California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed | |
LJM77 User ID: 68978931 United States 02/07/2017 06:20 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 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. Quoting: #Geomagnetic_Storm# [link to www.actionnewsnow.com] A very wise man once told you that you would make this thread. |
#Geomagnetic_Storm# (OP) User ID: 68504352 United States 02/07/2017 06:21 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 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. Quoting: #Geomagnetic_Storm# [link to www.actionnewsnow.com] A very wise man once told you that you would make this thread. Lol. |
Anonymous Coward User ID: 52154903 United States 02/07/2017 06:36 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 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. That’s 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 User ID: 52154903 United States 02/07/2017 06:55 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 NOT GOOD!! Quoting: Anonymous Coward 52154903 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. That’s 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..." 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) User ID: 70684744 United States 02/07/2017 06:59 PM Report Abusive Post Report Copyright Violation | |
Crunch62 User ID: 73789306 United States 02/07/2017 07:10 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 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. I've been married so long, I don't even look both ways when I cross the street. |
TheTruthMonger™ User ID: 72738806 United States 02/07/2017 07:13 PM Report Abusive Post Report Copyright Violation | |
Crunch62 User ID: 73789306 United States 02/07/2017 07:15 PM Report Abusive Post Report Copyright Violation | |
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the redeemable furry pete User ID: 73857076 United States 02/07/2017 07:18 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 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. Quoting: Crunch62 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. Lived in Sacramento for years. They have some truly stupid people in charge. If I was you I'd take a vacation starting now. "It's a friendly friendly world" (Andy Kaufman) Calm seas do not a sailor make, Nor easy horses, a horseman. And Jesus was a sailor when he walked upon the water And he spent a long time watching from his lonely wooden tower and when He could be certain only drowning men could see Him- Leonard Cohen |
the redeemable furry pete User ID: 73857076 United States 02/07/2017 07:19 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 Oh yeah, has come close on too many occasions. And in the event of, only one way out, traffic will be a nightmare. "It's a friendly friendly world" (Andy Kaufman) Calm seas do not a sailor make, Nor easy horses, a horseman. And Jesus was a sailor when he walked upon the water And he spent a long time watching from his lonely wooden tower and when He could be certain only drowning men could see Him- Leonard Cohen |
Westsail Metta User ID: 71050035 United States 02/07/2017 07:20 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 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 User ID: 52154903 United States 02/07/2017 07:24 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 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 User ID: 73789306 United States 02/07/2017 07:25 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 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. Quoting: Crunch62 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. Lived in Sacramento for years. They have some truly stupid people in charge. If I was you I'd take a vacation starting now. 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. I've been married so long, I don't even look both ways when I cross the street. |
fred also User ID: 64911190 Australia 02/07/2017 07:26 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 23557933 United States 02/07/2017 07:26 PM Report Abusive Post Report Copyright Violation | |
the redeemable furry pete User ID: 73857076 United States 02/07/2017 07:28 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 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. Quoting: Crunch62 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. Lived in Sacramento for years. They have some truly stupid people in charge. If I was you I'd take a vacation starting now. 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. 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 "It's a friendly friendly world" (Andy Kaufman) Calm seas do not a sailor make, Nor easy horses, a horseman. And Jesus was a sailor when he walked upon the water And he spent a long time watching from his lonely wooden tower and when He could be certain only drowning men could see Him- Leonard Cohen |
Anonymous Coward User ID: 1130358 United States 02/07/2017 07:29 PM Report Abusive Post Report Copyright Violation | |
BRYinTX User ID: 73481644 France 02/07/2017 07:33 PM Report Abusive Post Report Copyright Violation | |
fred also User ID: 64911190 Australia 02/07/2017 07:34 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 Do not use metal" As elements should remain in balance Quickly adding these above elements Should dissipate the excess water |
Anonymous Coward User ID: 71484121 United States 02/07/2017 07:36 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 71484121 United States 02/07/2017 07:37 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 52154903 United States 02/07/2017 07:37 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 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 User ID: 73789306 United States 02/07/2017 07:40 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 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. Quoting: Crunch62 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. Lived in Sacramento for years. They have some truly stupid people in charge. If I was you I'd take a vacation starting now. 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. 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 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. I've been married so long, I don't even look both ways when I cross the street. |
Anonymous Coward User ID: 52154903 United States 02/07/2017 07:44 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 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 User ID: 73481644 France 02/07/2017 07:50 PM Report Abusive Post Report Copyright Violation | |
Crunch62 User ID: 73789306 United States 02/07/2017 07:50 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 Updated info on how much water they can spill via the Hydro Power Plant ... I was WAY off above. Quoting: Anonymous Coward 52154903 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 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. I've been married so long, I don't even look both ways when I cross the street. |
Anonymous Coward User ID: 70975244 United States 02/07/2017 07:51 PM Report Abusive Post Report Copyright Violation | |
Crunch62 User ID: 73789306 United States 02/07/2017 07:54 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 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. I've been married so long, I don't even look both ways when I cross the street. |
Anonymous Coward User ID: 71484121 United States 02/07/2017 07:57 PM Report Abusive Post Report Copyright Violation | |