Haivan Pass Tunnel
London Bridge Associates (LBA) was employed by Nippon Koei to provide the Emergency Response procedures, Emergency Response training, Emergency Exercises and Tunnel System commissioning
Client Nippon Koei
Skills Emergency Response Design, Emergency Response Procedures, Emergency Response Training, Commissioning Exercises
Value $ 133 million
The Hai Van Tunnel is the longest tunnel in Southeast Asia at 6.28km, it lies on Highway 1 between the two cities of Danang and Huế in central Vietnam. The Hai Van Pass has long been recognised as a major bottleneck. The concept of a tunnel to bypass the long route over the top had long been sought.
Construction began in April 2001 as a joint venture between Nippon Koei Company Limited Japan and Louis Berger International Inc., USA with the Vietnamese Transport Engineering Design Corporation (TEDI) providing consultation on the project. 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 was officially opened in June 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. Currently the single tunnel has one lane of traffic in each direction. A toll of VND25,000 is payable for cars and minibuses. Motorcycles, cycles and pedestrians are not allowed in the tunnel but a new shuttle service will begin in November 2006. This shuttle service will operate around the clock with a reduced overnight service and charge a daytime fare of VND12,000 per motorcycle, VND5,000 per bicycle and VND3,000 per person. A small waiting area is being established at each end of the tunnel where visitors can take photographs and watch a documentary about the making of the tunnel
The tunnel reduces the distance between Danang and Huế by 20km and saves between 30 minutes and an hour on travelling times over the old Hai Van Pass route.
LBA provided a sub-consultancy role to Nippon Koei for the design of emergency response procedures, emergency response training and design of the multi-agency major emergency exercise and tunnel system commissioning exercises. This role involved working closely with the project management, the appointed tunnel operator HAMADECO and the M & E providers National Panasonic and ABB.
- The success of the project depended upon the effective implementation of emergency response procedures. LBA coordinated the testing of these through major multi-agency exercises, as well as the commissioning exercises for the complex zero velocity ventilation system; supported by electrostatic precipitators to clean heavy particulates from the tunnel atmosphere. Other systems tested during the commissioning included communications systems, heat detection, VMS signing and CCTV.
- LBA’s inputs were achieved with one week to scope the work in November 2004 and five weeks between May and June 2005 to set up, organise and implement the training and commissioning exercises in preparation for the opening of the first major road tunnel in Vietnam on the 5th June 2005.