Cameco Halts Key Lake Output, Cuts McArthur River Activity After Bridge Collapse
Updated
Updated · cameco.com · May 10
Cameco Halts Key Lake Output, Cuts McArthur River Activity After Bridge Collapse
9 articles · Updated · cameco.com · May 10
Key Lake mill has temporarily stopped production and McArthur River mine has reduced activity after flooding collapsed the Smoothstone River Bridge on Cameco’s main supply route in northern Saskatchewan.
The sites themselves were not flooded, but the bridge loss and restrictions on an alternative road disrupted deliveries of critical operating materials, with no timeline yet for normal shipments to resume.
Cigar Lake mine is still operating and Cameco said its consolidated 2026 annual production plan remains unchanged for now.
The company warned its 2026 outlook for the McArthur River/Key Lake operation could still be hit if road restrictions persist or replacement deliveries cannot be maintained.
A bridge collapse has halted a key uranium source. Is Canada's infrastructure ready for its global resource ambitions?
As a flooded bridge cripples a vital mine, are Western nuclear supply chains more fragile than we realized?
With a top uranium mine offline, will this supply shock push already high nuclear fuel prices even higher?