Recent reports indicate that Calgarians consumed 501 million litres of water on Wednesday, surpassing the city’s sustainable target of 500 million litres during a critical maintenance period for the Bearspaw South Feeder Main. City officials have labelled any daily water usage above this threshold as falling into the “risky red zone,” urging residents to adopt conservation measures while repairs are being carried out.
Infrastructure Under Strain
The city initiated a series of water restrictions on March 9, following the shutdown of the Bearspaw South Feeder Main, which typically provides approximately 60 per cent of Calgary’s water supply. The shut-off was prompted by two significant failures within a two-year timeframe, necessitating urgent repairs to several vulnerable concrete sections of the feeder main. During this period, Calgary is reliant on the smaller Glenmore water treatment facility, which also serves adjacent communities such as Airdrie, Chestermere, and the Tsuut’ina Nation.
The repairs are part of a larger project that includes the complete replacement of the ageing feeder main with a new steel pipeline, scheduled for completion by the end of 2026. The dual effort of immediate repairs and long-term upgrades aims to enhance the resilience of Calgary’s water supply infrastructure.
Call for Conservation
In light of the increased water consumption, Michael Thompson, the city’s general manager of infrastructure services, has reiterated the importance of water conservation. During a recent update, he emphasised the goal of saving 25 litres of water per person each day. He illustrated how small adjustments in daily routines can contribute significantly to this target, noting that a single cycle of a dishwasher uses around 28 litres, while a front-loading washing machine consumes about 62 litres.
Thompson also provided an update on the progress of the repairs, indicating that the rebar reinforcement of critical pipe sections is complete. Concrete pouring has commenced, and backfilling around certain areas of the feeder main is underway. Moreover, he mentioned that valve replacements at the Shaganappi pump station are expected to be finalised this weekend, which will allow for the refilling of one section of the feeder main using an estimated 5 million litres of water.
Upcoming Construction Plans
Looking ahead, Thompson announced that construction on the last microtunneling shaft at 16th Avenue and 44th Street will commence on March 24. A construction zone will be established in the south side parking lot of 16th Avenue and is projected to remain in place until December, during which there will be temporary traffic disruptions.
The repair and reinforcement efforts, along with the ongoing water restrictions, are expected to last for another two weeks before the feeder main can be reintegrated into the city’s water supply system. Meanwhile, the replacement of the entire Bearspaw South Feeder Main is continuing in parallel, with completion targeted for December.
Why it Matters
The situation in Calgary highlights the delicate balance between water supply and infrastructure integrity, especially during periods of repair and maintenance. As the community grapples with the challenges of increased water usage amid necessary repairs, the emphasis on conservation is crucial. It serves not only to protect the water supply but also to foster a sense of collective responsibility among residents. In a region where water scarcity can quickly become a pressing concern, the ongoing efforts to improve infrastructure and encourage sustainable practices are vital for safeguarding Calgary’s future water resources.
