Nov 17, 2014 6:52 PM
DERRY- Winter is here and road crews are starting their prep work as salting begins.
"It remains the most cost efficient and type of anti-icing chemical used. There are other's out there and we continue to see what is out there and what might be more environmentally friendly," said Bill Boynton of New Hampshire Department of Transportation.
With the widening of I-93 and miles to maintain, road crews are facing a tough situation.
"Because in order to widen 93, and actually four impaired watersheds were looking to somehow reduce the chloride import to those watersheds. There was turmoil over widening 93 because they were going to be importing more salt to those watersheds to treat the roads," said Alan Cote of Superintendent of Operations in Derry.
But with few bodies of water in question, is sacrificing motor safety worth it?
"We said well you'll have to give us a good reason to reduce our salt use other than the fish in the brook are dying," said Cote.
The use of a new compound-chemical called brine has been added to winter event preparation kits- cutting down on the amount of harmful chemicals that mix in water run-off.
"Basically it's a mixture of salt and water that is put down before a storm happens to prevent ice and hard pack before it happens," said Boynton.
Brine is said to be just as effective as salt, being partially made of water this should reduce the amount of sodium chloride built up in bodies of water.
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