
Update, 7 p.m. Thursday:
Thane Road is now open.
The Alaska Department of Transportation posted on Facebook that crews had completed avalanche mitigation Thursday and reopened the road.
“Drivers are reminded not to stop in the avalanche zone and to use caution while traveling,” the post reads.
An avalanche advisory remains in effect for the Behrends neighborhood and other areas of downtown in the Mount Juneau slide path.
Update, 1:30 p.m. Wednesday:
Thane Road remains closed as the avalanche risk above it and the Behrends neighborhood remains high.
DOT plans to conduct avalanche mitigation Thursday morning above Thane Road if weather allows. Until then, the road remains closed for safety.
Update, 8:30 a.m. Wednesday:
Thane Road remains closed due to avalanche risk until at least noon Wednesday.
According to an update from the Alaska Department of Transportation, the avalanche hazard remains high for the portion of the road between the avalanche gates.
“DOT&PF crews are continuing to assess conditions. We will provide an updated status around 12:00 PM today,” the update reads.
Original story:
The city issued an alert Tuesday afternoon to residents living in downtown Juneau that avalanche conditions are elevated in the areas above Behrends Avenue and Thane Road.
The alert is not an evacuation advisory. But the city advises residents in the affected areas to prepare for an evacuation if conditions continue to worsen.
The alert comes after more than 30 inches of snow and freezing rain have fallen in the capital city during an ongoing winter storm. The city activated its new avalanche information page on Monday.
Ryan O’Shaughnessy, the emergency programs manager for the City and Borough of Juneau, says now is the time for residents within those areas to pack a ‘go bag’ and make plans to stay with friends or family in case evacuation is necessary.
“Folks need to be prepared to leave their homes at a moment’s notice,” he said. “I think one of the key things with avalanche hazard, specifically, is that things can change very rapidly and very quickly, and folks need to be prepared.”
Both areas are prone to avalanches. In January 2024, an avalanche blocked Thane Road and another dusted homes in the Behrends neighborhood after more than 30 inches of snow fell during a storm. No damage was reported in either incident.
Patrick Dryer is an avalanche forecaster and geohazard specialist at the Alaska Department of Transportation. He said the department will close Thane Road Tuesday at 8 p.m. in case there is a large avalanche, and will reassess in the morning.
“They could be large enough to reach the roadway and have debris on the roadway blocking access,” Dryer said. “And so we are doing our preventative closure here tonight during a period of increased hazard for everybody’s safety.”
Dryer dug a snow pit to evaluate the avalanche risk on Gastineau Ridge on Monday. He said Juneau’s extended cold, dry snap earlier this month created weak layers in the snowpack. Then this warmer winter storm piled on heavy snow.
“So we’re rapidly adding stress, adding weight to those weak layers that has the potential to fail, resulting in large avalanches,” he said.
But he says this snowfall pattern is unusual for Juneau, so he has a high level of uncertainty about the avalanche forecast.
“Is there going to be large avalanches, or will there be no avalanches?” he said. “With the intense precipitation and heavy snowfall we’ve had, we haven’t had a lot of observed avalanches. So, you know, it changes so fast.”
A winter storm warning remains in effect until noon Wednesday. Forecasters say another storm might be on its way to Juneau by the end of the week.
This is a developing story. Check back for updates.




