Workers make preparation on the Xiangjiang North Bridge in Changsha, capital of central China's Hunan Province, May 28, 2012. A five-month project to replace stay cables of the bridge started recently. The bridge is opened to traffic in 1991. It is the first time to replace the stay cables of the bridge thoroughly. [Xinhua]

Workers make preparation on the Xiangjiang North Bridge in Changsha, capital of central China's Hunan Province, May 28, 2012. A five-month project to replace stay cables of the bridge started recently. The bridge is opened to traffic in 1991. It is the first time to replace the stay cables of the bridge thoroughly. [Xinhua]

Photo taken on May 7, 2012 shows the Xiangjiang North Bridge in Changsha, capital of central China's Hunan Province. A five-month project to replace stay cables of the bridge started recently. The bridge is opened to traffic in 1991. It is the first time to replace the stay cables of the bridge thoroughly. [Xinhua]

Photo taken on May 28, 2012 shows the Xiangjiang North Bridge in Changsha, capital of central China's Hunan Province. A five-month project to replace stay cables of the bridge started recently. The bridge is opened to traffic in 1991. It is the first time to replace the stay cables of the bridge thoroughly. [Xinhua]