CHICAGO — As piles of snow grow taller during this seemingly endless winter, the mounds of salt for spreading on the nation’s icy, slushy roads are shrinking, forcing communities to ration supplies or try exotic new ice-melting substances.
Cities have already gone through most of their salt well ahead of the time they traditionally really need it — when the coldest part of winter gives way to temperatures just warm enough to turn snow into freezing rain and sleet and roads into ribbons of ice.
“If we don’t get the salt, at some point people are going to be sliding all over the place like what you saw in Atlanta,” said Julius Hansen, public works director in the Chicago suburb of Glen Ellyn, citing last week’s television images of thousands of motorists getting stranded on ice-covered roads in the South.
So far this year, Glen Ellyn’s snow-removal crews have responded to 31 storms.
“In an average winter, we have 20,” Hansen said.
A community the size of Glen Ellyn, population 27,000, might use 50 to 100 tons per storm. A bigger community such as Waukesha, Wis., which has about 70,000 residents, could use 300 tons or more. The same storm in Chicago would call for more than 13,000 tons.
Demand is so high that salt gets more expensive every day. Communities are trying to decide what do to. They could buy a little more salt now, when it costs twice or three times more than earlier in the season, and hope it doesn’t snow too much more. Or they could wait until it does snow more and risk paying even higher prices.
In some areas, there has been so much snow that cities have had to find creative ways to stretch their supplies: spreading salt only on intersections and major roads and mixing it with sand. In Indiana’s Morgan County, there is so little salt left that what is on hand will be mixed with sand and used only on the hills.