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Anti-Icing Program

What is anti-icing and how does it work?

Anti-icing is the application of salt brine to roads and bridges to improve road safety.

Brine is a liquid and is created in a 23% concentration of rock salt to water.  It is sprayed on the road surface before expected freezing temperatures and drivers may observe it as parallel lines on the road surface even after the pavement has dried. The liquid brine starts to work before precipitation or dew can freeze the road surface.  It works immediately as a barrier so that the precipitation doesn't stick to the road and slippery conditions are avoided.

If there is no precipitation, the salt brine can stay active on the road for several days.

Where do we use the anti-icing solution?

We apply liquid salt brine on roads, bridges, higher curves and bends in the road. It reduces the build-up of black ice, frost and packed snow. We put this liquid on our bridges first because bridges freeze faster than roads.

When do we use anti-icing on our roads?

Anti-icing normally takes place between October and April with most of the liquid applied in the months of November and December. It works best at moderate temperatures. Once temperatures become very cold, use of brine is not as effective.

How is the solution made?

Brine is inexpensive to make, can be made in-house, and is created using the correct concentration of water and salt. It works well in moderate temperatures, and one brine tank on a truck holds 7000 litres.

Salt brine:
Is produced by Region of Peel staff

Revised: Friday November 18 2016


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