During winter 2018-2019, the City continued the snow and ice control pilot that was started in 2017. The pilot focused on using the right tool for the right conditions, including salt, sand, brine or mechanical means. As part of the pilot, anti-icer brine was applied to about 3,000 km of roads, or about 40% of Edmonton’s arterial and collector roads.
Anti-icer is a calcium chloride solution with an added molasses corrosion inhibitor. It is applied in a thin layer to roads, either before a snow event or after a snowfall. The brine prevents the snow from sticking to the pavement, helping the roads to stay clear longer and making snow removal easier. It reduces the need for plowing and sanding.
During the initial pilot, brine was applied in small quantities to select arterial roads once per snow event, before the snow fell. Roads treated with brine stayed bare longer, road surface friction increased and stopping distances were reduced.
We will ensure we are using the brine to its maximum effectiveness during this pilot. This includes developing processes, collecting data, training our people and continually monitoring weather patterns.