Today, 34 years ago, on June 20, 1991 (Lunar Calendar 9 May 1991) the Shanghai South Pole Bridge opened. The bridge's night view on June 20, 1991, the Shanghai South Pole Bridge won the junction, the entire bridge united the two sides of the Yangtze River. The South Pole Bridge was then the first in China, the world's third-largest double tower, double-sided joint lining bridge. The project total investment was 8 billion yuan, the bridge's total length was 8346 meters, the two main towers of the bridge each reached 154 meters, the main bridge's length was 864 meters, made of 1,500 tons of sliding steel and 6,300 tons of steel, 3,200 concrete bridge panels. The main bridge is net 46 meters high, the br