Public work crews got out Friday to ensure roads were clean and had traction ahead of plunging freezing temperatures.

Town of Brookhaven trucks got out to plow the remaining slush and lay down a salt-sand mixture ahead of the deep freeze.

"We are treating the roadways to make sure any residual material there doesn't re-freeze tonight," said Town of Brookhaven Highway Superintendent Dan Losquadro.

He said the focus shifted from clearing snow to ensuring that drivers don't slip on the roads.

"What we're loading into the trucks is a mixture of salt and sand because when you get down around 15 degrees salt will stop melting that water, so the sand mixed in there will provide traction," Losquadro added.

Earlier this week, icy roads caused a 24-car pileup in Roslyn.

Meantime, the highway superintendent in Smithtown said crews will be out through the night to respond to reports of icy conditions.

A Town of Islip spokesperson said the town did not have issues with ice because high winds helped to dry the roads on Friday.