“I hope it doesn’t come to that,” he told radio station 3AW.
“The queues we’re seeing [outside Centrelink offices] will become longer.
“If we thought it was unsafe, we’d shut it down ourselves … no construction project is worth more than one worker’s life.”
The CFMMEU and construction companies have established protocols at sites to ensure the virus does not spread.
Workers are starting at staggered start times to minimise crowds, and there are two-metre rules in place in shared areas.
According to Mr Setka, workers are being “wiped down” and disinfected before they enter smoko areas.
The union boss, who was booted from the Labor party last year, said the health measures have slowed productivity levels slightly.