Core Points - The completion of the Nanxi River Grand Bridge marks a significant milestone for the Guangdong East Intercity Railway project, being the first cable-stayed bridge to achieve this status on the line [1][2] - The bridge, with a total length of 510 meters and a main span of 280 meters, is the largest in terms of main span and tower height among all bridges on the line [1] - The project is part of a national initiative to enhance the intercity railway network in Guangdong, aiming to improve regional connectivity and support the development of the Guangdong-Hong Kong-Macao Greater Bay Area [2] Group 1 - The Nanxi River Grand Bridge features a complex construction process due to challenging geological conditions, requiring deep pile foundations and high precision in construction [1] - The bridge's main tower is a double-column diamond tower, with heights of 95.5 meters and 98.5 meters, utilizing advanced construction technologies for safety and efficiency [1] - The project employs a self-developed tower crane system that eliminates the need for lifting stations, addressing logistical challenges related to waterway transport [2] Group 2 - The Guangdong East Intercity Railway project spans approximately 140.5 kilometers with a designed speed of 160 kilometers per hour, facilitating a "half-hour commuting circle" for key urban areas [2] - The completion of this railway is expected to enhance the integration of the Shantou-Chaozhou-Jieyang metropolitan area, promoting industrial clustering and improving living standards [2]