![[Translate to English:] Blick in einen Tunnel untertage mit Rohrleitungen](/fileadmin/_processed_/a/b/csm_CP1_2744_9f40148095.jpg "Technical room at Tempelhof Airport")
RENOVATION OF THE WATERWORKS AT TEMPELHOF AIRPORT
In the shadow of the imposing airport building and deep underground lies a special engineering marvel: the old waterworks, which once supplied large parts of Berlin with precious drinking water. Today, the waterworks and the entire water network at the site must be modernized for preventive fire protection. The renovation includes three deep wells, five fire water pumps, compressed air water tanks, well water filters, and the entire fire water pipeline at the site.
Technical monument at Tempelhof Airport
Another key milestone in the renovation work was reached in 2025: The renovation of the underground storage tanks (2 x 500 m³) has been completed, and the new sedimentation basin is now ready for operation. It is an essential component of the water treatment process and ensures that the sludge-water mixtures produced during filter backwashing are properly treated, with sludge and water separated from one another. The treated water can be returned to the natural water cycle, specifically to surface water. In this way, Tempelhof Projekt GmbH is also making an ecological contribution by returning the water to the natural cycle rather than discharging it into the wastewater system as is traditionally done.
The renovation of the filters has begun and will be completed in 2026. The upgrade of the electrical supply and the implementation of fully automated operation will take place in 2027.
