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Orb Aqueduct

Aqueducts on Canal du Midi
Pont canal de l'Orb cf07
Pont canal de l'Orb cf07

The Orb Aqueduct (French: Pont-canal de l'Orb, Pont-canal de Béziers) is a bridge which carries the Canal du Midi over the Orb in the city of Béziers in Languedoc, France. The aqueduct is 28 metres (92 ft) wide, 12 metres (39 ft) tall and at 240 metres (790 ft) is the longest on the Canal du Midi. Prior to the opening of the aqueduct in 1858, the Canal du Midi traversed a short section of the Orb itself. The opening of the aqueduct allowed boats to avoid the river, which was unpredictable and sometimes dangerous, and often caused extended delays. For example, in 1779 exceptional floods caused the river section to be impassable for seventeen days. Various schemes were proposed to bypass the Orb; an aqueduct of over 1 km in length was proposed in 1739 and in 1756 a plan to carry the canal in a tunnel under the Orb was put forward. However, neither proposal was implemented. In April 1854, the Chief Engineer of the Canal Company, M. Magues, prepared designs for the present aqueduct together with new channels to take the canal from the side of the seventh and second lowest chamber of the Fonserannes Lock, across the Orb and to rejoin the original course of the Canal du Midi. The plans involved the construction of two new locks, the Orb Lock and the Béziers Lock, as well as a canal basin to the east of the Orb. Permission for the new works was granted by a decree of Emperor Napoleon III in June 1854 and the construction was completed by May 1856 and opened for use in 1858. The aqueduct is built of stone with seven spans and carries the canal in a masonry trough sealed with a layer of concrete. There are towpaths on each side of the waterway and underneath are two arcaded walkways. The walkways are now not accessible except for maintenance. The concrete seal was replaced in 1951 but otherwise the original structure is intact.

Excerpt from the Wikipedia article Orb Aqueduct (License: CC BY-SA 3.0, Authors, Images).

Orb Aqueduct
Quai du Comandant Jaques-Yves Cousteau, Béziers

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Wikipedia: Orb AqueductContinue reading on Wikipedia

Geographical coordinates (GPS)

Latitude Longitude
N 43.334444444444 ° E 3.2127777777778 °
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Address

Pont Georges-Fontès

Quai du Comandant Jaques-Yves Cousteau
34500 Béziers
Occitania, France
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Pont canal de l'Orb cf07
Pont canal de l'Orb cf07
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Fonseranes Locks
Fonseranes Locks

Fonseranes Locks (French: écluses de Fonseranes, les neuf écluses) are a flight of staircase locks on the Canal du Midi near Béziers. They consist of eight oval-shaped lock chambers, characteristic of the Canal du Midi, and nine gates, which allow boats to be raised a height of 21.5 metres (71 ft) over a distance of 300 metres (980 ft). The flight was originally built as an eight-rise, which together with the ninth lock (the écluse de Notre-Dame, 710 metres (0.44 mi) to the northeast) allowed boats to cross the Orb river on a level and re-enter the canal further downstream. The "nine locks" name dates from this time. However, in 1858 an aqueduct was built to replace the crossing of the Orb. Boats now enter and leave the lower end of the flight through the side of chamber seven, which is permanently kept at its upper water level. The flight is therefore effectively made up of six locks. The lower gates of the seventh chamber are now permanently closed; the eighth chamber and the ninth lock, the pre-1858 route descending to the Orb, are disused. This side exit from chamber seven causes some confusion in describing the flight of locks. While most sources now ignore the disused eighth chamber, some still describe the flight as a seven-rise, despite chamber seven being permanently at the lower canal level. In 1983 the Fonseranes inclined plane was built adjacent to the locks, to allow commercial traffic and boats too large for the locks to bypass them. Unfortunately the project encountered technical problems, and after many years of attempting to solve them the inclined plane was abandoned in 2001. Traditional buildings such as the stables and the lock keeper's house still remain. These and the locks themselves have made the site the third most popular tourist destination in Languedoc-Roussillon, after the Pont du Gard and the town of Carcassonne. Though Pierre-Paul Riquet rightly receives much credit and acknowledgement for the creation of the Canal du Midi, we may forget that many individual parts of the canal were built by subcontractors other than Riquet. The subcontractors for these locks were two illiterate brothers, Michel and Pierre Medailhes. Many of the workers were women.