Risk of catastrophic Hanford tunnel collapse prevented as tunnel is stabilised
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Radioactive waste tunnel at Hanford stabilized after fears of a possible ‘catastrophic’ collapse, Tri City Herald, BY ANNETTE CARY, APRIL 29, 2019 The second Hanford PUREX plant tunnel storing highly radioactive waste has been stabilized to prevent a collapse.
Work to fill the tunnel with concrete-like grout began in early October and was completed at the end of last week. Local government officials are relieved. “We experienced a horrible winter with a massive amount of snow,” said Pam Larsen, executive director of Hanford Communities, a coalition of local governments, at a recent meeting of the Hanford Advisory Board. “The tunnel could have collapsed,” she said. “It would have been catastrophic for our regional economy.” Concerns about the second PUREX tunnel were raised after the first tunnel partially collapsed in spring 2017. An unusually wet winter may have contributed to the collapse. Filling the second tunnel with grout is a temporary measure to prevent a possible collapse and release of radioactive particles into the air, with plans to clean up the waste in the tunnel to be made in the future…… About 40,000 cubic yards of grout, or 4,000 truckloads, were needed to fill the tunnel, which is 1,700 feet long. It holds 28 rail cars loaded with obsolete and failed equipment that is contaminated with highly radioactive waste from the past production of plutonium at Hanford for the nation’s nuclear weapons program. When the first tunnel partially collapsed, thousands of Hanford workers were ordered to take cover and the Tri-Cities-area anxiously waited for information until it was determined that there had been no release of radioactive particles. The soil topping the tunnel fell into the breach, covering the waste……. Hanford watchdogs were concerned that grouting might become a permanent solution, with the radioactive waste left in the ground permanently. “Opponents raised legitimate concerns, but in the end those concerns did not outweigh the potential environmental and safety threats that could have been posed had the tunnel collapsed and exposed its highly radioactive contents,” Ecology officials said in a statement Monday….. In both tunnels, grout was added in layers, with each layer allowed to set before the next layer was added. But the second tunnel was five times longer, requiring changes to procedures and equipment as grout was added every 100 feet along the tunnel…….https://www.tri-cityherald.com/news/local/hanford/article229789389.html |
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All Japan’s nuclear reactors may shutdown, as regulator is firm on safety measures
……. Japan has struggled to restart its reactors in the face of strong public opposition and many are still offline. As of March 15, nine out of Japan’s 57 reactors had restarted. Several others have restarted only to shut down again because of injunctions issued by local courts.
……. the national government has not pushed for restarts, leaving it in the hands of regulators, utilities, courts and local politicians. The long-term future of the sector is therefore in doubt. https://www.ft.com/content/1b2c395e-6724-11e9-9adc-98bf1d35a056
Japan now has 9 operating nuclear reactors, all may close, due to inadequate safety measures
Nine reactors are currently online at five nuclear plants across the nation, and these are unlikely to have the necessary facilities completed before their deadlines. Consequently, it is possible that, one by one, these reactors will have to suspend operations.
NRA Chairman Toyoshi Fuketa emphasized the nuclear watchdog’s tough stance at a press conference Wednesday.
Reactors will be considered “nonconforming with required standards at the point the deadline passes,” Fuketa said.
“Overlooking any state of incompatibility would, in light of the authority’s position, be totally unacceptable,” he said.
The operators are required to build facilities from which nuclear reactors can be remotely controlled in the event of an emergency, such as an aircraft being deliberately flown into the plants. Installing such a facility became mandatory under new regulations introduced after the March 2011 accident at Tokyo Electric Power Company Holdings, Inc.’s Fukushima No. 1 nuclear power plant.
The Nuclear Reactor Regulation Law stipulates nuclear plants that do not meet certain conditions can be suspended from operating, but no decision had been made on how authorities would handle reactors currently online if the deadline for completing the emergency facility passes…….
Fuketa lobbed some stinging criticism at the utilities for the current situation.
“Not only were they overly optimistic about the construction work schedules, but they also were too optimistic about the reaction from the regulatory authorities,” Fuketa said. “They were grossly mistaken if they thought they might find a way through by asking for an extension when the deadline is drawing close.”
n a comment issued the same day, Kyushu Electric, Kansai Electric and Shikoku Electric said they would “continue making maximum efforts” to complete the facilities as soon as possible.
Profits could be hit
Halting the operation of nuclear reactors, which generate electricity at relatively low cost, could harm the earnings of power utilities and strike a major blow to their business performance.
Kyushu Electric is the utility facing the shortest deadline until it might have to switch off a reactor. Kyushu Electric’s No. 1 unit at the Sendai nuclear power plant was restarted in October 2015, which returned the company to profitability. Unplugging this reactor again would significantly affect the utility’s business performance……..https://www.thejakartapost.com/news/2019/04/26/japan-nuclear-plants-threatened-with-closure-over-antiterrorism-measures-.html
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Europe’s oldest nuclear reactors: safety problem at Hunterston B
Cracks found in nuclear reactor that could lead to the full evacuation of Edinburgh and Glasgow, edinburgh live, 26 Apr 19,The Hunterston B reactors in Ayrshire are the oldest in Europe, and dangerous cracks have been found, The two reactors at Hunterston B nuclear power plant near Ardrossan are 43 years old – the oldest in Europe.They’re already well beyond their operating lifetimes, which have twice been extended by EDF Energy, and they’re scheduled to close down for good in 2023.
