China has Unveiled the World's Longest Over-Water Bridge


On Thursday, Chinese officials announced the opening of the Beijing-Shanghai High Speed Railway, which consists of the 102-mile long Danyang–Kunshan Grand bridge and the 71-mile long Tianjin Grand Bridge — the two longest in the world. Officials also unveiled the world’s longest sea bridge, a 26-mile expanse of steel and concrete that stretches from Qingdao to Huangdao. Both achievements were celebrated in ceremonious fashion, with live bands and an appearance by Chinese Premier Wen Jiabao, to demonstrate the country’s commitment to ensuring that a massive infrastructure will be in place to support its rapid economic growth.
Work on the Jiaozhou Bay bridge began in 2008 with two teams constructing the bridge from opposite ends. Engineers used computer modeling to map out how the bridge would connect with the utmost precision. Xinhua, the country’s official news agency, estimates the bridge’s total cost at $2.3 billion dollars. So if the calculations were a bit off, you’d have on your hands some very costly errors. “The computer models and calculations are all very well but you can’t really relax until the two sides are bolted together,” said one engineer, “Even a few centimeters out would have been a disaster.”
There were also some safety concerns but Chinese officials reassured the public that the bridge is sturdy enough to withstand earthquakes up to magnitude 8, typhoons and ships that might crash into the pillars carrying a force of 300,000 tons. However, management representing the Lake Pontchartrain Causeway in Louisiana, the previous record holder, isn’t relinquishing its spot in the Guinness Book of World Records that easily

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