Yes. And any tall building in SF&#x27;s Embarcadero stands in defiance of the need for bedrock. A lot of the land there is just old, accidental landfill.<p>Also, I think, but, I&#x27;m not sure, that they built this extremely large, heavy structure right over the bay itself a few years back, something about helping cars get from Oakland to SF and back. I don&#x27;t know how much bedrock they found underneath the supports for that thing, whatever it&#x27;s called. Can&#x27;t seem to remember its name ...