The tunnel, which Cavico began in December 2003, is nearly 2967m long and 8.2m wide. Cavico and the project’s main contractor, Vinaconex, are working together to complete the remainder of the project.

The company will now focus on completing the concrete finish work for the tunnel, which is valued at approximately US$12.36M over the next two years.

The Buon Kuop project has been valued at approximately US$290M. The construction presents the most complicated geological conditions of any current infrastructure project in Vietnam.