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KSDK – The Missouri Department of Transportation started pre-treating roads across the state Friday in anticipation for a storm expected to blanket the area in up to seven inches of snow in spots.

Workers began 12-hour shifts on Saturday – that means 500 people with 200 trucks throughout the region.

Those long shifts will continue until Monday or Tuesday.

"We're using just about everything we have," MoDOT District Engineer Becky Allmeroth said. "With the ice, we're absolutely going to be mixing some sand and some cinders in there, so we have some abrasives. We're using the salt. We're using the beet juice. We're using some calcium chloride too, for those lower temperatures to make the salt more effective."

Illinois crews, meanwhile, have been pre-treating roads since Wednesday, and hoped to have 80 percent of the roads prepped before the storm even hits.

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