Highway upgrades near Queensland-NSW border affecting floodplain and ecology, farmers say

Boggabilla farmer Pete Mailler says there is not enough capacity in causeways and culverts after raising of the Newell Highway

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Upgrades to the Newell Highway near Goondiwindi on the Queensland and New South Wales border are changing the way water flows across the floodplain and impacting farms and ecosystems, residents and experts say.

Pete Mailler, a farmer from Boggabilla, says his property experienced a record flood height from Whalan Creek on one side last week - and equally extraordinarily" there was no flooding on the other side.

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