Double Radial Gates for the Brunau Ice-Retention Weir in Switzerland

by Henk Brouwer, Zwag Ltd, Dottinger, Switzerland,

Document Type: Proceeding Paper

Part of: Waterpower '91: A New View of Hydro Resources


During the springtime thaw, the River Sihl, which flows from the south into the city of Zurich, Switzerland, carries large quantities of ice flow. In 1968, to protect the footings of a proposed new highway crossing the river, and to ensure increased protection for existing stuructures in the river bed, city authorities decided to construct a new regulating weir. This weir would act as a regulating device on the upstream retention reservoir. This paper discuss the design criteria, project staging, construction phases, and other aspects of the subject.

Subject Headings: High-rise buildings | Radiation | Ice | Weirs | River flow | Urban areas | Footings | Highways and roads | Switzerland | Europe

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