London Bridge's Hidden Enemy: The Water Below, Not Above

This is the story of how a river keeps winning against whatever stands in its way. The first bridge fought scour for six centuries through constant repair. The second bridge lost to settlement in under a century and a half. Each failure was invisible until it became irreversible, which is exactly how a river works when you build across it without understanding what it's actually pushing back against. SOURCES Old London Bridge — https://en.wikipedia.org/wiki/Old_London_B... London Bridge — https://en.wikipedia.org/wiki/London_Bridge London Bridge (Lake Havasu City) — https://en.wikipedia.org/wiki/London_Bridg...) Remains of the old London Bridge — https://www.historic-uk.com/HistoryMagazin... London Bridge, Arizona: 50 years ago — https://www.aarp.org/events-history/london... London Bridge — https://www.londonmuseum.org.uk/collection... What part of this story would you want to understand next? #LondonBridgeIsFallingDown #LondonBridge #AcrossTheOcean Chapters: 0:00 What was the first London Bridge actually built like? 0:29 What were the starlings, and why did they matter? 1:23 What did the narrowed river actually do to the water? 2:32 So what was actually happening underwater, year after year? 3:41 If it was losing that war, how did it stand for 600 years? 4:44 What finally ended the medieval bridge, if not collapse? 5:19 What replaced it, and did the new bridge solve the problem? 5:55 Did Rennie's bridge actually solve it? 7:00 So what do you do with a sinking Victorian bridge? 7:36 What happened to those stones once they left London? 8:40 What stands at the London site now? Narrated by an AI voice. Pictures are AI-generated illustrations unless credited above.