Study Visit to Vienna’s New Sewage Storage Tunnel

Date: 30.09.2026
 

On September 17, 2026 the study visit to the construction site of Vienna’s new 9 km long sewage storage tunnel took place. Participants visited the exhibition “über unten” (about under) at the starting point of the tunnel construction and gained a close insight into Vienna’s sewage system and CSO management. Thilo Lehmann from Wienkanal (City of Vienna) was giving the participants a guided technical tour.