Pont basculant de la Seyne-sur-Mer, Railway lift bridge in La Seyne-sur-Mer, France

The Pont basculant de la Seyne-sur-Mer is a steel railway bascule bridge in the port of La Seyne-sur-Mer, part of the former shipyards. Its narrow lattice tower of grey metal beams rises above a heavier base of thick trusses and pivoting machinery, with diagonal cross-members along its height. Since 1986 it has remained locked in the vertical position.

Designed by the Daydé company, the bridge opened in 1920 to connect trains from the station to the shipyards by the sea. It was crucial for moving materials and workers to one of the region's most important industries.

The bridge is known locally as the pont des chantiers, after the shipyards it served. On the first floor, in a glazed room, a permanent exhibition displays the mechanisms and motors once used to tilt the span into a horizontal position.

The bridge has stood locked in the raised position since 1986, so it is seen vertically rather than in operation. Since the 2009 restoration, a lift carries visitors to the belvedere at the top; the glassed room on the first floor holds the permanent display of the old turning mechanisms and motors. The structure is inscribed as a monument historique.

At night, the bridge is lit with LED lights visible from across the harbor, adding a modern glow to this older industrial structure. This lighting transforms the aging infrastructure into a different kind of landmark after dark.