“In the very worst case the hot graphite core could become exposed to air and ignite leading to radioactive contamination of…the metropolitan areas of Glasgow and Edinburgh.”The reactors have been closed since October 2018 as a result, but owners EDF Energy are currently making a case for turning them back on, with help from trade union GMB. Although the probability of a meltdown is still low, the consequences could be incredibly severe. In such an event, both Glasgow and Edinburgh would need to be entirely evacuated due to radioactive contamination. According to Dr Ian Fairlie, an independent consultant on radioactivity in the environment, and Dr David Toke, Reader in Energy Policy at the University of Aberdeen, the two reactors definitely should not be restarted. Speaking about the cracks in the barrels, they say: “This is a serious matter because if an untoward incident were to occur – for example an earth tremor, gas excursion, steam surge, sudden outage, or sudden depressurisation, the barrels could become dislodged and/or misaligned. “These events could in turn lead to large emissions of radioactive gases. Further, if hot spots were to occur and if nuclear fuel were to react with the graphite moderator they could lead to explosions inside the reactor core. “In the very worst case the hot graphite core could become exposed to air and ignite leading to radioactive contamination of large areas of central Scotland, including the metropolitan areas of Glasgow and Edinburgh.” ….. The operational limit for the latest period of operation was 350 cracks but an inspection found that allowance had been exceeded.https://www.edinburghlive.co.uk/news/edinburgh-news/cracks-found-nuclear-reactor-could-15944122?fbclid=IwAR02Y5JATa8g9RAlmeuO1dLy2XInrIKdtKP7lbb4DBkYmls_AjMjJMkniWs |
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Japan’s nuclear regulators not impressed by nuclear facilities’ flimsy excuses about safety
VOX POPULI: Flimsy excuses by nuclear plant operators are unacceptable, Vox Populi, Vox Dei is a daily column that runs on Page 1 of The Asahi Shimbun., April 26, 2019 …………. three operators of nuclear power plants, seeking an extension of a very different kind of deadline, found the Nuclear Regulation Authority to be quite unforgiving.Kansai Electric Power Co., Shikoku Electric Power Co. and Kyushu Electric Power Co. were initially required to install anti-terror facilities against airborne attacks at their nuclear power plants by July 2018.
Having already failed to meet that deadline, the utilities on April 17 asked the government’s nuclear watchdog to extend it by another 12 to 30 months, but the plea was rejected on April 24.
The utilities have insisted in unison that installing facilities to remotely cool nuclear reactors would require the time-consuming work of drilling through mountains.
They probably thought this “excuse” was good enough to sway the government into extending the deadline.
No such luck.
The Sendai nuclear power plant in Kagoshima Prefecture will likely be shut down as a result, according to the NRA.
The utilities must be underestimating the odds of any of their nuclear power plants being targeted for a terrorist attack.
Have they already forgotten that North Korea was repeatedly test-launching its missiles until recently? And what about the Fukushima disaster of 2011, which occurred because virtually nobody wanted to consider the possibility of a mega-quake triggering a tsunami?
The “deadline” book mentioned above also contains an anecdote about author Akira Yoshimura (1927-2006), a stickler for punctuality who always handed in his manuscripts early, claiming he had a tendency to start panicking as the deadline approached. And he always attached a note to his editor, apologizing, in effect, for jumping the gun.
I guess it’s useless to expect the three utilities to emulate Yoshimura. http://www.asahi.com/ajw/articles/AJ201904260032.html
Japan’s nuclear regular demands safety steps, or reactors must close down
Japan to shut down nuclear plants if counterterror steps not taken in time, Japan Times, KYODO, AFP-JIJI, REUTERS, APR 24, 2019
Japan’s nuclear regulator decided Wednesday not to let power companies operate reactors if they fail to install sufficient counterterrorism measures by specified deadlines.
The decision by the Nuclear Regulation Authority came after three utilities that operate five nuclear plants in western and southwestern Japan requested that their deadlines be extended as they expect delays in completing counterterrorism steps required under stricter regulations introduced in 2013 following the Fukushima nuclear crisis.
Kyushu Electric Power Co., Kansai Electric Power Co. and Shikoku Electric Power Co. had sought to postpone their five-year deadlines by one to three years, citing reasons such as the need to carry out massive construction work.
The three companies told the NRA that the measures would not be on time at 10 of their reactors, according to documents published on the regulator’s website.
But the regulator has declined their requests for extensions.
The power plant operators are required to build facilities that can keep reactors cool via remote control and prevent the massive release of radioactive materials if the units are the target of a terrorist attack, such as from planes being flown into them.
Nuclear plant operators need to set up such facilities within five years of the nuclear safety watchdog approving detailed construction plans for the plants.
But several firms have warned they will not meet these criteria. The NRA said after a meeting earlier Wednesday it would no longer push back the deadline as it has done in the past.
“There is no need to extend the deadline, and nuclear facilities have to stop operations if the operators fail to meet it,” an NRA official said.
