The DOTD says they are in emergency operations mode right now.
"Which means we have personnel on duty 24 hours a day," said Kirk Gallien, District administrator for the Department of Transportation.
He says the hardest hit areas are East and West Carroll Parishes and Madison parish. Crews have been salting bridges and overpasses all over the area, from the Ouachita river all the way over to the Mississippi River Bridge near Vicksburg.
"It takes us time to get salt and apply salt to those areas that start to freeze, it tends to happen all at once," Gallien said.
DOTD says as of Tuesday afternoon, they've used over 115,000 pounds of salt on the roads in nine parishes, in less than a day -- they started off the year with one million pounds.
"We still have a fairly good supply of salt on hand," Gallien said.
Gallien says they will have crews monitoring the roads throughout the ArkLaMiss until this all clears up.