Honoré Mercier Bridge

Honoré Mercier Bridge is a steel and concrete structure crossing the Saint Lawrence River between LaSalle and Kahnawake, composed of truss and arch sections that support four traffic lanes. The bridge spans roughly 2 kilometers with a width of about 65 feet (20 meters), designed to carry everyday vehicle flow across the waterway.

This bridge was constructed in 1934 during Montreal's infrastructure expansion and was named after a former Quebec Premier. Its opening represented a significant step in connecting the two banks of the Saint Lawrence River through modern engineering.

This structure links Montreal with the Mohawk territory of Kahnawake, creating a daily passage where people from both communities cross back and forth. The bridge represents a physical meeting point between two distinct cultural worlds on either side of the river.

The bridge is open for regular vehicle traffic and offers accessible passage for pedestrians and cyclists in designated areas. Expect heavier congestion during peak commute times, when travel across the structure can become slow.

A major renovation in 2009 employed prefabricated concrete panels to strengthen and extend the bridge's operational life. This modernization approach allowed the structure to continue serving its purpose without complete reconstruction.

Location: Kahnawake

Location: LaSalle

Inception: 1934

Official opening: July 11, 1934

Length: 1,933.19 m

Longest Span: 121.87 m

Width: 19.8 m

Made from material: steel, reinforced concrete

GPS coordinates: 45.41700,-73.65500

Latest update: December 8, 2025 20:01