Aqueduto das Aguas Livres: “Aqueduct of free water” is the official name for Portugals great engineering achievement of the 18th century.
Althought Lisbon is almost enclosed by the Tejo river, water shortage was always the main problem for the metropolis. King Joao V. wanted to solve that problem, and arranged the building of this construction.
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The aqueduct was financed by the citizens of Lisbon through a certain tax called “water contribution”. The lenght of the project amounts 18,5 kilometres. The transport of the water takes place subterranean and overground.
The most impressive part of the aqueduct is the one kilometre bridging over the Alcantara valley. 35 arches are included in the monumental building which has a height of 66 metres.
It’s possible to take a walk on the aqueduct over the Alcantara valley, and enjoy the wonderful view.