Brine solution should be applied to roads before a winter storm, typically 24 to 48 hours in advance, when pavement temperatures are above 20°F (-7°C) and the surface is dry. This proactive method, known as anti-icing, prevents ice and snow from bonding to the road by creating a protective barrier.

Application Timing: Apply brine just before snow, freezing rain, or frost is expected. It is most effective when applied to dry pavement, as moisture can dilute or wash away the solution.
Application Method: Specialized trucks with liquid tanks and spray bars distribute the brine evenly across roadways. The solution is usually a 23% sodium chloride (salt) and 77% water mixture, which lowers the freezing point of water to about 18°F (-8°C).
Benefits: Brine begins working immediately upon contact with snow or ice, reduces the need for post-storm rock salt, prevents ice from sticking, and allows for faster snow removal.
Visual Indicator: Treated roads may show faint white lines or a slight sheen, indicating the brine layer is in place.
Post-Storm Use: Brine can also be used during storms to pre-wet rock salt, improving its effectiveness and reducing salt bounce and waste.
Always maintain a safe distance from brine application vehicles, and wash your vehicle regularly to prevent corrosion from residual brine.