Officials say the floodwaters are swamping Alaska towns, tearing buildings from foundations, seeping into homes and covering roads. In Glennallen, the local utility is setting up Porta-Potties around the community, and area residents are asked to limit water usage. The state transportation department said there was water over a portion of the Glenn Highway on Monday, but the road remained open.

Breakup of the Yukon River over the weekend has led to serious flooding in Eagle, Circle and Fort Yukon.

An ice jam caused by warming spring temperatures near the village of Buckland has left most of the town underwater and cut off access to the airport road. Residents of the village of about 400 people are preparing to evacuate by boat if water levels continue to rise.

Dynamic breakup conditions are causing ice jams and flooding in Kuskokwim river communities, and significantly damaging infrastructure.

An ice jam is holding downstream of Napaimute, flooding the seasonal village. At Aniak, the ice is shifting, according to Aniak resident Dave Cannon.

A 7-foot "wall of ice" from a Susitna River ice jam slammed into Alaska Railroad tracks north of Talkeetna on Saturday, pushing the rails 25 feet off course, the railroad said Monday.The Alaska Railroad is racing to make repairs in time for the start of its tourist season on Wednesday.

5-23-12 Buckland River floods dumpsite - Buckland, Alaska, USA.