Highway closures due to inclement weather

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Posted at 8:48 AM, Jan 12, 2024

ITD crews are responding to winter weather across the state, closing many state highways due to heavy snow and blizzard conditions.

You can always check 511 for the latest up-to-date information.

As of late morning Friday, the following closures were in place:

Southwest Idaho

  • State Highway 21 from Grandjean Junction to Banner Summit
  • State Highway 21 from Idaho City to Lowman

Depending on the weather, the Idaho Transportation Department's avalanche team plans to drop explosives on Sunday within the 11 miles of avalanche paths along SH-21. These explosives will test the snowpack's condition. The Lowman maintenance team will begin cleanup once the team determines it to be stable.
South-Central Idaho:

  • U.S. Highway 93 from Jerome to Shoshone
  • U.S. Highway 20 from Fairfield to Mountain Home
  • U.S. Highway 30 from Hansen to Murtaugh
  • State Highway 75 from Shoshone to Timmerman
  • State Highway 46 from Gooding to Fairfield

Southeast Idaho:

  • State Highway 34 from Conda to Wyoming
  • State Highway 36 from SH-34 to Ovid

East Idaho:

  • State Highway 47 from Ashton to Bear Gulch
  • State Highway 32 from Tetonia to Ashton
  • State Highway 33 from Newdale to Tetonia. Note that Teton Pass in Wyoming is also closed. 
  • U.S. Highway 26 from Ririe to Swan Valley
  • State Highway 31 from Swan Valley to Victor 

"Plows will be out in full force today and until the winter weather subsides," ITD said Friday in a press release. "The department asks that those who do not need to travel stay home or time their trips around weather conditions."
To share the road safely with plows, travelers are reminded to:

  • Never pass a plow on the right. 
  • Give plows room to work by maintaining at least a three-second following distance. 
  • If multiple plows are working in tandem, do not attempt to move between them. 
  • Stay out of the blind spots. 
  • Drive for conditions. 

Allow extra time to travel.