The cable-stayed bridge was designed by the Shanghai Municipal Engineering Design Institute, Shanghai Urban Construction College, and Shanghai Urban Construction Design Institute, with assistance from Holger S. Svensson. It has a main span of 428 meters (1,388 ft).It is the 57th longest cable-stayed bridge in the world, opened to the public in 1991.
The spiral road is known for its funky and innovative spiral approach, and the way in which Shanghai's Nanpu Bridge designers came up with the novel idea to save space. When you can't build out, build up.
