Optimization of 4 Fish Passage Facilities in the Giegel Aa and Hopstener Aa; River Engineering Works

This tender concerns the optimization of four fish passage facilities located in the Giegel Aa and Hopstener Aa river systems in Germany. The contracting authority is seeking specialized civil engineering and environmental construction firms to undertake these works. The project involves improving the ecological connectivity of these water bodies by enhancing the functionality of existing fish ladders or implementing new solutions to facilitate fish migration. Typical requirements for such a tender include detailed site surveys, design and engineering for fish passage structures (e.g., fish ladders, bypass channels, Denil fishways), river bank stabilization, excavation and earthworks, concrete works, installation of hydraulic control structures, and ecological restoration measures. Bidders are expected to have proven expertise in hydraulic engineering, riverine habitat restoration, and environmental construction projects, with a strong understanding of fish migration requirements. The tender will likely evaluate proposals based on technical approach, environmental impact assessment, project management capabilities, adherence to timelines, and cost. This procurement is vital for improving the ecological status of the aquatic ecosystems.