megaproject

mega- +‎ project

megaproject (plural megaprojects)

1. A very large public investment project, especially one costing more than one billion US dollars.
   • 2021 March 16, Simon Romero, Zolan Kanno-Youngs, “Trump’s Incomplete Border Wall Is in Pieces That Could Linger for Decades”, in The New York Times‎, →ISSN:

     Now the incomplete border wall, already one of the costliest megaprojects in United States history, with an estimated eventual price tag of more than $15 billion, […]

   • 2023 March 22, Philip Haigh, “AI driving HS2 innovations to improve efficiency”, in RAIL, number 979, page 57, photo caption:

     The Government's intention to rephase construction of the megaproject is likely to increase costs in the longer term.

• “megaproject”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

• megaproject on Wikipedia.Wikipedia