In order to become a fallout shelter a building had to meet certain criteria and then the Office of Civil defense would let it be marked as a fallout shelter. WGBH reports the criteria for a building to be designated a fallout shelter as suitable if they met three criteria. First was that they provided physical protection usually meaning they were fairly airtight with thick concrete walls: “They had to have a protection factor of at least 40 which meant you would receive 1/40th the radiation inside the building than you would outside, unprotected.” The building also had to be built away from likely fallout therefore shelters were built in basements of schools, and in the middle floors of taller buildings. The third requirement was that there had to be room for at least 50 people with 10 square feet of space per person.
Shelter sign at the Boston Public Library |
Bomb shelters and fallout shelters are two different entities and the terms are frequently confused with each other. A bomb shelter is designed to protect people from the physical force of a bomb, while a fallout shelter is supposed to protect one from the radioactive particles in the air after the bomb drops. The Massachusetts Emergency Management Agency bunker in Framingham is designed to protect people against a severe bomb blast making it an example of a bomb blast.
As a result of the nuclear threat in the 1960s’, people were building shelters in their own backyards. The Boston Globe Magazine published an article on December 12, 1999 about a family in Tewksbury that has a bomb shelter in their backyard. Several families got together to build a 22 by 38 foot shelter space after President Kennedy, responding to the Berlin crisis gave a speech in the summer of 1961 telling citizens to build fallout shelters. The project started out amicably with each family chipping in $600. Then disagreements started with what foods to stock. Then there was a discussion about what to do if neighbors wanted to break into the fallout shelter during a nuclear attack. One neighbor, who participated in the building of the shelter said to shoot them which made another participant want to scrap the whole project. The shelter is still there because it is hard to remove something that is built out of concrete and steel. There could be hundreds or more of these backyard shelters in backyards all over Massachusetts and the country unbeknownst to current residents.
Resources for Further Reading and Research
- The Family fallout shelter by the U.S. Office of Civil and Defense Mobilization, 1959
- Plan for Massachusetts home fallout protection survey, 1968
- Shelter guide: facts you should know, 1951
Naomi Allen
Reference Librarian