A SURVEY of the Burnett River has found submerged objects in shipping lanes and dredging will be required before the port can reopen.
Gladstone Ports Corporation's Bundaberg manager Jason Pascoe said a comprehensive survey was completed last week to determine the impact of the recent floods, and that a time frame for reopening was impossible at this stage.
The hydrographic survey identified 6x4m object which could be a pontoon in the channel.
"We are working closely with other agencies and, most importantly, in consultation with Maritime Safety Queensland," he said.
"We're not in a position at this stage to comment or give time frames."
Mr Pascoe said the survey revealed that silt would have to be dug out after the recent floods - the worst in recorded history.
"Dredging will be required before the port can be reopened to commercial shipping," he said.
"A number of navigational aids destroyed in the floods will also need to be replaced."
Mr Pascoe said he had been in contact with the Port of Brisbane who performs the emergency dredging for Queensland ports.
"We have been talking with them for a couple of weeks now," he said.
"We have been assessing their availability and other matters."
Mr Pascoe said the survey showed a large area of the channel had experienced a high level of silting.
"The wharf berths and the swing basin have also been impacted," he said.
Mr Pascoe said the Gladstone Ports Corporation, which operates the port, was working with MSQ to continue to investigate the objects submerged within the port area.