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>> "Bedrock is not needed to build a sky scraper..." True, but that's because of comparatively recent developments in geotechnical engineering. They needed it
by avn2109 11y ago
>> "Bedrock is not needed to build a sky scraper..."
True, but that's because of comparatively recent developments in geotechnical engineering. They needed it during the first wave of skyscraper development.
- rhino369 11y agoThe first NYC ones certainly used bedrock. But floating raft system was invented in Chicago in 1882. So I wouldn't say recent.