He added that several other reactors were also at risk of being shut down……… https://www.japantimes.co.jp/news/2019/04/24/business/corporate-business/japan-halt-nuclear-plants-operations-anti-terrorism-steps-not-taken-time/#.XMDXGDAzbGg
A dangerous mix – LSD drugs and sailors on nuclear aircraft carriers
This can’t be good.
A sailor assigned to the nuclear reactor department aboard the USS Ronald Reagan admitted to bringing LSD aboard the aircraft carrier, Navy Times reports.
In a copy of a plea deal obtained by Navy Times, Machinist’s Mate (Nuclear Power) 3rd Class Philip S. Colegrove said he “wrongfully” brought the powerful hallucinogen aboard the Reagan while docked at various ports across Japan, as though there’s a right way to bring acid into the heart of a nuclear-powered warship.
The recent guilty pleas from Colegove and Electrician’s Mate (Nuclear Power) 2nd Class Sean M. Gevero bring the total number of Reagan nuclear reactor sailors disciplined in connection to “LSD abuse” aboard the Reagan to four, per Navy Times. A fifth is currently awaiting an Article 32 hearing
Ten other sailors, all from the same department, already faced administrative discipline last year for possessing and distributing LSD in connection to a drug ring aboard the nuclear aircraft carrier
The prevalence of LSD in a critical nuclear-related facility is surprisingly not confined to the Navy: In May 2018, 14 airmen from the Air Force security units at F.E. Warren Air Force Base in Wyoming tasked with safeguarding nuclear missile silos were disciplined for dropping acid between shifts.
But the fact that these LSD rings popped up in the first place isn’t surprising at all. As I previously wrote, the middle of nowhere is the same kind of boring and awful whether it’s patrolling the Pacific or guarding nuclear silos in America’s heartland.
Anyway, if anyone has any insights into the right way to bring LSD into your (potentially radioactive) place of work, give me a shout — for, uh, science.
in the 1980s entrepreneurs jumped on the nuclear bunker selling campaign
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China gambles on untested “Hualong One” nuclear reactor, and plans for international sales
China goes all-in on home grown tech in push for nuclear dominance, David Stanway, SHANGHAI (Reuters)17 Apr 19 – China plans to gamble on the bulk deployment of its untested “Hualong One” nuclear reactor, squeezing out foreign designs, as it resumes a long-delayed nuclear program aimed at meeting its clean energy goals, government and industry officials said.
China, the world’s biggest energy consumer, was once seen as a “shop window” for big nuclear developers to show off new technologies, with Beijing embarking on a program to build plants based on designs from France, the United States, Russia and Canada. But after years of construction delays, overseas models such as Westinghouse’s AP1000 and France’s “Evolutionary Pressurised Reactor” (EPR) are now set to lose out in favor of new localized technologies, industry experts and officials said. ……….Though China has yet to complete its first Hualong One, officials are confident it will not encounter the delays suffered by rivals, and say it can compete on safety and cost. Beijing has already decided to use the Hualong One for its first newly commissioned nuclear project in three years, set to begin construction later this year at Zhangzhou, a site originally earmarked for the AP1000. [nL3N2152KM] ……… EDF, France’s state-run utility, which helped build the EPR project at Taishan in Guangdong province, declined to comment. Westinghouse, now owned by Brookfield after entering bankruptcy restructuring, also did not respond to a request for comment. INTERNATIONAL AMBITIONSChina’s ambitions for the Hualong One extend overseas as well. The first foreign project using the reactor is under construction in Pakistan and the model is in the running for projects in Argentina and Britain……..https://www.reuters.com/article/us-china-nuclearpower-hualong/china-goes-all-in-on-home-grown-tech-in-push-for-nuclear-dominance-idUSKCN1RT0C0 |
EDF’s Belleville nuclear power plant to continue to have increased monitoring by France’s nuclear regulator
The regulator placed the plant under enhanced supervision in September 2017, citing failures in safety standards. It noted that the state of the plant’s installations and safety practices had generally improved in 2018, but there was still work to do. “However… the progress noted remains to be consolidated and that the performance of the facilities must still improve,” the ASN said in a statement. The ASN also said it will carry out additional inspections and checks to documentation, while keeping track of EDF’s action plan to fix the issues. (Reporting by Bate Felix; Editing by Sudip Kar-Gupta) |
Protect and Survive – 1970’s UK Public infommercials On Nuclear War Preparation
RADIOACTIVE FALLOUT & FALLOUT IN THE AFFECTED AREA BRITISH CIVIL DEFENSE FILM 72592 https://www.youtube.com/watch?v=1xjX_aoRUTQ
BRITONS were told to “stay indoors” as “no place in the United Kingdom is safe” from the deadly threat of a nuclear bomb striking the nation during a broadcast intended to educate the population.
Chilling video footage reveals how the UK was seriously preparing for a nuclear attack from the Soviet Union more than 40 years ago. It came as part of the “Protect and Survive” guide that was handed out during Margaret Thatcher’s Government during the Cold War in the late Seventies and early Eighties. Its purpose was to advise the public on how to act in the event of an imminent nuclear threat.
One part of a video, which was broadcasted on state TV, discussed nuclear fallout – the residual radioactive material propelled into the upper atmosphere following a nuclear blast. It explained how this toxic dust and ash can be carried by the wind and therefore poses a threat to everyone in the UK. The narrator says: “Fallout is dust that is sucked up from the ground by the explosion
Fallout can kill and since it can be carried for great distances by the wind, it can settle anywhere – so no place in the United Kingdom is safe.
