The Runyang Bridge is a large bridge complex that crosses the Yangtze River in Jiangsu Province, China, downstream of Nanjing. The complex consists of two major bridges that link Zhenjiang on the south bank of the river and Yangzhou on the north. The bridge is part of the Beijing-Shanghai Expressway.
The south bridge is a suspension bridge with a main span of 1,490 metres (4,888 ft). Upon its completion in 2005 it became the fourth longest suspension bridge span in the world and the largest in China. With the opening of the Xihoumen Bridge in 2007, it became the second longest span in China, and the fourth longest in the world. The towers are 215 metres (705 ft) above water level. The two approach spans are not suspended. The main span of the bridge consists of a streamlined orthotropic steel box girder that is 3 metres (10 ft) in depth. The width of the deck is 39.2 metres (129 ft), accommodating 6 traffic lanes and a narrow walkway at each outside edge for maintenance. The height clearance for river navigation is about 50 metres (164 ft).
The north bridge is a cable-stayed bridge with a main span of 406 metres (1,332 ft) with towers 150 metres (492 ft) above water level. In between the two bridges is the island of Siyezhou. The total length of the bridge complex is about 35.66 kilometres (22.16 mi). Construction of the bridge complex began in October 2000 and was completed ahead of schedule. The bridge cost 5.8 billion Yuan (about US$ 700 million). The complex opened to traffic on April 30, 2005.