Albury police Superintendent Paul Smith said the number of additional officers would be assessed as needed, with the changes coming at a time when crossing numbers are predicted to grow.

"The military are commencing to withdraw from our checkpoints," he said on Friday.

"Operationally we're putting more police in where required across that footprint.

"We certainly greatly appreciate the ADF support throughout this operation."

He said the resources at the checkpoints, and the way the sites ran, was regularly under review with changes made as needed.

"The changing environment, you'll see our infrastructure at our checkpoints is changing accordingly from cold and wet weather, to hot weather," he said.

"Hopefully we don't have to be here throughout summer, but if we do we'll have plans to cope with that.

"I'm just as hopeful as every other resident that these checkpoints will be gone, and gone as soon as possible."

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He said in the meantime, the police force aimed to make the sites as efficient as possible.

About 70,000 passes are being scanned each day with 3.5 million crossings recorded during the closure.

The addition of more towns to the border bubble on Thursday is expected to increase crossing numbers.

Superintendent Smith said warm weather, holidays and grain harvesting would also likely add to the vehicles entering NSW.

He said the length of peak travel periods had been increasing.