Revitalisation of the area around the river Sihl

Project overview

The Zurich-South motorway triangle is located in an important urban recreational area. As compensation for this intervention in nature and the landscape, the area around the river Sihl has been restored in a natural approach over a length of 850 metres, and flood protection has been improved. The project meets hydraulic engineering requirements while also taking into account landscaping and ecological aspects.

Our services

Preparation of framework conditions for study competition, hydraulic engineering supervision of study participants in design competition, construction project. Site supervision. Performance reviews from 2009 to 2018.

Expertise involved

Flood protection, Hydraulic engineering


Grün Stadt Zürich (GSZ) in competition Office of Waste, Water, Energy and Air (WWEA), canton of Zurich: project planning, implementation, performance reviews