Winter weather can wreak havoc on roadways, making them slippery and dangerous for drivers. Municipalities have two main options when it comes to treating icy roads: salt or sand. But which method is best? Let's take a closer look at the differences between using salt versus sand on roadways.
How Salt Works on Icy Roads
Salt, also known as sodium chloride, lowers the freezing point of water. When applied to roads, it prevents ice from forming and helps melt existing ice and snow. In Massachusetts, many cities and towns rely on salt to keep roads safe during the winter months.
One advantage of salt is that it's relatively inexpensive compared to other de-icing agents. It's also effective at lower temperatures, down to about 15 degrees Fahrenheit. However, salt can be corrosive to vehicles and infrastructure, and it can harm vegetation and contaminate water sources.
The Case for Sanding Roadways
Sand doesn't melt ice like salt does. Instead, it provides traction on slippery surfaces, helping to prevent sliding and skidding. Some municipalities in New Hampshire opt for sand over salt, especially in more rural areas.
Sand is generally safer for the environment than salt since it doesn't have the same contamination risks. It's also less corrosive. However, sand is only effective when it stays on top of the ice - it can easily blow away or get pushed aside by traffic. It also doesn't prevent ice from forming in the first place like salt does.
Which Method Is Best?
There's no easy answer when it comes to salting versus sanding roadways. Many municipalities use a combination of both methods depending on the specific weather conditions and location.
In New England, you'll find a variety of approaches. Connecticut primarily uses salt on state roads and highways. But in more northern areas like Maine and Vermont, sand is a popular choice, especially on lower-traffic roadways.
Ultimately, the decision of whether to salt or sand roadways depends on many factors, including budget, environmental impact, traffic volume, and weather conditions. Municipalities must weigh the pros and cons to determine the best approach for keeping roads safe during winter weather.
At McGovern Municipal HQ in Marlborough, MA, we specialize in providing municipalities with the latest plow trucks and sanders, as well as equipment and supplies for winter road maintenance. Our knowledgeable staff can help you determine the best approach for your city or town. Contact us or visit our headquarters at 401 Elm St, Marlborough to learn more.
