Core Viewpoint - The successful completion of the Zhongdu River Grand Bridge marks a significant milestone for the Yibin to Panzhihua Expressway, which is set to be completed and opened to traffic by 2027, enhancing connectivity in the region [2] Group 1: Project Details - The Zhongdu River Grand Bridge is a key control project located in Xinshi Town, Ping Shan County, Yibin City, with a total length of 616 meters and a main span of 320 meters, crossing a steep V-shaped valley [2] - The construction faced complex conditions including deep water, steep slopes, and fast currents, prompting the project team to innovate with advanced techniques such as "trackless rear support hanging basket technology" [2] Group 2: Investment and Impact - The Yibin to Panzhihua Expressway is the largest single investment highway project in the history of highway construction in China [2] - Upon completion, the travel time from Yibin to Panzhihua will be reduced from 10 hours to 6 hours, significantly improving transportation efficiency in the region [2]

Core Viewpoint - The successful completion of the Zhongdu River Grand Bridge marks a significant milestone for the Yibin to Panzhihua Expressway, laying a solid foundation for the entire highway to be completed and operational by 2027 [2] Group 1: Project Details - The Zhongdu River Grand Bridge is located in Xinshi Town, Ping Shan County, Yibin City, with a total length of 616 meters and a main span of 320 meters, crossing a steep V-shaped valley [2] - The construction faced complex conditions such as deep water, steep slopes, and fast currents, prompting the project team to innovate by applying advanced techniques like "trackless rear support hanging basket technology" [2] Group 2: Economic Impact - The Yibin to Panzhihua Expressway is the largest single investment highway project in the history of highway construction in China [2] - Once completed, the travel time from Yibin to Panzhihua will be reduced from 10 hours to 6 hours, significantly improving transportation efficiency [2]