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US News Super Typhoon Mangkut will test a $20 billion bridge in the South China Sea

15:00  14 september  2018
15:00  14 september  2018 Source:   qz.com

Typhoon slices through western Japan, killing at least six

  Typhoon slices through western Japan, killing at least six Japan issued evacuation advisories for almost 300,000 people and canceled hundreds of flights in the face of strong winds and heavy rain as typhoon Jebi roared north and was set to make landfall later on Tuesday.Jebi, or "swallow" in Korean, was briefly a super typhoon and is the most powerful storm to hit Japan in 25 years following rains, landslides, floods and record-breaking heat that killed hundreds of people this summer.

 Video: Strong winds, rain lash Philppines as super typhoon bears down (Reuters)

Super Typhoon Mangkhut, one of the strongest storm systems this year, is barreling across Asia. It has already wreaked havoc in Guam, and is expected to cause major damage in Luzon, the breadbasket of the Philippines, before nearing Hong Kong and Macau on Sunday (Sept. 16).

a bridge over a body of water © Provided by Quartz The storm, with sustained winds of nearly 130 miles an hour, equals the wind power of a Category 4 hurricane, and could be the most powerful tropical cyclone Hong Kong has experienced since the city began collecting records in 1946.

Typhoon floods Japan airport, damages other infrastructure

  Typhoon floods Japan airport, damages other infrastructure One of Japan's busiest airports has been closed indefinitely after a strong typhoon flooded a runway and other facilities while damaging other infrastructure in central and western Japan. TOKYO — One of Japan's busiest airports remained closed indefinitely after the strongest typhoon to hit Japan in at least 25 years flooded a runway and other facilities while damaging other infrastructure and causing at least 10 deaths as it swept across part of Japan's main island.

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One question that Hong Kong and Macau have on their minds as the cities brace for the massive storm is this: how will the $20-billion Hong Kong-Zhuhai-Macau bridge, set to open later this year, fare under the powerful lashing of a super typhoon?

a screenshot of text © Provided by Quartz The 34-mile bridge—the world’s longest sea-crossing bridge—has been years in the making and will link Hong Kong, a former British colony, and Macau, the world’s casino capital and a former Portuguese colony, with the southern Chinese city of Zhuhai. It is part of China’s attempt to project its economic and political might to the world as it seeks to weave Hong Kong together with neighboring areas into the self-styled Greater Bay Area (paywall), a region of $67 million that would boast a trillion-dollar economy to rival San Francisco’s Bay Area as a high-tech hub.

Super Typhoon Nears Philippines With 170 M.P.H. Winds

  Super Typhoon Nears Philippines With 170 M.P.H. Winds Heavy rains and strong winds were buffeting the eastern coast of Luzon island on Friday as Super Typhoon Mangkhut approached.MANILA — A powerful typhoon bearing 170-mile-an-hour winds churned its way toward the northern Philippines on Friday, as thousands of people evacuated their homes and stockpiled emergency supplies in frantic preparation for the possibility of a major disaster.

ZHUHAI, CHINA - JUNE 29:  Aerial view of the Hong Kong-Zhuhai-Macao Bridge on June 29, 2016 in Zhuhai, Guangdong Province of China. The Hong Kong-Zhuhai-Macao Bridge will be the world's longest cross-sea bridge when it be completed in the fourth quarter of 2017, it will have a total length of about 55 km, including a 6.7-km underwater tunnel and a 23-km bridge. It took seven years and some 100 billion yuan (about 15 billion USD) to construct the bridge since 2009. As the Hong Kong-Zhuhai-Macao Bridge opens to traffic, connecting Hong Kong with branches to Zhuhai and Macao for the first time, it will greatly shorten the distance between Hong Kong, Zhuhai and Macao, according to China Daily. (Photo by VCG)  (Photo by VCG/VCG via Getty Images) © Getty ZHUHAI, CHINA - JUNE 29: Aerial view of the Hong Kong-Zhuhai-Macao Bridge on June 29, 2016 in Zhuhai, Guangdong Province of China. The Hong Kong-Zhuhai-Macao Bridge will be the world's longest cross-sea bridge when it be completed in the fourth quarter of 2017, it will have a total length of about 55 km, including a 6.7-km underwater tunnel and a 23-km bridge. It took seven years and some 100 billion yuan (about 15 billion USD) to construct the bridge since 2009. As the Hong Kong-Zhuhai-Macao Bridge opens to traffic, connecting Hong Kong with branches to Zhuhai and Macao for the first time, it will greatly shorten the distance between Hong Kong, Zhuhai and Macao, according to China Daily. (Photo by VCG) (Photo by VCG/VCG via Getty Images) The bridge is designed to last 120 years, withstand winds of up to 125 miles per hour, and resist the impact of a magnitude-8 earthquake and a 300,000 metric ton vessel, according to the official in charge of the project’s construction.