“The risk is as great in the countryside as in the towns, nobody can tell where the safest place will be.”
The documentary went on to reveal the Government’s safest advice of “stay at home” in the event of an attack.
It added: “You are just as safe in your own home as anywhere else.
“In fact, you are far better off in your home because it is the place you know and are known. So stay where you are – if you leave, your local authority may take it over for homeless families.
“And if you move, the authorities in the new place will not help you with food, accommodation or other essentials.”
The “Protect and Survive” campaign was released at a time when tensions between the Soviet Union and the Western Bloc were at an all-time high.
US President Ronald Reagan’s election victory in 1980 brought the world the closest it had been to nuclear war since the Cuban Missile Crisis of 1962, as his “evil empire” narrative proved to be particularly antagonising to the Soviet Politburo.
The Soviets racked up their defence and placed SS-30 missiles across eastern Europe as a show of force.
However, the US retaliated by convincing its allies in Europe to host its Pershing 2 ballistic missiles and ground-launched cruise missiles.
The fate of the world hung in the balance and Mrs Thatcher’s determination to make sure Britons were prepared for the worst is a testament to how seriously the situation was taken at the time.
The guide also taught families how to create a fallout room and, within that, an inner refuge.
It said families may have to stay inside there for at least two weeks, so stocking up on food and supplies was essential. Britons were urged to store three-and-a-half gallons of water each, keeping it in the bath or basins.
They were also given advice should they not be at home when a nuclear bomb struck.
The public was advised to “lie flat in a ditch and cover exposed skin”.
In the event of someone dying in a fallout room, their family should “place the body in another room and cover it as securely as possible”.
We should be alarmed about the ongoing consequences of nuclear leaks and the risk of new nuclear disasters
The Chernobyl Syndrome, The New York Review of Books Sophie Pinkham, APRIL4, 2019
Manual for Survival: A Chernobyluie to the Futur
Midnight in Chernobyl: The Untold Story of the World’s Greatest Nuclear Disaster
Chernobyl: The History of a Nuclear Catastrophe
Moscow officials eventually realized that the reactor had exploded, and that there was an imminent risk of another, much larger explosion. More than thirty-six hours after the initial meltdown, Pripyat was evacuated. Columns of Kiev city buses had been sent to wait for evacuees on the outskirts of the city, absorbing radiation while plans were debated. These radioactive buses deposited their radioactive passengers in villages chosen to house the refugees, then returned to their regular routes in Kiev. Over the next two weeks, another 75,000 people were resettled from the thirty-kilometer area around Pripyat, which was to become known as the “Exclusion Zone,” and which remains almost uninhabited to this day.
The Soviet system began to marshal its vast human resources to “liquidate” the disaster. Many efforts to stop the fire in the reactor only made matters worse by triggering new reactions or creating toxic smoke, but doing nothing was not an option. Pilots, soldiers, firefighters, and scientists volunteered, exposing themselves to huge doses of radiation. (Many others fled from the scene.) They were rewarded with cash bonuses, cars, and apartments, and some were made “Hero of the Soviet Union” or “Hero of Ukraine,” but many became invalids or didn’t live to see their new homes. The radiation levels were so high that they made the electronics in robots fail, so “biorobots”—people in makeshift lead protective gear—did the work of clearing the area.
On April 28, a radioactive cloud reached Scandinavia. After attempts at denial, the Soviet government conceded that there had been an accident. Western journalists soon began reporting alarming estimates of Chernobyl casualties. To maintain the illusion that the accident was already under control, Moscow ordered Ukrainians to continue with the planned May Day parade in Kiev, about eighty miles away, thus exposing huge numbers of people—including many children—to radioactive fallout.
Thanks to word of mouth and to their well-honed skill at reading between the lines of official declarations, however, Kiev residents were already fleeing. By early May, the exodus had grown so large that it became almost impossible to buy a plane, train, or bus ticket out of the city. Tens of thousands of residents left even before the official order to evacuate children was issued, far too late, on May 15. Thousands of people were treated for radiation exposure in Soviet hospitals by the end of the summer of 1986, but the Soviet press was allowed to report only on the hospitalizations of the Chernobyl firemen and plant operators.
A few decades later, it seemed to many that the world’s worst nuclear disaster had caused surprisingly little long-term damage. The official toll is now between thirty-one and fifty-four deaths from acute radiation poisoning (among plant workers and firefighters), doubled leukemia rates among those exposed to exceptionally high radiation levels during the disaster response, and several thousand cases of thyroid cancer—highly treatable, very rarely fatal—among children. Pripyat became a spooky tourist site. In the Exclusion Zone, one could soon see wolves, elk, lynx, brown bears, and birds of prey that had almost disappeared from the area before Chernobyl; some visitors described it as a kind of radioactive Eden, proof of nature’s resiliency. But striking differences in new books about Chernobyl by Kate Brown, Adam Higginbotham, and Serhii Plokhy show that there are still many ways to tell this story, and that the lessons of Chernobyl remain unresolved.
