Iowa D-O-T crews are using thousands of tons of salt to fight this ice storm. Dennis Burkheimer, the D-O-T’s Winter Operations Administrator,says D-O-T crews are applying at least 10-thousand tons of salt per day. Some of that salt is mixed with water to make a brine so the salt doesn’t freeze when it hits the road. Burkheimer says the D-O-T is a bit low on salt.But Burkheimer says it’s no emergency as there’s plenty of salt to buy, it’s just a bit more expensive than the salt they purchased under contracts negotiated before this winter hit. Where does the road salt come from?Salt is selling for about 66-dollars a ton, more than double what the D-O-T had been paying.