Rockhampton's Fitzroy River has come under fire since being unveiled as a Games venue after questions were raised, including concerns over it being a home for freshwater crocs.
In the latest blow, a Games authority study reportedly revealed the river would need to be widened significantly and dredged to meet Olympic requirements for competition.
But Deputy Premier Jarrod Bleijie was adamant an alternative venue was not being considered as he delivered a 2032 update, 12 months after announcing the Games venue delivery plan.
"There's been lots of discussion about this - well, I can confirm that rowing in Rocky is rowing in the right direction," he told the Queensland Media Club in Brisbane on Wednesday.
"No other venues are being considered."
The river's strong current has also come under question, sparking speculation the Sydney International Regatta Centre may host 2032 rowing if a suitable Queensland venue was not confirmed.
Mr Bleijie said World Rowing and the International Canoeing Federation had backed the next phase of the Fitzroy River site's analysis.
A full 2km competition course along the reptile-riddled river was the "preferred field of play", he said.
"It will be a permanent legacy facility, not temporary, and is contained within our $7.1 billion budget," Mr Bleijie said.
"This despite the best efforts by some elites who have been trying to take rowing away from regional Queensland, or taking it away from Queensland altogether."
An independent river evaluation was under way to assess features such as its flow, water levels and wind, he said.
The 2032 update provided a sneak peek of its centrepiece - the 63,000-seat Brisbane Stadium - along with news on other proposed venues.
The latest artist's impressions were revealed of the $3.8 billion main stadium to be built in a "central position" of inner-Brisbane's Victoria Park.
Early works will begin once the land is transferred to the Games Independent Infrastructure and Coordination Authority on June 1.
The size and shape of the field of play is equivalent in size to the Melbourne Cricket Ground.
Images of the proposed Brisbane Arena at inner city Woolloongabba were also released.
Two consortiums have been shortlisted to deliver the potential 2032 venue along with an adjacent entertainment and housing precinct to be built post-Games after the nearby Gabba is bulldozed.
Architects have been selected for other Games venues - Sunshine Coast's 10,000-seat stadium and the Moreton Bay Indoor Sports Centre.
Construction for all venues would be on time and on budget, Mr Bleijie said.
But the deadline for completion was becoming "razor sharp", infrastructure engineer Felicity Furey warned.Â
"The longer these major delivery decisions are delayed, the more pressure shifts onto the people actually building the infrastructure," she told AAP.
"That's when risk increases and projects become more likely to face compromises on time, cost or outcomes, which in this case could jeopardise the delivery."
Almost 20 new and upgraded venues across the state will be constructed for the Games.
Besides the Fitzroy River, Brisbane Stadium has arguably created the most controversy with multiple legal applications to stop work at the Victoria Park site.
The applications have been made under federal Indigenous heritage protection laws.
The federal government has rejected one application to cease work on Victoria Park on Indigenous heritage grounds.
The Commonwealth appointed an independent mediator to work with the Games authority to "avoid harm to cultural heritage" and is set to advise on the remaining applications.
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