Both Plokhy and Higginbotham devote their first sections to dramatic reconstructions of the disaster at the plant. Sketches of loving family life or youthful ambition introduce the central figures, making us queasy with dread. The two authors’ minute-by-minute descriptions of the reactor meltdown and its aftermath are as gripping as any thriller and employ similar techniques: the moments of horrified realization, the heroic races against time. The prescient 1979 film The China Syndrome, about a barely averted disaster at a nuclear plant and its cover-up, is mentioned in both books. The movie’s title comes from a former Manhattan Project scientist’s hypothetical discussion of a reactor meltdown in North America causing fuel to burn its way through the globe to China. Though that specific scenario was clearly impossible, “China syndrome” became shorthand for anxieties about nuclear material burning through the foundations of the Chernobyl plant and entering the water table, the Dnieper River Basin, and then the Black Sea.
Plokhy, a historian of Ukraine, provides a masterful account of how the USSR’s bureaucratic dysfunction, censorship, and impossible economic targets produced the disaster and hindered the response to it. Though the Soviets held a show trial to pin responsibility on three plant employees, Plokhy makes plain the absurdity of holding individuals accountable for what was clearly a systemic failure…….
For Plokhy, the greatest lesson of Chernobyl is the danger of authoritarianism. The secretive Soviet Union’s need to look invincible led it to conceal the many nuclear accidents that preceded Chernobyl, instead of using studies of them to improve safety. …. Once the reactor exploded, Soviet censorship kept citizens in the dark about the disaster, preventing them from taking measures to protect themselves.
But cover-ups and bureaucratic buck-passing don’t happen only in authoritarian governments. ………
we should be alarmed about the ongoing consequences of nuclear leaks and the risk of new nuclear disasters. Higginbotham points out that the United States now operates a hundred nuclear power reactors, including the one at Three Mile Island that suffered a serious accident in 1979, just twelve days after the release of The China Syndrome. France generates 75 percent of its electricity from nuclear power plants, and China operates thirty-nine nuclear power plants and is building twenty more. Some people see nuclear power plants, which do not emit any carbon dioxide, as the most feasible way of limiting climate change, and new reactor models promise to be safer, more efficient, and less poisonous. But what if something goes wrong?
And what about nuclear waste? There are hundreds of nuclear waste sites in the US alone. In February the Environmental Protection Agency ordered the excavation of a landfill near St. Louis containing nuclear waste, dumped illegally, that dated back to the Manhattan Project. For years, an underground fire has been burning a few thousand feet from the dump. It took the federal government twenty-seven years to reach a decision about how to deal with this nuclear waste dump near a major metropolitan area, yet we fault the Soviet government for its inadequate response to a nuclear meltdown that unfolded in a matter of minutes. US failure to adequately address longstanding hazards—not to mention the slow-motion catastrophe of climate change—is yet another indication that poor disaster response is hardly unique to authoritarian regimes.
Then there is the renewed threat of nuclear war. One of Gorbachev’s biggest achievements was the Intermediate-Range Nuclear Forces Treaty, which eliminated US and Soviet land-based intermediate nuclear weapon systems. This February the US withdrew from the treaty, with President Trump citing Russian noncompliance. His administration recently called for the expansion of the US “low-yield” nuclear force, which includes weapons the size of those dropped on Hiroshima and Nagasaki. Analysts have pointed out that a greater diversity of nuclear weapons makes it harder for a target to know whether it is facing a limited or existential threat—and therefore raises the risk that the target will overreact…………https://www.nybooks.com/articles/2019/04/04/chernobyl-syndrome/?fbclid=IwAR3t_0OOHrEx58i85ELla1otEQ8_vIOTpxhDaI0Lw7iWIpfP-4mT5aVLKtU
Nuclear energy and Price Anderson Act – too risky for insurance companies – just too dangerous
Should the U.S. Revive Nuclear Energy?, NYT Len Charlap, 10 Apr 19, Princeton, N.J. I will support nuclear power the day after the Price-Anderson Nuclear Industries Indemnity Act is repealed. If insurance company actuaries consider nuclear power to be so dangerous that they cannot compute premiums that the industry can afford, then that industry is not economically viable. If the government (i.e., taxpayers) has to cover the industry with catastrophic insurance, then the government should own the reactors and provide nonprofit energy.
We were lucky at Three Mile Island. We were minutes away from a complete meltdown that given the plant’s location would have killed thousands and done billions in damage. Investigations of Three Mile Island showed that, like the Deepwater Horizon disaster, extremely dangerous processes cannot be allowed to remain in control of people whose first responsibility is profit or return to shareholders…. https://www.nytimes.com/2019/04/09/opinion/letters/nuclear-energy.html
Nuclear weapons accidents and losses 1950s – 2000s
“Broken Arrows” – The World’s Lost Nuclear Weapons https://
interestingengineering.com/broken-arrows-the-worlds-lost-nuclear-weapons
Since the early 1950s, the United States and Russia have had numerous accidents with their nuclear bombs, and a number have even gone missing. By Marcia Wendorf, April, 06th 2019 “Broken Arrow” is the name given to nuclear weapon accidents, whether they be by accidental launching, firing, detonating, theft or loss of the weapon. The U.S. admits to having 32 broken arrows worldwide, with six nuclear weapons having been lost and never recovered.
