A rush of glacial floodwater swept down Alaska’s Mendenhall River on Wednesday morning, prompting evacuation warnings in parts of Juneau.

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

Officials warn Mendenhall Glacier’s ice dam could release massive flooding that surpasses all previous records in the state capital. Alaska authorities have issued emergency evacuation orders for parts of Juneau as the Mendenhall Glacier threatens to unleash record-breaking flooding on the state capital.