Philippines hit by monster typhoon Mangkhut

  Philippines hit by monster typhoon Mangkhut The typhoon made landfall before dawn in the coastal town of Baggao in Cagayan province on the northern tip of Luzon island.Typhoon Mangkhut has made landfall on the northeastern coast of the Philippines.

As of Sept. 14, gusts of 150 miles per hour have been measured at the center of the storm, but the tropical cyclone is expected to weaken by the time it passes within 200 kilometers (120 miles) of Hong Kong on Sunday morning. It’s expected to bring heavy rains and storm surges, according to the Hong Kong Observatory, which notes that the cyclone’s path can still change.

ZHUHAI, CHINA - JUNE 29:  Aerial view of the Hong Kong-Zhuhai-Macao Bridge on June 29, 2016 in Zhuhai, Guangdong Province of China. The Hong Kong-Zhuhai-Macao Bridge will be the world's longest cross-sea bridge when it be completed in the fourth quarter of 2017, it will have a total length of about 55 km, including a 6.7-km underwater tunnel and a 23-km bridge. It took seven years and some 100 billion yuan (about 15 billion USD) to construct the bridge since 2009. As the Hong Kong-Zhuhai-Macao Bridge opens to traffic, connecting Hong Kong with branches to Zhuhai and Macao for the first time, it will greatly shorten the distance between Hong Kong, Zhuhai and Macao, according to China Daily. (Photo by VCG)  (Photo by VCG/VCG via Getty Images) © Getty ZHUHAI, CHINA - JUNE 29: Aerial view of the Hong Kong-Zhuhai-Macao Bridge on June 29, 2016 in Zhuhai, Guangdong Province of China. The Hong Kong-Zhuhai-Macao Bridge will be the world's longest cross-sea bridge when it be completed in the fourth quarter of 2017, it will have a total length of about 55 km, including a 6.7-km underwater tunnel and a 23-km bridge. It took seven years and some 100 billion yuan (about 15 billion USD) to construct the bridge since 2009. As the Hong Kong-Zhuhai-Macao Bridge opens to traffic, connecting Hong Kong with branches to Zhuhai and Macao for the first time, it will greatly shorten the distance between Hong Kong, Zhuhai and Macao, according to China Daily. (Photo by VCG) (Photo by VCG/VCG via Getty Images) A structural and geotechnical engineer told the South China Morning Post that the super typhoon could test the limits of the bridge’s structural safety.

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“Whether the bridge can withstand the destructive force of Super Typhoon Mangkhut depends on the height of the waves at the artificial island,” said Ngai Hok-yan.

SUBI REEF, SOUTH CHINA SEA - MAY 20, 2016:  DigitalGlobe imagery of the Subi Reef in the South China Sea, a part of the Spratly Islands group.  Photo DigitalGlobe via Getty Images. © Getty SUBI REEF, SOUTH CHINA SEA - MAY 20, 2016: DigitalGlobe imagery of the Subi Reef in the South China Sea, a part of the Spratly Islands group. Photo DigitalGlobe via Getty Images. The main bridge structure of 18 miles includes two artificial islands that serve as entry and exit points for a 4-mile underwater sea tunnel west of the Hong Kong section of the bridge. In April, photos showing wave-absorbing concrete blocks apparently floating away from one of the islands were widely shared online, causing fears of erosion. The bridge authority later clarified that the interlocking concrete blocks, known as dolosse, were designed to be submerged randomly so as to limit the amount of pressure exerted on the tunnel.

ZHUHAI, Sept. 27, 2016 -- West artificial island of the world's longest cross-sea bridge, which connects Zhuhai in Guangdong Province with Hong Kong and Macao, is seen in Zhuhai, south China's Guangdong Province, Sept. 26, 2016. (Xinhua/Liang Xu via Getty Images) © Getty ZHUHAI, Sept. 27, 2016 -- West artificial island of the world's longest cross-sea bridge, which connects Zhuhai in Guangdong Province with Hong Kong and Macao, is seen in Zhuhai, south China's Guangdong Province, Sept. 26, 2016. (Xinhua/Liang Xu via Getty Images)

“If the waves are higher than four meters [13 feet], then there is a chance these protective blocks will be washed away, and very quickly,” said Ngai. “Without the protection of the dolosse, the worst-case scenario would see the undersea tunnel detach from the artificial island and float above the sea, and also the collapse of the island,” he added.

'Trees were uprooted and crashing into windows' - Irish family safe as super typhoon rips across Hong Kong .
'Trees were uprooted and crashing into windows' - Irish family safe as super typhoon rips across Hong KongMum-of-three Gill Friend said the labelling of typhoon Mangkhut as a "super typhoon" was justified.

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