Bridge of Grand Arvou

The Bridge of Gran Arvou is an aqueduct-bridge in the frazione Porossan of Aosta, north-western Italy. It span the Rû Prévôt irrigation canal, and includes a large corridor covered by flagstones. Another aqueduct-bridge, the Petit Arvou, is located a few meters downstream.

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 these was the construction of a canal, the Rû Prévôt, by will of Henry of Quart, provost of the Aosta Cathedral. This included also the pair of bridge-aqueducts which are now visible.

Wikipedia