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Hangzhou Bay Bridge is a bridge with cable-stayed bridge portion across Hangzhou Bay off the eastern coast of China. It connects the municipalities of Shanghai and Ningbo in Zhejiang province. The bridge is the longest trans-oceanic bridge in the world, although it does not have the longest cable-stayed main span. The opening ceremony was held on June 26, 2007 with great domestic media publicity, though after the opening ceremony, the bridge would only be used for test and evaluation purposes. It was opened to the public on May 1, 2008.
Construction of this bridge started on June 8, 2003. The bridge itself is 36 kilometres long with six expressway lanes in two directions, making it the second-longest bridge in the world. The bridge has two main spans, with a 448-metre northern span, and a 318-metre southern span. The designated speed is 100 kilometres per hour, and the designed longevity is more than 100 years. The total investment on the bridge was US$ 1.4 billion.
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