Pont Saint-Louis-de-Gonzague, Steel bridge in Saint-Louis-de-Gonzague, Canada

The Pont Saint-Louis-de-Gonzague is a road bridge in the municipality of Saint-Louis-de-Gonzague, Montérégie, carrying rue du Pont on two lanes, one per direction. It has 30 spans, and its movable span reaches 110 metres; clearance under the structure is limited to 4.3 metres. It formerly had a single lane plus a railway track, with alternating traffic controlled by lights.

The bridge's history is marked by collisions with ships rather than a documented construction date. In November 1985 the Indian vessel Jalagodavari struck the span south of the lifting section, and in June 2006 a Canadian ship hit a fixed span; Canada's Transportation Safety Board investigated both. The crossing once carried a single road lane plus a rail track, with traffic alternating under signal control.

The bridge takes its name from the parish municipality of Saint-Louis-de-Gonzague where it stands. Its lifting span lets ships pass on the canal, and drivers wait at traffic lights that once alternated single-lane road and rail traffic. A few kilometres away, the near-twin Larocque Bridge serves as backup when this one is raised.

When the lift section is operating for vessel passage, travelers can use the nearby Larocque Bridge as an alternative route. This alternate crossing helps you avoid delays and maintain traffic flow during lift operations.

The bridge has 30 spans, and its movable span measures 110 metres. Its near-twin, the Larocque Bridge a few kilometres away, is not synchronized with it: when one deck is raised, users can cross by the other. In November 1985 the Indian ship Jalagodavari struck the span south of the lifting section; in June 2006 a Canadian ship hit a fixed span, and the Transportation Safety Board investigated both collisions.