On May 28 , 2008 , 16 days after the Wenchuan earthquake devastated Dujiangyan and the western suburbs of Chengdu , the Chengdu city government and the Ministry of Railways agreed to build a high-speed railway line as part of the reconstruction of the disaster zone . Construction began on November 4 , 2008 and involved 20,000 workers at the cost of ¥ 13 billion . The line entered trial operation on April 1 , 2010 and full commercial operation began on May 12 , 2010 , the second anniversary of the large earthquake that killed some 70,000 people in the region
Wenchuan earthquake
2008 Sichuan earthquake
Chengdu–Dujiangyan intercity railway