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The first pile foundation for Hangzhou Bay Bridge, an integral part of the Nantong-Suzhou-Jiaxing-Ningbo High-speed Railway, is drilled in Haiyan county, Jiaxing, Zhejiang province, on March 10. [Photo provided to chinadaily.com.cn]

The first pile foundation for Hangzhou Bay Bridge, an integral part of the Nantong-Suzhou-Jiaxing-Ningbo High-speed Railway, was drilled in Haiyan county, Jiaxing, Zhejiang province, on March 10, marking the full start of offshore construction on the world's longest cross-sea high-speed railway bridge.

The Nantong-Suzhou-Jiaxing-Ningbo High-speed Railway is an important part of the medium- and long-term plans for China's high-speed rail network. It connects Nantong and Suzhou in Jiangsu province with Jiaxing and Ningbo in Zhejiang province from north to south.

As an important part of the Nantong-Suzhou-Jiaxing-Ningbo High-speed Railway, the Hangzhou Bay Railway Bridge is designed for a speed of 350 kilometers per hour and has a total length of 29.2 km.

The bridge will span over Hangzhou Bay, from Haiyan county in Jiaxing to Qianwan New Area of Ningbo, connecting the urban circle of Shanghai, Hangzhou and Ningbo in the core area of the Yangtze River Delta.

By the end of 2027, the Nantong-Suzhou-Jiaxing-Ningbo High-speed Railway is expected to be completed and put into operation.

After that, travel time between Jiaxing and Suzhou and Ningbo via the high-speed railway will be shortened to 30 minutes and 35 minutes, respectively, which will further improve the road network of the Yangtze River Delta region, increase travel efficiency and better integrate Jiaxing into the development of the Yangtze River Delta.

In addition, the railway will help Zhejiang province take better advantage of its favorable location, participate more in cooperation and exchanges in the Yangtze River Delta region, and open up more to the outside world.