FEIDONG, Aug. 8, 2016 -- Photo taken on Aug. 8, 2016 shows box girder installation site of Xishanyi Bridge of Shangqiu-Hefei-Hangzhou railway line in Dianbu Township of Feidong County, east China's Anhui Province. Installation work of 155 box girders of the 5,230.75-meter-long bridge started on Monday. Designed speed of the railway line linking Shangqiu of central China's Henan Province and Hangzhou of east China's Zhejiang Province is expected to reach 350 kilometers per hour. (Xinhua/Liu Junxi)