Priority Sidewalk Winter Maintenance Enter the first few letters of the street name you are looking for: Or view  Index Map  of entire City Sidewalks, represented by thick red coloured lines, are cleared by the City on a priority basis where access is imperative, such as around hospitals, schools and public transportation systems. These sidewalks are:. either blanket sanded or spot sanded as conditions warrant when snowfalls are less than 8 cm (3"); or plowed and blanket sanded when snowfall exceeds 8 cm (3") cleared within 36 hours of the end of a winter storm Due to budget constraints it is not possible for the City to plow all City sidewalks. If a sidewalk does not appear on this map, then it is not cleared by the City. To ensure the safety of residents in your area please remember to clear your sidewalks as soon as possible after a snowfall.