A burst water main on Ann Street in Brisbane's Fortitude Valley is causing major peak hour traffic delays.
The road was initially closed after the pipe burst, but one lane was reopened to traffic a short time later.
Drivers heading into the CBD have been advised to try to avoid the area if possible.
Brisbane City Council said the south-bound Clem 7 toll fee was being waived for motorists trying to get around the disruption.
Michelle Cull from Queensland Urban Utilities said crews had turned the water supply off and were working to clear the debris and repair the pipe.
"There was quite a lot of water over Ann Street, which has now subsided," she said.
"The good news is that no customers are without water and fortunately also there wasn't any flooding damage to the properties.
"Two lanes will be closed tonight, and the crews will work through the night to hopefully reopen the road in time for peak hour in the morning.
"We're investigating the cause, but it's possible the wet weather has played a part. Heavy rain can cause the reactive clay soil to swell, and cause the pipes to shift and break."