Thermonuclear weapons (hydrogen bombs) utilize a different process, that of fusion. When exposed to extremely high temperatures and pressures, some lightweight nuclei can fuse together to form heavier nuclei, releasing energy in the process. Those high temperatures and pressures are achieved by fission, so the trigger for a thermonuclear weapon is a nuclear weapon.
The 1950s
On April 11, 1950, a B-29 bomber carrying a nuclear weapon, four spare detonators, and a crew of 13 crashed into a mountain near Albuquerque, New Mexico. The bomb’s high explosives detonated and the nuclear capsule was damaged but it was recovered. All thirteen crew members onboard the aircraft died.
On August 5, 1950 at Fairfield-Suisun AFB, California, a B-29 bomber carrying a Mark 4 nuclear bomb experienced problems with two of its propellers and crashed while attempting an emergency landing. In the ensuing fire, the bomb’s high explosives detonated and killed 19 crew members and rescue personnel.
On November 10, 1950, near Riviere-du-Loup, Quebec, Canada, which is about 300 miles northeast of Montreal, a U.S. B-50 aircraft jettisoned a Mark 4 nuclear bombover the St. Lawrence River. The weapon’s high explosive detonated on impact, but the core was lacking a necessary component and did not detonate. The explosion did scatter almost 100 pounds (45 kg) of uranium. The airplane went on to land safely.
On July 27, 1956, a U.S. B-47 bomber was on a training exercise when it crashed into a nuclear weapons storage facility at the Lakenheath Air Base in Suffolk, England. The entire crew of the aircraft was killed. Known as an “igloo”, the storage facility contained three Mark 6 nuclear bombs, one of whose detonators had been sheared off in the accident. Investigators concluded that it was a miracle that the bomb hadn’t exploded.
On May 22, 1957, a plane was transporting a nuclear bomb to Kirtland Air Force Base when suddenly, the bomb fell through the bomb bay doors and crashed into a field near Albuquerque, New Mexico. The bomb’s high explosives detonated, creating a crater 12 feet deep and 25 feet wide, however, the nuclear capsule was found intact. The only casualty was a cow who had been grazing close to the crash site.
On July 28, 1957, a U.S. Air Force C-124 aircraft from Dover Air Force Base, Delaware was carrying three nuclear bombs over the Atlantic Ocean. The plane experienced a loss of power, and the crew jettisoned two nuclear bombs into the ocean, and they have never been recovered.
On February 5, 1958, near Savannah, Georgia, during a practice exercise, an F-86 fighter plane collided with a B-47 bomber that was carrying a 7,600-pound (3,400 kg) Mark 15 nuclear bomb. The F-86 crashed after the pilot ejected from the plane. The crew of the B-47 requested permission to jettison the bomb in order to reduce weight and prevent the bomb from exploding during an emergency landing. The bomb was jettisoned at 7,200 feet (2,200 m) over the Wassaw Sound off the shores of Tybee Island. Subsequent searches failed to locate the weapon.
On March 11, 1958, a U.S. Air Force Boeing B-47E-LM Stratojet took off from Savannah, Georgia, and was scheduled to fly to the U.K. The aircraft was carrying nuclear weapons in case a war with the Soviet Union broke out. Captain Earl Koehler noticed a fault light in the cockpit, indicating that the bomb harness locking pin had not engaged. He sent Captain Bruce Kulka to the bomb bay area to fix the problem.
As Kulka reached around the bomb to pull himself up, he mistakenly grabbed the emergency release pin, and the Mark 6 bomb dropped onto the bomb bay doors. The bomb’s weight forced the doors open, and the bomb dropped 15,000 ft (4,600 m) to the ground. Two sisters, six-year-old Helen and nine-year-old Frances Gregg, along with their nine-year-old cousin Ella Davies, were playing 200 yards (180 m) from a playhouse their father had built for them.
The bomb struck the playhouse, its high explosives detonated and it created a crater 70 feet (21 m) wide and 35 feet (11 m) deep. Fortunately, the fissile nuclear core had been stored elsewhere on the plane. All three children were hurt, as were their father, mother and brother. The family sued the Air Force and received US $54,000. Today, the crater is still visible although overgrown by vegetation.
At a U.S. air base at Greenham Common, England on February 28, 1958, a B-47 carrying a nuclear weapon caught fire and completely burned. While the weapon didn’t explode, in 1960, a group of scientists found high levels of radioactive contamination at the base. The U.S. government has disclosed no further information about the incident.
On November 4, 1958, at Dyess Air Force Base in Texas, a plane carrying a nuclear weapon burst into flames during takeoff. The weapon’s high explosives detonated, killing a crewman, but the nuclear core remained intact. Only half a mile from the crash site was Butterfield Elementary School.
On November 26, 1958, at Chennault Air Force Base, Louisiana, a B-47 carrying one nuclear weapon caught fire while on the ground. This fire damaged the nuclear capsule and its protective case, and there was nuclear contamination of the area.
In Hardinsberg, Kentucky, on October 15, 1959, a B-52 carrying two nuclear weapons and a KC-135 refueling plane collided midair. Both planes and both bombs fell to the ground. The crash killed four crew members, and the two nuclear weapons were only slightly damaged. No radiation leakage was detected.
The 1960s
On January 24, 1961, a B-52 carrying two three- or four-megaton nuclear bombs was over Goldsboro, North Carolina when it suffered the structural failure of its right wing. The aircraft broke apart and the two nuclear weapons were released. On one bomb, three of its four arming mechanisms had activated.
