LOWMAN, Idaho — The Idaho Transportation Department has closed State Highway 21 from Grandjean to Banner Summit (milepost 93.7 to 105.5) due to a high avalanche risk.
According to ITD, Wednesday afternoon’s decision was made because they expect the coming storm to trigger avalanches in the 11-mile section of the highway.
If you are planning on driving on this stretch of highway, ITD recommends an alternate route between the Treasure Valley and Stanley area as going east on I-84, exiting Mountain Home at exit 95 to U.S. Highway 20, and then heading north on State Highway 75.
Highway 21 will reopen when the snowpack has stabilized and the risk of active avalanches is reduced.
ITD plans to reassess conditions at 7:00 am Thursday morning, but in the meantime, you can find updates on closures and openings on ITD's website.
