruity Rudy posted:Everyone in Houston should take a good hard look at this article before deciding how much faith and trust they want to put in the intelligence and planning abilities of the Harris County Flood Control lmao america
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Aug 29, 2017 09:45
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Prester Jane posted:Addicks is currently less than six inches from starting to overflow on the north end. Shouldn't be much more than 90 minutes at this point-depending on how precise the sensor is. That's 32,000 cfs. Niagara Falls is about 85,000 cfs. Considering they're draining 4,000 cfs, there's actually about 36,000 cfs entering the reservoir. They're falling behind by 100,800,000 cubic ft, or 755 million gallons, which would weigh 6.3 trillion pounds, every single hour. The uncontrolled release is by definition not containing it. It will maintain the level in the reservoir as long as you have as much water as is trying to flow into the reservoir flowing out uncontrolled around the sides. That's a lot of water, and doesn't sound good. Nobody knows what the uncontrolled release is actually going to do. XK fucked around with this message at 09:51 on Aug 29, 2017 |
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Aug 29, 2017 09:48
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Jose posted:lmao america this forever
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Aug 29, 2017 09:50
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ephex posted:3207048 m³ That's more than two times the local lake where I am, in one hour, that actually helps! 
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Aug 29, 2017 09:50
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The largest current superankers hold 503,409,900 liters if that earlier figure is right, there is 3,207,000,000 liters flowing into addicks dam, that's 6.3 supertankers driving into the dam every hour. for it to not fail, 6.3 have to drive through downtown every hour.
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Aug 29, 2017 09:51
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Powershift posted:Niagra falls flows 7,200 acre-feet an hour The place where it flows out first is not concrete. It's grassy field.
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Aug 29, 2017 09:55
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This is north end of Addicks dam. The water goes around first. The concrete is only a cap on top. https://goo.gl/maps/6XvJb8PK5Vy
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Aug 29, 2017 09:58
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XK posted:The place where it flows out first is not concrete. It's grassy field. Yes, this. the is my understanding of things. The dam will start to overflow on the north side at 108 feet, overflow on the west side at 111 feet, and then at 112.5 feet the first actual reinforced auxiliary channel kicks in, located on the north side. There will already be 4.5 feet of water coming out the north side of the dam (into soft soil) by the time the first reinforced channel kicks in.
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Aug 29, 2017 10:00
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I found this to be helpful.
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Aug 29, 2017 10:06
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Why on earth is the spillway higher than the edges of the dam?
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Aug 29, 2017 10:07
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Toebone posted:Why on earth is the spillway higher than the edges of the dam? Because there were supposed to be three more phases built on to this system that Houston never bothered to get around to doing cuz 'merica.
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Aug 29, 2017 10:09
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Prester Jane posted:There will already be 4.5 feet of water coming out the north side of the dam (into soft soil) by the time the first reinforced channel kicks in. This is why I'm worried about it unzipping the earth works as soon as it flows around. Even coming over the concrete, that concrete cap on top is literally just a concrete cap on top. Calling that a spillway is generous. That's a road. 
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Aug 29, 2017 10:11
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Prester Jane posted:Because there were supposed to be three more phases built on to this system that Houston never bothered to get around to doing cuz 'merica. 
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Aug 29, 2017 10:12
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The date on that imagery of the "spillway" is 2017, so that's the current state of it. There's a reason professionals are worried and saying they don't really know what's going to happen. Going around the dam is cited in all the Army Core of Engineers reports as one of the primary risks.
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Aug 29, 2017 10:15
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