Aqueduc du Pont de Crau (restes)
MonumentHidden Treasure
Aqueduc du Pont de Crau (restes), located in Arles (Bouches-du-Rhône), is a historic monument. The monument is currently closed to visitors.
Key facts
- Type
- autre
- Location
- Arles, Bouches-du-Rhône, Provence-Alpes-Côte d'Azur
- Visit
- Closed to visitors
- GPS
- 43.6637, 4.6486
- Mérimée Reference
- PA00081121
A monumental vestige of Roman engineering in the Camargue, the Pont de Crau aqueduct bears witness to the hydraulic ambitions of ancient Arles, supplying a leading Gallo-Roman city in the heart of Provence.
History
In the heart of the Crau plain, between marshes and garrigue, stand the discreet but striking remains of the Roman aqueduct that once supplied Arelate - ancient Arles - with fresh water from the Alpilles hills. These remains of Roman masonry, listed as a Historic Monument since 1922, are one of the most tangible testimonies to Rome's organisational power in Narbonne Gaul. What makes this monument unique is precisely the nature of the challenge faced by its builders. The Crau plain, a vast, flat, stony expanse, offered no natural relief conducive to gravity-fed water supply. The Roman engineers had to design a structure capable of maintaining an even, minute gradient - just a few centimetres per kilometre - for miles on end, crossing wetlands and natural canals. The Pont de Crau, which gives its name to the complex, was one of the structures used to cross this complex hydraulic network. For the discerning visitor, contemplating these ruins is a powerful exercise in imagination. The structure's piers, eroded by twenty centuries of weathering and flooding in the Camargue region, retain the inimitable signature of Roman concrete - opus caementicium - mixed with pebbles from the Durance and tufa limestone from local quarries. Mediterranean vegetation has taken over the interstices, wrapping the ancient stone in a mantle of thyme and wild clematis. The site is set in an exceptional natural environment, at the gateway to the Rhône delta. Photography enthusiasts will find striking compositions, particularly at the golden hour, when the low-angled Provençal light brings out the textures of the ancient masonry. Roman archaeology enthusiasts can extend their visit to the museums of Arles - the Musée Départemental de l'Arles Antique in particular - which preserve numerous artefacts linked to the region's Roman hydraulic engineering. Far from the crowds that flock to the ancient theatre or the Arles Arena, the Pont de Crau aqueduct offers a more intimate, almost solitary, communion with antiquity. It's a monument for those who know how to read the language of time in stone.
Architecture
The Pont de Crau aqueduct belongs to the great tradition of Roman hydraulic engineering, of which the neighbouring Pont du Gard is the most spectacular example. Although the remains in Arles are much less imposing than their illustrious neighbour, they share the same fundamental construction principles. The piers and abutments that have survived bear witness to the characteristic mixed masonry: a core of opus caementicium - Roman concrete made from lime, sand and pebbles from the Durance river - clad with a facing of regular small-scale limestone, the blocks carefully cut from quarries in the Alpilles or near Arles. The specus, the central conduit through which the water flowed, probably had a barrel-vaulted section around 60 to 80 centimetres wide by a comparable height, standard dimensions for aqueducts of this region and period. The interior was lined with opus signinum - a pinkish hydraulic mortar enriched with crushed tile fragments (tuileau) - of remarkable impermeability, capable of withstanding decades of water circulation under light pressure. The calculated gradient of the entire route was not to exceed a few millimetres per metre, requiring extraordinary topographical control and levelling accuracy for the time. The crossing arches of the Pont de Crau itself were part of an architectural logic that was both functional and aesthetic, as Roman engineers never dissociated technical efficiency from harmonious proportions. The abutments and piers that can still be seen today suggest an arch span of around five to ten metres, adapted to the local topography of the plain. The local materials - shell limestone, tufa, Alpilles sandstone - give the remains the ochre and beige hue characteristic of ancient Provencal architecture.
Related Figures
Jules César — fondateur de la colonie romaine d'Arelate en 46 av. J.-C., dont l'essor démographique rendit nécessaire la construction de l'aqueducAuguste — sous le règne duquel fut probablement entrepris ou achevé le grand réseau hydraulique d'Arles, dans le cadre de la monumentalisation des cités de NarbonnaiseAgrippa — gendre d'Auguste et grand organisateur des travaux hydrauliques dans les provinces romaines de Gaule, superviseur indirect des grands chantiers d'ingénierie de la régionFrédéric Mistral — chantre de la Provence antique et médiévale, dont les œuvres contribuèrent à sensibiliser l'opinion à la sauvegarde du patrimoine archéologique arlésien au XIXe siècleAuguste Véran — antiquaire et archéologue arlésien du XIXe siècle ayant contribué aux premières descriptions savantes des vestiges hydrauliques romains autour d'Arles
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Frequently Asked Questions
Where is Aqueduc du Pont de Crau (restes) located?
Aqueduc du Pont de Crau (restes) is located in Arles, Bouches-du-Rhône department, Provence-Alpes-Côte d'Azur region, France.
Is Aqueduc du Pont de Crau (restes) open to visitors?
Aqueduc du Pont de Crau (restes) is currently closed to visitors.