What Really Happened at the Millennium Tower? on HackerTube: recommended by 2 Hacker News commenters across 2 separate months, 2022–2023.
explainer · dated
Practical Engineering explains why San Francisco's Millennium Tower is sinking and tilting, covering how geology and foundation design (friction piles in the Colma Formation) affect skyscrapers. It also covers the fix being attempted.
HN commenters point to it as the well-made, detailed explanation of the Millennium Tower debacle whenever the tower comes up.
“Grady also has an excellently made video about the leaning Millennium Tower in SF”
3 Hacker News comments link this video. Each one links back to its thread.
Here is someone who goes into detail about the Millennium Tower debacle: ▶ this video In short, shortcuts, or more charitably, miscalculations. They really thought they had enough margin to work with but obviously that wasn’t the case.
in “CA Cities to Lose All Zoning Powers in 2 Days” · View on HN
Grady also has an excellently made video about the leaning Millennium Tower in SF and what they’re doing while still trying to fix it. ▶ this video
in “Myths about construction” · View on HN
It's been interesting watching this unfold, some good videos around it: Most recent report from engineer mentioned in article to oversight committee: [link] (Item 8, around 2 hours in) New Project Aims To Reinforce, Level Out Millennium Tower - [link] What Really Happened at the Millennium Tower? - ▶ this video SF Millennium Tower Tilts Quarter Inch in Four Days - [link] Despite Warnings, Repairs on San Francisco’s Millennium Tower Caused Additional Sinking - [link]
in “San Francisco Millennium Tower tilting 3 inches per year” · View on HN