re: Did anyone here actually witness the Lake Peigneur disaster?

My grandfather worked for Diamond crystal, was there picking up his check when it happened. He would tell us about watching the trees disappear and the ground shaking. I have a friend that lives on the lake and remember a barge popping up out of the hole, several years after. Crazy to think there are trucks, forklifts, and dump trucks still down there.
Always think about how far under Delcambre those tunnels go and could they cave in one day.