A wave of water that gushed out of an Alaskan glacial lake and sent a river surging to a new record level is causing flooding issues in the state capital of Juneau for the third consecutive August.

Emergency officials say new barriers appear to have worked as planned, with only scattered reports of water leaks.

A huge basin of rainwater and snowmelt dammed by Alaska’s Mendenhall Glacier has started to release, sending a potentially record surge of flooding toward parts of Juneau in what has become an annual