The memory of the sandmen remains only in the names of some places, such as Ponte Sabbionari, whose name derives from the people who practised this now disappeared trade. But who were the sandmen? Until 1987, the gravel and sand used as building materials were extracted from the Brenta River and then transported by river. The sandmen were those who, with the help of a 'padelón', a canvas bag that acted as a filter, holding back the materials but allowing the water to flow out, were responsible for extracting the sand and gravel from the sea bed, loading their barge and then attempting the even more laborious unloading of the materials. Technological development has led to the slow decline and then death of this profession, which has long since ceased to exist.