ABSTRACT
The Dreilindentunnel project is part of a larger development project which establishes a through-going train station in Lucerne. The project includes a 375 m long inner-city water crossing under the shallow water area of the Vierwaldstättersee. This paper addresses the comparison of the different tunnel types considered for the water crossing with their main challenges leading to the Immersed Tunnel as the preferred solution. The purpose of this paper is to disseminate knowledge of the Immersed Tunnel Technology and its benefits aiming to inspire owners to assess thoroughly the different tunnel types for each water crossing.
