The excavators drive up in the Töss, in the middle of the idyllic nature
The lower Leisental becomes a four-week construction site. The canton has to re-stabilize the river bed.
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–In the lower Leisental, work has started to stabilize the river bed. Photo: Marc Dahinden
Photo : Marc Dahinden
The canton is rehabilitating the river bed of the Töss on a 500 meter long section in the lower Leisental. The Töss-typical thresholds for securing the river bed are dilapidated, writes the Office for Waste, Water, Energy and Air in an information letter.
The sleepers stabilize the river bed, but are dilapidated. Without it, the Töss would dig itself deeper and deeper because the fast-flowing, straightened river carries with it more debris than it carries. If the bottom sags, the groundwater level also sinks, which in turn would make it more difficult to extract groundwater.
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