Calgary’s water consumption has recently surged to 501 million litres in a single day, surpassing the city’s recommended limit of 500 million litres while crucial repairs are underway on the Bearspaw South Feeder Main. This spike has prompted officials to urge residents to conserve water, amidst concerns over the sustainability of the city’s water supply during this critical period.
Water Use Exceeds Sustainability Threshold
On Wednesday, the city reported that residents consumed over 501 million litres of water, a figure that falls into what city officials have termed the “risky red zone.” This situation arises as the Bearspaw South Feeder Main, which typically provides around 60 per cent of Calgary’s water, is undergoing significant repairs due to two major failures in the last two years. The current water restrictions were implemented on March 9, following the feeder main’s shutdown.
During this time, Calgary has relied heavily on the Glenmore water treatment facility to meet the needs of the city and several nearby communities, including Airdrie, Chestermere, and the Tsuut’ina Nation.
Ongoing Repairs and Future Upgrades
The repairs on the Bearspaw South Feeder Main involve reinforcing weakened sections of the existing concrete structure. At the same time, the city is also engaged in a long-term project to replace the feeder main with a new steel pipeline, which is expected to be completed by the end of 2026.

Michael Thompson, Calgary’s general manager of infrastructure services, emphasised the importance of water conservation during a recent update. “We aim to save 25 litres of water per person each day,” he stated. He pointed out that small changes, such as reducing the number of dishwasher or washing machine cycles, can significantly contribute to meeting conservation goals.
Construction Plans and Community Impact
The ongoing construction includes essential rebar work, which has been completed, and concrete pours are now underway. Additionally, the replacement of valves at the Shaganappi pump station is scheduled for completion this weekend. However, this process will also involve the use of approximately 5 million litres of water to refill one section of the feeder main.
Thompson further noted that starting March 24, construction will commence on the final microtunneling shaft at 16th Avenue and 44th Street. This work will necessitate setting up a construction zone in the parking area, with anticipated traffic disruptions expected until its completion in December.
The Path Ahead
The ongoing reinforcement efforts, alongside the water restrictions, are projected to last for another two weeks before the feeder main can be reactivated. In tandem, the city is progressing with the comprehensive replacement of the entire Bearspaw South Feeder Main.

Why it Matters
The recent increase in water consumption underscores the critical balancing act Calgary faces between meeting the demands of its growing population and ensuring environmental sustainability. As the city navigates these infrastructure challenges, the calls for water conservation highlight the importance of community engagement in safeguarding this vital resource. Residents’ cooperation is essential not only for overcoming current challenges but also for ensuring the long-term viability of Calgary’s water supply amidst changing environmental conditions.