A Narrabri business could sink into the river as early as Spring if erosion problems are not resolved, a local councillor believes.
Councillor Maxine Booby told the council meeting this week the Doctor's Creek waterway had caused "severe erosion" after heavy February storms.
If left unaddressed the northern bank will continue to erode away, sending Narrabri's Sprayer Barn business into the river, she said.
"[The 2020 flooding] came down with such force that it took out enormous amounts of dirt. It's destabilised the bank," she said.
"Every time that there's a flush in the Namoi, which then comes through the creek side in Narrabri, it's destabilising that bank behind Sprayer Barn and they're losing dirt.
"It's an ugly looking site. When you look at it, seriously it's quite ugly in that there is a lot of erosion. If it's not checked in some way the Sprayer Barn area will fall into the Narrabri Creek.
"You can see it's going to happen, there's cracks in the ground. There's a tree on the edge of it now. When it falls, there'll be more dirt that falls into the creek."
About six or seven years ago, a flooded Doctor's Creek caused erosion on the town side of the river.
At the time, the Local Land Services spent about a million dollars reinforcing the bank with rockwall protection, saving it from further erosion, she said.
Cr Booby called on the council to seek an "urgent meeting" of all state government authorities to resolve the problem.
She also proposed that council request the previous report on the Doctors' Creek bank erosion issues so it could be examined to develop a solution for the current problem.
Her motion passed unanimously, at Tuesday's council meeting.
"I don't know the answer, I'm not a specialist in any way as far as restoration and flood mitigation, but something has to be done or some landowner will wake up one morning and say I'm not paying rates any more, it's in the creek!"
Cr Booby said the problem will continue to deteriorate until a solution is found to the problem - but it's not clear which agency is responsible for doing so
"If we have a wet Spring, there's a real concern. Another rain event like that Feb 2020 flood that came down ... will do untold damage. It can't fail to do untold damage," she said.
"I don't want to see someone lose their dirt and their building and their business."
Several creeks feed Doctor's creek, which in turn is a tributary of the Narrabri Creek, which is part of the Narrabri River.
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