going to show my stupid here, but how would one get information on building such a thing here in the States.
Mine would have to be big enough for about Seven people, Eight dogs and Two cats.
You don't seriously think I'd forget my four-legged babies do you?
Do a google search for 'building bomb shelter' and you will get back a slew of companies that can build one for you. Also you can find info on how to build one yourself.
"The only stupid question is the one you don't ask."
Buried in these marathon links:
Nuclear, Biological, & Chemical Warfare- Survival Skills, Pt. II
are links to fallout shelter info. And you're a good man (?) for remembering your animal friends.
This is a "survival shelter" not a picinic tent!
Animals take up precious AIR, food, and water, AND significantly complicate the waste management problem.
You need to be prepared for 30 days and those critters are going foul the air big time.
The air management system is not an industrial air conditioner!