Germany – Forestry services – Gewässerinstandsetzung 2026-2029; Los 1: BAB 4, Los 2: BAB 9

The Federal Autobahn GmbH plans to carry out maintenance work for watercourse-related compensation and replacement measures between 2026 and 2029, primarily along the A4 and A9 motorways. The measures are divided into annually recurring maintenance work and case-specific repairs. The areas covered by Lot 1 – A4 – are located in the districts of Saale-Holzland, the area surrounding the city of Erfurt, Weimarer Land, Jena, and Gotha. Lot 1 - BAB 4 comprises the following general quantities: Profiling watercourse beds with excavation approx. 4,000 m²; mowing work around individual watercourses approx. 22,000 m²; fish removal from watercourses approx. 4 operations; cutting reeds in watercourses approx. 20,000 m²; tree removal approx. 140 trees; rejuvenation of woody vegetation approx. 800 m²; soil removal of silt approx. 2,500 m³; cutting reeds (additionally, not in watercourses) approx. 1,400 m²; constructing/renewing overflow channels approx. 190 m²; fish removal from ponds approx. 4 operations; renewing a weir approx. 1; cutting trees approx. 25 trees; soil excavation approx. 2,000 m³; clearing scrub from extensive areas approx. 2,000 m²; profiling pond beds and banks with sediment removal approx. 3,000 m² Dam crest reinforcement; approx. 250 m² Watercourse weed removal; approx. 800 m² Sealing work on pond bottom & flowing water; approx. 120 m³ Sand trap; approx. 100 m² Tree removal; approx. 240 willows; Slope stabilization; approx. 100 m² Tree removal; approx. 160 trees; Mowing of watercourse surroundings; approx. 25,000 m² Profiling of pond bottom & slopes; approx. 2,000 m² Tree removal surroundings; approx. 3,000 m² Supply of gravel for watercourses; approx. 400 m³ Supply of limestone chippings for watercourses; approx. 200 m³ The Federal Autobahn GmbH plans to carry out maintenance work for watercourse-related compensation and replacement measures between 2026 and 2029, primarily along the A4 and A9 motorways. The measures are divided into annually recurring...