World's largest pier caisson floated successfully in Nantong
No.28 steel pier open caisson of the Shanghai-Nantong Yangtze River Bridge, the largest of its kind, floated and sank successfully on June 22. (Photo/Xinhua)
No.28 steel pier open caisson of the Shanghai-Nantong Yangtze River Bridge, the largest of its kind, floated and sank successfully on June 22. (Photo/Xinhua)
No.28 steel pier open caisson of the Shanghai-Nantong Yangtze River
Bridge, the largest of its kind, floated and sank successfully on June
22. (Photo/Xinhua)