@ismh86 Surely Nashville’s underground conditions have lots of historical data from previous construction. I’d expect The Boring Company to confirm that data with core samples that go past the depth of the tunnel and are spaced along the path, not a small, shallow pit at one end of the route.
@drdrang Did @ismh86 talk about this on a podcast somewhere or something? Because I am here (in Nashville) for it.
Mr. Musk Goes to Nashville - 512 Pixels

Another Elon Musk company is doing things in another Tennessee city, as Hannah McDonald reports: Aerial footage from Sky 5 shows a freshly dug pit near the base of the State Capitol, a visible sign of progress on The Boring Company’s controversial underground transportation project in Tennessee. The 10-foot-deep, 20-by-20-foot test pit was dug this […]

512 Pixels
@ismh86 We should ask the good @drdrang to comment on the supposed “hardness” of the limestone on which Nashville is built. (Hint: It isn’t.)
@mackenab @ismh86 I refuse to practice geotechnical engineering without a license.
@drdrang @ismh86 That’s fair. But the historical data from building in Nashville suggests that “bedrock too hard” is not a common problem encountered here. It’s more like “oops, accidentally changed the underground drainage patterns and caused a sinkhole.”