The $80B Dam That Could Power Africa — And Why It Has Never Been Built

There is a stretch of river in Africa that could power a third of the continent. Forty-two thousand cubic metres of water per second — the second most powerful river on Earth — falling 96 metres down a 32-kilometre staircase of rapids. Engineers have known about it for sixty years. The plan exists: seven dams, 42,000 megawatts, more than twice the Three Gorges. The physics was settled before the moon landing. It has never been built. And the reason why is the most interesting engineering story never told. This is Grand Inga — the $80 billion dam on the Congo River. Two smaller dams already stand at the site. They were finished in 1972 and 1982, and today they run at roughly half power, quietly strangled by silt and sixty years of deferred maintenance, in a country where millions live without electricity. The World Bank approved the next phase in 2014, walked away in 2016 with just 6% of the money spent, and returned in June 2025 with $250 million. A treaty with South Africa is racing an expiry date. An Oxford study found large dams run 96% over budget on average. And a new kind of customer — the data centre — may be the most plausible path to construction in six decades, for reasons that should make everyone slightly uneasy. What's in this video: Why the Congo is the only great river on Earth that straddles the equator — and why that makes its flow almost supernatural The physics of head × flow, and why 96 metres of drop multiplied by 42,000 tonnes per second haunts engineers What actually happened to Inga I and Inga II — the silt, the turbines, and the slow collapse nobody filmed The Bundi Valley trick: how you build the world's largest dam without damming the world's second-largest river Why nobody on Earth will write an $80 billion cheque — and how the seven-dam design is really a financial instrument Project finance explained: why lenders buy contracts, not concrete, and why you cannot securitise a village The 2013 South Africa treaty, the 2023 deadline that came and went, and the suitors who could not wait forever The transmission problem: why a quarter of the budget is wire, and why the cable passes over villages it cannot serve The Oxford numbers: 96% average cost overruns, 44% delays, and what that does to a fragile economy Solar got cheap while Inga sat in meetings — the strongest argument against, steelmanned properly The 35,000 people in the Bundi Valley, and what compensation forms cannot measure The World Bank's return, the 2035 timeline, and the two futures still live today Subscribe for more of the world's most impossible megaprojects ‪@AuthenticData3D‬ For Our Full Videos Playlist click and watch here:    • How It Works — The Hidden Engineering of E...   #Megaprojects #Engineering #GrandInga #CongoRiver #Dam #Africa #HydroelectricPower #Construction #CivilEngineering #Infrastructure #WorldBank #Documentary #FullProcess #EngineeringMarvels ⚠️ IMPORTANT: ABOUT THIS VIDEO ------------------------------------------------------------------- This is an educational documentary analyzing the engineering, design and construction of public infrastructure, based entirely on open-source and publicly reported information. All visuals and animations are 100% synthetic, AI-generated conceptual representations. No real footage of any construction site, event, organization or personnel was used. No real individuals are depicted, and any resemblance to real persons is unintentional. Figures, timelines and technical details reflect publicly available reporting at the time of production and may change. This video is purely informational and intended for educational purposes only. ========================================================== #Megaprojects #Engineering #GrandInga #CongoRiver #Dam #Africa #HydroelectricPower #Construction #CivilEngineering #Infrastructure #WorldBank #Documentary #FullProcess #EngineeringMarvels