Viaduc de Mirandol, Railway bridge in Mont Lozère et Goulet, France.

The Mirandol Viaduct is a masonry railway bridge on the Translozérien line, crossing the Chassezac and the RD 6 road west of Mont Lozère et Goulet in Lozère. What is called the Mirandol Viaduct is in fact two viaducts separated by a rocky spur: the large one, 168 m long and 30 m high, and the small one, 62 m long. The large viaduct has a curvature radius of 150 m and a width of 4.50 m between parapets.

This bridge was completed in 1902 as part of a railway line connecting Monastier to La Bastide-Saint-Laurent-les-Bains. The line was built to bring rail transport into this remote mountainous area.

The viaduct carries the line from Le Monastier to La Bastide-Saint-Laurent-les-Bains, whose Mende–La Bastide section opened on 15 November 1902. The Stevenson Trail (GR70) between Le Puy-en-Velay and Alès passes near it, so walkers on that route see the masonry arches from the path.

The viaduct is approached by the Stevenson Trail (GR70) between Le Puy-en-Velay and Alès. The structure is in fact two viaducts separated by a rocky spur: the large one spans the Chassezac for 168 m, the small one measures 62 m. Snow-protection galleries stand at each end.

What is called the Mirandol Viaduct is in fact two structures in immediate succession, separated only by a rocky spur: the large viaduct over the Chassezac, 168 m long, and a small one of 62 m. The line reaches its highest point, 1,215 m, at the Larzalier stop.