The Nanjing Dashengguan Changjiang River Bridge was designed to be a strong and stable structure for high-speed trains to cross. The bridge uses steel truss arches with special features like box section chords and octagon hangers to improve performance. X-shape bracing connections help distribute forces evenly. The bridge deck is made of steel segments for durability. Construction went smoothly, with the main girders finished in 2009. Rails are expected to be laid in 2010.