Calgary's Booms: Why the city's foundation is failing

[CALGARY, AB] — The pipes are finally talking. After decades of boom-and-bust growth that built Calgary fast, cheap, and optimistically, the bill has arrived — and it is staggering.

Three Booms, One Reckoning

Calgary has run three distinct growth super-cycles. The first, from 1971 to 1981, exploded the city's population from roughly 400,000 to 600,000 in a single decade — a 50% surge that the city's small-town tax base genuinely could not sustain. Planners laid pipe fast and built the "Great Ring" of suburbs — Silver Springs, Canyon Meadows — with the confidence of a city flush on OPEC-crisis oil money.

The second boom, from 2003 to 2014, added another 25,000 to 30,000 people per year as Oil Sands investment poured in. The city got the Peace Bridge, the South Health Campus, and Stoney Trail. It also got a hard lesson: sprawl is a fiscal trap. That realization drove the 2010 Offsite Levy restructuring, finally making developers pay for the infrastructure their projects demanded. Smart. But it didn't fix the old stuff already in the ground.

And now this. The current surge — driven not by $100 oil but by Calgarians fleeing Toronto and Vancouver rents — added nearly 100,000 people to the metro in a single year between 2023 and 2024. The vacancy rate has cratered to near 1%. And those 1970s pipes? They finally snapped.

The Pipe That Broke Calgary's Confidence

On December 30, 2025, a catastrophic break hit 16th Avenue — the second failure of the Bearspaw South Feeder Main in less than two years — triggering Stage 4 water restrictions across the city. It wasn't bad luck. As reported by the Calgary Herald, the failure was "decades in the making." Water restrictions were lifted April 1, 2026, after the latest round of fixes, but city officials were clear: this may not be the last time.

The math is brutal. City councillors were informed in February 2026 that $1.7 billion worth of critical infrastructure assets are in poor or very poor condition. The total infrastructure gap over the next decade sits at $49 billion, with $17 billion earmarked specifically for maintenance and replacement of what already exists. In March 2026, council amended its borrowing bylaw to increase capacity by $515 million just to fund the Bearspaw South Feeder Main replacement. That same month, Provincial Affairs Minister Dan Williams ordered a third-party investigation into how Calgary's water main problems got this bad — with Former Mayor Naheed Nenshi's past administration in the frame.

Fix It First — Or Keep Building Out?

Mayor Jeromy Farkas has framed his approach around a "fix it first" philosophy, and the 10-year capital infrastructure plan now in development will attempt to prioritize $49 billion in needs across a city still growing at a historic clip. The city is also running North America's largest office-to-residential conversion program downtown, spending over $200 million since 2021 to support 21 projects at a $75-per-square-foot subsidy — an attempt to grow inward, not outward, and stop repeating the suburban sprawl mistakes of 1975.

Ward 12's Coun. Mike Jamieson and Ward 2's Coun. Jennifer Wyness have questioned whether taxpayer dollars for downtown conversions are the best use of limited capital when pipes are literally failing under the streets.

It's a fair fight. The city cannot afford to do everything, and everybody knows it.

The 70s boom built the foundation. The 2000s boom admitted it was cracking. The current boom is the moment when Calgary either fixes the foundation for real — or discovers what happens when you don't.

Those irrigation companies already eyeing the exits have a pretty clear answer.