Hochwasserrückhaltebecken Jonenbach, Flood retention basin in Zürich, Switzerland
The Jonenbach detention basin consists of an earth-fill dam spanning 163 meters, containing structures for bottom outlet and spillway regulation.
The facility was constructed between 2004 and 2007 following severe flooding events in 1994 and 1999 that caused damages of 11.4 million Swiss francs.
The integration of fish ladders and natural elements in the design reflects Swiss engineering practices that prioritize environmental protection alongside infrastructure development.
During normal conditions, water flows freely through the dam, but the basin can retain 392,000 cubic meters of water when flooding occurs.
The detention basin successfully demonstrated its effectiveness during its first year, preventing floods in both 2007 and 2008 through controlled water management.
Location: Zürich
GPS coordinates: 47.27440,8.45778
Latest update: March 6, 2025 00:28
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Jonenbachstrasse 42–44 farmhouse
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Buechstock residential house
2.9 kmReviews
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