America's Greatest Dam Is About to Lose Its Power

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 Some of the Hoover Dam footage in this video comes from Mojo Adventures -    / @mojo.adventures   — go check out their channel for some seriously cool videos and adventures!