The Chunnel project aimed to build a tunnel under the English Channel connecting France and the UK. It was one of the largest privately-funded infrastructure projects ever involving multiple governments, banks, and contractors. [1]
The project went over budget, with costs increasing from $5.5 billion to $14.9 billion due to scope creep and delays. Issues included lack of proper risk management, incompatible requirements between parties, and breakdowns in communication. [2]
Key lessons included the need to give equal importance to technical and functional project management, ensure contracts and financing allow for contingencies, limit external stakeholder involvement in operations, and leverage new technologies and lessons from prior projects for large, complex ende