In 2013, a Freedom of Information Act request confirmed that only a single switch out of four had prevented the bomb’s detonation. One of the recovery team recalled, “Until my death, I will never forget hearing my sergeant say, ‘Lieutenant, we found the arm/safe switch.’ And I said, ‘Great.’ He said, ‘Not great. It’s on arm.'”
The second bomb plunged into a muddy field, and its tail was discovered 20 feet below ground. A decision was made to leave the uranium and plutonium in place, and The United States Army Corps of Engineers purchased a 400-foot (120 m) circular easement over the buried components. Had either of the bombs gone off, everyone within an 8.5 mile (13.7km) radius would have been killed.
On March 14, 1961 a B-52F-70-BW Stratofortress bomber carrying four nuclear weapons experienced a problem with its cabin temperature. After temperatures climbed to between 125 degrees F and 160 degrees, the crew descended to 12,000 feet and depressurized the plane. After all four engines flamed out, the pilot put the plane into a dive and all crew members bailed out.
The plane crashed into a barley field near Yuba City, California, and the nuclear weapons were released. The weapons’ multiple safety measures protected against a nuclear explosion or release of radioactive material. A fireman was killed and several others were injured while rushing to the accident scene.
On July 4, 1961, a K-19 “Hotel”-class Soviet nuclear-powered ballistic missile submarine was off the coast of Norway. The cooling system of one of its two nuclear reactors failed, and the temperature of the nuclear core climbed to 800 degrees Celsius, threatening to melt down its fuel rods. The crew and the submarine itself were contaminated by radiation and several fatalities were reported.
On October 25, 1962, at the Duluth Sector Direction Center near Duluth, Minnesota, an intruder was shot while scaling a fence around the facility. This triggered a “sabotage alarm”, which triggered a warning at Volk Field in Wisconsin. This alarm triggered nuclear armed F-106A interceptor aircraft to be sent to the source of the original alarm – Duluth.
Because of the Cuban Missile Crisis, the U.S. was at DEFCON 3, and there were no practice drills, everything was the real deal. When Duluth communicated that nothing was seriously wrong, the planes were only stopped by a car that raced down the runway after them. The intruder turned out to have been a black bear.
On January 13, 1964, a U.S. B-52 carrying two nuclear bombs suffered severe turbulence, and its vertical stabilizer broke off. The crew bailed out and the plane crashed near Savage Mountain outside Barton, Maryland. The bombs were found “relatively intact in the middle of the wreckage”. Three crewmen were killed as a result of the accident.
On December 8, 1964, at Bunker Hill Air Force Base, Indiana, several Strategic Air Command (SAC) aircraft were taxiing down a runway. The jet blast from one aircraft caused the plane behind it to slide off the runway and catch fire. The five nuclear weapons onboard the plane burned, but radioactive contamination was limited to the immediate area of the crash and was subsequently removed.
On December 5, 1965, an A-4E Skyhawk attack aircraft carrying a 1-megaton thermonuclear weapon, rolled off the deck of the U.S.S. Ticonderoga and fell into the Pacific Ocean. The plane, its pilot, Douglas Webster, and the weapon sank in 16,000 feet of water and were never found. It wasn’t until 15 years later that the U.S. Navy finally admitted that the accident had taken place only 80 miles from Japan’s Ryuku island chain, and this caused an uproar in Japan, which prohibits nuclear weapons from being brought into its territory.
Sometime during the mid-1960s, in the Kara Sea, the Soviet nuclear-powered icebreaker Lenin encountered problems with its nuclear reactors, possibly experiencing a meltdown. It was forced to dump the reactors into the sea and they have never been found.
The most well-known broken arrow occurred on January 17, 1966 near Palomares, Spain. A U.S. B-52 aircraft, carrying four nuclear weapons, collided with its refueling tanker, a KC-135, at 31,000 feet (9,450 m) and crashed over the Mediterranean Sea. Of the four Mk28-type hydrogen bombs, three were found on land near the fishing village of Palomares. The high explosives in two of the bombs had detonated and released plutonium contamination across a 0.77-square-mile (2 km2) area. The fourth bomb, was recovered intact after a 2 ½ month-long search. During the U.S. cleanup effort, over 1,400 tons of soil were sent to a nuclear storage site.
On January 21, 1968, a fire erupted onboard a B-52 bomber operating out of Thule Air Base in the Danish territory of Greenland. The plane was carrying four B28FI thermonuclear bombs, and it crashed onto the sea ice in North Star Bay. The conventional explosives detonated and the nuclear capsules ruptured and dispersed their contents, resulting in radioactive contamination.
The U.S. and Denmark launched a clean-up operation, but the secondary stage of one of the nuclear weapons was never found. Workers involved in the clean-up operation have been experiencing radiation-related illnesses, and they have sought compensation.
On April 11, 1968, a Soviet diesel-powered “Golf”-class ballistic missile submarine sank 750 miles northwest of the Hawaiian island of Oahu. U.S. intelligence determined that the submarine had been carrying three nuclear-armed ballistic missiles and several nuclear-tipped torpedoes. The U.S. Central Intelligence Agency (CIA), partnered with industrialist Howard Hughes to build a specially-designed deep-water salvage ship, the “Glomar Explorer” to recover the lost sub. They were only partly successful when the Glomar raised approximately half of the submarine.
