Food shortages and road blocks remain in Queensland flood aftermath

As roads remain closed due to flooding in Queensland, vital supplies are scarce and the threat of swollen creeks and catchments causing more flooding remains a concern.

Communities in the state's north have been cut off and stranded for days due to the severe weather, which has left supplies at some supermarkets dwindling.

The Burdekin River swallowed the Anabranch Bridge early on Wednesday, which cut off the only road in and out of Rita Island.

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Meanwhile the Bruce Highway near Proserpine was cut off for a third day with no way through on Wednesday morning.

Restless residents were at their wits' end as they remained queued up on the road.

Truck drivers with much needed supplies were among those caught up in the delays, which resulted in fewer items on the shelves at supermarkets.

Woolworths operations manager in Queensland Gary O'Donnell said team members were working to get stock onto shelves "as soon as possible".

However the process has now been made easier with part of the Bruce Highway, both northbound and southbound between Mackay and Proserpine, reopening.

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The people of Eungulla, two hours southwest of Proserpine, will have to wait a little longer for roads in their community to re-open.

The town is still cut off by floodwaters, making it too dangerous to cross roads.

Mackay mayor Greg Williamson said helicopters will be called in to deliver food if access remains cut for much longer.

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Williamson said based on current feedback it could be "days, maybe weeks" before traffic will be able to come up the Eungella range due to road slips.

However it is not all bad news in the community.

First-time mum Angel Mckay went into labour on Tuesday morning and gave birth to baby Hayley four hours later with the help of a retired doctor, a GP and a nurse.

"Definitely a very crazy last 24 hours from being asleep to delivering her on our local firefighter's loungeroom floor," she said.