America`s Greatest Dam Is About to Lose Its Power Aug 19, 2026 -
The concrete will outlast every one of us. That was never the problem. The real threat is happening deep inside the dam, below the water — and there`s a countdown no one can stop. 00:00 Intro 01:32 How They Built It 06:05 The Real Problem 08:55 The Race Against Time 11:16 What`s Really at Stake