Zwingen Birs

Various measures were planned and carried out on the Birs in Zwingen to enable fish passage and for flood protection: Lowering of the riverbed, reactivation of the former moat at Zwingen Castle (flood relief), flood embankment, replacement of a 3.5 m high drop with a block ramp and underpinning of the bank protection.

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  • Tiefbauamt Kanton Basel-Land
  • Hydraulic engineering


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