Company that would build underground Shooting lane on private property?

[Grant H.]

Thanks, I assume someone was driving on it??
Either during backfill or after. I've had crew members destroy corrugated metal pipe immediately after installation, but it will hold up for thirty years if it's not point loaded. It looks like the dirt is very wet too. That would add a lot of pressure.

I doubt anyone was driving on it.

These are built to carry the load very specifically, and when the load isn't in the right places, they fail very quickly.