China's northernmost high-speed railway under construction resumes work and will complete the track-laying project in front of the Tieyi section within the year. On March 7, construction of the superstructure of the Yongxing Hulan River Bridge of the Haiyi High-speed Railway began.

The project will further improve the high- speed rail network in Northeast China, promote regional economic development, and make people’s travel more convenient and faster. The construction is difficult and the construction period is tight. The application of innovative technologies such as ultrasonic bore detectors has opened up key links in the construction process.