Eugène Belgrand
Encyclopedia
Eugène Belgrand was a French
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 engineer who made significant contributions to the modernization of the Paris
Paris
Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

ian sewer system
Sanitary sewer
A sanitary sewer is a separate underground carriage system specifically for transporting sewage from houses and commercial buildings to treatment or disposal. Sanitary sewers serving industrial areas also carry industrial wastewater...

 during the 19th century rebuilding of Paris
Haussmann's renovation of Paris
Haussmann's Renovation of Paris, or the Haussmann Plan, was a modernization program of Paris commissioned by Napoléon III and led by the Seine prefect, Baron Georges-Eugène Haussmann, between 1853 and 1870...

. Much of Belgrand's work remains in use today.

Civil engineering

Prior to 1850, the water system in Paris was inadequate for its growing population. Waste water was discharged into the Seine
Seine
The Seine is a -long river and an important commercial waterway within the Paris Basin in the north of France. It rises at Saint-Seine near Dijon in northeastern France in the Langres plateau, flowing through Paris and into the English Channel at Le Havre . It is navigable by ocean-going vessels...

, a primary source of the critically limited supply of drinking water. Baron Haussmann
Baron Haussmann
Georges-Eugène Haussmann, commonly known as Baron Haussmann , was a French civic planner whose name is associated with the rebuilding of Paris...

, tasked by Napoléon III
Napoleon III of France
Louis-Napoléon Bonaparte was the President of the French Second Republic and as Napoleon III, the ruler of the Second French Empire. He was the nephew and heir of Napoleon I, christened as Charles Louis Napoléon Bonaparte...

 to modernize the city, appointed Belgrand as Director of Water and Sewers of Paris in March 1855. Hausmann had been impressed by the École Polytechnique
École Polytechnique
The École Polytechnique is a state-run institution of higher education and research in Palaiseau, Essonne, France, near Paris. Polytechnique is renowned for its four year undergraduate/graduate Master's program...

 graduate's application of geology to water engineering during the design of a fountain in Avallon
Avallon
Avallon is a commune in the Yonne department in Burgundy in center-eastern France.-Geography:Avallon is located 50 km south-southeast of Auxerre, served by a branch of the Paris-Lyon railway and by exit 22 of the A6 motorway...

.

Belgrand embarked on an ambitious project. The tunnels he designed were intended to be clean, easily accessible, and substantially larger than the previous Parisian underground. Under his guidance, Paris's sewer system expanded fourfold between 1852 and 1869. He also addressed the city's fresh water needs, constructing a system of aqueducts that nearly doubled the amount of water available per person per day and quadrupled the number of homes with running water.

Public reaction to the improvements was overwhelmingly favorable, supported by tours of the newly-constructed sewer system and a series of photographs taken by Nadar
Nadar (photographer)
Félix Nadar was the pseudonym of Gaspard-Félix Tournachon , a French photographer, caricaturist, journalist, novelist and balloonist. Some photographs by Nadar are marked "P. Nadar" for "Photographie Nadar" .-Life: born in April 1820 in Paris...

, pioneering the use of artificial lighting
Lighting
Lighting or illumination is the deliberate application of light to achieve some practical or aesthetic effect. Lighting includes the use of both artificial light sources such as lamps and light fixtures, as well as natural illumination by capturing daylight...

 for photography. Belgrand shared his insights with others, writing "monumental publications" detailing his work and the science behind it.

Belgrand's projects remain "one of the most extensive urban sewer systems in the world" and served as a "transitional phase" leading to modern wastewater processing.

Commemoration

To commemorate his work in Parisian civil engineering, Belgrand's name is one of 72 names engraved
The 72 names on the Eiffel Tower
On the Eiffel Tower, seventy-two names of French scientists, engineers and some other notable people are engraved in recognition of their contributions. This is according to the design by Gustave Eiffel. The engravings are found on the sides of the tower under the first balcony...

 on the Eiffel Tower
Eiffel Tower
The Eiffel Tower is a puddle iron lattice tower located on the Champ de Mars in Paris. Built in 1889, it has become both a global icon of France and one of the most recognizable structures in the world...

, opposite the École Militaire
École Militaire
The École Militaire is a vast complex of buildings housing various military training facilities located in the 7th arrondissement of Paris, France, southeast of the Champ de Mars....

. The main gallery of the Paris Sewer Museum
Paris Sewer Museum
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:...

is also named in his honor, as is a street in Paris.

Related

rue Belgrand, Paris
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