NORTHERN VIRGINIA (WUSA9) -- The Virginia Department of Transportation has been treating the roads with salt-brine mix and other chemicals.
They have 800 crews in Northern Virginia clearing highways, secondary roads and residential streets. They're also putting down salt and sand on the roads.
Conditions worsened throughout the afternoon. Catherine Nickle lost control and crashed into a tree.
"I guess there was ice underneath me and I totally spun out so I tried to turn away so I wouldn't hit the tree," Nickle said. "Kind of shaking, I'm only 17 [years old], yeah scary."
While Nickle tried avoiding the tree in the median on Fairfax County Parkway in Sterling, she crashed right into it.
On neighborhood roads, we found kids playing in the snow and residents sweeping snow off their cars.
Juan Ramirez says he's concerned about the roads.
"Yeah I hope they're clean, I hope they're clean," Ramirez said.