Yangtze River bridge KangBo, for the national highway network link (Chongqing Sichuan Chengdu Chongqing region Hejiang circles) highway to Naxi (referred to as Luzhou Chongqing Expressway) control project, the project total investment of 470 million yuan. It was officially started in January 1, 2010, with a total length of 1695 meters. The upper part of the main bridge is the 77m+133m+420m+133m+77m five span prestressed concrete Twin Towers double cable plane cable-stayed bridge, which is 840m long and 30m wide. The tower adopts the H box section, the tower is 146.3m high, the pier height is 61.7m, and the total 208m is. The upper part of the bridge is 8 * 30m+12 x 50m prestressed concrete simply supported T beam, which is long 840m and 28 meters wide.