A constructed sea wall runs in parts along the back beach and is buried deep into the bedrock of the shore.

The walls work in conjunction with rocks buried under dunes that already perform a natural barrier to erosion, said City of Bunbury chief executive officer Greg Trevaskis.

“The sea-wall project is all about that – protecting infrastructure, so if storm events and storm surges occur there’s a level of protection,” Mr Trevaskis said.

Mr Trevaskis said he believed people would take a long term view of climate change effects and the enhancement would protect the coast until that time came.

“I think it’s not an immediate threat and after 30 or 40 years we will be much better placed to look at it.” he said.

He said Bunbury’s landscape was in continual change and 100 year events were being planned for, such as Robertson Road being designed to act as a levy.