Montérégie, QC
I’m one of the world’s largest hydropower generating stations and the fifth largest in Québec. I have 36 generating units spread out over almost a kilometre. I know—that’s huge! I’m quite proud of myself! I was built in the 1930s and, not that I want to brag, but my Art Deco-inspired architecture’s got style. In fact, I’ve even won awards for my appearance and was designated as a National Historic Site of Canada. Pretty classy, right?
Come see me! I’m only 40 kilometres from downtown Montréal. I’ll even let you go down one of my turbine shafts, just to impress you. And don’t forget my interpretation center! You’ll be captivated! A guide will take you on your tour and explain who I am in detail. You’ll see, my guides are pros and very friendly!
I bet you’ll know all about how electricity is generated after you leave.
I’m waiting for you! The tour is free.
Have a look at these pictures to get a sneak peek of your guided tour.
No activities are held at our electricity interpretation centre at this time. But stay tuned!
Check our event scheduleAre your children aged between 6 and 12? Are they the curious type? Our Neurones atomiques team holds several science workshops during the year. They explore various topics and are always lots of fun. Your little science buffs will long remember the time they spent with us. What’s more, these activities are free!
Are your children aged between 6 and 12? Are they the curious type? Our Neurones atomiques team holds several science workshops during the year. They explore various topics and are always lots of fun. Your little science buffs will long remember the time they spent with us. What’s more, these activities are free!
Like New York City’s Empire State Building, my architecture is inspired by Art Deco, a style known for its elegant aesthetics popular during the 1920s. Even though my construction lasted more than 30 years, those who built me respected my architecture’s pure lines and classic compositions, preserving my robust and proud look. You’re sure to be amazed!
My 36 generating units each have a 300‑tonne rotor, as heavy as 50 African elephants! With my installed capacity of more than 1,900 megawatts, I can power nearly 400,000 homes. That’s the size of a city like Laval!
Every second, 8 million litres of water flow through me, enough to fill three Olympic-sized pools!
There is a huge flag near to where I am. It measures 200 metres by 100 metres! It was installed in 1953. Since then, it has been a key visual cue for pilots of eastbound planes landing on runways 6 left and 6 right at Trudeau airport. It can’t be missed!
I’m the longest and most powerful run‑of‑river generating station in Québec. I’m 926 metres long, the length of ten football fields laid end to end!
I was built in three phases: 1929 to 1932, 1948 to 1951, and 1956 to 1961. That’s almost 35 years! Find out (almost) everything about me with these historical milestones.
1881–1889: Construction of the Panama Canal
1914–1918: World War I
At the end of the 19th century, companies were looking for places to build generating stations in Québec. The Beauharnois Light, Heat and Power found a location near Saint‑Louis and Saint‑François lakes, which had the immense advantage of being close to Montréal and the Fleuve Saint‑Laurent (St. Lawrence River).
In 1929, during the stock market crash, engineer Robert O. Sweezey undertook a colossal project able to handle the immense flow of the mighty river. Then began the dredging of a huge canal to bring the water to the place where I would be built. To build the 25‑kilometre‑long, 1‑kilometre‑wide canal, 200 million cubic metres of material had to be excavated, nearly 20% more than for the Panama Canal.
In 1932, my first phase was commissioned, and 14 of my generating units began to supply the Montréal area. In 1933, after a financial scandal, I became the property of the Montreal Light, Heat and Power Company.
1939–1945: World War II
Adélard Godbout’s Liberal government decided to nationalize electric companies in Québec, and Hydro-Québec was born. I was one of the four hydropower generating stations acquired by the brand-new government-owned corporation.
Hydro‑Québec began the second phase of my construction and installed a spillway. The project was completed in 1951 with the addition of 12 generating units.
In 1956, with the increase in Québec’s population and the demand for electricity, the third phase of construction began. Five years later, in 1961, the 10 remaining generating units were commissioned. I then became the most powerful generating station in Canada. This major project saw its last workers leave in 1964.
1960: Beginning of the Quiet Revolution
1962: Maîtres chez nous! – Election of Jean Lesage’s Liberal Party
1963: Second phase of electricity nationalization
1967: Montréal’s Expo 67 is held
Because of my exceptional heritage value and the key role I played in the 20th century’s industrial and metropolitan history, and in changing the way of life of Canadians, I was designated as a national historic site by the Historic Sites and Monuments Board of Canada in 1990. Quite the honor!
An ambitious program to refurbish me started in 1994 and ran until 2021. It was quite a challenge to modernize and “rebuild” me while keeping me in operation!
In 2021, a new project to modernize the Beauharnois–Les Cèdres hydropower complex’s structures was initiated.
Don’t take our word for it: this is what the people who visited the generating station with our guides had to say.
Very interesting. I got answers to questions I’d wondered about for ages.
Enthusiastic, pleasant guide. Very knowledgeable about the generating station’s history.
Super! Everyone should take advantage of it.
Visitors aged 18 and over must present official photo ID.
(accepted ID: health insurance card, driver’s license or passport)
Reservations are required at all times and must be made at least 24 hours in advance.
About 90 mins
Tours start at set times. We recommend that you arrive 15 minutes in advance.
From June 6 to August 28, 2022
Daily at 9:30 a.m., 11:15 a.m., 1 p.m. and 2:45 p.m. (reservations required)
From September 1, 2022 to May 31, 2023
Saturdays at 9:30 a.m., 11:15 a.m., 1 p.m. and 2:45 p.m. (reservations required)
School tours
View all information
Beauharnois Generating Station and Interpretation Center
80, boul. de Melocheville
Beauharnois (Québec) J6N 0M1
Tel. : 1 800 365-5229 (between 9:30 a.m. and 4 p.m.)
Email: : visites.beauharnois@hydroquebec.com
The tour of the generating station is on foot and includes some stairs. It is partially accessible to people with reduced mobility.
KÉROUL CERTIFICATION
The tour of the generating station is accessible or partially accessible to people with reduced mobility
The tour is suitable for adults and school-age children but is not recommended for children under the age of two, for safety reasons.
Electromagnetic fields may disrupt pacemaker operation. As a precaution, visitors with pacemakers may not participate in the part of the tour that takes place inside the generating station.
Visitors must wear flat, closed-toe shoes and the safety gear provided inside the generating station. Note that part of the tour is outdoors. Dress accordingly!
Picnic tables
Free parking
Electric vehicle charging station
Accessible by public transit
Proximity to a bike path
Souvenir shop
Partially accessible to people with reduced mobility
Restrooms
For additional information
Free admission
Reservations are required at all times and must be made at least
24 hours in advance.
To reserve a free guided tour in English, please call 1 800 365-5229. For information, please call us or write to visites.beauharnois@hydroquebec.com
Try one of our two rallies while you’re on the premises, either before or after your tour.
It’s easy! Download the Tour Rallies app, choose a rally, then have fun taking the quiz! (Psst! The answers to all the questions can be found in the permanent exhibition at the interpretation center.)
