The big hole

I photographed this before a couple of years ago. Over the weekend I had my grandson drive me out there to see if he had any idea what could have happened to this silo! We mulled it over and decided it must have been a catastrophic structural failure (not an explosion or damage from the outside). Of course, I had to take another shot.

Update: I've finally done a little research...

- This is what silo explosions look like: tinyurl.com/y7s5h7ml (BAD!)
- This is what a concrete silo structural collapse looks like:
www.bpneal.com/portfolio-silo.asp (Only one that was close to my photo.)
www.mariettasilos.com/silos-safety

Almost all structural collapses I found were steel silos, or the "hole" in the concrete collapses were at the bottom, or were horizontal breaks.

And, something delightful in Australia:
www.stockandland.com.au/story/3650339/brim-silos-a-must-see-attraction-photos/#slide=50