Paris sewers

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Égouts de Paris

The Parisian sewer system dates back to the year 1370 when the first underground system was constructed under "rue Montmartre". Since then, consecutive French governments have enlarged the system to cover the city's population.

History[edit]

Until the Middle Ages, the drinking water in Paris was taken from the river Seine. The wastewater was poured onto fields or unpaved streets, and finally filtered back into the Seine.[1] Around 1200, Phillipe Auguste had the Parisian streets paved, incorporating a drain for waste water in their middle. In 1370 Hugues Aubriot, a Parisian provost had a vaulted, stone walled sewer built in the "rue Montmartre". This sewer collected the wastewater and took it to the "Ménilmontant" brook. However the wastewater was still drained in the open air.[2]

Under the reign of Louis XIV, a large ring sewer was built on the right bank, and the Biévre River was used as a sewer for the left bank of the Seine. On at least two occasions in the late 1700s, Paris refused to build an updated water system that scientists had studied. Women were actually carrying water from the river Seine to their residences in buckets. Voltaire wrote about it, saying that they "will not begrudge money for a Comic Opera, but will complain about building aqueducts worthy of Augustus". Louis Pasteur himself lost three children to typhoid. Under Napoleon I, the first Parisian vaulted sewer network was built that was 30 km long.

In 1855, as a part of his plan to improve the sanitation and traffic circulation in Paris, Napoleon III ordered the construction of new boulevards, aqueducts and sewers. His prefect for the Seine, Baron Haussmann, and the engineer Eugène Belgrand, designed the present Parisian sewer and water supply networks. Thus was built, more than a century ago, a double water supply network (one for drinking water and one for non drinking water) and a sewer network which was 600 km long in 1878.[3]

From Belgrand to the present[edit]

Ball used to clean sewer tunnels by pushing the water in front of the ball.[4]

Belgrand's successors went on extending the Parisian network: from 1914 to 1977, more than 1000 km of new sewers were built.

At the end of World War I, the 50 km² of sewage fields were no longer sufficient to protect the Seine. A general sewage treatment programme, designed to meet the needs for 50 years, was drawn up and became state-approved in 1935: this was the beginning of industrial sewage treatment.

The aim was to carry all the Parisian wastewater to the Achères treatment plant using a network of effluent channels. Since then, the Achères plant has continued to grow. At the end of 1970, it was one of the biggest sewage treatment plants in Europe. Its actual capacity is more than 2 million cubic metres per day.

This programme has been gradually upgraded: modernization of the Achères and Noisy-le-Grand (a small station farther upstream) facilities, construction of a new plant at Valenton, and expansion of the Colombes experimental station.

Modernization now and in the future[edit]

The aims of the modernization programme launched by the Mayor of Paris in 1991 were: to protect the Seine from storm overflow pollution by reducing the amount of untreated water discharged directly into the Seine, to reinforce the existing sewers, to enable the network to function better.

This project, which is costing an estimated 152 million euros over the first 5 years, will include:

  • the refurbishing of the old sewers in a bad condition,
  • the renovation of pumping stations,
  • the construction of new sewers,
  • the installation of measuring devices and automated flow control management,
  • the improving of the management of solid waste and grit,
  • the development of the computerised network management system.

No other city in the world has a sewer network like the one found in Paris. It now has 2,100 kilometres of tunnels. It houses, in addition to the drinking and non drinking water mains, telecommunication cables, pneumatic cables and traffic light management cables.

Every day, 1.2 million cubic metres of wastewater have to be collected. Every year, 15,000 cubic metres of solid waste are taken out and disposed of.

The sewer in fictional stories[edit]

Mannequin in the Museum

The sewer system is described in Victor Hugo's 1862 novel, Les Misérables (Part 5, Jean Valjean; Book II, The Intestine of the Leviathan, ch.1, The Land Impoverished by the Sea): "...Paris has another Paris under herself; a Paris of sewers; which has its streets, its crossings, its squares, its blind alleys, its arteries, and its circulation, which is slime, minus the human form."[2]

Le Fantôme de l'Opéra (English: The Phantom of the Opera) is a novel by French writer Gaston Leroux. It was first published as a serialisation, in Le Gaulois, from September 23, 1909 to January 8, 1910.

The sewer system plays a key part in H. L. Humes' 1958 novel, The Underground City. Humes, an American novelist, was a cofounder of The Paris Review.

Museum[edit]

Le Musée des Égouts de Paris, or the Paris Sewer Museum, is dedicated to the sewer system of Paris. Tours of the sewage system have been popular since the 1800s and are currently conducted at the sewers. Visitors are able to walk upon raised walkways directly above the sewage itself. The entrance is near the Pont de l'Alma. (coordinates: 48°51′45.4″N 2°18′9.1″E / 48.862611°N 2.302528°E / 48.862611; 2.302528).

See also[edit]

External links[edit]

References[edit]

  1. ^ "Visite publique des égouts de Paris". paris.fr. 2010. Retrieved February 23, 2010. [dead link]
  2. ^ a b "The Sewers of Paris:A Brief History". mtholyoke.edu. 2010. Retrieved February 23, 2010. 
  3. ^ "Les égouts parisiens". paris.fr. 2010. Retrieved February 23, 2010. 
  4. ^ yosomono (YEAR). "World’s biggest balls". gaijinass. Retrieved February 23, 2010. 

Donald Reid, Paris Sewers and Sewermen: Realities and Representations, Harvard Univ. Press