The bridge is supposed to last for 120 years. The cost of the bridge was about 126.9 billion yuan ($18.77 billion USD). At first, the cost of the bridge was supposed to be 51.1 billion yuan ($7.56 billion USD). The governments of mainland China, Hong Kong, and Macau, as well as some banks, helped pay for the bridge. The bridge was supposed to open in late 2016, but the bridge only finished being built on 6 February 2018. The bridge officially opened on 24 October 2018.