Mega-infrastructure milestone in Bavaria: Germany's extended tunnel, ranking fourth longest, begins operation
The Kramertunnel, a much-anticipated infrastructure project in Garmisch-Partenkirchen, Bavaria, is making significant strides towards completion. This new road tunnel is part of a larger bypass initiative aimed at alleviating traffic on the B23 road.
The construction process, however, has not been without its challenges. Interruptions have occurred multiple times, but the project is now back on track. Resumption of construction took place in January 2024, following the resolution of a legal dispute.
Currently, the inner shell of the emergency tunnel is nearing completion, while teams are also working diligently on the intermediate ceiling and the underground operational building in the northern section of the Kramertunnel. The drainage system in the southern tunnel section has been fully installed, and cable ducts and emergency walkways are being added.
In the southern tunnel section, interior work on both the road tunnel and emergency tunnel is underway. This includes the installation of essential infrastructure such as cable ducts and emergency walkways.
The plan to complete the Kramertunnel by the end of 2027 remains in place. This ambitious timeline is supported by the current pace of construction, which is being aided by the use of innovative digital planning methods, making it an official BIM (Building Information Modeling) pilot project.
The Kramertunnel project, situated in a sensitive alpine environment, presents complex geological, environmental, and technical challenges. Despite these challenges, it is setting new standards for sustainable infrastructure construction in the region.
Recent visits to the site, such as the educational excursion in August 2025, have highlighted these innovative construction and planning methods, offering a glimpse into the future of infrastructure development.
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- Innovative digital planning methods, such as Building Information Modeling (BIM), are being implemented in the Kramertunnel project to ensure the ambitious timeline of completion by the end of 2027.
- The Kramertunnel, situated in a sensitive alpine environment, is setting new standards for sustainable infrastructure construction in the region with the help of technology like BIM, showcasing advancements in the field.
