City of Vienna Menu Menu

Vienna’s sewer system

99 percent of all Viennese households are connected to the city’s 2,400 km sewer network. Every day, 15 tonnes of deposits are removed from the sewers to ensure a seamless operation of the sewer system.

Customer service

Sewer worker looking out of a manhole, two sewer workers standing to his right and left

An overview of the services of Wien Kanal (WKN) and how to contact us.

24-hour emergency hotline

Woman and man in a flooded cellar

Blocked sewers, burst pipes, sewer smell, keys dropped in the sewer grate? Our 24-hour emergency hotline can help you.

History of Vienna's sewer system

From Roman times to the 21st century. Today, our focus is on wastewater treatment and water protection.

The Third Man Tour

Visit the locations of the film classic in Vienna's sewer system and learn more about the sewers and work in the underground.

E-government services

  • Sewer system
    House sewer, oil, petrol and grease separators, septic tanks, soakage pits and house sewerage plants ...

Contact

City of Vienna - Vienna Waste Water Management

Contact Form

Data protection: We use cookies to display City of Vienna content relevant to your interests on third-party websites. You can revoke your consent and change your selection at any time under Privacy: Information and settings. .