Viaduc de la Recoumène, Railway bridge in Le Monastier-sur-Gazeille, France.

The Viaduc de la Recoumène is a railway viaduct built entirely of basalt, the local stone, near Le Monastier-sur-Gazeille. It is 270 metres long with eight semicircular arches of 25 metres' span, standing 65.60 metres above the Gazeille. The deck runs in a curve of 325 metres radius on a 21‰ gradient, with no buttresses, abutment piles or iron ties; cement mortar allowed very slender piers.

Engineer Paul Séjourné designed the structure between 1921 and 1925 as part of the Transcévenole railway line intended to connect Le Puy and Aubenas. The railway never operated on this route, leaving the viaduct without its original purpose.

The name comes from the Gazeille, called La Ricomène in the Napoleonic cadastre, slightly altered for the viaduct. The structure is now part of a walking, horse-riding and mountain-bike route, and a 65-metre bungee jump is operated from it.

The viaduct is reached easily from the nearby road and is part of a waymarked walking, horse-riding and mountain-bike route. A 65-metre bungee jump is operated from the structure. The deck is not a through route for traffic, so visitors come to look at the bridge and the Gazeille valley rather than to cross it.

The viaduct is built on a horizontal curve with a radius of 325 metres and climbs at a gradient of 21 per mille, yet it has no buttresses, no abutment piles and no iron tie-rods. Cement mortar allowed the piers to be kept very thin. Engineer Auguste Jouret called it the last feat of its era, useful only to be looked at.