For the third consecutive year, a wave of water gushed out of an Alaskan glacial lake, threatening the state’s capital city of Juneau. But, flood barriers installed by the city managed to prevent disaster from unfolding in the picturesque port town despite record-breaking water levels this week.

City officials say the flood threat has ended and credit barriers with preventing more damage from the Mendenhall Glacier outburst.

Some Juneau residents in the flood zone heeded warnings and evacuated after water started escaping the glacier's ice dam on Tuesday.