This is the second reported roof collapse in Anchorage in two days.

The roof collapsed at a South Anchorage gym during a fitness competition. The Anchorage Office of Emergency Management cautioned residents that the city has had near-record snow conditions this winter, and residents should consider the snow load on their roofs. Officials also warned that property owners should exercise extreme caution if removing snow from their roofs themselves.

The library in Palmer partially collapsed on Wednesday evening near closing time.

City officials say crews have made progress. But there are challenges. Crews are currently focused on hauling snow from main streets that are near schools, said Kohlhase’s Thursday email. He said he hopes to get every school cleared by the time classes resume on Monday, Jan. 9.

All schools in Anchorage and the Mat-Su Borough are closed Wednesday due to slick roads across the region, as snowfall continues. “This is the heaviest snowfall the Anchorage area has seen in over 20 years,” said state Department of Transportation spokesman Justin Shelby. “Our crews are keeping up as best they can.”