![Photo taken on Aug. 8, 2018 shows a nearly 500-ton steel box girder has been installed on the Qingshan Yangtze River Bridge under construction in Wuhan City, Hubei Province. It marked a milestone in building the bridge’s main span. (Photo/Xinhua)](http://www.ecns.cn/hd/2018/08/09/8b1075f7670a43a7be2415d99096ecd7.jpg)
Photo taken on Aug. 8, 2018 shows a nearly 500-ton steel box girder has been installed on the Qingshan Yangtze River Bridge under construction in Wuhan City, Hubei Province. It marked a milestone in building the bridge’s main span. (Photo/Xinhua)
![Photo taken on Aug. 8, 2018 shows a nearly 500-ton steel box girder has been installed on the Qingshan Yangtze River Bridge under construction in Wuhan City, Hubei Province. It marked a milestone in building the bridge’s main span. (Photo/Xinhua)](http://www.ecns.cn/hd/2018/08/09/49609cb9d57f41b0b115df08747acacd.jpg)
Photo taken on Aug. 8, 2018 shows a nearly 500-ton steel box girder has been installed on the Qingshan Yangtze River Bridge under construction in Wuhan City, Hubei Province. It marked a milestone in building the bridge’s main span. (Photo/Xinhua)
![Photo taken on Aug. 8, 2018 shows a nearly 500-ton steel box girder has been installed on the Qingshan Yangtze River Bridge under construction in Wuhan City, Hubei Province. It marked a milestone in building the bridge’s main span. (Photo/Xinhua)](http://www.ecns.cn/hd/2018/08/09/66c636f73825469daa1cd9d01de7c099.jpg)
Photo taken on Aug. 8, 2018 shows a nearly 500-ton steel box girder has been installed on the Qingshan Yangtze River Bridge under construction in Wuhan City, Hubei Province. It marked a milestone in building the bridge’s main span. (Photo/Xinhua)
![Photo taken on Aug. 8, 2018 shows a nearly 500-ton steel box girder has been installed on the Qingshan Yangtze River Bridge under construction in Wuhan City, Hubei Province. It marked a milestone in building the bridge’s main span. (Photo/Xinhua)](http://www.ecns.cn/hd/2018/08/09/6884590a8c15420c800475f4047b3149.jpg)
Photo taken on Aug. 8, 2018 shows a nearly 500-ton steel box girder has been installed on the Qingshan Yangtze River Bridge under construction in Wuhan City, Hubei Province. It marked a milestone in building the bridge’s main span. (Photo/Xinhua)