Hgzhou Bay Bridge (36 kilometers' ong) is a bridge across Hangzhou Bay off the eastern coast of China. It connects Haiyan in Jiaxing city and Cixi of Ningbo city in Zhepang Province. The bridge is the longest trans-oceanic bridge in the world, one of the masterpieces of modem architecture.

The bridge underwent various feasibility studies for a decade before it was finally approved in 2002. Construction of this bridge started on June 8, 2003. 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 l, 2008. The bridge reduces the previously trip from Ningbo fo Shanghai by 120km and alleviates the congested Huhang Highway and Hangyong Highway.

The bridge has six expressway lanes in two directions. The designated speed is 100 kilometres per hour, and the designed longevity is more than 100 years. The total investment on the bridge was RMB 11. 8 billion. The bridge is shaped in an " S" , and the length of the bridge is decorated with flashing lights of different colors so that to distract from drowsiness, and keep attention on the road instead. This is also the real reason for "S" shape. There will be a service centre on this express-way. Mid-way through the bridge, a service island will be built for cars to turn off the road for rest, food, and a wide-range of services. The island is actually a plot- form resting on piers.