Introducing Immersed Tunnels to New and Developing Global Markets
Less than 200 immersed tunnels have been constructed around the world and many countries have not yet embraced the technology. It can offer a better way to cross a waterway for environmental, geometric or risk mitigation reasons. When implementing an immersed tunnel project for the first time it is important to gain a broad understanding of the technology and use the knowledge of experienced practitioners to avoid the pitfalls associated with an unfamiliar technology. This paper describes some of the more unusual aspect of the technology but also shows that the majority of construction techniques are within the capabilities of most developed construction industries around the globe. Some suggestions are given for how to approach an immersed tunnel project for the first time and industry guidance documents are identified that may be useful for newcomers to the method.