The proposed 49.7 km eight-lane link was completed in 2024 and was expected to cost around US$4.83 billion.
The idea of a separate link to connect Shenzhen with Zhongshan was originally proposed in 2008, but was shelved for several years amid concerns it could jeopardize the success of a bridge between Hong Kong, Zhuhai and Macau.
It cut travel time from Shenzhen to Zhongshan to less than 30 minutes.
Shenzhen created inter-city bus lines between it and Zhongshan.
In the first days after opening, users including drivers and passengers reported congestion on the bridge, some had to wait hours or made detours using the Humen Bridge instead.