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Percent of Time Highways Clear of Snow/Ice During Winter Storms
Goal: Maintain at least 73%% unimpeded mobility for the current winter season.


Percent of Time Highways Clear of Snow/Ice During Winter Storms
2016/2017 Season

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74%

Why This Is Important

Idaho travelers need safe and reliable highways during winter storms.  Preventing the accumulation of snow and ice or quickly removing it from highways increases safety, mobility, and improves commerce.

How We Measure It

Idaho's 4,984 centerline miles of highways are broken down into 217 sections.  Over 46% of these highway sections, including the most heavily traveled corridors, have automated roadway condition sensors and weather information stations located where travel is deemed to be highly impacted by winter storms--high elevation summits, steep grades, bridge overpasses, etc.  This measure tracks the percent of time those highway sections with automated sensors and weather information stations are clear of ice and snow during winter storms.

What We're Doing About It

ITD is using this data from the automated roadway condition sensors and weather information stations to continuously improve the effectiveness of its winter maintenance efforts across the state.  The Department accomplishes this by customizing snowplowing practices and de-icing treatments for all sections of Idaho highways.


Percent of Time Highways Clear of Snow/Ice During Winter Storms
Target: Maintain at least 73% unimpeded mobility during winter storms.

  Goal
  Cumulative Percent for the Winter Season