Stranded residents in the Scenic Rim have set up a "flying fox" to access vital supplies such as baby food and medication after a local causeway washed away.
The Illinbah locals have been cut off by heavy rain and predict it will take another week for access to be restored.
Resident Becky Bell-Mcnee says they have made a pulley system with ropes to carry supplies over the flooded causeway.
"There are a few pylons that have been laid for the new bridge, so they've hooked rope up to both of those," she said.
"Then they've got a pulley with a big horse bag and they've got rope attached and they're pulling it back and forth."
She said residents were relieved to be getting vital supplies including baby food, petrol and medication.
STAY UP-TO-DATE WITH THE QUEENSLAND FLOOD HERE"A lot of food, milk, bread; the basics," she said.
"People were looking for baby food, so that was quite a concern.
"Petrol for generators, dog food; lots of people out here have animals.
'Worst is yet to come'
Scenic Rim Mayor Greg Christensen said up to 180 people remained isolated after the causeway at Flying Fox Road-Upper Coomera Road was damaged.
"These are mostly long-term families who are well prepared," he said.
"We still have the community of Upper Coomera road cut off because of ongoing rain.
"We cannot get in to fix the side-track there to roadworks that got washed away."
Canungra recorded another 46mm of rain in the last 24 hours but the mayor feared the worst was yet to come as the intense weather system moved further south.
"The locals are managing it very well which tends to happen in rural areas and we're providing assistance where we need to."
Mr Christensen said roads through Canungra, Kerry Valley and Christmas Creek were still disrupted.
"Think twice about whether you need to be on the road."
Local disaster coordinator for Gold Coast City Council Alton Twine said residents needed to "batten down the hatches".
He said the damaging weather system was expected to track further south on Sunday morning and residents needed to be vigilant.
"We need to prepare for the worst," Mr Twine said.
"It's probably not wise to just think about areas west of the M1 where we have the rain in the creeks that are certainly being impacted.
"A weather system like this will affect all of the city, so we really need to be careful in particular as we're out and about on the road network."
Mr Twine said council sandbag centres were open at Pimpama Tugun and Reedy Creek.
