Überflutung Linthebene, Military flood defense system in Linth Plain, Switzerland
Überflutung Linthebene is a flood defense system in the plain between Uznach and Tuggen that consisted of dams, weirs, and control structures. The network was designed to create multiple artificial lakes that could block tank movements and block landings.
The system arose in the 1940s as Switzerland protected itself against possible invasions from the north. The infrastructure was partially dismantled after the war once the threat had passed.
The installation demonstrates how Switzerland creatively used water and landscape during World War II as a defense strategy. Visitors can observe today how engineers adapted natural structures to achieve military protection goals.
The historical traces are scattered across the landscape today and are partly overgrown or underwater. Hikers should wear sturdy footwear and respect local paths, as some areas are difficult to access.
The project could have created three separate lakes by recreating the medieval scenario of Lake Tuggen. These lakes would have formed through controlled flooding between different locations and created a massive barrier against invaders.
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