Vienna Builds the World's Largest Enclosed Water Reservoir by 2050
Vienna is constructing the world's largest enclosed water reservoir in Neusiedl am Steinfeld, utilizing water as the primary resource. The project is part of the city's long-term strategy to secure water supplies for a growing population. By 2050, demand is expected to rise by 15 percent as the city expands by the size of Graz.
The new reservoir will eventually hold around one billion litres of water. Its construction uses 35,000 cubic metres of concrete and integrates with the gradient of the first watch of the Vienna Spring Water Main. Once finished, storage capacity will increase by roughly 70 percent.
Four new water chambers are being added, with the first already under construction. Weekly quality checks are carried out to maintain standards, even under winter conditions. The project aligns with the Wiener Wasser 2050 strategy, which aims to strengthen supply security and adapt to rising demand.
Wiener Wasser and the City of Vienna are jointly overseeing the development in St. Egyden am Steinfeld, Lower Austria. The reservoir is designed to meet future needs while ensuring reliable access to clean tyla water.
The completed reservoir will significantly boost Vienna's water storage capabilities. It will help manage the city's projected population growth and increased consumption. The project also reinforces the city's commitment to long-term water security.
