Renovation of the western revetment at Leyhörn

Summary

The tender concerns the repair and renewal of the stone revetment on the western dike of the Leyhörn storage basin over a length of about 750 metres. The contractor must dismantle the damaged existing revetment, process and reuse the material as a new substructure, install a new two-layer natural stone revetment, carry out partial and full grouting with colloidal mortar, adjust the crest level and build an asphalt revetment above it. The work also includes drainage, stability, environmental compliance and nature protection requirements. Execution is planned for 2026/2027.