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We bought a really nice, clean double-wide in a small Nebraska town. There's a pretty good-sized crawlspace underneath...not quite tall enough to stand in, but just about.
There's a tornado shelter in town, but in the event of severe weather, it's kind of risky going out of the house to drive up there...after all, lightning kills more people than tornadoes.
So my question is, would it be possible to turn that crawlspace (or even just part of it) into an unfinished basement, solely for use during a tornado warning? Would this be a dangerous thing to do? And--if such a thing is even feasible--what sort of ballpark $$ figure would we be talking about here?
Any other ideas of how we could make an underground shelter?
Thanks in advance!