VIADUCS EIFFEL
Remarkable railway viaducts, listed as Historic Monuments and the first to be built by Eiffel et Cie, at Saint-Bonnet.
In 1863, when the Commentry-Gannat railroad line was created to serve the Lyon-Bordeaux and Clermont-Ferrand-Montluçon routes via Gannat, Nordling, chief engineer of the Compagnie Paris-Orléans, built four astonishing viaducts using the Eiffel technique.
The Bouble (length: 395 m) and Bélon (length: 235 m) viaducts are located in the communes of Échassières and Louroux-de-Bouble, and were built by the Cail & Fives-Lille company. The Rouzat and Neuvial viaducts, listed as Historic Monuments, were the first railway viaducts built by Eiffel et Cie. You can admire them from near or far, on a bike ride or hike through the Sioule valley.
The 180-meter-long Rouzat viaduct spans the Sioule at a height of 59 meters. After several projects, it was decided that the line should pass through Rouzat, and the land was ceded by the Duc de Morny, who also co-owned the Île de Rouzat with the Seigneur de Rochefort. The deck and piers are made of metal and rest on ashlar bases, one of which is set in the river bed, the other on the right bank. Two kilometers further on, you can admire the Neuvial viaduct, 160 meters long and 44 meters high. It crosses a valley on the right bank of the Sioule and takes its name from the village of Neuvial, part of the commune of Bègues.