Grand Arvou Bridge

Porossan, Italy

The Bridge of Gran Arvou spans the Rû Prévôt irrigation canal, and includes a large corridor covered by flagstones.

The Grand Arvou is an arch bridge, with a span of 68.5 m and an elevation of 13,60 m between the arch's top and the ground; the distance between the roof and the base of the arch is 10,5 m. The bridge is built in mortar and small incoherent stones, with partial plastering. The plan is irregular, with a general trapezoidal shape, but without the main parallel side; the walls's thickness varies from 50 to 55 cm. The roof is covered by flagstones, which helped it resist to the centuries.

In the late 13th-early 14th century, there was a series of programs aiming to improve the irrigation level in Aosta Valley, due to increased demand of animal husbandry. One of this was the construction of canal, the Rû Prévôt, by will of Henry of Quart, provost (hence the name) of the Aosta Cathedral. This included also the couple of bridge-aqueducts which are now visible.

The income of the canal exploitation was later acquired by the Dukes (later Kings) of Savoy. In the 20th century, the canal was mostly channeled into pipes.



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    Founded: c. 1288

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    4.7/5 (based on Google user reviews)

    User Reviews

    luca berga (3 months ago)
    Acquedotto Romano bellissimo sembra costruito da poco.
    Sabino “Sabinonk” Marangon (4 months ago)
    The water is yummy and fresh
    Luigi Pierantoni (8 months ago)
    Really very nice
    Caterina Speretta (19 months ago)
    Very nice pity that you can not visit inside
    paolo chapellu (2 years ago)
    Around 1300, Henry de Quart, provost of the cathedral of Aosta, had the ru Prévot built. The work was intended to irrigate the lands of the family lordship located on the hills of Quart and Saint-Christophe. The importance of the conduit was such that the nobleman, writing his will in 1317, included it among the goods transmitted to the heirs. The bridge is easily accessible and just a few minutes from Aosta.
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