In brief
The new Fehmarnbelt tunnel, set to open in 2029, will significantly reduce travel times between Hamburg and Copenhagen while boosting local economies.
The ambitious Fehmarnbelt tunnel is under construction beneath the Baltic Sea, signaling a significant leap in infrastructure designed to enhance travel connections between Denmark and Germany. Stretching for 18 kilometers (11 miles), this tunnel will be the longest pre-fabricated road and rail tunnel globally, designed to improve travel efficiency and stimulate economic interaction within Scandinavia and central Europe.Located on Lolland island in Denmark, the main construction site encompasses over 500 hectares (1,235 acres) and includes a harbor and manufacturing facility for tunnel segments referred to as "elements." According to Henrik Vincentsen, CEO of Femern, the state-owned enterprise managing the project, these sections are being constructed using a mix of reinforced steel and concrete, measuring 217 meters (712 feet) long and 42 meters wide. Unlike many underwater tunnels, which typically burrow through solid bedrock, the Fehmarnbelt will utilize 90 interconnected elements—an innovative assembly process reminiscent of building with Lego bricks.Costing around €7.4 billion ($8.1 billion; £6.3 billion), the project is primarily funded by Denmark, with additional support from a €1.3 billion contribution from the European Commission. This endeavor is among the largest infrastructure projects in the region and is linked to the European Union's broader strategy to fortify transport connections while promoting sustainable travel by reducing air travel dependency. Upon completion, travel between Rødbyhavn in Denmark and Puttgarten in Germany will only take 10 minutes by car or seven minutes by train, significantly quicker than the existing 45-minute ferry ride. Additionally, the new rail line will reduce travel times between Copenhagen and Hamburg from five hours to 2.5 hours, providing a "greener" alternative for both freight and passengers.Vincentsen emphasizes the tunnel's significance, stating that it connects not only Denmark and Germany but also links Scandinavia with central Europe—a beneficial development for all involved. The construction site, bustling with cranes, marks the beginning of a phase where the first elements of the tunnel are being immersed into the Baltic Sea, a complex operation given the weight and size of each segment. The process involves careful handling to ensure precise placement at a depth of 40 meters.Despite initial challenges from opposition groups worried about environmental impacts, including threats to local ecosystems, legal challenges were overcome, and construction commenced. Measures to mitigate ecological disturbances have been implemented, such as creating wetland areas from dredged materials.Once the tunnel opens in 2029, officials anticipate that over 100 trains and 12,000 cars will traverse it daily. The revenue generated from tolls is expected to offset the costs of state-backed loans used for construction, estimated to take around 40 years to repay. Additionally, local economies, particularly in Lolland—one of Denmark’s less affluent areas—are poised for a boost as new businesses and job opportunities are anticipated as a result of this monumental infrastructure project, which has long been awaited by local communities.
