Barely, it will suffice for immeadiate protections. But to make sure radiological contamination don't permeate down through the above, you will need
to construct a barrier. I can find a diagram of a layered barrier. Made of those cheap flimsy doors, that are just two thin plys, the hollow ones.
Fill em with sand and layer it about four feet thick, be creative. The earth inside the layers of doors will absorb most contamination from the fall
out.
When I find the link I'll post it, if some one else don't first.
The farther away from the contamination the better, virtical or horizontal.
Did a search for some things;
This handbook is written for radiation safety in shelters in areas that will not be affected by the primary nuclear weapons effects of blast, fire,
and initial nuclear radiation. In a nuclear war, up to 90 percent of the land area of the 48 states of the United States could be covered with
radioactive fallout that would deliver hazardous nuclear radiation to an unprotected person over a period of several days before decaying to much less
hazardous levels.
Radiation Safety In Shelters
WHAT TO DO WITH LESS THAN 3 DAYS TO A NUCLEAR DISASTER!
Civil Defense
That should hold you over.
Also, there are many great threads/pages on ATS with info on nuke threats. One I remember has a diagram for blast and or fall out the radius,
depending on what figures you put in. Really awsome site.
[edit on 21-9-2006 by ADVISOR]