Sun Yisun, a former builder of the previous Baishatuo Yangtze River railway bridge, shows his old employee's card in Jiangjin of southwest China's Chongqing Municipality, April 23, 2019. The previous Baishatuo Yangtze River railway bridge, completed in 1959, will stop service after April 24. All trains will run on the new double decker steel truss cable stay railway bridge after that day. The new bridge has 4 tracks on the upper deck for passenger trains with a designed speed of 200 kilometers per hour and 2 tracks on the lower deck for cargo trains with the designed speed of 120 kilometers per hour. (Xinhua/Liu Chan)