Capricorn Highway (Emerald - Alpha), widen pavement

Works are underway to widen 3 high priority sections of the Capricorn Highway between Emerald and Alpha.

As the main east-west freight corridor connecting the Bruce Highway in the east with the Landsborough Highway in the west, the Capricorn Highway supports general freight, agricultural movements, and resource sector traffic.

The highway also provides access to essential services such as health, employment and education for towns including Alpha, Jericho and Barcaldine.


  • Improves safety
  • Improves network efficiency
  • Reduces travel time
  • Contributes to economy
  • Contributes to regional growth

Key features

  • Widen 3 high priority sections of the highway from about 25km to 51km east of Alpha to a width of 9m.
  • Replace 8 culverts and extend 25 culverts from about 25km east of Alpha.
  • Improves reliability.


The project is fully funded by the Queensland Government. Investment ID 1572870

Total investment
$9.65 million
Queensland Government
$9.65 million

Current status

Construction started in May 2021 with completion expected in late 2022. Local road crews from Barcaldine Regional Council are delivering the works.

Capricorn Highway (Emerald - Alpha), widen pavement location map

Location map of Capricorn Highway (Emerald - Alpha), widen pavement