How do you fix a sink hole this big?

[RStar]

Originally Posted by Not Afraid

I think one of these, filled with dirt, would just cause another sinkhole.

Good point! I wouldn't want to drive it to the edge, would you?

One thing that makes me wonder about "filling in the hole" is the fact that there is no bottom. It seems to open up to a large cavern. If the hole is only but the tip of the iceberg in this void, then how in the world could they begin to repair this? Or will it just become a permanent and ever widening hole? (Which reminds me of some people I know)