Ive seen plow trucks on the road that sometimes arent spreading salt. Why dont they since theyre there anyway?
Salt does not melt ice, but it does lower the freezing temperature of water. This works down to a temperature of approximately 20 degrees. At critical temperatures, applying salt to roads packed with snow or ice may create worse problems by causing the snow or ice to “glaze” and form a slick shiny surface. At times, during windy storms, snow will often blow off a dry, bare road, whereas if salt is present on the roadway, the snow may begin to stick and create a slick surface. We monitor the forecast and current temperatures to determine the most efficient use of our salt.
