Overview

• An Alberta engineers’ report identifies relaxed manufacturing standards and material degradation from the 1970s as the key factors in the June 2024 Bearspaw Feeder Main rupture.
• The failed feeder main, built to last a century, provided about 60 percent of Calgary’s treated water before its premature collapse.
• Clean water gushed into city streets when the pipe burst, leading to strict water‐use restrictions that lasted until late September 2024.
• The report finds no evidence of municipal malpractice, confirming the City of Calgary met all relevant engineering regulations.
• Mayor Gondek has said increased investment in maintenance is essential and will detail planned system improvements in her upcoming announcement next week.