The engineer’s report, which was prepared for Roads ACT, revealed the formwork was not braced to stop the girders moving sideways while concrete was being poured. This led to excessive stress on the structure.
ACT Chief Minister Jon Stanhope said he will not make any comment on the report until Worksafe completes its inspection.
ACT Work Safety Commissioner Mark McCabe said an investigation will be conducted while the bridge is being demolished.
“We have identified points in the demolition where it will need to stop, we’ll need to collect some of the material that’s there and take it away for analysis and consideration,” he said.
“The real evidence that we need is probably lying on the roadway underneath all of that mess.”
The head contractor for the project released a statement accepting the findings in the report.
“We are also holding our own internal inquiry into our processes to make sure nothing like this ever happens again,” the statement said.