To the source, batman! https://www.codot.gov/travel/winter-driving/snow-removal-and-safety https://www.codot.gov/travel/winter-driving/snow-removal-and... > C

To the source, batman! https://www.codot.gov/travel/winter-driving/snow-removal-and-safety https://www.codot.gov/travel/winter-driving/snow-removal-and... > CDOT uses a variety of products to treat Colorado highways during a winter storm. All snow removal products contain salt with added corrosion inhibitors used to prevent or remove the buildup of ice and snow on roads and minimize the impact on vehicles. ---- > CDOT makes an anti-icing brine mix in-house at a rate of 42 cents per gallon. This product is applied hours before a snowstorm or ice storm and will appear as white stripes on the roadway once dry. > Unlike other anti-icing products used throughout the country, CDOT's brine mix contains a corrosion inhibitor, which helps prevent damage on both vehicles and infrastructure. Once snow begins to fall, or the temperature drops below freezing, crews will stop using the anti-icer and switch over to de-icers. ---- > Solid de-icers are used for ant-icing and de-icing on roadways during winter weather conditions. CDOT uses two types of solid de-icers: > Ice slicer — made of granular salt and magnesium chloride. > Sand or sand/salt mixture — mainly used in high elevations and the eastern plains where more extreme cold temperatures exist, and more traction is needed.