The result of the first Jura water correction, during which the course of the Alte Zihl was straightened, and the lake levels were lowered on average, is a predominantly cultivated landscape, which contrasts with the more dynamic wetlands along the silted-up lake shores and at the arm of the Alte Zihl. The corset of the Zihl Canal is alternately loosened to increase capacity and in reminiscence of the former meandering river courses, so that wetlands can expand into a continuum through the valley in the most self-regulating way possible in favor of differentiated habitats for humans and animals. After the first initial plantings, a cultivated arm of trees with a bordering willow cover establishes itself as a vegetative reaction to the changed soil conditions. As a counterpart to the contour in the form of a topographical step, the Zihl is accompanied by a dam on the cultivated land side, which, in combination with the revised inland canal infrastructure and newly planned pumping stations, satisfies the need for a more directly controllable water balance and enables the cultivation of a wide variety of different cultures. These two interventions in the topography fit into the linearity of the transport infrastructures in the valley and oscillate around the existing Zihl canal, which is technically and formally exaggerated by the renewable energy production in form of a wind power plant. The existing facilities of the last Swiss oil refinery will be adapted in the longer term by a wood processing industry. The exaggeration of existing spatial qualities is aimed at mutually fertilizing interactions in the sense of a contrapost, which helps the processes in the landscape to develop in an identity-forming way and radiates beyond the valley borders. Students: David Hauser | Andreas Hasler University: ETH Zurich | Prof. Martina Voser | Amplitudes | HS 21 Instagram: @dahauser_ | @an_hasler

first jura water correction.

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zwiegespräche.

contrapost.

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