Record: 1250 m
Main Span Record: 450 mMingzhou Bridge is a bridge in Ningbo City, Zhejiang Province, China. Bridge structure for the double leg steel box arch bridge, across the Yongjiang River, a total length of 1250 meters, of which the main span of 450 meters, Ningbo City Bridge is currently the largest single bridge structure, the world's longest bearing Double-limb steel box tied arch bridge. Bridge connecting Ningbo North High Education Park and Ningbo National Hi-Tech Industrial Development Zone, is part of the outer ring expressway. Bridge started in February 2008, October 2010, May 5, 2011 opened to traffic.