A concrete pour at an apartment project in Lyons was halted after workers alerted the construction union to a number of their concerns.
The work ban has since been lifted.
“We’ll have to investigate and see whether there’s stronger enforcement action that needs to be taken,” ork safety commissioner Mark McCabe said.
“Our first actions are to get the situation put back to right and make sure that safety’s being guaranteed.
“But there will probably be a financial consequence for the company. There was a number of concrete trucks that had to be turned away.”
Mr McCabe says engineers had given approval to a project that was clearly unsafe.
“If there was an emergency, ambulance crews would find it difficult to get up on that deck,” he said.
“The fact that the deck was not ready for the pour to begin, and yet the pour was going to begin if we hadn’t intervened, that was of serious concern to us.”
The shutdown comes less than two weeks after WorkSafe stopped another concrete pour on a construction site in Canberra’s north.
Mr McCabe says there is a growing trend of poor project management in the ACT.
“In terms of significant avoidable risks being passed onto their workers, I find that totally unacceptable,” he said.
Mr McCabe says there are significant consequences for companies that flout the rules.