The Albany Port Authority will start dredging the city's harbour next week as part of a project to recover a number of unexploded bombs.
The ordnance was dumped in the Princess Royal Harbour shortly after World War II and discovered in 2000.
The port's Colin Berry says divers have spent the past three months removing debris from the seabed, including old tyres and railway tracks, in preparation for the dredging.
Mr Berry says a vacuum-like device will now be used to remove the sediment and hopefully expose the bombs.
"We have some dredgers that are on the way from Perth at the moment and we expect to start removal of the sediment and whatever other debris is on the sea floor at the moment and that should start - it's expected to start next week," he said.
The Albany Port Authority is hoping to recover all of the unexploded bombs in the city's harbour by August, despite delays with the dredging.
The bombs were dumped in Princess Royal Harbour shortly after World War II and discovered in 2000.
The port's Colin Berry says divers have been removing debris from the seabed, including old tyres and railway tracks, since March to prepare for the dredging.
Mr Berry says dredging was supposed to begin a fortnight ago, but the machine required last-minute maintenance work.
"Around about two months, so we're looking at end of July, beginning of August it'll finish, subject to the weather of course," he said.
"A little bit of rain doesn't affect them, it's more the wind than anything."
The Albany Port Authority says the search for unexploded bombs in the city's harbour is drawing to a close.
A British bomb was recovered from the harbour in March as part of an effort to remove ordnance dumped in the water during World War II.
Acting Albany Port Authority chief executive officer, Gary Crockford, says the dredging process should be finished within the next few days and divers will then survey the area.
"We've found very little really, there's been the odd 50-calibre shell and old spanners and what have you down there, but nothing of real significance," he said.