Also during the Spring of 1968, the U.S.S. Scorpion, a nuclear attack submarine, mysteriously sank about 400 miles southwest of the Azores islands. Besides the tragic loss of all 99 crew members, the Scorpion was carrying two nuclear-tipped weapons with yields of up to 250 kilotons.
The 1970s
On April 12, 1970, in the Atlantic Ocean about 300 miles northwest of Spain, a Soviet “November”-class nuclear-powered attack submarine experienced a problem with its nuclear propulsion system. A merchant ship attached a tow line and attempted to pull the submarine to safety, but the submarine sank, killing all 52 crew members on board.
Off the coast of Sicily, Italy on November 22, 1975, twelve years to the day of his assassination, the U.S. aircraft carrier John F. Kennedy collided with the cruiser USS Belknap during an exercise. The collision occurred at night and during high seas. One, or possibly both ships, contained nuclear weapons, but no nuclear contamination was detected by rescue personnel.
The 1980s
On September 19, 1980, near Damascus, Arkansas, crewman were performing maintenance on a Titan II Inter-continental Ballistic Missile (ICBM). A crewman accidentally dropped a wrench into the silo, and it punctured the missile’s fuel tank. The missile leaked fuel for over eight hours before finally exploding, killing one and injuring 21 others. The blast destroyed the entire compound, but the nuclear warhead was recovered intact.
On October 3, 1986, 480 miles east of Bermuda, a Soviet “Yankee I”-class nuclear-powered ballistic missile submarine suffered an explosion and fire in one of its missile tubes. An attempt was made to tow the submarine, but it sank on October 6, 1986 in 18,000 feet of water, taking its two nuclear reactors and approximately 34 nuclear weapons down to the bottom of the sea.
About 300 miles north of the Norwegian coast on April 7, 1989, a Soviet nuclear-powered attack submarine, the “Komsomolets”, caught fire and sank. The vessel’s two nuclear reactors and two nuclear-armed torpedoes were lost, along with 42 of the 69 crew members.
On August 10, 1985, at the Chazhma Bay repair facility, about 35 miles from the city of Vladivostok, Russia, an “Echo”-class Soviet nuclear-powered submarine suffered a reactor explosion that released a cloud of radioactivity. Fortunately, the cloud never reached Vladivostok, but ten Soviet officers were killed by the explosion.
The 1990s
Also in the White Sea, on September 27, 1991, a “Typhoon”-class nuclear-powered ballistic missile submarine suffered a missile launch malfunction during a test. No other information is available about this incident.
In the Barents Sea on February 11, 1992 a collision occurred between a CIS (Commonwealth of Independent States) “Sierra”-class nuclear-powered attack submarine and the U.S. nuclear-powered attack submarine “Baton Rouge”. The Commonwealth of Independent States is comprised of Armenia, Azerbaijan, Belarus, Georgia, Kazakhstan, Kyrgyzstan, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan. The vessels reportedly suffered only minor damage, but a dispute arose over whether the incident had happened inside or outside of Russian territorial waters.
On March 20, 1993, in the Barents Sea, the U.S. nuclear-powered submarine Grayling collided with a Russian Delta III nuclear-powered ballistic missile submarine. Both vessels reportedly only suffered minor damage.
The 2000s
On August 12, 2000, also in the Barents Sea, a CIS “Oscar II” class submarine, the “Kursk”, suffered a torpedo failure and explosion. The ship sank with all 118 men onboard. No evidence of radiation contamination was detected.
On August 29, 2007, at Minot Air Force Base in North Dakota, six AGM-129 ACM cruise missiles, each loaded with a W80-1 variable yield nuclear warhead, were mistakenly loaded onto a B-52H bomber, and transported to Barksdale Air Force Base in Louisiana. The nuclear warheads were supposed to have been removed before transport, but they weren’t..
Once at Barksdale, the missiles with the nuclear warheads remained mounted to the aircraft for 36 hours and were not protected by the various mandatory security precautions for nuclear weapons. The missiles were never reported as missing, by Minot.
It’s likely that Flamanville nuclear reactor will be delayed yet again, with discussion on how to fix faulty welds
ICIS 5th April 2019 The commissioning of France’s long-overdue 1.65GW Flamanville 3 nuclear project could face
further delays, according to industry stakeholders. A group of experts from French nuclear authority ASN, nuclear safety institute IRSN and utility EDF are set to meet on 9 April to discuss what to do about the welds of the plant’s EPR reactor, IRSN’s director Jean Cristophe-Niel said at a conference in Paris on Thursday.
At the meeting ASN could communicate to EDF whether it would want the welds to be entirely rebuilt or just repaired. If ASN does order the welds to be rebuilt this could significantly delay the commissioning of the plant which was previously set for winter 2019-2020.
The project has already faced delays spanning seven years. ASN will have to communicate its final decision on
Flamanville’s welds in May. The director of energy think-tank WISE-paris Yves Marignac also said at the conference that it was possible Flamanville 3 would be delayed further with no clear timeframe in sight. A number of
traders present at the conference said they were not surprised by this possibility given the project’s track record.
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