Montana Department of Transportation

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Winter Maintenance FAQs

What do the various road conditions mean?

Good Driving Conditions

Dry road
Wet road

Fair Driving Conditions

Slushy road surface
Scattered snow and ice
Scattered snow and and ice
a snowcovered road
Snowcovered road

Severe Driving Conditions

Ice or black ice
Reduced visibility
Snow and Ice
Snow and Ice
Blowing and drifting snow
Blowing and drifting snow