That's what they pay the engineers to figure out?
Okay, it seems they were using 60 ft plates (I think I heard that on CNN). I'm not sure how they were doing it, but since the breach was 200 ft wide, I guess it wouldn't be quite as easy as I was thinking (and they might not have been able to do this sooner if they needed to get that plate custom manufactured for the job). I kind of like that barge idea.
Maybe they need a Navy Corps of Engineers instead of an Army Corps for this job; just park a big ship planned to be decommissioned in the hole.
(Shhh...Don't tell my friend that I wasn't quite
right about that steel plate idea, he'll never let me live it down after I rubbed it in.)