Hamilton Beckett Rd Intersection Upgrade

Civil Project Partners (CPP) was commissioned by HDR to provide P50/90 cost estimating services for the Beckett Road and Hamilton Road Interchange Upgrade, McDowall, Queensland from preliminary design through to detailed design.



Project information

Project Owner
Brisbane City Council
Preliminary Design and Detailed Design
McDowall, Brisbane, Queensland
Capital Cost
Delivered by Doval, 2018


The scope of work included the intersection and approaches from all four directions of approximately 200-300 meters down each leg.

  • Increasing the westbound capacity on Hamilton Road from a single lane to two through lanes
  • Road widening and intersection road works
  • Traffic signals and road lighting
  • Bored pile retaining wall with capping beam
  • ~2,500 tonnes of asphalt


Service Provided

CPP provided a P50/P90 cost estimate at each design stage which informed the client of key cost drivers of the project. The north-east retaining wall was valued engineered with geotech engineers to find the right balance, CPP providing cost input into the decision making and also risk and opportunity facilitation.

  • P50/90 cost estimate
  • Construction program
  • Risk and opportunity facilitation and register

CPP’s cost estimate at detailed design stage finished within 2% of the median tender price.

Tools used

Return to projects