Ormo skärmanläggning, Flood control barrage in Kungälv Municipality, Sweden.
Ormo skärmanläggning is a flood control structure in Kungälv Municipality that manages water flow in the Nordre älv river with two submerged screens. The installation allows river navigation to continue while regulating freshwater levels for the surrounding area.
The installation began operating in 1934 to manage water flow between the Nordre älv and the Gothenburg branch of the Göta älv river system. It represented an important development in regional water management infrastructure.
The structure represents Swedish engineering expertise in water management, maintaining the balance between maritime traffic and freshwater supply for local communities.
The structure has two navigation channels that accommodate different vessel sizes along the river. Visitors can observe the installation from the riverbank or experience it during boat trips through the area.
The two screens normally rest on the riverbed and only rise when water flow drops below a critical threshold. This simple yet effective mechanism represents an early example of adaptive water management that responds to natural conditions.
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