Main tower of world's largest road-rail cable-stayed bridge built(1/7)

Aerial photo taken on June 27, 2019 shows the construction site of a Yangtze River bridge on the Shanghai-Nantong railway line in Nantong, east China's Jiangsu Province. The south main tower of the bridge was completed on Thursday, marking an important progress of the construction of the cable-stayed railway-expressway bridge. (Xinhua/Xu Congjun)

Aerial photo taken on June 26, 2019 shows the construction site of the south main tower of a Yangtze River bridge on the Shanghai-Nantong railway line in Nantong, east China's Jiangsu Province. The south main tower of the bridge was completed on Thursday, marking an important progress of the construction of the cable-stayed railway-expressway bridge. (Xinhua/Xu Congjun)

Photo taken on June 27, 2019 shows the construction site of a Yangtze River bridge on the Shanghai-Nantong railway line in Nantong, east China's Jiangsu Province. The south main tower of the bridge was completed on Thursday, marking an important progress of the construction of the cable-stayed railway-expressway bridge. (Xinhua/Xu Congjun)

Aerial photo taken on June 27, 2019 shows the construction site of the south main tower of a Yangtze River bridge on the Shanghai-Nantong railway line in Nantong, east China's Jiangsu Province. The south main tower of the bridge was completed on Thursday, marking an important progress of the construction of the cable-stayed railway-expressway bridge. (Xinhua/Xu Congjun)

Aerial photo taken on June 26, 2019 shows the construction site of the south main tower of a Yangtze River bridge on the Shanghai-Nantong railway line in Nantong, east China's Jiangsu Province. The south main tower of the bridge was completed on Thursday, marking an important progress of the construction of the cable-stayed railway-expressway bridge. (Xinhua/Xu Congjun)

A worker takes a picture of the south main tower of a Yangtze River bridge on the Shanghai-Nantong railway line in Nantong, east China's Jiangsu Province, June 27, 2019. The south main tower of the bridge was completed on Thursday, marking an important progress of the construction of the cable-stayed railway-expressway bridge. (Xinhua/Xu Congjun)

Photo taken on June 27, 2019 shows the construction site of a Yangtze River bridge on the Shanghai-Nantong railway line in Nantong, east China's Jiangsu Province. The south main tower of the bridge was completed on Thursday, marking an important progress of the construction of the cable-stayed railway-expressway bridge. (Xinhua/Xu Congjun)