New construction of elevated tank VI "Auf der Hardt"

Sustainable safeguarding of the drinking water supply

The new drinking water reservoir replaces the over 100-year-old elevated tank III and strengthens the long-term security of supply for Düsseldorf, Mettmann and Erkrath. The structure has a capacity of 10,000 m³ of drinking water and is being built as a solid reinforced concrete tank measuring around 63 metres long, 45 metres wide and 7 metres high.

The requirements of DVGW worksheet W 300 form the basis for planning, work preparation and execution. A hygiene quality assurance plan was derived from this, detailing topics such as employee training, material selection, joint sealing and the final hygiene inspection. For example, a special concrete is used that is both impermeable to water and hygienically safe.

At the same time, the structure is designed for a service life of at least 100 years - a requirement that demands the highest structural quality and precise execution. Parts of the existing listed building will be retained and integrated into the new overall concept.

The result is an overall project that preserves tradition, shapes the future and strengthens the regional drinking water supply in the long term.