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Section of Idaho 21 reopens after avalanche risk

This stretch of highway is known as Avalanche Alley and is very susceptible to avalanches. It closes several times during the winter months.

IDAHO CITY, Boise — The Idaho Transportation Department has reopened a 12-mile section of Idaho 21 after closing it Monday due to avalanche risk.

According to ITD's website, the highway between Grandjean and Banner Summit was shut down Monday evening due to avalanche risk.

This stretch of highway is known as Avalanche Alley and is very susceptible to avalanches. It has already been shut down and reopened several times this winter.

This comes just days after a Montana man was killed in an avalanche while riding a snowmobile north of Ketchum.

RELATED: A cold front will move through tonight, and take our temps back to below-average for the rest of the week

13 miles of U.S. Highway 12 in north Idaho also closed Monday afternoon due to the threat of avalanches in the area. ITD says the closure east of Kooskia could last for an extended period of time due to heavy snow and rain in the forecast.

ITD posted on Twitter travelers should check ITD's website for updates.

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