Spring brings warmer weather, melting snow, and… slippery roads. As ice and frost linger on highways and sidewalks, salt trucks hit the streets to keep drivers safe. But have you ever wondered where all that road salt comes from—and what impact it has?
Where Does Road Salt Come From?
The main ingredient in road salt is sodium chloride, the same compound found in table salt. Mines in Ohio, Michigan, New York, Kansas, and Louisiana produce nearly 90% of the salt used on U.S. roads. It’s the most effective and widely used deicing method, but it comes with some serious downsides.
The Environmental & Vehicle Impact of Road Salt
As winter fades and spring arrives, road salt doesn’t just disappear. It runs off into streams, lakes, and rivers, disrupting plant and animal life. Too much salt in these ecosystems can damage habitats and even cause long-term environmental harm.
Salt also accelerates vehicle corrosion. If not washed off regularly, it can eat away at metal components, leading to expensive repairs.
Sand: A Safer, Cheaper Alternative?
Because of these concerns, many states supplement or replace salt with sand. Unlike salt, sand doesn’t melt ice, but it improves traction and helps vehicles maintain control on slick surfaces. It’s also about 75% cheaper and less harmful to the environment.
Stay Safe on the Road
No matter what deicing method is used, icy roads remain a seasonal hazard. Keep an eye out for salt and sand trucks, drive cautiously, and be aware of changing conditions.
Want to learn which states use the most salt and sand? Check out these resources:
State-by-State Salt & Sand Usage Salt Belt & Vehicle Corrosion Risks
