Cunningham Highway (Ipswich – Warwick), 2020 Disaster Recovery Funding Arrangements reconstruction works
The Queensland Government has restored the damaged section of the Cunningham Highway at Cunninghams Gap. This 2km stretch, leading up to the Allan Cunningham monument, suffered significant road damage during the bushfires in 2019.
Situated within the Main Range National Park, that is part of the esteemed Gondwana Rainforests World Heritage Area, the project demanded meticulous management to safeguard the surrounding environment. The project team faced unique challenges posed by the complex topography, requiring extensive design work, including geotechnical and structural assessments, before initiating the reconstruction process.
Benefits
- Restores damaged infrastructure
- Contributes to economy
- Contributes to regional growth
Key features
- Installed 20,000m2 of rockfall protection drape mesh.
- Installed over 1km of roadside rockfall protection fencing.
- Reduced the steep road grade at the top of the crest to provide a smoother ascent at the final bend of the highway with fewer breakdowns.
- 1 emergency stopping bay was constructed approximately 1km east of the Allan Cunningham Monument. 2 stopping bays have been constructed near the Crest Carpark.
- 7 retaining walls were built along the downslope section of the eastbound traffic lane road.
- 4 soil nail walls were constructed on either side of the road at the crest.
- Closed Circuit Television (CCTV) and monitoring systems were installed for real-time traffic and slope condition monitoring.
- Wide centre line treatments were added to increase separation between opposing traffic lanes
- Guardrails with rubrails were installed for motorcyclist safety.
- Works were completed at the West Gap Creek picnic area.
- Pavement works were completed.
Cunninghams Gap reconstruction project key features flythrough video
Funding
The recovery works were jointly funded by the Australian and Queensland Governments through the Disaster Recovery Funding Arrangements (DRFA).
Community engagement
Extensive consultation was conducted with the freight, agriculture, tourism, and construction industries, as well as local businesses and neighbouring communities, to better understand travel patterns and needs.
Feedback from industry and the community was invaluable, leading to a review of project elements to reduce impacts on road users.
Information for heavy vehicle operators
A series of videos to help truck drivers safely navigate Cunninghams Gap throughout reconstruction was launched by the project team.