A worker drives a forklift at Cameco’s uranium milling operation in Key Lake, Saskatchewan. Cameco says production at the mill has been paused after flooding caused the collapse of a bridge along the site’s primary supply route. (Image Credit: submitted photo/Cameco)
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May 11, 2026 | 9:00 AM
Uranium mining giant Cameco says it has halted production at its Key Lake mill and slowed activity at its McArthur River mine after a bridge collapse on Highway 165 impeded an essential supply route.
The company said its sites in northern Saskatchewan aren’t directly impacted by the spring flooding that has swept through the area in recent days, but the collapse of the Smoothstone River Bridge has made it difficult to get crucial supplies to the sites.
According to Cameco, the bridge is the primary route used to transport supplies to Key Lake and McArthur River, and road restrictions mean an alternate route can’t be used.
Troy Lariviere witnessed the collapse, and he shared a video of the bridge falling into the fast-moving water:
