Nanjing Jiangxinzhou Yangtze River Bridge
Award of merit
Submitted By: CCCC Highway Consultants Co.
Owner: Nanjing Public Engineering Construction Center
Lead Design Firm, Civil and Structural Engineer: CCCC Highway Consultants Co.
General Contractor: CCCC Second Harbor Engineering Co.
Consultant: TY Lin International
The new bridge stretches across the Yangtze River in Nanjing, China. The 10.33-km project includes a 4.14-km bridge, the 1.75-km Jiajiang Tunnel and 4.4 km of other roadway sections with three lanes in both directions. The project was completed below budget and five months ahead of schedule by a large international team.
The environmentally friendly low-carbon construction included new industrialized technology to build one of the first full steel-concrete composite cable-stayed bridges in the world. Steel-shell processing and steel-bar installation were performed off site, reducing onsite labor by 70% and improving bridge construction efficiency by 75%. Coarse aggregate reactive powder concrete was chosen as the deck for the composite girder, which reduced its weight by 35%.
Since it opened to the public in 2021, average traffic volume on the bridge has reached about 80,000 vehicles per day. It has shortened the journey between the south and north sides of the river to 10 minutes from 40 minutes and reduced average daily carbon dioxide emissions in the area by about 900 tons.