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Saint-Ours Canal National Historic Site

Culture and Heritage

The island and its history will fascinate you! The island and its history will fascinate you!
© Parks Canada

The island and its history will fascinate you! The Saint-Ours Canal is the ideal place for a relaxing stroll, picnic, and outdoor activities.

Come and discover the remains of the first lock, visit the Superintendent’s house, the dam, as well as the Vianney-Legendre Fishway. You’ll be amazed by their rich history and extraordinary ingenuity!


The Superintendent’s House

Enter to visit the Superintendent’s house Enter to visit the Superintendent’s house
© Parks Canada
During the navigation season,
open daily from 10 a.m. to 5 p.m.

Meet the Friends of the Saint-Ours Canal located in the Superintendent’s house. They offer fun activities and will be happy to show you an exhibit on the history of the Saint-Ours Canal’s construction.

In addition, you will find various works of art signed by local artists, handmade soaps and products from Ferme Saint-Ours.

Guided tours

During the navigation season, guided tours are offered for free.

Upon reservations, groups benefit from a special package that includes a souvenir album.

Book now: 450-517-2059


The Dam

The dam works with water pressure The dam works with water pressure
© Parks Canada

Around 1965, the old wooden dam, built in 1849, was too damaged to effectively regulate the Richelieu’s water level.

Therefore, from 1967 to 1969 a new dam was constructed using a technology that was at the time unique in North America: water pressure, not electricity, controlled the floodgates.

During the navigation season, the dam is open from Thursday to Sunday except during when work is being done on it.


The Vianney-Legendre Fishway

A world-unique fish ladder! A world-unique fish ladder!
© Parks Canada
A world-unique fish ladder!

One way to help fish move beyond obstacles like dams is to install fishways. These structures, sometimes called fish passages or fish ladders, enable fish to swim over the barriers.

Built in 2001, the main multispecies fishway responds to the needs and characteristics of the Lake Sturgeon, American Shad, River Redhorse, and Copper Redhorse. A special fishway was added to accommodate the needs of the American Eel.

Come see these unique species swim up the Richelieu River!

More information


Surprising discoveries await you in the Valley of Forts! Surprising discoveries await you in the Valley of Forts!
© Parks Canada

Valley of Forts

The Saint-Ours Canal National Historic Site is located in the Valley of Forts, in the Montérégie region of Quebec. The area is renowned for its rich history and culture!