A wooden frame was mounted to the wall with a hinge for the ceiling, with the concrete blocks stored nearby. The initial construction of this design was done prior to the emergency, requiring about 33 hours of labor. The next least expensive was the design shown at right, with an estimated cost of $97 (about $900 in 2021). The material consisted of 100 sandbags, 10,000 pounds of dry sand, and some miscellaneous lumber, with a cost of only $30 ($279 in 2021 dollars). He estimated that the design would reduce radiation levels by a factor of 200-1000, meaning that it would save lives even in areas of high fallout. Stephenson of the University of Connecticut’s nuclear engineering program.
The other end of the cost spectrum was represented by the design shown at left courtesy of Prof. It was an underground room that could be used in peacetime for some other use, with an attractive patio on top, complete with a built-in grill. The deluxe model shown above, with an estimated cost of $1841 (about $17,000 in 2021 dollars) was typical of that offered by commercial builders. Sixty years ago this month, the Cuban Missile Crisis was still almost a year off, but protection from nuclear weapons was already on the minds of many Americans, and the December 1961 issue of Popular Mechanics carried construction details for four fallout shelters.
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