Spreetunnel Friedrichshagen

The underground passage extends 120 meters beneath the Spree River, connecting Kämmereiheide near Köpenick with Müggelpark in the Friedrichshagen district of Berlin.

The tunnel, completed in 1927 for one million Reichsmarks, replaced a ferry service and became Germany's first reinforced concrete tunnel constructed using compressed air caisson technique.

The tunnel functions as part of the E11 long-distance hiking trail and connects visitors to multiple swimming spots known locally as Läufer and Teppich.

The underground passage maintains continuous pedestrian access throughout the year, with renovated lighting systems and stairways following the 2016 restoration project.

The tunnel's construction required submerging two separate concrete caisson sections underwater, joining them precisely to maintain river navigation above.

Location: Berlin

Length: 120 m

GPS coordinates: 52.44440,13.62530

Latest update: May 15, 2025 02:19