The Macao side of the Hong Kong-Zhuhai-Macao Bridge, the huge sea-crossing project linking the three southern Chinese cities, lit up in celebration of the 18th anniversary of the establishment of the Macao Special Administrative Region on Wednesday. /CFP Photo

Fireworks were visible across the river in the Chinese mainland city of Zhuhai. /CFP Photo

This section of the bridge is ready for traffic, with power facilities currently being tested and adjusted. /CFP Photo

The project is expected to open next year, playing a significant role in integration between the Chinese mainland, Hong Kong and Macao. /CFP Photo