Calgary city officials attributed the cost overruns to inflationary pressures, supply chain and labour issues and a more detailed scope for the project.
Council also approved a shift of the city's overall tax burden towards residential properties, a shift that will continue by one per cent per year for the next three years.
Calgary's proposed budget adjustments include a list of 28 investment options as well as a shift to the property tax burden which could increase residential bills by 7.8 per cent.