Águas Livres Aqueduct
Encyclopedia
Aqueduct
An aqueduct is a water supply or navigable channel constructed to convey water. In modern engineering, the term is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose....
in the city of Lisbon
Lisbon
Lisbon is the capital city and largest city of Portugal with a population of 545,245 within its administrative limits on a land area of . The urban area of Lisbon extends beyond the administrative city limits with a population of 3 million on an area of , making it the 9th most populous urban...
, Portugal
Portugal
Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...
. It is one of the most remarkable examples of 18th-century Portuguese engineering
Engineering
Engineering is the discipline, art, skill and profession of acquiring and applying scientific, mathematical, economic, social, and practical knowledge, in order to design and build structures, machines, devices, systems, materials and processes that safely realize improvements to the lives of...
. The main course of the aqueduct covers 18 km, but the whole network of canals extends through nearly 58 km.
The city of Lisbon has always suffered from the lack of drinking water
Drinking water
Drinking water or potable water is water pure enough to be consumed or used with low risk of immediate or long term harm. In most developed countries, the water supplied to households, commerce and industry is all of drinking water standard, even though only a very small proportion is actually...
, and King John V decided to build an aqueduct to bring water from sources in the parish
Freguesia
Freguesia is the Portuguese term for a secondary local administrative unit in Portugal and some of its former colonies, and a former secondary local administrative unit in Macau, roughly equivalent to an administrative parish. A freguesia is a subdivision of a concelho, the Portuguese synonym term...
of Caneças
Caneças
Caneças is a Portuguese civil parish in the municipality of Odivelas, a suburb of the Greater Lisbon region....
, in the modern municipality of Odivelas
Odivelas
Odivelas is a civil parish in Odivelas Municipality in Lisbon Metropolitan Area, Portugal.. The city has a population of 50,846. The municipality is composed of 7 parishes, and is located in the District of Lisbon....
. The project was paid for by a special sales tax
Sales tax
A sales tax is a tax, usually paid by the consumer at the point of purchase, itemized separately from the base price, for certain goods and services. The tax amount is usually calculated by applying a percentage rate to the taxable price of a sale....
on beef
Beef
Beef is the culinary name for meat from bovines, especially domestic cattle. Beef can be harvested from cows, bulls, heifers or steers. It is one of the principal meats used in the cuisine of the Middle East , Australia, Argentina, Brazil, Europe and the United States, and is also important in...
, olive oil
Olive oil
Olive oil is an oil obtained from the olive , a traditional tree crop of the Mediterranean Basin. It is commonly used in cooking, cosmetics, pharmaceuticals, and soaps and as a fuel for traditional oil lamps...
, wine
Wine
Wine is an alcoholic beverage, made of fermented fruit juice, usually from grapes. The natural chemical balance of grapes lets them ferment without the addition of sugars, acids, enzymes, or other nutrients. Grape wine is produced by fermenting crushed grapes using various types of yeast. Yeast...
, and other products.
Construction started in 1731 under the direction of Italian architect
Architecture of Italy
Architecture of Italy, often called Italian architecture refers to all forms of this art in Italy. Italy has a very broad and diverse architectural style, which cannot be simply classified by period, but also by region, due to Italy's division into several city-states until 1861. However, this has...
Antonio Canevari, replaced in 1732 by a group of Portuguese architects and engineers, including Manuel da Maia, Azevedo Fortes and José da Silva Pais
José da Silva Pais
José da Silva Pais was a Portuguese soldier and colony administrator.He was involved in diverse situations in the disputed territories between the Portuguese and Spanish in the territory that today is the South region in Brazil...
. Between 1733 and 1736, the project was directed by Manuel da Maia, who in turn was replaced by Custódio Vieira, who would remain at the head of the project until around 1747.
Custódio Vieira conceived the centerpiece of the aqueduct, the arches over the Alcantara valley, completed in 1744. A total of 35 arches cross the valley, covering 941 m. The tallest arches reach a height of 65 m, and many are pointed, reminiscent of arches in Gothic style
Gothic architecture
Gothic architecture is a style of architecture that flourished during the high and late medieval period. It evolved from Romanesque architecture and was succeeded by Renaissance architecture....
. It is considered a masterpiece of engineering in the Baroque
Baroque
The Baroque is a period and the style that used exaggerated motion and clear, easily interpreted detail to produce drama, tension, exuberance, and grandeur in sculpture, painting, literature, dance, and music...
period.
In 1748, although the project was still unfinished, the aqueduct finally started to bring water to the city of Lisbon, a fact celebrated in a commemorative arch built in the Amoreiras neighbourhood. From this period on, construction was overseen by other architects, including Carlos Mardel of Hungary
Hungary
Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...
and others. During the reigns of José I and Maria I
Maria I of Portugal
Maria I was Queen regnant of Portugal and the Algarves from 1777 until her death. Known as Maria the Pious , or Maria the Mad , she was the first undisputed Queen regnant of Portugal...
, the network of canal
Canal
Canals are man-made channels for water. There are two types of canal:#Waterways: navigable transportation canals used for carrying ships and boats shipping goods and conveying people, further subdivided into two kinds:...
s and fountain
Fountain
A fountain is a piece of architecture which pours water into a basin or jets it into the air either to supply drinking water or for decorative or dramatic effect....
s was greatly enlarged.
The Mãe d'Água (Mother of the Water) reservoir
Reservoir
A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...
of the Amoreiras, the largest of the water reservoirs, was finished in 1834. This reservoir, with a capacity of 5,500 m³ of water, was designed by Carlos Mardel. It is now deactivated and can be visited as part of the Museu da Água (Water Museum).
How to get there
The aqueduct is open for public visitors, Monday to Saturday 10.00 a.m. - 6.00 p.m. Adult ticket costs 1.50 Euros. The entrance is on the "city side" only.(November 2011)