Duohua super large bridge is a control project connecting Longli grassland area and Longxi inland open economic development pilot area in Longli County, with a total length of 1260m. The main bridge is a steel-concrete composite girder cable-stayed bridge with double pylons and double cable planes. The main tower is a thin-walled hollow diamond shaped cable tower with a total height of 265m. It is divided into 47 sections and constructed by hydraulic climbing formwork. The main span and tower column are equipped with sightseeing glass footpath, sightseeing elevator and aerial viewing platform.

After the completion of the project, it will effectively improve the network structure of Longxi economic belt, form a tourism route integrating grassland, bridge, canyon and countryside, and promote the local economic and social development. (please refer to www.seetao.com for reprint.  ）Editor of seetao.com / Sun Mengmeng