What a Significant Weather Event means for emergency snow removal in Ottawa
The City sets service standards by road class. Highway 174, the Transitway and arterials are worked from the start of accumulation within two to four hours, minor collectors trigger at 5 cm, and residential streets trigger at 7 cm with a 10 to 16 hour window once the snow stops. Those standards are suspended when a Significant Weather Event is declared, and severe storms need multiple passes with different equipment before a residential street is genuinely finished. That is the situation most people are calling us from: the street outside has not been touched, there is no published time when it will be, and the driveway behind it is irrelevant until it is. We are honest about the limit here. We can open your driveway, your walk and your path to the door. We cannot plow a City street, and no private contractor can.