Bridge of Grand-Arvou, Medieval stone arch bridge in Porossan, Italy.
The Bridge of Grand-Arvou spans 68.5 meters across the Rû Prévôt irrigation canal, featuring a large corridor covered with protective flagstones on its roof.
Henry of Quart, provost of Aosta Cathedral, commissioned this bridge during the late 13th century to improve water distribution for agricultural needs in Aosta Valley.
The bridge revenue system established by local authorities later transferred to the Dukes and Kings of Savoy, shaping regional economic patterns.
Visitors can reach the bridge via a short walking path after parking near Corsica, following the dirt trail that leads directly to the structure.
The bridge construction uses mortar and small stones in an irregular trapezoidal shape, with wall thickness varying between 50 and 55 centimeters.
Location: Aosta
Inception: 1300
Length: 68.5 m
GPS coordinates: 45.75833,7.32806
Latest update: March 9, 2025 03:01
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