Cavico announced last week that its subsidiary, Cavico Bridge and Tunnel, had broken through the final section of the main headrace tunnel on the A Luoi hydropower project. Excavation of the 8.7 mile (14km), 21.3ft (6.49m) was a major part of the USD 53M contract.

Cavico was awarded a contract to excavate a 12km long, 5m wide headrace tunnel in July 2007. In addition to the headrace tunnel, the company was also contracted to excavate four sub-tunnels, a surge tank, a vertical shaft, and a service access road.

“We are very pleased to complete the tunnel construction at the A Luoi Hydropower project,” said Hung Manh Tran, executive vice president of Cavico. “This achievement is the result of many months of dedication and hard work by Cavico’s employees. Additionally, this breakthrough represents a major step toward completing our role in the A Luoi project.”