📋 Tender Overview
The Ministry of the Environment, Climate and Biodiversity, in collaboration with the Alzette and Chiers river partnerships, announces the launch of an operation to clean the banks and flood zones of the Alzette and Chiers rivers as well as their tributaries. This action will take place from February 23 to March 7, 2026. This cross-border initiative is organized in close collaboration with the municipalities involved in the Alzette and Chiers watercourse partnerships, the community of Pays Hat Val dAlzette municipalities, located in the French Alzette watershed, as well as with the Grand Longwy conurbation and the Semois-Chiers river contract located in the Chiers watershed. Its objective is to remove waste and anthropogenic deposits accumulated along the banks and in flood plains, in order to protect watercourses and their habitats. Every year, a lot of waste - plastics, packaging, metal objects, bulky items and even construction residue - is deposited in the beds, on the banks and in flood zones of watercourses. Their presence has several origins: intentional deposits, transport by wind, entrainment by runoff water or even transport via pipe systems. Whatever its origin, this waste constitutes a source of pollution and can: obstruct the circulation of water and promote flooding; degrade the physicochemical quality of water; impair visual quality; harm aquatic and riparian fauna and flora, particularly through ingestion or entanglement. By weakening ecosystems already under great pressure, this waste compromises the proper functioning of aquatic environments. By removing this waste, municipalities directly contribute to the preservation of biodiversity and support the return of more natural and resilient rivers. Carried out in addition to renaturation projects, measures of the River Basin Management Plan and actions supported within the framework of Naturpakt, this action is a continuation of the joint efforts of the State and municipalities to promote the emergence of living rivers capable of regaining balanced functioning. In total, thirteen Luxembourg municipalities will participate in the mobilization for the cleaning of the banks of the Alzette and the Chiers: For the Alzette watercourse partnership: Esch-sur-Alzette, Dudelange, Rumelange, Kayl, Sanem, Schifflange, Mondercange, Bettembourg, Roeser and Hesperange. For the Chiers watercourse partnership: Differdange, Bascharage, Petange and Sanem.
