Briare aqueduct
Encyclopedia
The Briare Aqueduct carries the Canal latéral à la Loire
Canal latéral à la Loire
The Canal Latéral à la Loire was constructed between 1827 and 1838 to connect the Canal de Briare at Briare and the Canal du Centre at Digoin, a distance of 196 km. It replaced the use of the River Loire which had reliability problems arising from winter floods and summer droughts...

 over the River Loire on its journey to the River 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...

 in France. It replaced a river-level crossing from the canal to meet the Briare Canal
Briare Canal
The Canal de Briare is one of the oldest canals in France. It is the first summit level canal in Europe that was built using pound locks, connecting the Loire and Seine valleys. It is 57km long and is part of the Bourbonnais route from Saint-Mammès on the Seine to Chalon-sur-Saône on the Saône River...

 that was hazardous in times of flood. Between 1896 and 2003 it was the longest navigable aqueduct
Navigable aqueduct
Navigable aqueducts are bridge structures that carry navigable waterway canals over other rivers, valleys, railways or roads. They are primarily distinguished by their size, carrying a larger cross-section of water than most water-supply aqueducts...

 in the World until the opening of the Magdeburg Water Bridge
Magdeburg Water Bridge
The Magdeburg Water Bridge is a navigable aqueduct in Germany, opened in October 2003. It connects the Elbe-Havel Canal to the Mittellandkanal, crossing over the Elbe River...

.

It is part of the Canal latéral à la Loire
Canal latéral à la Loire
The Canal Latéral à la Loire was constructed between 1827 and 1838 to connect the Canal de Briare at Briare and the Canal du Centre at Digoin, a distance of 196 km. It replaced the use of the River Loire which had reliability problems arising from winter floods and summer droughts...

 not, as is commonly believed, the Briare Canal
Briare Canal
The Canal de Briare is one of the oldest canals in France. It is the first summit level canal in Europe that was built using pound locks, connecting the Loire and Seine valleys. It is 57km long and is part of the Bourbonnais route from Saint-Mammès on the Seine to Chalon-sur-Saône on the Saône River...

.

History

The Briare aqueduct
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....

 near Châtillon-sur-Loire
Châtillon-sur-Loire
Châtillon-sur-Loire is a commune in the Loiret department in north-central France.-See also:*Communes of the Loiret department...

 was, for a long time, the longest steel canal aqueduct in the world. The aqueduct is 662 metres long and lost its title of longest aqueduct to the Magdeburg Water Bridge
Magdeburg Water Bridge
The Magdeburg Water Bridge is a navigable aqueduct in Germany, opened in October 2003. It connects the Elbe-Havel Canal to the Mittellandkanal, crossing over the Elbe River...

 which crosses the Elbe
Elbe
The Elbe is one of the major rivers of Central Europe. It rises in the Krkonoše Mountains of the northwestern Czech Republic before traversing much of Bohemia , then Germany and flowing into the North Sea at Cuxhaven, 110 km northwest of Hamburg...

 and is 918 metres long. The aqueduct was designed by the engineers Léonce-Abel Mazoyer and Charles Sigault. The masonry abutments and piers were completed between 1890 and 1896 by Gustave Eiffel
Eiffel (company)
Eiffel is part of the Eiffage group and the descendant of the engineering company Société des Établissements Eiffel founded by Gustave Eiffel, designer of the Eiffel Tower....

 and the steel channel was completed by Daydé & Pillé of Creil
Creil
Creil is a large town in northern France. It is designated municipally as a commune within the département of Oise.-History:Archaeological remains in the area include a Neolithic site, as well as a late Iron Age necropolis, perhaps belonging to a Gaulish fortress or protected camp.The city itself...

. The aqueduct was inaugurated on 16 September 1896 with the crossing of the boat Aristide, belonging to Ernest Guingamp. It allowed the development of transport to the Freycinet gauge
Freycinet gauge
The Freycinet gauge is a standard governing the dimensions of the locks of some canals, put in place as a result of a law passed during the tenure of Charles de Freycinet as prime minister of France, dating from 5 August 1879....

 between the Loire and Seine, and is a registered historic monument in France.

The aqueduct is built on fourteen piers. These piers support a single steel beam in turn supporting a steel channel which contains more than 13,000 tonnes of water, 2.2 meters deep and 6 metres wide allowing boats with a 1.8m draught to cross. The width of the aqueduct, towpaths included, is 11.5 meters and its length is 662.7 meters. There is a line of standard lamps on each side of aqueduct. Each end is marked by two ornamental columns in imitation of the Pont Alexandre III
Pont Alexandre III
The Pont Alexandre III is an arch bridge that spans the Seine, connecting the Champs-Élysées quarter and the Invalides and Eiffel Tower quarter, widely regarded as the most ornate, extravagant bridge in Paris...

 in 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...

. Eight sluices make it possible to empty the aqueduct in the event of severe freezing.

External links

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