Construction
The project's major constructors were a Vietnam-Japan joint venture, Hazama-Cienco 6, and a joint venture between Korea's Dong Ah construction company and Vietnam's Song Da Construction Corporation.
The tunnel officially opened on June 5, 2005.
The main tunnel is 11.9 meters wide. A second tunnel running alongside the main tunnel is currently used for maintenance and emergencies but it is planned to expand this at a later date as traffic increases. It is connected to the main tunnel by 15 cross-tunnels. The tunnels have lighting, fire alarms, communication, water supply and treatment, ventilation fans, and radio broadcast systems.
The tunnel subsequently has received an award for quality by the American Construction Management Association.
Read more about this topic: Hai Van Tunnel
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