Barbegal aqueduct 23.jpg

The Barbegal aqueduct and mills is a Roman watermill complex located on the territory of the commune of Fontvieille, Bouches-du-Rhône, near the town of Arles, in southern France. The complex has been referred to as "the greatest known concentration of mechanical power in the ancient world" and the 16 overshot wheels are considered the biggest ancient mill complex.

Another similar mill complex existed on the Janiculum in Rome, and there are suggestions that further such complexes existed at other major Roman sites, such as Amida (Mesopotamia).

Description

The Barbegal mills are located 12 kilometers east northeast of Arles near Fontvieille, where the Arles aqueduct arrived at a steep hill. The mills consisted of 16 water wheels in two parallel sets of eight descending a steep hillside. There are substantial masonry remains of the water channels and foundations of the individual mills, together with a staircase rising up the hill upon which the mills were built. The mills operated from the beginning of the 2nd century until about the end of the 3rd century. The capacity of the mills has been estimated at 4.5 tons of flour per day, enough to supply bread for as many as 10,000 of perhaps 30–40,000 inhabitants of Arelate at that time. It is thought that the wheels were overshot water wheels with the outflows driving successive wheels to the base of the hill.

The Roman aqueducts that fed the mills were also built to supply water to the town of Arles (then called ''Arelate''). The two aqueducts joined just north of the mill complex and a sluice controlled the water supply to the complex.

Barbegal mill 06.jpg, Mill
Barbegal aqueduct 04.jpg, Aqueduct
Barbegal mill 05.jpg, Remains of the complex
Barbegal mill 02.jpg, The sixteen overshot wheels
Musée de l'Arles antique, Arles, France (16168385326).jpg, Model of the water mills at Barbegal in Musée de l'Arles antique

Other mills

Vertical water mills were well known to the Romans, being described by Vitruvius in his ''De architectura'' of 25 BC, Vitruvius, ''De architectura'', X, 5 and mentioned by Pliny the Elder in his '' Naturalis Historiæ'' of 77 AD. There are also later references to floating water mills from Byzantium and to sawmills on the river Moselle by the poet Ausonius. The use of multiple stacked sequences of reverse overshot water wheels was widespread in Roman mines, especially in Spain and Wales. It is possible that the mills at Barbegal may also have been used for sawing timber and stone when not grinding wheat. The Hierapolis sawmill from the 3rd century AD shows a crank-activated frame saw being used in this way, and another has been excavated at Ephesus.

Visiting the site

Visitors to Barbegal may park where a minor road (Route de L’Aqueduc) crosses the massive remains of the original aqueduct, and, with olive orchards on either side, walk south about 250 meters along the remains of the aqueduct and through the three meter deep rock-hewn cleft emerging at the top of the mill complex. The site is signposted as "Roman aqueduct" rather than as a mill. The Arles Museum of Antiquity has an informative reconstructed model of the mill. The site is currently overgrown, and care is needed exploring the ruins.

Influence

The English science historian James Burke examines Roman watermill technology such as that of the Barbegal aqueduct and mill, concluding that it influenced the Cistercians and their waterpower, which in turn influenced the Industrial Revolution, in the fourth of his ten-part ''Connections'', called "Faith in Numbers".

See also

* List of Roman watermills
* Roman technology
* Roman engineering

References

Further reading

* Amouretti, M.-C.: 'Barbegal: de l'histoire des fouilles a l'histoire des moulins', ''Provence Historique'', 167-8 (1992), pp. 135–49
* Bellamy, R. B. & Hitchner, P.- S.: 'The villas of the Vallee des Baux and the Barbegal Mill: excavations at la Merindole villa and cemetery', ''Journal of Roman Archaeology'' 9 (1996), pp. 154–76
* Benoit, F.: 'L'usine de meunerie hydraulique de Barbegal (Arles)', ''Revue Archéologique'', sixième série 15.1 (1940), pp. 19–80
* Bromwich, J, 'The Roman Remains of Southern France', Routledge, 1996, pp. 156–60
* Cleere, Henry, 'Southern France', "Oxford Archaeological Guides", 2001, pp 119–120
* Coulard, G, and Golvin, J-C, 'Voyage en Gaule Romaine, Actes Sud-France, 2002', pp 124–127
* Hodge, A.T.: 'A Roman factory', ''Scientific American'' (November 1990), pp. 58–64
* Leveau, P.: 'The Barbegal water-mill in its environment: archaeology and the economic and social history of antiquity', ''Journal of Roman Archaeology'' 9 (1996), pp. 137–53
* Lorenz, Wayne F., and Phillip J. Wolfram: The millstones of Barbegal (Possible usage of flour mill in Barbegal, France for testing designs of millstones). ''Civil Engineering'', 77.6, June 2007, pp. 62–67
* Lorenz, and Wolfram: 'Arches have no rivals (Unique Roman bridges offer clues as to how it was done centuries ago)', ''Roads and Bridges'', September 2007, pp 28–50
* Sagui, C.L.: 'La meunerie de Barbegal (France) et les roues hydrauliques chez les anciens et au moyen age', ''Isis'', Vol. 38, No. 314. (Feb., 1948), pp. 225–231
* Sellin, R.H.J.: The large Roman water mill at Barbegal (France), ''History of Technology'', 8, 1983, pp. 91–109

External links

The Millstones of Barbegal, Civil Engineering, ASCE

Valley Crossings and Flood Management for Ancient Roman Aqueduct Bridges, Journal of Irrigation and Drainage (ASCE)

Barbegal Arches in 'Arches have no rivals'

The Roman Flour Mill at Barbegal

The Report of Field Investigations of the Barbegal Mill and Aqueduct System
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Photographs of site

{{Roman aqueducts

Roman aqueducts in France
Ancient Roman watermills
Roman sites in Provence
Buildings and structures in Bouches-du-Rhône
Tourist attractions in Bouches-du-Rhône
Ruins in Provence-Alpes-Côte d'Azur
Watermills in France
Flour mills