Eolienne
MonumentHidden Treasure
A 20-metre steel sentinel erected in 1902, the wind turbine at Courville-sur-Eure is a rare industrial landmark from the Belle Époque, a masterpiece of hydraulic engineering designed by Auguste Bollée's successor.
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History
Standing like an industrial sculpture in the heart of the Chartres region, the wind turbine at Courville-sur-Eure is one of the few hydraulic machines of its type still standing in France. Its slender silhouette of a metal pylon, rising to a height of twenty metres, tells the story of the technical ingenuity of the Belle Époque, an era when wind energy was harnessed to meet the vital needs of rural and institutional communities. What makes this monument truly singular is its remarkably well-preserved functional unity: the pump and its wooden shelter are integrated directly into the metal structure, forming an autonomous and coherent system installed above the well that it overlooked. Here we are faced with a machine conceived as a whole, not as a disparate assembly - an engineering philosophy that can be found in the great tradition of the mechanics of the late nineteenth century. To visit the Courville wind turbine is to plunge back into an era when drinking water was a major health issue for care establishments. Designed to supply the nearby Courville Asylum, this machine was not an ornament but a vital piece of infrastructure. It bears witness to the gradual modernisation of public facilities in rural France in the early 20th century. The site offers a visit that is both contemplative and educational. The openwork metal structure, typical of industrial buildings of the period, has an almost sculptural aesthetic that lovers of industrial heritage and photographers will appreciate. Even without its pointed propeller, the wind turbine retains an imposing presence in the landscape of the Beauce region of Eure. Registering this monument as a Historic Monument in 1993 was a major step towards recognising that industrial and technical heritage deserves the same protection as cathedrals and castles. The Courville wind turbine embodies the memory of ordinary civil engineering, the kind that fed, cared for and watered people.
Architecture
The Courville-sur-Eure wind turbine belongs to the category of pylon-type hydraulic machines, a design characteristic of French industrial wind turbines of the late 19th and early 20th centuries. Unlike traditional masonry windmills, this type of structure is based on a self-supporting openwork metal structure, whose apparent lightness contrasts with its real strength. The tower rises to a height of twenty metres, calculated to capture air flows above surrounding obstacles while ensuring the mechanical stability of the whole structure. One of the most notable architectural and technical features of this wind turbine is the integration of the pump and its wooden shelter directly into the structure of the tower. This shelter, positioned at the base or mid-height of the tower, protects the mechanical components from the elements while allowing access to the maintenance mechanisms. This unitary design, in which the machine forms a closed system from the shaft to the paddlewheel, testifies to the high level of industrial rationalisation achieved by Bollée's engineers. While the oriented propeller - an essential component enabling the wheel to steer automatically into the wind thanks to a rudder vane - has now disappeared, the load-bearing structure retains most of its original morphology. The metal members, bolted connections and bracing diagonals illustrate the construction vocabulary of Belle Époque metal engineering, a direct descendant of the techniques disseminated by Gustave Eiffel and his contemporaries.
Related Figures
Auguste Bollée — ingénieur-mécanicien manceau, fondateur de la династie industrielle et pionnier des éoliennes hydrauliques françaisesE. Lebert — ingénieur-constructeur-hydraulicien, acquéreur des brevets Bollée en 1898 et concepteur de l'éolienne de Courville en 1902Auguste Bollée fils — continuateur de l'œuvre paternelle et représentant de la seconde génération de l'entreprise familialeAmédée Bollée — frère d'Auguste fils, autre héritier de la tradition technique Bollée, pionnier de l'automobile
