On September 27, the concrete box girder for China's longest railway bridge was successfully installed over the Hangzhou Bay in Zhejiang province, marking the full transition of the Hangzhou Bay Cross-Sea Railway Bridge into its superstructure construction phase. This milestone lays a solid foundation for large-scale offshore girder installation in the next stage.

　　The Hangzhou Bay Cross-Sea Railway Bridge is a key control project of the Nantong-Suzhou-Jiaxing-Ningbo High Speed Railway and is currently the world's longest cross-sea high-speed railway bridge. With a total length of 29.2 kilometers, the bridge connects Haiyan in Jiaxing with Cixi in Ningbo. It is designed for a maximum speed of 350 kilometers per hour and is scheduled to be operational by the end of 2027.