Bearspaw South Feeder Main replacement moves ahead as fall water shutdown approaches

Calgary’s effort to replace the Bearspaw South Feeder main is progressing on schedule, with major construction milestones reached and a system shutdown planned for mid‑October.

City officials say Stage A of the replacement project is now complete, after 3.7 kilometres of microtunnelling between the Shaganappi Pump Station and 73 Street NW.

Crews have installed the full concrete carrier pipe and placed more than two kilometres of new steel feeder main inside it.

Stage B work in Bowness, done through open-cut excavation, has reached 40 per cent completion, according to the city.

More than one kilometre of pipe is in the ground, three blocks remain active, and several have reopened to traffic. Additional blocks are expected to reopen next week.

Beginning in September, the city will start connecting the new feeder main to the existing system.

Mid‑October tie‑ins will trigger Stage 4 outdoor restrictions and indoor conservation. While the feeder main is offline, crews will complete six proactive repairs on a separate pipe section along Parkdale Boulevard and Memorial Drive.

The new pipe is expected to be commissioned in mid‑November.

Officials say a temporary shutdown of the Bearspaw Water Treatment Plant may require outdoor water restrictions depending on weather and demand. Mayor Jeromy Farkas discussed the potential shutdown last week, saying the plant will close for less than a week to complete electrical work.

The city says residents and businesses impacted by Bearspaw Feeder Main Replacement work can access support through the project’s Community Resource Centre at the Bowness Community Association.

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