One of the most high-risk moments in tunnel construction is when the tunnel elements are immersed. Failure is not an option, as the potential (economic) damage in the event of a delay is too great. Naturally, a specialist is selected who has proven capabilities in difficult immersion projects. Mergor is one of the world's top players in this market.

Mergor’s field of expertise comprehends the engineering and preparations for tunnel immersion projects, as well as their execution including the relevant marine and diving activities. We like to relieve our partners and clients of as much work as possible. For example, in addition to the design and engineering of temporary and permanent structures, we also take responsibility for the work planning, schedules, checklists and detailed method statements for the entire immersion process. Naturally, operations are always preceded by extensive risk analyses. The survey required during immersion in order to enable precise positioning of the tunnel units is performed by our sister company Geocon