Modong Hongshui River Bridge, China

The Modong Hongshui River Bridge forms a vital component of the dual three-lane expressway between Nanning and Liuzhou, Guangxi Province in the south-western part of China. It is a reinforced concrete arch bridge with a main span of 180 m. The arch ribs were built using precast concrete segments erected by cantilever construction method with tiebacks. This technique has been well tried in the construction of cable-stayed bridges. As the tiebacks are temporary and therefore recoverable, the method is considered very economical.