Harbin–Dalian high-speed railway

Beijing–Harbin railway from Beijing

Harbin–Jiamusi ICR to Jiamusi, Harbin–Mudanjiang ICR to

Harbin–Manzhouli railway to Manzhouli, Harbin–Qiqihar ICR to Qiqihar South

The Harbin–Dalian high-speed railway or Hada High-Speed Railway (Chinese: 哈大高速铁路; pinyin: Hādà Gāosù Tiělù) is a high-speed rail line connecting Harbin, Heilongjiang and Dalian, Liaoning. The line is the world's first alpine high-speed railway operating at high latitudes and low temperatures in winter. The trains can continue operating even with snow on the line and the tracks are fitted with de-icing technology. The project cost CN¥95 billion, which was 25% more than the original budget. The first commercial services began operating in December 1, 2012. At the time of completion, the railway was the northernmost high-speed line in China.

Construction work began on August 23, 2007. The climate of Northeast China poses a challenge to the design; parts of the line had to be rebuilt before the opening due to deformation caused by frost heaving. Test runs along the entire railway started on October 8, 2012. Eventually, it was decided that the route could be opened for commercial services on December 1, 2012, nearly one year behind schedule. On opening day the first commercial passenger services started with two trains leaving simultaneously, one from Dalian and the other from the new Harbin West station. During the first 52 days of operation, the line transported 2.856 million passengers.