Pont de Pirmil, Steel tram bridge in Nantes, France.

The Pont de Pirmil crosses the Loire's Pirmil arm, linking Place Victor-Mangin on the Île de Nantes to Place Pirmil in Nantes Sud. Its shallow-arched pale green steel trusses, with crisscrossing diagonals and verticals, rise above a flat deck and rest on piers, one of them at the waterline.

Originally a wooden footbridge from the 9th century, the current steel structure was completed in 1947 after German forces destroyed its predecessor in 1944. The rebuilding was part of Nantes' reconstruction after World War II.

The name Pirmil likely derives from the Latin Pila milliaria, a Roman milestone. For centuries the bridge was the southernmost link of Nantes' first line of bridges, and the starting point of roads heading south to Clisson, Poitiers, La Rochelle and Pornic. The nearby hospice Saint-Jacques marked the beginning of the pilgrimage route to Santiago de Compostela.

The bridge underwent modifications in 1994 to accommodate tram lines and is now part of the public transport network. Visitors can cross it on foot or by tram and enjoy views of the river and banks from here.

During the early 20th century, residential houses stood directly on the previous bridge structure, creating a lived-in corridor over the water. This unusual arrangement turned the bridge into a living street rather than just a passage.