ABSTRACT
The paper focuses on the experiences gained in developing the procurement strategy for the A303 Stonehenge. The removal of private finance led to a unique opportunity to utilise best practice from the private finance solutions and build them into the revised public procurement model. The use of availability moved the solution from a pure design and build to one embracing a maintenance period, where the contractors were accountable for testing and commissioning the assets to meet these requirements. Embedded in the approach was the use of outcome-based deliverables focused on targeting key areas that were important to the end customer and important for working in a World Heritage Site. The paper also highlights how high impact low probability tunnelling events were handled from a risk perspective and how the entitlement to a ground baseline report was removed. The resulting procurement provided an additional £200m of value delivered through the contract.
