Budapest beneath the surface
The first known underground sewers on the Pest side appeared in the late 18th century. Rapid urban growth in the 19th century, followed by the 1873 unification of Pest, Buda and Óbuda, made the creation of a unified modern sewer network increasingly urgent.
Large-scale sewer construction accelerated at the end of the 19th century. The proximity of the Danube, varying ground levels and the danger of flooding required special engineering solutions. Several old brick-vaulted sections remain part of the system today.
Photo gallery
