Calgary has begun replacing a critical water feeder main, the same line that failed without warning last December, and the city says it is pushing to finish the job in roughly a year rather than the three to four years such a project would normally take. Mayor Farkas and the project's general manager have spoken repeatedly about the accelerated timeline, framing it as an urgent effort to secure the city's water supply. Officials say the compressed schedule is a central goal shaping how the work is being carried out.
The replacement combines two construction methods chosen according to the terrain and the schedule. Crews are using microtunneling to pass beneath a series of major obstacles, including 16th Avenue, the Bow River, the CPKC railway and the Stoney Trail interchange, where there was little room for open excavation given the timeline. Along 34th Avenue, by contrast, the work is being done by open cut, removing the road and digging down to install the new main.
On the open-cut sections, the excavation runs from the back of the sidewalk on one side of the road to the back of the sidewalk on the other, with the roadway removed and a deep trench opened to lay the feeder main. The depth changes depending on location, and at 83rd Street the crews are deliberately going deeper so they can avoid closing the street and keep it open to traffic while the work continues.
To hold the aggressive timeline, the city is scaling up its workforce on the ground. On the 34th Avenue stage, the work started with two crews, and a third crew is due to join in July, with all of them driving in the same direction to speed up progress. Officials credited detailed planning that tries to anticipate problems before they arise so the team is ready to address them as the construction advances.
Until the new pipe is installed and operational, officials cautioned, the existing main can break again at any time without warning, exactly as it did on December 30. If that happens, the city said it would have to move into water restrictions regardless of the time of year, and it asked its partners to be prepared for that possibility, a particular concern with the Stampede approaching. Operating on a single pipe and one treatment plant leaves little margin if something goes wrong.
Beyond the immediate repair, the city pointed to the ever-present risk of drought, describing Calgary as a big city that relies on two small rivers, even though spring runoff is currently providing a strong supply. Officials directed residents to a road map published on calgary.ca that sets out steps such as creating a dedicated water utility and a new department to run it, alongside governance changes and further infrastructure upgrades intended to serve Calgarians in the years ahead.