Not sure.
It’s been open since 94 so for 20 yrs it was OK.
Obviously there will be some investigation as to did the contractor do seismic work in preparation?
Or can something like this occur over time and wasn’t present then?
I think it can occur over time and wasn’t present then. I’m not aware of any requirement for contractors to do seismic work, but I’m not close to that industry. Florida gets hit with sinkholes the most. Not sure how common it is in Kentucky. I know they have a lot of caves, but they are usually pretty stable.
Read TN and FL are the only states that require insurance to make sinkhole coverage available. But it might require a rider. My guess is there insurance probably covers it.
“Or can something like this occur over time and wasnt present then?”
Didn’t read the article. It is probably limestone, with portions of it dissolving as water flows through it forming a cave that gets bigger until it collapses. Often with no buildings, roads, etc. things are fine. Add those structures in and end up dumping more water into one place like from a roof drain and now you have a concentrated flow of water that either creates a new cave, or makes one that was deeper down worse. Now to look at the picture!
Gotta have something to do with water someplace.....as usual
We also have to remember that this is relatively close to the Mammoth Cave network and in an area comprised of limestone, which leads to the development of caverns.
We visited last year. I really was hoping to take a factory tour, but they hadn’t reopened from the retooling closure for the new ‘Vette.
I think it's just something endemic to the area.
There are 257 sinkholes in a one-mile radius of the museum. (See: http://www.plotscan.com