Initiates Ecological Restoration Project – Lichtenberg Takes Initiative

The Obersee in Alt-Hohenschönhausen is undergoing a significant transformation, as Eggers Umwelttechnik GmbH has been awarded the construction work for the dredging project. This project, funded by the Senate Department for Mobility, Transport, Climate Protection and Environment through the Small Water Bodies Program, aims to ensure long-term water quality and improve ecological conditions in the lake.

The dredging process involves a dredger that sucks up a sludge-water mixture and pumps it into a mobile screening press for sediment separation. The cleaned water flows back into the lake, while the dewatered sludge is removed. An ecological monitoring team accompanies the project to protect animals and plants during the works.

The Obersee, an artificially created body of water, is fed exclusively by rainwater. Each year, sediment accumulates in the eastern bay of the Obersee, reducing the performance of the filter pump. This dredging project is a necessary step to maintain the lake's health and keep it clean.

The project also combines ecological goals with improving the quality of life for residents. In addition to the dredging, natural structures, such as stones and new reed plantations, are being created to provide habitats for animals during the construction process.

District Councilor Filiz Keküllüoğlu (The Greens) emphasises the importance of public relations in the project. To this end, the public construction site tour of the Obersee dredging project is scheduled for Monday, 8 September 2025, at 5 pm. The meeting point for the tour is the eastern shoreline of the Obersee.

The Lichtenberg district office has been operating a lake water filter plant at the Obersee for about ten years. The responsible authority for the dredging is the Berliner Wasserbetriebe, with the Environmental and Nature Conservation Office Lichtenberg as the client, and AquaConstruct providing support.

It is important to note that public access to the Obersee park is partially limited due to construction work. The costs of the measure amount to approximately 967,000 euros, and the dredging is scheduled to be completed in December 2025.

This project is a significant step towards preserving the Obersee's ecological balance and ensuring its continued enjoyment by residents and visitors alike. By addressing the sediment accumulation issue, the dredging project will help maintain the lake's water quality and support a thriving ecosystem.