Calgary’s water restrictions aren’t just restrictions in Calgary. More than 80,000 residents in Airdrie also are bracing for the return of the shorter-shower-fewer-flushes regime on March 9, after the city’s announcement last week that it’s going ahead starting on that day with work to reinforce a critical but crumbling underground watermain, the city’s most important. That pipe also provides water to Airdrie and several other neighbouring communities. Heather Spearman in the Mayor of Airdrie.