References 389% CONFIDENCEOverall confidence: 89%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

• [1]90%
  youtube.com/watch?v=q56dRLI0X7Y

  youtube.com· Posted Sep 15, 2026· Starts Jun 21, 2023 ✓· 90% of score

  Happened as dated, per the source: the pile-driving and load-shifting project "was finished earlier this month," in an article published June 21, 2023.

• [2]80%
  After 15 Years, Settlement Arrested at San Francisco's Millennium Tower

  enr.com· Published Feb 1, 2025· 9% of score
• [3]82%
  San Francisco's Infamous Leaning Tower Has Been Fixed

  sfstandard.com· Published Jun 21, 2023· 1% of score

  Construction research 2026-10-24: June 21, 2023 reporting quotes the homeowners association that the foundation stabilization was substantially completed and its pile/load-transfer engineering project finished earlier that month. This supports Completed for the pinned retrofit success announcement, not the original tower build or a promise to reverse every inch of its lean. US$100 million is the retrofit cost; the announcement date remains distinct from later closeout. Source quote: “A $100 million construction effort” The same opened article explicitly confirms finished work/delivery; the quoted cost applies to that exact scope.^[1]

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