Chongming-Qidong Yangtze River railway bridge under construction in Jiangsu(1/6)

The first steel sheet pile cofferdam of No. 4 main pier of Chongming-Qidong Yangtze River railway bridge completes installation in Nantong, east China's Jiangsu Province, Aug. 20, 2023. (Photo: China News Service/Liu Congjun)

With a span of 400 meters, the 4.09-kilometer-long Chongming-Qidong rail-road Yangtze River bridge is a project of the high-speed railway from Shanghai to Nanjing and Hefei. The bridge will have a six-lane expressway with designed speeds of 100 kilometers per hour on the upper deck with and four rail tracks on the lower level with designed speeds of 250 kilometers per hour.

The first steel sheet pile cofferdam of No. 4 main pier of Chongming-Qidong Yangtze River railway bridge completes installation in Nantong, east China's Jiangsu Province, Aug. 20, 2023. (Photo: China News Service/Liu Congjun)

The first steel sheet pile cofferdam of No. 4 main pier of Chongming-Qidong Yangtze River railway bridge completes installation in Nantong, east China's Jiangsu Province, Aug. 20, 2023. (Photo: China News Service/Liu Congjun)

The first steel sheet pile cofferdam of No. 4 main pier of Chongming-Qidong Yangtze River railway bridge completes installation in Nantong, east China's Jiangsu Province, Aug. 20, 2023. (Photo: China News Service/Liu Congjun)

The first steel sheet pile cofferdam is transferred to the construction site of the Chongming-Qidong Yangtze River railway bridge in Nantong, east China's Jiangsu Province, Aug. 20, 2023. (Photo: China News Service/Liu Congjun)

The first steel sheet pile cofferdam of No. 4 main pier of Chongming-Qidong Yangtze River railway bridge completes installation in Nantong, east China's Jiangsu Province, Aug. 20, 2023. (Photo: China News Service/Liu Congjun)