Rewetting works at Wallener Au

Summary

The tender concerns construction and infrastructure works to raise water levels and restore wetland conditions in the Wallener Au project area in Schleswig-Holstein. The works are divided into two lots. Lot 1 covers the improvement of approximately 1,200 m of agricultural access roads and, where necessary, the removal of fencing along approximately 5,800 m. Lot 2 covers drainage searches and interruptions, construction of low embankments, filling of up to 250 depressions and 80 field drains, ditch clearance, construction of fixed and adjustable ditch weirs, installation of two adjustable overflow boxes and one pipe crossing, and repair of approximately 28 ditch crossings. Lot 1 may start no earlier than 28 September 2026 and Lot 2 no earlier than 27 October 2026; all works must be completed by 28 February 2027. The tender deadline is 24 September 2026 at 11:00. The bidder must provide suitable machinery and experienced machine operators, prove experience working on peat soils, submit the required qualifications and supporting documents, and comply with the specified environmental, reporting, waste-disposal and labour-condition requirements.