Yes, Concrete Can Float — If You're Good Enough
It sounds like a prank, but it's one of Canada's most beloved engineering traditions: university students design, mix, and paddle canoes made entirely out of concrete. This year's national competition brought teams together in Moncton, New Brunswick, where crews from schools across the country raced vessels that most people would expect to sink on contact with water.
Toronto Metropolitan University's concrete canoe team was among the competitors, and they shared their experience with CBC's The National — walking viewers through the months-long process of making a seaworthy craft out of a material that weighs about 2,300 kilograms per cubic metre.
The Science Behind the Spectacle
So how does it work? The secret is in the mix. Teams engineer ultra-thin concrete shells — sometimes just a few centimetres thick — using specialized aggregates, fibres, and admixtures to reduce density while maintaining structural integrity. The canoe has to be light enough to float, strong enough not to crack, and shaped well enough to actually move through water.
It's a full engineering project from start to finish: structural calculations, hull design, material testing, and then months of hands-on building. Teams sand, coat, and paint their finished canoes before loading them onto the water.
Racing Day
The competition isn't just about floating — it's a full regatta. Teams paddle sprint races, often in full race gear, and are also judged on their design report, technical presentation, and the aesthetics of the finished canoe. Points add up across categories, so a team that builds a beautiful, fast canoe and can explain the engineering behind it tends to come out on top.
Moncton hosted this year's event, bringing together some of the sharpest engineering students in the country for a weekend that's equal parts science fair and athletic competition.
A Tradition That Builds More Than Canoes
The Canadian National Concrete Canoe Competition has been running for decades and is organized through Engineers Canada. For many participants, it's a defining moment of their university career — the kind of project that ends up front and centre on a résumé and in job interviews for years afterward.
"You learn things you'd never get in a classroom," is how most alumni describe it. Project management, materials science, teamwork under pressure, and the very real stakes of watching something you built either race across a lake or slowly fill with water.
For TMU's team, making it to Moncton and competing on the national stage was the payoff for a year of early mornings, late nights, and a whole lot of concrete dust.
Canada's Engineering Pipeline in Action
Events like the concrete canoe competition are a reminder of the depth of engineering talent coming up through Canadian universities. From coast to coast, students are tackling real-world material and design challenges — and occasionally, paddling the results.
Source: CBC Top Stories via The National
