China Railway Fourth Bureau Bridge Construction

China Railway Fourth Bureau is actively constructing major bridges across China, including cable-stayed, high-speed railway, and urban landscape bridges, showcasing advanced engineering and large-scale project management.Key ProjectsChaohu-Ma'anshan Intercity Railway Channel Bridge China Railway Fourth Bureau completed concreting the bearing platforms for the F4 main tower of a dual-purpose channel bridge over the Yangtze River, part of the Chaohu-Ma'anshan Intercity Railway . This bridge is a double-tower steel-truss cable-stayed structure with a main span of 392 meters. Upon completion, it will become a three-tower, two-span cable-stayed bridge with the largest span in the world. The main tower platforms are dumbbell-shaped, covering 1,500 square meters each, requiring precise placement of thousands of cubic meters of concrete under challenging conditions. Linhai Guiwan River Bridge, Shenzhen Construction of the Linhai Guiwan River Bridge in the Qianhai Cooperation Zone began in September 2025 . The bridge spans 211.5 meters with a main span of 124.65 meters and is a fully welded steel structure consuming approximately 12,800 tons of steel. This bridge is a key urban landscape project, enhancing connectivity in the Qianhai area and integrating with the city's urban development plans. The project emphasizes refined management, safety compliance, and high-quality construction standards. Nandu Grand Bridge, Guangxi Province On the Nanning-Zhuhai high-speed railway, China Railway Fourth Bureau completed the final 32-meter box girder section on piers 42-43 of the Nandu Grand Bridge . The bridge spans 1.5 kilometers, consisting of three 24-meter beams and forty 32-meter box girders. The project involved complex logistics, overlapping construction schedules, and significant safety challenges, requiring detailed planning, technical briefings, and emergency response strategies.Engineering Techniques and AchievementsCable-stayed and steel-truss designs for long-span bridges, enabling large main spans and structural stability .Precast concrete and box girder placement for high-speed railway bridges, ensuring precision and efficiency in large-scale projects .Urban integration of bridges with surrounding infrastructure, as seen in Shenzhen, combining functionality with aesthetic and landscape considerations .High-standard project management including safety protocols, technical briefings, and refined construction methods to handle complex engineering challenges .SummaryChina Railway Fourth Bureau demonstrates advanced bridge construction capabilities across multiple regions, handling projects that range from world-record cable-stayed spans to urban landscape bridges and high-speed railway infrastructure. Their work highlights expertise in structural engineering, large-scale concrete placement, steel fabrication, and project management, contributing significantly to China's transportation and urban development network .