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Chrutacher bridge over the Waldemme, Flühli

Photo: aerial view of the bridge construction site with a large crane; narrow river winds through fields
Facts and Figures
Company PORR SUISSE AG
PrincipalCanton Lucerne, Traffic and Infrastructure Construction
LocationFlühli - Switzerland
Type Bridge building
Runtime03.2017 - 03.2018

Replacement of an ageing bridge.

Increased capacity and improved traffic safety were the main aims of this bridge renovation project, awarded by the Office of Traffic and Infrastructure Construction, Lucerne Canton. The dilapidated round arch bridge, made from natural stone, no longer met current construction standards. Accordingly, it had to be demolished and replaced with a modern reinforced concrete bridge which would satisfy current requirements and standards. 

The renewed section of the canton route K36, running Schüpfheim–Flühli–Sörenberg, measures around 250m. The more than 50m-long and 12m-wide concrete bridge had to be completely manufactured on site: abutments were constructed, the shoring erected and the bridge substructure formed. After reinforcement and tension cables had been laid, 560m3 of concrete was poured in a single cast.