Émiland Gauthey
Émiland Gauthey
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Émiland Gauthey

Émiland Marie Gauthey ((1732-12-03)3 December 1732 in Chalon-sur-Saône(1806-07-14)14 July 1806 in Paris) was a French mathematician, civil engineer and architect. As an engineer for the Estates of Burgundy (French: États de Bourgogne), he was the creator of a great deal of the region's civil infrastructure, such as the Canal du Centre between Digoin and Chalon-sur-Saône (1784–1793), bridges including those at Navilly (1782–1790) and Gueugnon (1784–1787), and buildings such as the Eglise Saint-Pierre-et-Saint-Paul ("Church of St Peter and St Paul") at Givry (1772 – 1791) and the theatre at Chalon-sur-Saône.

Gauthey became Chief Engineer of the États de Bourgogne in 1782, on the death of his predecessor and close collaborator, Thomas Dumorey. After the French Revolution, he held several important posts in the Haute administration des Ponts-et Chaussées ("High Commission for Bridges and [High]ways") in Paris. He was awarded the Légion d'honneur in 1804 on its creation by Napoleon Bonaparte. From 1805 until his death, he was the highest-ranked engineer in France.

Émiland Marie Gauthey was born at Chalon-sur-Saône on 3 December 1732 into a provincial petty bourgeois family. His father, Pierre Gauthey, was the local doctor: and his mother, Louise (or Louyse) née was born at Chagny on 27 August 1700 as the dauter of Emiland Lafouge, a company lawyer and Official Receiver for the salt store in Toulon-sur-Arroux.

From 1740 to 1748, he studied with brilliance at the Jesuit college in Chalon. At the age of sixteen, after his father died, he continued his studies at Versailles under the auspices of an uncle who was Professor of Mathematics at the École des pages du roi (English: School for Royal Pages).

He continued his education under the architect Gabriel Dumont before entering the École royale des ponts et chaussées (which became the École nationale des ponts et chaussées, literally "National School of Bridges and [High]Ways"), which had been newly created and was under the direction of the notable engineer Jean-Rodolphe Perronet. He met with the Dumont[clarification needed] architect Jacques-Germain Soufflot, and started a lifelong friendship. He consulted Soufflot on the construction of the dome of Sainte-Geneviève, which became the Panthéon.

Graduating in 1758, he was awarded the post of deputy engineer at Chalon-sur-Saône, under Thomas Dumorey. He would wait twenty-four years, until Dumorey's death in 1782, to become the Chief Engineer of the États de Bourgogne (States of Burgundy) and to makeDijon his home. Shortly after, he was named Director.General of Burgundy Canals (French: Directeur général des canaux de Bourgogne) in 1783.

A brilliant technician, he was an exponent of the spirit of the Age of Enlightenment and of the Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers ("Encyclopaedia or Rational Dictionary of Sciences, Arts and Crafts"), as evidenced by his investigative Essay on Philosophical Language (French: Essai sur la langue philosophique) of 1774 – in which he envisages a kind of language of universal graphical signs like stenography –; and in his use of scientific advances in the building trade. His monumental works on building, Mémoire sur l’application de principes de mécanique de la construction des voûtes et des Dômes ("On the application of mechanical principles in the construction of vaults and domes") and Mémoire sur les canaux de navigation ("On Navigation Canals") posthumously published by his nephew, became standard reference works.

His civil engineering works, such as the bridges of Gueugnon, Navilly and Chalon-sur-Saône, helped to transform transportation methods and accelerated the Industrial Revolution in 19th-century Burgundy. It was in this forward-looking spirit that he participated in improving river navigation and building canals. He collaborated in the project to build a canal in Burgundy between the rivers Yonne and Saône (completed much later, in 1832) and he puis se consacre au canal de Franche-Comté de Saint-Jean-de-Losne/Saint-Symphorien-sur-Saône à Dole (also known as the French: Liaison Saône-Doubs): this part of the project to connect the Rhine with the Rhône, built between 1783 and 1803, is also known as the French: canal de Monsieur because it was opened by Louis V Joseph de Bourbon-Condé, lately Prince and Governor of Burgundy.

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