Cable-stayed bridges gained popularity over suspension bridges by offering cost savings in steel and concrete, depending on the span.
JiaShao (Jiaxing-Shaoxing) Bridge, China
The world's longest cable-stayed bridge is the 10,138 m (main span) JiaShao Bridge spanning the Qiantang River at the mouth of Hangzhou Bay in China. The bridge forms part of the 69.5km Jiaxing-Shaoxing River-crossing Expressway and consists of eight traffic lanes. The bridge is 55.6m wide and features six single-column pylons. It was opened to traffic in July 2013.
JiaShao is the second cross-sea bridge to be constructed in the Hangzhou Bay after the Hangzhou Bay Bridge, which opened to the public in May 2008. The new bridge's construction was started in December 2008 and used approximately 78,235t of steel and up to 130 bored piles of 3.8m diameter each.
The construction work was carried out by China Railway Baoji Bridge Group (CRBBG), while the piles were installed by China Major Bridge Engineering. The total cost of the bridge was approximately CNY14bn (approximately $2.26bn).
