The $6 Billion Bridge That Almost Failed Before It Opened

Imagine sitting under a brand-new, $6.4 billion bridge on a romantic date, only to find out 32 critical safety rods just snapped in half... before the bridge even opened. This is the real story of the San Francisco-Oakland Bay Bridge eastern span: how massive tectonic forces, bad heat treatment, and a microscopic chemical reaction called hydrogen embrittlement triggered an engineering emergency—and how a $25 million steel "saddle" and a humble tin of grease saved the day. Subscribe for simple, entertaining breakdowns of serious real-world engineering crises. #Engineering #BayBridge #Documentary #Architecture #HowItWorks