Pont de l'île Saint-Denis, Tram bridge in L'Île-Saint-Denis, France

Pont de l'île Saint-Denis is a double road bridge across the Seine: a 118 m span from Saint-Denis to L'Île-Saint-Denis and a 98 m span from the island to Villeneuve-la-Garenne. Each has three segmental arches of seven parallel ribs, the outer ribs in cast iron, on stone piers. The deck, rebuilt in prestressed concrete, carries the T1 tram.

The first bridge here was a double suspension bridge built by the Seguin brothers in 1843–1844, with a 60-year toll concession lifted in 1886. Its cables and war damage prompted calls for replacement from 1874, and the decision to rebuild was taken in 1901. The cast-iron bridges by engineer Louis-Pierre Caldagues were built from 1903 to 1905, decorated by Jules Formigé with sculptures by Florian Kulikowski.

The bridge's decoration was entrusted to Jules Formigé, with the sculpted figures made under Florian Kulikowski. The carved shield on the central stone pier, visible from the bank, is part of this programme. The cast-iron arches and the aluminium-cast railings, styled after the originals, show the mix of 1900s engineering and ornament.

The bridge carries the T1 tram line, running since November 2012, and continues the former route nationale 186. It links the quai d'Asnières and quai Alfred-Sisley on the Saint-Denis side with the quai de Seine and boulevard de la Libération at Villeneuve-la-Garenne. After the boat collision of 15 May 2025 it was closed to road traffic and trams for an estimated year.

The structure sits on an island in the middle of the river and withstood several accidents, including a collision with a German barge in 1941. It also survived the severe Seine floods in 1983.