Aquädukt Liesing

The Liesing Aqueduct is a landmark-protected historic structure of Vienna's water supply system in the city's 23rd district, spanning the valley of the river of the same name. Built between 1870 and 1873, it carries the First Vienna Mountain Spring Water Pipeline over a stretch of roughly 745 to 785 meters. The structure is made of brick, ashlar, and rubble stone, with the water channel built of tapered shaped bricks. Because moisture and temperature swings have badly damaged the materials, which are not frost-resistant, parts of the aqueduct are now secured with steel grating. It is protected under the Hague Convention, and together with the streets named after it, it shapes the character of the neighborhood.