A megaproject is an extremely large-scale construction and investmentproject.[1]
A more general definition is "Megaprojects are temporary endeavours (i.e. projects) characterised by: large investment commitment, vast complexity (especially in organisational terms), and long-lasting impact on the economy, the environment, and society".[2]
Megaprojects refer not only to construction projects but also decommissioning projects, which are projects that can reach multi-billion budgets, and have a high level of innovation and complexity, and are affected by a number of techno-socio-economic and organizational challenges.[3][4]
The OFCCP Mega Construction Project (Megaproject) Program involves projects valued at over $35 million.[5]