Castlereagh Highway (St George–Hebel) flood immunity improvements and pavement resilience

The department is improving the flood immunity and resilience of the Castlereagh Highway near Dirranbandi.

In response to the large-scale infrastructure and economic impacts of multiple severe flooding events across southern Queensland in 2021–22, the department is undertaking improvements to minimise future flood damage and reduce road closures.

Benefits

  • Restores damaged infrastructure
  • Improves flood immunity
  • Contributes to economy
  • Contributes to regional growth
  • Improves network efficiency

Key features

  • Strengthening and altering levels of road surfaces to make them more flood resistant.
  • Installing larger culverts to improve flood capacity.
  • Drainage and floodway enhancements to improve run-off and mitigate erosion and scouring.
  • Batter protection to reduce impacts of high-velocity flows on bridges and floodways.

Funding

Assistance is provided through the jointly funded Commonwealth-State Disaster Recovery Funding Arrangements (DRFA).

Investment ID 2744073 and ID 2459935.

Current status

Construction is expected to start in August 2024.

Project map

Castlereagh Highway (St George–Hebel) flood immunity improvements and pavement resilience project map
Map of the Castlereagh Highway between 2.5km east of Dirranbandi and 38km south of Dirranbandi that illustrates the approximate locations of the planned immunity flood improvements and pavement resilience works.