Calgary investigates $35-45M water main failure, citing microcracking and road salt corrosion.

Calgary released a report on the June failure of the Bearspaw South Feeder Main, which led to water restrictions. The main cause was microcracking leading to corrosion and wire damage, likely exacerbated by high soil chloride levels from road salt. The city plans to study increased chlorides and enhance soil sampling. Repairs cost $35-45 million, and the city will consider new lining or parallel pipes to improve redundancy.

3 months ago
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