Key project of Wenchuan-Ma'erkang expressway finished

Photo taken on Nov. 3, 2018 shows the construction site of Keku Bridge in Aba Tibetan and Qiang Autonomous Prefecture, southwest China's Sichuan Province. The closure of Keku Bridge, a key project of Wenchuan-Ma'erkang expressway, was finished on Saturday. (Xinhua/Liu Kun)