Top Limestone Creek floodway upgrade

The project will increase the flood immunity of the Top Limestone Creek floodway.

Work started in April 2020 to increase the flood immunity of the Top Limestone Creek floodway, located about 45km north of Boulia.

The floodway is located on the Diamantina Developmental Road, a key transport link between Boulia and the major service centre of Mt Isa.  

The floodway is prone to flooding with the road closed during these periods. As there are no direct alternate routes available, this means costly diversions for the numerous industries that rely on this link. Road closures also result in the isolation of remote communities such as Dajarra, about 150km north of Boulia.  

The project will raise the floodway by 1m and widen the floodway to 8m. This provides a more reliable and resilient road network for all motorists.


  • Improves safety
  • Improves flood immunity


Total investment
$1.5 million
Queensland Government
$1.5 million
Project map

Top Limestone Creek Floodway project map