Expediting the reduction of road salt use in America

The use of road salt, the most common deicer used in winter maintenance, causes serious environmental impacts to our water, soil, air and prematurely destroys transportation system infrastructure in states that require winter roadway upkeep. The environment is revealing critical warning symptoms signaling that action must be taken quickly to cease and hopefully reverse the damage.

Current solutions and technology exist to reduce salt use but require a national effort to change past practices and attitudes. Ample research is available proving damage caused by road salt, but the U.S. has not collectively focused its efforts to reduce usage. Rather, we have ineffectively left this up to states to try and independently resolve. The result is continuing active contamination in many areas that utilize road salt.

This is neither an insurmountable, nor unprecedented, challenge. High sulfur air polluting emissions in the 1960s and 1970s led to the death of innumerable trees from acid rain and ozone depletion from the use of chlorofluorocarbons in the 1980s and 1990s caused a massive hole in the stratosphere over Antarctica. Like the Green Movement of the past fifteen years, it is within this country’s control to recognize the problem of using road salt, understand recommendations made from available research regarding ways to cease its progression and act.

Road salt use in the United States in the late 1930s used 5,000 tons of salt versus the approximately 20 million tons of road salt broadcast annually on roads and bridges in the United States according to The Cary Institute of Ecosystem Studies’ 2010 article, Road salt: moving toward the solution.

Thorough research supports the need to reduce the amount of road salt applied. This research proves that many freshwater bodies, ground water sources, and soils are already contaminated, and provides alternative and best application standards in road salt usage.

A large body of biological data available provides proof of the contamination to ecosystems from road salt. Other research highlights the damage to infrastructure costs approximately $22 billion to taxpayers annually. The study underscores existing current best management practices exist regarding operations, deicing alternatives and new innovations in chemical and technological means to reduce salt.

Roadblocks to reduce salt impacts

States experiencing seasonal snow events operate with independent best practice standards, have different training programs, and have few rules regulating the amount of salt that contractors and municipalities can use. In addition, extremely few winter maintenance certification programs exist.

There is no federal agency serving as a central resource for states to look to for proper standards. There is no central body of regulatory and policy knowledge that can be handed down to states in the form of baseline laws and procedures under which to operate. Eclectic winter maintenance practiced by individual states proves the need for consistent, centralized administrative supervision.

What change is needed to reduce salt use

Following these recommendations will expedite the reduction of road salt use in the United States, lessening future contamination to the environment while saving taxpayers billions of dollars every year.

Charles Lehn is Parks and Facilities Manager in Champlin, Minn. You can reach him at [email protected].