A breakthrough at Bribie Island which caused damage to parts of the Sunshine Coast shoreline has officially closed as the final push of sand reconnected the Island barrier overnight.

The breakthrough was caused by large swells that formed as part of ex-Tropical Cyclone Alfred early this year.

About 20 Hall Contracting personnel were working around the clock to deliver the project.

Jen Kettleton-Butler, a volunteer with the Pumicestone Passage Catchment Management Board (PPCMB) said it was a momentous moment for Caloundra.

"The tide has been turned overnight and I don't mean that lightly," Ms Kettleton-Butler said.

"That Alfred breakthrough started on February 27 this year and I was standing on the Island the moment it broke through by sheer coincidence.

"It widened to about 450-metre

See Full Page